Mercurial > hg
annotate mercurial/revlog.py @ 32597:9df4c2613fca
test-obsolete-bundle-strip: test bundling in the first case
We adds a shell function checking that the relevant markers and the bundled
markers matches. Updating all cases in the file at the same time is a bit
overwhelming and harder to double checks. So each cases come in its own patch.
author | Pierre-Yves David <pierre-yves.david@octobus.net> |
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date | Fri, 26 May 2017 03:11:53 +0200 |
parents | 34e9b8b94f66 |
children | 7b17f9de6d3e |
rev | line source |
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1 # revlog.py - storage back-end for mercurial |
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2 # |
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3 # Copyright 2005-2007 Matt Mackall <mpm@selenic.com> |
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4 # |
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5 # This software may be used and distributed according to the terms of the |
10263 | 6 # GNU General Public License version 2 or any later version. |
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7 |
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8 """Storage back-end for Mercurial. |
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9 |
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10 This provides efficient delta storage with O(1) retrieve and append |
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11 and O(changes) merge between branches. |
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12 """ |
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13 |
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14 from __future__ import absolute_import |
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15 |
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16 import collections |
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17 import errno |
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18 import hashlib |
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19 import os |
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20 import struct |
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21 import zlib |
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22 |
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23 # import stuff from node for others to import from revlog |
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24 from .node import ( |
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25 bin, |
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26 hex, |
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27 nullid, |
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28 nullrev, |
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29 wdirrev, |
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30 ) |
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31 from .i18n import _ |
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32 from . import ( |
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33 ancestor, |
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34 error, |
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35 mdiff, |
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36 policy, |
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37 pycompat, |
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38 templatefilters, |
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39 util, |
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40 ) |
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41 |
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42 parsers = policy.importmod(r'parsers') |
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43 |
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44 _pack = struct.pack |
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45 _unpack = struct.unpack |
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46 # Aliased for performance. |
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47 _zlibdecompress = zlib.decompress |
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48 |
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49 # revlog header flags |
2072 | 50 REVLOGV0 = 0 |
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51 REVLOGV1 = 1 |
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52 FLAG_INLINE_DATA = (1 << 16) |
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53 FLAG_GENERALDELTA = (1 << 17) |
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54 REVLOG_DEFAULT_FLAGS = FLAG_INLINE_DATA |
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55 REVLOG_DEFAULT_FORMAT = REVLOGV1 |
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56 REVLOG_DEFAULT_VERSION = REVLOG_DEFAULT_FORMAT | REVLOG_DEFAULT_FLAGS |
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57 REVLOGV1_FLAGS = FLAG_INLINE_DATA | FLAG_GENERALDELTA |
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58 |
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59 # revlog index flags |
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60 REVIDX_ISCENSORED = (1 << 15) # revision has censor metadata, must be verified |
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61 REVIDX_ELLIPSIS = (1 << 14) # revision hash does not match data (narrowhg) |
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62 REVIDX_EXTSTORED = (1 << 13) # revision data is stored externally |
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63 REVIDX_DEFAULT_FLAGS = 0 |
30745 | 64 # stable order in which flags need to be processed and their processors applied |
65 REVIDX_FLAGS_ORDER = [ | |
66 REVIDX_ISCENSORED, | |
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67 REVIDX_ELLIPSIS, |
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68 REVIDX_EXTSTORED, |
30745 | 69 ] |
70 REVIDX_KNOWN_FLAGS = util.bitsfrom(REVIDX_FLAGS_ORDER) | |
2073 | 71 |
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72 # max size of revlog with inline data |
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73 _maxinline = 131072 |
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75 |
7633 | 76 RevlogError = error.RevlogError |
77 LookupError = error.LookupError | |
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78 CensoredNodeError = error.CensoredNodeError |
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80 | |
81 # Store flag processors (cf. 'addflagprocessor()' to register) | |
82 _flagprocessors = { | |
83 REVIDX_ISCENSORED: None, | |
84 } | |
85 | |
86 def addflagprocessor(flag, processor): | |
87 """Register a flag processor on a revision data flag. | |
88 | |
89 Invariant: | |
90 - Flags need to be defined in REVIDX_KNOWN_FLAGS and REVIDX_FLAGS_ORDER. | |
91 - Only one flag processor can be registered on a specific flag. | |
92 - flagprocessors must be 3-tuples of functions (read, write, raw) with the | |
93 following signatures: | |
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94 - (read) f(self, rawtext) -> text, bool |
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95 - (write) f(self, text) -> rawtext, bool |
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96 - (raw) f(self, rawtext) -> bool |
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97 "text" is presented to the user. "rawtext" is stored in revlog data, not |
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98 directly visible to the user. |
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100 the returned text can be used for hash integrity checking. For example, |
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101 if "write" returns False, then "text" is used to generate hash. If |
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102 "write" returns True, that basically means "rawtext" returned by "write" |
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103 should be used to generate hash. Usually, "write" and "read" return |
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104 different booleans. And "raw" returns a same boolean as "write". |
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106 Note: The 'raw' transform is used for changegroup generation and in some | |
107 debug commands. In this case the transform only indicates whether the | |
108 contents can be used for hash integrity checks. | |
109 """ | |
110 if not flag & REVIDX_KNOWN_FLAGS: | |
111 msg = _("cannot register processor on unknown flag '%#x'.") % (flag) | |
112 raise ProgrammingError(msg) | |
113 if flag not in REVIDX_FLAGS_ORDER: | |
114 msg = _("flag '%#x' undefined in REVIDX_FLAGS_ORDER.") % (flag) | |
115 raise ProgrammingError(msg) | |
116 if flag in _flagprocessors: | |
117 msg = _("cannot register multiple processors on flag '%#x'.") % (flag) | |
118 raise error.Abort(msg) | |
119 _flagprocessors[flag] = processor | |
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120 |
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121 def getoffset(q): |
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122 return int(q >> 16) |
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123 |
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124 def gettype(q): |
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125 return int(q & 0xFFFF) |
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126 |
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127 def offset_type(offset, type): |
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128 if (type & ~REVIDX_KNOWN_FLAGS) != 0: |
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129 raise ValueError('unknown revlog index flags') |
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130 return int(int(offset) << 16 | type) |
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131 |
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132 _nullhash = hashlib.sha1(nullid) |
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133 |
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134 def hash(text, p1, p2): |
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135 """generate a hash from the given text and its parent hashes |
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136 |
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137 This hash combines both the current file contents and its history |
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138 in a manner that makes it easy to distinguish nodes with the same |
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139 content in the revision graph. |
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140 """ |
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141 # As of now, if one of the parent node is null, p2 is null |
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142 if p2 == nullid: |
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143 # deep copy of a hash is faster than creating one |
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144 s = _nullhash.copy() |
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145 s.update(p1) |
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146 else: |
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147 # none of the parent nodes are nullid |
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148 l = [p1, p2] |
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149 l.sort() |
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150 s = hashlib.sha1(l[0]) |
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151 s.update(l[1]) |
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152 s.update(text) |
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153 return s.digest() |
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154 |
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155 # index v0: |
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156 # 4 bytes: offset |
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157 # 4 bytes: compressed length |
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158 # 4 bytes: base rev |
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159 # 4 bytes: link rev |
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160 # 20 bytes: parent 1 nodeid |
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161 # 20 bytes: parent 2 nodeid |
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162 # 20 bytes: nodeid |
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163 indexformatv0 = ">4l20s20s20s" |
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164 |
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165 class revlogoldio(object): |
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166 def __init__(self): |
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167 self.size = struct.calcsize(indexformatv0) |
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168 |
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169 def parseindex(self, data, inline): |
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170 s = self.size |
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171 index = [] |
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172 nodemap = {nullid: nullrev} |
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173 n = off = 0 |
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174 l = len(data) |
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175 while off + s <= l: |
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176 cur = data[off:off + s] |
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177 off += s |
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178 e = _unpack(indexformatv0, cur) |
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179 # transform to revlogv1 format |
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180 e2 = (offset_type(e[0], 0), e[1], -1, e[2], e[3], |
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181 nodemap.get(e[4], nullrev), nodemap.get(e[5], nullrev), e[6]) |
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182 index.append(e2) |
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183 nodemap[e[6]] = n |
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184 n += 1 |
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185 |
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186 # add the magic null revision at -1 |
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187 index.append((0, 0, 0, -1, -1, -1, -1, nullid)) |
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188 |
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189 return index, nodemap, None |
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190 |
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191 def packentry(self, entry, node, version, rev): |
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192 if gettype(entry[0]): |
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193 raise RevlogError(_('index entry flags need revlog version 1')) |
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194 e2 = (getoffset(entry[0]), entry[1], entry[3], entry[4], |
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195 node(entry[5]), node(entry[6]), entry[7]) |
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196 return _pack(indexformatv0, *e2) |
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197 |
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198 # index ng: |
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199 # 6 bytes: offset |
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200 # 2 bytes: flags |
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201 # 4 bytes: compressed length |
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202 # 4 bytes: uncompressed length |
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203 # 4 bytes: base rev |
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204 # 4 bytes: link rev |
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205 # 4 bytes: parent 1 rev |
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206 # 4 bytes: parent 2 rev |
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207 # 32 bytes: nodeid |
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208 indexformatng = ">Qiiiiii20s12x" |
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209 versionformat = ">I" |
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210 |
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211 # corresponds to uncompressed length of indexformatng (2 gigs, 4-byte |
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212 # signed integer) |
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213 _maxentrysize = 0x7fffffff |
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214 |
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215 class revlogio(object): |
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216 def __init__(self): |
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217 self.size = struct.calcsize(indexformatng) |
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218 |
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219 def parseindex(self, data, inline): |
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220 # call the C implementation to parse the index data |
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221 index, cache = parsers.parse_index2(data, inline) |
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222 return index, getattr(index, 'nodemap', None), cache |
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223 |
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224 def packentry(self, entry, node, version, rev): |
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225 p = _pack(indexformatng, *entry) |
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226 if rev == 0: |
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227 p = _pack(versionformat, version) + p[4:] |
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228 return p |
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229 |
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230 class revlog(object): |
1083 | 231 """ |
232 the underlying revision storage object | |
233 | |
234 A revlog consists of two parts, an index and the revision data. | |
235 | |
236 The index is a file with a fixed record size containing | |
6912 | 237 information on each revision, including its nodeid (hash), the |
1083 | 238 nodeids of its parents, the position and offset of its data within |
239 the data file, and the revision it's based on. Finally, each entry | |
240 contains a linkrev entry that can serve as a pointer to external | |
241 data. | |
242 | |
243 The revision data itself is a linear collection of data chunks. | |
244 Each chunk represents a revision and is usually represented as a | |
245 delta against the previous chunk. To bound lookup time, runs of | |
246 deltas are limited to about 2 times the length of the original | |
247 version data. This makes retrieval of a version proportional to | |
248 its size, or O(1) relative to the number of revisions. | |
249 | |
250 Both pieces of the revlog are written to in an append-only | |
251 fashion, which means we never need to rewrite a file to insert or | |
252 remove data, and can use some simple techniques to avoid the need | |
253 for locking while reading. | |
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254 |
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255 If checkambig, indexfile is opened with checkambig=True at |
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256 writing, to avoid file stat ambiguity. |
1083 | 257 """ |
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258 def __init__(self, opener, indexfile, datafile=None, checkambig=False): |
1083 | 259 """ |
260 create a revlog object | |
261 | |
262 opener is a function that abstracts the file opening operation | |
263 and can be used to implement COW semantics or the like. | |
264 """ | |
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265 self.indexfile = indexfile |
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266 self.datafile = datafile or (indexfile[:-2] + ".d") |
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267 self.opener = opener |
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268 # When True, indexfile is opened with checkambig=True at writing, to |
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269 # avoid file stat ambiguity. |
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270 self._checkambig = checkambig |
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271 # 3-tuple of (node, rev, text) for a raw revision. |
4984 | 272 self._cache = None |
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273 # Maps rev to chain base rev. |
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274 self._chainbasecache = util.lrucachedict(100) |
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275 # 2-tuple of (offset, data) of raw data from the revlog at an offset. |
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276 self._chunkcache = (0, '') |
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277 # How much data to read and cache into the raw revlog data cache. |
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278 self._chunkcachesize = 65536 |
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279 self._maxchainlen = None |
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280 self._aggressivemergedeltas = False |
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281 self.index = [] |
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282 # Mapping of partial identifiers to full nodes. |
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283 self._pcache = {} |
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284 # Mapping of revision integer to full node. |
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285 self._nodecache = {nullid: nullrev} |
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286 self._nodepos = None |
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287 self._compengine = 'zlib' |
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288 |
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289 v = REVLOG_DEFAULT_VERSION |
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290 opts = getattr(opener, 'options', None) |
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291 if opts is not None: |
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14549
diff
changeset
|
292 if 'revlogv1' in opts: |
497819817307
revlog: use getattr instead of hasattr
Augie Fackler <durin42@gmail.com>
parents:
14549
diff
changeset
|
293 if 'generaldelta' in opts: |
32315
67026d65a4fc
revlog: rename constants (API)
Gregory Szorc <gregory.szorc@gmail.com>
parents:
32307
diff
changeset
|
294 v |= FLAG_GENERALDELTA |
14333
31a5973fcf96
revlog: get rid of defversion
Sune Foldager <cryo@cyanite.org>
parents:
14325
diff
changeset
|
295 else: |
31a5973fcf96
revlog: get rid of defversion
Sune Foldager <cryo@cyanite.org>
parents:
14325
diff
changeset
|
296 v = 0 |
20180
969148b49fc6
revlog: allow tuning of the chunk cache size (via format.chunkcachesize)
Brodie Rao <brodie@sf.io>
parents:
20179
diff
changeset
|
297 if 'chunkcachesize' in opts: |
969148b49fc6
revlog: allow tuning of the chunk cache size (via format.chunkcachesize)
Brodie Rao <brodie@sf.io>
parents:
20179
diff
changeset
|
298 self._chunkcachesize = opts['chunkcachesize'] |
23255
76effa770ff9
revlog: add config variable for limiting delta-chain length
Mateusz Kwapich <mitrandir@fb.com>
parents:
23254
diff
changeset
|
299 if 'maxchainlen' in opts: |
76effa770ff9
revlog: add config variable for limiting delta-chain length
Mateusz Kwapich <mitrandir@fb.com>
parents:
23254
diff
changeset
|
300 self._maxchainlen = opts['maxchainlen'] |
26118
049005de325e
revlog: add an aggressivemergedelta option
Durham Goode <durham@fb.com>
parents:
26117
diff
changeset
|
301 if 'aggressivemergedeltas' in opts: |
049005de325e
revlog: add an aggressivemergedelta option
Durham Goode <durham@fb.com>
parents:
26117
diff
changeset
|
302 self._aggressivemergedeltas = opts['aggressivemergedeltas'] |
26907
dfab6edb98e3
format: introduce 'format.usegeneraldelta`
Pierre-Yves David <pierre-yves.david@fb.com>
parents:
26705
diff
changeset
|
303 self._lazydeltabase = bool(opts.get('lazydeltabase', False)) |
30818
4c0a5a256ae8
localrepo: experimental support for non-zlib revlog compression
Gregory Szorc <gregory.szorc@gmail.com>
parents:
30817
diff
changeset
|
304 if 'compengine' in opts: |
4c0a5a256ae8
localrepo: experimental support for non-zlib revlog compression
Gregory Szorc <gregory.szorc@gmail.com>
parents:
30817
diff
changeset
|
305 self._compengine = opts['compengine'] |
20180
969148b49fc6
revlog: allow tuning of the chunk cache size (via format.chunkcachesize)
Brodie Rao <brodie@sf.io>
parents:
20179
diff
changeset
|
306 |
969148b49fc6
revlog: allow tuning of the chunk cache size (via format.chunkcachesize)
Brodie Rao <brodie@sf.io>
parents:
20179
diff
changeset
|
307 if self._chunkcachesize <= 0: |
969148b49fc6
revlog: allow tuning of the chunk cache size (via format.chunkcachesize)
Brodie Rao <brodie@sf.io>
parents:
20179
diff
changeset
|
308 raise RevlogError(_('revlog chunk cache size %r is not greater ' |
969148b49fc6
revlog: allow tuning of the chunk cache size (via format.chunkcachesize)
Brodie Rao <brodie@sf.io>
parents:
20179
diff
changeset
|
309 'than 0') % self._chunkcachesize) |
969148b49fc6
revlog: allow tuning of the chunk cache size (via format.chunkcachesize)
Brodie Rao <brodie@sf.io>
parents:
20179
diff
changeset
|
310 elif self._chunkcachesize & (self._chunkcachesize - 1): |
969148b49fc6
revlog: allow tuning of the chunk cache size (via format.chunkcachesize)
Brodie Rao <brodie@sf.io>
parents:
20179
diff
changeset
|
311 raise RevlogError(_('revlog chunk cache size %r is not a power ' |
969148b49fc6
revlog: allow tuning of the chunk cache size (via format.chunkcachesize)
Brodie Rao <brodie@sf.io>
parents:
20179
diff
changeset
|
312 'of 2') % self._chunkcachesize) |
11928
b69899dbad40
revlog: parentdelta flags for revlog index
Pradeepkumar Gayam <in3xes@gmail.com>
parents:
11759
diff
changeset
|
313 |
26241
eb97d49768cc
revlog: rename generic "i" variable to "indexdata"
Gregory Szorc <gregory.szorc@gmail.com>
parents:
26118
diff
changeset
|
314 indexdata = '' |
14334
85c82ebc96a3
changelog: don't use generaldelta
Sune Foldager <cryo@cyanite.org>
parents:
14333
diff
changeset
|
315 self._initempty = True |
0
9117c6561b0b
Add back links from file revisions to changeset revisions
mpm@selenic.com
parents:
diff
changeset
|
316 try: |
1784
2e0a288ca93e
revalidate revlog data after locking the repo (issue132)
Benoit Boissinot <benoit.boissinot@ens-lyon.org>
parents:
1749
diff
changeset
|
317 f = self.opener(self.indexfile) |
26241
eb97d49768cc
revlog: rename generic "i" variable to "indexdata"
Gregory Szorc <gregory.szorc@gmail.com>
parents:
26118
diff
changeset
|
318 indexdata = f.read() |
13400
14f3795a5ed7
explicitly close files
Dan Villiom Podlaski Christiansen <danchr@gmail.com>
parents:
13284
diff
changeset
|
319 f.close() |
26241
eb97d49768cc
revlog: rename generic "i" variable to "indexdata"
Gregory Szorc <gregory.szorc@gmail.com>
parents:
26118
diff
changeset
|
320 if len(indexdata) > 0: |
eb97d49768cc
revlog: rename generic "i" variable to "indexdata"
Gregory Szorc <gregory.szorc@gmail.com>
parents:
26118
diff
changeset
|
321 v = struct.unpack(versionformat, indexdata[:4])[0] |
14334
85c82ebc96a3
changelog: don't use generaldelta
Sune Foldager <cryo@cyanite.org>
parents:
14333
diff
changeset
|
322 self._initempty = False |
25660
328739ea70c3
global: mass rewrite to use modern exception syntax
Gregory Szorc <gregory.szorc@gmail.com>
parents:
25459
diff
changeset
|
323 except IOError as inst: |
1322
b3d44e9b3092
Make revlog constructor more discerning in its treatment of errors.
Bryan O'Sullivan <bos@serpentine.com>
parents:
1232
diff
changeset
|
324 if inst.errno != errno.ENOENT: |
b3d44e9b3092
Make revlog constructor more discerning in its treatment of errors.
Bryan O'Sullivan <bos@serpentine.com>
parents:
1232
diff
changeset
|
325 raise |
4985
e6525e459157
revlog: simplify revlog.__init__
Matt Mackall <mpm@selenic.com>
parents:
4984
diff
changeset
|
326 |
e6525e459157
revlog: simplify revlog.__init__
Matt Mackall <mpm@selenic.com>
parents:
4984
diff
changeset
|
327 self.version = v |
32315
67026d65a4fc
revlog: rename constants (API)
Gregory Szorc <gregory.szorc@gmail.com>
parents:
32307
diff
changeset
|
328 self._inline = v & FLAG_INLINE_DATA |
67026d65a4fc
revlog: rename constants (API)
Gregory Szorc <gregory.szorc@gmail.com>
parents:
32307
diff
changeset
|
329 self._generaldelta = v & FLAG_GENERALDELTA |
2073 | 330 flags = v & ~0xFFFF |
331 fmt = v & 0xFFFF | |
32392
36d3559c69a6
revlog: tweak wording and logic for flags validation
Gregory Szorc <gregory.szorc@gmail.com>
parents:
32372
diff
changeset
|
332 if fmt == REVLOGV0: |
36d3559c69a6
revlog: tweak wording and logic for flags validation
Gregory Szorc <gregory.szorc@gmail.com>
parents:
32372
diff
changeset
|
333 if flags: |
36d3559c69a6
revlog: tweak wording and logic for flags validation
Gregory Szorc <gregory.szorc@gmail.com>
parents:
32372
diff
changeset
|
334 raise RevlogError(_('unknown flags (%#04x) in version %d ' |
36d3559c69a6
revlog: tweak wording and logic for flags validation
Gregory Szorc <gregory.szorc@gmail.com>
parents:
32372
diff
changeset
|
335 'revlog %s') % |
36d3559c69a6
revlog: tweak wording and logic for flags validation
Gregory Szorc <gregory.szorc@gmail.com>
parents:
32372
diff
changeset
|
336 (flags >> 16, fmt, self.indexfile)) |
36d3559c69a6
revlog: tweak wording and logic for flags validation
Gregory Szorc <gregory.szorc@gmail.com>
parents:
32372
diff
changeset
|
337 elif fmt == REVLOGV1: |
36d3559c69a6
revlog: tweak wording and logic for flags validation
Gregory Szorc <gregory.szorc@gmail.com>
parents:
32372
diff
changeset
|
338 if flags & ~REVLOGV1_FLAGS: |
36d3559c69a6
revlog: tweak wording and logic for flags validation
Gregory Szorc <gregory.szorc@gmail.com>
parents:
32372
diff
changeset
|
339 raise RevlogError(_('unknown flags (%#04x) in version %d ' |
36d3559c69a6
revlog: tweak wording and logic for flags validation
Gregory Szorc <gregory.szorc@gmail.com>
parents:
32372
diff
changeset
|
340 'revlog %s') % |
36d3559c69a6
revlog: tweak wording and logic for flags validation
Gregory Szorc <gregory.szorc@gmail.com>
parents:
32372
diff
changeset
|
341 (flags >> 16, fmt, self.indexfile)) |
36d3559c69a6
revlog: tweak wording and logic for flags validation
Gregory Szorc <gregory.szorc@gmail.com>
parents:
32372
diff
changeset
|
342 else: |
36d3559c69a6
revlog: tweak wording and logic for flags validation
Gregory Szorc <gregory.szorc@gmail.com>
parents:
32372
diff
changeset
|
343 raise RevlogError(_('unknown version (%d) in revlog %s') % |
36d3559c69a6
revlog: tweak wording and logic for flags validation
Gregory Szorc <gregory.szorc@gmail.com>
parents:
32372
diff
changeset
|
344 (fmt, self.indexfile)) |
4985
e6525e459157
revlog: simplify revlog.__init__
Matt Mackall <mpm@selenic.com>
parents:
4984
diff
changeset
|
345 |
30210
5e4f16874a9f
revlog: make 'storedeltachains' a "public" attribute
Pierre-Yves David <pierre-yves.david@ens-lyon.org>
parents:
30154
diff
changeset
|
346 self.storedeltachains = True |
30154
5e72129d75ed
revlog: add instance variable controlling delta chain use
Gregory Szorc <gregory.szorc@gmail.com>
parents:
30012
diff
changeset
|
347 |
4972
8d0cf46e0dc6
revlog: add revlogio interface
Matt Mackall <mpm@selenic.com>
parents:
4971
diff
changeset
|
348 self._io = revlogio() |
4971
3e6dae278c99
revlog: regroup parsing code
Matt Mackall <mpm@selenic.com>
parents:
4920
diff
changeset
|
349 if self.version == REVLOGV0: |
4972
8d0cf46e0dc6
revlog: add revlogio interface
Matt Mackall <mpm@selenic.com>
parents:
4971
diff
changeset
|
350 self._io = revlogoldio() |
13265
04b302ce2781
revlog: always add the magic nullid/nullrev entry in parseindex
Benoit Boissinot <benoit.boissinot@ens-lyon.org>
parents:
13264
diff
changeset
|
351 try: |
26241
eb97d49768cc
revlog: rename generic "i" variable to "indexdata"
Gregory Szorc <gregory.szorc@gmail.com>
parents:
26118
diff
changeset
|
352 d = self._io.parseindex(indexdata, self._inline) |
13265
04b302ce2781
revlog: always add the magic nullid/nullrev entry in parseindex
Benoit Boissinot <benoit.boissinot@ens-lyon.org>
parents:
13264
diff
changeset
|
353 except (ValueError, IndexError): |
04b302ce2781
revlog: always add the magic nullid/nullrev entry in parseindex
Benoit Boissinot <benoit.boissinot@ens-lyon.org>
parents:
13264
diff
changeset
|
354 raise RevlogError(_("index %s is corrupted") % (self.indexfile)) |
13268
fff12b3d953a
revlog: explicit test and explicit variable names
Benoit Boissinot <benoit.boissinot@ens-lyon.org>
parents:
13267
diff
changeset
|
355 self.index, nodemap, self._chunkcache = d |
fff12b3d953a
revlog: explicit test and explicit variable names
Benoit Boissinot <benoit.boissinot@ens-lyon.org>
parents:
13267
diff
changeset
|
356 if nodemap is not None: |
13275
68da048b4c88
revlog: incrementally build node cache with linear searches
Matt Mackall <mpm@selenic.com>
parents:
13268
diff
changeset
|
357 self.nodemap = self._nodecache = nodemap |
13265
04b302ce2781
revlog: always add the magic nullid/nullrev entry in parseindex
Benoit Boissinot <benoit.boissinot@ens-lyon.org>
parents:
13264
diff
changeset
|
358 if not self._chunkcache: |
04b302ce2781
revlog: always add the magic nullid/nullrev entry in parseindex
Benoit Boissinot <benoit.boissinot@ens-lyon.org>
parents:
13264
diff
changeset
|
359 self._chunkclear() |
23306
f7a42f8e82bd
revlog: cache chain info after calculating it for a rev (issue4452)
Siddharth Agarwal <sid0@fb.com>
parents:
23288
diff
changeset
|
360 # revnum -> (chain-length, sum-delta-length) |
f7a42f8e82bd
revlog: cache chain info after calculating it for a rev (issue4452)
Siddharth Agarwal <sid0@fb.com>
parents:
23288
diff
changeset
|
361 self._chaininfocache = {} |
30817
2b279126b8f5
revlog: use compression engine APIs for decompression
Gregory Szorc <gregory.szorc@gmail.com>
parents:
30795
diff
changeset
|
362 # revlog header -> revlog compressor |
2b279126b8f5
revlog: use compression engine APIs for decompression
Gregory Szorc <gregory.szorc@gmail.com>
parents:
30795
diff
changeset
|
363 self._decompressors = {} |
116
e484cd5ec282
Only use lazy indexing for big indices and avoid the overhead of the
mpm@selenic.com
parents:
115
diff
changeset
|
364 |
30795
78ac56aebab6
revlog: use compression engine API for compression
Gregory Szorc <gregory.szorc@gmail.com>
parents:
30793
diff
changeset
|
365 @util.propertycache |
78ac56aebab6
revlog: use compression engine API for compression
Gregory Szorc <gregory.szorc@gmail.com>
parents:
30793
diff
changeset
|
366 def _compressor(self): |
30818
4c0a5a256ae8
localrepo: experimental support for non-zlib revlog compression
Gregory Szorc <gregory.szorc@gmail.com>
parents:
30817
diff
changeset
|
367 return util.compengines[self._compengine].revlogcompressor() |
30795
78ac56aebab6
revlog: use compression engine API for compression
Gregory Szorc <gregory.szorc@gmail.com>
parents:
30793
diff
changeset
|
368 |
4980
fc44c8df9d99
revlog: some codingstyle cleanups
Matt Mackall <mpm@selenic.com>
parents:
4979
diff
changeset
|
369 def tip(self): |
fc44c8df9d99
revlog: some codingstyle cleanups
Matt Mackall <mpm@selenic.com>
parents:
4979
diff
changeset
|
370 return self.node(len(self.index) - 2) |
24030
828dc8db5515
revlog: add __contains__ for fast membership test
Yuya Nishihara <yuya@tcha.org>
parents:
23857
diff
changeset
|
371 def __contains__(self, rev): |
828dc8db5515
revlog: add __contains__ for fast membership test
Yuya Nishihara <yuya@tcha.org>
parents:
23857
diff
changeset
|
372 return 0 <= rev < len(self) |
6750
fb42030d79d6
add __len__ and __iter__ methods to repo and revlog
Matt Mackall <mpm@selenic.com>
parents:
6703
diff
changeset
|
373 def __len__(self): |
4980
fc44c8df9d99
revlog: some codingstyle cleanups
Matt Mackall <mpm@selenic.com>
parents:
4979
diff
changeset
|
374 return len(self.index) - 1 |
6750
fb42030d79d6
add __len__ and __iter__ methods to repo and revlog
Matt Mackall <mpm@selenic.com>
parents:
6703
diff
changeset
|
375 def __iter__(self): |
17951
6f79c32c0bdf
commit: increase perf by avoiding unnecessary filteredrevs check
Durham Goode <durham@fb.com>
parents:
17674
diff
changeset
|
376 return iter(xrange(len(self))) |
17672
474047947b8f
clfilter: make the revlog class responsible of all its iteration
Pierre-Yves David <pierre-yves.david@logilab.fr>
parents:
17537
diff
changeset
|
377 def revs(self, start=0, stop=None): |
474047947b8f
clfilter: make the revlog class responsible of all its iteration
Pierre-Yves David <pierre-yves.david@logilab.fr>
parents:
17537
diff
changeset
|
378 """iterate over all rev in this revlog (from start to stop)""" |
17975
c56b5b65430d
revlog: allow reverse iteration with revlog.revs
Pierre-Yves David <pierre-yves.david@logilab.fr>
parents:
17972
diff
changeset
|
379 step = 1 |
c56b5b65430d
revlog: allow reverse iteration with revlog.revs
Pierre-Yves David <pierre-yves.david@logilab.fr>
parents:
17972
diff
changeset
|
380 if stop is not None: |
c56b5b65430d
revlog: allow reverse iteration with revlog.revs
Pierre-Yves David <pierre-yves.david@logilab.fr>
parents:
17972
diff
changeset
|
381 if start > stop: |
c56b5b65430d
revlog: allow reverse iteration with revlog.revs
Pierre-Yves David <pierre-yves.david@logilab.fr>
parents:
17972
diff
changeset
|
382 step = -1 |
c56b5b65430d
revlog: allow reverse iteration with revlog.revs
Pierre-Yves David <pierre-yves.david@logilab.fr>
parents:
17972
diff
changeset
|
383 stop += step |
17672
474047947b8f
clfilter: make the revlog class responsible of all its iteration
Pierre-Yves David <pierre-yves.david@logilab.fr>
parents:
17537
diff
changeset
|
384 else: |
17975
c56b5b65430d
revlog: allow reverse iteration with revlog.revs
Pierre-Yves David <pierre-yves.david@logilab.fr>
parents:
17972
diff
changeset
|
385 stop = len(self) |
c56b5b65430d
revlog: allow reverse iteration with revlog.revs
Pierre-Yves David <pierre-yves.david@logilab.fr>
parents:
17972
diff
changeset
|
386 return xrange(start, stop, step) |
13275
68da048b4c88
revlog: incrementally build node cache with linear searches
Matt Mackall <mpm@selenic.com>
parents:
13268
diff
changeset
|
387 |
68da048b4c88
revlog: incrementally build node cache with linear searches
Matt Mackall <mpm@selenic.com>
parents:
13268
diff
changeset
|
388 @util.propertycache |
68da048b4c88
revlog: incrementally build node cache with linear searches
Matt Mackall <mpm@selenic.com>
parents:
13268
diff
changeset
|
389 def nodemap(self): |
14064
e4bfb9c337f3
remove unused imports and variables
Alexander Solovyov <alexander@solovyov.net>
parents:
13831
diff
changeset
|
390 self.rev(self.node(0)) |
13275
68da048b4c88
revlog: incrementally build node cache with linear searches
Matt Mackall <mpm@selenic.com>
parents:
13268
diff
changeset
|
391 return self._nodecache |
13259
3b616dfa4b17
revlog: do revlog node->rev mapping by scanning
Matt Mackall <mpm@selenic.com>
parents:
13258
diff
changeset
|
392 |
16374
29c2ff719715
revlog: add hasnode helper method
Matt Mackall <mpm@selenic.com>
parents:
15890
diff
changeset
|
393 def hasnode(self, node): |
29c2ff719715
revlog: add hasnode helper method
Matt Mackall <mpm@selenic.com>
parents:
15890
diff
changeset
|
394 try: |
29c2ff719715
revlog: add hasnode helper method
Matt Mackall <mpm@selenic.com>
parents:
15890
diff
changeset
|
395 self.rev(node) |
29c2ff719715
revlog: add hasnode helper method
Matt Mackall <mpm@selenic.com>
parents:
15890
diff
changeset
|
396 return True |
29c2ff719715
revlog: add hasnode helper method
Matt Mackall <mpm@selenic.com>
parents:
15890
diff
changeset
|
397 except KeyError: |
29c2ff719715
revlog: add hasnode helper method
Matt Mackall <mpm@selenic.com>
parents:
15890
diff
changeset
|
398 return False |
29c2ff719715
revlog: add hasnode helper method
Matt Mackall <mpm@selenic.com>
parents:
15890
diff
changeset
|
399 |
16414
e8d37b78acfb
parsers: use base-16 trie for faster node->rev mapping
Bryan O'Sullivan <bryano@fb.com>
parents:
16375
diff
changeset
|
400 def clearcaches(self): |
27465
072a675c51f2
revlog: make clearcaches() more effective
Gregory Szorc <gregory.szorc@gmail.com>
parents:
27449
diff
changeset
|
401 self._cache = None |
29830
92ac2baaea86
revlog: use an LRU cache for delta chain bases
Gregory Szorc <gregory.szorc@gmail.com>
parents:
29829
diff
changeset
|
402 self._chainbasecache.clear() |
27465
072a675c51f2
revlog: make clearcaches() more effective
Gregory Szorc <gregory.szorc@gmail.com>
parents:
27449
diff
changeset
|
403 self._chunkcache = (0, '') |
072a675c51f2
revlog: make clearcaches() more effective
Gregory Szorc <gregory.szorc@gmail.com>
parents:
27449
diff
changeset
|
404 self._pcache = {} |
072a675c51f2
revlog: make clearcaches() more effective
Gregory Szorc <gregory.szorc@gmail.com>
parents:
27449
diff
changeset
|
405 |
16414
e8d37b78acfb
parsers: use base-16 trie for faster node->rev mapping
Bryan O'Sullivan <bryano@fb.com>
parents:
16375
diff
changeset
|
406 try: |
e8d37b78acfb
parsers: use base-16 trie for faster node->rev mapping
Bryan O'Sullivan <bryano@fb.com>
parents:
16375
diff
changeset
|
407 self._nodecache.clearcaches() |
e8d37b78acfb
parsers: use base-16 trie for faster node->rev mapping
Bryan O'Sullivan <bryano@fb.com>
parents:
16375
diff
changeset
|
408 except AttributeError: |
e8d37b78acfb
parsers: use base-16 trie for faster node->rev mapping
Bryan O'Sullivan <bryano@fb.com>
parents:
16375
diff
changeset
|
409 self._nodecache = {nullid: nullrev} |
e8d37b78acfb
parsers: use base-16 trie for faster node->rev mapping
Bryan O'Sullivan <bryano@fb.com>
parents:
16375
diff
changeset
|
410 self._nodepos = None |
e8d37b78acfb
parsers: use base-16 trie for faster node->rev mapping
Bryan O'Sullivan <bryano@fb.com>
parents:
16375
diff
changeset
|
411 |
13259
3b616dfa4b17
revlog: do revlog node->rev mapping by scanning
Matt Mackall <mpm@selenic.com>
parents:
13258
diff
changeset
|
412 def rev(self, node): |
13275
68da048b4c88
revlog: incrementally build node cache with linear searches
Matt Mackall <mpm@selenic.com>
parents:
13268
diff
changeset
|
413 try: |
68da048b4c88
revlog: incrementally build node cache with linear searches
Matt Mackall <mpm@selenic.com>
parents:
13268
diff
changeset
|
414 return self._nodecache[node] |
22282
4092d12ba18a
repoview: fix 0L with pack/unpack for 2.4
Matt Mackall <mpm@selenic.com>
parents:
21752
diff
changeset
|
415 except TypeError: |
4092d12ba18a
repoview: fix 0L with pack/unpack for 2.4
Matt Mackall <mpm@selenic.com>
parents:
21752
diff
changeset
|
416 raise |
16414
e8d37b78acfb
parsers: use base-16 trie for faster node->rev mapping
Bryan O'Sullivan <bryano@fb.com>
parents:
16375
diff
changeset
|
417 except RevlogError: |
e8d37b78acfb
parsers: use base-16 trie for faster node->rev mapping
Bryan O'Sullivan <bryano@fb.com>
parents:
16375
diff
changeset
|
418 # parsers.c radix tree lookup failed |
e8d37b78acfb
parsers: use base-16 trie for faster node->rev mapping
Bryan O'Sullivan <bryano@fb.com>
parents:
16375
diff
changeset
|
419 raise LookupError(node, self.indexfile, _('no node')) |
13275
68da048b4c88
revlog: incrementally build node cache with linear searches
Matt Mackall <mpm@selenic.com>
parents:
13268
diff
changeset
|
420 except KeyError: |
16414
e8d37b78acfb
parsers: use base-16 trie for faster node->rev mapping
Bryan O'Sullivan <bryano@fb.com>
parents:
16375
diff
changeset
|
421 # pure python cache lookup failed |
13275
68da048b4c88
revlog: incrementally build node cache with linear searches
Matt Mackall <mpm@selenic.com>
parents:
13268
diff
changeset
|
422 n = self._nodecache |
68da048b4c88
revlog: incrementally build node cache with linear searches
Matt Mackall <mpm@selenic.com>
parents:
13268
diff
changeset
|
423 i = self.index |
68da048b4c88
revlog: incrementally build node cache with linear searches
Matt Mackall <mpm@selenic.com>
parents:
13268
diff
changeset
|
424 p = self._nodepos |
68da048b4c88
revlog: incrementally build node cache with linear searches
Matt Mackall <mpm@selenic.com>
parents:
13268
diff
changeset
|
425 if p is None: |
68da048b4c88
revlog: incrementally build node cache with linear searches
Matt Mackall <mpm@selenic.com>
parents:
13268
diff
changeset
|
426 p = len(i) - 2 |
68da048b4c88
revlog: incrementally build node cache with linear searches
Matt Mackall <mpm@selenic.com>
parents:
13268
diff
changeset
|
427 for r in xrange(p, -1, -1): |
68da048b4c88
revlog: incrementally build node cache with linear searches
Matt Mackall <mpm@selenic.com>
parents:
13268
diff
changeset
|
428 v = i[r][7] |
68da048b4c88
revlog: incrementally build node cache with linear searches
Matt Mackall <mpm@selenic.com>
parents:
13268
diff
changeset
|
429 n[v] = r |
68da048b4c88
revlog: incrementally build node cache with linear searches
Matt Mackall <mpm@selenic.com>
parents:
13268
diff
changeset
|
430 if v == node: |
68da048b4c88
revlog: incrementally build node cache with linear searches
Matt Mackall <mpm@selenic.com>
parents:
13268
diff
changeset
|
431 self._nodepos = r - 1 |
68da048b4c88
revlog: incrementally build node cache with linear searches
Matt Mackall <mpm@selenic.com>
parents:
13268
diff
changeset
|
432 return r |
68da048b4c88
revlog: incrementally build node cache with linear searches
Matt Mackall <mpm@selenic.com>
parents:
13268
diff
changeset
|
433 raise LookupError(node, self.indexfile, _('no node')) |
68da048b4c88
revlog: incrementally build node cache with linear searches
Matt Mackall <mpm@selenic.com>
parents:
13268
diff
changeset
|
434 |
30287
0986f225c149
revlog: reorder index accessors to match data structure order
Gregory Szorc <gregory.szorc@gmail.com>
parents:
30210
diff
changeset
|
435 # Accessors for index entries. |
0986f225c149
revlog: reorder index accessors to match data structure order
Gregory Szorc <gregory.szorc@gmail.com>
parents:
30210
diff
changeset
|
436 |
0986f225c149
revlog: reorder index accessors to match data structure order
Gregory Szorc <gregory.szorc@gmail.com>
parents:
30210
diff
changeset
|
437 # First tuple entry is 8 bytes. First 6 bytes are offset. Last 2 bytes |
0986f225c149
revlog: reorder index accessors to match data structure order
Gregory Szorc <gregory.szorc@gmail.com>
parents:
30210
diff
changeset
|
438 # are flags. |
2072 | 439 def start(self, rev): |
5006
c2febf5420e9
revlog: minor chunk speed-up
Matt Mackall <mpm@selenic.com>
parents:
5005
diff
changeset
|
440 return int(self.index[rev][0] >> 16) |
30287
0986f225c149
revlog: reorder index accessors to match data structure order
Gregory Szorc <gregory.szorc@gmail.com>
parents:
30210
diff
changeset
|
441 |
0986f225c149
revlog: reorder index accessors to match data structure order
Gregory Szorc <gregory.szorc@gmail.com>
parents:
30210
diff
changeset
|
442 def flags(self, rev): |
0986f225c149
revlog: reorder index accessors to match data structure order
Gregory Szorc <gregory.szorc@gmail.com>
parents:
30210
diff
changeset
|
443 return self.index[rev][0] & 0xFFFF |
0986f225c149
revlog: reorder index accessors to match data structure order
Gregory Szorc <gregory.szorc@gmail.com>
parents:
30210
diff
changeset
|
444 |
4980
fc44c8df9d99
revlog: some codingstyle cleanups
Matt Mackall <mpm@selenic.com>
parents:
4979
diff
changeset
|
445 def length(self, rev): |
fc44c8df9d99
revlog: some codingstyle cleanups
Matt Mackall <mpm@selenic.com>
parents:
4979
diff
changeset
|
446 return self.index[rev][1] |
30287
0986f225c149
revlog: reorder index accessors to match data structure order
Gregory Szorc <gregory.szorc@gmail.com>
parents:
30210
diff
changeset
|
447 |
0986f225c149
revlog: reorder index accessors to match data structure order
Gregory Szorc <gregory.szorc@gmail.com>
parents:
30210
diff
changeset
|
448 def rawsize(self, rev): |
0986f225c149
revlog: reorder index accessors to match data structure order
Gregory Szorc <gregory.szorc@gmail.com>
parents:
30210
diff
changeset
|
449 """return the length of the uncompressed text for a given revision""" |
0986f225c149
revlog: reorder index accessors to match data structure order
Gregory Szorc <gregory.szorc@gmail.com>
parents:
30210
diff
changeset
|
450 l = self.index[rev][2] |
0986f225c149
revlog: reorder index accessors to match data structure order
Gregory Szorc <gregory.szorc@gmail.com>
parents:
30210
diff
changeset
|
451 if l >= 0: |
0986f225c149
revlog: reorder index accessors to match data structure order
Gregory Szorc <gregory.szorc@gmail.com>
parents:
30210
diff
changeset
|
452 return l |
0986f225c149
revlog: reorder index accessors to match data structure order
Gregory Szorc <gregory.szorc@gmail.com>
parents:
30210
diff
changeset
|
453 |
31801
d22f29abeb42
revlog: use raw revision for rawsize
Jun Wu <quark@fb.com>
parents:
31756
diff
changeset
|
454 t = self.revision(rev, raw=True) |
30287
0986f225c149
revlog: reorder index accessors to match data structure order
Gregory Szorc <gregory.szorc@gmail.com>
parents:
30210
diff
changeset
|
455 return len(t) |
31856
0ab7f469d386
revlog: make "size" diverge from "rawsize"
Jun Wu <quark@fb.com>
parents:
31804
diff
changeset
|
456 |
0ab7f469d386
revlog: make "size" diverge from "rawsize"
Jun Wu <quark@fb.com>
parents:
31804
diff
changeset
|
457 def size(self, rev): |
0ab7f469d386
revlog: make "size" diverge from "rawsize"
Jun Wu <quark@fb.com>
parents:
31804
diff
changeset
|
458 """length of non-raw text (processed by a "read" flag processor)""" |
0ab7f469d386
revlog: make "size" diverge from "rawsize"
Jun Wu <quark@fb.com>
parents:
31804
diff
changeset
|
459 # fast path: if no "read" flag processor could change the content, |
0ab7f469d386
revlog: make "size" diverge from "rawsize"
Jun Wu <quark@fb.com>
parents:
31804
diff
changeset
|
460 # size is rawsize. note: ELLIPSIS is known to not change the content. |
0ab7f469d386
revlog: make "size" diverge from "rawsize"
Jun Wu <quark@fb.com>
parents:
31804
diff
changeset
|
461 flags = self.flags(rev) |
0ab7f469d386
revlog: make "size" diverge from "rawsize"
Jun Wu <quark@fb.com>
parents:
31804
diff
changeset
|
462 if flags & (REVIDX_KNOWN_FLAGS ^ REVIDX_ELLIPSIS) == 0: |
0ab7f469d386
revlog: make "size" diverge from "rawsize"
Jun Wu <quark@fb.com>
parents:
31804
diff
changeset
|
463 return self.rawsize(rev) |
0ab7f469d386
revlog: make "size" diverge from "rawsize"
Jun Wu <quark@fb.com>
parents:
31804
diff
changeset
|
464 |
0ab7f469d386
revlog: make "size" diverge from "rawsize"
Jun Wu <quark@fb.com>
parents:
31804
diff
changeset
|
465 return len(self.revision(rev, raw=False)) |
30287
0986f225c149
revlog: reorder index accessors to match data structure order
Gregory Szorc <gregory.szorc@gmail.com>
parents:
30210
diff
changeset
|
466 |
14252
19067884c5f5
revlog: calculate base revisions iteratively
Sune Foldager <cryo@cyanite.org>
parents:
14251
diff
changeset
|
467 def chainbase(self, rev): |
29830
92ac2baaea86
revlog: use an LRU cache for delta chain bases
Gregory Szorc <gregory.szorc@gmail.com>
parents:
29829
diff
changeset
|
468 base = self._chainbasecache.get(rev) |
92ac2baaea86
revlog: use an LRU cache for delta chain bases
Gregory Szorc <gregory.szorc@gmail.com>
parents:
29829
diff
changeset
|
469 if base is not None: |
92ac2baaea86
revlog: use an LRU cache for delta chain bases
Gregory Szorc <gregory.szorc@gmail.com>
parents:
29829
diff
changeset
|
470 return base |
92ac2baaea86
revlog: use an LRU cache for delta chain bases
Gregory Szorc <gregory.szorc@gmail.com>
parents:
29829
diff
changeset
|
471 |
14252
19067884c5f5
revlog: calculate base revisions iteratively
Sune Foldager <cryo@cyanite.org>
parents:
14251
diff
changeset
|
472 index = self.index |
19067884c5f5
revlog: calculate base revisions iteratively
Sune Foldager <cryo@cyanite.org>
parents:
14251
diff
changeset
|
473 base = index[rev][3] |
19067884c5f5
revlog: calculate base revisions iteratively
Sune Foldager <cryo@cyanite.org>
parents:
14251
diff
changeset
|
474 while base != rev: |
19067884c5f5
revlog: calculate base revisions iteratively
Sune Foldager <cryo@cyanite.org>
parents:
14251
diff
changeset
|
475 rev = base |
19067884c5f5
revlog: calculate base revisions iteratively
Sune Foldager <cryo@cyanite.org>
parents:
14251
diff
changeset
|
476 base = index[rev][3] |
29830
92ac2baaea86
revlog: use an LRU cache for delta chain bases
Gregory Szorc <gregory.szorc@gmail.com>
parents:
29829
diff
changeset
|
477 |
92ac2baaea86
revlog: use an LRU cache for delta chain bases
Gregory Szorc <gregory.szorc@gmail.com>
parents:
29829
diff
changeset
|
478 self._chainbasecache[rev] = base |
14252
19067884c5f5
revlog: calculate base revisions iteratively
Sune Foldager <cryo@cyanite.org>
parents:
14251
diff
changeset
|
479 return base |
30287
0986f225c149
revlog: reorder index accessors to match data structure order
Gregory Szorc <gregory.szorc@gmail.com>
parents:
30210
diff
changeset
|
480 |
0986f225c149
revlog: reorder index accessors to match data structure order
Gregory Szorc <gregory.szorc@gmail.com>
parents:
30210
diff
changeset
|
481 def linkrev(self, rev): |
0986f225c149
revlog: reorder index accessors to match data structure order
Gregory Szorc <gregory.szorc@gmail.com>
parents:
30210
diff
changeset
|
482 return self.index[rev][4] |
0986f225c149
revlog: reorder index accessors to match data structure order
Gregory Szorc <gregory.szorc@gmail.com>
parents:
30210
diff
changeset
|
483 |
0986f225c149
revlog: reorder index accessors to match data structure order
Gregory Szorc <gregory.szorc@gmail.com>
parents:
30210
diff
changeset
|
484 def parentrevs(self, rev): |
32403
a28c76e1cea9
revlog: raise WdirUnsupported when wdirrev is passed
Pulkit Goyal <7895pulkit@gmail.com>
parents:
32393
diff
changeset
|
485 try: |
a28c76e1cea9
revlog: raise WdirUnsupported when wdirrev is passed
Pulkit Goyal <7895pulkit@gmail.com>
parents:
32393
diff
changeset
|
486 return self.index[rev][5:7] |
a28c76e1cea9
revlog: raise WdirUnsupported when wdirrev is passed
Pulkit Goyal <7895pulkit@gmail.com>
parents:
32393
diff
changeset
|
487 except IndexError: |
a28c76e1cea9
revlog: raise WdirUnsupported when wdirrev is passed
Pulkit Goyal <7895pulkit@gmail.com>
parents:
32393
diff
changeset
|
488 if rev == wdirrev: |
a28c76e1cea9
revlog: raise WdirUnsupported when wdirrev is passed
Pulkit Goyal <7895pulkit@gmail.com>
parents:
32393
diff
changeset
|
489 raise error.WdirUnsupported |
a28c76e1cea9
revlog: raise WdirUnsupported when wdirrev is passed
Pulkit Goyal <7895pulkit@gmail.com>
parents:
32393
diff
changeset
|
490 raise |
30287
0986f225c149
revlog: reorder index accessors to match data structure order
Gregory Szorc <gregory.szorc@gmail.com>
parents:
30210
diff
changeset
|
491 |
0986f225c149
revlog: reorder index accessors to match data structure order
Gregory Szorc <gregory.szorc@gmail.com>
parents:
30210
diff
changeset
|
492 def node(self, rev): |
32443
34e9b8b94f66
revlog: raise error.WdirUnsupported from revlog.node() if wdirrev is passed
Pulkit Goyal <7895pulkit@gmail.com>
parents:
32403
diff
changeset
|
493 try: |
34e9b8b94f66
revlog: raise error.WdirUnsupported from revlog.node() if wdirrev is passed
Pulkit Goyal <7895pulkit@gmail.com>
parents:
32403
diff
changeset
|
494 return self.index[rev][7] |
34e9b8b94f66
revlog: raise error.WdirUnsupported from revlog.node() if wdirrev is passed
Pulkit Goyal <7895pulkit@gmail.com>
parents:
32403
diff
changeset
|
495 except IndexError: |
34e9b8b94f66
revlog: raise error.WdirUnsupported from revlog.node() if wdirrev is passed
Pulkit Goyal <7895pulkit@gmail.com>
parents:
32403
diff
changeset
|
496 if rev == wdirrev: |
34e9b8b94f66
revlog: raise error.WdirUnsupported from revlog.node() if wdirrev is passed
Pulkit Goyal <7895pulkit@gmail.com>
parents:
32403
diff
changeset
|
497 raise error.WdirUnsupported |
34e9b8b94f66
revlog: raise error.WdirUnsupported from revlog.node() if wdirrev is passed
Pulkit Goyal <7895pulkit@gmail.com>
parents:
32403
diff
changeset
|
498 raise |
30287
0986f225c149
revlog: reorder index accessors to match data structure order
Gregory Szorc <gregory.szorc@gmail.com>
parents:
30210
diff
changeset
|
499 |
0986f225c149
revlog: reorder index accessors to match data structure order
Gregory Szorc <gregory.szorc@gmail.com>
parents:
30210
diff
changeset
|
500 # Derived from index values. |
0986f225c149
revlog: reorder index accessors to match data structure order
Gregory Szorc <gregory.szorc@gmail.com>
parents:
30210
diff
changeset
|
501 |
0986f225c149
revlog: reorder index accessors to match data structure order
Gregory Szorc <gregory.szorc@gmail.com>
parents:
30210
diff
changeset
|
502 def end(self, rev): |
0986f225c149
revlog: reorder index accessors to match data structure order
Gregory Szorc <gregory.szorc@gmail.com>
parents:
30210
diff
changeset
|
503 return self.start(rev) + self.length(rev) |
0986f225c149
revlog: reorder index accessors to match data structure order
Gregory Szorc <gregory.szorc@gmail.com>
parents:
30210
diff
changeset
|
504 |
0986f225c149
revlog: reorder index accessors to match data structure order
Gregory Szorc <gregory.szorc@gmail.com>
parents:
30210
diff
changeset
|
505 def parents(self, node): |
0986f225c149
revlog: reorder index accessors to match data structure order
Gregory Szorc <gregory.szorc@gmail.com>
parents:
30210
diff
changeset
|
506 i = self.index |
0986f225c149
revlog: reorder index accessors to match data structure order
Gregory Szorc <gregory.szorc@gmail.com>
parents:
30210
diff
changeset
|
507 d = i[self.rev(node)] |
0986f225c149
revlog: reorder index accessors to match data structure order
Gregory Szorc <gregory.szorc@gmail.com>
parents:
30210
diff
changeset
|
508 return i[d[5]][7], i[d[6]][7] # map revisions to nodes inline |
0986f225c149
revlog: reorder index accessors to match data structure order
Gregory Szorc <gregory.szorc@gmail.com>
parents:
30210
diff
changeset
|
509 |
23254
d23834b871ac
debugrevlog: fix computing chain length in debugrevlog -d
Mateusz Kwapich <mitrandir@fb.com>
parents:
22934
diff
changeset
|
510 def chainlen(self, rev): |
23286
40e0067899d4
revlog: compute length of compressed deltas along with chain length
Siddharth Agarwal <sid0@fb.com>
parents:
23285
diff
changeset
|
511 return self._chaininfo(rev)[0] |
23306
f7a42f8e82bd
revlog: cache chain info after calculating it for a rev (issue4452)
Siddharth Agarwal <sid0@fb.com>
parents:
23288
diff
changeset
|
512 |
23286
40e0067899d4
revlog: compute length of compressed deltas along with chain length
Siddharth Agarwal <sid0@fb.com>
parents:
23285
diff
changeset
|
513 def _chaininfo(self, rev): |
23306
f7a42f8e82bd
revlog: cache chain info after calculating it for a rev (issue4452)
Siddharth Agarwal <sid0@fb.com>
parents:
23288
diff
changeset
|
514 chaininfocache = self._chaininfocache |
f7a42f8e82bd
revlog: cache chain info after calculating it for a rev (issue4452)
Siddharth Agarwal <sid0@fb.com>
parents:
23288
diff
changeset
|
515 if rev in chaininfocache: |
f7a42f8e82bd
revlog: cache chain info after calculating it for a rev (issue4452)
Siddharth Agarwal <sid0@fb.com>
parents:
23288
diff
changeset
|
516 return chaininfocache[rev] |
23254
d23834b871ac
debugrevlog: fix computing chain length in debugrevlog -d
Mateusz Kwapich <mitrandir@fb.com>
parents:
22934
diff
changeset
|
517 index = self.index |
d23834b871ac
debugrevlog: fix computing chain length in debugrevlog -d
Mateusz Kwapich <mitrandir@fb.com>
parents:
22934
diff
changeset
|
518 generaldelta = self._generaldelta |
d23834b871ac
debugrevlog: fix computing chain length in debugrevlog -d
Mateusz Kwapich <mitrandir@fb.com>
parents:
22934
diff
changeset
|
519 iterrev = rev |
d23834b871ac
debugrevlog: fix computing chain length in debugrevlog -d
Mateusz Kwapich <mitrandir@fb.com>
parents:
22934
diff
changeset
|
520 e = index[iterrev] |
d23834b871ac
debugrevlog: fix computing chain length in debugrevlog -d
Mateusz Kwapich <mitrandir@fb.com>
parents:
22934
diff
changeset
|
521 clen = 0 |
23286
40e0067899d4
revlog: compute length of compressed deltas along with chain length
Siddharth Agarwal <sid0@fb.com>
parents:
23285
diff
changeset
|
522 compresseddeltalen = 0 |
23254
d23834b871ac
debugrevlog: fix computing chain length in debugrevlog -d
Mateusz Kwapich <mitrandir@fb.com>
parents:
22934
diff
changeset
|
523 while iterrev != e[3]: |
d23834b871ac
debugrevlog: fix computing chain length in debugrevlog -d
Mateusz Kwapich <mitrandir@fb.com>
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|
524 clen += 1 |
23286
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revlog: compute length of compressed deltas along with chain length
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|
525 compresseddeltalen += e[1] |
23254
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|
526 if generaldelta: |
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|
527 iterrev = e[3] |
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|
528 else: |
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|
529 iterrev -= 1 |
23306
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revlog: cache chain info after calculating it for a rev (issue4452)
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diff
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|
530 if iterrev in chaininfocache: |
f7a42f8e82bd
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diff
changeset
|
531 t = chaininfocache[iterrev] |
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|
532 clen += t[0] |
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|
533 compresseddeltalen += t[1] |
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parents:
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|
534 break |
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changeset
|
535 e = index[iterrev] |
23306
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|
536 else: |
f7a42f8e82bd
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diff
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|
537 # Add text length of base since decompressing that also takes |
f7a42f8e82bd
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parents:
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diff
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|
538 # work. For cache hits the length is already included. |
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|
539 compresseddeltalen += e[1] |
f7a42f8e82bd
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|
540 r = (clen, compresseddeltalen) |
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changeset
|
541 chaininfocache[rev] = r |
f7a42f8e82bd
revlog: cache chain info after calculating it for a rev (issue4452)
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parents:
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|
542 return r |
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parents:
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changeset
|
543 |
27468
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Gregory Szorc <gregory.szorc@gmail.com>
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|
544 def _deltachain(self, rev, stoprev=None): |
93ac15f03331
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545 """Obtain the delta chain for a revision. |
93ac15f03331
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546 |
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|
547 ``stoprev`` specifies a revision to stop at. If not specified, we |
93ac15f03331
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|
548 stop at the base of the chain. |
93ac15f03331
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|
549 |
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|
550 Returns a 2-tuple of (chain, stopped) where ``chain`` is a list of |
93ac15f03331
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|
551 revs in ascending order and ``stopped`` is a bool indicating whether |
93ac15f03331
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552 ``stoprev`` was hit. |
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|
553 """ |
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|
554 chain = [] |
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555 |
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|
556 # Alias to prevent attribute lookup in tight loop. |
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|
557 index = self.index |
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|
558 generaldelta = self._generaldelta |
93ac15f03331
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|
559 |
93ac15f03331
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|
560 iterrev = rev |
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|
561 e = index[iterrev] |
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parents:
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562 while iterrev != e[3] and iterrev != stoprev: |
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|
563 chain.append(iterrev) |
93ac15f03331
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|
564 if generaldelta: |
93ac15f03331
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|
565 iterrev = e[3] |
93ac15f03331
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|
566 else: |
93ac15f03331
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|
567 iterrev -= 1 |
93ac15f03331
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|
568 e = index[iterrev] |
93ac15f03331
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|
569 |
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|
570 if iterrev == stoprev: |
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|
571 stopped = True |
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572 else: |
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|
573 chain.append(iterrev) |
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|
574 stopped = False |
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|
575 |
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|
576 chain.reverse() |
93ac15f03331
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|
577 return chain, stopped |
93ac15f03331
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diff
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|
578 |
18081
f88c60e740a1
revlog.ancestors: add support for including revs
Siddharth Agarwal <sid0@fb.com>
parents:
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diff
changeset
|
579 def ancestors(self, revs, stoprev=0, inclusive=False): |
10047
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Greg Ward <greg-hg@gerg.ca>
parents:
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diff
changeset
|
580 """Generate the ancestors of 'revs' in reverse topological order. |
16868
eb88ed4269c5
revlog: add optional stoprev arg to revlog.ancestors()
Joshua Redstone <joshua.redstone@fb.com>
parents:
16867
diff
changeset
|
581 Does not generate revs lower than stoprev. |
10047
27267b1f68b4
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|
582 |
18090
9abc55ef85b5
revlog: move ancestor generation out to a new class
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parents:
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diff
changeset
|
583 See the documentation for ancestor.lazyancestors for more details.""" |
18081
f88c60e740a1
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diff
changeset
|
584 |
23328
3a7d9c0c57a5
ancestor.lazyancestors: take parentrevs function rather than changelog
Siddharth Agarwal <sid0@fb.com>
parents:
23306
diff
changeset
|
585 return ancestor.lazyancestors(self.parentrevs, revs, stoprev=stoprev, |
18090
9abc55ef85b5
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parents:
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diff
changeset
|
586 inclusive=inclusive) |
6872
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Add ancestors and descendants to revlog
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parents:
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diff
changeset
|
587 |
16867
1093ad1e8903
revlog: descendants(*revs) becomes descendants(revs) (API)
Bryan O'Sullivan <bryano@fb.com>
parents:
16866
diff
changeset
|
588 def descendants(self, revs): |
10047
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changeset
|
589 """Generate the descendants of 'revs' in revision order. |
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diff
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|
590 |
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parents:
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diff
changeset
|
591 Yield a sequence of revision numbers starting with a child of |
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parents:
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diff
changeset
|
592 some rev in revs, i.e., each revision is *not* considered a |
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diff
changeset
|
593 descendant of itself. Results are ordered by revision number (a |
27267b1f68b4
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diff
changeset
|
594 topological sort).""" |
12950
2405b4a5964a
revlog: fix descendants() if nullrev is in revs
Nicolas Dumazet <nicdumz.commits@gmail.com>
parents:
12949
diff
changeset
|
595 first = min(revs) |
2405b4a5964a
revlog: fix descendants() if nullrev is in revs
Nicolas Dumazet <nicdumz.commits@gmail.com>
parents:
12949
diff
changeset
|
596 if first == nullrev: |
2405b4a5964a
revlog: fix descendants() if nullrev is in revs
Nicolas Dumazet <nicdumz.commits@gmail.com>
parents:
12949
diff
changeset
|
597 for i in self: |
2405b4a5964a
revlog: fix descendants() if nullrev is in revs
Nicolas Dumazet <nicdumz.commits@gmail.com>
parents:
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diff
changeset
|
598 yield i |
2405b4a5964a
revlog: fix descendants() if nullrev is in revs
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parents:
12949
diff
changeset
|
599 return |
2405b4a5964a
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Nicolas Dumazet <nicdumz.commits@gmail.com>
parents:
12949
diff
changeset
|
600 |
8150
bbc24c0753a0
util: use built-in set and frozenset
Martin Geisler <mg@lazybytes.net>
parents:
8073
diff
changeset
|
601 seen = set(revs) |
17672
474047947b8f
clfilter: make the revlog class responsible of all its iteration
Pierre-Yves David <pierre-yves.david@logilab.fr>
parents:
17537
diff
changeset
|
602 for i in self.revs(start=first + 1): |
6872
c7cc40fd74f6
Add ancestors and descendants to revlog
Stefano Tortarolo <stefano.tortarolo@gmail.com>
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diff
changeset
|
603 for x in self.parentrevs(i): |
c7cc40fd74f6
Add ancestors and descendants to revlog
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diff
changeset
|
604 if x != nullrev and x in seen: |
c7cc40fd74f6
Add ancestors and descendants to revlog
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diff
changeset
|
605 seen.add(i) |
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Add ancestors and descendants to revlog
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diff
changeset
|
606 yield i |
c7cc40fd74f6
Add ancestors and descendants to revlog
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diff
changeset
|
607 break |
c7cc40fd74f6
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Stefano Tortarolo <stefano.tortarolo@gmail.com>
parents:
6750
diff
changeset
|
608 |
13741
b51bf961b3cb
wireproto: add getbundle() function
Peter Arrenbrecht <peter.arrenbrecht@gmail.com>
parents:
13400
diff
changeset
|
609 def findcommonmissing(self, common=None, heads=None): |
b51bf961b3cb
wireproto: add getbundle() function
Peter Arrenbrecht <peter.arrenbrecht@gmail.com>
parents:
13400
diff
changeset
|
610 """Return a tuple of the ancestors of common and the ancestors of heads |
15835
fa15869bf95c
revlog: improve docstring for findcommonmissing
Pierre-Yves David <pierre-yves.david@ens-lyon.org>
parents:
15827
diff
changeset
|
611 that are not ancestors of common. In revset terminology, we return the |
fa15869bf95c
revlog: improve docstring for findcommonmissing
Pierre-Yves David <pierre-yves.david@ens-lyon.org>
parents:
15827
diff
changeset
|
612 tuple: |
10047
27267b1f68b4
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Greg Ward <greg-hg@gerg.ca>
parents:
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diff
changeset
|
613 |
15835
fa15869bf95c
revlog: improve docstring for findcommonmissing
Pierre-Yves David <pierre-yves.david@ens-lyon.org>
parents:
15827
diff
changeset
|
614 ::common, (::heads) - (::common) |
7233
9f0e52e1df77
fix pull racing with push/commit (issue1320)
Benoit Boissinot <benoit.boissinot@ens-lyon.org>
parents:
7109
diff
changeset
|
615 |
10047
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parents:
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diff
changeset
|
616 The list is sorted by revision number, meaning it is |
27267b1f68b4
revlog: rewrite several method docstrings
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parents:
9679
diff
changeset
|
617 topologically sorted. |
27267b1f68b4
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parents:
9679
diff
changeset
|
618 |
27267b1f68b4
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parents:
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diff
changeset
|
619 'heads' and 'common' are both lists of node IDs. If heads is |
27267b1f68b4
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parents:
9679
diff
changeset
|
620 not supplied, uses all of the revlog's heads. If common is not |
27267b1f68b4
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Greg Ward <greg-hg@gerg.ca>
parents:
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diff
changeset
|
621 supplied, uses nullid.""" |
7233
9f0e52e1df77
fix pull racing with push/commit (issue1320)
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parents:
7109
diff
changeset
|
622 if common is None: |
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diff
changeset
|
623 common = [nullid] |
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changeset
|
624 if heads is None: |
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diff
changeset
|
625 heads = self.heads() |
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diff
changeset
|
626 |
9f0e52e1df77
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7109
diff
changeset
|
627 common = [self.rev(n) for n in common] |
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diff
changeset
|
628 heads = [self.rev(n) for n in heads] |
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changeset
|
629 |
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diff
changeset
|
630 # we want the ancestors, but inclusive |
20073
eeba4eaf0716
revlog: return lazy set from findcommonmissing
Durham Goode <durham@fb.com>
parents:
19776
diff
changeset
|
631 class lazyset(object): |
eeba4eaf0716
revlog: return lazy set from findcommonmissing
Durham Goode <durham@fb.com>
parents:
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diff
changeset
|
632 def __init__(self, lazyvalues): |
eeba4eaf0716
revlog: return lazy set from findcommonmissing
Durham Goode <durham@fb.com>
parents:
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diff
changeset
|
633 self.addedvalues = set() |
eeba4eaf0716
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Durham Goode <durham@fb.com>
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diff
changeset
|
634 self.lazyvalues = lazyvalues |
eeba4eaf0716
revlog: return lazy set from findcommonmissing
Durham Goode <durham@fb.com>
parents:
19776
diff
changeset
|
635 |
eeba4eaf0716
revlog: return lazy set from findcommonmissing
Durham Goode <durham@fb.com>
parents:
19776
diff
changeset
|
636 def __contains__(self, value): |
eeba4eaf0716
revlog: return lazy set from findcommonmissing
Durham Goode <durham@fb.com>
parents:
19776
diff
changeset
|
637 return value in self.addedvalues or value in self.lazyvalues |
eeba4eaf0716
revlog: return lazy set from findcommonmissing
Durham Goode <durham@fb.com>
parents:
19776
diff
changeset
|
638 |
eeba4eaf0716
revlog: return lazy set from findcommonmissing
Durham Goode <durham@fb.com>
parents:
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diff
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639 def __iter__(self): |
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640 added = self.addedvalues |
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641 for r in added: |
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642 yield r |
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|
643 for r in self.lazyvalues: |
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644 if not r in added: |
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|
645 yield r |
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|
646 |
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647 def add(self, value): |
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|
648 self.addedvalues.add(value) |
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649 |
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650 def update(self, values): |
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|
651 self.addedvalues.update(values) |
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|
652 |
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|
653 has = lazyset(self.ancestors(common)) |
8152
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654 has.add(nullrev) |
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|
655 has.update(common) |
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|
656 |
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657 # take all ancestors from heads that aren't in has |
8453
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658 missing = set() |
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659 visit = collections.deque(r for r in heads if r not in has) |
7233
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660 while visit: |
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661 r = visit.popleft() |
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662 if r in missing: |
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663 continue |
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664 else: |
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665 missing.add(r) |
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666 for p in self.parentrevs(r): |
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667 if p not in has: |
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668 visit.append(p) |
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669 missing = list(missing) |
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670 missing.sort() |
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Augie Fackler <augie@google.com>
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671 return has, [self.node(miss) for miss in missing] |
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672 |
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673 def incrementalmissingrevs(self, common=None): |
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|
674 """Return an object that can be used to incrementally compute the |
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|
675 revision numbers of the ancestors of arbitrary sets that are not |
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676 ancestors of common. This is an ancestor.incrementalmissingancestors |
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677 object. |
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|
678 |
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|
679 'common' is a list of revision numbers. If common is not supplied, uses |
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|
680 nullrev. |
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681 """ |
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682 if common is None: |
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683 common = [nullrev] |
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684 |
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|
685 return ancestor.incrementalmissingancestors(self.parentrevs, common) |
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|
686 |
17972
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|
687 def findmissingrevs(self, common=None, heads=None): |
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688 """Return the revision numbers of the ancestors of heads that |
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|
689 are not ancestors of common. |
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|
690 |
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|
691 More specifically, return a list of revision numbers corresponding to |
7ef00d09ef35
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|
692 nodes N such that every N satisfies the following constraints: |
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|
693 |
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|
694 1. N is an ancestor of some node in 'heads' |
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695 2. N is not an ancestor of any node in 'common' |
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|
696 |
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|
697 The list is sorted by revision number, meaning it is |
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|
698 topologically sorted. |
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|
699 |
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diff
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|
700 'heads' and 'common' are both lists of revision numbers. If heads is |
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|
701 not supplied, uses all of the revlog's heads. If common is not |
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|
702 supplied, uses nullid.""" |
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|
703 if common is None: |
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|
704 common = [nullrev] |
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|
705 if heads is None: |
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|
706 heads = self.headrevs() |
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|
707 |
23338
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Siddharth Agarwal <sid0@fb.com>
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|
708 inc = self.incrementalmissingrevs(common=common) |
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parents:
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|
709 return inc.missingancestors(heads) |
17972
7ef00d09ef35
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diff
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|
710 |
13741
b51bf961b3cb
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parents:
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diff
changeset
|
711 def findmissing(self, common=None, heads=None): |
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wireproto: add getbundle() function
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diff
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|
712 """Return the ancestors of heads that are not ancestors of common. |
b51bf961b3cb
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diff
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|
713 |
b51bf961b3cb
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13400
diff
changeset
|
714 More specifically, return a list of nodes N such that every N |
b51bf961b3cb
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parents:
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diff
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|
715 satisfies the following constraints: |
b51bf961b3cb
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parents:
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diff
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|
716 |
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parents:
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diff
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|
717 1. N is an ancestor of some node in 'heads' |
b51bf961b3cb
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Peter Arrenbrecht <peter.arrenbrecht@gmail.com>
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|
718 2. N is not an ancestor of any node in 'common' |
b51bf961b3cb
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diff
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|
719 |
b51bf961b3cb
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parents:
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diff
changeset
|
720 The list is sorted by revision number, meaning it is |
b51bf961b3cb
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parents:
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diff
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|
721 topologically sorted. |
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parents:
13400
diff
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|
722 |
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parents:
13400
diff
changeset
|
723 'heads' and 'common' are both lists of node IDs. If heads is |
b51bf961b3cb
wireproto: add getbundle() function
Peter Arrenbrecht <peter.arrenbrecht@gmail.com>
parents:
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diff
changeset
|
724 not supplied, uses all of the revlog's heads. If common is not |
b51bf961b3cb
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parents:
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diff
changeset
|
725 supplied, uses nullid.""" |
17971
e1b9a78a7aed
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parents:
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diff
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|
726 if common is None: |
e1b9a78a7aed
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Siddharth Agarwal <sid0@fb.com>
parents:
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diff
changeset
|
727 common = [nullid] |
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diff
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|
728 if heads is None: |
e1b9a78a7aed
revlog: switch findmissing to use ancestor.missingancestors
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parents:
17951
diff
changeset
|
729 heads = self.heads() |
e1b9a78a7aed
revlog: switch findmissing to use ancestor.missingancestors
Siddharth Agarwal <sid0@fb.com>
parents:
17951
diff
changeset
|
730 |
e1b9a78a7aed
revlog: switch findmissing to use ancestor.missingancestors
Siddharth Agarwal <sid0@fb.com>
parents:
17951
diff
changeset
|
731 common = [self.rev(n) for n in common] |
e1b9a78a7aed
revlog: switch findmissing to use ancestor.missingancestors
Siddharth Agarwal <sid0@fb.com>
parents:
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diff
changeset
|
732 heads = [self.rev(n) for n in heads] |
e1b9a78a7aed
revlog: switch findmissing to use ancestor.missingancestors
Siddharth Agarwal <sid0@fb.com>
parents:
17951
diff
changeset
|
733 |
23338
d8f5b2f50f41
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parents:
23337
diff
changeset
|
734 inc = self.incrementalmissingrevs(common=common) |
d8f5b2f50f41
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Siddharth Agarwal <sid0@fb.com>
parents:
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diff
changeset
|
735 return [self.node(r) for r in inc.missingancestors(heads)] |
7233
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parents:
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|
736 |
1457
518da3c3b6ce
This implements the nodesbetween method, and it removes the newer method
Eric Hopper <hopper@omnifarious.org>
parents:
1351
diff
changeset
|
737 def nodesbetween(self, roots=None, heads=None): |
10047
27267b1f68b4
revlog: rewrite several method docstrings
Greg Ward <greg-hg@gerg.ca>
parents:
9679
diff
changeset
|
738 """Return a topological path from 'roots' to 'heads'. |
27267b1f68b4
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Greg Ward <greg-hg@gerg.ca>
parents:
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diff
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|
739 |
27267b1f68b4
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parents:
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diff
changeset
|
740 Return a tuple (nodes, outroots, outheads) where 'nodes' is a |
27267b1f68b4
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Greg Ward <greg-hg@gerg.ca>
parents:
9679
diff
changeset
|
741 topologically sorted list of all nodes N that satisfy both of |
27267b1f68b4
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Greg Ward <greg-hg@gerg.ca>
parents:
9679
diff
changeset
|
742 these constraints: |
27267b1f68b4
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Greg Ward <greg-hg@gerg.ca>
parents:
9679
diff
changeset
|
743 |
27267b1f68b4
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Greg Ward <greg-hg@gerg.ca>
parents:
9679
diff
changeset
|
744 1. N is a descendant of some node in 'roots' |
27267b1f68b4
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Greg Ward <greg-hg@gerg.ca>
parents:
9679
diff
changeset
|
745 2. N is an ancestor of some node in 'heads' |
1457
518da3c3b6ce
This implements the nodesbetween method, and it removes the newer method
Eric Hopper <hopper@omnifarious.org>
parents:
1351
diff
changeset
|
746 |
10047
27267b1f68b4
revlog: rewrite several method docstrings
Greg Ward <greg-hg@gerg.ca>
parents:
9679
diff
changeset
|
747 Every node is considered to be both a descendant and an ancestor |
27267b1f68b4
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Greg Ward <greg-hg@gerg.ca>
parents:
9679
diff
changeset
|
748 of itself, so every reachable node in 'roots' and 'heads' will be |
27267b1f68b4
revlog: rewrite several method docstrings
Greg Ward <greg-hg@gerg.ca>
parents:
9679
diff
changeset
|
749 included in 'nodes'. |
1457
518da3c3b6ce
This implements the nodesbetween method, and it removes the newer method
Eric Hopper <hopper@omnifarious.org>
parents:
1351
diff
changeset
|
750 |
10047
27267b1f68b4
revlog: rewrite several method docstrings
Greg Ward <greg-hg@gerg.ca>
parents:
9679
diff
changeset
|
751 'outroots' is the list of reachable nodes in 'roots', i.e., the |
27267b1f68b4
revlog: rewrite several method docstrings
Greg Ward <greg-hg@gerg.ca>
parents:
9679
diff
changeset
|
752 subset of 'roots' that is returned in 'nodes'. Likewise, |
27267b1f68b4
revlog: rewrite several method docstrings
Greg Ward <greg-hg@gerg.ca>
parents:
9679
diff
changeset
|
753 'outheads' is the subset of 'heads' that is also in 'nodes'. |
27267b1f68b4
revlog: rewrite several method docstrings
Greg Ward <greg-hg@gerg.ca>
parents:
9679
diff
changeset
|
754 |
27267b1f68b4
revlog: rewrite several method docstrings
Greg Ward <greg-hg@gerg.ca>
parents:
9679
diff
changeset
|
755 'roots' and 'heads' are both lists of node IDs. If 'roots' is |
27267b1f68b4
revlog: rewrite several method docstrings
Greg Ward <greg-hg@gerg.ca>
parents:
9679
diff
changeset
|
756 unspecified, uses nullid as the only root. If 'heads' is |
27267b1f68b4
revlog: rewrite several method docstrings
Greg Ward <greg-hg@gerg.ca>
parents:
9679
diff
changeset
|
757 unspecified, uses list of all of the revlog's heads.""" |
1463
26e73acc0cdf
Fix to handle case of empty list for roots or heads in nodesbetween.
Eric Hopper <hopper@omnifarious.org>
parents:
1459
diff
changeset
|
758 nonodes = ([], [], []) |
1457
518da3c3b6ce
This implements the nodesbetween method, and it removes the newer method
Eric Hopper <hopper@omnifarious.org>
parents:
1351
diff
changeset
|
759 if roots is not None: |
518da3c3b6ce
This implements the nodesbetween method, and it removes the newer method
Eric Hopper <hopper@omnifarious.org>
parents:
1351
diff
changeset
|
760 roots = list(roots) |
1463
26e73acc0cdf
Fix to handle case of empty list for roots or heads in nodesbetween.
Eric Hopper <hopper@omnifarious.org>
parents:
1459
diff
changeset
|
761 if not roots: |
26e73acc0cdf
Fix to handle case of empty list for roots or heads in nodesbetween.
Eric Hopper <hopper@omnifarious.org>
parents:
1459
diff
changeset
|
762 return nonodes |
1457
518da3c3b6ce
This implements the nodesbetween method, and it removes the newer method
Eric Hopper <hopper@omnifarious.org>
parents:
1351
diff
changeset
|
763 lowestrev = min([self.rev(n) for n in roots]) |
518da3c3b6ce
This implements the nodesbetween method, and it removes the newer method
Eric Hopper <hopper@omnifarious.org>
parents:
1351
diff
changeset
|
764 else: |
14549
48ec0763afbb
check-code: catch misspellings of descendant
Matt Mackall <mpm@selenic.com>
parents:
14523
diff
changeset
|
765 roots = [nullid] # Everybody's a descendant of nullid |
3578
3b4e00cba57a
Define and use nullrev (revision of nullid) instead of -1.
Thomas Arendsen Hein <thomas@intevation.de>
parents:
3508
diff
changeset
|
766 lowestrev = nullrev |
3b4e00cba57a
Define and use nullrev (revision of nullid) instead of -1.
Thomas Arendsen Hein <thomas@intevation.de>
parents:
3508
diff
changeset
|
767 if (lowestrev == nullrev) and (heads is None): |
1457
518da3c3b6ce
This implements the nodesbetween method, and it removes the newer method
Eric Hopper <hopper@omnifarious.org>
parents:
1351
diff
changeset
|
768 # We want _all_ the nodes! |
6750
fb42030d79d6
add __len__ and __iter__ methods to repo and revlog
Matt Mackall <mpm@selenic.com>
parents:
6703
diff
changeset
|
769 return ([self.node(r) for r in self], [nullid], list(self.heads())) |
1457
518da3c3b6ce
This implements the nodesbetween method, and it removes the newer method
Eric Hopper <hopper@omnifarious.org>
parents:
1351
diff
changeset
|
770 if heads is None: |
518da3c3b6ce
This implements the nodesbetween method, and it removes the newer method
Eric Hopper <hopper@omnifarious.org>
parents:
1351
diff
changeset
|
771 # All nodes are ancestors, so the latest ancestor is the last |
518da3c3b6ce
This implements the nodesbetween method, and it removes the newer method
Eric Hopper <hopper@omnifarious.org>
parents:
1351
diff
changeset
|
772 # node. |
6750
fb42030d79d6
add __len__ and __iter__ methods to repo and revlog
Matt Mackall <mpm@selenic.com>
parents:
6703
diff
changeset
|
773 highestrev = len(self) - 1 |
1457
518da3c3b6ce
This implements the nodesbetween method, and it removes the newer method
Eric Hopper <hopper@omnifarious.org>
parents:
1351
diff
changeset
|
774 # Set ancestors to None to signal that every node is an ancestor. |
518da3c3b6ce
This implements the nodesbetween method, and it removes the newer method
Eric Hopper <hopper@omnifarious.org>
parents:
1351
diff
changeset
|
775 ancestors = None |
518da3c3b6ce
This implements the nodesbetween method, and it removes the newer method
Eric Hopper <hopper@omnifarious.org>
parents:
1351
diff
changeset
|
776 # Set heads to an empty dictionary for later discovery of heads |
518da3c3b6ce
This implements the nodesbetween method, and it removes the newer method
Eric Hopper <hopper@omnifarious.org>
parents:
1351
diff
changeset
|
777 heads = {} |
518da3c3b6ce
This implements the nodesbetween method, and it removes the newer method
Eric Hopper <hopper@omnifarious.org>
parents:
1351
diff
changeset
|
778 else: |
1463
26e73acc0cdf
Fix to handle case of empty list for roots or heads in nodesbetween.
Eric Hopper <hopper@omnifarious.org>
parents:
1459
diff
changeset
|
779 heads = list(heads) |
26e73acc0cdf
Fix to handle case of empty list for roots or heads in nodesbetween.
Eric Hopper <hopper@omnifarious.org>
parents:
1459
diff
changeset
|
780 if not heads: |
26e73acc0cdf
Fix to handle case of empty list for roots or heads in nodesbetween.
Eric Hopper <hopper@omnifarious.org>
parents:
1459
diff
changeset
|
781 return nonodes |
8464
7af92e70bb25
revlog: use set instead of dict
Benoit Boissinot <benoit.boissinot@ens-lyon.org>
parents:
8453
diff
changeset
|
782 ancestors = set() |
1457
518da3c3b6ce
This implements the nodesbetween method, and it removes the newer method
Eric Hopper <hopper@omnifarious.org>
parents:
1351
diff
changeset
|
783 # Turn heads into a dictionary so we can remove 'fake' heads. |
518da3c3b6ce
This implements the nodesbetween method, and it removes the newer method
Eric Hopper <hopper@omnifarious.org>
parents:
1351
diff
changeset
|
784 # Also, later we will be using it to filter out the heads we can't |
518da3c3b6ce
This implements the nodesbetween method, and it removes the newer method
Eric Hopper <hopper@omnifarious.org>
parents:
1351
diff
changeset
|
785 # find from roots. |
14219
c33427080671
revlog: use real Booleans instead of 0/1 in nodesbetween
Martin Geisler <mg@aragost.com>
parents:
14208
diff
changeset
|
786 heads = dict.fromkeys(heads, False) |
3360
ef8307585b41
nodesbetween: fix a bug with duplicate heads
Benoit Boissinot <benoit.boissinot@ens-lyon.org>
parents:
3335
diff
changeset
|
787 # Start at the top and keep marking parents until we're done. |
8163
62d7287fe6b0
rebase, revlog: use set(x) instead of set(x.keys())
Martin Geisler <mg@lazybytes.net>
parents:
8153
diff
changeset
|
788 nodestotag = set(heads) |
1457
518da3c3b6ce
This implements the nodesbetween method, and it removes the newer method
Eric Hopper <hopper@omnifarious.org>
parents:
1351
diff
changeset
|
789 # Remember where the top was so we can use it as a limit later. |
518da3c3b6ce
This implements the nodesbetween method, and it removes the newer method
Eric Hopper <hopper@omnifarious.org>
parents:
1351
diff
changeset
|
790 highestrev = max([self.rev(n) for n in nodestotag]) |
518da3c3b6ce
This implements the nodesbetween method, and it removes the newer method
Eric Hopper <hopper@omnifarious.org>
parents:
1351
diff
changeset
|
791 while nodestotag: |
518da3c3b6ce
This implements the nodesbetween method, and it removes the newer method
Eric Hopper <hopper@omnifarious.org>
parents:
1351
diff
changeset
|
792 # grab a node to tag |
518da3c3b6ce
This implements the nodesbetween method, and it removes the newer method
Eric Hopper <hopper@omnifarious.org>
parents:
1351
diff
changeset
|
793 n = nodestotag.pop() |
518da3c3b6ce
This implements the nodesbetween method, and it removes the newer method
Eric Hopper <hopper@omnifarious.org>
parents:
1351
diff
changeset
|
794 # Never tag nullid |
518da3c3b6ce
This implements the nodesbetween method, and it removes the newer method
Eric Hopper <hopper@omnifarious.org>
parents:
1351
diff
changeset
|
795 if n == nullid: |
518da3c3b6ce
This implements the nodesbetween method, and it removes the newer method
Eric Hopper <hopper@omnifarious.org>
parents:
1351
diff
changeset
|
796 continue |
518da3c3b6ce
This implements the nodesbetween method, and it removes the newer method
Eric Hopper <hopper@omnifarious.org>
parents:
1351
diff
changeset
|
797 # A node's revision number represents its place in a |
518da3c3b6ce
This implements the nodesbetween method, and it removes the newer method
Eric Hopper <hopper@omnifarious.org>
parents:
1351
diff
changeset
|
798 # topologically sorted list of nodes. |
518da3c3b6ce
This implements the nodesbetween method, and it removes the newer method
Eric Hopper <hopper@omnifarious.org>
parents:
1351
diff
changeset
|
799 r = self.rev(n) |
518da3c3b6ce
This implements the nodesbetween method, and it removes the newer method
Eric Hopper <hopper@omnifarious.org>
parents:
1351
diff
changeset
|
800 if r >= lowestrev: |
518da3c3b6ce
This implements the nodesbetween method, and it removes the newer method
Eric Hopper <hopper@omnifarious.org>
parents:
1351
diff
changeset
|
801 if n not in ancestors: |
14549
48ec0763afbb
check-code: catch misspellings of descendant
Matt Mackall <mpm@selenic.com>
parents:
14523
diff
changeset
|
802 # If we are possibly a descendant of one of the roots |
1457
518da3c3b6ce
This implements the nodesbetween method, and it removes the newer method
Eric Hopper <hopper@omnifarious.org>
parents:
1351
diff
changeset
|
803 # and we haven't already been marked as an ancestor |
8464
7af92e70bb25
revlog: use set instead of dict
Benoit Boissinot <benoit.boissinot@ens-lyon.org>
parents:
8453
diff
changeset
|
804 ancestors.add(n) # Mark as ancestor |
1457
518da3c3b6ce
This implements the nodesbetween method, and it removes the newer method
Eric Hopper <hopper@omnifarious.org>
parents:
1351
diff
changeset
|
805 # Add non-nullid parents to list of nodes to tag. |
8153
616f20e1004a
revlog: let nodestotag be a set instead of a list
Martin Geisler <mg@lazybytes.net>
parents:
8152
diff
changeset
|
806 nodestotag.update([p for p in self.parents(n) if |
1457
518da3c3b6ce
This implements the nodesbetween method, and it removes the newer method
Eric Hopper <hopper@omnifarious.org>
parents:
1351
diff
changeset
|
807 p != nullid]) |
518da3c3b6ce
This implements the nodesbetween method, and it removes the newer method
Eric Hopper <hopper@omnifarious.org>
parents:
1351
diff
changeset
|
808 elif n in heads: # We've seen it before, is it a fake head? |
518da3c3b6ce
This implements the nodesbetween method, and it removes the newer method
Eric Hopper <hopper@omnifarious.org>
parents:
1351
diff
changeset
|
809 # So it is, real heads should not be the ancestors of |
518da3c3b6ce
This implements the nodesbetween method, and it removes the newer method
Eric Hopper <hopper@omnifarious.org>
parents:
1351
diff
changeset
|
810 # any other heads. |
518da3c3b6ce
This implements the nodesbetween method, and it removes the newer method
Eric Hopper <hopper@omnifarious.org>
parents:
1351
diff
changeset
|
811 heads.pop(n) |
1459
106fdec8e1fb
Fix small bug in nodesbetween if heads is [nullid].
Eric Hopper <hopper@omnifarious.org>
parents:
1458
diff
changeset
|
812 if not ancestors: |
1463
26e73acc0cdf
Fix to handle case of empty list for roots or heads in nodesbetween.
Eric Hopper <hopper@omnifarious.org>
parents:
1459
diff
changeset
|
813 return nonodes |
1457
518da3c3b6ce
This implements the nodesbetween method, and it removes the newer method
Eric Hopper <hopper@omnifarious.org>
parents:
1351
diff
changeset
|
814 # Now that we have our set of ancestors, we want to remove any |
518da3c3b6ce
This implements the nodesbetween method, and it removes the newer method
Eric Hopper <hopper@omnifarious.org>
parents:
1351
diff
changeset
|
815 # roots that are not ancestors. |
518da3c3b6ce
This implements the nodesbetween method, and it removes the newer method
Eric Hopper <hopper@omnifarious.org>
parents:
1351
diff
changeset
|
816 |
518da3c3b6ce
This implements the nodesbetween method, and it removes the newer method
Eric Hopper <hopper@omnifarious.org>
parents:
1351
diff
changeset
|
817 # If one of the roots was nullid, everything is included anyway. |
3578
3b4e00cba57a
Define and use nullrev (revision of nullid) instead of -1.
Thomas Arendsen Hein <thomas@intevation.de>
parents:
3508
diff
changeset
|
818 if lowestrev > nullrev: |
1457
518da3c3b6ce
This implements the nodesbetween method, and it removes the newer method
Eric Hopper <hopper@omnifarious.org>
parents:
1351
diff
changeset
|
819 # But, since we weren't, let's recompute the lowest rev to not |
518da3c3b6ce
This implements the nodesbetween method, and it removes the newer method
Eric Hopper <hopper@omnifarious.org>
parents:
1351
diff
changeset
|
820 # include roots that aren't ancestors. |
518da3c3b6ce
This implements the nodesbetween method, and it removes the newer method
Eric Hopper <hopper@omnifarious.org>
parents:
1351
diff
changeset
|
821 |
518da3c3b6ce
This implements the nodesbetween method, and it removes the newer method
Eric Hopper <hopper@omnifarious.org>
parents:
1351
diff
changeset
|
822 # Filter out roots that aren't ancestors of heads |
30391
2ded17b64f09
revlog: avoid shadowing several variables using list comprehensions
Augie Fackler <augie@google.com>
parents:
30289
diff
changeset
|
823 roots = [root for root in roots if root in ancestors] |
1457
518da3c3b6ce
This implements the nodesbetween method, and it removes the newer method
Eric Hopper <hopper@omnifarious.org>
parents:
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diff
changeset
|
824 # Recompute the lowest revision |
518da3c3b6ce
This implements the nodesbetween method, and it removes the newer method
Eric Hopper <hopper@omnifarious.org>
parents:
1351
diff
changeset
|
825 if roots: |
30391
2ded17b64f09
revlog: avoid shadowing several variables using list comprehensions
Augie Fackler <augie@google.com>
parents:
30289
diff
changeset
|
826 lowestrev = min([self.rev(root) for root in roots]) |
1457
518da3c3b6ce
This implements the nodesbetween method, and it removes the newer method
Eric Hopper <hopper@omnifarious.org>
parents:
1351
diff
changeset
|
827 else: |
518da3c3b6ce
This implements the nodesbetween method, and it removes the newer method
Eric Hopper <hopper@omnifarious.org>
parents:
1351
diff
changeset
|
828 # No more roots? Return empty list |
1463
26e73acc0cdf
Fix to handle case of empty list for roots or heads in nodesbetween.
Eric Hopper <hopper@omnifarious.org>
parents:
1459
diff
changeset
|
829 return nonodes |
1457
518da3c3b6ce
This implements the nodesbetween method, and it removes the newer method
Eric Hopper <hopper@omnifarious.org>
parents:
1351
diff
changeset
|
830 else: |
518da3c3b6ce
This implements the nodesbetween method, and it removes the newer method
Eric Hopper <hopper@omnifarious.org>
parents:
1351
diff
changeset
|
831 # We are descending from nullid, and don't need to care about |
518da3c3b6ce
This implements the nodesbetween method, and it removes the newer method
Eric Hopper <hopper@omnifarious.org>
parents:
1351
diff
changeset
|
832 # any other roots. |
3578
3b4e00cba57a
Define and use nullrev (revision of nullid) instead of -1.
Thomas Arendsen Hein <thomas@intevation.de>
parents:
3508
diff
changeset
|
833 lowestrev = nullrev |
1457
518da3c3b6ce
This implements the nodesbetween method, and it removes the newer method
Eric Hopper <hopper@omnifarious.org>
parents:
1351
diff
changeset
|
834 roots = [nullid] |
8152
08e1baf924ca
replace set-like dictionaries with real sets
Martin Geisler <mg@lazybytes.net>
parents:
8150
diff
changeset
|
835 # Transform our roots list into a set. |
14549
48ec0763afbb
check-code: catch misspellings of descendant
Matt Mackall <mpm@selenic.com>
parents:
14523
diff
changeset
|
836 descendants = set(roots) |
1457
518da3c3b6ce
This implements the nodesbetween method, and it removes the newer method
Eric Hopper <hopper@omnifarious.org>
parents:
1351
diff
changeset
|
837 # Also, keep the original roots so we can filter out roots that aren't |
518da3c3b6ce
This implements the nodesbetween method, and it removes the newer method
Eric Hopper <hopper@omnifarious.org>
parents:
1351
diff
changeset
|
838 # 'real' roots (i.e. are descended from other roots). |
14549
48ec0763afbb
check-code: catch misspellings of descendant
Matt Mackall <mpm@selenic.com>
parents:
14523
diff
changeset
|
839 roots = descendants.copy() |
1457
518da3c3b6ce
This implements the nodesbetween method, and it removes the newer method
Eric Hopper <hopper@omnifarious.org>
parents:
1351
diff
changeset
|
840 # Our topologically sorted list of output nodes. |
518da3c3b6ce
This implements the nodesbetween method, and it removes the newer method
Eric Hopper <hopper@omnifarious.org>
parents:
1351
diff
changeset
|
841 orderedout = [] |
518da3c3b6ce
This implements the nodesbetween method, and it removes the newer method
Eric Hopper <hopper@omnifarious.org>
parents:
1351
diff
changeset
|
842 # Don't start at nullid since we don't want nullid in our output list, |
17483 | 843 # and if nullid shows up in descendants, empty parents will look like |
14549
48ec0763afbb
check-code: catch misspellings of descendant
Matt Mackall <mpm@selenic.com>
parents:
14523
diff
changeset
|
844 # they're descendants. |
17672
474047947b8f
clfilter: make the revlog class responsible of all its iteration
Pierre-Yves David <pierre-yves.david@logilab.fr>
parents:
17537
diff
changeset
|
845 for r in self.revs(start=max(lowestrev, 0), stop=highestrev + 1): |
1457
518da3c3b6ce
This implements the nodesbetween method, and it removes the newer method
Eric Hopper <hopper@omnifarious.org>
parents:
1351
diff
changeset
|
846 n = self.node(r) |
14549
48ec0763afbb
check-code: catch misspellings of descendant
Matt Mackall <mpm@selenic.com>
parents:
14523
diff
changeset
|
847 isdescendant = False |
48ec0763afbb
check-code: catch misspellings of descendant
Matt Mackall <mpm@selenic.com>
parents:
14523
diff
changeset
|
848 if lowestrev == nullrev: # Everybody is a descendant of nullid |
48ec0763afbb
check-code: catch misspellings of descendant
Matt Mackall <mpm@selenic.com>
parents:
14523
diff
changeset
|
849 isdescendant = True |
48ec0763afbb
check-code: catch misspellings of descendant
Matt Mackall <mpm@selenic.com>
parents:
14523
diff
changeset
|
850 elif n in descendants: |
48ec0763afbb
check-code: catch misspellings of descendant
Matt Mackall <mpm@selenic.com>
parents:
14523
diff
changeset
|
851 # n is already a descendant |
48ec0763afbb
check-code: catch misspellings of descendant
Matt Mackall <mpm@selenic.com>
parents:
14523
diff
changeset
|
852 isdescendant = True |
1457
518da3c3b6ce
This implements the nodesbetween method, and it removes the newer method
Eric Hopper <hopper@omnifarious.org>
parents:
1351
diff
changeset
|
853 # This check only needs to be done here because all the roots |
14549
48ec0763afbb
check-code: catch misspellings of descendant
Matt Mackall <mpm@selenic.com>
parents:
14523
diff
changeset
|
854 # will start being marked is descendants before the loop. |
1457
518da3c3b6ce
This implements the nodesbetween method, and it removes the newer method
Eric Hopper <hopper@omnifarious.org>
parents:
1351
diff
changeset
|
855 if n in roots: |
518da3c3b6ce
This implements the nodesbetween method, and it removes the newer method
Eric Hopper <hopper@omnifarious.org>
parents:
1351
diff
changeset
|
856 # If n was a root, check if it's a 'real' root. |
518da3c3b6ce
This implements the nodesbetween method, and it removes the newer method
Eric Hopper <hopper@omnifarious.org>
parents:
1351
diff
changeset
|
857 p = tuple(self.parents(n)) |
14549
48ec0763afbb
check-code: catch misspellings of descendant
Matt Mackall <mpm@selenic.com>
parents:
14523
diff
changeset
|
858 # If any of its parents are descendants, it's not a root. |
48ec0763afbb
check-code: catch misspellings of descendant
Matt Mackall <mpm@selenic.com>
parents:
14523
diff
changeset
|
859 if (p[0] in descendants) or (p[1] in descendants): |
8152
08e1baf924ca
replace set-like dictionaries with real sets
Martin Geisler <mg@lazybytes.net>
parents:
8150
diff
changeset
|
860 roots.remove(n) |
1457
518da3c3b6ce
This implements the nodesbetween method, and it removes the newer method
Eric Hopper <hopper@omnifarious.org>
parents:
1351
diff
changeset
|
861 else: |
518da3c3b6ce
This implements the nodesbetween method, and it removes the newer method
Eric Hopper <hopper@omnifarious.org>
parents:
1351
diff
changeset
|
862 p = tuple(self.parents(n)) |
14549
48ec0763afbb
check-code: catch misspellings of descendant
Matt Mackall <mpm@selenic.com>
parents:
14523
diff
changeset
|
863 # A node is a descendant if either of its parents are |
48ec0763afbb
check-code: catch misspellings of descendant
Matt Mackall <mpm@selenic.com>
parents:
14523
diff
changeset
|
864 # descendants. (We seeded the dependents list with the roots |
1457
518da3c3b6ce
This implements the nodesbetween method, and it removes the newer method
Eric Hopper <hopper@omnifarious.org>
parents:
1351
diff
changeset
|
865 # up there, remember?) |
14549
48ec0763afbb
check-code: catch misspellings of descendant
Matt Mackall <mpm@selenic.com>
parents:
14523
diff
changeset
|
866 if (p[0] in descendants) or (p[1] in descendants): |
48ec0763afbb
check-code: catch misspellings of descendant
Matt Mackall <mpm@selenic.com>
parents:
14523
diff
changeset
|
867 descendants.add(n) |
48ec0763afbb
check-code: catch misspellings of descendant
Matt Mackall <mpm@selenic.com>
parents:
14523
diff
changeset
|
868 isdescendant = True |
48ec0763afbb
check-code: catch misspellings of descendant
Matt Mackall <mpm@selenic.com>
parents:
14523
diff
changeset
|
869 if isdescendant and ((ancestors is None) or (n in ancestors)): |
48ec0763afbb
check-code: catch misspellings of descendant
Matt Mackall <mpm@selenic.com>
parents:
14523
diff
changeset
|
870 # Only include nodes that are both descendants and ancestors. |
1457
518da3c3b6ce
This implements the nodesbetween method, and it removes the newer method
Eric Hopper <hopper@omnifarious.org>
parents:
1351
diff
changeset
|
871 orderedout.append(n) |
518da3c3b6ce
This implements the nodesbetween method, and it removes the newer method
Eric Hopper <hopper@omnifarious.org>
parents:
1351
diff
changeset
|
872 if (ancestors is not None) and (n in heads): |
518da3c3b6ce
This implements the nodesbetween method, and it removes the newer method
Eric Hopper <hopper@omnifarious.org>
parents:
1351
diff
changeset
|
873 # We're trying to figure out which heads are reachable |
518da3c3b6ce
This implements the nodesbetween method, and it removes the newer method
Eric Hopper <hopper@omnifarious.org>
parents:
1351
diff
changeset
|
874 # from roots. |
518da3c3b6ce
This implements the nodesbetween method, and it removes the newer method
Eric Hopper <hopper@omnifarious.org>
parents:
1351
diff
changeset
|
875 # Mark this head as having been reached |
14219
c33427080671
revlog: use real Booleans instead of 0/1 in nodesbetween
Martin Geisler <mg@aragost.com>
parents:
14208
diff
changeset
|
876 heads[n] = True |
1457
518da3c3b6ce
This implements the nodesbetween method, and it removes the newer method
Eric Hopper <hopper@omnifarious.org>
parents:
1351
diff
changeset
|
877 elif ancestors is None: |
518da3c3b6ce
This implements the nodesbetween method, and it removes the newer method
Eric Hopper <hopper@omnifarious.org>
parents:
1351
diff
changeset
|
878 # Otherwise, we're trying to discover the heads. |
518da3c3b6ce
This implements the nodesbetween method, and it removes the newer method
Eric Hopper <hopper@omnifarious.org>
parents:
1351
diff
changeset
|
879 # Assume this is a head because if it isn't, the next step |
518da3c3b6ce
This implements the nodesbetween method, and it removes the newer method
Eric Hopper <hopper@omnifarious.org>
parents:
1351
diff
changeset
|
880 # will eventually remove it. |
14219
c33427080671
revlog: use real Booleans instead of 0/1 in nodesbetween
Martin Geisler <mg@aragost.com>
parents:
14208
diff
changeset
|
881 heads[n] = True |
1457
518da3c3b6ce
This implements the nodesbetween method, and it removes the newer method
Eric Hopper <hopper@omnifarious.org>
parents:
1351
diff
changeset
|
882 # But, obviously its parents aren't. |
518da3c3b6ce
This implements the nodesbetween method, and it removes the newer method
Eric Hopper <hopper@omnifarious.org>
parents:
1351
diff
changeset
|
883 for p in self.parents(n): |
518da3c3b6ce
This implements the nodesbetween method, and it removes the newer method
Eric Hopper <hopper@omnifarious.org>
parents:
1351
diff
changeset
|
884 heads.pop(p, None) |
30391
2ded17b64f09
revlog: avoid shadowing several variables using list comprehensions
Augie Fackler <augie@google.com>
parents:
30289
diff
changeset
|
885 heads = [head for head, flag in heads.iteritems() if flag] |
8152
08e1baf924ca
replace set-like dictionaries with real sets
Martin Geisler <mg@lazybytes.net>
parents:
8150
diff
changeset
|
886 roots = list(roots) |
1457
518da3c3b6ce
This implements the nodesbetween method, and it removes the newer method
Eric Hopper <hopper@omnifarious.org>
parents:
1351
diff
changeset
|
887 assert orderedout |
518da3c3b6ce
This implements the nodesbetween method, and it removes the newer method
Eric Hopper <hopper@omnifarious.org>
parents:
1351
diff
changeset
|
888 assert roots |
518da3c3b6ce
This implements the nodesbetween method, and it removes the newer method
Eric Hopper <hopper@omnifarious.org>
parents:
1351
diff
changeset
|
889 assert heads |
518da3c3b6ce
This implements the nodesbetween method, and it removes the newer method
Eric Hopper <hopper@omnifarious.org>
parents:
1351
diff
changeset
|
890 return (orderedout, roots, heads) |
518da3c3b6ce
This implements the nodesbetween method, and it removes the newer method
Eric Hopper <hopper@omnifarious.org>
parents:
1351
diff
changeset
|
891 |
14164
cb98fed52495
discovery: add new set-based discovery
Peter Arrenbrecht <peter.arrenbrecht@gmail.com>
parents:
14144
diff
changeset
|
892 def headrevs(self): |
16786
2631cd5dd244
revlog: switch to a C version of headrevs
Bryan O'Sullivan <bryano@fb.com>
parents:
16762
diff
changeset
|
893 try: |
2631cd5dd244
revlog: switch to a C version of headrevs
Bryan O'Sullivan <bryano@fb.com>
parents:
16762
diff
changeset
|
894 return self.index.headrevs() |
2631cd5dd244
revlog: switch to a C version of headrevs
Bryan O'Sullivan <bryano@fb.com>
parents:
16762
diff
changeset
|
895 except AttributeError: |
17674
e69274f8d444
clfilter: split `revlog.headrevs` C call from python code
Pierre-Yves David <pierre-yves.david@logilab.fr>
parents:
17673
diff
changeset
|
896 return self._headrevs() |
e69274f8d444
clfilter: split `revlog.headrevs` C call from python code
Pierre-Yves David <pierre-yves.david@logilab.fr>
parents:
17673
diff
changeset
|
897 |
24444
27e3ba73fbb1
phase: default to C implementation for phase computation
Laurent Charignon <lcharignon@fb.com>
parents:
24255
diff
changeset
|
898 def computephases(self, roots): |
25361
1635579f9baf
phases: fix bug where native phase computation wasn't called
Laurent Charignon <lcharignon@fb.com>
parents:
25113
diff
changeset
|
899 return self.index.computephasesmapsets(roots) |
24444
27e3ba73fbb1
phase: default to C implementation for phase computation
Laurent Charignon <lcharignon@fb.com>
parents:
24255
diff
changeset
|
900 |
17674
e69274f8d444
clfilter: split `revlog.headrevs` C call from python code
Pierre-Yves David <pierre-yves.david@logilab.fr>
parents:
17673
diff
changeset
|
901 def _headrevs(self): |
14164
cb98fed52495
discovery: add new set-based discovery
Peter Arrenbrecht <peter.arrenbrecht@gmail.com>
parents:
14144
diff
changeset
|
902 count = len(self) |
cb98fed52495
discovery: add new set-based discovery
Peter Arrenbrecht <peter.arrenbrecht@gmail.com>
parents:
14144
diff
changeset
|
903 if not count: |
cb98fed52495
discovery: add new set-based discovery
Peter Arrenbrecht <peter.arrenbrecht@gmail.com>
parents:
14144
diff
changeset
|
904 return [nullrev] |
17673
d686c6876ef6
clfilter: handle non contiguous iteration in `revlov.headrevs`
Pierre-Yves David <pierre-yves.david@logilab.fr>
parents:
17672
diff
changeset
|
905 # we won't iter over filtered rev so nobody is a head at start |
d686c6876ef6
clfilter: handle non contiguous iteration in `revlov.headrevs`
Pierre-Yves David <pierre-yves.david@logilab.fr>
parents:
17672
diff
changeset
|
906 ishead = [0] * (count + 1) |
14164
cb98fed52495
discovery: add new set-based discovery
Peter Arrenbrecht <peter.arrenbrecht@gmail.com>
parents:
14144
diff
changeset
|
907 index = self.index |
17672
474047947b8f
clfilter: make the revlog class responsible of all its iteration
Pierre-Yves David <pierre-yves.david@logilab.fr>
parents:
17537
diff
changeset
|
908 for r in self: |
17673
d686c6876ef6
clfilter: handle non contiguous iteration in `revlov.headrevs`
Pierre-Yves David <pierre-yves.david@logilab.fr>
parents:
17672
diff
changeset
|
909 ishead[r] = 1 # I may be an head |
14164
cb98fed52495
discovery: add new set-based discovery
Peter Arrenbrecht <peter.arrenbrecht@gmail.com>
parents:
14144
diff
changeset
|
910 e = index[r] |
17673
d686c6876ef6
clfilter: handle non contiguous iteration in `revlov.headrevs`
Pierre-Yves David <pierre-yves.david@logilab.fr>
parents:
17672
diff
changeset
|
911 ishead[e[5]] = ishead[e[6]] = 0 # my parent are not |
d686c6876ef6
clfilter: handle non contiguous iteration in `revlov.headrevs`
Pierre-Yves David <pierre-yves.david@logilab.fr>
parents:
17672
diff
changeset
|
912 return [r for r, val in enumerate(ishead) if val] |
14164
cb98fed52495
discovery: add new set-based discovery
Peter Arrenbrecht <peter.arrenbrecht@gmail.com>
parents:
14144
diff
changeset
|
913 |
3923
27230c29bfec
fix calculation of new heads added during push with -r
Benoit Boissinot <benoit.boissinot@ens-lyon.org>
parents:
3755
diff
changeset
|
914 def heads(self, start=None, stop=None): |
1550
ccb9b62de892
add a -r/--rev option to heads to show only heads descendant from rev
Benoit Boissinot <benoit.boissinot@ens-lyon.org>
parents:
1535
diff
changeset
|
915 """return the list of all nodes that have no children |
1551
e793cbc8be00
Fixes to "hg heads -r FOO":
Thomas Arendsen Hein <thomas@intevation.de>
parents:
1550
diff
changeset
|
916 |
e793cbc8be00
Fixes to "hg heads -r FOO":
Thomas Arendsen Hein <thomas@intevation.de>
parents:
1550
diff
changeset
|
917 if start is specified, only heads that are descendants of |
e793cbc8be00
Fixes to "hg heads -r FOO":
Thomas Arendsen Hein <thomas@intevation.de>
parents:
1550
diff
changeset
|
918 start will be returned |
3923
27230c29bfec
fix calculation of new heads added during push with -r
Benoit Boissinot <benoit.boissinot@ens-lyon.org>
parents:
3755
diff
changeset
|
919 if stop is specified, it will consider all the revs from stop |
27230c29bfec
fix calculation of new heads added during push with -r
Benoit Boissinot <benoit.boissinot@ens-lyon.org>
parents:
3755
diff
changeset
|
920 as if they had no children |
1551
e793cbc8be00
Fixes to "hg heads -r FOO":
Thomas Arendsen Hein <thomas@intevation.de>
parents:
1550
diff
changeset
|
921 """ |
4991
9c8c42bcf17a
revlog: implement a fast path for heads
Matt Mackall <mpm@selenic.com>
parents:
4990
diff
changeset
|
922 if start is None and stop is None: |
14164
cb98fed52495
discovery: add new set-based discovery
Peter Arrenbrecht <peter.arrenbrecht@gmail.com>
parents:
14144
diff
changeset
|
923 if not len(self): |
4991
9c8c42bcf17a
revlog: implement a fast path for heads
Matt Mackall <mpm@selenic.com>
parents:
4990
diff
changeset
|
924 return [nullid] |
14164
cb98fed52495
discovery: add new set-based discovery
Peter Arrenbrecht <peter.arrenbrecht@gmail.com>
parents:
14144
diff
changeset
|
925 return [self.node(r) for r in self.headrevs()] |
4991
9c8c42bcf17a
revlog: implement a fast path for heads
Matt Mackall <mpm@selenic.com>
parents:
4990
diff
changeset
|
926 |
1551
e793cbc8be00
Fixes to "hg heads -r FOO":
Thomas Arendsen Hein <thomas@intevation.de>
parents:
1550
diff
changeset
|
927 if start is None: |
e793cbc8be00
Fixes to "hg heads -r FOO":
Thomas Arendsen Hein <thomas@intevation.de>
parents:
1550
diff
changeset
|
928 start = nullid |
3923
27230c29bfec
fix calculation of new heads added during push with -r
Benoit Boissinot <benoit.boissinot@ens-lyon.org>
parents:
3755
diff
changeset
|
929 if stop is None: |
27230c29bfec
fix calculation of new heads added during push with -r
Benoit Boissinot <benoit.boissinot@ens-lyon.org>
parents:
3755
diff
changeset
|
930 stop = [] |
8152
08e1baf924ca
replace set-like dictionaries with real sets
Martin Geisler <mg@lazybytes.net>
parents:
8150
diff
changeset
|
931 stoprevs = set([self.rev(n) for n in stop]) |
1550
ccb9b62de892
add a -r/--rev option to heads to show only heads descendant from rev
Benoit Boissinot <benoit.boissinot@ens-lyon.org>
parents:
1535
diff
changeset
|
932 startrev = self.rev(start) |
32291
bd872f64a8ba
cleanup: use set literals
Martin von Zweigbergk <martinvonz@google.com>
parents:
32286
diff
changeset
|
933 reachable = {startrev} |
bd872f64a8ba
cleanup: use set literals
Martin von Zweigbergk <martinvonz@google.com>
parents:
32286
diff
changeset
|
934 heads = {startrev} |
1083 | 935 |
2490
6ff82ec1f4b8
Change revlog.heads to walk the revision graph using revision numbers
Alexis S. L. Carvalho <alexis@cecm.usp.br>
parents:
2489
diff
changeset
|
936 parentrevs = self.parentrevs |
17672
474047947b8f
clfilter: make the revlog class responsible of all its iteration
Pierre-Yves David <pierre-yves.david@logilab.fr>
parents:
17537
diff
changeset
|
937 for r in self.revs(start=startrev + 1): |
2490
6ff82ec1f4b8
Change revlog.heads to walk the revision graph using revision numbers
Alexis S. L. Carvalho <alexis@cecm.usp.br>
parents:
2489
diff
changeset
|
938 for p in parentrevs(r): |
6ff82ec1f4b8
Change revlog.heads to walk the revision graph using revision numbers
Alexis S. L. Carvalho <alexis@cecm.usp.br>
parents:
2489
diff
changeset
|
939 if p in reachable: |
3923
27230c29bfec
fix calculation of new heads added during push with -r
Benoit Boissinot <benoit.boissinot@ens-lyon.org>
parents:
3755
diff
changeset
|
940 if r not in stoprevs: |
8464
7af92e70bb25
revlog: use set instead of dict
Benoit Boissinot <benoit.boissinot@ens-lyon.org>
parents:
8453
diff
changeset
|
941 reachable.add(r) |
7af92e70bb25
revlog: use set instead of dict
Benoit Boissinot <benoit.boissinot@ens-lyon.org>
parents:
8453
diff
changeset
|
942 heads.add(r) |
3923
27230c29bfec
fix calculation of new heads added during push with -r
Benoit Boissinot <benoit.boissinot@ens-lyon.org>
parents:
3755
diff
changeset
|
943 if p in heads and p not in stoprevs: |
8464
7af92e70bb25
revlog: use set instead of dict
Benoit Boissinot <benoit.boissinot@ens-lyon.org>
parents:
8453
diff
changeset
|
944 heads.remove(p) |
3923
27230c29bfec
fix calculation of new heads added during push with -r
Benoit Boissinot <benoit.boissinot@ens-lyon.org>
parents:
3755
diff
changeset
|
945 |
2490
6ff82ec1f4b8
Change revlog.heads to walk the revision graph using revision numbers
Alexis S. L. Carvalho <alexis@cecm.usp.br>
parents:
2489
diff
changeset
|
946 return [self.node(r) for r in heads] |
370 | 947 |
948 def children(self, node): | |
1083 | 949 """find the children of a given node""" |
370 | 950 c = [] |
951 p = self.rev(node) | |
17672
474047947b8f
clfilter: make the revlog class responsible of all its iteration
Pierre-Yves David <pierre-yves.david@logilab.fr>
parents:
17537
diff
changeset
|
952 for r in self.revs(start=p + 1): |
4746
62c56d8f368b
Fix revlog.children so the real children of the null revision can be calculated.
Thomas Arendsen Hein <thomas@intevation.de>
parents:
4635
diff
changeset
|
953 prevs = [pr for pr in self.parentrevs(r) if pr != nullrev] |
62c56d8f368b
Fix revlog.children so the real children of the null revision can be calculated.
Thomas Arendsen Hein <thomas@intevation.de>
parents:
4635
diff
changeset
|
954 if prevs: |
62c56d8f368b
Fix revlog.children so the real children of the null revision can be calculated.
Thomas Arendsen Hein <thomas@intevation.de>
parents:
4635
diff
changeset
|
955 for pr in prevs: |
62c56d8f368b
Fix revlog.children so the real children of the null revision can be calculated.
Thomas Arendsen Hein <thomas@intevation.de>
parents:
4635
diff
changeset
|
956 if pr == p: |
62c56d8f368b
Fix revlog.children so the real children of the null revision can be calculated.
Thomas Arendsen Hein <thomas@intevation.de>
parents:
4635
diff
changeset
|
957 c.append(self.node(r)) |
62c56d8f368b
Fix revlog.children so the real children of the null revision can be calculated.
Thomas Arendsen Hein <thomas@intevation.de>
parents:
4635
diff
changeset
|
958 elif p == nullrev: |
62c56d8f368b
Fix revlog.children so the real children of the null revision can be calculated.
Thomas Arendsen Hein <thomas@intevation.de>
parents:
4635
diff
changeset
|
959 c.append(self.node(r)) |
370 | 960 return c |
515 | 961 |
10897
adb6a291bbdb
revlog: put graph related functions together
Benoit Boissinot <benoit.boissinot@ens-lyon.org>
parents:
10404
diff
changeset
|
962 def descendant(self, start, end): |
12949
6878eaa5a40d
revlog: if start is nullrev, end is always a descendant
Nicolas Dumazet <nicdumz.commits@gmail.com>
parents:
12890
diff
changeset
|
963 if start == nullrev: |
6878eaa5a40d
revlog: if start is nullrev, end is always a descendant
Nicolas Dumazet <nicdumz.commits@gmail.com>
parents:
12890
diff
changeset
|
964 return True |
16867
1093ad1e8903
revlog: descendants(*revs) becomes descendants(revs) (API)
Bryan O'Sullivan <bryano@fb.com>
parents:
16866
diff
changeset
|
965 for i in self.descendants([start]): |
10897
adb6a291bbdb
revlog: put graph related functions together
Benoit Boissinot <benoit.boissinot@ens-lyon.org>
parents:
10404
diff
changeset
|
966 if i == end: |
adb6a291bbdb
revlog: put graph related functions together
Benoit Boissinot <benoit.boissinot@ens-lyon.org>
parents:
10404
diff
changeset
|
967 return True |
adb6a291bbdb
revlog: put graph related functions together
Benoit Boissinot <benoit.boissinot@ens-lyon.org>
parents:
10404
diff
changeset
|
968 elif i > end: |
adb6a291bbdb
revlog: put graph related functions together
Benoit Boissinot <benoit.boissinot@ens-lyon.org>
parents:
10404
diff
changeset
|
969 break |
adb6a291bbdb
revlog: put graph related functions together
Benoit Boissinot <benoit.boissinot@ens-lyon.org>
parents:
10404
diff
changeset
|
970 return False |
adb6a291bbdb
revlog: put graph related functions together
Benoit Boissinot <benoit.boissinot@ens-lyon.org>
parents:
10404
diff
changeset
|
971 |
21104
40ace21cb3a1
revlog: introduce commonancestorsheads method
Mads Kiilerich <madski@unity3d.com>
parents:
20965
diff
changeset
|
972 def commonancestorsheads(self, a, b): |
40ace21cb3a1
revlog: introduce commonancestorsheads method
Mads Kiilerich <madski@unity3d.com>
parents:
20965
diff
changeset
|
973 """calculate all the heads of the common ancestors of nodes a and b""" |
40ace21cb3a1
revlog: introduce commonancestorsheads method
Mads Kiilerich <madski@unity3d.com>
parents:
20965
diff
changeset
|
974 a, b = self.rev(a), self.rev(b) |
40ace21cb3a1
revlog: introduce commonancestorsheads method
Mads Kiilerich <madski@unity3d.com>
parents:
20965
diff
changeset
|
975 try: |
40ace21cb3a1
revlog: introduce commonancestorsheads method
Mads Kiilerich <madski@unity3d.com>
parents:
20965
diff
changeset
|
976 ancs = self.index.commonancestorsheads(a, b) |
40ace21cb3a1
revlog: introduce commonancestorsheads method
Mads Kiilerich <madski@unity3d.com>
parents:
20965
diff
changeset
|
977 except (AttributeError, OverflowError): # C implementation failed |
40ace21cb3a1
revlog: introduce commonancestorsheads method
Mads Kiilerich <madski@unity3d.com>
parents:
20965
diff
changeset
|
978 ancs = ancestor.commonancestorsheads(self.parentrevs, a, b) |
31574
a8e55d6f1d67
revlog: use pycompat.maplist to eagerly evaluate map on Python 3
Augie Fackler <augie@google.com>
parents:
31504
diff
changeset
|
979 return pycompat.maplist(self.node, ancs) |
21104
40ace21cb3a1
revlog: introduce commonancestorsheads method
Mads Kiilerich <madski@unity3d.com>
parents:
20965
diff
changeset
|
980 |
22381
392ae5cb8d62
revlog: introduce isancestor method for efficiently determining node lineage
Mads Kiilerich <madski@unity3d.com>
parents:
22282
diff
changeset
|
981 def isancestor(self, a, b): |
392ae5cb8d62
revlog: introduce isancestor method for efficiently determining node lineage
Mads Kiilerich <madski@unity3d.com>
parents:
22282
diff
changeset
|
982 """return True if node a is an ancestor of node b |
392ae5cb8d62
revlog: introduce isancestor method for efficiently determining node lineage
Mads Kiilerich <madski@unity3d.com>
parents:
22282
diff
changeset
|
983 |
392ae5cb8d62
revlog: introduce isancestor method for efficiently determining node lineage
Mads Kiilerich <madski@unity3d.com>
parents:
22282
diff
changeset
|
984 The implementation of this is trivial but the use of |
392ae5cb8d62
revlog: introduce isancestor method for efficiently determining node lineage
Mads Kiilerich <madski@unity3d.com>
parents:
22282
diff
changeset
|
985 commonancestorsheads is not.""" |
392ae5cb8d62
revlog: introduce isancestor method for efficiently determining node lineage
Mads Kiilerich <madski@unity3d.com>
parents:
22282
diff
changeset
|
986 return a in self.commonancestorsheads(a, b) |
392ae5cb8d62
revlog: introduce isancestor method for efficiently determining node lineage
Mads Kiilerich <madski@unity3d.com>
parents:
22282
diff
changeset
|
987 |
21107
4a6c8b6b10d3
revlog: backout 514d32de6646 - commonancestors
Mads Kiilerich <madski@unity3d.com>
parents:
21104
diff
changeset
|
988 def ancestor(self, a, b): |
22389
94f77624dbb5
comments: describe ancestor consistently - avoid 'least common ancestor'
Mads Kiilerich <madski@unity3d.com>
parents:
22381
diff
changeset
|
989 """calculate the "best" common ancestor of nodes a and b""" |
21107
4a6c8b6b10d3
revlog: backout 514d32de6646 - commonancestors
Mads Kiilerich <madski@unity3d.com>
parents:
21104
diff
changeset
|
990 |
10897
adb6a291bbdb
revlog: put graph related functions together
Benoit Boissinot <benoit.boissinot@ens-lyon.org>
parents:
10404
diff
changeset
|
991 a, b = self.rev(a), self.rev(b) |
18988
5bae936764bb
parsers: a C implementation of the new ancestors algorithm
Bryan O'Sullivan <bryano@fb.com>
parents:
18987
diff
changeset
|
992 try: |
5bae936764bb
parsers: a C implementation of the new ancestors algorithm
Bryan O'Sullivan <bryano@fb.com>
parents:
18987
diff
changeset
|
993 ancs = self.index.ancestors(a, b) |
21107
4a6c8b6b10d3
revlog: backout 514d32de6646 - commonancestors
Mads Kiilerich <madski@unity3d.com>
parents:
21104
diff
changeset
|
994 except (AttributeError, OverflowError): |
18988
5bae936764bb
parsers: a C implementation of the new ancestors algorithm
Bryan O'Sullivan <bryano@fb.com>
parents:
18987
diff
changeset
|
995 ancs = ancestor.ancestors(self.parentrevs, a, b) |
18987
3605d4e7e618
revlog: choose a consistent ancestor when there's a tie
Bryan O'Sullivan <bryano@fb.com>
parents:
18986
diff
changeset
|
996 if ancs: |
3605d4e7e618
revlog: choose a consistent ancestor when there's a tie
Bryan O'Sullivan <bryano@fb.com>
parents:
18986
diff
changeset
|
997 # choose a consistent winner when there's a tie |
21107
4a6c8b6b10d3
revlog: backout 514d32de6646 - commonancestors
Mads Kiilerich <madski@unity3d.com>
parents:
21104
diff
changeset
|
998 return min(map(self.node, ancs)) |
18987
3605d4e7e618
revlog: choose a consistent ancestor when there's a tie
Bryan O'Sullivan <bryano@fb.com>
parents:
18986
diff
changeset
|
999 return nullid |
10897
adb6a291bbdb
revlog: put graph related functions together
Benoit Boissinot <benoit.boissinot@ens-lyon.org>
parents:
10404
diff
changeset
|
1000 |
3453
dba3cadef789
Only look up tags and branches as a last resort
Matt Mackall <mpm@selenic.com>
parents:
3438
diff
changeset
|
1001 def _match(self, id): |
16762
93f8b9565257
revlog: don't handle long for revision matching
Matt Mackall <mpm@selenic.com>
parents:
16686
diff
changeset
|
1002 if isinstance(id, int): |
3156
d01e4cb2f5f2
cleanups in revlog.lookup
Benoit Boissinot <benoit.boissinot@ens-lyon.org>
parents:
3139
diff
changeset
|
1003 # rev |
2641
156fb1feab62
lookup should allow -1 to represent nullid (if passed an int as arg)
Benoit Boissinot <benoit.boissinot@ens-lyon.org>
parents:
2600
diff
changeset
|
1004 return self.node(id) |
3438 | 1005 if len(id) == 20: |
1006 # possibly a binary node | |
1007 # odds of a binary node being all hex in ASCII are 1 in 10**25 | |
1008 try: | |
1009 node = id | |
7874
d812029cda85
cleanup: drop variables for unused return values
Peter Arrenbrecht <peter.arrenbrecht@gmail.com>
parents:
7873
diff
changeset
|
1010 self.rev(node) # quick search the index |
3438 | 1011 return node |
3930
01d98d68d697
Add revlog.LookupError exception, and use it instead of RevlogError.
Brendan Cully <brendan@kublai.com>
parents:
3928
diff
changeset
|
1012 except LookupError: |
3438 | 1013 pass # may be partial hex id |
36
da28286bf6b7
Add smart node lookup by substring or by rev number
mpm@selenic.com
parents:
26
diff
changeset
|
1014 try: |
3156
d01e4cb2f5f2
cleanups in revlog.lookup
Benoit Boissinot <benoit.boissinot@ens-lyon.org>
parents:
3139
diff
changeset
|
1015 # str(rev) |
36
da28286bf6b7
Add smart node lookup by substring or by rev number
mpm@selenic.com
parents:
26
diff
changeset
|
1016 rev = int(id) |
4980
fc44c8df9d99
revlog: some codingstyle cleanups
Matt Mackall <mpm@selenic.com>
parents:
4979
diff
changeset
|
1017 if str(rev) != id: |
fc44c8df9d99
revlog: some codingstyle cleanups
Matt Mackall <mpm@selenic.com>
parents:
4979
diff
changeset
|
1018 raise ValueError |
fc44c8df9d99
revlog: some codingstyle cleanups
Matt Mackall <mpm@selenic.com>
parents:
4979
diff
changeset
|
1019 if rev < 0: |
6750
fb42030d79d6
add __len__ and __iter__ methods to repo and revlog
Matt Mackall <mpm@selenic.com>
parents:
6703
diff
changeset
|
1020 rev = len(self) + rev |
fb42030d79d6
add __len__ and __iter__ methods to repo and revlog
Matt Mackall <mpm@selenic.com>
parents:
6703
diff
changeset
|
1021 if rev < 0 or rev >= len(self): |
4980
fc44c8df9d99
revlog: some codingstyle cleanups
Matt Mackall <mpm@selenic.com>
parents:
4979
diff
changeset
|
1022 raise ValueError |
36
da28286bf6b7
Add smart node lookup by substring or by rev number
mpm@selenic.com
parents:
26
diff
changeset
|
1023 return self.node(rev) |
469 | 1024 except (ValueError, OverflowError): |
3156
d01e4cb2f5f2
cleanups in revlog.lookup
Benoit Boissinot <benoit.boissinot@ens-lyon.org>
parents:
3139
diff
changeset
|
1025 pass |
3453
dba3cadef789
Only look up tags and branches as a last resort
Matt Mackall <mpm@selenic.com>
parents:
3438
diff
changeset
|
1026 if len(id) == 40: |
dba3cadef789
Only look up tags and branches as a last resort
Matt Mackall <mpm@selenic.com>
parents:
3438
diff
changeset
|
1027 try: |
3438 | 1028 # a full hex nodeid? |
1029 node = bin(id) | |
7874
d812029cda85
cleanup: drop variables for unused return values
Peter Arrenbrecht <peter.arrenbrecht@gmail.com>
parents:
7873
diff
changeset
|
1030 self.rev(node) |
3157
4fe41a9e4591
optimize revlog.lookup when passed hex(node)[:...]
Benoit Boissinot <benoit.boissinot@ens-lyon.org>
parents:
3156
diff
changeset
|
1031 return node |
7062
efc579fdaf69
provide nicer feedback when an unknown node id is passed to a command
Sune Foldager <cryo@cyanite.org>
parents:
6912
diff
changeset
|
1032 except (TypeError, LookupError): |
3453
dba3cadef789
Only look up tags and branches as a last resort
Matt Mackall <mpm@selenic.com>
parents:
3438
diff
changeset
|
1033 pass |
dba3cadef789
Only look up tags and branches as a last resort
Matt Mackall <mpm@selenic.com>
parents:
3438
diff
changeset
|
1034 |
dba3cadef789
Only look up tags and branches as a last resort
Matt Mackall <mpm@selenic.com>
parents:
3438
diff
changeset
|
1035 def _partialmatch(self, id): |
16665
e410be860393
revlog: speed up prefix matching against nodes
Bryan O'Sullivan <bryano@fb.com>
parents:
16533
diff
changeset
|
1036 try: |
30391
2ded17b64f09
revlog: avoid shadowing several variables using list comprehensions
Augie Fackler <augie@google.com>
parents:
30289
diff
changeset
|
1037 partial = self.index.partialmatch(id) |
2ded17b64f09
revlog: avoid shadowing several variables using list comprehensions
Augie Fackler <augie@google.com>
parents:
30289
diff
changeset
|
1038 if partial and self.hasnode(partial): |
2ded17b64f09
revlog: avoid shadowing several variables using list comprehensions
Augie Fackler <augie@google.com>
parents:
30289
diff
changeset
|
1039 return partial |
19471
fd1bb7c1be78
revlog: handle hidden revs in _partialmatch (issue3979)
Matt Mackall <mpm@selenic.com>
parents:
19326
diff
changeset
|
1040 return None |
16665
e410be860393
revlog: speed up prefix matching against nodes
Bryan O'Sullivan <bryano@fb.com>
parents:
16533
diff
changeset
|
1041 except RevlogError: |
e410be860393
revlog: speed up prefix matching against nodes
Bryan O'Sullivan <bryano@fb.com>
parents:
16533
diff
changeset
|
1042 # parsers.c radix tree lookup gave multiple matches |
29396
d0ae5b8f80dc
revlog: add a fast path for "ambiguous identifier"
Jun Wu <quark@fb.com>
parents:
29339
diff
changeset
|
1043 # fast path: for unfiltered changelog, radix tree is accurate |
d0ae5b8f80dc
revlog: add a fast path for "ambiguous identifier"
Jun Wu <quark@fb.com>
parents:
29339
diff
changeset
|
1044 if not getattr(self, 'filteredrevs', None): |
d0ae5b8f80dc
revlog: add a fast path for "ambiguous identifier"
Jun Wu <quark@fb.com>
parents:
29339
diff
changeset
|
1045 raise LookupError(id, self.indexfile, |
d0ae5b8f80dc
revlog: add a fast path for "ambiguous identifier"
Jun Wu <quark@fb.com>
parents:
29339
diff
changeset
|
1046 _('ambiguous identifier')) |
19471
fd1bb7c1be78
revlog: handle hidden revs in _partialmatch (issue3979)
Matt Mackall <mpm@selenic.com>
parents:
19326
diff
changeset
|
1047 # fall through to slow path that filters hidden revisions |
16665
e410be860393
revlog: speed up prefix matching against nodes
Bryan O'Sullivan <bryano@fb.com>
parents:
16533
diff
changeset
|
1048 except (AttributeError, ValueError): |
e410be860393
revlog: speed up prefix matching against nodes
Bryan O'Sullivan <bryano@fb.com>
parents:
16533
diff
changeset
|
1049 # we are pure python, or key was too short to search radix tree |
e410be860393
revlog: speed up prefix matching against nodes
Bryan O'Sullivan <bryano@fb.com>
parents:
16533
diff
changeset
|
1050 pass |
e410be860393
revlog: speed up prefix matching against nodes
Bryan O'Sullivan <bryano@fb.com>
parents:
16533
diff
changeset
|
1051 |
13258
c2661863f16f
revlog: introduce a cache for partial lookups
Matt Mackall <mpm@selenic.com>
parents:
13254
diff
changeset
|
1052 if id in self._pcache: |
c2661863f16f
revlog: introduce a cache for partial lookups
Matt Mackall <mpm@selenic.com>
parents:
13254
diff
changeset
|
1053 return self._pcache[id] |
c2661863f16f
revlog: introduce a cache for partial lookups
Matt Mackall <mpm@selenic.com>
parents:
13254
diff
changeset
|
1054 |
3453
dba3cadef789
Only look up tags and branches as a last resort
Matt Mackall <mpm@selenic.com>
parents:
3438
diff
changeset
|
1055 if len(id) < 40: |
dba3cadef789
Only look up tags and branches as a last resort
Matt Mackall <mpm@selenic.com>
parents:
3438
diff
changeset
|
1056 try: |
3438 | 1057 # hex(node)[:...] |
9029
0001e49f1c11
compat: use // for integer division
Alejandro Santos <alejolp@alejolp.com>
parents:
8658
diff
changeset
|
1058 l = len(id) // 2 # grab an even number of digits |
13259
3b616dfa4b17
revlog: do revlog node->rev mapping by scanning
Matt Mackall <mpm@selenic.com>
parents:
13258
diff
changeset
|
1059 prefix = bin(id[:l * 2]) |
3b616dfa4b17
revlog: do revlog node->rev mapping by scanning
Matt Mackall <mpm@selenic.com>
parents:
13258
diff
changeset
|
1060 nl = [e[7] for e in self.index if e[7].startswith(prefix)] |
19471
fd1bb7c1be78
revlog: handle hidden revs in _partialmatch (issue3979)
Matt Mackall <mpm@selenic.com>
parents:
19326
diff
changeset
|
1061 nl = [n for n in nl if hex(n).startswith(id) and |
fd1bb7c1be78
revlog: handle hidden revs in _partialmatch (issue3979)
Matt Mackall <mpm@selenic.com>
parents:
19326
diff
changeset
|
1062 self.hasnode(n)] |
7365
ec3aafa84d44
lookup: speed up partial lookup
Matt Mackall <mpm@selenic.com>
parents:
7363
diff
changeset
|
1063 if len(nl) > 0: |
ec3aafa84d44
lookup: speed up partial lookup
Matt Mackall <mpm@selenic.com>
parents:
7363
diff
changeset
|
1064 if len(nl) == 1: |
13258
c2661863f16f
revlog: introduce a cache for partial lookups
Matt Mackall <mpm@selenic.com>
parents:
13254
diff
changeset
|
1065 self._pcache[id] = nl[0] |
7365
ec3aafa84d44
lookup: speed up partial lookup
Matt Mackall <mpm@selenic.com>
parents:
7363
diff
changeset
|
1066 return nl[0] |
ec3aafa84d44
lookup: speed up partial lookup
Matt Mackall <mpm@selenic.com>
parents:
7363
diff
changeset
|
1067 raise LookupError(id, self.indexfile, |
ec3aafa84d44
lookup: speed up partial lookup
Matt Mackall <mpm@selenic.com>
parents:
7363
diff
changeset
|
1068 _('ambiguous identifier')) |
ec3aafa84d44
lookup: speed up partial lookup
Matt Mackall <mpm@selenic.com>
parents:
7363
diff
changeset
|
1069 return None |
3453
dba3cadef789
Only look up tags and branches as a last resort
Matt Mackall <mpm@selenic.com>
parents:
3438
diff
changeset
|
1070 except TypeError: |
dba3cadef789
Only look up tags and branches as a last resort
Matt Mackall <mpm@selenic.com>
parents:
3438
diff
changeset
|
1071 pass |
dba3cadef789
Only look up tags and branches as a last resort
Matt Mackall <mpm@selenic.com>
parents:
3438
diff
changeset
|
1072 |
dba3cadef789
Only look up tags and branches as a last resort
Matt Mackall <mpm@selenic.com>
parents:
3438
diff
changeset
|
1073 def lookup(self, id): |
dba3cadef789
Only look up tags and branches as a last resort
Matt Mackall <mpm@selenic.com>
parents:
3438
diff
changeset
|
1074 """locate a node based on: |
dba3cadef789
Only look up tags and branches as a last resort
Matt Mackall <mpm@selenic.com>
parents:
3438
diff
changeset
|
1075 - revision number or str(revision number) |
dba3cadef789
Only look up tags and branches as a last resort
Matt Mackall <mpm@selenic.com>
parents:
3438
diff
changeset
|
1076 - nodeid or subset of hex nodeid |
dba3cadef789
Only look up tags and branches as a last resort
Matt Mackall <mpm@selenic.com>
parents:
3438
diff
changeset
|
1077 """ |
dba3cadef789
Only look up tags and branches as a last resort
Matt Mackall <mpm@selenic.com>
parents:
3438
diff
changeset
|
1078 n = self._match(id) |
dba3cadef789
Only look up tags and branches as a last resort
Matt Mackall <mpm@selenic.com>
parents:
3438
diff
changeset
|
1079 if n is not None: |
dba3cadef789
Only look up tags and branches as a last resort
Matt Mackall <mpm@selenic.com>
parents:
3438
diff
changeset
|
1080 return n |
dba3cadef789
Only look up tags and branches as a last resort
Matt Mackall <mpm@selenic.com>
parents:
3438
diff
changeset
|
1081 n = self._partialmatch(id) |
dba3cadef789
Only look up tags and branches as a last resort
Matt Mackall <mpm@selenic.com>
parents:
3438
diff
changeset
|
1082 if n: |
dba3cadef789
Only look up tags and branches as a last resort
Matt Mackall <mpm@selenic.com>
parents:
3438
diff
changeset
|
1083 return n |
515 | 1084 |
6228
c0c4c7b1e8d3
revlog: report node and file when lookup fails
Matt Mackall <mpm@selenic.com>
parents:
6212
diff
changeset
|
1085 raise LookupError(id, self.indexfile, _('no match found')) |
36
da28286bf6b7
Add smart node lookup by substring or by rev number
mpm@selenic.com
parents:
26
diff
changeset
|
1086 |
2890
5df3e5cf16bc
Move cmp bits from filelog to revlog
Matt Mackall <mpm@selenic.com>
parents:
2859
diff
changeset
|
1087 def cmp(self, node, text): |
11539
a463e3c50212
cmp: document the fact that we return True if content is different
Nicolas Dumazet <nicdumz.commits@gmail.com>
parents:
11323
diff
changeset
|
1088 """compare text with a given file revision |
a463e3c50212
cmp: document the fact that we return True if content is different
Nicolas Dumazet <nicdumz.commits@gmail.com>
parents:
11323
diff
changeset
|
1089 |
a463e3c50212
cmp: document the fact that we return True if content is different
Nicolas Dumazet <nicdumz.commits@gmail.com>
parents:
11323
diff
changeset
|
1090 returns True if text is different than what is stored. |
a463e3c50212
cmp: document the fact that we return True if content is different
Nicolas Dumazet <nicdumz.commits@gmail.com>
parents:
11323
diff
changeset
|
1091 """ |
2890
5df3e5cf16bc
Move cmp bits from filelog to revlog
Matt Mackall <mpm@selenic.com>
parents:
2859
diff
changeset
|
1092 p1, p2 = self.parents(node) |
5df3e5cf16bc
Move cmp bits from filelog to revlog
Matt Mackall <mpm@selenic.com>
parents:
2859
diff
changeset
|
1093 return hash(text, p1, p2) != node |
5df3e5cf16bc
Move cmp bits from filelog to revlog
Matt Mackall <mpm@selenic.com>
parents:
2859
diff
changeset
|
1094 |
32227
1395f843ece4
revlog: rename internal functions containing "chunk" to use "segment"
Gregory Szorc <gregory.szorc@gmail.com>
parents:
31856
diff
changeset
|
1095 def _cachesegment(self, offset, data): |
27070
7860366b46c9
revlog: improve documentation
Gregory Szorc <gregory.szorc@gmail.com>
parents:
26907
diff
changeset
|
1096 """Add a segment to the revlog cache. |
7860366b46c9
revlog: improve documentation
Gregory Szorc <gregory.szorc@gmail.com>
parents:
26907
diff
changeset
|
1097 |
7860366b46c9
revlog: improve documentation
Gregory Szorc <gregory.szorc@gmail.com>
parents:
26907
diff
changeset
|
1098 Accepts an absolute offset and the data that is at that location. |
7860366b46c9
revlog: improve documentation
Gregory Szorc <gregory.szorc@gmail.com>
parents:
26907
diff
changeset
|
1099 """ |
8316
d593922cf480
revlog: clean up the chunk caching code
Matt Mackall <mpm@selenic.com>
parents:
8315
diff
changeset
|
1100 o, d = self._chunkcache |
d593922cf480
revlog: clean up the chunk caching code
Matt Mackall <mpm@selenic.com>
parents:
8315
diff
changeset
|
1101 # try to add to existing cache |
13253 | 1102 if o + len(d) == offset and len(d) + len(data) < _chunksize: |
8316
d593922cf480
revlog: clean up the chunk caching code
Matt Mackall <mpm@selenic.com>
parents:
8315
diff
changeset
|
1103 self._chunkcache = o, d + data |
d593922cf480
revlog: clean up the chunk caching code
Matt Mackall <mpm@selenic.com>
parents:
8315
diff
changeset
|
1104 else: |
d593922cf480
revlog: clean up the chunk caching code
Matt Mackall <mpm@selenic.com>
parents:
8315
diff
changeset
|
1105 self._chunkcache = offset, data |
d593922cf480
revlog: clean up the chunk caching code
Matt Mackall <mpm@selenic.com>
parents:
8315
diff
changeset
|
1106 |
32227
1395f843ece4
revlog: rename internal functions containing "chunk" to use "segment"
Gregory Szorc <gregory.szorc@gmail.com>
parents:
31856
diff
changeset
|
1107 def _readsegment(self, offset, length, df=None): |
27070
7860366b46c9
revlog: improve documentation
Gregory Szorc <gregory.szorc@gmail.com>
parents:
26907
diff
changeset
|
1108 """Load a segment of raw data from the revlog. |
26377
dfef0d3be65e
revlog: support using an existing file handle when reading revlogs
Gregory Szorc <gregory.szorc@gmail.com>
parents:
26376
diff
changeset
|
1109 |
27070
7860366b46c9
revlog: improve documentation
Gregory Szorc <gregory.szorc@gmail.com>
parents:
26907
diff
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1110 Accepts an absolute offset, length to read, and an optional existing |
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1111 file handle to read from. |
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1112 |
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1113 If an existing file handle is passed, it will be seeked and the |
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1114 original seek position will NOT be restored. |
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1115 |
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1116 Returns a str or buffer of raw byte data. |
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1117 """ |
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1118 if df is not None: |
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1119 closehandle = False |
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1120 else: |
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1121 if self._inline: |
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1122 df = self.opener(self.indexfile) |
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1123 else: |
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1124 df = self.opener(self.datafile) |
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1125 closehandle = True |
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1126 |
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1127 # Cache data both forward and backward around the requested |
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1128 # data, in a fixed size window. This helps speed up operations |
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1129 # involving reading the revlog backwards. |
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1130 cachesize = self._chunkcachesize |
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1131 realoffset = offset & ~(cachesize - 1) |
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1132 reallength = (((offset + length + cachesize) & ~(cachesize - 1)) |
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1133 - realoffset) |
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1134 df.seek(realoffset) |
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1135 d = df.read(reallength) |
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1136 if closehandle: |
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1137 df.close() |
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1138 self._cachesegment(realoffset, d) |
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1139 if offset != realoffset or reallength != length: |
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1140 return util.buffer(d, offset - realoffset, length) |
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1141 return d |
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1142 |
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1143 def _getsegment(self, offset, length, df=None): |
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1144 """Obtain a segment of raw data from the revlog. |
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1145 |
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1146 Accepts an absolute offset, length of bytes to obtain, and an |
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1147 optional file handle to the already-opened revlog. If the file |
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1148 handle is used, it's original seek position will not be preserved. |
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1149 |
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1150 Requests for data may be returned from a cache. |
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1151 |
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1152 Returns a str or a buffer instance of raw byte data. |
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1153 """ |
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1154 o, d = self._chunkcache |
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1155 l = len(d) |
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1156 |
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1157 # is it in the cache? |
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1158 cachestart = offset - o |
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1159 cacheend = cachestart + length |
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1160 if cachestart >= 0 and cacheend <= l: |
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1161 if cachestart == 0 and cacheend == l: |
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1162 return d # avoid a copy |
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1163 return util.buffer(d, cachestart, cacheend - cachestart) |
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1164 |
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1165 return self._readsegment(offset, length, df=df) |
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1166 |
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1167 def _getsegmentforrevs(self, startrev, endrev, df=None): |
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1168 """Obtain a segment of raw data corresponding to a range of revisions. |
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1169 |
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1170 Accepts the start and end revisions and an optional already-open |
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1171 file handle to be used for reading. If the file handle is read, its |
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1172 seek position will not be preserved. |
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1173 |
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1174 Requests for data may be satisfied by a cache. |
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1175 |
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1176 Returns a 2-tuple of (offset, data) for the requested range of |
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1177 revisions. Offset is the integer offset from the beginning of the |
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1178 revlog and data is a str or buffer of the raw byte data. |
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1179 |
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1180 Callers will need to call ``self.start(rev)`` and ``self.length(rev)`` |
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1181 to determine where each revision's data begins and ends. |
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1182 """ |
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1183 # Inlined self.start(startrev) & self.end(endrev) for perf reasons |
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1184 # (functions are expensive). |
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1185 index = self.index |
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1186 istart = index[startrev] |
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1187 start = int(istart[0] >> 16) |
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1188 if startrev == endrev: |
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1189 end = start + istart[1] |
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1190 else: |
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1191 iend = index[endrev] |
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1192 end = int(iend[0] >> 16) + iend[1] |
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1193 |
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1194 if self._inline: |
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1195 start += (startrev + 1) * self._io.size |
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1196 end += (endrev + 1) * self._io.size |
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1197 length = end - start |
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1198 |
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1199 return start, self._getsegment(start, length, df=df) |
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1200 |
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1201 def _chunk(self, rev, df=None): |
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1202 """Obtain a single decompressed chunk for a revision. |
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1203 |
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1204 Accepts an integer revision and an optional already-open file handle |
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1205 to be used for reading. If used, the seek position of the file will not |
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1206 be preserved. |
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1207 |
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1208 Returns a str holding uncompressed data for the requested revision. |
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1209 """ |
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1210 return self.decompress(self._getsegmentforrevs(rev, rev, df=df)[1]) |
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1211 |
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1212 def _chunks(self, revs, df=None): |
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1213 """Obtain decompressed chunks for the specified revisions. |
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1214 |
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1215 Accepts an iterable of numeric revisions that are assumed to be in |
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1216 ascending order. Also accepts an optional already-open file handle |
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1217 to be used for reading. If used, the seek position of the file will |
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1218 not be preserved. |
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1219 |
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1220 This function is similar to calling ``self._chunk()`` multiple times, |
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1221 but is faster. |
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1222 |
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1223 Returns a list with decompressed data for each requested revision. |
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1224 """ |
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1225 if not revs: |
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1226 return [] |
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changeset
|
1227 start = self.start |
c2e27e57d250
revlog: add a fast method for getting a list of chunks
Siddharth Agarwal <sid0@fb.com>
parents:
19625
diff
changeset
|
1228 length = self.length |
c2e27e57d250
revlog: add a fast method for getting a list of chunks
Siddharth Agarwal <sid0@fb.com>
parents:
19625
diff
changeset
|
1229 inline = self._inline |
c2e27e57d250
revlog: add a fast method for getting a list of chunks
Siddharth Agarwal <sid0@fb.com>
parents:
19625
diff
changeset
|
1230 iosize = self._io.size |
19715
1aab406be57c
revlog._chunks: inline getchunk
Siddharth Agarwal <sid0@fb.com>
parents:
19714
diff
changeset
|
1231 buffer = util.buffer |
19713
c2e27e57d250
revlog: add a fast method for getting a list of chunks
Siddharth Agarwal <sid0@fb.com>
parents:
19625
diff
changeset
|
1232 |
c2e27e57d250
revlog: add a fast method for getting a list of chunks
Siddharth Agarwal <sid0@fb.com>
parents:
19625
diff
changeset
|
1233 l = [] |
c2e27e57d250
revlog: add a fast method for getting a list of chunks
Siddharth Agarwal <sid0@fb.com>
parents:
19625
diff
changeset
|
1234 ladd = l.append |
c2e27e57d250
revlog: add a fast method for getting a list of chunks
Siddharth Agarwal <sid0@fb.com>
parents:
19625
diff
changeset
|
1235 |
20957
469d949a7cb8
revlog: deal with chunk ranges over 2G on Windows (issue4215)
Matt Mackall <mpm@selenic.com>
parents:
20217
diff
changeset
|
1236 try: |
32229
75e93d95aae6
revlog: rename _chunkraw to _getsegmentforrevs()
Gregory Szorc <gregory.szorc@gmail.com>
parents:
32227
diff
changeset
|
1237 offset, data = self._getsegmentforrevs(revs[0], revs[-1], df=df) |
20957
469d949a7cb8
revlog: deal with chunk ranges over 2G on Windows (issue4215)
Matt Mackall <mpm@selenic.com>
parents:
20217
diff
changeset
|
1238 except OverflowError: |
469d949a7cb8
revlog: deal with chunk ranges over 2G on Windows (issue4215)
Matt Mackall <mpm@selenic.com>
parents:
20217
diff
changeset
|
1239 # issue4215 - we can't cache a run of chunks greater than |
469d949a7cb8
revlog: deal with chunk ranges over 2G on Windows (issue4215)
Matt Mackall <mpm@selenic.com>
parents:
20217
diff
changeset
|
1240 # 2G on Windows |
26377
dfef0d3be65e
revlog: support using an existing file handle when reading revlogs
Gregory Szorc <gregory.szorc@gmail.com>
parents:
26376
diff
changeset
|
1241 return [self._chunk(rev, df=df) for rev in revs] |
19715
1aab406be57c
revlog._chunks: inline getchunk
Siddharth Agarwal <sid0@fb.com>
parents:
19714
diff
changeset
|
1242 |
30793
b6f455a6e4d6
revlog: move decompress() from module to revlog class (API)
Gregory Szorc <gregory.szorc@gmail.com>
parents:
30792
diff
changeset
|
1243 decomp = self.decompress |
19713
c2e27e57d250
revlog: add a fast method for getting a list of chunks
Siddharth Agarwal <sid0@fb.com>
parents:
19625
diff
changeset
|
1244 for rev in revs: |
c2e27e57d250
revlog: add a fast method for getting a list of chunks
Siddharth Agarwal <sid0@fb.com>
parents:
19625
diff
changeset
|
1245 chunkstart = start(rev) |
c2e27e57d250
revlog: add a fast method for getting a list of chunks
Siddharth Agarwal <sid0@fb.com>
parents:
19625
diff
changeset
|
1246 if inline: |
c2e27e57d250
revlog: add a fast method for getting a list of chunks
Siddharth Agarwal <sid0@fb.com>
parents:
19625
diff
changeset
|
1247 chunkstart += (rev + 1) * iosize |
c2e27e57d250
revlog: add a fast method for getting a list of chunks
Siddharth Agarwal <sid0@fb.com>
parents:
19625
diff
changeset
|
1248 chunklength = length(rev) |
30793
b6f455a6e4d6
revlog: move decompress() from module to revlog class (API)
Gregory Szorc <gregory.szorc@gmail.com>
parents:
30792
diff
changeset
|
1249 ladd(decomp(buffer(data, chunkstart - offset, chunklength))) |
19713
c2e27e57d250
revlog: add a fast method for getting a list of chunks
Siddharth Agarwal <sid0@fb.com>
parents:
19625
diff
changeset
|
1250 |
c2e27e57d250
revlog: add a fast method for getting a list of chunks
Siddharth Agarwal <sid0@fb.com>
parents:
19625
diff
changeset
|
1251 return l |
14075
bc101902a68d
revlog: introduce _chunkbase to allow filelog to override
Sune Foldager <cryo@cyanite.org>
parents:
14064
diff
changeset
|
1252 |
8650
ef393d6ec030
revlog: refactor chunk cache interface again
Matt Mackall <mpm@selenic.com>
parents:
8643
diff
changeset
|
1253 def _chunkclear(self): |
27070
7860366b46c9
revlog: improve documentation
Gregory Szorc <gregory.szorc@gmail.com>
parents:
26907
diff
changeset
|
1254 """Clear the raw chunk cache.""" |
8650
ef393d6ec030
revlog: refactor chunk cache interface again
Matt Mackall <mpm@selenic.com>
parents:
8643
diff
changeset
|
1255 self._chunkcache = (0, '') |
1598
14d1f1868bf6
cleanup of revlog.group when repository is local
Benoit Boissinot <benoit.boissinot@ens-lyon.org>
parents:
1559
diff
changeset
|
1256 |
11929
1839a7518b0d
revlog: deltachain() returns chain of revs need to construct a revision
Pradeepkumar Gayam <in3xes@gmail.com>
parents:
11928
diff
changeset
|
1257 def deltaparent(self, rev): |
14195
0013d3eeb826
revlog: remove support for parentdelta
Sune Foldager <cryo@cyanite.org>
parents:
14164
diff
changeset
|
1258 """return deltaparent of the given revision""" |
14253
c28d5200374c
revlog: support reading generaldelta revlogs
Sune Foldager <cryo@cyanite.org>
parents:
14252
diff
changeset
|
1259 base = self.index[rev][3] |
c28d5200374c
revlog: support reading generaldelta revlogs
Sune Foldager <cryo@cyanite.org>
parents:
14252
diff
changeset
|
1260 if base == rev: |
14208
d62d597b8974
revlog: compute correct deltaparent in the deltaparent function
Sune Foldager <cryo@cyanite.org>
parents:
14196
diff
changeset
|
1261 return nullrev |
14253
c28d5200374c
revlog: support reading generaldelta revlogs
Sune Foldager <cryo@cyanite.org>
parents:
14252
diff
changeset
|
1262 elif self._generaldelta: |
c28d5200374c
revlog: support reading generaldelta revlogs
Sune Foldager <cryo@cyanite.org>
parents:
14252
diff
changeset
|
1263 return base |
14208
d62d597b8974
revlog: compute correct deltaparent in the deltaparent function
Sune Foldager <cryo@cyanite.org>
parents:
14196
diff
changeset
|
1264 else: |
d62d597b8974
revlog: compute correct deltaparent in the deltaparent function
Sune Foldager <cryo@cyanite.org>
parents:
14196
diff
changeset
|
1265 return rev - 1 |
11929
1839a7518b0d
revlog: deltachain() returns chain of revs need to construct a revision
Pradeepkumar Gayam <in3xes@gmail.com>
parents:
11928
diff
changeset
|
1266 |
1941
7518823709a2
revlog.py: factorization and fixes for rev < 0 (nullid)
Benoit Boissinot <benoit.boissinot@ens-lyon.org>
parents:
1853
diff
changeset
|
1267 def revdiff(self, rev1, rev2): |
31753
5d11b5edcb0b
revlog: use raw revisions in revdiff
Jun Wu <quark@fb.com>
parents:
31752
diff
changeset
|
1268 """return or calculate a delta between two revisions |
5d11b5edcb0b
revlog: use raw revisions in revdiff
Jun Wu <quark@fb.com>
parents:
31752
diff
changeset
|
1269 |
5d11b5edcb0b
revlog: use raw revisions in revdiff
Jun Wu <quark@fb.com>
parents:
31752
diff
changeset
|
1270 The delta calculated is in binary form and is intended to be written to |
5d11b5edcb0b
revlog: use raw revisions in revdiff
Jun Wu <quark@fb.com>
parents:
31752
diff
changeset
|
1271 revlog data directly. So this function needs raw revision data. |
5d11b5edcb0b
revlog: use raw revisions in revdiff
Jun Wu <quark@fb.com>
parents:
31752
diff
changeset
|
1272 """ |
14208
d62d597b8974
revlog: compute correct deltaparent in the deltaparent function
Sune Foldager <cryo@cyanite.org>
parents:
14196
diff
changeset
|
1273 if rev1 != nullrev and self.deltaparent(rev2) == rev1: |
31369
b6f5af372c0c
revlog: use bytes() instead of str() to get data from memoryview
Augie Fackler <augie@google.com>
parents:
31357
diff
changeset
|
1274 return bytes(self._chunk(rev2)) |
5005
72082bfced9a
revlog: minor revdiff reorganization
Matt Mackall <mpm@selenic.com>
parents:
5004
diff
changeset
|
1275 |
31753
5d11b5edcb0b
revlog: use raw revisions in revdiff
Jun Wu <quark@fb.com>
parents:
31752
diff
changeset
|
1276 return mdiff.textdiff(self.revision(rev1, raw=True), |
5d11b5edcb0b
revlog: use raw revisions in revdiff
Jun Wu <quark@fb.com>
parents:
31752
diff
changeset
|
1277 self.revision(rev2, raw=True)) |
119
c7a66f9752a4
Add code to retrieve or construct a revlog delta
mpm@selenic.com
parents:
117
diff
changeset
|
1278 |
30743
2df983125d37
revlog: add 'raw' argument to revision and _addrevision
Remi Chaintron <remi@fb.com>
parents:
30584
diff
changeset
|
1279 def revision(self, nodeorrev, _df=None, raw=False): |
16435
df347129305d
revlog: fix partial revision() docstring (from d7d64b89a65c)
Patrick Mezard <patrick@mezard.eu>
parents:
16424
diff
changeset
|
1280 """return an uncompressed revision of a given node or revision |
df347129305d
revlog: fix partial revision() docstring (from d7d64b89a65c)
Patrick Mezard <patrick@mezard.eu>
parents:
16424
diff
changeset
|
1281 number. |
26377
dfef0d3be65e
revlog: support using an existing file handle when reading revlogs
Gregory Szorc <gregory.szorc@gmail.com>
parents:
26376
diff
changeset
|
1282 |
30743
2df983125d37
revlog: add 'raw' argument to revision and _addrevision
Remi Chaintron <remi@fb.com>
parents:
30584
diff
changeset
|
1283 _df - an existing file handle to read from. (internal-only) |
2df983125d37
revlog: add 'raw' argument to revision and _addrevision
Remi Chaintron <remi@fb.com>
parents:
30584
diff
changeset
|
1284 raw - an optional argument specifying if the revision data is to be |
2df983125d37
revlog: add 'raw' argument to revision and _addrevision
Remi Chaintron <remi@fb.com>
parents:
30584
diff
changeset
|
1285 treated as raw data when applying flag transforms. 'raw' should be set |
2df983125d37
revlog: add 'raw' argument to revision and _addrevision
Remi Chaintron <remi@fb.com>
parents:
30584
diff
changeset
|
1286 to True when generating changegroups or in debug commands. |
16435
df347129305d
revlog: fix partial revision() docstring (from d7d64b89a65c)
Patrick Mezard <patrick@mezard.eu>
parents:
16424
diff
changeset
|
1287 """ |
16375
d7d64b89a65c
revlog: allow retrieving contents by revision number
Matt Mackall <mpm@selenic.com>
parents:
16374
diff
changeset
|
1288 if isinstance(nodeorrev, int): |
d7d64b89a65c
revlog: allow retrieving contents by revision number
Matt Mackall <mpm@selenic.com>
parents:
16374
diff
changeset
|
1289 rev = nodeorrev |
d7d64b89a65c
revlog: allow retrieving contents by revision number
Matt Mackall <mpm@selenic.com>
parents:
16374
diff
changeset
|
1290 node = self.node(rev) |
d7d64b89a65c
revlog: allow retrieving contents by revision number
Matt Mackall <mpm@selenic.com>
parents:
16374
diff
changeset
|
1291 else: |
d7d64b89a65c
revlog: allow retrieving contents by revision number
Matt Mackall <mpm@selenic.com>
parents:
16374
diff
changeset
|
1292 node = nodeorrev |
d7d64b89a65c
revlog: allow retrieving contents by revision number
Matt Mackall <mpm@selenic.com>
parents:
16374
diff
changeset
|
1293 rev = None |
d7d64b89a65c
revlog: allow retrieving contents by revision number
Matt Mackall <mpm@selenic.com>
parents:
16374
diff
changeset
|
1294 |
11996
3195cf01dfb9
revlog.revision(): don't use nullrev as the default value for the cache
Benoit Boissinot <benoit.boissinot@ens-lyon.org>
parents:
11995
diff
changeset
|
1295 cachedrev = None |
31802
ac9a5e89113a
revlog: avoid calculating "flags" twice in revision()
Jun Wu <quark@fb.com>
parents:
31801
diff
changeset
|
1296 flags = None |
31804
726f24123f02
revlog: avoid applying delta chain on cache hit
Jun Wu <quark@fb.com>
parents:
31803
diff
changeset
|
1297 rawtext = None |
4980
fc44c8df9d99
revlog: some codingstyle cleanups
Matt Mackall <mpm@selenic.com>
parents:
4979
diff
changeset
|
1298 if node == nullid: |
fc44c8df9d99
revlog: some codingstyle cleanups
Matt Mackall <mpm@selenic.com>
parents:
4979
diff
changeset
|
1299 return "" |
26242
d708873f1f33
revlog: drop local assignment of cache variable
Gregory Szorc <gregory.szorc@gmail.com>
parents:
26241
diff
changeset
|
1300 if self._cache: |
d708873f1f33
revlog: drop local assignment of cache variable
Gregory Szorc <gregory.szorc@gmail.com>
parents:
26241
diff
changeset
|
1301 if self._cache[0] == node: |
31751
2133437dad17
revlog: fix _cache usage in revision()
Jun Wu <quark@fb.com>
parents:
31750
diff
changeset
|
1302 # _cache only stores rawtext |
2133437dad17
revlog: fix _cache usage in revision()
Jun Wu <quark@fb.com>
parents:
31750
diff
changeset
|
1303 if raw: |
2133437dad17
revlog: fix _cache usage in revision()
Jun Wu <quark@fb.com>
parents:
31750
diff
changeset
|
1304 return self._cache[2] |
31756
9ec03d5af48f
revlog: add a fast path for revision(raw=False)
Jun Wu <quark@fb.com>
parents:
31755
diff
changeset
|
1305 # duplicated, but good for perf |
9ec03d5af48f
revlog: add a fast path for revision(raw=False)
Jun Wu <quark@fb.com>
parents:
31755
diff
changeset
|
1306 if rev is None: |
9ec03d5af48f
revlog: add a fast path for revision(raw=False)
Jun Wu <quark@fb.com>
parents:
31755
diff
changeset
|
1307 rev = self.rev(node) |
31802
ac9a5e89113a
revlog: avoid calculating "flags" twice in revision()
Jun Wu <quark@fb.com>
parents:
31801
diff
changeset
|
1308 if flags is None: |
ac9a5e89113a
revlog: avoid calculating "flags" twice in revision()
Jun Wu <quark@fb.com>
parents:
31801
diff
changeset
|
1309 flags = self.flags(rev) |
31756
9ec03d5af48f
revlog: add a fast path for revision(raw=False)
Jun Wu <quark@fb.com>
parents:
31755
diff
changeset
|
1310 # no extra flags set, no flag processor runs, text = rawtext |
31802
ac9a5e89113a
revlog: avoid calculating "flags" twice in revision()
Jun Wu <quark@fb.com>
parents:
31801
diff
changeset
|
1311 if flags == REVIDX_DEFAULT_FLAGS: |
31756
9ec03d5af48f
revlog: add a fast path for revision(raw=False)
Jun Wu <quark@fb.com>
parents:
31755
diff
changeset
|
1312 return self._cache[2] |
31804
726f24123f02
revlog: avoid applying delta chain on cache hit
Jun Wu <quark@fb.com>
parents:
31803
diff
changeset
|
1313 # rawtext is reusable. need to run flag processor |
726f24123f02
revlog: avoid applying delta chain on cache hit
Jun Wu <quark@fb.com>
parents:
31803
diff
changeset
|
1314 rawtext = self._cache[2] |
31756
9ec03d5af48f
revlog: add a fast path for revision(raw=False)
Jun Wu <quark@fb.com>
parents:
31755
diff
changeset
|
1315 |
26242
d708873f1f33
revlog: drop local assignment of cache variable
Gregory Szorc <gregory.szorc@gmail.com>
parents:
26241
diff
changeset
|
1316 cachedrev = self._cache[1] |
0
9117c6561b0b
Add back links from file revisions to changeset revisions
mpm@selenic.com
parents:
diff
changeset
|
1317 |
1083 | 1318 # look up what we need to read |
31803
2be73f9720a8
revlog: indent block to make review easier
Jun Wu <quark@fb.com>
parents:
31802
diff
changeset
|
1319 if rawtext is None: |
2be73f9720a8
revlog: indent block to make review easier
Jun Wu <quark@fb.com>
parents:
31802
diff
changeset
|
1320 if rev is None: |
2be73f9720a8
revlog: indent block to make review easier
Jun Wu <quark@fb.com>
parents:
31802
diff
changeset
|
1321 rev = self.rev(node) |
0
9117c6561b0b
Add back links from file revisions to changeset revisions
mpm@selenic.com
parents:
diff
changeset
|
1322 |
31803
2be73f9720a8
revlog: indent block to make review easier
Jun Wu <quark@fb.com>
parents:
31802
diff
changeset
|
1323 chain, stopped = self._deltachain(rev, stoprev=cachedrev) |
2be73f9720a8
revlog: indent block to make review easier
Jun Wu <quark@fb.com>
parents:
31802
diff
changeset
|
1324 if stopped: |
2be73f9720a8
revlog: indent block to make review easier
Jun Wu <quark@fb.com>
parents:
31802
diff
changeset
|
1325 rawtext = self._cache[2] |
0
9117c6561b0b
Add back links from file revisions to changeset revisions
mpm@selenic.com
parents:
diff
changeset
|
1326 |
31803
2be73f9720a8
revlog: indent block to make review easier
Jun Wu <quark@fb.com>
parents:
31802
diff
changeset
|
1327 # drop cache to save memory |
2be73f9720a8
revlog: indent block to make review easier
Jun Wu <quark@fb.com>
parents:
31802
diff
changeset
|
1328 self._cache = None |
11754
6ccd130eab0e
revlog: drop cache after use to save memory footprint
Matt Mackall <mpm@selenic.com>
parents:
11539
diff
changeset
|
1329 |
31803
2be73f9720a8
revlog: indent block to make review easier
Jun Wu <quark@fb.com>
parents:
31802
diff
changeset
|
1330 bins = self._chunks(chain, df=_df) |
2be73f9720a8
revlog: indent block to make review easier
Jun Wu <quark@fb.com>
parents:
31802
diff
changeset
|
1331 if rawtext is None: |
2be73f9720a8
revlog: indent block to make review easier
Jun Wu <quark@fb.com>
parents:
31802
diff
changeset
|
1332 rawtext = bytes(bins[0]) |
2be73f9720a8
revlog: indent block to make review easier
Jun Wu <quark@fb.com>
parents:
31802
diff
changeset
|
1333 bins = bins[1:] |
8650
ef393d6ec030
revlog: refactor chunk cache interface again
Matt Mackall <mpm@selenic.com>
parents:
8643
diff
changeset
|
1334 |
31803
2be73f9720a8
revlog: indent block to make review easier
Jun Wu <quark@fb.com>
parents:
31802
diff
changeset
|
1335 rawtext = mdiff.patches(rawtext, bins) |
31804
726f24123f02
revlog: avoid applying delta chain on cache hit
Jun Wu <quark@fb.com>
parents:
31803
diff
changeset
|
1336 self._cache = (node, rev, rawtext) |
30745 | 1337 |
31802
ac9a5e89113a
revlog: avoid calculating "flags" twice in revision()
Jun Wu <quark@fb.com>
parents:
31801
diff
changeset
|
1338 if flags is None: |
31804
726f24123f02
revlog: avoid applying delta chain on cache hit
Jun Wu <quark@fb.com>
parents:
31803
diff
changeset
|
1339 if rev is None: |
726f24123f02
revlog: avoid applying delta chain on cache hit
Jun Wu <quark@fb.com>
parents:
31803
diff
changeset
|
1340 rev = self.rev(node) |
31802
ac9a5e89113a
revlog: avoid calculating "flags" twice in revision()
Jun Wu <quark@fb.com>
parents:
31801
diff
changeset
|
1341 flags = self.flags(rev) |
ac9a5e89113a
revlog: avoid calculating "flags" twice in revision()
Jun Wu <quark@fb.com>
parents:
31801
diff
changeset
|
1342 |
ac9a5e89113a
revlog: avoid calculating "flags" twice in revision()
Jun Wu <quark@fb.com>
parents:
31801
diff
changeset
|
1343 text, validatehash = self._processflags(rawtext, flags, 'read', raw=raw) |
30745 | 1344 if validatehash: |
1345 self.checkhash(text, node, rev=rev) | |
1346 | |
13239
12ed25f39d0b
revlog: break hash checking into subfunction
Matt Mackall <mpm@selenic.com>
parents:
13031
diff
changeset
|
1347 return text |
12ed25f39d0b
revlog: break hash checking into subfunction
Matt Mackall <mpm@selenic.com>
parents:
13031
diff
changeset
|
1348 |
22785
abc44fcc9c57
revlog: move references to revlog.hash to inside the revlog class
Augie Fackler <raf@durin42.com>
parents:
22784
diff
changeset
|
1349 def hash(self, text, p1, p2): |
abc44fcc9c57
revlog: move references to revlog.hash to inside the revlog class
Augie Fackler <raf@durin42.com>
parents:
22784
diff
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|
1350 """Compute a node hash. |
abc44fcc9c57
revlog: move references to revlog.hash to inside the revlog class
Augie Fackler <raf@durin42.com>
parents:
22784
diff
changeset
|
1351 |
abc44fcc9c57
revlog: move references to revlog.hash to inside the revlog class
Augie Fackler <raf@durin42.com>
parents:
22784
diff
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|
1352 Available as a function so that subclasses can replace the hash |
abc44fcc9c57
revlog: move references to revlog.hash to inside the revlog class
Augie Fackler <raf@durin42.com>
parents:
22784
diff
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|
1353 as needed. |
abc44fcc9c57
revlog: move references to revlog.hash to inside the revlog class
Augie Fackler <raf@durin42.com>
parents:
22784
diff
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|
1354 """ |
abc44fcc9c57
revlog: move references to revlog.hash to inside the revlog class
Augie Fackler <raf@durin42.com>
parents:
22784
diff
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|
1355 return hash(text, p1, p2) |
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Augie Fackler <raf@durin42.com>
parents:
22784
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|
1356 |
30745 | 1357 def _processflags(self, text, flags, operation, raw=False): |
1358 """Inspect revision data flags and applies transforms defined by | |
1359 registered flag processors. | |
1360 | |
1361 ``text`` - the revision data to process | |
1362 ``flags`` - the revision flags | |
1363 ``operation`` - the operation being performed (read or write) | |
1364 ``raw`` - an optional argument describing if the raw transform should be | |
1365 applied. | |
1366 | |
1367 This method processes the flags in the order (or reverse order if | |
1368 ``operation`` is 'write') defined by REVIDX_FLAGS_ORDER, applying the | |
1369 flag processors registered for present flags. The order of flags defined | |
1370 in REVIDX_FLAGS_ORDER needs to be stable to allow non-commutativity. | |
1371 | |
1372 Returns a 2-tuple of ``(text, validatehash)`` where ``text`` is the | |
1373 processed text and ``validatehash`` is a bool indicating whether the | |
1374 returned text should be checked for hash integrity. | |
1375 | |
1376 Note: If the ``raw`` argument is set, it has precedence over the | |
1377 operation and will only update the value of ``validatehash``. | |
1378 """ | |
32286
539cbe0f8fa3
flagprocessor: add a fast path when flags is 0
Jun Wu <quark@fb.com>
parents:
32244
diff
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|
1379 # fast path: no flag processors will run |
539cbe0f8fa3
flagprocessor: add a fast path when flags is 0
Jun Wu <quark@fb.com>
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diff
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|
1380 if flags == 0: |
539cbe0f8fa3
flagprocessor: add a fast path when flags is 0
Jun Wu <quark@fb.com>
parents:
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|
1381 return text, True |
30745 | 1382 if not operation in ('read', 'write'): |
1383 raise ProgrammingError(_("invalid '%s' operation ") % (operation)) | |
1384 # Check all flags are known. | |
1385 if flags & ~REVIDX_KNOWN_FLAGS: | |
1386 raise RevlogError(_("incompatible revision flag '%#x'") % | |
1387 (flags & ~REVIDX_KNOWN_FLAGS)) | |
1388 validatehash = True | |
1389 # Depending on the operation (read or write), the order might be | |
1390 # reversed due to non-commutative transforms. | |
1391 orderedflags = REVIDX_FLAGS_ORDER | |
1392 if operation == 'write': | |
1393 orderedflags = reversed(orderedflags) | |
1394 | |
1395 for flag in orderedflags: | |
1396 # If a flagprocessor has been registered for a known flag, apply the | |
1397 # related operation transform and update result tuple. | |
1398 if flag & flags: | |
1399 vhash = True | |
1400 | |
1401 if flag not in _flagprocessors: | |
1402 message = _("missing processor for flag '%#x'") % (flag) | |
1403 raise RevlogError(message) | |
1404 | |
1405 processor = _flagprocessors[flag] | |
1406 if processor is not None: | |
1407 readtransform, writetransform, rawtransform = processor | |
1408 | |
1409 if raw: | |
1410 vhash = rawtransform(self, text) | |
1411 elif operation == 'read': | |
1412 text, vhash = readtransform(self, text) | |
1413 else: # write operation | |
1414 text, vhash = writetransform(self, text) | |
1415 validatehash = validatehash and vhash | |
1416 | |
1417 return text, validatehash | |
1418 | |
30584
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revlog: merge hash checking subfunctions
Remi Chaintron <remi@fb.com>
parents:
30543
diff
changeset
|
1419 def checkhash(self, text, node, p1=None, p2=None, rev=None): |
be5b2098a817
revlog: merge hash checking subfunctions
Remi Chaintron <remi@fb.com>
parents:
30543
diff
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|
1420 """Check node hash integrity. |
19624
55749cb14d24
revlog: extract 'checkhash' method
Wojciech Lopata <lopek@fb.com>
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diff
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|
1421 |
30584
be5b2098a817
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Remi Chaintron <remi@fb.com>
parents:
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diff
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|
1422 Available as a function so that subclasses can extend hash mismatch |
be5b2098a817
revlog: merge hash checking subfunctions
Remi Chaintron <remi@fb.com>
parents:
30543
diff
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|
1423 behaviors as needed. |
be5b2098a817
revlog: merge hash checking subfunctions
Remi Chaintron <remi@fb.com>
parents:
30543
diff
changeset
|
1424 """ |
be5b2098a817
revlog: merge hash checking subfunctions
Remi Chaintron <remi@fb.com>
parents:
30543
diff
changeset
|
1425 if p1 is None and p2 is None: |
be5b2098a817
revlog: merge hash checking subfunctions
Remi Chaintron <remi@fb.com>
parents:
30543
diff
changeset
|
1426 p1, p2 = self.parents(node) |
22785
abc44fcc9c57
revlog: move references to revlog.hash to inside the revlog class
Augie Fackler <raf@durin42.com>
parents:
22784
diff
changeset
|
1427 if node != self.hash(text, p1, p2): |
19624
55749cb14d24
revlog: extract 'checkhash' method
Wojciech Lopata <lopek@fb.com>
parents:
19471
diff
changeset
|
1428 revornode = rev |
55749cb14d24
revlog: extract 'checkhash' method
Wojciech Lopata <lopek@fb.com>
parents:
19471
diff
changeset
|
1429 if revornode is None: |
55749cb14d24
revlog: extract 'checkhash' method
Wojciech Lopata <lopek@fb.com>
parents:
19471
diff
changeset
|
1430 revornode = templatefilters.short(hex(node)) |
55749cb14d24
revlog: extract 'checkhash' method
Wojciech Lopata <lopek@fb.com>
parents:
19471
diff
changeset
|
1431 raise RevlogError(_("integrity check failed on %s:%s") |
55749cb14d24
revlog: extract 'checkhash' method
Wojciech Lopata <lopek@fb.com>
parents:
19471
diff
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|
1432 % (self.indexfile, revornode)) |
0
9117c6561b0b
Add back links from file revisions to changeset revisions
mpm@selenic.com
parents:
diff
changeset
|
1433 |
2075
343aeefb553b
Make the appendfile class inline-data index friendly
mason@suse.com
parents:
2073
diff
changeset
|
1434 def checkinlinesize(self, tr, fp=None): |
26376
344a1621674b
revlog: add docstring for checkinlinesize()
Gregory Szorc <gregory.szorc@gmail.com>
parents:
26243
diff
changeset
|
1435 """Check if the revlog is too big for inline and convert if so. |
344a1621674b
revlog: add docstring for checkinlinesize()
Gregory Szorc <gregory.szorc@gmail.com>
parents:
26243
diff
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|
1436 |
344a1621674b
revlog: add docstring for checkinlinesize()
Gregory Szorc <gregory.szorc@gmail.com>
parents:
26243
diff
changeset
|
1437 This should be called after revisions are added to the revlog. If the |
344a1621674b
revlog: add docstring for checkinlinesize()
Gregory Szorc <gregory.szorc@gmail.com>
parents:
26243
diff
changeset
|
1438 revlog has grown too large to be an inline revlog, it will convert it |
344a1621674b
revlog: add docstring for checkinlinesize()
Gregory Szorc <gregory.szorc@gmail.com>
parents:
26243
diff
changeset
|
1439 to use multiple index and data files. |
344a1621674b
revlog: add docstring for checkinlinesize()
Gregory Szorc <gregory.szorc@gmail.com>
parents:
26243
diff
changeset
|
1440 """ |
10913
f2ecc5733c89
revlog: factor out _maxinline global.
Greg Ward <greg-hg@gerg.ca>
parents:
10404
diff
changeset
|
1441 if not self._inline or (self.start(-2) + self.length(-2)) < _maxinline: |
2073 | 1442 return |
8315
c8493310ad9b
revlog: use index to find index size
Matt Mackall <mpm@selenic.com>
parents:
8314
diff
changeset
|
1443 |
2084 | 1444 trinfo = tr.find(self.indexfile) |
8527
f9a80054dd3c
use 'x is None' instead of 'x == None'
Martin Geisler <mg@lazybytes.net>
parents:
8464
diff
changeset
|
1445 if trinfo is None: |
3680
69cf255a55a1
Indentation cleanups for 2956948b81f3.
Thomas Arendsen Hein <thomas@intevation.de>
parents:
3679
diff
changeset
|
1446 raise RevlogError(_("%s not found in the transaction") |
69cf255a55a1
Indentation cleanups for 2956948b81f3.
Thomas Arendsen Hein <thomas@intevation.de>
parents:
3679
diff
changeset
|
1447 % self.indexfile) |
2084 | 1448 |
1449 trindex = trinfo[2] | |
24454
59904edf0a5e
revlog: make converting from inline to non-line work after a strip
Mike Edgar <adgar@google.com>
parents:
24444
diff
changeset
|
1450 if trindex is not None: |
59904edf0a5e
revlog: make converting from inline to non-line work after a strip
Mike Edgar <adgar@google.com>
parents:
24444
diff
changeset
|
1451 dataoff = self.start(trindex) |
59904edf0a5e
revlog: make converting from inline to non-line work after a strip
Mike Edgar <adgar@google.com>
parents:
24444
diff
changeset
|
1452 else: |
59904edf0a5e
revlog: make converting from inline to non-line work after a strip
Mike Edgar <adgar@google.com>
parents:
24444
diff
changeset
|
1453 # revlog was stripped at start of transaction, use all leftover data |
59904edf0a5e
revlog: make converting from inline to non-line work after a strip
Mike Edgar <adgar@google.com>
parents:
24444
diff
changeset
|
1454 trindex = len(self) - 1 |
59904edf0a5e
revlog: make converting from inline to non-line work after a strip
Mike Edgar <adgar@google.com>
parents:
24444
diff
changeset
|
1455 dataoff = self.end(-2) |
2084 | 1456 |
1457 tr.add(self.datafile, dataoff) | |
8315
c8493310ad9b
revlog: use index to find index size
Matt Mackall <mpm@selenic.com>
parents:
8314
diff
changeset
|
1458 |
8317
5cdf4067857a
revlog: use chunk cache to avoid rereading when splitting inline files
Matt Mackall <mpm@selenic.com>
parents:
8316
diff
changeset
|
1459 if fp: |
5cdf4067857a
revlog: use chunk cache to avoid rereading when splitting inline files
Matt Mackall <mpm@selenic.com>
parents:
8316
diff
changeset
|
1460 fp.flush() |
5cdf4067857a
revlog: use chunk cache to avoid rereading when splitting inline files
Matt Mackall <mpm@selenic.com>
parents:
8316
diff
changeset
|
1461 fp.close() |
8315
c8493310ad9b
revlog: use index to find index size
Matt Mackall <mpm@selenic.com>
parents:
8314
diff
changeset
|
1462 |
2073 | 1463 df = self.opener(self.datafile, 'w') |
6261
7c8101b5ceb1
revlog: make sure the files are closed after an exception happens
Benoit Boissinot <benoit.boissinot@ens-lyon.org>
parents:
6228
diff
changeset
|
1464 try: |
6750
fb42030d79d6
add __len__ and __iter__ methods to repo and revlog
Matt Mackall <mpm@selenic.com>
parents:
6703
diff
changeset
|
1465 for r in self: |
32229
75e93d95aae6
revlog: rename _chunkraw to _getsegmentforrevs()
Gregory Szorc <gregory.szorc@gmail.com>
parents:
32227
diff
changeset
|
1466 df.write(self._getsegmentforrevs(r, r)[1]) |
6261
7c8101b5ceb1
revlog: make sure the files are closed after an exception happens
Benoit Boissinot <benoit.boissinot@ens-lyon.org>
parents:
6228
diff
changeset
|
1467 finally: |
7c8101b5ceb1
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Benoit Boissinot <benoit.boissinot@ens-lyon.org>
parents:
6228
diff
changeset
|
1468 df.close() |
7c8101b5ceb1
revlog: make sure the files are closed after an exception happens
Benoit Boissinot <benoit.boissinot@ens-lyon.org>
parents:
6228
diff
changeset
|
1469 |
29997
b5e5ddf48bd2
revlog: specify checkambig at writing to avoid file stat ambiguity
FUJIWARA Katsunori <foozy@lares.dti.ne.jp>
parents:
29830
diff
changeset
|
1470 fp = self.opener(self.indexfile, 'w', atomictemp=True, |
b5e5ddf48bd2
revlog: specify checkambig at writing to avoid file stat ambiguity
FUJIWARA Katsunori <foozy@lares.dti.ne.jp>
parents:
29830
diff
changeset
|
1471 checkambig=self._checkambig) |
32315
67026d65a4fc
revlog: rename constants (API)
Gregory Szorc <gregory.szorc@gmail.com>
parents:
32307
diff
changeset
|
1472 self.version &= ~FLAG_INLINE_DATA |
4982
9672e3c42b0c
revlog: change _inline from a function to a variable
Matt Mackall <mpm@selenic.com>
parents:
4981
diff
changeset
|
1473 self._inline = False |
6750
fb42030d79d6
add __len__ and __iter__ methods to repo and revlog
Matt Mackall <mpm@selenic.com>
parents:
6703
diff
changeset
|
1474 for i in self: |
5338
f87685355c9c
revlog: fix revlogio.packentry corner case
Alexis S. L. Carvalho <alexis@cecm.usp.br>
parents:
5325
diff
changeset
|
1475 e = self._io.packentry(self.index[i], self.node, self.version, i) |
2073 | 1476 fp.write(e) |
1477 | |
15057
774da7121fc9
atomictempfile: make close() consistent with other file-like objects.
Greg Ward <greg@gerg.ca>
parents:
14960
diff
changeset
|
1478 # if we don't call close, the temp file will never replace the |
2076
d007df6daf8e
Create an atomic opener that does not automatically rename on close
mason@suse.com
parents:
2075
diff
changeset
|
1479 # real index |
15057
774da7121fc9
atomictempfile: make close() consistent with other file-like objects.
Greg Ward <greg@gerg.ca>
parents:
14960
diff
changeset
|
1480 fp.close() |
2084 | 1481 |
8650
ef393d6ec030
revlog: refactor chunk cache interface again
Matt Mackall <mpm@selenic.com>
parents:
8643
diff
changeset
|
1482 tr.replace(self.indexfile, trindex * self._io.size) |
ef393d6ec030
revlog: refactor chunk cache interface again
Matt Mackall <mpm@selenic.com>
parents:
8643
diff
changeset
|
1483 self._chunkclear() |
2073 | 1484 |
19625
6a411a06cb1f
revlog: pass node as an argument of addrevision
Wojciech Lopata <lopek@fb.com>
parents:
19624
diff
changeset
|
1485 def addrevision(self, text, transaction, link, p1, p2, cachedelta=None, |
30744
e12c0fa1f65b
revlog: pass revlog flags to addrevision
Remi Chaintron <remi@fb.com>
parents:
30743
diff
changeset
|
1486 node=None, flags=REVIDX_DEFAULT_FLAGS): |
1083 | 1487 """add a revision to the log |
1488 | |
1489 text - the revision data to add | |
1490 transaction - the transaction object used for rollback | |
1491 link - the linkrev data to add | |
1492 p1, p2 - the parent nodeids of the revision | |
12012
bade7a9c5c07
revlog: fix docstring
Benoit Boissinot <benoit.boissinot@ens-lyon.org>
parents:
12011
diff
changeset
|
1493 cachedelta - an optional precomputed delta |
19625
6a411a06cb1f
revlog: pass node as an argument of addrevision
Wojciech Lopata <lopek@fb.com>
parents:
19624
diff
changeset
|
1494 node - nodeid of revision; typically node is not specified, and it is |
6a411a06cb1f
revlog: pass node as an argument of addrevision
Wojciech Lopata <lopek@fb.com>
parents:
19624
diff
changeset
|
1495 computed by default as hash(text, p1, p2), however subclasses might |
6a411a06cb1f
revlog: pass node as an argument of addrevision
Wojciech Lopata <lopek@fb.com>
parents:
19624
diff
changeset
|
1496 use different hashing method (and override checkhash() in such case) |
30744
e12c0fa1f65b
revlog: pass revlog flags to addrevision
Remi Chaintron <remi@fb.com>
parents:
30743
diff
changeset
|
1497 flags - the known flags to set on the revision |
1083 | 1498 """ |
19326
7014526d67a8
revlog: add exception when linkrev == nullrev
Durham Goode <durham@fb.com>
parents:
19200
diff
changeset
|
1499 if link == nullrev: |
7014526d67a8
revlog: add exception when linkrev == nullrev
Durham Goode <durham@fb.com>
parents:
19200
diff
changeset
|
1500 raise RevlogError(_("attempted to add linkrev -1 to %s") |
7014526d67a8
revlog: add exception when linkrev == nullrev
Durham Goode <durham@fb.com>
parents:
19200
diff
changeset
|
1501 % self.indexfile) |
25459
0bda5bfaf0b1
revlog: move size limit check to addrevision
Matt Mackall <mpm@selenic.com>
parents:
25410
diff
changeset
|
1502 |
30745 | 1503 if flags: |
1504 node = node or self.hash(text, p1, p2) | |
1505 | |
31750
f319981c24c9
revlog: rename some "text"s to "rawtext"
Jun Wu <quark@fb.com>
parents:
31749
diff
changeset
|
1506 rawtext, validatehash = self._processflags(text, flags, 'write') |
30745 | 1507 |
1508 # If the flag processor modifies the revision data, ignore any provided | |
1509 # cachedelta. | |
31750
f319981c24c9
revlog: rename some "text"s to "rawtext"
Jun Wu <quark@fb.com>
parents:
31749
diff
changeset
|
1510 if rawtext != text: |
30745 | 1511 cachedelta = None |
1512 | |
31750
f319981c24c9
revlog: rename some "text"s to "rawtext"
Jun Wu <quark@fb.com>
parents:
31749
diff
changeset
|
1513 if len(rawtext) > _maxentrysize: |
25459
0bda5bfaf0b1
revlog: move size limit check to addrevision
Matt Mackall <mpm@selenic.com>
parents:
25410
diff
changeset
|
1514 raise RevlogError( |
0bda5bfaf0b1
revlog: move size limit check to addrevision
Matt Mackall <mpm@selenic.com>
parents:
25410
diff
changeset
|
1515 _("%s: size of %d bytes exceeds maximum revlog storage of 2GiB") |
31750
f319981c24c9
revlog: rename some "text"s to "rawtext"
Jun Wu <quark@fb.com>
parents:
31749
diff
changeset
|
1516 % (self.indexfile, len(rawtext))) |
25459
0bda5bfaf0b1
revlog: move size limit check to addrevision
Matt Mackall <mpm@selenic.com>
parents:
25410
diff
changeset
|
1517 |
31750
f319981c24c9
revlog: rename some "text"s to "rawtext"
Jun Wu <quark@fb.com>
parents:
31749
diff
changeset
|
1518 node = node or self.hash(rawtext, p1, p2) |
14196
e7483ec3c374
revlog: remove support for punched/shallow
Sune Foldager <cryo@cyanite.org>
parents:
14195
diff
changeset
|
1519 if node in self.nodemap: |
12023
44c22dc193a4
revlog.addrevision(): move computation of nodeid in addrevision()
Benoit Boissinot <benoit.boissinot@ens-lyon.org>
parents:
12012
diff
changeset
|
1520 return node |
44c22dc193a4
revlog.addrevision(): move computation of nodeid in addrevision()
Benoit Boissinot <benoit.boissinot@ens-lyon.org>
parents:
12012
diff
changeset
|
1521 |
30745 | 1522 if validatehash: |
31750
f319981c24c9
revlog: rename some "text"s to "rawtext"
Jun Wu <quark@fb.com>
parents:
31749
diff
changeset
|
1523 self.checkhash(rawtext, node, p1=p1, p2=p2) |
30745 | 1524 |
32244
3de4c61b5087
revlog: move part of "addrevision" to "addrawrevision"
Jun Wu <quark@fb.com>
parents:
32229
diff
changeset
|
1525 return self.addrawrevision(rawtext, transaction, link, p1, p2, node, |
3de4c61b5087
revlog: move part of "addrevision" to "addrawrevision"
Jun Wu <quark@fb.com>
parents:
32229
diff
changeset
|
1526 flags, cachedelta=cachedelta) |
3de4c61b5087
revlog: move part of "addrevision" to "addrawrevision"
Jun Wu <quark@fb.com>
parents:
32229
diff
changeset
|
1527 |
3de4c61b5087
revlog: move part of "addrevision" to "addrawrevision"
Jun Wu <quark@fb.com>
parents:
32229
diff
changeset
|
1528 def addrawrevision(self, rawtext, transaction, link, p1, p2, node, flags, |
3de4c61b5087
revlog: move part of "addrevision" to "addrawrevision"
Jun Wu <quark@fb.com>
parents:
32229
diff
changeset
|
1529 cachedelta=None): |
3de4c61b5087
revlog: move part of "addrevision" to "addrawrevision"
Jun Wu <quark@fb.com>
parents:
32229
diff
changeset
|
1530 """add a raw revision with known flags, node and parents |
3de4c61b5087
revlog: move part of "addrevision" to "addrawrevision"
Jun Wu <quark@fb.com>
parents:
32229
diff
changeset
|
1531 useful when reusing a revision not stored in this revlog (ex: received |
3de4c61b5087
revlog: move part of "addrevision" to "addrawrevision"
Jun Wu <quark@fb.com>
parents:
32229
diff
changeset
|
1532 over wire, or read from an external bundle). |
3de4c61b5087
revlog: move part of "addrevision" to "addrawrevision"
Jun Wu <quark@fb.com>
parents:
32229
diff
changeset
|
1533 """ |
4981
e7131935fbb3
revlog: simplify addrevision
Matt Mackall <mpm@selenic.com>
parents:
4980
diff
changeset
|
1534 dfh = None |
4982
9672e3c42b0c
revlog: change _inline from a function to a variable
Matt Mackall <mpm@selenic.com>
parents:
4981
diff
changeset
|
1535 if not self._inline: |
26378
e749707f0afb
revlog: always open revlogs for reading and appending
Gregory Szorc <gregory.szorc@gmail.com>
parents:
26377
diff
changeset
|
1536 dfh = self.opener(self.datafile, "a+") |
29997
b5e5ddf48bd2
revlog: specify checkambig at writing to avoid file stat ambiguity
FUJIWARA Katsunori <foozy@lares.dti.ne.jp>
parents:
29830
diff
changeset
|
1537 ifh = self.opener(self.indexfile, "a+", checkambig=self._checkambig) |
6261
7c8101b5ceb1
revlog: make sure the files are closed after an exception happens
Benoit Boissinot <benoit.boissinot@ens-lyon.org>
parents:
6228
diff
changeset
|
1538 try: |
31750
f319981c24c9
revlog: rename some "text"s to "rawtext"
Jun Wu <quark@fb.com>
parents:
31749
diff
changeset
|
1539 return self._addrevision(node, rawtext, transaction, link, p1, p2, |
30744
e12c0fa1f65b
revlog: pass revlog flags to addrevision
Remi Chaintron <remi@fb.com>
parents:
30743
diff
changeset
|
1540 flags, cachedelta, ifh, dfh) |
6261
7c8101b5ceb1
revlog: make sure the files are closed after an exception happens
Benoit Boissinot <benoit.boissinot@ens-lyon.org>
parents:
6228
diff
changeset
|
1541 finally: |
7c8101b5ceb1
revlog: make sure the files are closed after an exception happens
Benoit Boissinot <benoit.boissinot@ens-lyon.org>
parents:
6228
diff
changeset
|
1542 if dfh: |
7c8101b5ceb1
revlog: make sure the files are closed after an exception happens
Benoit Boissinot <benoit.boissinot@ens-lyon.org>
parents:
6228
diff
changeset
|
1543 dfh.close() |
7c8101b5ceb1
revlog: make sure the files are closed after an exception happens
Benoit Boissinot <benoit.boissinot@ens-lyon.org>
parents:
6228
diff
changeset
|
1544 ifh.close() |
3390
a74addddd092
make revlog.addgroup pass its file handles to addrevision
Alexis S. L. Carvalho <alexis@cecm.usp.br>
parents:
3360
diff
changeset
|
1545 |
30795
78ac56aebab6
revlog: use compression engine API for compression
Gregory Szorc <gregory.szorc@gmail.com>
parents:
30793
diff
changeset
|
1546 def compress(self, data): |
78ac56aebab6
revlog: use compression engine API for compression
Gregory Szorc <gregory.szorc@gmail.com>
parents:
30793
diff
changeset
|
1547 """Generate a possibly-compressed representation of data.""" |
78ac56aebab6
revlog: use compression engine API for compression
Gregory Szorc <gregory.szorc@gmail.com>
parents:
30793
diff
changeset
|
1548 if not data: |
78ac56aebab6
revlog: use compression engine API for compression
Gregory Szorc <gregory.szorc@gmail.com>
parents:
30793
diff
changeset
|
1549 return '', data |
78ac56aebab6
revlog: use compression engine API for compression
Gregory Szorc <gregory.szorc@gmail.com>
parents:
30793
diff
changeset
|
1550 |
78ac56aebab6
revlog: use compression engine API for compression
Gregory Szorc <gregory.szorc@gmail.com>
parents:
30793
diff
changeset
|
1551 compressed = self._compressor.compress(data) |
78ac56aebab6
revlog: use compression engine API for compression
Gregory Szorc <gregory.szorc@gmail.com>
parents:
30793
diff
changeset
|
1552 |
78ac56aebab6
revlog: use compression engine API for compression
Gregory Szorc <gregory.szorc@gmail.com>
parents:
30793
diff
changeset
|
1553 if compressed: |
78ac56aebab6
revlog: use compression engine API for compression
Gregory Szorc <gregory.szorc@gmail.com>
parents:
30793
diff
changeset
|
1554 # The revlog compressor added the header in the returned data. |
78ac56aebab6
revlog: use compression engine API for compression
Gregory Szorc <gregory.szorc@gmail.com>
parents:
30793
diff
changeset
|
1555 return '', compressed |
78ac56aebab6
revlog: use compression engine API for compression
Gregory Szorc <gregory.szorc@gmail.com>
parents:
30793
diff
changeset
|
1556 |
31643
6ceb3c4c3ab6
py3: fix slicing of byte string in revlog.compress()
Yuya Nishihara <yuya@tcha.org>
parents:
31574
diff
changeset
|
1557 if data[0:1] == '\0': |
30795
78ac56aebab6
revlog: use compression engine API for compression
Gregory Szorc <gregory.szorc@gmail.com>
parents:
30793
diff
changeset
|
1558 return '', data |
78ac56aebab6
revlog: use compression engine API for compression
Gregory Szorc <gregory.szorc@gmail.com>
parents:
30793
diff
changeset
|
1559 return 'u', data |
17128
1028a1c9077a
revlog: make compress a method
Bryan O'Sullivan <bryano@fb.com>
parents:
17009
diff
changeset
|
1560 |
30793
b6f455a6e4d6
revlog: move decompress() from module to revlog class (API)
Gregory Szorc <gregory.szorc@gmail.com>
parents:
30792
diff
changeset
|
1561 def decompress(self, data): |
b6f455a6e4d6
revlog: move decompress() from module to revlog class (API)
Gregory Szorc <gregory.szorc@gmail.com>
parents:
30792
diff
changeset
|
1562 """Decompress a revlog chunk. |
b6f455a6e4d6
revlog: move decompress() from module to revlog class (API)
Gregory Szorc <gregory.szorc@gmail.com>
parents:
30792
diff
changeset
|
1563 |
b6f455a6e4d6
revlog: move decompress() from module to revlog class (API)
Gregory Szorc <gregory.szorc@gmail.com>
parents:
30792
diff
changeset
|
1564 The chunk is expected to begin with a header identifying the |
b6f455a6e4d6
revlog: move decompress() from module to revlog class (API)
Gregory Szorc <gregory.szorc@gmail.com>
parents:
30792
diff
changeset
|
1565 format type so it can be routed to an appropriate decompressor. |
b6f455a6e4d6
revlog: move decompress() from module to revlog class (API)
Gregory Szorc <gregory.szorc@gmail.com>
parents:
30792
diff
changeset
|
1566 """ |
b6f455a6e4d6
revlog: move decompress() from module to revlog class (API)
Gregory Szorc <gregory.szorc@gmail.com>
parents:
30792
diff
changeset
|
1567 if not data: |
b6f455a6e4d6
revlog: move decompress() from module to revlog class (API)
Gregory Szorc <gregory.szorc@gmail.com>
parents:
30792
diff
changeset
|
1568 return data |
30817
2b279126b8f5
revlog: use compression engine APIs for decompression
Gregory Szorc <gregory.szorc@gmail.com>
parents:
30795
diff
changeset
|
1569 |
2b279126b8f5
revlog: use compression engine APIs for decompression
Gregory Szorc <gregory.szorc@gmail.com>
parents:
30795
diff
changeset
|
1570 # Revlogs are read much more frequently than they are written and many |
2b279126b8f5
revlog: use compression engine APIs for decompression
Gregory Szorc <gregory.szorc@gmail.com>
parents:
30795
diff
changeset
|
1571 # chunks only take microseconds to decompress, so performance is |
2b279126b8f5
revlog: use compression engine APIs for decompression
Gregory Szorc <gregory.szorc@gmail.com>
parents:
30795
diff
changeset
|
1572 # important here. |
2b279126b8f5
revlog: use compression engine APIs for decompression
Gregory Szorc <gregory.szorc@gmail.com>
parents:
30795
diff
changeset
|
1573 # |
2b279126b8f5
revlog: use compression engine APIs for decompression
Gregory Szorc <gregory.szorc@gmail.com>
parents:
30795
diff
changeset
|
1574 # We can make a few assumptions about revlogs: |
2b279126b8f5
revlog: use compression engine APIs for decompression
Gregory Szorc <gregory.szorc@gmail.com>
parents:
30795
diff
changeset
|
1575 # |
2b279126b8f5
revlog: use compression engine APIs for decompression
Gregory Szorc <gregory.szorc@gmail.com>
parents:
30795
diff
changeset
|
1576 # 1) the majority of chunks will be compressed (as opposed to inline |
2b279126b8f5
revlog: use compression engine APIs for decompression
Gregory Szorc <gregory.szorc@gmail.com>
parents:
30795
diff
changeset
|
1577 # raw data). |
2b279126b8f5
revlog: use compression engine APIs for decompression
Gregory Szorc <gregory.szorc@gmail.com>
parents:
30795
diff
changeset
|
1578 # 2) decompressing *any* data will likely by at least 10x slower than |
2b279126b8f5
revlog: use compression engine APIs for decompression
Gregory Szorc <gregory.szorc@gmail.com>
parents:
30795
diff
changeset
|
1579 # returning raw inline data. |
2b279126b8f5
revlog: use compression engine APIs for decompression
Gregory Szorc <gregory.szorc@gmail.com>
parents:
30795
diff
changeset
|
1580 # 3) we want to prioritize common and officially supported compression |
2b279126b8f5
revlog: use compression engine APIs for decompression
Gregory Szorc <gregory.szorc@gmail.com>
parents:
30795
diff
changeset
|
1581 # engines |
2b279126b8f5
revlog: use compression engine APIs for decompression
Gregory Szorc <gregory.szorc@gmail.com>
parents:
30795
diff
changeset
|
1582 # |
2b279126b8f5
revlog: use compression engine APIs for decompression
Gregory Szorc <gregory.szorc@gmail.com>
parents:
30795
diff
changeset
|
1583 # It follows that we want to optimize for "decompress compressed data |
2b279126b8f5
revlog: use compression engine APIs for decompression
Gregory Szorc <gregory.szorc@gmail.com>
parents:
30795
diff
changeset
|
1584 # when encoded with common and officially supported compression engines" |
2b279126b8f5
revlog: use compression engine APIs for decompression
Gregory Szorc <gregory.szorc@gmail.com>
parents:
30795
diff
changeset
|
1585 # case over "raw data" and "data encoded by less common or non-official |
2b279126b8f5
revlog: use compression engine APIs for decompression
Gregory Szorc <gregory.szorc@gmail.com>
parents:
30795
diff
changeset
|
1586 # compression engines." That is why we have the inline lookup first |
2b279126b8f5
revlog: use compression engine APIs for decompression
Gregory Szorc <gregory.szorc@gmail.com>
parents:
30795
diff
changeset
|
1587 # followed by the compengines lookup. |
2b279126b8f5
revlog: use compression engine APIs for decompression
Gregory Szorc <gregory.szorc@gmail.com>
parents:
30795
diff
changeset
|
1588 # |
2b279126b8f5
revlog: use compression engine APIs for decompression
Gregory Szorc <gregory.szorc@gmail.com>
parents:
30795
diff
changeset
|
1589 # According to `hg perfrevlogchunks`, this is ~0.5% faster for zlib |
2b279126b8f5
revlog: use compression engine APIs for decompression
Gregory Szorc <gregory.szorc@gmail.com>
parents:
30795
diff
changeset
|
1590 # compressed chunks. And this matters for changelog and manifest reads. |
31356
ef6888172437
revlog: extract first byte of revlog with a slice so it's portable
Augie Fackler <augie@google.com>
parents:
30829
diff
changeset
|
1591 t = data[0:1] |
30817
2b279126b8f5
revlog: use compression engine APIs for decompression
Gregory Szorc <gregory.szorc@gmail.com>
parents:
30795
diff
changeset
|
1592 |
30793
b6f455a6e4d6
revlog: move decompress() from module to revlog class (API)
Gregory Szorc <gregory.szorc@gmail.com>
parents:
30792
diff
changeset
|
1593 if t == 'x': |
b6f455a6e4d6
revlog: move decompress() from module to revlog class (API)
Gregory Szorc <gregory.szorc@gmail.com>
parents:
30792
diff
changeset
|
1594 try: |
30817
2b279126b8f5
revlog: use compression engine APIs for decompression
Gregory Szorc <gregory.szorc@gmail.com>
parents:
30795
diff
changeset
|
1595 return _zlibdecompress(data) |
30793
b6f455a6e4d6
revlog: move decompress() from module to revlog class (API)
Gregory Szorc <gregory.szorc@gmail.com>
parents:
30792
diff
changeset
|
1596 except zlib.error as e: |
b6f455a6e4d6
revlog: move decompress() from module to revlog class (API)
Gregory Szorc <gregory.szorc@gmail.com>
parents:
30792
diff
changeset
|
1597 raise RevlogError(_('revlog decompress error: %s') % str(e)) |
30817
2b279126b8f5
revlog: use compression engine APIs for decompression
Gregory Szorc <gregory.szorc@gmail.com>
parents:
30795
diff
changeset
|
1598 # '\0' is more common than 'u' so it goes first. |
2b279126b8f5
revlog: use compression engine APIs for decompression
Gregory Szorc <gregory.szorc@gmail.com>
parents:
30795
diff
changeset
|
1599 elif t == '\0': |
2b279126b8f5
revlog: use compression engine APIs for decompression
Gregory Szorc <gregory.szorc@gmail.com>
parents:
30795
diff
changeset
|
1600 return data |
2b279126b8f5
revlog: use compression engine APIs for decompression
Gregory Szorc <gregory.szorc@gmail.com>
parents:
30795
diff
changeset
|
1601 elif t == 'u': |
30793
b6f455a6e4d6
revlog: move decompress() from module to revlog class (API)
Gregory Szorc <gregory.szorc@gmail.com>
parents:
30792
diff
changeset
|
1602 return util.buffer(data, 1) |
30817
2b279126b8f5
revlog: use compression engine APIs for decompression
Gregory Szorc <gregory.szorc@gmail.com>
parents:
30795
diff
changeset
|
1603 |
2b279126b8f5
revlog: use compression engine APIs for decompression
Gregory Szorc <gregory.szorc@gmail.com>
parents:
30795
diff
changeset
|
1604 try: |
2b279126b8f5
revlog: use compression engine APIs for decompression
Gregory Szorc <gregory.szorc@gmail.com>
parents:
30795
diff
changeset
|
1605 compressor = self._decompressors[t] |
2b279126b8f5
revlog: use compression engine APIs for decompression
Gregory Szorc <gregory.szorc@gmail.com>
parents:
30795
diff
changeset
|
1606 except KeyError: |
2b279126b8f5
revlog: use compression engine APIs for decompression
Gregory Szorc <gregory.szorc@gmail.com>
parents:
30795
diff
changeset
|
1607 try: |
2b279126b8f5
revlog: use compression engine APIs for decompression
Gregory Szorc <gregory.szorc@gmail.com>
parents:
30795
diff
changeset
|
1608 engine = util.compengines.forrevlogheader(t) |
2b279126b8f5
revlog: use compression engine APIs for decompression
Gregory Szorc <gregory.szorc@gmail.com>
parents:
30795
diff
changeset
|
1609 compressor = engine.revlogcompressor() |
2b279126b8f5
revlog: use compression engine APIs for decompression
Gregory Szorc <gregory.szorc@gmail.com>
parents:
30795
diff
changeset
|
1610 self._decompressors[t] = compressor |
2b279126b8f5
revlog: use compression engine APIs for decompression
Gregory Szorc <gregory.szorc@gmail.com>
parents:
30795
diff
changeset
|
1611 except KeyError: |
2b279126b8f5
revlog: use compression engine APIs for decompression
Gregory Szorc <gregory.szorc@gmail.com>
parents:
30795
diff
changeset
|
1612 raise RevlogError(_('unknown compression type %r') % t) |
2b279126b8f5
revlog: use compression engine APIs for decompression
Gregory Szorc <gregory.szorc@gmail.com>
parents:
30795
diff
changeset
|
1613 |
2b279126b8f5
revlog: use compression engine APIs for decompression
Gregory Szorc <gregory.szorc@gmail.com>
parents:
30795
diff
changeset
|
1614 return compressor.decompress(data) |
30793
b6f455a6e4d6
revlog: move decompress() from module to revlog class (API)
Gregory Szorc <gregory.szorc@gmail.com>
parents:
30792
diff
changeset
|
1615 |
26115
748347e0e8d4
revlog: move delta check to it's own function
Durham Goode <durham@fb.com>
parents:
25892
diff
changeset
|
1616 def _isgooddelta(self, d, textlen): |
748347e0e8d4
revlog: move delta check to it's own function
Durham Goode <durham@fb.com>
parents:
25892
diff
changeset
|
1617 """Returns True if the given delta is good. Good means that it is within |
748347e0e8d4
revlog: move delta check to it's own function
Durham Goode <durham@fb.com>
parents:
25892
diff
changeset
|
1618 the disk span, disk size, and chain length bounds that we know to be |
748347e0e8d4
revlog: move delta check to it's own function
Durham Goode <durham@fb.com>
parents:
25892
diff
changeset
|
1619 performant.""" |
748347e0e8d4
revlog: move delta check to it's own function
Durham Goode <durham@fb.com>
parents:
25892
diff
changeset
|
1620 if d is None: |
748347e0e8d4
revlog: move delta check to it's own function
Durham Goode <durham@fb.com>
parents:
25892
diff
changeset
|
1621 return False |
748347e0e8d4
revlog: move delta check to it's own function
Durham Goode <durham@fb.com>
parents:
25892
diff
changeset
|
1622 |
748347e0e8d4
revlog: move delta check to it's own function
Durham Goode <durham@fb.com>
parents:
25892
diff
changeset
|
1623 # - 'dist' is the distance from the base revision -- bounding it limits |
748347e0e8d4
revlog: move delta check to it's own function
Durham Goode <durham@fb.com>
parents:
25892
diff
changeset
|
1624 # the amount of I/O we need to do. |
748347e0e8d4
revlog: move delta check to it's own function
Durham Goode <durham@fb.com>
parents:
25892
diff
changeset
|
1625 # - 'compresseddeltalen' is the sum of the total size of deltas we need |
748347e0e8d4
revlog: move delta check to it's own function
Durham Goode <durham@fb.com>
parents:
25892
diff
changeset
|
1626 # to apply -- bounding it limits the amount of CPU we consume. |
748347e0e8d4
revlog: move delta check to it's own function
Durham Goode <durham@fb.com>
parents:
25892
diff
changeset
|
1627 dist, l, data, base, chainbase, chainlen, compresseddeltalen = d |
748347e0e8d4
revlog: move delta check to it's own function
Durham Goode <durham@fb.com>
parents:
25892
diff
changeset
|
1628 if (dist > textlen * 4 or l > textlen or |
748347e0e8d4
revlog: move delta check to it's own function
Durham Goode <durham@fb.com>
parents:
25892
diff
changeset
|
1629 compresseddeltalen > textlen * 2 or |
748347e0e8d4
revlog: move delta check to it's own function
Durham Goode <durham@fb.com>
parents:
25892
diff
changeset
|
1630 (self._maxchainlen and chainlen > self._maxchainlen)): |
748347e0e8d4
revlog: move delta check to it's own function
Durham Goode <durham@fb.com>
parents:
25892
diff
changeset
|
1631 return False |
748347e0e8d4
revlog: move delta check to it's own function
Durham Goode <durham@fb.com>
parents:
25892
diff
changeset
|
1632 |
748347e0e8d4
revlog: move delta check to it's own function
Durham Goode <durham@fb.com>
parents:
25892
diff
changeset
|
1633 return True |
748347e0e8d4
revlog: move delta check to it's own function
Durham Goode <durham@fb.com>
parents:
25892
diff
changeset
|
1634 |
31755
ec48d57de110
revlog: make _addrevision only accept rawtext
Jun Wu <quark@fb.com>
parents:
31754
diff
changeset
|
1635 def _addrevision(self, node, rawtext, transaction, link, p1, p2, flags, |
ec48d57de110
revlog: make _addrevision only accept rawtext
Jun Wu <quark@fb.com>
parents:
31754
diff
changeset
|
1636 cachedelta, ifh, dfh, alwayscache=False): |
14292
c97d8485b5fa
revlog: add docstring to _addrevision
Sune Foldager <cryo@cyanite.org>
parents:
14270
diff
changeset
|
1637 """internal function to add revisions to the log |
12623
8f97b50a8d10
revlog._addrevision(): allow text argument to be None, build it lazily
Benoit Boissinot <benoit.boissinot@ens-lyon.org>
parents:
12336
diff
changeset
|
1638 |
14292
c97d8485b5fa
revlog: add docstring to _addrevision
Sune Foldager <cryo@cyanite.org>
parents:
14270
diff
changeset
|
1639 see addrevision for argument descriptions. |
31755
ec48d57de110
revlog: make _addrevision only accept rawtext
Jun Wu <quark@fb.com>
parents:
31754
diff
changeset
|
1640 |
ec48d57de110
revlog: make _addrevision only accept rawtext
Jun Wu <quark@fb.com>
parents:
31754
diff
changeset
|
1641 note: "addrevision" takes non-raw text, "_addrevision" takes raw text. |
ec48d57de110
revlog: make _addrevision only accept rawtext
Jun Wu <quark@fb.com>
parents:
31754
diff
changeset
|
1642 |
14292
c97d8485b5fa
revlog: add docstring to _addrevision
Sune Foldager <cryo@cyanite.org>
parents:
14270
diff
changeset
|
1643 invariants: |
31755
ec48d57de110
revlog: make _addrevision only accept rawtext
Jun Wu <quark@fb.com>
parents:
31754
diff
changeset
|
1644 - rawtext is optional (can be None); if not set, cachedelta must be set. |
17424
e7cfe3587ea4
fix trivial spelling errors
Mads Kiilerich <mads@kiilerich.com>
parents:
17150
diff
changeset
|
1645 if both are set, they must correspond to each other. |
14292
c97d8485b5fa
revlog: add docstring to _addrevision
Sune Foldager <cryo@cyanite.org>
parents:
14270
diff
changeset
|
1646 """ |
31755
ec48d57de110
revlog: make _addrevision only accept rawtext
Jun Wu <quark@fb.com>
parents:
31754
diff
changeset
|
1647 btext = [rawtext] |
12886
c25945a148c1
revlog: fix buildtext local scope
Matt Mackall <mpm@selenic.com>
parents:
12624
diff
changeset
|
1648 def buildtext(): |
c25945a148c1
revlog: fix buildtext local scope
Matt Mackall <mpm@selenic.com>
parents:
12624
diff
changeset
|
1649 if btext[0] is not None: |
c25945a148c1
revlog: fix buildtext local scope
Matt Mackall <mpm@selenic.com>
parents:
12624
diff
changeset
|
1650 return btext[0] |
24122
da14b8eba806
revlog: special case expanding full-replacement deltas received by exchange
Mike Edgar <adgar@google.com>
parents:
24120
diff
changeset
|
1651 baserev = cachedelta[0] |
da14b8eba806
revlog: special case expanding full-replacement deltas received by exchange
Mike Edgar <adgar@google.com>
parents:
24120
diff
changeset
|
1652 delta = cachedelta[1] |
da14b8eba806
revlog: special case expanding full-replacement deltas received by exchange
Mike Edgar <adgar@google.com>
parents:
24120
diff
changeset
|
1653 # special case deltas which replace entire base; no need to decode |
da14b8eba806
revlog: special case expanding full-replacement deltas received by exchange
Mike Edgar <adgar@google.com>
parents:
24120
diff
changeset
|
1654 # base revision. this neatly avoids censored bases, which throw when |
da14b8eba806
revlog: special case expanding full-replacement deltas received by exchange
Mike Edgar <adgar@google.com>
parents:
24120
diff
changeset
|
1655 # they're decoded. |
da14b8eba806
revlog: special case expanding full-replacement deltas received by exchange
Mike Edgar <adgar@google.com>
parents:
24120
diff
changeset
|
1656 hlen = struct.calcsize(">lll") |
da14b8eba806
revlog: special case expanding full-replacement deltas received by exchange
Mike Edgar <adgar@google.com>
parents:
24120
diff
changeset
|
1657 if delta[:hlen] == mdiff.replacediffheader(self.rawsize(baserev), |
da14b8eba806
revlog: special case expanding full-replacement deltas received by exchange
Mike Edgar <adgar@google.com>
parents:
24120
diff
changeset
|
1658 len(delta) - hlen): |
da14b8eba806
revlog: special case expanding full-replacement deltas received by exchange
Mike Edgar <adgar@google.com>
parents:
24120
diff
changeset
|
1659 btext[0] = delta[hlen:] |
da14b8eba806
revlog: special case expanding full-replacement deltas received by exchange
Mike Edgar <adgar@google.com>
parents:
24120
diff
changeset
|
1660 else: |
26379
39d643252b9f
revlog: use existing file handle when reading during _addrevision
Gregory Szorc <gregory.szorc@gmail.com>
parents:
26378
diff
changeset
|
1661 if self._inline: |
39d643252b9f
revlog: use existing file handle when reading during _addrevision
Gregory Szorc <gregory.szorc@gmail.com>
parents:
26378
diff
changeset
|
1662 fh = ifh |
39d643252b9f
revlog: use existing file handle when reading during _addrevision
Gregory Szorc <gregory.szorc@gmail.com>
parents:
26378
diff
changeset
|
1663 else: |
39d643252b9f
revlog: use existing file handle when reading during _addrevision
Gregory Szorc <gregory.szorc@gmail.com>
parents:
26378
diff
changeset
|
1664 fh = dfh |
31755
ec48d57de110
revlog: make _addrevision only accept rawtext
Jun Wu <quark@fb.com>
parents:
31754
diff
changeset
|
1665 basetext = self.revision(baserev, _df=fh, raw=True) |
24122
da14b8eba806
revlog: special case expanding full-replacement deltas received by exchange
Mike Edgar <adgar@google.com>
parents:
24120
diff
changeset
|
1666 btext[0] = mdiff.patch(basetext, delta) |
30743
2df983125d37
revlog: add 'raw' argument to revision and _addrevision
Remi Chaintron <remi@fb.com>
parents:
30584
diff
changeset
|
1667 |
22934
8a096d4d0862
revlog: support importing censored file revision tombstones
Mike Edgar <adgar@google.com>
parents:
22785
diff
changeset
|
1668 try: |
31755
ec48d57de110
revlog: make _addrevision only accept rawtext
Jun Wu <quark@fb.com>
parents:
31754
diff
changeset
|
1669 res = self._processflags(btext[0], flags, 'read', raw=True) |
30745 | 1670 btext[0], validatehash = res |
1671 if validatehash: | |
1672 self.checkhash(btext[0], node, p1=p1, p2=p2) | |
23857
8a3c132f93d2
revlog: verify censored flag when hashing added revision fulltext
Mike Edgar <adgar@google.com>
parents:
23856
diff
changeset
|
1673 if flags & REVIDX_ISCENSORED: |
8a3c132f93d2
revlog: verify censored flag when hashing added revision fulltext
Mike Edgar <adgar@google.com>
parents:
23856
diff
changeset
|
1674 raise RevlogError(_('node %s is not censored') % node) |
22934
8a096d4d0862
revlog: support importing censored file revision tombstones
Mike Edgar <adgar@google.com>
parents:
22785
diff
changeset
|
1675 except CensoredNodeError: |
23857
8a3c132f93d2
revlog: verify censored flag when hashing added revision fulltext
Mike Edgar <adgar@google.com>
parents:
23856
diff
changeset
|
1676 # must pass the censored index flag to add censored revisions |
8a3c132f93d2
revlog: verify censored flag when hashing added revision fulltext
Mike Edgar <adgar@google.com>
parents:
23856
diff
changeset
|
1677 if not flags & REVIDX_ISCENSORED: |
8a3c132f93d2
revlog: verify censored flag when hashing added revision fulltext
Mike Edgar <adgar@google.com>
parents:
23856
diff
changeset
|
1678 raise |
12886
c25945a148c1
revlog: fix buildtext local scope
Matt Mackall <mpm@selenic.com>
parents:
12624
diff
changeset
|
1679 return btext[0] |
12623
8f97b50a8d10
revlog._addrevision(): allow text argument to be None, build it lazily
Benoit Boissinot <benoit.boissinot@ens-lyon.org>
parents:
12336
diff
changeset
|
1680 |
12888
ad01fe38afe6
revlog: extract delta building to a subfunction
Matt Mackall <mpm@selenic.com>
parents:
12887
diff
changeset
|
1681 def builddelta(rev): |
ad01fe38afe6
revlog: extract delta building to a subfunction
Matt Mackall <mpm@selenic.com>
parents:
12887
diff
changeset
|
1682 # can we use the cached delta? |
ad01fe38afe6
revlog: extract delta building to a subfunction
Matt Mackall <mpm@selenic.com>
parents:
12887
diff
changeset
|
1683 if cachedelta and cachedelta[0] == rev: |
ad01fe38afe6
revlog: extract delta building to a subfunction
Matt Mackall <mpm@selenic.com>
parents:
12887
diff
changeset
|
1684 delta = cachedelta[1] |
ad01fe38afe6
revlog: extract delta building to a subfunction
Matt Mackall <mpm@selenic.com>
parents:
12887
diff
changeset
|
1685 else: |
ad01fe38afe6
revlog: extract delta building to a subfunction
Matt Mackall <mpm@selenic.com>
parents:
12887
diff
changeset
|
1686 t = buildtext() |
24123
eb2d41c6ec37
revlog: _addrevision creates full-replace deltas based on censored revisions
Mike Edgar <adgar@google.com>
parents:
24122
diff
changeset
|
1687 if self.iscensored(rev): |
eb2d41c6ec37
revlog: _addrevision creates full-replace deltas based on censored revisions
Mike Edgar <adgar@google.com>
parents:
24122
diff
changeset
|
1688 # deltas based on a censored revision must replace the |
eb2d41c6ec37
revlog: _addrevision creates full-replace deltas based on censored revisions
Mike Edgar <adgar@google.com>
parents:
24122
diff
changeset
|
1689 # full content in one patch, so delta works everywhere |
eb2d41c6ec37
revlog: _addrevision creates full-replace deltas based on censored revisions
Mike Edgar <adgar@google.com>
parents:
24122
diff
changeset
|
1690 header = mdiff.replacediffheader(self.rawsize(rev), len(t)) |
eb2d41c6ec37
revlog: _addrevision creates full-replace deltas based on censored revisions
Mike Edgar <adgar@google.com>
parents:
24122
diff
changeset
|
1691 delta = header + t |
eb2d41c6ec37
revlog: _addrevision creates full-replace deltas based on censored revisions
Mike Edgar <adgar@google.com>
parents:
24122
diff
changeset
|
1692 else: |
26379
39d643252b9f
revlog: use existing file handle when reading during _addrevision
Gregory Szorc <gregory.szorc@gmail.com>
parents:
26378
diff
changeset
|
1693 if self._inline: |
39d643252b9f
revlog: use existing file handle when reading during _addrevision
Gregory Szorc <gregory.szorc@gmail.com>
parents:
26378
diff
changeset
|
1694 fh = ifh |
39d643252b9f
revlog: use existing file handle when reading during _addrevision
Gregory Szorc <gregory.szorc@gmail.com>
parents:
26378
diff
changeset
|
1695 else: |
39d643252b9f
revlog: use existing file handle when reading during _addrevision
Gregory Szorc <gregory.szorc@gmail.com>
parents:
26378
diff
changeset
|
1696 fh = dfh |
31752
f424fb180fea
revlog: use raw content when building delta
Jun Wu <quark@fb.com>
parents:
31751
diff
changeset
|
1697 ptext = self.revision(rev, _df=fh, raw=True) |
24123
eb2d41c6ec37
revlog: _addrevision creates full-replace deltas based on censored revisions
Mike Edgar <adgar@google.com>
parents:
24122
diff
changeset
|
1698 delta = mdiff.textdiff(ptext, t) |
30011
d81fe5af92b8
revlog: make code in builddelta() slightly easier to read
Gregory Szorc <gregory.szorc@gmail.com>
parents:
29997
diff
changeset
|
1699 header, data = self.compress(delta) |
d81fe5af92b8
revlog: make code in builddelta() slightly easier to read
Gregory Szorc <gregory.szorc@gmail.com>
parents:
29997
diff
changeset
|
1700 deltalen = len(header) + len(data) |
29830
92ac2baaea86
revlog: use an LRU cache for delta chain bases
Gregory Szorc <gregory.szorc@gmail.com>
parents:
29829
diff
changeset
|
1701 chainbase = self.chainbase(rev) |
30011
d81fe5af92b8
revlog: make code in builddelta() slightly easier to read
Gregory Szorc <gregory.szorc@gmail.com>
parents:
29997
diff
changeset
|
1702 dist = deltalen + offset - self.start(chainbase) |
14270
d6907a5674a2
revlog: support writing generaldelta revlogs
Sune Foldager <cryo@cyanite.org>
parents:
14253
diff
changeset
|
1703 if self._generaldelta: |
d6907a5674a2
revlog: support writing generaldelta revlogs
Sune Foldager <cryo@cyanite.org>
parents:
14253
diff
changeset
|
1704 base = rev |
d6907a5674a2
revlog: support writing generaldelta revlogs
Sune Foldager <cryo@cyanite.org>
parents:
14253
diff
changeset
|
1705 else: |
d6907a5674a2
revlog: support writing generaldelta revlogs
Sune Foldager <cryo@cyanite.org>
parents:
14253
diff
changeset
|
1706 base = chainbase |
23287
426d7f901789
revlog: bound based on the length of the compressed deltas
Siddharth Agarwal <sid0@fb.com>
parents:
23286
diff
changeset
|
1707 chainlen, compresseddeltalen = self._chaininfo(rev) |
426d7f901789
revlog: bound based on the length of the compressed deltas
Siddharth Agarwal <sid0@fb.com>
parents:
23286
diff
changeset
|
1708 chainlen += 1 |
30011
d81fe5af92b8
revlog: make code in builddelta() slightly easier to read
Gregory Szorc <gregory.szorc@gmail.com>
parents:
29997
diff
changeset
|
1709 compresseddeltalen += deltalen |
d81fe5af92b8
revlog: make code in builddelta() slightly easier to read
Gregory Szorc <gregory.szorc@gmail.com>
parents:
29997
diff
changeset
|
1710 return (dist, deltalen, (header, data), base, |
d81fe5af92b8
revlog: make code in builddelta() slightly easier to read
Gregory Szorc <gregory.szorc@gmail.com>
parents:
29997
diff
changeset
|
1711 chainbase, chainlen, compresseddeltalen) |
12888
ad01fe38afe6
revlog: extract delta building to a subfunction
Matt Mackall <mpm@selenic.com>
parents:
12887
diff
changeset
|
1712 |
6750
fb42030d79d6
add __len__ and __iter__ methods to repo and revlog
Matt Mackall <mpm@selenic.com>
parents:
6703
diff
changeset
|
1713 curr = len(self) |
4981
e7131935fbb3
revlog: simplify addrevision
Matt Mackall <mpm@selenic.com>
parents:
4980
diff
changeset
|
1714 prev = curr - 1 |
e7131935fbb3
revlog: simplify addrevision
Matt Mackall <mpm@selenic.com>
parents:
4980
diff
changeset
|
1715 offset = self.end(prev) |
27178
5ebc4a192550
addrevision: rename 'd' to 'delta'
Pierre-Yves David <pierre-yves.david@fb.com>
parents:
27070
diff
changeset
|
1716 delta = None |
12889
5482c6b826f4
revlog: precalculate p1 and p2 revisions
Matt Mackall <mpm@selenic.com>
parents:
12888
diff
changeset
|
1717 p1r, p2r = self.rev(p1), self.rev(p2) |
0
9117c6561b0b
Add back links from file revisions to changeset revisions
mpm@selenic.com
parents:
diff
changeset
|
1718 |
26116
562cfc99e611
revlog: move textlen calculation to be above delta chooser
Durham Goode <durham@fb.com>
parents:
26115
diff
changeset
|
1719 # full versions are inserted when the needed deltas |
562cfc99e611
revlog: move textlen calculation to be above delta chooser
Durham Goode <durham@fb.com>
parents:
26115
diff
changeset
|
1720 # become comparable to the uncompressed text |
31755
ec48d57de110
revlog: make _addrevision only accept rawtext
Jun Wu <quark@fb.com>
parents:
31754
diff
changeset
|
1721 if rawtext is None: |
26116
562cfc99e611
revlog: move textlen calculation to be above delta chooser
Durham Goode <durham@fb.com>
parents:
26115
diff
changeset
|
1722 textlen = mdiff.patchedsize(self.rawsize(cachedelta[0]), |
562cfc99e611
revlog: move textlen calculation to be above delta chooser
Durham Goode <durham@fb.com>
parents:
26115
diff
changeset
|
1723 cachedelta[1]) |
562cfc99e611
revlog: move textlen calculation to be above delta chooser
Durham Goode <durham@fb.com>
parents:
26115
diff
changeset
|
1724 else: |
31755
ec48d57de110
revlog: make _addrevision only accept rawtext
Jun Wu <quark@fb.com>
parents:
31754
diff
changeset
|
1725 textlen = len(rawtext) |
26116
562cfc99e611
revlog: move textlen calculation to be above delta chooser
Durham Goode <durham@fb.com>
parents:
26115
diff
changeset
|
1726 |
11963
7c3aa579d98a
parendelta: fix computation of base rev (fixes issue2337)
Benoit Boissinot <benoit.boissinot@ens-lyon.org>
parents:
11962
diff
changeset
|
1727 # should we try to build a delta? |
30210
5e4f16874a9f
revlog: make 'storedeltachains' a "public" attribute
Pierre-Yves David <pierre-yves.david@ens-lyon.org>
parents:
30154
diff
changeset
|
1728 if prev != nullrev and self.storedeltachains: |
27191
20a9226bdc8a
addrevision: use general delta when the incoming base delta is bad
Pierre-Yves David <pierre-yves.david@fb.com>
parents:
27189
diff
changeset
|
1729 tested = set() |
30012
60a66c79125f
revlog: document high frequency of code execution
Gregory Szorc <gregory.szorc@gmail.com>
parents:
30011
diff
changeset
|
1730 # This condition is true most of the time when processing |
60a66c79125f
revlog: document high frequency of code execution
Gregory Szorc <gregory.szorc@gmail.com>
parents:
30011
diff
changeset
|
1731 # changegroup data into a generaldelta repo. The only time it |
60a66c79125f
revlog: document high frequency of code execution
Gregory Szorc <gregory.szorc@gmail.com>
parents:
30011
diff
changeset
|
1732 # isn't true is if this is the first revision in a delta chain |
60a66c79125f
revlog: document high frequency of code execution
Gregory Szorc <gregory.szorc@gmail.com>
parents:
30011
diff
changeset
|
1733 # or if ``format.generaldelta=true`` disabled ``lazydeltabase``. |
26907
dfab6edb98e3
format: introduce 'format.usegeneraldelta`
Pierre-Yves David <pierre-yves.david@fb.com>
parents:
26705
diff
changeset
|
1734 if cachedelta and self._generaldelta and self._lazydeltabase: |
dfab6edb98e3
format: introduce 'format.usegeneraldelta`
Pierre-Yves David <pierre-yves.david@fb.com>
parents:
26705
diff
changeset
|
1735 # Assume what we received from the server is a good choice |
dfab6edb98e3
format: introduce 'format.usegeneraldelta`
Pierre-Yves David <pierre-yves.david@fb.com>
parents:
26705
diff
changeset
|
1736 # build delta will reuse the cache |
27180
8e7db961535a
addrevision: only use the incoming base if it is a good delta (issue4975)
Pierre-Yves David <pierre-yves.david@fb.com>
parents:
27179
diff
changeset
|
1737 candidatedelta = builddelta(cachedelta[0]) |
27249
0e5aab543d85
revlog: clarify which revision is added to 'tested' when using cached delta
Martin von Zweigbergk <martinvonz@google.com>
parents:
27248
diff
changeset
|
1738 tested.add(cachedelta[0]) |
27180
8e7db961535a
addrevision: only use the incoming base if it is a good delta (issue4975)
Pierre-Yves David <pierre-yves.david@fb.com>
parents:
27179
diff
changeset
|
1739 if self._isgooddelta(candidatedelta, textlen): |
8e7db961535a
addrevision: only use the incoming base if it is a good delta (issue4975)
Pierre-Yves David <pierre-yves.david@fb.com>
parents:
27179
diff
changeset
|
1740 delta = candidatedelta |
27191
20a9226bdc8a
addrevision: use general delta when the incoming base delta is bad
Pierre-Yves David <pierre-yves.david@fb.com>
parents:
27189
diff
changeset
|
1741 if delta is None and self._generaldelta: |
20a9226bdc8a
addrevision: use general delta when the incoming base delta is bad
Pierre-Yves David <pierre-yves.david@fb.com>
parents:
27189
diff
changeset
|
1742 # exclude already lazy tested base if any |
27251
d9bfe6289acf
revlog: don't consider nullrev when choosing delta base
Martin von Zweigbergk <martinvonz@google.com>
parents:
27250
diff
changeset
|
1743 parents = [p for p in (p1r, p2r) |
d9bfe6289acf
revlog: don't consider nullrev when choosing delta base
Martin von Zweigbergk <martinvonz@google.com>
parents:
27250
diff
changeset
|
1744 if p != nullrev and p not in tested] |
27191
20a9226bdc8a
addrevision: use general delta when the incoming base delta is bad
Pierre-Yves David <pierre-yves.david@fb.com>
parents:
27189
diff
changeset
|
1745 if parents and not self._aggressivemergedeltas: |
26118
049005de325e
revlog: add an aggressivemergedelta option
Durham Goode <durham@fb.com>
parents:
26117
diff
changeset
|
1746 # Pick whichever parent is closer to us (to minimize the |
27191
20a9226bdc8a
addrevision: use general delta when the incoming base delta is bad
Pierre-Yves David <pierre-yves.david@fb.com>
parents:
27189
diff
changeset
|
1747 # chance of having to build a fulltext). |
27189
7b6cb7c15109
addrevision: rework generaldelta computation
Pierre-Yves David <pierre-yves.david@fb.com>
parents:
27180
diff
changeset
|
1748 parents = [max(parents)] |
27191
20a9226bdc8a
addrevision: use general delta when the incoming base delta is bad
Pierre-Yves David <pierre-yves.david@fb.com>
parents:
27189
diff
changeset
|
1749 tested.update(parents) |
27189
7b6cb7c15109
addrevision: rework generaldelta computation
Pierre-Yves David <pierre-yves.david@fb.com>
parents:
27180
diff
changeset
|
1750 pdeltas = [] |
7b6cb7c15109
addrevision: rework generaldelta computation
Pierre-Yves David <pierre-yves.david@fb.com>
parents:
27180
diff
changeset
|
1751 for p in parents: |
7b6cb7c15109
addrevision: rework generaldelta computation
Pierre-Yves David <pierre-yves.david@fb.com>
parents:
27180
diff
changeset
|
1752 pd = builddelta(p) |
7b6cb7c15109
addrevision: rework generaldelta computation
Pierre-Yves David <pierre-yves.david@fb.com>
parents:
27180
diff
changeset
|
1753 if self._isgooddelta(pd, textlen): |
7b6cb7c15109
addrevision: rework generaldelta computation
Pierre-Yves David <pierre-yves.david@fb.com>
parents:
27180
diff
changeset
|
1754 pdeltas.append(pd) |
7b6cb7c15109
addrevision: rework generaldelta computation
Pierre-Yves David <pierre-yves.david@fb.com>
parents:
27180
diff
changeset
|
1755 if pdeltas: |
7b6cb7c15109
addrevision: rework generaldelta computation
Pierre-Yves David <pierre-yves.david@fb.com>
parents:
27180
diff
changeset
|
1756 delta = min(pdeltas, key=lambda x: x[1]) |
27191
20a9226bdc8a
addrevision: use general delta when the incoming base delta is bad
Pierre-Yves David <pierre-yves.david@fb.com>
parents:
27189
diff
changeset
|
1757 if delta is None and prev not in tested: |
20a9226bdc8a
addrevision: use general delta when the incoming base delta is bad
Pierre-Yves David <pierre-yves.david@fb.com>
parents:
27189
diff
changeset
|
1758 # other approach failed try against prev to hopefully save us a |
20a9226bdc8a
addrevision: use general delta when the incoming base delta is bad
Pierre-Yves David <pierre-yves.david@fb.com>
parents:
27189
diff
changeset
|
1759 # fulltext. |
27250
bff71fe05768
revlog: make calls to _isgooddelta() consistent
Martin von Zweigbergk <martinvonz@google.com>
parents:
27249
diff
changeset
|
1760 candidatedelta = builddelta(prev) |
bff71fe05768
revlog: make calls to _isgooddelta() consistent
Martin von Zweigbergk <martinvonz@google.com>
parents:
27249
diff
changeset
|
1761 if self._isgooddelta(candidatedelta, textlen): |
bff71fe05768
revlog: make calls to _isgooddelta() consistent
Martin von Zweigbergk <martinvonz@google.com>
parents:
27249
diff
changeset
|
1762 delta = candidatedelta |
27179
b481bf14992d
addrevision: handle code path not producing delta
Pierre-Yves David <pierre-yves.david@fb.com>
parents:
27178
diff
changeset
|
1763 if delta is not None: |
27178
5ebc4a192550
addrevision: rename 'd' to 'delta'
Pierre-Yves David <pierre-yves.david@fb.com>
parents:
27070
diff
changeset
|
1764 dist, l, data, base, chainbase, chainlen, compresseddeltalen = delta |
27250
bff71fe05768
revlog: make calls to _isgooddelta() consistent
Martin von Zweigbergk <martinvonz@google.com>
parents:
27249
diff
changeset
|
1765 else: |
31755
ec48d57de110
revlog: make _addrevision only accept rawtext
Jun Wu <quark@fb.com>
parents:
31754
diff
changeset
|
1766 rawtext = buildtext() |
ec48d57de110
revlog: make _addrevision only accept rawtext
Jun Wu <quark@fb.com>
parents:
31754
diff
changeset
|
1767 data = self.compress(rawtext) |
1533
3d11f81c9145
Reduce string duplication in compression code
mason@suse.com
parents:
1509
diff
changeset
|
1768 l = len(data[1]) + len(data[0]) |
14296
62e25c63fb3a
revlog: fix bug in chainbase cache
Sune Foldager <cryo@cyanite.org>
parents:
14292
diff
changeset
|
1769 base = chainbase = curr |
0
9117c6561b0b
Add back links from file revisions to changeset revisions
mpm@selenic.com
parents:
diff
changeset
|
1770 |
12623
8f97b50a8d10
revlog._addrevision(): allow text argument to be None, build it lazily
Benoit Boissinot <benoit.boissinot@ens-lyon.org>
parents:
12336
diff
changeset
|
1771 e = (offset_type(offset, flags), l, textlen, |
12889
5482c6b826f4
revlog: precalculate p1 and p2 revisions
Matt Mackall <mpm@selenic.com>
parents:
12888
diff
changeset
|
1772 base, link, p1r, p2r, node) |
4979
06abdaf78788
revlog: add a magic null revision to our index
Matt Mackall <mpm@selenic.com>
parents:
4978
diff
changeset
|
1773 self.index.insert(-1, e) |
4981
e7131935fbb3
revlog: simplify addrevision
Matt Mackall <mpm@selenic.com>
parents:
4980
diff
changeset
|
1774 self.nodemap[node] = curr |
4977
6cb30bc4ca32
revlog: parse revlogv0 indexes into v1 internally
Matt Mackall <mpm@selenic.com>
parents:
4976
diff
changeset
|
1775 |
5338
f87685355c9c
revlog: fix revlogio.packentry corner case
Alexis S. L. Carvalho <alexis@cecm.usp.br>
parents:
5325
diff
changeset
|
1776 entry = self._io.packentry(e, self.node, self.version, curr) |
20217
33394f2e331e
revlog: move file writing to a separate function
Durham Goode <durham@fb.com>
parents:
20180
diff
changeset
|
1777 self._writeentry(transaction, ifh, dfh, entry, data, link, offset) |
33394f2e331e
revlog: move file writing to a separate function
Durham Goode <durham@fb.com>
parents:
20180
diff
changeset
|
1778 |
31755
ec48d57de110
revlog: make _addrevision only accept rawtext
Jun Wu <quark@fb.com>
parents:
31754
diff
changeset
|
1779 if alwayscache and rawtext is None: |
ec48d57de110
revlog: make _addrevision only accept rawtext
Jun Wu <quark@fb.com>
parents:
31754
diff
changeset
|
1780 rawtext = buildtext() |
26243
836291420d53
revlog: optionally cache the full text when adding revisions
Gregory Szorc <gregory.szorc@gmail.com>
parents:
26242
diff
changeset
|
1781 |
31755
ec48d57de110
revlog: make _addrevision only accept rawtext
Jun Wu <quark@fb.com>
parents:
31754
diff
changeset
|
1782 if type(rawtext) == str: # only accept immutable objects |
ec48d57de110
revlog: make _addrevision only accept rawtext
Jun Wu <quark@fb.com>
parents:
31754
diff
changeset
|
1783 self._cache = (node, curr, rawtext) |
29830
92ac2baaea86
revlog: use an LRU cache for delta chain bases
Gregory Szorc <gregory.szorc@gmail.com>
parents:
29829
diff
changeset
|
1784 self._chainbasecache[curr] = chainbase |
20217
33394f2e331e
revlog: move file writing to a separate function
Durham Goode <durham@fb.com>
parents:
20180
diff
changeset
|
1785 return node |
33394f2e331e
revlog: move file writing to a separate function
Durham Goode <durham@fb.com>
parents:
20180
diff
changeset
|
1786 |
33394f2e331e
revlog: move file writing to a separate function
Durham Goode <durham@fb.com>
parents:
20180
diff
changeset
|
1787 def _writeentry(self, transaction, ifh, dfh, entry, data, link, offset): |
27430
e240e914d226
revlog: seek to end of file before writing (issue4943)
Gregory Szorc <gregory.szorc@gmail.com>
parents:
26705
diff
changeset
|
1788 # Files opened in a+ mode have inconsistent behavior on various |
e240e914d226
revlog: seek to end of file before writing (issue4943)
Gregory Szorc <gregory.szorc@gmail.com>
parents:
26705
diff
changeset
|
1789 # platforms. Windows requires that a file positioning call be made |
e240e914d226
revlog: seek to end of file before writing (issue4943)
Gregory Szorc <gregory.szorc@gmail.com>
parents:
26705
diff
changeset
|
1790 # when the file handle transitions between reads and writes. See |
e240e914d226
revlog: seek to end of file before writing (issue4943)
Gregory Szorc <gregory.szorc@gmail.com>
parents:
26705
diff
changeset
|
1791 # 3686fa2b8eee and the mixedfilemodewrapper in windows.py. On other |
e240e914d226
revlog: seek to end of file before writing (issue4943)
Gregory Szorc <gregory.szorc@gmail.com>
parents:
26705
diff
changeset
|
1792 # platforms, Python or the platform itself can be buggy. Some versions |
e240e914d226
revlog: seek to end of file before writing (issue4943)
Gregory Szorc <gregory.szorc@gmail.com>
parents:
26705
diff
changeset
|
1793 # of Solaris have been observed to not append at the end of the file |
e240e914d226
revlog: seek to end of file before writing (issue4943)
Gregory Szorc <gregory.szorc@gmail.com>
parents:
26705
diff
changeset
|
1794 # if the file was seeked to before the end. See issue4943 for more. |
e240e914d226
revlog: seek to end of file before writing (issue4943)
Gregory Szorc <gregory.szorc@gmail.com>
parents:
26705
diff
changeset
|
1795 # |
e240e914d226
revlog: seek to end of file before writing (issue4943)
Gregory Szorc <gregory.szorc@gmail.com>
parents:
26705
diff
changeset
|
1796 # We work around this issue by inserting a seek() before writing. |
e240e914d226
revlog: seek to end of file before writing (issue4943)
Gregory Szorc <gregory.szorc@gmail.com>
parents:
26705
diff
changeset
|
1797 # Note: This is likely not necessary on Python 3. |
e240e914d226
revlog: seek to end of file before writing (issue4943)
Gregory Szorc <gregory.szorc@gmail.com>
parents:
26705
diff
changeset
|
1798 ifh.seek(0, os.SEEK_END) |
27441
e47841c8343d
revlog: fix bad indentation (replace tab by space)
Martin von Zweigbergk <martinvonz@google.com>
parents:
27430
diff
changeset
|
1799 if dfh: |
27430
e240e914d226
revlog: seek to end of file before writing (issue4943)
Gregory Szorc <gregory.szorc@gmail.com>
parents:
26705
diff
changeset
|
1800 dfh.seek(0, os.SEEK_END) |
e240e914d226
revlog: seek to end of file before writing (issue4943)
Gregory Szorc <gregory.szorc@gmail.com>
parents:
26705
diff
changeset
|
1801 |
20217
33394f2e331e
revlog: move file writing to a separate function
Durham Goode <durham@fb.com>
parents:
20180
diff
changeset
|
1802 curr = len(self) - 1 |
4982
9672e3c42b0c
revlog: change _inline from a function to a variable
Matt Mackall <mpm@selenic.com>
parents:
4981
diff
changeset
|
1803 if not self._inline: |
2073 | 1804 transaction.add(self.datafile, offset) |
4981
e7131935fbb3
revlog: simplify addrevision
Matt Mackall <mpm@selenic.com>
parents:
4980
diff
changeset
|
1805 transaction.add(self.indexfile, curr * len(entry)) |
2073 | 1806 if data[0]: |
3390
a74addddd092
make revlog.addgroup pass its file handles to addrevision
Alexis S. L. Carvalho <alexis@cecm.usp.br>
parents:
3360
diff
changeset
|
1807 dfh.write(data[0]) |
a74addddd092
make revlog.addgroup pass its file handles to addrevision
Alexis S. L. Carvalho <alexis@cecm.usp.br>
parents:
3360
diff
changeset
|
1808 dfh.write(data[1]) |
4981
e7131935fbb3
revlog: simplify addrevision
Matt Mackall <mpm@selenic.com>
parents:
4980
diff
changeset
|
1809 ifh.write(entry) |
2073 | 1810 else: |
4996
a0d37976cd5b
revlog: avoid some unnecessary seek/tell syscalls
Matt Mackall <mpm@selenic.com>
parents:
4994
diff
changeset
|
1811 offset += curr * self._io.size |
5324
8409a2e3a78d
revlog: fix inlined revision transaction extra data (issue 749)
Patrick Mezard <pmezard@gmail.com>
parents:
5007
diff
changeset
|
1812 transaction.add(self.indexfile, offset, curr) |
4981
e7131935fbb3
revlog: simplify addrevision
Matt Mackall <mpm@selenic.com>
parents:
4980
diff
changeset
|
1813 ifh.write(entry) |
3390
a74addddd092
make revlog.addgroup pass its file handles to addrevision
Alexis S. L. Carvalho <alexis@cecm.usp.br>
parents:
3360
diff
changeset
|
1814 ifh.write(data[0]) |
a74addddd092
make revlog.addgroup pass its file handles to addrevision
Alexis S. L. Carvalho <alexis@cecm.usp.br>
parents:
3360
diff
changeset
|
1815 ifh.write(data[1]) |
a74addddd092
make revlog.addgroup pass its file handles to addrevision
Alexis S. L. Carvalho <alexis@cecm.usp.br>
parents:
3360
diff
changeset
|
1816 self.checkinlinesize(transaction, ifh) |
2073 | 1817 |
26705
2f5c45fe3a3b
revlog: rename bundle to cg to reflect its nature as a cg?unpacker
Augie Fackler <augie@google.com>
parents:
26380
diff
changeset
|
1818 def addgroup(self, cg, linkmapper, transaction, addrevisioncb=None): |
1083 | 1819 """ |
1820 add a delta group | |
46 | 1821 |
1083 | 1822 given a set of deltas, add them to the revision log. the |
1823 first delta is against its parent, which should be in our | |
1824 log, the rest are against the previous delta. | |
25822
00e3f909907f
revlog: add support for a callback whenever revisions are added
Gregory Szorc <gregory.szorc@gmail.com>
parents:
25660
diff
changeset
|
1825 |
00e3f909907f
revlog: add support for a callback whenever revisions are added
Gregory Szorc <gregory.szorc@gmail.com>
parents:
25660
diff
changeset
|
1826 If ``addrevisioncb`` is defined, it will be called with arguments of |
00e3f909907f
revlog: add support for a callback whenever revisions are added
Gregory Szorc <gregory.szorc@gmail.com>
parents:
25660
diff
changeset
|
1827 this revlog and the node that was added. |
1083 | 1828 """ |
1829 | |
12624
557988c691d1
revlog.addgroup(): always use _addrevision() to add new revlog entries
Benoit Boissinot <benoit.boissinot@ens-lyon.org>
parents:
12623
diff
changeset
|
1830 # track the base of the current delta log |
15890
e234eda20984
revlog: make addgroup returns a list of node contained in the added source
Pierre-Yves David <pierre-yves.david@ens-lyon.org>
parents:
15835
diff
changeset
|
1831 content = [] |
2002
4aab906517c6
Calling revlog.addgroup with an empty changegroup now raises RevlogError.
Thomas Arendsen Hein <thomas@intevation.de>
parents:
1981
diff
changeset
|
1832 node = None |
515 | 1833 |
12624
557988c691d1
revlog.addgroup(): always use _addrevision() to add new revlog entries
Benoit Boissinot <benoit.boissinot@ens-lyon.org>
parents:
12623
diff
changeset
|
1834 r = len(self) |
557988c691d1
revlog.addgroup(): always use _addrevision() to add new revlog entries
Benoit Boissinot <benoit.boissinot@ens-lyon.org>
parents:
12623
diff
changeset
|
1835 end = 0 |
46 | 1836 if r: |
12624
557988c691d1
revlog.addgroup(): always use _addrevision() to add new revlog entries
Benoit Boissinot <benoit.boissinot@ens-lyon.org>
parents:
12623
diff
changeset
|
1837 end = self.end(r - 1) |
29997
b5e5ddf48bd2
revlog: specify checkambig at writing to avoid file stat ambiguity
FUJIWARA Katsunori <foozy@lares.dti.ne.jp>
parents:
29830
diff
changeset
|
1838 ifh = self.opener(self.indexfile, "a+", checkambig=self._checkambig) |
4996
a0d37976cd5b
revlog: avoid some unnecessary seek/tell syscalls
Matt Mackall <mpm@selenic.com>
parents:
4994
diff
changeset
|
1839 isize = r * self._io.size |
4982
9672e3c42b0c
revlog: change _inline from a function to a variable
Matt Mackall <mpm@selenic.com>
parents:
4981
diff
changeset
|
1840 if self._inline: |
4996
a0d37976cd5b
revlog: avoid some unnecessary seek/tell syscalls
Matt Mackall <mpm@selenic.com>
parents:
4994
diff
changeset
|
1841 transaction.add(self.indexfile, end + isize, r) |
2073 | 1842 dfh = None |
1843 else: | |
4996
a0d37976cd5b
revlog: avoid some unnecessary seek/tell syscalls
Matt Mackall <mpm@selenic.com>
parents:
4994
diff
changeset
|
1844 transaction.add(self.indexfile, isize, r) |
2073 | 1845 transaction.add(self.datafile, end) |
26378
e749707f0afb
revlog: always open revlogs for reading and appending
Gregory Szorc <gregory.szorc@gmail.com>
parents:
26377
diff
changeset
|
1846 dfh = self.opener(self.datafile, "a+") |
24255
4bfe9f2d9761
revlog: addgroup checks if incoming deltas add censored revs, sets flag bit
Mike Edgar <adgar@google.com>
parents:
24123
diff
changeset
|
1847 def flush(): |
4bfe9f2d9761
revlog: addgroup checks if incoming deltas add censored revs, sets flag bit
Mike Edgar <adgar@google.com>
parents:
24123
diff
changeset
|
1848 if dfh: |
4bfe9f2d9761
revlog: addgroup checks if incoming deltas add censored revs, sets flag bit
Mike Edgar <adgar@google.com>
parents:
24123
diff
changeset
|
1849 dfh.flush() |
4bfe9f2d9761
revlog: addgroup checks if incoming deltas add censored revs, sets flag bit
Mike Edgar <adgar@google.com>
parents:
24123
diff
changeset
|
1850 ifh.flush() |
6261
7c8101b5ceb1
revlog: make sure the files are closed after an exception happens
Benoit Boissinot <benoit.boissinot@ens-lyon.org>
parents:
6228
diff
changeset
|
1851 try: |
7c8101b5ceb1
revlog: make sure the files are closed after an exception happens
Benoit Boissinot <benoit.boissinot@ens-lyon.org>
parents:
6228
diff
changeset
|
1852 # loop through our set of deltas |
7c8101b5ceb1
revlog: make sure the files are closed after an exception happens
Benoit Boissinot <benoit.boissinot@ens-lyon.org>
parents:
6228
diff
changeset
|
1853 chain = None |
29732
0806fa2a39d8
revlog: use `iter(callable, sentinel)` instead of while True
Augie Fackler <augie@google.com>
parents:
29396
diff
changeset
|
1854 for chunkdata in iter(lambda: cg.deltachunk(chain), {}): |
12336
9d234f7d8a77
bundle: move chunk parsing into unbundle class
Matt Mackall <mpm@selenic.com>
parents:
12335
diff
changeset
|
1855 node = chunkdata['node'] |
9d234f7d8a77
bundle: move chunk parsing into unbundle class
Matt Mackall <mpm@selenic.com>
parents:
12335
diff
changeset
|
1856 p1 = chunkdata['p1'] |
9d234f7d8a77
bundle: move chunk parsing into unbundle class
Matt Mackall <mpm@selenic.com>
parents:
12335
diff
changeset
|
1857 p2 = chunkdata['p2'] |
9d234f7d8a77
bundle: move chunk parsing into unbundle class
Matt Mackall <mpm@selenic.com>
parents:
12335
diff
changeset
|
1858 cs = chunkdata['cs'] |
14141
bd1cbfe5db5c
bundler: make parsechunk return the base revision of the delta
Benoit Boissinot <benoit.boissinot@ens-lyon.org>
parents:
14075
diff
changeset
|
1859 deltabase = chunkdata['deltabase'] |
bd1cbfe5db5c
bundler: make parsechunk return the base revision of the delta
Benoit Boissinot <benoit.boissinot@ens-lyon.org>
parents:
14075
diff
changeset
|
1860 delta = chunkdata['delta'] |
27433
12f727a5b434
changegroup: add flags field to cg3 delta header
Mike Edgar <adgar@google.com>
parents:
27431
diff
changeset
|
1861 flags = chunkdata['flags'] or REVIDX_DEFAULT_FLAGS |
12336
9d234f7d8a77
bundle: move chunk parsing into unbundle class
Matt Mackall <mpm@selenic.com>
parents:
12335
diff
changeset
|
1862 |
15890
e234eda20984
revlog: make addgroup returns a list of node contained in the added source
Pierre-Yves David <pierre-yves.david@ens-lyon.org>
parents:
15835
diff
changeset
|
1863 content.append(node) |
e234eda20984
revlog: make addgroup returns a list of node contained in the added source
Pierre-Yves David <pierre-yves.david@ens-lyon.org>
parents:
15835
diff
changeset
|
1864 |
6261
7c8101b5ceb1
revlog: make sure the files are closed after an exception happens
Benoit Boissinot <benoit.boissinot@ens-lyon.org>
parents:
6228
diff
changeset
|
1865 link = linkmapper(cs) |
14196
e7483ec3c374
revlog: remove support for punched/shallow
Sune Foldager <cryo@cyanite.org>
parents:
14195
diff
changeset
|
1866 if node in self.nodemap: |
6261
7c8101b5ceb1
revlog: make sure the files are closed after an exception happens
Benoit Boissinot <benoit.boissinot@ens-lyon.org>
parents:
6228
diff
changeset
|
1867 # this can happen if two branches make the same change |
7c8101b5ceb1
revlog: make sure the files are closed after an exception happens
Benoit Boissinot <benoit.boissinot@ens-lyon.org>
parents:
6228
diff
changeset
|
1868 chain = node |
7c8101b5ceb1
revlog: make sure the files are closed after an exception happens
Benoit Boissinot <benoit.boissinot@ens-lyon.org>
parents:
6228
diff
changeset
|
1869 continue |
192 | 1870 |
6261
7c8101b5ceb1
revlog: make sure the files are closed after an exception happens
Benoit Boissinot <benoit.boissinot@ens-lyon.org>
parents:
6228
diff
changeset
|
1871 for p in (p1, p2): |
16686
67964cda8701
cleanup: "not x in y" -> "x not in y"
Brodie Rao <brodie@sf.io>
parents:
16665
diff
changeset
|
1872 if p not in self.nodemap: |
14196
e7483ec3c374
revlog: remove support for punched/shallow
Sune Foldager <cryo@cyanite.org>
parents:
14195
diff
changeset
|
1873 raise LookupError(p, self.indexfile, |
e7483ec3c374
revlog: remove support for punched/shallow
Sune Foldager <cryo@cyanite.org>
parents:
14195
diff
changeset
|
1874 _('unknown parent')) |
46 | 1875 |
14141
bd1cbfe5db5c
bundler: make parsechunk return the base revision of the delta
Benoit Boissinot <benoit.boissinot@ens-lyon.org>
parents:
14075
diff
changeset
|
1876 if deltabase not in self.nodemap: |
bd1cbfe5db5c
bundler: make parsechunk return the base revision of the delta
Benoit Boissinot <benoit.boissinot@ens-lyon.org>
parents:
14075
diff
changeset
|
1877 raise LookupError(deltabase, self.indexfile, |
bd1cbfe5db5c
bundler: make parsechunk return the base revision of the delta
Benoit Boissinot <benoit.boissinot@ens-lyon.org>
parents:
14075
diff
changeset
|
1878 _('unknown delta base')) |
46 | 1879 |
14141
bd1cbfe5db5c
bundler: make parsechunk return the base revision of the delta
Benoit Boissinot <benoit.boissinot@ens-lyon.org>
parents:
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diff
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|
1880 baserev = self.rev(deltabase) |
24120
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revlog: in addgroup, reject ill-formed deltas based on censored nodes
Mike Edgar <adgar@google.com>
parents:
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diff
changeset
|
1881 |
a450e0a2ba0a
revlog: in addgroup, reject ill-formed deltas based on censored nodes
Mike Edgar <adgar@google.com>
parents:
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diff
changeset
|
1882 if baserev != nullrev and self.iscensored(baserev): |
a450e0a2ba0a
revlog: in addgroup, reject ill-formed deltas based on censored nodes
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parents:
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diff
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|
1883 # if base is censored, delta must be full replacement in a |
a450e0a2ba0a
revlog: in addgroup, reject ill-formed deltas based on censored nodes
Mike Edgar <adgar@google.com>
parents:
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diff
changeset
|
1884 # single patch operation |
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revlog: in addgroup, reject ill-formed deltas based on censored nodes
Mike Edgar <adgar@google.com>
parents:
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diff
changeset
|
1885 hlen = struct.calcsize(">lll") |
a450e0a2ba0a
revlog: in addgroup, reject ill-formed deltas based on censored nodes
Mike Edgar <adgar@google.com>
parents:
24118
diff
changeset
|
1886 oldlen = self.rawsize(baserev) |
a450e0a2ba0a
revlog: in addgroup, reject ill-formed deltas based on censored nodes
Mike Edgar <adgar@google.com>
parents:
24118
diff
changeset
|
1887 newlen = len(delta) - hlen |
a450e0a2ba0a
revlog: in addgroup, reject ill-formed deltas based on censored nodes
Mike Edgar <adgar@google.com>
parents:
24118
diff
changeset
|
1888 if delta[:hlen] != mdiff.replacediffheader(oldlen, newlen): |
a450e0a2ba0a
revlog: in addgroup, reject ill-formed deltas based on censored nodes
Mike Edgar <adgar@google.com>
parents:
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diff
changeset
|
1889 raise error.CensoredBaseError(self.indexfile, |
a450e0a2ba0a
revlog: in addgroup, reject ill-formed deltas based on censored nodes
Mike Edgar <adgar@google.com>
parents:
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diff
changeset
|
1890 self.node(baserev)) |
a450e0a2ba0a
revlog: in addgroup, reject ill-formed deltas based on censored nodes
Mike Edgar <adgar@google.com>
parents:
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diff
changeset
|
1891 |
27433
12f727a5b434
changegroup: add flags field to cg3 delta header
Mike Edgar <adgar@google.com>
parents:
27431
diff
changeset
|
1892 if not flags and self._peek_iscensored(baserev, delta, flush): |
24255
4bfe9f2d9761
revlog: addgroup checks if incoming deltas add censored revs, sets flag bit
Mike Edgar <adgar@google.com>
parents:
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diff
changeset
|
1893 flags |= REVIDX_ISCENSORED |
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parents:
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diff
changeset
|
1894 |
26243
836291420d53
revlog: optionally cache the full text when adding revisions
Gregory Szorc <gregory.szorc@gmail.com>
parents:
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diff
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|
1895 # We assume consumers of addrevisioncb will want to retrieve |
836291420d53
revlog: optionally cache the full text when adding revisions
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parents:
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|
1896 # the added revision, which will require a call to |
836291420d53
revlog: optionally cache the full text when adding revisions
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parents:
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diff
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|
1897 # revision(). revision() will fast path if there is a cache |
836291420d53
revlog: optionally cache the full text when adding revisions
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parents:
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diff
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|
1898 # hit. So, we tell _addrevision() to always cache in this case. |
30743
2df983125d37
revlog: add 'raw' argument to revision and _addrevision
Remi Chaintron <remi@fb.com>
parents:
30584
diff
changeset
|
1899 # We're only using addgroup() in the context of changegroup |
2df983125d37
revlog: add 'raw' argument to revision and _addrevision
Remi Chaintron <remi@fb.com>
parents:
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|
1900 # generation so the revision data can always be handled as raw |
2df983125d37
revlog: add 'raw' argument to revision and _addrevision
Remi Chaintron <remi@fb.com>
parents:
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diff
changeset
|
1901 # by the flagprocessor. |
12624
557988c691d1
revlog.addgroup(): always use _addrevision() to add new revlog entries
Benoit Boissinot <benoit.boissinot@ens-lyon.org>
parents:
12623
diff
changeset
|
1902 chain = self._addrevision(node, None, transaction, link, |
24255
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revlog: addgroup checks if incoming deltas add censored revs, sets flag bit
Mike Edgar <adgar@google.com>
parents:
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diff
changeset
|
1903 p1, p2, flags, (baserev, delta), |
26243
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revlog: optionally cache the full text when adding revisions
Gregory Szorc <gregory.szorc@gmail.com>
parents:
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diff
changeset
|
1904 ifh, dfh, |
31755
ec48d57de110
revlog: make _addrevision only accept rawtext
Jun Wu <quark@fb.com>
parents:
31754
diff
changeset
|
1905 alwayscache=bool(addrevisioncb)) |
25822
00e3f909907f
revlog: add support for a callback whenever revisions are added
Gregory Szorc <gregory.szorc@gmail.com>
parents:
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diff
changeset
|
1906 |
00e3f909907f
revlog: add support for a callback whenever revisions are added
Gregory Szorc <gregory.szorc@gmail.com>
parents:
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diff
changeset
|
1907 if addrevisioncb: |
00e3f909907f
revlog: add support for a callback whenever revisions are added
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parents:
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diff
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|
1908 addrevisioncb(self, chain) |
00e3f909907f
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parents:
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diff
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|
1909 |
12624
557988c691d1
revlog.addgroup(): always use _addrevision() to add new revlog entries
Benoit Boissinot <benoit.boissinot@ens-lyon.org>
parents:
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diff
changeset
|
1910 if not dfh and not self._inline: |
557988c691d1
revlog.addgroup(): always use _addrevision() to add new revlog entries
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parents:
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diff
changeset
|
1911 # addrevision switched from inline to conventional |
557988c691d1
revlog.addgroup(): always use _addrevision() to add new revlog entries
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parents:
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diff
changeset
|
1912 # reopen the index |
13400
14f3795a5ed7
explicitly close files
Dan Villiom Podlaski Christiansen <danchr@gmail.com>
parents:
13284
diff
changeset
|
1913 ifh.close() |
26378
e749707f0afb
revlog: always open revlogs for reading and appending
Gregory Szorc <gregory.szorc@gmail.com>
parents:
26377
diff
changeset
|
1914 dfh = self.opener(self.datafile, "a+") |
29997
b5e5ddf48bd2
revlog: specify checkambig at writing to avoid file stat ambiguity
FUJIWARA Katsunori <foozy@lares.dti.ne.jp>
parents:
29830
diff
changeset
|
1915 ifh = self.opener(self.indexfile, "a+", |
b5e5ddf48bd2
revlog: specify checkambig at writing to avoid file stat ambiguity
FUJIWARA Katsunori <foozy@lares.dti.ne.jp>
parents:
29830
diff
changeset
|
1916 checkambig=self._checkambig) |
6261
7c8101b5ceb1
revlog: make sure the files are closed after an exception happens
Benoit Boissinot <benoit.boissinot@ens-lyon.org>
parents:
6228
diff
changeset
|
1917 finally: |
7c8101b5ceb1
revlog: make sure the files are closed after an exception happens
Benoit Boissinot <benoit.boissinot@ens-lyon.org>
parents:
6228
diff
changeset
|
1918 if dfh: |
7c8101b5ceb1
revlog: make sure the files are closed after an exception happens
Benoit Boissinot <benoit.boissinot@ens-lyon.org>
parents:
6228
diff
changeset
|
1919 dfh.close() |
7c8101b5ceb1
revlog: make sure the files are closed after an exception happens
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parents:
6228
diff
changeset
|
1920 ifh.close() |
46 | 1921 |
15890
e234eda20984
revlog: make addgroup returns a list of node contained in the added source
Pierre-Yves David <pierre-yves.david@ens-lyon.org>
parents:
15835
diff
changeset
|
1922 return content |
1493
1a216cb4ee64
verify: add check for mismatch of index and data length
Matt Mackall <mpm@selenic.com>
parents:
1469
diff
changeset
|
1923 |
24118
76f6ae06ddf5
revlog: add "iscensored()" to revlog public API
Mike Edgar <adgar@google.com>
parents:
24030
diff
changeset
|
1924 def iscensored(self, rev): |
76f6ae06ddf5
revlog: add "iscensored()" to revlog public API
Mike Edgar <adgar@google.com>
parents:
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diff
changeset
|
1925 """Check if a file revision is censored.""" |
76f6ae06ddf5
revlog: add "iscensored()" to revlog public API
Mike Edgar <adgar@google.com>
parents:
24030
diff
changeset
|
1926 return False |
76f6ae06ddf5
revlog: add "iscensored()" to revlog public API
Mike Edgar <adgar@google.com>
parents:
24030
diff
changeset
|
1927 |
24255
4bfe9f2d9761
revlog: addgroup checks if incoming deltas add censored revs, sets flag bit
Mike Edgar <adgar@google.com>
parents:
24123
diff
changeset
|
1928 def _peek_iscensored(self, baserev, delta, flush): |
4bfe9f2d9761
revlog: addgroup checks if incoming deltas add censored revs, sets flag bit
Mike Edgar <adgar@google.com>
parents:
24123
diff
changeset
|
1929 """Quickly check if a delta produces a censored revision.""" |
4bfe9f2d9761
revlog: addgroup checks if incoming deltas add censored revs, sets flag bit
Mike Edgar <adgar@google.com>
parents:
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changeset
|
1930 return False |
4bfe9f2d9761
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Mike Edgar <adgar@google.com>
parents:
24123
diff
changeset
|
1931 |
20074
5fc2ae1c631b
strip: add faster revlog strip computation
Durham Goode <durham@fb.com>
parents:
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diff
changeset
|
1932 def getstrippoint(self, minlink): |
5fc2ae1c631b
strip: add faster revlog strip computation
Durham Goode <durham@fb.com>
parents:
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diff
changeset
|
1933 """find the minimum rev that must be stripped to strip the linkrev |
5fc2ae1c631b
strip: add faster revlog strip computation
Durham Goode <durham@fb.com>
parents:
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diff
changeset
|
1934 |
5fc2ae1c631b
strip: add faster revlog strip computation
Durham Goode <durham@fb.com>
parents:
20073
diff
changeset
|
1935 Returns a tuple containing the minimum rev and a set of all revs that |
5fc2ae1c631b
strip: add faster revlog strip computation
Durham Goode <durham@fb.com>
parents:
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diff
changeset
|
1936 have linkrevs that will be broken by this strip. |
5fc2ae1c631b
strip: add faster revlog strip computation
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parents:
20073
diff
changeset
|
1937 """ |
5fc2ae1c631b
strip: add faster revlog strip computation
Durham Goode <durham@fb.com>
parents:
20073
diff
changeset
|
1938 brokenrevs = set() |
5fc2ae1c631b
strip: add faster revlog strip computation
Durham Goode <durham@fb.com>
parents:
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diff
changeset
|
1939 strippoint = len(self) |
5fc2ae1c631b
strip: add faster revlog strip computation
Durham Goode <durham@fb.com>
parents:
20073
diff
changeset
|
1940 |
5fc2ae1c631b
strip: add faster revlog strip computation
Durham Goode <durham@fb.com>
parents:
20073
diff
changeset
|
1941 heads = {} |
5fc2ae1c631b
strip: add faster revlog strip computation
Durham Goode <durham@fb.com>
parents:
20073
diff
changeset
|
1942 futurelargelinkrevs = set() |
5fc2ae1c631b
strip: add faster revlog strip computation
Durham Goode <durham@fb.com>
parents:
20073
diff
changeset
|
1943 for head in self.headrevs(): |
5fc2ae1c631b
strip: add faster revlog strip computation
Durham Goode <durham@fb.com>
parents:
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diff
changeset
|
1944 headlinkrev = self.linkrev(head) |
5fc2ae1c631b
strip: add faster revlog strip computation
Durham Goode <durham@fb.com>
parents:
20073
diff
changeset
|
1945 heads[head] = headlinkrev |
5fc2ae1c631b
strip: add faster revlog strip computation
Durham Goode <durham@fb.com>
parents:
20073
diff
changeset
|
1946 if headlinkrev >= minlink: |
5fc2ae1c631b
strip: add faster revlog strip computation
Durham Goode <durham@fb.com>
parents:
20073
diff
changeset
|
1947 futurelargelinkrevs.add(headlinkrev) |
5fc2ae1c631b
strip: add faster revlog strip computation
Durham Goode <durham@fb.com>
parents:
20073
diff
changeset
|
1948 |
5fc2ae1c631b
strip: add faster revlog strip computation
Durham Goode <durham@fb.com>
parents:
20073
diff
changeset
|
1949 # This algorithm involves walking down the rev graph, starting at the |
5fc2ae1c631b
strip: add faster revlog strip computation
Durham Goode <durham@fb.com>
parents:
20073
diff
changeset
|
1950 # heads. Since the revs are topologically sorted according to linkrev, |
5fc2ae1c631b
strip: add faster revlog strip computation
Durham Goode <durham@fb.com>
parents:
20073
diff
changeset
|
1951 # once all head linkrevs are below the minlink, we know there are |
5fc2ae1c631b
strip: add faster revlog strip computation
Durham Goode <durham@fb.com>
parents:
20073
diff
changeset
|
1952 # no more revs that could have a linkrev greater than minlink. |
5fc2ae1c631b
strip: add faster revlog strip computation
Durham Goode <durham@fb.com>
parents:
20073
diff
changeset
|
1953 # So we can stop walking. |
5fc2ae1c631b
strip: add faster revlog strip computation
Durham Goode <durham@fb.com>
parents:
20073
diff
changeset
|
1954 while futurelargelinkrevs: |
5fc2ae1c631b
strip: add faster revlog strip computation
Durham Goode <durham@fb.com>
parents:
20073
diff
changeset
|
1955 strippoint -= 1 |
5fc2ae1c631b
strip: add faster revlog strip computation
Durham Goode <durham@fb.com>
parents:
20073
diff
changeset
|
1956 linkrev = heads.pop(strippoint) |
5fc2ae1c631b
strip: add faster revlog strip computation
Durham Goode <durham@fb.com>
parents:
20073
diff
changeset
|
1957 |
5fc2ae1c631b
strip: add faster revlog strip computation
Durham Goode <durham@fb.com>
parents:
20073
diff
changeset
|
1958 if linkrev < minlink: |
5fc2ae1c631b
strip: add faster revlog strip computation
Durham Goode <durham@fb.com>
parents:
20073
diff
changeset
|
1959 brokenrevs.add(strippoint) |
5fc2ae1c631b
strip: add faster revlog strip computation
Durham Goode <durham@fb.com>
parents:
20073
diff
changeset
|
1960 else: |
5fc2ae1c631b
strip: add faster revlog strip computation
Durham Goode <durham@fb.com>
parents:
20073
diff
changeset
|
1961 futurelargelinkrevs.remove(linkrev) |
5fc2ae1c631b
strip: add faster revlog strip computation
Durham Goode <durham@fb.com>
parents:
20073
diff
changeset
|
1962 |
5fc2ae1c631b
strip: add faster revlog strip computation
Durham Goode <durham@fb.com>
parents:
20073
diff
changeset
|
1963 for p in self.parentrevs(strippoint): |
5fc2ae1c631b
strip: add faster revlog strip computation
Durham Goode <durham@fb.com>
parents:
20073
diff
changeset
|
1964 if p != nullrev: |
5fc2ae1c631b
strip: add faster revlog strip computation
Durham Goode <durham@fb.com>
parents:
20073
diff
changeset
|
1965 plinkrev = self.linkrev(p) |
5fc2ae1c631b
strip: add faster revlog strip computation
Durham Goode <durham@fb.com>
parents:
20073
diff
changeset
|
1966 heads[p] = plinkrev |
5fc2ae1c631b
strip: add faster revlog strip computation
Durham Goode <durham@fb.com>
parents:
20073
diff
changeset
|
1967 if plinkrev >= minlink: |
5fc2ae1c631b
strip: add faster revlog strip computation
Durham Goode <durham@fb.com>
parents:
20073
diff
changeset
|
1968 futurelargelinkrevs.add(plinkrev) |
5fc2ae1c631b
strip: add faster revlog strip computation
Durham Goode <durham@fb.com>
parents:
20073
diff
changeset
|
1969 |
5fc2ae1c631b
strip: add faster revlog strip computation
Durham Goode <durham@fb.com>
parents:
20073
diff
changeset
|
1970 return strippoint, brokenrevs |
5fc2ae1c631b
strip: add faster revlog strip computation
Durham Goode <durham@fb.com>
parents:
20073
diff
changeset
|
1971 |
8073
e8a28556a0a8
strip: make repair.strip transactional to avoid repository corruption
Henrik Stuart <henrik.stuart@edlund.dk>
parents:
8017
diff
changeset
|
1972 def strip(self, minlink, transaction): |
5910
b9a830fa10f6
simplify revlog.strip interface and callers; add docstring
Alexis S. L. Carvalho <alexis@cecm.usp.br>
parents:
5909
diff
changeset
|
1973 """truncate the revlog on the first revision with a linkrev >= minlink |
b9a830fa10f6
simplify revlog.strip interface and callers; add docstring
Alexis S. L. Carvalho <alexis@cecm.usp.br>
parents:
5909
diff
changeset
|
1974 |
b9a830fa10f6
simplify revlog.strip interface and callers; add docstring
Alexis S. L. Carvalho <alexis@cecm.usp.br>
parents:
5909
diff
changeset
|
1975 This function is called when we're stripping revision minlink and |
b9a830fa10f6
simplify revlog.strip interface and callers; add docstring
Alexis S. L. Carvalho <alexis@cecm.usp.br>
parents:
5909
diff
changeset
|
1976 its descendants from the repository. |
b9a830fa10f6
simplify revlog.strip interface and callers; add docstring
Alexis S. L. Carvalho <alexis@cecm.usp.br>
parents:
5909
diff
changeset
|
1977 |
b9a830fa10f6
simplify revlog.strip interface and callers; add docstring
Alexis S. L. Carvalho <alexis@cecm.usp.br>
parents:
5909
diff
changeset
|
1978 We have to remove all revisions with linkrev >= minlink, because |
b9a830fa10f6
simplify revlog.strip interface and callers; add docstring
Alexis S. L. Carvalho <alexis@cecm.usp.br>
parents:
5909
diff
changeset
|
1979 the equivalent changelog revisions will be renumbered after the |
b9a830fa10f6
simplify revlog.strip interface and callers; add docstring
Alexis S. L. Carvalho <alexis@cecm.usp.br>
parents:
5909
diff
changeset
|
1980 strip. |
b9a830fa10f6
simplify revlog.strip interface and callers; add docstring
Alexis S. L. Carvalho <alexis@cecm.usp.br>
parents:
5909
diff
changeset
|
1981 |
b9a830fa10f6
simplify revlog.strip interface and callers; add docstring
Alexis S. L. Carvalho <alexis@cecm.usp.br>
parents:
5909
diff
changeset
|
1982 So we truncate the revlog on the first of these revisions, and |
b9a830fa10f6
simplify revlog.strip interface and callers; add docstring
Alexis S. L. Carvalho <alexis@cecm.usp.br>
parents:
5909
diff
changeset
|
1983 trust that the caller has saved the revisions that shouldn't be |
15827
1dacf7672556
revlog: clarify strip docstring "readd" -> "re-add"
Steven Brown <StevenGBrown@gmail.com>
parents:
15407
diff
changeset
|
1984 removed and that it'll re-add them after this truncation. |
5910
b9a830fa10f6
simplify revlog.strip interface and callers; add docstring
Alexis S. L. Carvalho <alexis@cecm.usp.br>
parents:
5909
diff
changeset
|
1985 """ |
6750
fb42030d79d6
add __len__ and __iter__ methods to repo and revlog
Matt Mackall <mpm@selenic.com>
parents:
6703
diff
changeset
|
1986 if len(self) == 0: |
1535
7ae0ce7a3dc4
Add revlog.strip to truncate away revisions.
mason@suse.com
parents:
1533
diff
changeset
|
1987 return |
7ae0ce7a3dc4
Add revlog.strip to truncate away revisions.
mason@suse.com
parents:
1533
diff
changeset
|
1988 |
20074
5fc2ae1c631b
strip: add faster revlog strip computation
Durham Goode <durham@fb.com>
parents:
20073
diff
changeset
|
1989 rev, _ = self.getstrippoint(minlink) |
5fc2ae1c631b
strip: add faster revlog strip computation
Durham Goode <durham@fb.com>
parents:
20073
diff
changeset
|
1990 if rev == len(self): |
5909
f45f7390c1c5
strip: calculate list of extra nodes to save and pass it to changegroupsubset
Alexis S. L. Carvalho <alexis@cecm.usp.br>
parents:
5659
diff
changeset
|
1991 return |
1535
7ae0ce7a3dc4
Add revlog.strip to truncate away revisions.
mason@suse.com
parents:
1533
diff
changeset
|
1992 |
7ae0ce7a3dc4
Add revlog.strip to truncate away revisions.
mason@suse.com
parents:
1533
diff
changeset
|
1993 # first truncate the files on disk |
7ae0ce7a3dc4
Add revlog.strip to truncate away revisions.
mason@suse.com
parents:
1533
diff
changeset
|
1994 end = self.start(rev) |
4982
9672e3c42b0c
revlog: change _inline from a function to a variable
Matt Mackall <mpm@selenic.com>
parents:
4981
diff
changeset
|
1995 if not self._inline: |
8073
e8a28556a0a8
strip: make repair.strip transactional to avoid repository corruption
Henrik Stuart <henrik.stuart@edlund.dk>
parents:
8017
diff
changeset
|
1996 transaction.add(self.datafile, end) |
4977
6cb30bc4ca32
revlog: parse revlogv0 indexes into v1 internally
Matt Mackall <mpm@selenic.com>
parents:
4976
diff
changeset
|
1997 end = rev * self._io.size |
2073 | 1998 else: |
4977
6cb30bc4ca32
revlog: parse revlogv0 indexes into v1 internally
Matt Mackall <mpm@selenic.com>
parents:
4976
diff
changeset
|
1999 end += rev * self._io.size |
2072 | 2000 |
8073
e8a28556a0a8
strip: make repair.strip transactional to avoid repository corruption
Henrik Stuart <henrik.stuart@edlund.dk>
parents:
8017
diff
changeset
|
2001 transaction.add(self.indexfile, end) |
1535
7ae0ce7a3dc4
Add revlog.strip to truncate away revisions.
mason@suse.com
parents:
1533
diff
changeset
|
2002 |
7ae0ce7a3dc4
Add revlog.strip to truncate away revisions.
mason@suse.com
parents:
1533
diff
changeset
|
2003 # then reset internal state in memory to forget those revisions |
4984 | 2004 self._cache = None |
23306
f7a42f8e82bd
revlog: cache chain info after calculating it for a rev (issue4452)
Siddharth Agarwal <sid0@fb.com>
parents:
23288
diff
changeset
|
2005 self._chaininfocache = {} |
8650
ef393d6ec030
revlog: refactor chunk cache interface again
Matt Mackall <mpm@selenic.com>
parents:
8643
diff
changeset
|
2006 self._chunkclear() |
6750
fb42030d79d6
add __len__ and __iter__ methods to repo and revlog
Matt Mackall <mpm@selenic.com>
parents:
6703
diff
changeset
|
2007 for x in xrange(rev, len(self)): |
2072 | 2008 del self.nodemap[self.node(x)] |
1535
7ae0ce7a3dc4
Add revlog.strip to truncate away revisions.
mason@suse.com
parents:
1533
diff
changeset
|
2009 |
4979
06abdaf78788
revlog: add a magic null revision to our index
Matt Mackall <mpm@selenic.com>
parents:
4978
diff
changeset
|
2010 del self.index[rev:-1] |
1535
7ae0ce7a3dc4
Add revlog.strip to truncate away revisions.
mason@suse.com
parents:
1533
diff
changeset
|
2011 |
1493
1a216cb4ee64
verify: add check for mismatch of index and data length
Matt Mackall <mpm@selenic.com>
parents:
1469
diff
changeset
|
2012 def checksize(self): |
1a216cb4ee64
verify: add check for mismatch of index and data length
Matt Mackall <mpm@selenic.com>
parents:
1469
diff
changeset
|
2013 expected = 0 |
6750
fb42030d79d6
add __len__ and __iter__ methods to repo and revlog
Matt Mackall <mpm@selenic.com>
parents:
6703
diff
changeset
|
2014 if len(self): |
fb42030d79d6
add __len__ and __iter__ methods to repo and revlog
Matt Mackall <mpm@selenic.com>
parents:
6703
diff
changeset
|
2015 expected = max(0, self.end(len(self) - 1)) |
1667
daff3ef0de8d
verify: notice extra data in indices
Matt Mackall <mpm@selenic.com>
parents:
1660
diff
changeset
|
2016 |
1494
249ca10d37f4
Handle empty logs in repo.checksize
Matt Mackall <mpm@selenic.com>
parents:
1493
diff
changeset
|
2017 try: |
249ca10d37f4
Handle empty logs in repo.checksize
Matt Mackall <mpm@selenic.com>
parents:
1493
diff
changeset
|
2018 f = self.opener(self.datafile) |
249ca10d37f4
Handle empty logs in repo.checksize
Matt Mackall <mpm@selenic.com>
parents:
1493
diff
changeset
|
2019 f.seek(0, 2) |
249ca10d37f4
Handle empty logs in repo.checksize
Matt Mackall <mpm@selenic.com>
parents:
1493
diff
changeset
|
2020 actual = f.tell() |
13400
14f3795a5ed7
explicitly close files
Dan Villiom Podlaski Christiansen <danchr@gmail.com>
parents:
13284
diff
changeset
|
2021 f.close() |
1667
daff3ef0de8d
verify: notice extra data in indices
Matt Mackall <mpm@selenic.com>
parents:
1660
diff
changeset
|
2022 dd = actual - expected |
25660
328739ea70c3
global: mass rewrite to use modern exception syntax
Gregory Szorc <gregory.szorc@gmail.com>
parents:
25459
diff
changeset
|
2023 except IOError as inst: |
1667
daff3ef0de8d
verify: notice extra data in indices
Matt Mackall <mpm@selenic.com>
parents:
1660
diff
changeset
|
2024 if inst.errno != errno.ENOENT: |
daff3ef0de8d
verify: notice extra data in indices
Matt Mackall <mpm@selenic.com>
parents:
1660
diff
changeset
|
2025 raise |
daff3ef0de8d
verify: notice extra data in indices
Matt Mackall <mpm@selenic.com>
parents:
1660
diff
changeset
|
2026 dd = 0 |
daff3ef0de8d
verify: notice extra data in indices
Matt Mackall <mpm@selenic.com>
parents:
1660
diff
changeset
|
2027 |
daff3ef0de8d
verify: notice extra data in indices
Matt Mackall <mpm@selenic.com>
parents:
1660
diff
changeset
|
2028 try: |
daff3ef0de8d
verify: notice extra data in indices
Matt Mackall <mpm@selenic.com>
parents:
1660
diff
changeset
|
2029 f = self.opener(self.indexfile) |
daff3ef0de8d
verify: notice extra data in indices
Matt Mackall <mpm@selenic.com>
parents:
1660
diff
changeset
|
2030 f.seek(0, 2) |
daff3ef0de8d
verify: notice extra data in indices
Matt Mackall <mpm@selenic.com>
parents:
1660
diff
changeset
|
2031 actual = f.tell() |
13400
14f3795a5ed7
explicitly close files
Dan Villiom Podlaski Christiansen <danchr@gmail.com>
parents:
13284
diff
changeset
|
2032 f.close() |
4977
6cb30bc4ca32
revlog: parse revlogv0 indexes into v1 internally
Matt Mackall <mpm@selenic.com>
parents:
4976
diff
changeset
|
2033 s = self._io.size |
9029
0001e49f1c11
compat: use // for integer division
Alejandro Santos <alejolp@alejolp.com>
parents:
8658
diff
changeset
|
2034 i = max(0, actual // s) |
1667
daff3ef0de8d
verify: notice extra data in indices
Matt Mackall <mpm@selenic.com>
parents:
1660
diff
changeset
|
2035 di = actual - (i * s) |
4982
9672e3c42b0c
revlog: change _inline from a function to a variable
Matt Mackall <mpm@selenic.com>
parents:
4981
diff
changeset
|
2036 if self._inline: |
2073 | 2037 databytes = 0 |
6750
fb42030d79d6
add __len__ and __iter__ methods to repo and revlog
Matt Mackall <mpm@selenic.com>
parents:
6703
diff
changeset
|
2038 for r in self: |
5312
fb070713ff36
revlog: more robust for damaged indexes
Matt Mackall <mpm@selenic.com>
parents:
5007
diff
changeset
|
2039 databytes += max(0, self.length(r)) |
2073 | 2040 dd = 0 |
6750
fb42030d79d6
add __len__ and __iter__ methods to repo and revlog
Matt Mackall <mpm@selenic.com>
parents:
6703
diff
changeset
|
2041 di = actual - len(self) * s - databytes |
25660
328739ea70c3
global: mass rewrite to use modern exception syntax
Gregory Szorc <gregory.szorc@gmail.com>
parents:
25459
diff
changeset
|
2042 except IOError as inst: |
1667
daff3ef0de8d
verify: notice extra data in indices
Matt Mackall <mpm@selenic.com>
parents:
1660
diff
changeset
|
2043 if inst.errno != errno.ENOENT: |
daff3ef0de8d
verify: notice extra data in indices
Matt Mackall <mpm@selenic.com>
parents:
1660
diff
changeset
|
2044 raise |
daff3ef0de8d
verify: notice extra data in indices
Matt Mackall <mpm@selenic.com>
parents:
1660
diff
changeset
|
2045 di = 0 |
daff3ef0de8d
verify: notice extra data in indices
Matt Mackall <mpm@selenic.com>
parents:
1660
diff
changeset
|
2046 |
daff3ef0de8d
verify: notice extra data in indices
Matt Mackall <mpm@selenic.com>
parents:
1660
diff
changeset
|
2047 return (dd, di) |
6891
22cb82433842
revlog: add files method
Adrian Buehlmann <adrian@cadifra.com>
parents:
6872
diff
changeset
|
2048 |
22cb82433842
revlog: add files method
Adrian Buehlmann <adrian@cadifra.com>
parents:
6872
diff
changeset
|
2049 def files(self): |
10282
08a0f04b56bd
many, many trivial check-code fixups
Matt Mackall <mpm@selenic.com>
parents:
10264
diff
changeset
|
2050 res = [self.indexfile] |
6891
22cb82433842
revlog: add files method
Adrian Buehlmann <adrian@cadifra.com>
parents:
6872
diff
changeset
|
2051 if not self._inline: |
22cb82433842
revlog: add files method
Adrian Buehlmann <adrian@cadifra.com>
parents:
6872
diff
changeset
|
2052 res.append(self.datafile) |
22cb82433842
revlog: add files method
Adrian Buehlmann <adrian@cadifra.com>
parents:
6872
diff
changeset
|
2053 return res |
30778
1c7368d1a25f
revlog: add clone method
Gregory Szorc <gregory.szorc@gmail.com>
parents:
30746
diff
changeset
|
2054 |
1c7368d1a25f
revlog: add clone method
Gregory Szorc <gregory.szorc@gmail.com>
parents:
30746
diff
changeset
|
2055 DELTAREUSEALWAYS = 'always' |
1c7368d1a25f
revlog: add clone method
Gregory Szorc <gregory.szorc@gmail.com>
parents:
30746
diff
changeset
|
2056 DELTAREUSESAMEREVS = 'samerevs' |
1c7368d1a25f
revlog: add clone method
Gregory Szorc <gregory.szorc@gmail.com>
parents:
30746
diff
changeset
|
2057 DELTAREUSENEVER = 'never' |
1c7368d1a25f
revlog: add clone method
Gregory Szorc <gregory.szorc@gmail.com>
parents:
30746
diff
changeset
|
2058 |
32291
bd872f64a8ba
cleanup: use set literals
Martin von Zweigbergk <martinvonz@google.com>
parents:
32286
diff
changeset
|
2059 DELTAREUSEALL = {'always', 'samerevs', 'never'} |
30778
1c7368d1a25f
revlog: add clone method
Gregory Szorc <gregory.szorc@gmail.com>
parents:
30746
diff
changeset
|
2060 |
1c7368d1a25f
revlog: add clone method
Gregory Szorc <gregory.szorc@gmail.com>
parents:
30746
diff
changeset
|
2061 def clone(self, tr, destrevlog, addrevisioncb=None, |
1c7368d1a25f
revlog: add clone method
Gregory Szorc <gregory.szorc@gmail.com>
parents:
30746
diff
changeset
|
2062 deltareuse=DELTAREUSESAMEREVS, aggressivemergedeltas=None): |
1c7368d1a25f
revlog: add clone method
Gregory Szorc <gregory.szorc@gmail.com>
parents:
30746
diff
changeset
|
2063 """Copy this revlog to another, possibly with format changes. |
1c7368d1a25f
revlog: add clone method
Gregory Szorc <gregory.szorc@gmail.com>
parents:
30746
diff
changeset
|
2064 |
1c7368d1a25f
revlog: add clone method
Gregory Szorc <gregory.szorc@gmail.com>
parents:
30746
diff
changeset
|
2065 The destination revlog will contain the same revisions and nodes. |
1c7368d1a25f
revlog: add clone method
Gregory Szorc <gregory.szorc@gmail.com>
parents:
30746
diff
changeset
|
2066 However, it may not be bit-for-bit identical due to e.g. delta encoding |
1c7368d1a25f
revlog: add clone method
Gregory Szorc <gregory.szorc@gmail.com>
parents:
30746
diff
changeset
|
2067 differences. |
1c7368d1a25f
revlog: add clone method
Gregory Szorc <gregory.szorc@gmail.com>
parents:
30746
diff
changeset
|
2068 |
1c7368d1a25f
revlog: add clone method
Gregory Szorc <gregory.szorc@gmail.com>
parents:
30746
diff
changeset
|
2069 The ``deltareuse`` argument control how deltas from the existing revlog |
1c7368d1a25f
revlog: add clone method
Gregory Szorc <gregory.szorc@gmail.com>
parents:
30746
diff
changeset
|
2070 are preserved in the destination revlog. The argument can have the |
1c7368d1a25f
revlog: add clone method
Gregory Szorc <gregory.szorc@gmail.com>
parents:
30746
diff
changeset
|
2071 following values: |
1c7368d1a25f
revlog: add clone method
Gregory Szorc <gregory.szorc@gmail.com>
parents:
30746
diff
changeset
|
2072 |
1c7368d1a25f
revlog: add clone method
Gregory Szorc <gregory.szorc@gmail.com>
parents:
30746
diff
changeset
|
2073 DELTAREUSEALWAYS |
1c7368d1a25f
revlog: add clone method
Gregory Szorc <gregory.szorc@gmail.com>
parents:
30746
diff
changeset
|
2074 Deltas will always be reused (if possible), even if the destination |
1c7368d1a25f
revlog: add clone method
Gregory Szorc <gregory.szorc@gmail.com>
parents:
30746
diff
changeset
|
2075 revlog would not select the same revisions for the delta. This is the |
1c7368d1a25f
revlog: add clone method
Gregory Szorc <gregory.szorc@gmail.com>
parents:
30746
diff
changeset
|
2076 fastest mode of operation. |
1c7368d1a25f
revlog: add clone method
Gregory Szorc <gregory.szorc@gmail.com>
parents:
30746
diff
changeset
|
2077 DELTAREUSESAMEREVS |
1c7368d1a25f
revlog: add clone method
Gregory Szorc <gregory.szorc@gmail.com>
parents:
30746
diff
changeset
|
2078 Deltas will be reused if the destination revlog would pick the same |
1c7368d1a25f
revlog: add clone method
Gregory Szorc <gregory.szorc@gmail.com>
parents:
30746
diff
changeset
|
2079 revisions for the delta. This mode strikes a balance between speed |
1c7368d1a25f
revlog: add clone method
Gregory Szorc <gregory.szorc@gmail.com>
parents:
30746
diff
changeset
|
2080 and optimization. |
1c7368d1a25f
revlog: add clone method
Gregory Szorc <gregory.szorc@gmail.com>
parents:
30746
diff
changeset
|
2081 DELTAREUSENEVER |
1c7368d1a25f
revlog: add clone method
Gregory Szorc <gregory.szorc@gmail.com>
parents:
30746
diff
changeset
|
2082 Deltas will never be reused. This is the slowest mode of execution. |
1c7368d1a25f
revlog: add clone method
Gregory Szorc <gregory.szorc@gmail.com>
parents:
30746
diff
changeset
|
2083 This mode can be used to recompute deltas (e.g. if the diff/delta |
1c7368d1a25f
revlog: add clone method
Gregory Szorc <gregory.szorc@gmail.com>
parents:
30746
diff
changeset
|
2084 algorithm changes). |
1c7368d1a25f
revlog: add clone method
Gregory Szorc <gregory.szorc@gmail.com>
parents:
30746
diff
changeset
|
2085 |
1c7368d1a25f
revlog: add clone method
Gregory Szorc <gregory.szorc@gmail.com>
parents:
30746
diff
changeset
|
2086 Delta computation can be slow, so the choice of delta reuse policy can |
1c7368d1a25f
revlog: add clone method
Gregory Szorc <gregory.szorc@gmail.com>
parents:
30746
diff
changeset
|
2087 significantly affect run time. |
1c7368d1a25f
revlog: add clone method
Gregory Szorc <gregory.szorc@gmail.com>
parents:
30746
diff
changeset
|
2088 |
1c7368d1a25f
revlog: add clone method
Gregory Szorc <gregory.szorc@gmail.com>
parents:
30746
diff
changeset
|
2089 The default policy (``DELTAREUSESAMEREVS``) strikes a balance between |
1c7368d1a25f
revlog: add clone method
Gregory Szorc <gregory.szorc@gmail.com>
parents:
30746
diff
changeset
|
2090 two extremes. Deltas will be reused if they are appropriate. But if the |
1c7368d1a25f
revlog: add clone method
Gregory Szorc <gregory.szorc@gmail.com>
parents:
30746
diff
changeset
|
2091 delta could choose a better revision, it will do so. This means if you |
1c7368d1a25f
revlog: add clone method
Gregory Szorc <gregory.szorc@gmail.com>
parents:
30746
diff
changeset
|
2092 are converting a non-generaldelta revlog to a generaldelta revlog, |
1c7368d1a25f
revlog: add clone method
Gregory Szorc <gregory.szorc@gmail.com>
parents:
30746
diff
changeset
|
2093 deltas will be recomputed if the delta's parent isn't a parent of the |
1c7368d1a25f
revlog: add clone method
Gregory Szorc <gregory.szorc@gmail.com>
parents:
30746
diff
changeset
|
2094 revision. |
1c7368d1a25f
revlog: add clone method
Gregory Szorc <gregory.szorc@gmail.com>
parents:
30746
diff
changeset
|
2095 |
1c7368d1a25f
revlog: add clone method
Gregory Szorc <gregory.szorc@gmail.com>
parents:
30746
diff
changeset
|
2096 In addition to the delta policy, the ``aggressivemergedeltas`` argument |
1c7368d1a25f
revlog: add clone method
Gregory Szorc <gregory.szorc@gmail.com>
parents:
30746
diff
changeset
|
2097 controls whether to compute deltas against both parents for merges. |
1c7368d1a25f
revlog: add clone method
Gregory Szorc <gregory.szorc@gmail.com>
parents:
30746
diff
changeset
|
2098 By default, the current default is used. |
1c7368d1a25f
revlog: add clone method
Gregory Szorc <gregory.szorc@gmail.com>
parents:
30746
diff
changeset
|
2099 """ |
1c7368d1a25f
revlog: add clone method
Gregory Szorc <gregory.szorc@gmail.com>
parents:
30746
diff
changeset
|
2100 if deltareuse not in self.DELTAREUSEALL: |
1c7368d1a25f
revlog: add clone method
Gregory Szorc <gregory.szorc@gmail.com>
parents:
30746
diff
changeset
|
2101 raise ValueError(_('value for deltareuse invalid: %s') % deltareuse) |
1c7368d1a25f
revlog: add clone method
Gregory Szorc <gregory.szorc@gmail.com>
parents:
30746
diff
changeset
|
2102 |
1c7368d1a25f
revlog: add clone method
Gregory Szorc <gregory.szorc@gmail.com>
parents:
30746
diff
changeset
|
2103 if len(destrevlog): |
1c7368d1a25f
revlog: add clone method
Gregory Szorc <gregory.szorc@gmail.com>
parents:
30746
diff
changeset
|
2104 raise ValueError(_('destination revlog is not empty')) |
1c7368d1a25f
revlog: add clone method
Gregory Szorc <gregory.szorc@gmail.com>
parents:
30746
diff
changeset
|
2105 |
1c7368d1a25f
revlog: add clone method
Gregory Szorc <gregory.szorc@gmail.com>
parents:
30746
diff
changeset
|
2106 if getattr(self, 'filteredrevs', None): |
1c7368d1a25f
revlog: add clone method
Gregory Szorc <gregory.szorc@gmail.com>
parents:
30746
diff
changeset
|
2107 raise ValueError(_('source revlog has filtered revisions')) |
1c7368d1a25f
revlog: add clone method
Gregory Szorc <gregory.szorc@gmail.com>
parents:
30746
diff
changeset
|
2108 if getattr(destrevlog, 'filteredrevs', None): |
1c7368d1a25f
revlog: add clone method
Gregory Szorc <gregory.szorc@gmail.com>
parents:
30746
diff
changeset
|
2109 raise ValueError(_('destination revlog has filtered revisions')) |
1c7368d1a25f
revlog: add clone method
Gregory Szorc <gregory.szorc@gmail.com>
parents:
30746
diff
changeset
|
2110 |
1c7368d1a25f
revlog: add clone method
Gregory Szorc <gregory.szorc@gmail.com>
parents:
30746
diff
changeset
|
2111 # lazydeltabase controls whether to reuse a cached delta, if possible. |
1c7368d1a25f
revlog: add clone method
Gregory Szorc <gregory.szorc@gmail.com>
parents:
30746
diff
changeset
|
2112 oldlazydeltabase = destrevlog._lazydeltabase |
1c7368d1a25f
revlog: add clone method
Gregory Szorc <gregory.szorc@gmail.com>
parents:
30746
diff
changeset
|
2113 oldamd = destrevlog._aggressivemergedeltas |
1c7368d1a25f
revlog: add clone method
Gregory Szorc <gregory.szorc@gmail.com>
parents:
30746
diff
changeset
|
2114 |
1c7368d1a25f
revlog: add clone method
Gregory Szorc <gregory.szorc@gmail.com>
parents:
30746
diff
changeset
|
2115 try: |
1c7368d1a25f
revlog: add clone method
Gregory Szorc <gregory.szorc@gmail.com>
parents:
30746
diff
changeset
|
2116 if deltareuse == self.DELTAREUSEALWAYS: |
1c7368d1a25f
revlog: add clone method
Gregory Szorc <gregory.szorc@gmail.com>
parents:
30746
diff
changeset
|
2117 destrevlog._lazydeltabase = True |
1c7368d1a25f
revlog: add clone method
Gregory Szorc <gregory.szorc@gmail.com>
parents:
30746
diff
changeset
|
2118 elif deltareuse == self.DELTAREUSESAMEREVS: |
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2119 destrevlog._lazydeltabase = False |
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2120 |
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2121 destrevlog._aggressivemergedeltas = aggressivemergedeltas or oldamd |
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2122 |
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2123 populatecachedelta = deltareuse in (self.DELTAREUSEALWAYS, |
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2124 self.DELTAREUSESAMEREVS) |
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2125 |
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2126 index = self.index |
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2127 for rev in self: |
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2128 entry = index[rev] |
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2129 |
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2130 # Some classes override linkrev to take filtered revs into |
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2131 # account. Use raw entry from index. |
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2132 flags = entry[0] & 0xffff |
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2133 linkrev = entry[4] |
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2134 p1 = index[entry[5]][7] |
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2135 p2 = index[entry[6]][7] |
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2136 node = entry[7] |
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2137 |
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2138 # (Possibly) reuse the delta from the revlog if allowed and |
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2139 # the revlog chunk is a delta. |
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2140 cachedelta = None |
31754 | 2141 rawtext = None |
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2142 if populatecachedelta: |
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2143 dp = self.deltaparent(rev) |
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2144 if dp != nullrev: |
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2145 cachedelta = (dp, str(self._chunk(rev))) |
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2146 |
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2147 if not cachedelta: |
31754 | 2148 rawtext = self.revision(rev, raw=True) |
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2149 |
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2150 ifh = destrevlog.opener(destrevlog.indexfile, 'a+', |
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2151 checkambig=False) |
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2152 dfh = None |
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2153 if not destrevlog._inline: |
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2154 dfh = destrevlog.opener(destrevlog.datafile, 'a+') |
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2155 try: |
31754 | 2156 destrevlog._addrevision(node, rawtext, tr, linkrev, p1, p2, |
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2157 flags, cachedelta, ifh, dfh) |
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2158 finally: |
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2159 if dfh: |
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2160 dfh.close() |
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2161 ifh.close() |
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2162 |
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2163 if addrevisioncb: |
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2164 addrevisioncb(self, rev, node) |
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2165 finally: |
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2166 destrevlog._lazydeltabase = oldlazydeltabase |
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2167 destrevlog._aggressivemergedeltas = oldamd |