Mercurial > hg
annotate mercurial/revlog.py @ 15292:7fa471248185 stable
discovery: Fix error print mentioning a 'None' branch
When talking to old server discovery use heads of the 'None' branch to refer to
topological heads. This use of None should never make it to the end user.
author | Pierre-Yves David <pierre-yves.david@logilab.fr> |
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date | Mon, 17 Oct 2011 11:37:59 +0200 |
parents | 774da7121fc9 |
children | ee112eb69d2a |
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 # import stuff from node for others to import from revlog |
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15 from node import bin, hex, nullid, nullrev |
3891 | 16 from i18n import _ |
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17 import ancestor, mdiff, parsers, error, util, dagutil |
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18 import struct, zlib, errno |
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19 |
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20 _pack = struct.pack |
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21 _unpack = struct.unpack |
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22 _compress = zlib.compress |
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23 _decompress = zlib.decompress |
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24 _sha = util.sha1 |
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25 |
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26 # revlog header flags |
2072 | 27 REVLOGV0 = 0 |
28 REVLOGNG = 1 | |
2073 | 29 REVLOGNGINLINEDATA = (1 << 16) |
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30 REVLOGGENERALDELTA = (1 << 17) |
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31 REVLOG_DEFAULT_FLAGS = REVLOGNGINLINEDATA |
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32 REVLOG_DEFAULT_FORMAT = REVLOGNG |
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33 REVLOG_DEFAULT_VERSION = REVLOG_DEFAULT_FORMAT | REVLOG_DEFAULT_FLAGS |
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34 REVLOGNG_FLAGS = REVLOGNGINLINEDATA | REVLOGGENERALDELTA |
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35 |
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36 # revlog index flags |
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37 REVIDX_KNOWN_FLAGS = 0 |
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39 # max size of revlog with inline data |
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40 _maxinline = 131072 |
13253 | 41 _chunksize = 1048576 |
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42 |
7633 | 43 RevlogError = error.RevlogError |
44 LookupError = error.LookupError | |
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45 |
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46 def getoffset(q): |
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47 return int(q >> 16) |
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48 |
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49 def gettype(q): |
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50 return int(q & 0xFFFF) |
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51 |
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52 def offset_type(offset, type): |
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53 return long(long(offset) << 16 | type) |
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54 |
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55 nullhash = _sha(nullid) |
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56 |
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57 def hash(text, p1, p2): |
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58 """generate a hash from the given text and its parent hashes |
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59 |
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60 This hash combines both the current file contents and its history |
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61 in a manner that makes it easy to distinguish nodes with the same |
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62 content in the revision graph. |
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63 """ |
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64 # As of now, if one of the parent node is null, p2 is null |
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65 if p2 == nullid: |
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66 # deep copy of a hash is faster than creating one |
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67 s = nullhash.copy() |
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68 s.update(p1) |
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69 else: |
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70 # none of the parent nodes are nullid |
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71 l = [p1, p2] |
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72 l.sort() |
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73 s = _sha(l[0]) |
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74 s.update(l[1]) |
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75 s.update(text) |
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76 return s.digest() |
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77 |
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78 def compress(text): |
1083 | 79 """ generate a possibly-compressed representation of text """ |
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80 if not text: |
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81 return ("", text) |
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82 l = len(text) |
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83 bin = None |
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84 if l < 44: |
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85 pass |
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86 elif l > 1000000: |
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87 # zlib makes an internal copy, thus doubling memory usage for |
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88 # large files, so lets do this in pieces |
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89 z = zlib.compressobj() |
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90 p = [] |
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91 pos = 0 |
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92 while pos < l: |
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93 pos2 = pos + 2**20 |
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94 p.append(z.compress(text[pos:pos2])) |
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95 pos = pos2 |
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96 p.append(z.flush()) |
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97 if sum(map(len, p)) < l: |
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98 bin = "".join(p) |
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99 else: |
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100 bin = _compress(text) |
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101 if bin is None or len(bin) > l: |
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102 if text[0] == '\0': |
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103 return ("", text) |
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104 return ('u', text) |
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105 return ("", bin) |
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106 |
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107 def decompress(bin): |
1083 | 108 """ decompress the given input """ |
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109 if not bin: |
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110 return bin |
112 | 111 t = bin[0] |
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112 if t == '\0': |
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113 return bin |
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114 if t == 'x': |
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115 return _decompress(bin) |
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116 if t == 'u': |
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117 return bin[1:] |
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118 raise RevlogError(_("unknown compression type %r") % t) |
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119 |
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120 indexformatv0 = ">4l20s20s20s" |
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121 v0shaoffset = 56 |
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122 |
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123 class revlogoldio(object): |
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124 def __init__(self): |
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125 self.size = struct.calcsize(indexformatv0) |
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126 |
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127 def parseindex(self, data, inline): |
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128 s = self.size |
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129 index = [] |
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130 nodemap = {nullid: nullrev} |
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131 n = off = 0 |
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132 l = len(data) |
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133 while off + s <= l: |
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134 cur = data[off:off + s] |
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135 off += s |
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136 e = _unpack(indexformatv0, cur) |
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137 # transform to revlogv1 format |
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138 e2 = (offset_type(e[0], 0), e[1], -1, e[2], e[3], |
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139 nodemap.get(e[4], nullrev), nodemap.get(e[5], nullrev), e[6]) |
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140 index.append(e2) |
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141 nodemap[e[6]] = n |
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142 n += 1 |
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143 |
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144 # add the magic null revision at -1 |
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145 index.append((0, 0, 0, -1, -1, -1, -1, nullid)) |
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146 |
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147 return index, nodemap, None |
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148 |
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149 def packentry(self, entry, node, version, rev): |
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150 if gettype(entry[0]): |
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151 raise RevlogError(_("index entry flags need RevlogNG")) |
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152 e2 = (getoffset(entry[0]), entry[1], entry[3], entry[4], |
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153 node(entry[5]), node(entry[6]), entry[7]) |
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154 return _pack(indexformatv0, *e2) |
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155 |
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156 # index ng: |
11323
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157 # 6 bytes: offset |
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158 # 2 bytes: flags |
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159 # 4 bytes: compressed length |
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160 # 4 bytes: uncompressed length |
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161 # 4 bytes: base rev |
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162 # 4 bytes: link rev |
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163 # 4 bytes: parent 1 rev |
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164 # 4 bytes: parent 2 rev |
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165 # 32 bytes: nodeid |
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166 indexformatng = ">Qiiiiii20s12x" |
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167 ngshaoffset = 32 |
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168 versionformat = ">I" |
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169 |
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170 class revlogio(object): |
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171 def __init__(self): |
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172 self.size = struct.calcsize(indexformatng) |
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173 |
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174 def parseindex(self, data, inline): |
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175 # call the C implementation to parse the index data |
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176 index, cache = parsers.parse_index2(data, inline) |
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177 return index, None, cache |
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178 |
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179 def packentry(self, entry, node, version, rev): |
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180 p = _pack(indexformatng, *entry) |
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181 if rev == 0: |
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182 p = _pack(versionformat, version) + p[4:] |
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183 return p |
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184 |
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185 class revlog(object): |
1083 | 186 """ |
187 the underlying revision storage object | |
188 | |
189 A revlog consists of two parts, an index and the revision data. | |
190 | |
191 The index is a file with a fixed record size containing | |
6912 | 192 information on each revision, including its nodeid (hash), the |
1083 | 193 nodeids of its parents, the position and offset of its data within |
194 the data file, and the revision it's based on. Finally, each entry | |
195 contains a linkrev entry that can serve as a pointer to external | |
196 data. | |
197 | |
198 The revision data itself is a linear collection of data chunks. | |
199 Each chunk represents a revision and is usually represented as a | |
200 delta against the previous chunk. To bound lookup time, runs of | |
201 deltas are limited to about 2 times the length of the original | |
202 version data. This makes retrieval of a version proportional to | |
203 its size, or O(1) relative to the number of revisions. | |
204 | |
205 Both pieces of the revlog are written to in an append-only | |
206 fashion, which means we never need to rewrite a file to insert or | |
207 remove data, and can use some simple techniques to avoid the need | |
208 for locking while reading. | |
209 """ | |
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210 def __init__(self, opener, indexfile): |
1083 | 211 """ |
212 create a revlog object | |
213 | |
214 opener is a function that abstracts the file opening operation | |
215 and can be used to implement COW semantics or the like. | |
216 """ | |
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217 self.indexfile = indexfile |
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218 self.datafile = indexfile[:-2] + ".d" |
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219 self.opener = opener |
4984 | 220 self._cache = None |
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221 self._basecache = (0, 0) |
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222 self._chunkcache = (0, '') |
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223 self.index = [] |
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224 self._pcache = {} |
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225 self._nodecache = {nullid: nullrev} |
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226 self._nodepos = None |
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227 |
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228 v = REVLOG_DEFAULT_VERSION |
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229 opts = getattr(opener, 'options', None) |
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230 if opts is not None: |
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231 if 'revlogv1' in opts: |
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232 if 'generaldelta' in opts: |
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233 v |= REVLOGGENERALDELTA |
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234 else: |
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235 v = 0 |
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236 |
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237 i = '' |
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238 self._initempty = True |
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239 try: |
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240 f = self.opener(self.indexfile) |
13253 | 241 i = f.read() |
13400
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242 f.close() |
4918
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243 if len(i) > 0: |
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244 v = struct.unpack(versionformat, i[:4])[0] |
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245 self._initempty = False |
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246 except IOError, inst: |
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247 if inst.errno != errno.ENOENT: |
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248 raise |
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249 |
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250 self.version = v |
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251 self._inline = v & REVLOGNGINLINEDATA |
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252 self._generaldelta = v & REVLOGGENERALDELTA |
2073 | 253 flags = v & ~0xFFFF |
254 fmt = v & 0xFFFF | |
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255 if fmt == REVLOGV0 and flags: |
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256 raise RevlogError(_("index %s unknown flags %#04x for format v0") |
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257 % (self.indexfile, flags >> 16)) |
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258 elif fmt == REVLOGNG and flags & ~REVLOGNG_FLAGS: |
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259 raise RevlogError(_("index %s unknown flags %#04x for revlogng") |
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260 % (self.indexfile, flags >> 16)) |
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261 elif fmt > REVLOGNG: |
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262 raise RevlogError(_("index %s unknown format %d") |
3680
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263 % (self.indexfile, fmt)) |
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264 |
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265 self._io = revlogio() |
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266 if self.version == REVLOGV0: |
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267 self._io = revlogoldio() |
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268 try: |
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269 d = self._io.parseindex(i, self._inline) |
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270 except (ValueError, IndexError): |
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271 raise RevlogError(_("index %s is corrupted") % (self.indexfile)) |
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272 self.index, nodemap, self._chunkcache = d |
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273 if nodemap is not None: |
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274 self.nodemap = self._nodecache = nodemap |
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275 if not self._chunkcache: |
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276 self._chunkclear() |
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277 |
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278 def tip(self): |
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279 return self.node(len(self.index) - 2) |
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280 def __len__(self): |
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281 return len(self.index) - 1 |
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282 def __iter__(self): |
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283 for i in xrange(len(self)): |
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284 yield i |
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285 |
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286 @util.propertycache |
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287 def nodemap(self): |
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288 self.rev(self.node(0)) |
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289 return self._nodecache |
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290 |
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291 def rev(self, node): |
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292 try: |
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293 return self._nodecache[node] |
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294 except KeyError: |
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295 n = self._nodecache |
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296 i = self.index |
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297 p = self._nodepos |
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298 if p is None: |
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299 p = len(i) - 2 |
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300 for r in xrange(p, -1, -1): |
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301 v = i[r][7] |
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302 n[v] = r |
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303 if v == node: |
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304 self._nodepos = r - 1 |
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305 return r |
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306 raise LookupError(node, self.indexfile, _('no node')) |
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307 |
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308 def node(self, rev): |
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309 return self.index[rev][7] |
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310 def linkrev(self, rev): |
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311 return self.index[rev][4] |
2 | 312 def parents(self, node): |
7363 | 313 i = self.index |
314 d = i[self.rev(node)] | |
315 return i[d[5]][7], i[d[6]][7] # map revisions to nodes inline | |
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316 def parentrevs(self, rev): |
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317 return self.index[rev][5:7] |
2072 | 318 def start(self, rev): |
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319 return int(self.index[rev][0] >> 16) |
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320 def end(self, rev): |
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321 return self.start(rev) + self.length(rev) |
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322 def length(self, rev): |
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323 return self.index[rev][1] |
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324 def chainbase(self, rev): |
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325 index = self.index |
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326 base = index[rev][3] |
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327 while base != rev: |
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328 rev = base |
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329 base = index[rev][3] |
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330 return base |
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331 def flags(self, rev): |
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332 return self.index[rev][0] & 0xFFFF |
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333 def rawsize(self, rev): |
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334 """return the length of the uncompressed text for a given revision""" |
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335 l = self.index[rev][2] |
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336 if l >= 0: |
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337 return l |
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338 |
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339 t = self.revision(self.node(rev)) |
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340 return len(t) |
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341 size = rawsize |
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342 |
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343 def reachable(self, node, stop=None): |
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344 """return the set of all nodes ancestral to a given node, including |
3683 | 345 the node itself, stopping when stop is matched""" |
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346 reachable = set((node,)) |
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347 visit = [node] |
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348 if stop: |
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349 stopn = self.rev(stop) |
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350 else: |
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351 stopn = 0 |
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352 while visit: |
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353 n = visit.pop(0) |
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354 if n == stop: |
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355 continue |
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356 if n == nullid: |
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357 continue |
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358 for p in self.parents(n): |
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359 if self.rev(p) < stopn: |
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360 continue |
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361 if p not in reachable: |
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362 reachable.add(p) |
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363 visit.append(p) |
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364 return reachable |
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365 |
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366 def ancestors(self, *revs): |
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367 """Generate the ancestors of 'revs' in reverse topological order. |
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368 |
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369 Yield a sequence of revision numbers starting with the parents |
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370 of each revision in revs, i.e., each revision is *not* considered |
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371 an ancestor of itself. Results are in breadth-first order: |
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372 parents of each rev in revs, then parents of those, etc. Result |
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373 does not include the null revision.""" |
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374 visit = list(revs) |
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375 seen = set([nullrev]) |
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376 while visit: |
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377 for parent in self.parentrevs(visit.pop(0)): |
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378 if parent not in seen: |
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379 visit.append(parent) |
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380 seen.add(parent) |
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381 yield parent |
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382 |
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383 def descendants(self, *revs): |
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384 """Generate the descendants of 'revs' in revision order. |
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385 |
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386 Yield a sequence of revision numbers starting with a child of |
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387 some rev in revs, i.e., each revision is *not* considered a |
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388 descendant of itself. Results are ordered by revision number (a |
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389 topological sort).""" |
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390 first = min(revs) |
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391 if first == nullrev: |
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392 for i in self: |
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393 yield i |
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394 return |
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395 |
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396 seen = set(revs) |
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397 for i in xrange(first + 1, len(self)): |
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398 for x in self.parentrevs(i): |
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399 if x != nullrev and x in seen: |
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400 seen.add(i) |
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401 yield i |
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402 break |
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403 |
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404 def findcommonmissing(self, common=None, heads=None): |
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405 """Return a tuple of the ancestors of common and the ancestors of heads |
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diff
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|
406 that are not ancestors of common. |
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|
407 |
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|
408 More specifically, the second element is a list of nodes N such that |
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|
409 every N satisfies the following constraints: |
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|
410 |
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411 1. N is an ancestor of some node in 'heads' |
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412 2. N is not an ancestor of any node in 'common' |
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|
413 |
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414 The list is sorted by revision number, meaning it is |
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|
415 topologically sorted. |
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416 |
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|
417 'heads' and 'common' are both lists of node IDs. If heads is |
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|
418 not supplied, uses all of the revlog's heads. If common is not |
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419 supplied, uses nullid.""" |
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420 if common is None: |
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421 common = [nullid] |
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422 if heads is None: |
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423 heads = self.heads() |
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424 |
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425 common = [self.rev(n) for n in common] |
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426 heads = [self.rev(n) for n in heads] |
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427 |
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428 # we want the ancestors, but inclusive |
8152
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parents:
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429 has = set(self.ancestors(*common)) |
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430 has.add(nullrev) |
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431 has.update(common) |
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432 |
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433 # take all ancestors from heads that aren't in has |
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434 missing = set() |
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435 visit = [r for r in heads if r not in has] |
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436 while visit: |
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437 r = visit.pop(0) |
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438 if r in missing: |
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439 continue |
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440 else: |
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441 missing.add(r) |
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442 for p in self.parentrevs(r): |
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443 if p not in has: |
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444 visit.append(p) |
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445 missing = list(missing) |
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446 missing.sort() |
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447 return has, [self.node(r) for r in missing] |
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448 |
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449 def findmissing(self, common=None, heads=None): |
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450 """Return the ancestors of heads that are not ancestors of common. |
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451 |
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452 More specifically, return a list of nodes N such that every N |
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453 satisfies the following constraints: |
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454 |
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455 1. N is an ancestor of some node in 'heads' |
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456 2. N is not an ancestor of any node in 'common' |
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457 |
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458 The list is sorted by revision number, meaning it is |
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459 topologically sorted. |
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460 |
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461 'heads' and 'common' are both lists of node IDs. If heads is |
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462 not supplied, uses all of the revlog's heads. If common is not |
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463 supplied, uses nullid.""" |
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464 _common, missing = self.findcommonmissing(common, heads) |
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465 return missing |
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466 |
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467 def nodesbetween(self, roots=None, heads=None): |
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468 """Return a topological path from 'roots' to 'heads'. |
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469 |
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470 Return a tuple (nodes, outroots, outheads) where 'nodes' is a |
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471 topologically sorted list of all nodes N that satisfy both of |
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472 these constraints: |
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473 |
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474 1. N is a descendant of some node in 'roots' |
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475 2. N is an ancestor of some node in 'heads' |
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476 |
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477 Every node is considered to be both a descendant and an ancestor |
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478 of itself, so every reachable node in 'roots' and 'heads' will be |
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479 included in 'nodes'. |
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480 |
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481 'outroots' is the list of reachable nodes in 'roots', i.e., the |
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482 subset of 'roots' that is returned in 'nodes'. Likewise, |
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483 'outheads' is the subset of 'heads' that is also in 'nodes'. |
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484 |
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485 'roots' and 'heads' are both lists of node IDs. If 'roots' is |
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486 unspecified, uses nullid as the only root. If 'heads' is |
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487 unspecified, uses list of all of the revlog's heads.""" |
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488 nonodes = ([], [], []) |
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489 if roots is not None: |
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490 roots = list(roots) |
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491 if not roots: |
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492 return nonodes |
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493 lowestrev = min([self.rev(n) for n in roots]) |
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494 else: |
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|
495 roots = [nullid] # Everybody's a descendant of nullid |
3578
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|
496 lowestrev = nullrev |
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|
497 if (lowestrev == nullrev) and (heads is None): |
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|
498 # We want _all_ the nodes! |
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|
499 return ([self.node(r) for r in self], [nullid], list(self.heads())) |
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500 if heads is None: |
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501 # All nodes are ancestors, so the latest ancestor is the last |
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|
502 # node. |
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|
503 highestrev = len(self) - 1 |
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504 # Set ancestors to None to signal that every node is an ancestor. |
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505 ancestors = None |
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|
506 # Set heads to an empty dictionary for later discovery of heads |
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This implements the nodesbetween method, and it removes the newer method
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|
507 heads = {} |
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|
508 else: |
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|
509 heads = list(heads) |
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|
510 if not heads: |
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changeset
|
511 return nonodes |
8464
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8453
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|
512 ancestors = set() |
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|
513 # Turn heads into a dictionary so we can remove 'fake' heads. |
518da3c3b6ce
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514 # 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
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515 # find from roots. |
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revlog: use real Booleans instead of 0/1 in nodesbetween
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14208
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516 heads = dict.fromkeys(heads, False) |
3360
ef8307585b41
nodesbetween: fix a bug with duplicate heads
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parents:
3335
diff
changeset
|
517 # 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
|
518 nodestotag = set(heads) |
1457
518da3c3b6ce
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|
519 # 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
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diff
changeset
|
520 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>
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diff
changeset
|
521 while nodestotag: |
518da3c3b6ce
This implements the nodesbetween method, and it removes the newer method
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|
522 # grab a node to tag |
518da3c3b6ce
This implements the nodesbetween method, and it removes the newer method
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|
523 n = nodestotag.pop() |
518da3c3b6ce
This implements the nodesbetween method, and it removes the newer method
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1351
diff
changeset
|
524 # Never tag nullid |
518da3c3b6ce
This implements the nodesbetween method, and it removes the newer method
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parents:
1351
diff
changeset
|
525 if n == nullid: |
518da3c3b6ce
This implements the nodesbetween method, and it removes the newer method
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parents:
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diff
changeset
|
526 continue |
518da3c3b6ce
This implements the nodesbetween method, and it removes the newer method
Eric Hopper <hopper@omnifarious.org>
parents:
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diff
changeset
|
527 # 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:
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diff
changeset
|
528 # topologically sorted list of nodes. |
518da3c3b6ce
This implements the nodesbetween method, and it removes the newer method
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diff
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|
529 r = self.rev(n) |
518da3c3b6ce
This implements the nodesbetween method, and it removes the newer method
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parents:
1351
diff
changeset
|
530 if r >= lowestrev: |
518da3c3b6ce
This implements the nodesbetween method, and it removes the newer method
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parents:
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diff
changeset
|
531 if n not in ancestors: |
14549
48ec0763afbb
check-code: catch misspellings of descendant
Matt Mackall <mpm@selenic.com>
parents:
14523
diff
changeset
|
532 # If we are possibly a descendant of one of the roots |
1457
518da3c3b6ce
This implements the nodesbetween method, and it removes the newer method
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533 # 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
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changeset
|
534 ancestors.add(n) # Mark as ancestor |
1457
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|
535 # 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
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changeset
|
536 nodestotag.update([p for p in self.parents(n) if |
1457
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This implements the nodesbetween method, and it removes the newer method
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parents:
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|
537 p != nullid]) |
518da3c3b6ce
This implements the nodesbetween method, and it removes the newer method
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538 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
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539 # So it is, real heads should not be the ancestors of |
518da3c3b6ce
This implements the nodesbetween method, and it removes the newer method
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540 # any other heads. |
518da3c3b6ce
This implements the nodesbetween method, and it removes the newer method
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|
541 heads.pop(n) |
1459
106fdec8e1fb
Fix small bug in nodesbetween if heads is [nullid].
Eric Hopper <hopper@omnifarious.org>
parents:
1458
diff
changeset
|
542 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
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changeset
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543 return nonodes |
1457
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This implements the nodesbetween method, and it removes the newer method
Eric Hopper <hopper@omnifarious.org>
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544 # 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
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diff
changeset
|
545 # roots that are not ancestors. |
518da3c3b6ce
This implements the nodesbetween method, and it removes the newer method
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changeset
|
546 |
518da3c3b6ce
This implements the nodesbetween method, and it removes the newer method
Eric Hopper <hopper@omnifarious.org>
parents:
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diff
changeset
|
547 # 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
|
548 if lowestrev > nullrev: |
1457
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This implements the nodesbetween method, and it removes the newer method
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549 # 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
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parents:
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diff
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|
550 # include roots that aren't ancestors. |
518da3c3b6ce
This implements the nodesbetween method, and it removes the newer method
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diff
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|
551 |
518da3c3b6ce
This implements the nodesbetween method, and it removes the newer method
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parents:
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diff
changeset
|
552 # Filter out roots that aren't ancestors of heads |
518da3c3b6ce
This implements the nodesbetween method, and it removes the newer method
Eric Hopper <hopper@omnifarious.org>
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changeset
|
553 roots = [n for n in roots if n in ancestors] |
518da3c3b6ce
This implements the nodesbetween method, and it removes the newer method
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diff
changeset
|
554 # Recompute the lowest revision |
518da3c3b6ce
This implements the nodesbetween method, and it removes the newer method
Eric Hopper <hopper@omnifarious.org>
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|
555 if roots: |
518da3c3b6ce
This implements the nodesbetween method, and it removes the newer method
Eric Hopper <hopper@omnifarious.org>
parents:
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diff
changeset
|
556 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>
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diff
changeset
|
557 else: |
518da3c3b6ce
This implements the nodesbetween method, and it removes the newer method
Eric Hopper <hopper@omnifarious.org>
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|
558 # 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
|
559 return nonodes |
1457
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This implements the nodesbetween method, and it removes the newer method
Eric Hopper <hopper@omnifarious.org>
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diff
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|
560 else: |
518da3c3b6ce
This implements the nodesbetween method, and it removes the newer method
Eric Hopper <hopper@omnifarious.org>
parents:
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diff
changeset
|
561 # 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:
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diff
changeset
|
562 # 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
|
563 lowestrev = nullrev |
1457
518da3c3b6ce
This implements the nodesbetween method, and it removes the newer method
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diff
changeset
|
564 roots = [nullid] |
8152
08e1baf924ca
replace set-like dictionaries with real sets
Martin Geisler <mg@lazybytes.net>
parents:
8150
diff
changeset
|
565 # Transform our roots list into a set. |
14549
48ec0763afbb
check-code: catch misspellings of descendant
Matt Mackall <mpm@selenic.com>
parents:
14523
diff
changeset
|
566 descendants = set(roots) |
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
|
567 # 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
|
568 # '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
|
569 roots = descendants.copy() |
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
|
570 # 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:
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diff
changeset
|
571 orderedout = [] |
518da3c3b6ce
This implements the nodesbetween method, and it removes the newer method
Eric Hopper <hopper@omnifarious.org>
parents:
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diff
changeset
|
572 # Don't start at nullid since we don't want nullid in our output list, |
518da3c3b6ce
This implements the nodesbetween method, and it removes the newer method
Eric Hopper <hopper@omnifarious.org>
parents:
1351
diff
changeset
|
573 # and if nullid shows up in descedents, empty parents will look like |
14549
48ec0763afbb
check-code: catch misspellings of descendant
Matt Mackall <mpm@selenic.com>
parents:
14523
diff
changeset
|
574 # they're descendants. |
1457
518da3c3b6ce
This implements the nodesbetween method, and it removes the newer method
Eric Hopper <hopper@omnifarious.org>
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changeset
|
575 for r in xrange(max(lowestrev, 0), highestrev + 1): |
518da3c3b6ce
This implements the nodesbetween method, and it removes the newer method
Eric Hopper <hopper@omnifarious.org>
parents:
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diff
changeset
|
576 n = self.node(r) |
14549
48ec0763afbb
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parents:
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diff
changeset
|
577 isdescendant = False |
48ec0763afbb
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Matt Mackall <mpm@selenic.com>
parents:
14523
diff
changeset
|
578 if lowestrev == nullrev: # Everybody is a descendant of nullid |
48ec0763afbb
check-code: catch misspellings of descendant
Matt Mackall <mpm@selenic.com>
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diff
changeset
|
579 isdescendant = True |
48ec0763afbb
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Matt Mackall <mpm@selenic.com>
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diff
changeset
|
580 elif n in descendants: |
48ec0763afbb
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Matt Mackall <mpm@selenic.com>
parents:
14523
diff
changeset
|
581 # n is already a descendant |
48ec0763afbb
check-code: catch misspellings of descendant
Matt Mackall <mpm@selenic.com>
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diff
changeset
|
582 isdescendant = True |
1457
518da3c3b6ce
This implements the nodesbetween method, and it removes the newer method
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1351
diff
changeset
|
583 # This check only needs to be done here because all the roots |
14549
48ec0763afbb
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Matt Mackall <mpm@selenic.com>
parents:
14523
diff
changeset
|
584 # 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>
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diff
changeset
|
585 if n in roots: |
518da3c3b6ce
This implements the nodesbetween method, and it removes the newer method
Eric Hopper <hopper@omnifarious.org>
parents:
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diff
changeset
|
586 # If n was a root, check if it's a 'real' root. |
518da3c3b6ce
This implements the nodesbetween method, and it removes the newer method
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parents:
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diff
changeset
|
587 p = tuple(self.parents(n)) |
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parents:
14523
diff
changeset
|
588 # If any of its parents are descendants, it's not a root. |
48ec0763afbb
check-code: catch misspellings of descendant
Matt Mackall <mpm@selenic.com>
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14523
diff
changeset
|
589 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
|
590 roots.remove(n) |
1457
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This implements the nodesbetween method, and it removes the newer method
Eric Hopper <hopper@omnifarious.org>
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1351
diff
changeset
|
591 else: |
518da3c3b6ce
This implements the nodesbetween method, and it removes the newer method
Eric Hopper <hopper@omnifarious.org>
parents:
1351
diff
changeset
|
592 p = tuple(self.parents(n)) |
14549
48ec0763afbb
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Matt Mackall <mpm@selenic.com>
parents:
14523
diff
changeset
|
593 # 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
|
594 # descendants. (We seeded the dependents list with the roots |
1457
518da3c3b6ce
This implements the nodesbetween method, and it removes the newer method
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diff
changeset
|
595 # up there, remember?) |
14549
48ec0763afbb
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diff
changeset
|
596 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
|
597 descendants.add(n) |
48ec0763afbb
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Matt Mackall <mpm@selenic.com>
parents:
14523
diff
changeset
|
598 isdescendant = True |
48ec0763afbb
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Matt Mackall <mpm@selenic.com>
parents:
14523
diff
changeset
|
599 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
|
600 # Only include nodes that are both descendants and ancestors. |
1457
518da3c3b6ce
This implements the nodesbetween method, and it removes the newer method
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parents:
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diff
changeset
|
601 orderedout.append(n) |
518da3c3b6ce
This implements the nodesbetween method, and it removes the newer method
Eric Hopper <hopper@omnifarious.org>
parents:
1351
diff
changeset
|
602 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>
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diff
changeset
|
603 # 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:
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diff
changeset
|
604 # from roots. |
518da3c3b6ce
This implements the nodesbetween method, and it removes the newer method
Eric Hopper <hopper@omnifarious.org>
parents:
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diff
changeset
|
605 # 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
|
606 heads[n] = True |
1457
518da3c3b6ce
This implements the nodesbetween method, and it removes the newer method
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parents:
1351
diff
changeset
|
607 elif ancestors is None: |
518da3c3b6ce
This implements the nodesbetween method, and it removes the newer method
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|
608 # Otherwise, we're trying to discover the heads. |
518da3c3b6ce
This implements the nodesbetween method, and it removes the newer method
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changeset
|
609 # 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
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changeset
|
610 # will eventually remove it. |
14219
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Martin Geisler <mg@aragost.com>
parents:
14208
diff
changeset
|
611 heads[n] = True |
1457
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|
612 # But, obviously its parents aren't. |
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This implements the nodesbetween method, and it removes the newer method
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changeset
|
613 for p in self.parents(n): |
518da3c3b6ce
This implements the nodesbetween method, and it removes the newer method
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changeset
|
614 heads.pop(p, None) |
14219
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parents:
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diff
changeset
|
615 heads = [n for n, flag in heads.iteritems() if flag] |
8152
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replace set-like dictionaries with real sets
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changeset
|
616 roots = list(roots) |
1457
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|
617 assert orderedout |
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|
618 assert roots |
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diff
changeset
|
619 assert heads |
518da3c3b6ce
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changeset
|
620 return (orderedout, roots, heads) |
518da3c3b6ce
This implements the nodesbetween method, and it removes the newer method
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diff
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|
621 |
14164
cb98fed52495
discovery: add new set-based discovery
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14144
diff
changeset
|
622 def headrevs(self): |
cb98fed52495
discovery: add new set-based discovery
Peter Arrenbrecht <peter.arrenbrecht@gmail.com>
parents:
14144
diff
changeset
|
623 count = len(self) |
cb98fed52495
discovery: add new set-based discovery
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14144
diff
changeset
|
624 if not count: |
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discovery: add new set-based discovery
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14144
diff
changeset
|
625 return [nullrev] |
cb98fed52495
discovery: add new set-based discovery
Peter Arrenbrecht <peter.arrenbrecht@gmail.com>
parents:
14144
diff
changeset
|
626 ishead = [1] * (count + 1) |
cb98fed52495
discovery: add new set-based discovery
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parents:
14144
diff
changeset
|
627 index = self.index |
cb98fed52495
discovery: add new set-based discovery
Peter Arrenbrecht <peter.arrenbrecht@gmail.com>
parents:
14144
diff
changeset
|
628 for r in xrange(count): |
cb98fed52495
discovery: add new set-based discovery
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parents:
14144
diff
changeset
|
629 e = index[r] |
cb98fed52495
discovery: add new set-based discovery
Peter Arrenbrecht <peter.arrenbrecht@gmail.com>
parents:
14144
diff
changeset
|
630 ishead[e[5]] = ishead[e[6]] = 0 |
cb98fed52495
discovery: add new set-based discovery
Peter Arrenbrecht <peter.arrenbrecht@gmail.com>
parents:
14144
diff
changeset
|
631 return [r for r in xrange(count) if ishead[r]] |
cb98fed52495
discovery: add new set-based discovery
Peter Arrenbrecht <peter.arrenbrecht@gmail.com>
parents:
14144
diff
changeset
|
632 |
3923
27230c29bfec
fix calculation of new heads added during push with -r
Benoit Boissinot <benoit.boissinot@ens-lyon.org>
parents:
3755
diff
changeset
|
633 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
|
634 """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:
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diff
changeset
|
635 |
e793cbc8be00
Fixes to "hg heads -r FOO":
Thomas Arendsen Hein <thomas@intevation.de>
parents:
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diff
changeset
|
636 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
|
637 start will be returned |
3923
27230c29bfec
fix calculation of new heads added during push with -r
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parents:
3755
diff
changeset
|
638 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
|
639 as if they had no children |
1551
e793cbc8be00
Fixes to "hg heads -r FOO":
Thomas Arendsen Hein <thomas@intevation.de>
parents:
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diff
changeset
|
640 """ |
4991
9c8c42bcf17a
revlog: implement a fast path for heads
Matt Mackall <mpm@selenic.com>
parents:
4990
diff
changeset
|
641 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
|
642 if not len(self): |
4991
9c8c42bcf17a
revlog: implement a fast path for heads
Matt Mackall <mpm@selenic.com>
parents:
4990
diff
changeset
|
643 return [nullid] |
14164
cb98fed52495
discovery: add new set-based discovery
Peter Arrenbrecht <peter.arrenbrecht@gmail.com>
parents:
14144
diff
changeset
|
644 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
|
645 |
1551
e793cbc8be00
Fixes to "hg heads -r FOO":
Thomas Arendsen Hein <thomas@intevation.de>
parents:
1550
diff
changeset
|
646 if start is None: |
e793cbc8be00
Fixes to "hg heads -r FOO":
Thomas Arendsen Hein <thomas@intevation.de>
parents:
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diff
changeset
|
647 start = nullid |
3923
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fix calculation of new heads added during push with -r
Benoit Boissinot <benoit.boissinot@ens-lyon.org>
parents:
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diff
changeset
|
648 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
|
649 stop = [] |
8152
08e1baf924ca
replace set-like dictionaries with real sets
Martin Geisler <mg@lazybytes.net>
parents:
8150
diff
changeset
|
650 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
|
651 startrev = self.rev(start) |
8464
7af92e70bb25
revlog: use set instead of dict
Benoit Boissinot <benoit.boissinot@ens-lyon.org>
parents:
8453
diff
changeset
|
652 reachable = set((startrev,)) |
7af92e70bb25
revlog: use set instead of dict
Benoit Boissinot <benoit.boissinot@ens-lyon.org>
parents:
8453
diff
changeset
|
653 heads = set((startrev,)) |
1083 | 654 |
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
|
655 parentrevs = self.parentrevs |
6750
fb42030d79d6
add __len__ and __iter__ methods to repo and revlog
Matt Mackall <mpm@selenic.com>
parents:
6703
diff
changeset
|
656 for r in xrange(startrev + 1, len(self)): |
2490
6ff82ec1f4b8
Change revlog.heads to walk the revision graph using revision numbers
Alexis S. L. Carvalho <alexis@cecm.usp.br>
parents:
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diff
changeset
|
657 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
|
658 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
|
659 if r not in stoprevs: |
8464
7af92e70bb25
revlog: use set instead of dict
Benoit Boissinot <benoit.boissinot@ens-lyon.org>
parents:
8453
diff
changeset
|
660 reachable.add(r) |
7af92e70bb25
revlog: use set instead of dict
Benoit Boissinot <benoit.boissinot@ens-lyon.org>
parents:
8453
diff
changeset
|
661 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
|
662 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
|
663 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
|
664 |
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
|
665 return [self.node(r) for r in heads] |
370 | 666 |
667 def children(self, node): | |
1083 | 668 """find the children of a given node""" |
370 | 669 c = [] |
670 p = self.rev(node) | |
6750
fb42030d79d6
add __len__ and __iter__ methods to repo and revlog
Matt Mackall <mpm@selenic.com>
parents:
6703
diff
changeset
|
671 for r in range(p + 1, len(self)): |
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
|
672 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
|
673 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
|
674 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
|
675 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
|
676 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
|
677 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
|
678 c.append(self.node(r)) |
370 | 679 return c |
515 | 680 |
10897
adb6a291bbdb
revlog: put graph related functions together
Benoit Boissinot <benoit.boissinot@ens-lyon.org>
parents:
10404
diff
changeset
|
681 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
|
682 if start == nullrev: |
6878eaa5a40d
revlog: if start is nullrev, end is always a descendant
Nicolas Dumazet <nicdumz.commits@gmail.com>
parents:
12890
diff
changeset
|
683 return True |
10897
adb6a291bbdb
revlog: put graph related functions together
Benoit Boissinot <benoit.boissinot@ens-lyon.org>
parents:
10404
diff
changeset
|
684 for i in self.descendants(start): |
adb6a291bbdb
revlog: put graph related functions together
Benoit Boissinot <benoit.boissinot@ens-lyon.org>
parents:
10404
diff
changeset
|
685 if i == end: |
adb6a291bbdb
revlog: put graph related functions together
Benoit Boissinot <benoit.boissinot@ens-lyon.org>
parents:
10404
diff
changeset
|
686 return True |
adb6a291bbdb
revlog: put graph related functions together
Benoit Boissinot <benoit.boissinot@ens-lyon.org>
parents:
10404
diff
changeset
|
687 elif i > end: |
adb6a291bbdb
revlog: put graph related functions together
Benoit Boissinot <benoit.boissinot@ens-lyon.org>
parents:
10404
diff
changeset
|
688 break |
adb6a291bbdb
revlog: put graph related functions together
Benoit Boissinot <benoit.boissinot@ens-lyon.org>
parents:
10404
diff
changeset
|
689 return False |
adb6a291bbdb
revlog: put graph related functions together
Benoit Boissinot <benoit.boissinot@ens-lyon.org>
parents:
10404
diff
changeset
|
690 |
adb6a291bbdb
revlog: put graph related functions together
Benoit Boissinot <benoit.boissinot@ens-lyon.org>
parents:
10404
diff
changeset
|
691 def ancestor(self, a, b): |
adb6a291bbdb
revlog: put graph related functions together
Benoit Boissinot <benoit.boissinot@ens-lyon.org>
parents:
10404
diff
changeset
|
692 """calculate the least common ancestor of nodes a and b""" |
adb6a291bbdb
revlog: put graph related functions together
Benoit Boissinot <benoit.boissinot@ens-lyon.org>
parents:
10404
diff
changeset
|
693 |
adb6a291bbdb
revlog: put graph related functions together
Benoit Boissinot <benoit.boissinot@ens-lyon.org>
parents:
10404
diff
changeset
|
694 # fast path, check if it is a descendant |
adb6a291bbdb
revlog: put graph related functions together
Benoit Boissinot <benoit.boissinot@ens-lyon.org>
parents:
10404
diff
changeset
|
695 a, b = self.rev(a), self.rev(b) |
adb6a291bbdb
revlog: put graph related functions together
Benoit Boissinot <benoit.boissinot@ens-lyon.org>
parents:
10404
diff
changeset
|
696 start, end = sorted((a, b)) |
adb6a291bbdb
revlog: put graph related functions together
Benoit Boissinot <benoit.boissinot@ens-lyon.org>
parents:
10404
diff
changeset
|
697 if self.descendant(start, end): |
adb6a291bbdb
revlog: put graph related functions together
Benoit Boissinot <benoit.boissinot@ens-lyon.org>
parents:
10404
diff
changeset
|
698 return self.node(start) |
adb6a291bbdb
revlog: put graph related functions together
Benoit Boissinot <benoit.boissinot@ens-lyon.org>
parents:
10404
diff
changeset
|
699 |
adb6a291bbdb
revlog: put graph related functions together
Benoit Boissinot <benoit.boissinot@ens-lyon.org>
parents:
10404
diff
changeset
|
700 def parents(rev): |
adb6a291bbdb
revlog: put graph related functions together
Benoit Boissinot <benoit.boissinot@ens-lyon.org>
parents:
10404
diff
changeset
|
701 return [p for p in self.parentrevs(rev) if p != nullrev] |
adb6a291bbdb
revlog: put graph related functions together
Benoit Boissinot <benoit.boissinot@ens-lyon.org>
parents:
10404
diff
changeset
|
702 |
adb6a291bbdb
revlog: put graph related functions together
Benoit Boissinot <benoit.boissinot@ens-lyon.org>
parents:
10404
diff
changeset
|
703 c = ancestor.ancestor(a, b, parents) |
adb6a291bbdb
revlog: put graph related functions together
Benoit Boissinot <benoit.boissinot@ens-lyon.org>
parents:
10404
diff
changeset
|
704 if c is None: |
adb6a291bbdb
revlog: put graph related functions together
Benoit Boissinot <benoit.boissinot@ens-lyon.org>
parents:
10404
diff
changeset
|
705 return nullid |
adb6a291bbdb
revlog: put graph related functions together
Benoit Boissinot <benoit.boissinot@ens-lyon.org>
parents:
10404
diff
changeset
|
706 |
adb6a291bbdb
revlog: put graph related functions together
Benoit Boissinot <benoit.boissinot@ens-lyon.org>
parents:
10404
diff
changeset
|
707 return self.node(c) |
adb6a291bbdb
revlog: put graph related functions together
Benoit Boissinot <benoit.boissinot@ens-lyon.org>
parents:
10404
diff
changeset
|
708 |
3453
dba3cadef789
Only look up tags and branches as a last resort
Matt Mackall <mpm@selenic.com>
parents:
3438
diff
changeset
|
709 def _match(self, id): |
3210
7240f9e47144
correctly find the type of 'id' in revlog.lookup
Benoit Boissinot <benoit.boissinot@ens-lyon.org>
parents:
3157
diff
changeset
|
710 if isinstance(id, (long, int)): |
3156
d01e4cb2f5f2
cleanups in revlog.lookup
Benoit Boissinot <benoit.boissinot@ens-lyon.org>
parents:
3139
diff
changeset
|
711 # 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
|
712 return self.node(id) |
3438 | 713 if len(id) == 20: |
714 # possibly a binary node | |
715 # odds of a binary node being all hex in ASCII are 1 in 10**25 | |
716 try: | |
717 node = id | |
7874
d812029cda85
cleanup: drop variables for unused return values
Peter Arrenbrecht <peter.arrenbrecht@gmail.com>
parents:
7873
diff
changeset
|
718 self.rev(node) # quick search the index |
3438 | 719 return node |
3930
01d98d68d697
Add revlog.LookupError exception, and use it instead of RevlogError.
Brendan Cully <brendan@kublai.com>
parents:
3928
diff
changeset
|
720 except LookupError: |
3438 | 721 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
|
722 try: |
3156
d01e4cb2f5f2
cleanups in revlog.lookup
Benoit Boissinot <benoit.boissinot@ens-lyon.org>
parents:
3139
diff
changeset
|
723 # str(rev) |
36
da28286bf6b7
Add smart node lookup by substring or by rev number
mpm@selenic.com
parents:
26
diff
changeset
|
724 rev = int(id) |
4980
fc44c8df9d99
revlog: some codingstyle cleanups
Matt Mackall <mpm@selenic.com>
parents:
4979
diff
changeset
|
725 if str(rev) != id: |
fc44c8df9d99
revlog: some codingstyle cleanups
Matt Mackall <mpm@selenic.com>
parents:
4979
diff
changeset
|
726 raise ValueError |
fc44c8df9d99
revlog: some codingstyle cleanups
Matt Mackall <mpm@selenic.com>
parents:
4979
diff
changeset
|
727 if rev < 0: |
6750
fb42030d79d6
add __len__ and __iter__ methods to repo and revlog
Matt Mackall <mpm@selenic.com>
parents:
6703
diff
changeset
|
728 rev = len(self) + rev |
fb42030d79d6
add __len__ and __iter__ methods to repo and revlog
Matt Mackall <mpm@selenic.com>
parents:
6703
diff
changeset
|
729 if rev < 0 or rev >= len(self): |
4980
fc44c8df9d99
revlog: some codingstyle cleanups
Matt Mackall <mpm@selenic.com>
parents:
4979
diff
changeset
|
730 raise ValueError |
36
da28286bf6b7
Add smart node lookup by substring or by rev number
mpm@selenic.com
parents:
26
diff
changeset
|
731 return self.node(rev) |
469 | 732 except (ValueError, OverflowError): |
3156
d01e4cb2f5f2
cleanups in revlog.lookup
Benoit Boissinot <benoit.boissinot@ens-lyon.org>
parents:
3139
diff
changeset
|
733 pass |
3453
dba3cadef789
Only look up tags and branches as a last resort
Matt Mackall <mpm@selenic.com>
parents:
3438
diff
changeset
|
734 if len(id) == 40: |
dba3cadef789
Only look up tags and branches as a last resort
Matt Mackall <mpm@selenic.com>
parents:
3438
diff
changeset
|
735 try: |
3438 | 736 # a full hex nodeid? |
737 node = bin(id) | |
7874
d812029cda85
cleanup: drop variables for unused return values
Peter Arrenbrecht <peter.arrenbrecht@gmail.com>
parents:
7873
diff
changeset
|
738 self.rev(node) |
3157
4fe41a9e4591
optimize revlog.lookup when passed hex(node)[:...]
Benoit Boissinot <benoit.boissinot@ens-lyon.org>
parents:
3156
diff
changeset
|
739 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
|
740 except (TypeError, LookupError): |
3453
dba3cadef789
Only look up tags and branches as a last resort
Matt Mackall <mpm@selenic.com>
parents:
3438
diff
changeset
|
741 pass |
dba3cadef789
Only look up tags and branches as a last resort
Matt Mackall <mpm@selenic.com>
parents:
3438
diff
changeset
|
742 |
dba3cadef789
Only look up tags and branches as a last resort
Matt Mackall <mpm@selenic.com>
parents:
3438
diff
changeset
|
743 def _partialmatch(self, id): |
13258
c2661863f16f
revlog: introduce a cache for partial lookups
Matt Mackall <mpm@selenic.com>
parents:
13254
diff
changeset
|
744 if id in self._pcache: |
c2661863f16f
revlog: introduce a cache for partial lookups
Matt Mackall <mpm@selenic.com>
parents:
13254
diff
changeset
|
745 return self._pcache[id] |
c2661863f16f
revlog: introduce a cache for partial lookups
Matt Mackall <mpm@selenic.com>
parents:
13254
diff
changeset
|
746 |
3453
dba3cadef789
Only look up tags and branches as a last resort
Matt Mackall <mpm@selenic.com>
parents:
3438
diff
changeset
|
747 if len(id) < 40: |
dba3cadef789
Only look up tags and branches as a last resort
Matt Mackall <mpm@selenic.com>
parents:
3438
diff
changeset
|
748 try: |
3438 | 749 # hex(node)[:...] |
9029
0001e49f1c11
compat: use // for integer division
Alejandro Santos <alejolp@alejolp.com>
parents:
8658
diff
changeset
|
750 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
|
751 prefix = bin(id[:l * 2]) |
3b616dfa4b17
revlog: do revlog node->rev mapping by scanning
Matt Mackall <mpm@selenic.com>
parents:
13258
diff
changeset
|
752 nl = [e[7] for e in self.index if e[7].startswith(prefix)] |
7365
ec3aafa84d44
lookup: speed up partial lookup
Matt Mackall <mpm@selenic.com>
parents:
7363
diff
changeset
|
753 nl = [n for n in nl if hex(n).startswith(id)] |
ec3aafa84d44
lookup: speed up partial lookup
Matt Mackall <mpm@selenic.com>
parents:
7363
diff
changeset
|
754 if len(nl) > 0: |
ec3aafa84d44
lookup: speed up partial lookup
Matt Mackall <mpm@selenic.com>
parents:
7363
diff
changeset
|
755 if len(nl) == 1: |
13258
c2661863f16f
revlog: introduce a cache for partial lookups
Matt Mackall <mpm@selenic.com>
parents:
13254
diff
changeset
|
756 self._pcache[id] = nl[0] |
7365
ec3aafa84d44
lookup: speed up partial lookup
Matt Mackall <mpm@selenic.com>
parents:
7363
diff
changeset
|
757 return nl[0] |
ec3aafa84d44
lookup: speed up partial lookup
Matt Mackall <mpm@selenic.com>
parents:
7363
diff
changeset
|
758 raise LookupError(id, self.indexfile, |
ec3aafa84d44
lookup: speed up partial lookup
Matt Mackall <mpm@selenic.com>
parents:
7363
diff
changeset
|
759 _('ambiguous identifier')) |
ec3aafa84d44
lookup: speed up partial lookup
Matt Mackall <mpm@selenic.com>
parents:
7363
diff
changeset
|
760 return None |
3453
dba3cadef789
Only look up tags and branches as a last resort
Matt Mackall <mpm@selenic.com>
parents:
3438
diff
changeset
|
761 except TypeError: |
dba3cadef789
Only look up tags and branches as a last resort
Matt Mackall <mpm@selenic.com>
parents:
3438
diff
changeset
|
762 pass |
dba3cadef789
Only look up tags and branches as a last resort
Matt Mackall <mpm@selenic.com>
parents:
3438
diff
changeset
|
763 |
dba3cadef789
Only look up tags and branches as a last resort
Matt Mackall <mpm@selenic.com>
parents:
3438
diff
changeset
|
764 def lookup(self, id): |
dba3cadef789
Only look up tags and branches as a last resort
Matt Mackall <mpm@selenic.com>
parents:
3438
diff
changeset
|
765 """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
|
766 - 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
|
767 - 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
|
768 """ |
dba3cadef789
Only look up tags and branches as a last resort
Matt Mackall <mpm@selenic.com>
parents:
3438
diff
changeset
|
769 n = self._match(id) |
dba3cadef789
Only look up tags and branches as a last resort
Matt Mackall <mpm@selenic.com>
parents:
3438
diff
changeset
|
770 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
|
771 return n |
dba3cadef789
Only look up tags and branches as a last resort
Matt Mackall <mpm@selenic.com>
parents:
3438
diff
changeset
|
772 n = self._partialmatch(id) |
dba3cadef789
Only look up tags and branches as a last resort
Matt Mackall <mpm@selenic.com>
parents:
3438
diff
changeset
|
773 if n: |
dba3cadef789
Only look up tags and branches as a last resort
Matt Mackall <mpm@selenic.com>
parents:
3438
diff
changeset
|
774 return n |
515 | 775 |
6228
c0c4c7b1e8d3
revlog: report node and file when lookup fails
Matt Mackall <mpm@selenic.com>
parents:
6212
diff
changeset
|
776 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
|
777 |
2890
5df3e5cf16bc
Move cmp bits from filelog to revlog
Matt Mackall <mpm@selenic.com>
parents:
2859
diff
changeset
|
778 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
|
779 """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
|
780 |
a463e3c50212
cmp: document the fact that we return True if content is different
Nicolas Dumazet <nicdumz.commits@gmail.com>
parents:
11323
diff
changeset
|
781 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
|
782 """ |
2890
5df3e5cf16bc
Move cmp bits from filelog to revlog
Matt Mackall <mpm@selenic.com>
parents:
2859
diff
changeset
|
783 p1, p2 = self.parents(node) |
5df3e5cf16bc
Move cmp bits from filelog to revlog
Matt Mackall <mpm@selenic.com>
parents:
2859
diff
changeset
|
784 return hash(text, p1, p2) != node |
5df3e5cf16bc
Move cmp bits from filelog to revlog
Matt Mackall <mpm@selenic.com>
parents:
2859
diff
changeset
|
785 |
8316
d593922cf480
revlog: clean up the chunk caching code
Matt Mackall <mpm@selenic.com>
parents:
8315
diff
changeset
|
786 def _addchunk(self, offset, data): |
d593922cf480
revlog: clean up the chunk caching code
Matt Mackall <mpm@selenic.com>
parents:
8315
diff
changeset
|
787 o, d = self._chunkcache |
d593922cf480
revlog: clean up the chunk caching code
Matt Mackall <mpm@selenic.com>
parents:
8315
diff
changeset
|
788 # try to add to existing cache |
13253 | 789 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
|
790 self._chunkcache = o, d + data |
d593922cf480
revlog: clean up the chunk caching code
Matt Mackall <mpm@selenic.com>
parents:
8315
diff
changeset
|
791 else: |
d593922cf480
revlog: clean up the chunk caching code
Matt Mackall <mpm@selenic.com>
parents:
8315
diff
changeset
|
792 self._chunkcache = offset, data |
d593922cf480
revlog: clean up the chunk caching code
Matt Mackall <mpm@selenic.com>
parents:
8315
diff
changeset
|
793 |
8650
ef393d6ec030
revlog: refactor chunk cache interface again
Matt Mackall <mpm@selenic.com>
parents:
8643
diff
changeset
|
794 def _loadchunk(self, offset, length): |
ef393d6ec030
revlog: refactor chunk cache interface again
Matt Mackall <mpm@selenic.com>
parents:
8643
diff
changeset
|
795 if self._inline: |
ef393d6ec030
revlog: refactor chunk cache interface again
Matt Mackall <mpm@selenic.com>
parents:
8643
diff
changeset
|
796 df = self.opener(self.indexfile) |
ef393d6ec030
revlog: refactor chunk cache interface again
Matt Mackall <mpm@selenic.com>
parents:
8643
diff
changeset
|
797 else: |
ef393d6ec030
revlog: refactor chunk cache interface again
Matt Mackall <mpm@selenic.com>
parents:
8643
diff
changeset
|
798 df = self.opener(self.datafile) |
8316
d593922cf480
revlog: clean up the chunk caching code
Matt Mackall <mpm@selenic.com>
parents:
8315
diff
changeset
|
799 |
d593922cf480
revlog: clean up the chunk caching code
Matt Mackall <mpm@selenic.com>
parents:
8315
diff
changeset
|
800 readahead = max(65536, length) |
d593922cf480
revlog: clean up the chunk caching code
Matt Mackall <mpm@selenic.com>
parents:
8315
diff
changeset
|
801 df.seek(offset) |
d593922cf480
revlog: clean up the chunk caching code
Matt Mackall <mpm@selenic.com>
parents:
8315
diff
changeset
|
802 d = df.read(readahead) |
d593922cf480
revlog: clean up the chunk caching code
Matt Mackall <mpm@selenic.com>
parents:
8315
diff
changeset
|
803 self._addchunk(offset, d) |
d593922cf480
revlog: clean up the chunk caching code
Matt Mackall <mpm@selenic.com>
parents:
8315
diff
changeset
|
804 if readahead > length: |
d593922cf480
revlog: clean up the chunk caching code
Matt Mackall <mpm@selenic.com>
parents:
8315
diff
changeset
|
805 return d[:length] |
d593922cf480
revlog: clean up the chunk caching code
Matt Mackall <mpm@selenic.com>
parents:
8315
diff
changeset
|
806 return d |
d593922cf480
revlog: clean up the chunk caching code
Matt Mackall <mpm@selenic.com>
parents:
8315
diff
changeset
|
807 |
8650
ef393d6ec030
revlog: refactor chunk cache interface again
Matt Mackall <mpm@selenic.com>
parents:
8643
diff
changeset
|
808 def _getchunk(self, offset, length): |
8316
d593922cf480
revlog: clean up the chunk caching code
Matt Mackall <mpm@selenic.com>
parents:
8315
diff
changeset
|
809 o, d = self._chunkcache |
d593922cf480
revlog: clean up the chunk caching code
Matt Mackall <mpm@selenic.com>
parents:
8315
diff
changeset
|
810 l = len(d) |
d593922cf480
revlog: clean up the chunk caching code
Matt Mackall <mpm@selenic.com>
parents:
8315
diff
changeset
|
811 |
d593922cf480
revlog: clean up the chunk caching code
Matt Mackall <mpm@selenic.com>
parents:
8315
diff
changeset
|
812 # is it in the cache? |
d593922cf480
revlog: clean up the chunk caching code
Matt Mackall <mpm@selenic.com>
parents:
8315
diff
changeset
|
813 cachestart = offset - o |
d593922cf480
revlog: clean up the chunk caching code
Matt Mackall <mpm@selenic.com>
parents:
8315
diff
changeset
|
814 cacheend = cachestart + length |
d593922cf480
revlog: clean up the chunk caching code
Matt Mackall <mpm@selenic.com>
parents:
8315
diff
changeset
|
815 if cachestart >= 0 and cacheend <= l: |
d593922cf480
revlog: clean up the chunk caching code
Matt Mackall <mpm@selenic.com>
parents:
8315
diff
changeset
|
816 if cachestart == 0 and cacheend == l: |
d593922cf480
revlog: clean up the chunk caching code
Matt Mackall <mpm@selenic.com>
parents:
8315
diff
changeset
|
817 return d # avoid a copy |
d593922cf480
revlog: clean up the chunk caching code
Matt Mackall <mpm@selenic.com>
parents:
8315
diff
changeset
|
818 return d[cachestart:cacheend] |
d593922cf480
revlog: clean up the chunk caching code
Matt Mackall <mpm@selenic.com>
parents:
8315
diff
changeset
|
819 |
8650
ef393d6ec030
revlog: refactor chunk cache interface again
Matt Mackall <mpm@selenic.com>
parents:
8643
diff
changeset
|
820 return self._loadchunk(offset, length) |
8316
d593922cf480
revlog: clean up the chunk caching code
Matt Mackall <mpm@selenic.com>
parents:
8315
diff
changeset
|
821 |
8650
ef393d6ec030
revlog: refactor chunk cache interface again
Matt Mackall <mpm@selenic.com>
parents:
8643
diff
changeset
|
822 def _chunkraw(self, startrev, endrev): |
8318
6b8513f8274a
revlog: add cache priming for reconstructing delta chains
Matt Mackall <mpm@selenic.com>
parents:
8317
diff
changeset
|
823 start = self.start(startrev) |
8650
ef393d6ec030
revlog: refactor chunk cache interface again
Matt Mackall <mpm@selenic.com>
parents:
8643
diff
changeset
|
824 length = self.end(endrev) - start |
8318
6b8513f8274a
revlog: add cache priming for reconstructing delta chains
Matt Mackall <mpm@selenic.com>
parents:
8317
diff
changeset
|
825 if self._inline: |
6b8513f8274a
revlog: add cache priming for reconstructing delta chains
Matt Mackall <mpm@selenic.com>
parents:
8317
diff
changeset
|
826 start += (startrev + 1) * self._io.size |
8650
ef393d6ec030
revlog: refactor chunk cache interface again
Matt Mackall <mpm@selenic.com>
parents:
8643
diff
changeset
|
827 return self._getchunk(start, length) |
8318
6b8513f8274a
revlog: add cache priming for reconstructing delta chains
Matt Mackall <mpm@selenic.com>
parents:
8317
diff
changeset
|
828 |
8650
ef393d6ec030
revlog: refactor chunk cache interface again
Matt Mackall <mpm@selenic.com>
parents:
8643
diff
changeset
|
829 def _chunk(self, rev): |
ef393d6ec030
revlog: refactor chunk cache interface again
Matt Mackall <mpm@selenic.com>
parents:
8643
diff
changeset
|
830 return decompress(self._chunkraw(rev, rev)) |
ef393d6ec030
revlog: refactor chunk cache interface again
Matt Mackall <mpm@selenic.com>
parents:
8643
diff
changeset
|
831 |
14075
bc101902a68d
revlog: introduce _chunkbase to allow filelog to override
Sune Foldager <cryo@cyanite.org>
parents:
14064
diff
changeset
|
832 def _chunkbase(self, rev): |
bc101902a68d
revlog: introduce _chunkbase to allow filelog to override
Sune Foldager <cryo@cyanite.org>
parents:
14064
diff
changeset
|
833 return self._chunk(rev) |
bc101902a68d
revlog: introduce _chunkbase to allow filelog to override
Sune Foldager <cryo@cyanite.org>
parents:
14064
diff
changeset
|
834 |
8650
ef393d6ec030
revlog: refactor chunk cache interface again
Matt Mackall <mpm@selenic.com>
parents:
8643
diff
changeset
|
835 def _chunkclear(self): |
ef393d6ec030
revlog: refactor chunk cache interface again
Matt Mackall <mpm@selenic.com>
parents:
8643
diff
changeset
|
836 self._chunkcache = (0, '') |
1598
14d1f1868bf6
cleanup of revlog.group when repository is local
Benoit Boissinot <benoit.boissinot@ens-lyon.org>
parents:
1559
diff
changeset
|
837 |
11929
1839a7518b0d
revlog: deltachain() returns chain of revs need to construct a revision
Pradeepkumar Gayam <in3xes@gmail.com>
parents:
11928
diff
changeset
|
838 def deltaparent(self, rev): |
14195
0013d3eeb826
revlog: remove support for parentdelta
Sune Foldager <cryo@cyanite.org>
parents:
14164
diff
changeset
|
839 """return deltaparent of the given revision""" |
14253
c28d5200374c
revlog: support reading generaldelta revlogs
Sune Foldager <cryo@cyanite.org>
parents:
14252
diff
changeset
|
840 base = self.index[rev][3] |
c28d5200374c
revlog: support reading generaldelta revlogs
Sune Foldager <cryo@cyanite.org>
parents:
14252
diff
changeset
|
841 if base == rev: |
14208
d62d597b8974
revlog: compute correct deltaparent in the deltaparent function
Sune Foldager <cryo@cyanite.org>
parents:
14196
diff
changeset
|
842 return nullrev |
14253
c28d5200374c
revlog: support reading generaldelta revlogs
Sune Foldager <cryo@cyanite.org>
parents:
14252
diff
changeset
|
843 elif self._generaldelta: |
c28d5200374c
revlog: support reading generaldelta revlogs
Sune Foldager <cryo@cyanite.org>
parents:
14252
diff
changeset
|
844 return base |
14208
d62d597b8974
revlog: compute correct deltaparent in the deltaparent function
Sune Foldager <cryo@cyanite.org>
parents:
14196
diff
changeset
|
845 else: |
d62d597b8974
revlog: compute correct deltaparent in the deltaparent function
Sune Foldager <cryo@cyanite.org>
parents:
14196
diff
changeset
|
846 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
|
847 |
1941
7518823709a2
revlog.py: factorization and fixes for rev < 0 (nullid)
Benoit Boissinot <benoit.boissinot@ens-lyon.org>
parents:
1853
diff
changeset
|
848 def revdiff(self, rev1, rev2): |
7518823709a2
revlog.py: factorization and fixes for rev < 0 (nullid)
Benoit Boissinot <benoit.boissinot@ens-lyon.org>
parents:
1853
diff
changeset
|
849 """return or calculate a delta between two revisions""" |
14208
d62d597b8974
revlog: compute correct deltaparent in the deltaparent function
Sune Foldager <cryo@cyanite.org>
parents:
14196
diff
changeset
|
850 if rev1 != nullrev and self.deltaparent(rev2) == rev1: |
8650
ef393d6ec030
revlog: refactor chunk cache interface again
Matt Mackall <mpm@selenic.com>
parents:
8643
diff
changeset
|
851 return self._chunk(rev2) |
5005
72082bfced9a
revlog: minor revdiff reorganization
Matt Mackall <mpm@selenic.com>
parents:
5004
diff
changeset
|
852 |
72082bfced9a
revlog: minor revdiff reorganization
Matt Mackall <mpm@selenic.com>
parents:
5004
diff
changeset
|
853 return mdiff.textdiff(self.revision(self.node(rev1)), |
72082bfced9a
revlog: minor revdiff reorganization
Matt Mackall <mpm@selenic.com>
parents:
5004
diff
changeset
|
854 self.revision(self.node(rev2))) |
119
c7a66f9752a4
Add code to retrieve or construct a revlog delta
mpm@selenic.com
parents:
117
diff
changeset
|
855 |
0
9117c6561b0b
Add back links from file revisions to changeset revisions
mpm@selenic.com
parents:
diff
changeset
|
856 def revision(self, node): |
6912 | 857 """return an uncompressed revision of a given node""" |
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
|
858 cachedrev = None |
4980
fc44c8df9d99
revlog: some codingstyle cleanups
Matt Mackall <mpm@selenic.com>
parents:
4979
diff
changeset
|
859 if node == nullid: |
fc44c8df9d99
revlog: some codingstyle cleanups
Matt Mackall <mpm@selenic.com>
parents:
4979
diff
changeset
|
860 return "" |
11930
12547cedc264
revlog: teach revlog to construct a revision from parentdeltas
Pradeepkumar Gayam <in3xes@gmail.com>
parents:
11929
diff
changeset
|
861 if self._cache: |
12547cedc264
revlog: teach revlog to construct a revision from parentdeltas
Pradeepkumar Gayam <in3xes@gmail.com>
parents:
11929
diff
changeset
|
862 if self._cache[0] == node: |
12547cedc264
revlog: teach revlog to construct a revision from parentdeltas
Pradeepkumar Gayam <in3xes@gmail.com>
parents:
11929
diff
changeset
|
863 return self._cache[2] |
11995
ff84cd2bdfaf
revlog.revision(): minor cleanup
Benoit Boissinot <benoit.boissinot@ens-lyon.org>
parents:
11963
diff
changeset
|
864 cachedrev = self._cache[1] |
0
9117c6561b0b
Add back links from file revisions to changeset revisions
mpm@selenic.com
parents:
diff
changeset
|
865 |
1083 | 866 # look up what we need to read |
0
9117c6561b0b
Add back links from file revisions to changeset revisions
mpm@selenic.com
parents:
diff
changeset
|
867 text = None |
9117c6561b0b
Add back links from file revisions to changeset revisions
mpm@selenic.com
parents:
diff
changeset
|
868 rev = self.rev(node) |
9117c6561b0b
Add back links from file revisions to changeset revisions
mpm@selenic.com
parents:
diff
changeset
|
869 |
5004
825516d16b25
revlog: move flag checking out of the offset fastpath
Matt Mackall <mpm@selenic.com>
parents:
4996
diff
changeset
|
870 # check rev flags |
11745
138c055ec57d
revlog: add punched revision flag
Vishakh H <vsh426@gmail.com>
parents:
11693
diff
changeset
|
871 if self.flags(rev) & ~REVIDX_KNOWN_FLAGS: |
5312
fb070713ff36
revlog: more robust for damaged indexes
Matt Mackall <mpm@selenic.com>
parents:
5007
diff
changeset
|
872 raise RevlogError(_('incompatible revision flag %x') % |
11745
138c055ec57d
revlog: add punched revision flag
Vishakh H <vsh426@gmail.com>
parents:
11693
diff
changeset
|
873 (self.flags(rev) & ~REVIDX_KNOWN_FLAGS)) |
5004
825516d16b25
revlog: move flag checking out of the offset fastpath
Matt Mackall <mpm@selenic.com>
parents:
4996
diff
changeset
|
874 |
11995
ff84cd2bdfaf
revlog.revision(): minor cleanup
Benoit Boissinot <benoit.boissinot@ens-lyon.org>
parents:
11963
diff
changeset
|
875 # build delta chain |
11998
e789a811c21d
revlog.revision(): inline deltachain computation
Benoit Boissinot <benoit.boissinot@ens-lyon.org>
parents:
11997
diff
changeset
|
876 chain = [] |
14252
19067884c5f5
revlog: calculate base revisions iteratively
Sune Foldager <cryo@cyanite.org>
parents:
14251
diff
changeset
|
877 index = self.index # for performance |
14253
c28d5200374c
revlog: support reading generaldelta revlogs
Sune Foldager <cryo@cyanite.org>
parents:
14252
diff
changeset
|
878 generaldelta = self._generaldelta |
11998
e789a811c21d
revlog.revision(): inline deltachain computation
Benoit Boissinot <benoit.boissinot@ens-lyon.org>
parents:
11997
diff
changeset
|
879 iterrev = rev |
14252
19067884c5f5
revlog: calculate base revisions iteratively
Sune Foldager <cryo@cyanite.org>
parents:
14251
diff
changeset
|
880 e = index[iterrev] |
19067884c5f5
revlog: calculate base revisions iteratively
Sune Foldager <cryo@cyanite.org>
parents:
14251
diff
changeset
|
881 while iterrev != e[3] and iterrev != cachedrev: |
11998
e789a811c21d
revlog.revision(): inline deltachain computation
Benoit Boissinot <benoit.boissinot@ens-lyon.org>
parents:
11997
diff
changeset
|
882 chain.append(iterrev) |
14253
c28d5200374c
revlog: support reading generaldelta revlogs
Sune Foldager <cryo@cyanite.org>
parents:
14252
diff
changeset
|
883 if generaldelta: |
c28d5200374c
revlog: support reading generaldelta revlogs
Sune Foldager <cryo@cyanite.org>
parents:
14252
diff
changeset
|
884 iterrev = e[3] |
c28d5200374c
revlog: support reading generaldelta revlogs
Sune Foldager <cryo@cyanite.org>
parents:
14252
diff
changeset
|
885 else: |
c28d5200374c
revlog: support reading generaldelta revlogs
Sune Foldager <cryo@cyanite.org>
parents:
14252
diff
changeset
|
886 iterrev -= 1 |
14252
19067884c5f5
revlog: calculate base revisions iteratively
Sune Foldager <cryo@cyanite.org>
parents:
14251
diff
changeset
|
887 e = index[iterrev] |
11998
e789a811c21d
revlog.revision(): inline deltachain computation
Benoit Boissinot <benoit.boissinot@ens-lyon.org>
parents:
11997
diff
changeset
|
888 chain.reverse() |
e789a811c21d
revlog.revision(): inline deltachain computation
Benoit Boissinot <benoit.boissinot@ens-lyon.org>
parents:
11997
diff
changeset
|
889 base = iterrev |
11995
ff84cd2bdfaf
revlog.revision(): minor cleanup
Benoit Boissinot <benoit.boissinot@ens-lyon.org>
parents:
11963
diff
changeset
|
890 |
11998
e789a811c21d
revlog.revision(): inline deltachain computation
Benoit Boissinot <benoit.boissinot@ens-lyon.org>
parents:
11997
diff
changeset
|
891 if iterrev == cachedrev: |
e789a811c21d
revlog.revision(): inline deltachain computation
Benoit Boissinot <benoit.boissinot@ens-lyon.org>
parents:
11997
diff
changeset
|
892 # cache hit |
9420
d0db168136dc
manifest/revlog: do not let the revlog cache mutable objects
Benoit Boissinot <benoit.boissinot@ens-lyon.org>
parents:
9029
diff
changeset
|
893 text = self._cache[2] |
0
9117c6561b0b
Add back links from file revisions to changeset revisions
mpm@selenic.com
parents:
diff
changeset
|
894 |
11754
6ccd130eab0e
revlog: drop cache after use to save memory footprint
Matt Mackall <mpm@selenic.com>
parents:
11539
diff
changeset
|
895 # drop cache to save memory |
6ccd130eab0e
revlog: drop cache after use to save memory footprint
Matt Mackall <mpm@selenic.com>
parents:
11539
diff
changeset
|
896 self._cache = None |
6ccd130eab0e
revlog: drop cache after use to save memory footprint
Matt Mackall <mpm@selenic.com>
parents:
11539
diff
changeset
|
897 |
8650
ef393d6ec030
revlog: refactor chunk cache interface again
Matt Mackall <mpm@selenic.com>
parents:
8643
diff
changeset
|
898 self._chunkraw(base, rev) |
ef393d6ec030
revlog: refactor chunk cache interface again
Matt Mackall <mpm@selenic.com>
parents:
8643
diff
changeset
|
899 if text is None: |
14075
bc101902a68d
revlog: introduce _chunkbase to allow filelog to override
Sune Foldager <cryo@cyanite.org>
parents:
14064
diff
changeset
|
900 text = self._chunkbase(base) |
8650
ef393d6ec030
revlog: refactor chunk cache interface again
Matt Mackall <mpm@selenic.com>
parents:
8643
diff
changeset
|
901 |
11930
12547cedc264
revlog: teach revlog to construct a revision from parentdeltas
Pradeepkumar Gayam <in3xes@gmail.com>
parents:
11929
diff
changeset
|
902 bins = [self._chunk(r) for r in chain] |
4989
1aaed3d69772
revlog: eliminate diff and patches functions
Matt Mackall <mpm@selenic.com>
parents:
4988
diff
changeset
|
903 text = mdiff.patches(text, bins) |
13239
12ed25f39d0b
revlog: break hash checking into subfunction
Matt Mackall <mpm@selenic.com>
parents:
13031
diff
changeset
|
904 |
13276
ba6a63339f7c
revlog: pass rev to _checkhash
Matt Mackall <mpm@selenic.com>
parents:
13275
diff
changeset
|
905 text = self._checkhash(text, node, rev) |
13239
12ed25f39d0b
revlog: break hash checking into subfunction
Matt Mackall <mpm@selenic.com>
parents:
13031
diff
changeset
|
906 |
12ed25f39d0b
revlog: break hash checking into subfunction
Matt Mackall <mpm@selenic.com>
parents:
13031
diff
changeset
|
907 self._cache = (node, rev, text) |
12ed25f39d0b
revlog: break hash checking into subfunction
Matt Mackall <mpm@selenic.com>
parents:
13031
diff
changeset
|
908 return text |
12ed25f39d0b
revlog: break hash checking into subfunction
Matt Mackall <mpm@selenic.com>
parents:
13031
diff
changeset
|
909 |
13276
ba6a63339f7c
revlog: pass rev to _checkhash
Matt Mackall <mpm@selenic.com>
parents:
13275
diff
changeset
|
910 def _checkhash(self, text, node, rev): |
1598
14d1f1868bf6
cleanup of revlog.group when repository is local
Benoit Boissinot <benoit.boissinot@ens-lyon.org>
parents:
1559
diff
changeset
|
911 p1, p2 = self.parents(node) |
14196
e7483ec3c374
revlog: remove support for punched/shallow
Sune Foldager <cryo@cyanite.org>
parents:
14195
diff
changeset
|
912 if node != hash(text, p1, p2): |
1402
9d2c2e6b32b5
i18n part2: use '_' for all strings who are part of the user interface
Benoit Boissinot <benoit.boissinot@ens-lyon.org>
parents:
1400
diff
changeset
|
913 raise RevlogError(_("integrity check failed on %s:%d") |
8643
648af8a6aa41
revlog: report indexfile rather than datafile for integrity check
Matt Mackall <mpm@selenic.com>
parents:
8641
diff
changeset
|
914 % (self.indexfile, rev)) |
515 | 915 return text |
0
9117c6561b0b
Add back links from file revisions to changeset revisions
mpm@selenic.com
parents:
diff
changeset
|
916 |
2075
343aeefb553b
Make the appendfile class inline-data index friendly
mason@suse.com
parents:
2073
diff
changeset
|
917 def checkinlinesize(self, tr, fp=None): |
10913
f2ecc5733c89
revlog: factor out _maxinline global.
Greg Ward <greg-hg@gerg.ca>
parents:
10404
diff
changeset
|
918 if not self._inline or (self.start(-2) + self.length(-2)) < _maxinline: |
2073 | 919 return |
8315
c8493310ad9b
revlog: use index to find index size
Matt Mackall <mpm@selenic.com>
parents:
8314
diff
changeset
|
920 |
2084 | 921 trinfo = tr.find(self.indexfile) |
8527
f9a80054dd3c
use 'x is None' instead of 'x == None'
Martin Geisler <mg@lazybytes.net>
parents:
8464
diff
changeset
|
922 if trinfo is None: |
3680
69cf255a55a1
Indentation cleanups for 2956948b81f3.
Thomas Arendsen Hein <thomas@intevation.de>
parents:
3679
diff
changeset
|
923 raise RevlogError(_("%s not found in the transaction") |
69cf255a55a1
Indentation cleanups for 2956948b81f3.
Thomas Arendsen Hein <thomas@intevation.de>
parents:
3679
diff
changeset
|
924 % self.indexfile) |
2084 | 925 |
926 trindex = trinfo[2] | |
927 dataoff = self.start(trindex) | |
928 | |
929 tr.add(self.datafile, dataoff) | |
8315
c8493310ad9b
revlog: use index to find index size
Matt Mackall <mpm@selenic.com>
parents:
8314
diff
changeset
|
930 |
8317
5cdf4067857a
revlog: use chunk cache to avoid rereading when splitting inline files
Matt Mackall <mpm@selenic.com>
parents:
8316
diff
changeset
|
931 if fp: |
5cdf4067857a
revlog: use chunk cache to avoid rereading when splitting inline files
Matt Mackall <mpm@selenic.com>
parents:
8316
diff
changeset
|
932 fp.flush() |
5cdf4067857a
revlog: use chunk cache to avoid rereading when splitting inline files
Matt Mackall <mpm@selenic.com>
parents:
8316
diff
changeset
|
933 fp.close() |
8315
c8493310ad9b
revlog: use index to find index size
Matt Mackall <mpm@selenic.com>
parents:
8314
diff
changeset
|
934 |
2073 | 935 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
|
936 try: |
6750
fb42030d79d6
add __len__ and __iter__ methods to repo and revlog
Matt Mackall <mpm@selenic.com>
parents:
6703
diff
changeset
|
937 for r in self: |
8650
ef393d6ec030
revlog: refactor chunk cache interface again
Matt Mackall <mpm@selenic.com>
parents:
8643
diff
changeset
|
938 df.write(self._chunkraw(r, r)) |
6261
7c8101b5ceb1
revlog: make sure the files are closed after an exception happens
Benoit Boissinot <benoit.boissinot@ens-lyon.org>
parents:
6228
diff
changeset
|
939 finally: |
7c8101b5ceb1
revlog: make sure the files are closed after an exception happens
Benoit Boissinot <benoit.boissinot@ens-lyon.org>
parents:
6228
diff
changeset
|
940 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
|
941 |
2076
d007df6daf8e
Create an atomic opener that does not automatically rename on close
mason@suse.com
parents:
2075
diff
changeset
|
942 fp = self.opener(self.indexfile, 'w', atomictemp=True) |
2073 | 943 self.version &= ~(REVLOGNGINLINEDATA) |
4982
9672e3c42b0c
revlog: change _inline from a function to a variable
Matt Mackall <mpm@selenic.com>
parents:
4981
diff
changeset
|
944 self._inline = False |
6750
fb42030d79d6
add __len__ and __iter__ methods to repo and revlog
Matt Mackall <mpm@selenic.com>
parents:
6703
diff
changeset
|
945 for i in self: |
5338
f87685355c9c
revlog: fix revlogio.packentry corner case
Alexis S. L. Carvalho <alexis@cecm.usp.br>
parents:
5325
diff
changeset
|
946 e = self._io.packentry(self.index[i], self.node, self.version, i) |
2073 | 947 fp.write(e) |
948 | |
15057
774da7121fc9
atomictempfile: make close() consistent with other file-like objects.
Greg Ward <greg@gerg.ca>
parents:
14960
diff
changeset
|
949 # 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
|
950 # real index |
15057
774da7121fc9
atomictempfile: make close() consistent with other file-like objects.
Greg Ward <greg@gerg.ca>
parents:
14960
diff
changeset
|
951 fp.close() |
2084 | 952 |
8650
ef393d6ec030
revlog: refactor chunk cache interface again
Matt Mackall <mpm@selenic.com>
parents:
8643
diff
changeset
|
953 tr.replace(self.indexfile, trindex * self._io.size) |
ef393d6ec030
revlog: refactor chunk cache interface again
Matt Mackall <mpm@selenic.com>
parents:
8643
diff
changeset
|
954 self._chunkclear() |
2073 | 955 |
11962
5f7ee3db3dd8
revlog._addrevision(): make the parent of the cached delta explicit
Benoit Boissinot <benoit.boissinot@ens-lyon.org>
parents:
11935
diff
changeset
|
956 def addrevision(self, text, transaction, link, p1, p2, cachedelta=None): |
1083 | 957 """add a revision to the log |
958 | |
959 text - the revision data to add | |
960 transaction - the transaction object used for rollback | |
961 link - the linkrev data to add | |
962 p1, p2 - the parent nodeids of the revision | |
12012
bade7a9c5c07
revlog: fix docstring
Benoit Boissinot <benoit.boissinot@ens-lyon.org>
parents:
12011
diff
changeset
|
963 cachedelta - an optional precomputed delta |
1083 | 964 """ |
12023
44c22dc193a4
revlog.addrevision(): move computation of nodeid in addrevision()
Benoit Boissinot <benoit.boissinot@ens-lyon.org>
parents:
12012
diff
changeset
|
965 node = hash(text, p1, p2) |
14196
e7483ec3c374
revlog: remove support for punched/shallow
Sune Foldager <cryo@cyanite.org>
parents:
14195
diff
changeset
|
966 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
|
967 return node |
44c22dc193a4
revlog.addrevision(): move computation of nodeid in addrevision()
Benoit Boissinot <benoit.boissinot@ens-lyon.org>
parents:
12012
diff
changeset
|
968 |
4981
e7131935fbb3
revlog: simplify addrevision
Matt Mackall <mpm@selenic.com>
parents:
4980
diff
changeset
|
969 dfh = None |
4982
9672e3c42b0c
revlog: change _inline from a function to a variable
Matt Mackall <mpm@selenic.com>
parents:
4981
diff
changeset
|
970 if not self._inline: |
3390
a74addddd092
make revlog.addgroup pass its file handles to addrevision
Alexis S. L. Carvalho <alexis@cecm.usp.br>
parents:
3360
diff
changeset
|
971 dfh = self.opener(self.datafile, "a") |
a74addddd092
make revlog.addgroup pass its file handles to addrevision
Alexis S. L. Carvalho <alexis@cecm.usp.br>
parents:
3360
diff
changeset
|
972 ifh = self.opener(self.indexfile, "a+") |
6261
7c8101b5ceb1
revlog: make sure the files are closed after an exception happens
Benoit Boissinot <benoit.boissinot@ens-lyon.org>
parents:
6228
diff
changeset
|
973 try: |
12023
44c22dc193a4
revlog.addrevision(): move computation of nodeid in addrevision()
Benoit Boissinot <benoit.boissinot@ens-lyon.org>
parents:
12012
diff
changeset
|
974 return self._addrevision(node, text, transaction, link, p1, p2, |
11962
5f7ee3db3dd8
revlog._addrevision(): make the parent of the cached delta explicit
Benoit Boissinot <benoit.boissinot@ens-lyon.org>
parents:
11935
diff
changeset
|
975 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
|
976 finally: |
7c8101b5ceb1
revlog: make sure the files are closed after an exception happens
Benoit Boissinot <benoit.boissinot@ens-lyon.org>
parents:
6228
diff
changeset
|
977 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
|
978 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
|
979 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
|
980 |
12023
44c22dc193a4
revlog.addrevision(): move computation of nodeid in addrevision()
Benoit Boissinot <benoit.boissinot@ens-lyon.org>
parents:
12012
diff
changeset
|
981 def _addrevision(self, node, text, transaction, link, p1, p2, |
11962
5f7ee3db3dd8
revlog._addrevision(): make the parent of the cached delta explicit
Benoit Boissinot <benoit.boissinot@ens-lyon.org>
parents:
11935
diff
changeset
|
982 cachedelta, ifh, dfh): |
14292
c97d8485b5fa
revlog: add docstring to _addrevision
Sune Foldager <cryo@cyanite.org>
parents:
14270
diff
changeset
|
983 """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
|
984 |
14292
c97d8485b5fa
revlog: add docstring to _addrevision
Sune Foldager <cryo@cyanite.org>
parents:
14270
diff
changeset
|
985 see addrevision for argument descriptions. |
c97d8485b5fa
revlog: add docstring to _addrevision
Sune Foldager <cryo@cyanite.org>
parents:
14270
diff
changeset
|
986 invariants: |
c97d8485b5fa
revlog: add docstring to _addrevision
Sune Foldager <cryo@cyanite.org>
parents:
14270
diff
changeset
|
987 - text is optional (can be None); if not set, cachedelta must be set. |
c97d8485b5fa
revlog: add docstring to _addrevision
Sune Foldager <cryo@cyanite.org>
parents:
14270
diff
changeset
|
988 if both are set, they must correspond to eachother. |
c97d8485b5fa
revlog: add docstring to _addrevision
Sune Foldager <cryo@cyanite.org>
parents:
14270
diff
changeset
|
989 """ |
12886
c25945a148c1
revlog: fix buildtext local scope
Matt Mackall <mpm@selenic.com>
parents:
12624
diff
changeset
|
990 btext = [text] |
c25945a148c1
revlog: fix buildtext local scope
Matt Mackall <mpm@selenic.com>
parents:
12624
diff
changeset
|
991 def buildtext(): |
c25945a148c1
revlog: fix buildtext local scope
Matt Mackall <mpm@selenic.com>
parents:
12624
diff
changeset
|
992 if btext[0] is not None: |
c25945a148c1
revlog: fix buildtext local scope
Matt Mackall <mpm@selenic.com>
parents:
12624
diff
changeset
|
993 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
|
994 # flush any pending writes here so we can read it in revision |
8f97b50a8d10
revlog._addrevision(): allow text argument to be None, build it lazily
Benoit Boissinot <benoit.boissinot@ens-lyon.org>
parents:
12336
diff
changeset
|
995 if dfh: |
8f97b50a8d10
revlog._addrevision(): allow text argument to be None, build it lazily
Benoit Boissinot <benoit.boissinot@ens-lyon.org>
parents:
12336
diff
changeset
|
996 dfh.flush() |
8f97b50a8d10
revlog._addrevision(): allow text argument to be None, build it lazily
Benoit Boissinot <benoit.boissinot@ens-lyon.org>
parents:
12336
diff
changeset
|
997 ifh.flush() |
8f97b50a8d10
revlog._addrevision(): allow text argument to be None, build it lazily
Benoit Boissinot <benoit.boissinot@ens-lyon.org>
parents:
12336
diff
changeset
|
998 basetext = self.revision(self.node(cachedelta[0])) |
12886
c25945a148c1
revlog: fix buildtext local scope
Matt Mackall <mpm@selenic.com>
parents:
12624
diff
changeset
|
999 btext[0] = mdiff.patch(basetext, cachedelta[1]) |
c25945a148c1
revlog: fix buildtext local scope
Matt Mackall <mpm@selenic.com>
parents:
12624
diff
changeset
|
1000 chk = hash(btext[0], p1, p2) |
12623
8f97b50a8d10
revlog._addrevision(): allow text argument to be None, build it lazily
Benoit Boissinot <benoit.boissinot@ens-lyon.org>
parents:
12336
diff
changeset
|
1001 if chk != node: |
8f97b50a8d10
revlog._addrevision(): allow text argument to be None, build it lazily
Benoit Boissinot <benoit.boissinot@ens-lyon.org>
parents:
12336
diff
changeset
|
1002 raise RevlogError(_("consistency error in delta")) |
12886
c25945a148c1
revlog: fix buildtext local scope
Matt Mackall <mpm@selenic.com>
parents:
12624
diff
changeset
|
1003 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
|
1004 |
12888
ad01fe38afe6
revlog: extract delta building to a subfunction
Matt Mackall <mpm@selenic.com>
parents:
12887
diff
changeset
|
1005 def builddelta(rev): |
ad01fe38afe6
revlog: extract delta building to a subfunction
Matt Mackall <mpm@selenic.com>
parents:
12887
diff
changeset
|
1006 # can we use the cached delta? |
ad01fe38afe6
revlog: extract delta building to a subfunction
Matt Mackall <mpm@selenic.com>
parents:
12887
diff
changeset
|
1007 if cachedelta and cachedelta[0] == rev: |
ad01fe38afe6
revlog: extract delta building to a subfunction
Matt Mackall <mpm@selenic.com>
parents:
12887
diff
changeset
|
1008 delta = cachedelta[1] |
ad01fe38afe6
revlog: extract delta building to a subfunction
Matt Mackall <mpm@selenic.com>
parents:
12887
diff
changeset
|
1009 else: |
ad01fe38afe6
revlog: extract delta building to a subfunction
Matt Mackall <mpm@selenic.com>
parents:
12887
diff
changeset
|
1010 t = buildtext() |
ad01fe38afe6
revlog: extract delta building to a subfunction
Matt Mackall <mpm@selenic.com>
parents:
12887
diff
changeset
|
1011 ptext = self.revision(self.node(rev)) |
ad01fe38afe6
revlog: extract delta building to a subfunction
Matt Mackall <mpm@selenic.com>
parents:
12887
diff
changeset
|
1012 delta = mdiff.textdiff(ptext, t) |
ad01fe38afe6
revlog: extract delta building to a subfunction
Matt Mackall <mpm@selenic.com>
parents:
12887
diff
changeset
|
1013 data = compress(delta) |
ad01fe38afe6
revlog: extract delta building to a subfunction
Matt Mackall <mpm@selenic.com>
parents:
12887
diff
changeset
|
1014 l = len(data[1]) + len(data[0]) |
14296
62e25c63fb3a
revlog: fix bug in chainbase cache
Sune Foldager <cryo@cyanite.org>
parents:
14292
diff
changeset
|
1015 if basecache[0] == rev: |
14270
d6907a5674a2
revlog: support writing generaldelta revlogs
Sune Foldager <cryo@cyanite.org>
parents:
14253
diff
changeset
|
1016 chainbase = basecache[1] |
14252
19067884c5f5
revlog: calculate base revisions iteratively
Sune Foldager <cryo@cyanite.org>
parents:
14251
diff
changeset
|
1017 else: |
14270
d6907a5674a2
revlog: support writing generaldelta revlogs
Sune Foldager <cryo@cyanite.org>
parents:
14253
diff
changeset
|
1018 chainbase = self.chainbase(rev) |
d6907a5674a2
revlog: support writing generaldelta revlogs
Sune Foldager <cryo@cyanite.org>
parents:
14253
diff
changeset
|
1019 dist = l + offset - self.start(chainbase) |
d6907a5674a2
revlog: support writing generaldelta revlogs
Sune Foldager <cryo@cyanite.org>
parents:
14253
diff
changeset
|
1020 if self._generaldelta: |
d6907a5674a2
revlog: support writing generaldelta revlogs
Sune Foldager <cryo@cyanite.org>
parents:
14253
diff
changeset
|
1021 base = rev |
d6907a5674a2
revlog: support writing generaldelta revlogs
Sune Foldager <cryo@cyanite.org>
parents:
14253
diff
changeset
|
1022 else: |
d6907a5674a2
revlog: support writing generaldelta revlogs
Sune Foldager <cryo@cyanite.org>
parents:
14253
diff
changeset
|
1023 base = chainbase |
14296
62e25c63fb3a
revlog: fix bug in chainbase cache
Sune Foldager <cryo@cyanite.org>
parents:
14292
diff
changeset
|
1024 return dist, l, data, base, chainbase |
12888
ad01fe38afe6
revlog: extract delta building to a subfunction
Matt Mackall <mpm@selenic.com>
parents:
12887
diff
changeset
|
1025 |
6750
fb42030d79d6
add __len__ and __iter__ methods to repo and revlog
Matt Mackall <mpm@selenic.com>
parents:
6703
diff
changeset
|
1026 curr = len(self) |
4981
e7131935fbb3
revlog: simplify addrevision
Matt Mackall <mpm@selenic.com>
parents:
4980
diff
changeset
|
1027 prev = curr - 1 |
14296
62e25c63fb3a
revlog: fix bug in chainbase cache
Sune Foldager <cryo@cyanite.org>
parents:
14292
diff
changeset
|
1028 base = chainbase = curr |
4981
e7131935fbb3
revlog: simplify addrevision
Matt Mackall <mpm@selenic.com>
parents:
4980
diff
changeset
|
1029 offset = self.end(prev) |
11931
6051db1327f8
revlog: append delta against p1
Pradeepkumar Gayam <in3xes@gmail.com>
parents:
11930
diff
changeset
|
1030 flags = 0 |
11962
5f7ee3db3dd8
revlog._addrevision(): make the parent of the cached delta explicit
Benoit Boissinot <benoit.boissinot@ens-lyon.org>
parents:
11935
diff
changeset
|
1031 d = None |
14296
62e25c63fb3a
revlog: fix bug in chainbase cache
Sune Foldager <cryo@cyanite.org>
parents:
14292
diff
changeset
|
1032 basecache = self._basecache |
12889
5482c6b826f4
revlog: precalculate p1 and p2 revisions
Matt Mackall <mpm@selenic.com>
parents:
12888
diff
changeset
|
1033 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
|
1034 |
11963
7c3aa579d98a
parendelta: fix computation of base rev (fixes issue2337)
Benoit Boissinot <benoit.boissinot@ens-lyon.org>
parents:
11962
diff
changeset
|
1035 # should we try to build a delta? |
12890
b1c839659140
revlog: choose best delta for parentdelta (issue2466)
Matt Mackall <mpm@selenic.com>
parents:
12889
diff
changeset
|
1036 if prev != nullrev: |
14270
d6907a5674a2
revlog: support writing generaldelta revlogs
Sune Foldager <cryo@cyanite.org>
parents:
14253
diff
changeset
|
1037 if self._generaldelta: |
14301
f94993769c87
revlog: improve delta generation heuristics for generaldelta
Sune Foldager <cryo@cyanite.org>
parents:
14296
diff
changeset
|
1038 if p1r >= basecache[1]: |
f94993769c87
revlog: improve delta generation heuristics for generaldelta
Sune Foldager <cryo@cyanite.org>
parents:
14296
diff
changeset
|
1039 d = builddelta(p1r) |
f94993769c87
revlog: improve delta generation heuristics for generaldelta
Sune Foldager <cryo@cyanite.org>
parents:
14296
diff
changeset
|
1040 elif p2r >= basecache[1]: |
f94993769c87
revlog: improve delta generation heuristics for generaldelta
Sune Foldager <cryo@cyanite.org>
parents:
14296
diff
changeset
|
1041 d = builddelta(p2r) |
f94993769c87
revlog: improve delta generation heuristics for generaldelta
Sune Foldager <cryo@cyanite.org>
parents:
14296
diff
changeset
|
1042 else: |
f94993769c87
revlog: improve delta generation heuristics for generaldelta
Sune Foldager <cryo@cyanite.org>
parents:
14296
diff
changeset
|
1043 d = builddelta(prev) |
14270
d6907a5674a2
revlog: support writing generaldelta revlogs
Sune Foldager <cryo@cyanite.org>
parents:
14253
diff
changeset
|
1044 else: |
d6907a5674a2
revlog: support writing generaldelta revlogs
Sune Foldager <cryo@cyanite.org>
parents:
14253
diff
changeset
|
1045 d = builddelta(prev) |
14296
62e25c63fb3a
revlog: fix bug in chainbase cache
Sune Foldager <cryo@cyanite.org>
parents:
14292
diff
changeset
|
1046 dist, l, data, base, chainbase = d |
0
9117c6561b0b
Add back links from file revisions to changeset revisions
mpm@selenic.com
parents:
diff
changeset
|
1047 |
9117c6561b0b
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mpm@selenic.com
parents:
diff
changeset
|
1048 # full versions are inserted when the needed deltas |
9117c6561b0b
Add back links from file revisions to changeset revisions
mpm@selenic.com
parents:
diff
changeset
|
1049 # become comparable to the uncompressed text |
12623
8f97b50a8d10
revlog._addrevision(): allow text argument to be None, build it lazily
Benoit Boissinot <benoit.boissinot@ens-lyon.org>
parents:
12336
diff
changeset
|
1050 if text is None: |
8f97b50a8d10
revlog._addrevision(): allow text argument to be None, build it lazily
Benoit Boissinot <benoit.boissinot@ens-lyon.org>
parents:
12336
diff
changeset
|
1051 textlen = mdiff.patchedsize(self.rawsize(cachedelta[0]), |
8f97b50a8d10
revlog._addrevision(): allow text argument to be None, build it lazily
Benoit Boissinot <benoit.boissinot@ens-lyon.org>
parents:
12336
diff
changeset
|
1052 cachedelta[1]) |
8f97b50a8d10
revlog._addrevision(): allow text argument to be None, build it lazily
Benoit Boissinot <benoit.boissinot@ens-lyon.org>
parents:
12336
diff
changeset
|
1053 else: |
8f97b50a8d10
revlog._addrevision(): allow text argument to be None, build it lazily
Benoit Boissinot <benoit.boissinot@ens-lyon.org>
parents:
12336
diff
changeset
|
1054 textlen = len(text) |
14196
e7483ec3c374
revlog: remove support for punched/shallow
Sune Foldager <cryo@cyanite.org>
parents:
14195
diff
changeset
|
1055 if d is None or dist > textlen * 2: |
12886
c25945a148c1
revlog: fix buildtext local scope
Matt Mackall <mpm@selenic.com>
parents:
12624
diff
changeset
|
1056 text = buildtext() |
0
9117c6561b0b
Add back links from file revisions to changeset revisions
mpm@selenic.com
parents:
diff
changeset
|
1057 data = compress(text) |
1533
3d11f81c9145
Reduce string duplication in compression code
mason@suse.com
parents:
1509
diff
changeset
|
1058 l = len(data[1]) + len(data[0]) |
14296
62e25c63fb3a
revlog: fix bug in chainbase cache
Sune Foldager <cryo@cyanite.org>
parents:
14292
diff
changeset
|
1059 base = chainbase = curr |
0
9117c6561b0b
Add back links from file revisions to changeset revisions
mpm@selenic.com
parents:
diff
changeset
|
1060 |
12623
8f97b50a8d10
revlog._addrevision(): allow text argument to be None, build it lazily
Benoit Boissinot <benoit.boissinot@ens-lyon.org>
parents:
12336
diff
changeset
|
1061 e = (offset_type(offset, flags), l, textlen, |
12889
5482c6b826f4
revlog: precalculate p1 and p2 revisions
Matt Mackall <mpm@selenic.com>
parents:
12888
diff
changeset
|
1062 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
|
1063 self.index.insert(-1, e) |
4981
e7131935fbb3
revlog: simplify addrevision
Matt Mackall <mpm@selenic.com>
parents:
4980
diff
changeset
|
1064 self.nodemap[node] = curr |
4977
6cb30bc4ca32
revlog: parse revlogv0 indexes into v1 internally
Matt Mackall <mpm@selenic.com>
parents:
4976
diff
changeset
|
1065 |
5338
f87685355c9c
revlog: fix revlogio.packentry corner case
Alexis S. L. Carvalho <alexis@cecm.usp.br>
parents:
5325
diff
changeset
|
1066 entry = self._io.packentry(e, self.node, self.version, curr) |
4982
9672e3c42b0c
revlog: change _inline from a function to a variable
Matt Mackall <mpm@selenic.com>
parents:
4981
diff
changeset
|
1067 if not self._inline: |
2073 | 1068 transaction.add(self.datafile, offset) |
4981
e7131935fbb3
revlog: simplify addrevision
Matt Mackall <mpm@selenic.com>
parents:
4980
diff
changeset
|
1069 transaction.add(self.indexfile, curr * len(entry)) |
2073 | 1070 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
|
1071 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
|
1072 dfh.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
|
1073 dfh.flush() |
4981
e7131935fbb3
revlog: simplify addrevision
Matt Mackall <mpm@selenic.com>
parents:
4980
diff
changeset
|
1074 ifh.write(entry) |
2073 | 1075 else: |
4996
a0d37976cd5b
revlog: avoid some unnecessary seek/tell syscalls
Matt Mackall <mpm@selenic.com>
parents:
4994
diff
changeset
|
1076 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
|
1077 transaction.add(self.indexfile, offset, curr) |
4981
e7131935fbb3
revlog: simplify addrevision
Matt Mackall <mpm@selenic.com>
parents:
4980
diff
changeset
|
1078 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
|
1079 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
|
1080 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
|
1081 self.checkinlinesize(transaction, ifh) |
2073 | 1082 |
9420
d0db168136dc
manifest/revlog: do not let the revlog cache mutable objects
Benoit Boissinot <benoit.boissinot@ens-lyon.org>
parents:
9029
diff
changeset
|
1083 if type(text) == str: # only accept immutable objects |
d0db168136dc
manifest/revlog: do not let the revlog cache mutable objects
Benoit Boissinot <benoit.boissinot@ens-lyon.org>
parents:
9029
diff
changeset
|
1084 self._cache = (node, curr, text) |
14296
62e25c63fb3a
revlog: fix bug in chainbase cache
Sune Foldager <cryo@cyanite.org>
parents:
14292
diff
changeset
|
1085 self._basecache = (curr, chainbase) |
0
9117c6561b0b
Add back links from file revisions to changeset revisions
mpm@selenic.com
parents:
diff
changeset
|
1086 return node |
9117c6561b0b
Add back links from file revisions to changeset revisions
mpm@selenic.com
parents:
diff
changeset
|
1087 |
14365
a8e3931e3fb5
revlog: linearize created changegroups in generaldelta revlogs
Sune Foldager <cryo@cyanite.org>
parents:
14334
diff
changeset
|
1088 def group(self, nodelist, bundler, reorder=None): |
9437
1c4e4004f3a6
Improve some docstrings relating to changegroups and prepush().
Greg Ward <greg-hg@gerg.ca>
parents:
9420
diff
changeset
|
1089 """Calculate a delta group, yielding a sequence of changegroup chunks |
1c4e4004f3a6
Improve some docstrings relating to changegroups and prepush().
Greg Ward <greg-hg@gerg.ca>
parents:
9420
diff
changeset
|
1090 (strings). |
46 | 1091 |
1083 | 1092 Given a list of changeset revs, return a set of deltas and |
11999
62e2bbf523f2
revlog: generate full revisions when parent node is missing
Vishakh H <vsh426@gmail.com>
parents:
11998
diff
changeset
|
1093 metadata corresponding to nodes. The first delta is |
62e2bbf523f2
revlog: generate full revisions when parent node is missing
Vishakh H <vsh426@gmail.com>
parents:
11998
diff
changeset
|
1094 first parent(nodelist[0]) -> nodelist[0], the receiver is |
62e2bbf523f2
revlog: generate full revisions when parent node is missing
Vishakh H <vsh426@gmail.com>
parents:
11998
diff
changeset
|
1095 guaranteed to have this parent as it has all history before |
62e2bbf523f2
revlog: generate full revisions when parent node is missing
Vishakh H <vsh426@gmail.com>
parents:
11998
diff
changeset
|
1096 these changesets. In the case firstparent is nullrev the |
62e2bbf523f2
revlog: generate full revisions when parent node is missing
Vishakh H <vsh426@gmail.com>
parents:
11998
diff
changeset
|
1097 changegroup starts with a full revision. |
1083 | 1098 """ |
46 | 1099 |
14523
b4175b72bbd8
revlog: bail out earlier in group when we have no chunks
Sune Foldager <cryo@cyanite.org>
parents:
14494
diff
changeset
|
1100 # if we don't have any revisions touched by these changesets, bail |
b4175b72bbd8
revlog: bail out earlier in group when we have no chunks
Sune Foldager <cryo@cyanite.org>
parents:
14494
diff
changeset
|
1101 if len(nodelist) == 0: |
b4175b72bbd8
revlog: bail out earlier in group when we have no chunks
Sune Foldager <cryo@cyanite.org>
parents:
14494
diff
changeset
|
1102 yield bundler.close() |
b4175b72bbd8
revlog: bail out earlier in group when we have no chunks
Sune Foldager <cryo@cyanite.org>
parents:
14494
diff
changeset
|
1103 return |
b4175b72bbd8
revlog: bail out earlier in group when we have no chunks
Sune Foldager <cryo@cyanite.org>
parents:
14494
diff
changeset
|
1104 |
14365
a8e3931e3fb5
revlog: linearize created changegroups in generaldelta revlogs
Sune Foldager <cryo@cyanite.org>
parents:
14334
diff
changeset
|
1105 # for generaldelta revlogs, we linearize the revs; this will both be |
a8e3931e3fb5
revlog: linearize created changegroups in generaldelta revlogs
Sune Foldager <cryo@cyanite.org>
parents:
14334
diff
changeset
|
1106 # much quicker and generate a much smaller bundle |
a8e3931e3fb5
revlog: linearize created changegroups in generaldelta revlogs
Sune Foldager <cryo@cyanite.org>
parents:
14334
diff
changeset
|
1107 if (self._generaldelta and reorder is not False) or reorder: |
a8e3931e3fb5
revlog: linearize created changegroups in generaldelta revlogs
Sune Foldager <cryo@cyanite.org>
parents:
14334
diff
changeset
|
1108 dag = dagutil.revlogdag(self) |
a8e3931e3fb5
revlog: linearize created changegroups in generaldelta revlogs
Sune Foldager <cryo@cyanite.org>
parents:
14334
diff
changeset
|
1109 revs = set(self.rev(n) for n in nodelist) |
a8e3931e3fb5
revlog: linearize created changegroups in generaldelta revlogs
Sune Foldager <cryo@cyanite.org>
parents:
14334
diff
changeset
|
1110 revs = dag.linearize(revs) |
a8e3931e3fb5
revlog: linearize created changegroups in generaldelta revlogs
Sune Foldager <cryo@cyanite.org>
parents:
14334
diff
changeset
|
1111 else: |
a8e3931e3fb5
revlog: linearize created changegroups in generaldelta revlogs
Sune Foldager <cryo@cyanite.org>
parents:
14334
diff
changeset
|
1112 revs = sorted([self.rev(n) for n in nodelist]) |
8634
7659eecd9da2
changegroup: the node list might be an empty generator (fix issue1678)
Benoit Boissinot <benoit.boissinot@ens-lyon.org>
parents:
8624
diff
changeset
|
1113 |
46 | 1114 # add the parent of the first rev |
8391
27bffd81d265
revlog: slightly tune group() by not going rev->node->rev
Peter Arrenbrecht <peter.arrenbrecht@gmail.com>
parents:
8318
diff
changeset
|
1115 p = self.parentrevs(revs[0])[0] |
27bffd81d265
revlog: slightly tune group() by not going rev->node->rev
Peter Arrenbrecht <peter.arrenbrecht@gmail.com>
parents:
8318
diff
changeset
|
1116 revs.insert(0, p) |
46 | 1117 |
1118 # build deltas | |
13768
10aea25fb519
revlog: change variable name to avoid reuse
Matt Mackall <mpm@selenic.com>
parents:
13741
diff
changeset
|
1119 for r in xrange(len(revs) - 1): |
14143
da635d3c5620
changegroup: new bundler API
Benoit Boissinot <benoit.boissinot@ens-lyon.org>
parents:
14141
diff
changeset
|
1120 prev, curr = revs[r], revs[r + 1] |
da635d3c5620
changegroup: new bundler API
Benoit Boissinot <benoit.boissinot@ens-lyon.org>
parents:
14141
diff
changeset
|
1121 for c in bundler.revchunk(self, curr, prev): |
13831
d69c9510d648
changegroup: introduce bundler objects
Matt Mackall <mpm@selenic.com>
parents:
13785
diff
changeset
|
1122 yield c |
46 | 1123 |
13831
d69c9510d648
changegroup: introduce bundler objects
Matt Mackall <mpm@selenic.com>
parents:
13785
diff
changeset
|
1124 yield bundler.close() |
192 | 1125 |
12335
e21fe9c5fb25
bundle: get rid of chunkiter
Matt Mackall <mpm@selenic.com>
parents:
12025
diff
changeset
|
1126 def addgroup(self, bundle, linkmapper, transaction): |
1083 | 1127 """ |
1128 add a delta group | |
46 | 1129 |
1083 | 1130 given a set of deltas, add them to the revision log. the |
1131 first delta is against its parent, which should be in our | |
1132 log, the rest are against the previous delta. | |
1133 """ | |
1134 | |
12624
557988c691d1
revlog.addgroup(): always use _addrevision() to add new revlog entries
Benoit Boissinot <benoit.boissinot@ens-lyon.org>
parents:
12623
diff
changeset
|
1135 # track the base of the current delta log |
2002
4aab906517c6
Calling revlog.addgroup with an empty changegroup now raises RevlogError.
Thomas Arendsen Hein <thomas@intevation.de>
parents:
1981
diff
changeset
|
1136 node = None |
515 | 1137 |
12624
557988c691d1
revlog.addgroup(): always use _addrevision() to add new revlog entries
Benoit Boissinot <benoit.boissinot@ens-lyon.org>
parents:
12623
diff
changeset
|
1138 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
|
1139 end = 0 |
46 | 1140 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
|
1141 end = self.end(r - 1) |
2072 | 1142 ifh = self.opener(self.indexfile, "a+") |
4996
a0d37976cd5b
revlog: avoid some unnecessary seek/tell syscalls
Matt Mackall <mpm@selenic.com>
parents:
4994
diff
changeset
|
1143 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
|
1144 if self._inline: |
4996
a0d37976cd5b
revlog: avoid some unnecessary seek/tell syscalls
Matt Mackall <mpm@selenic.com>
parents:
4994
diff
changeset
|
1145 transaction.add(self.indexfile, end + isize, r) |
2073 | 1146 dfh = None |
1147 else: | |
4996
a0d37976cd5b
revlog: avoid some unnecessary seek/tell syscalls
Matt Mackall <mpm@selenic.com>
parents:
4994
diff
changeset
|
1148 transaction.add(self.indexfile, isize, r) |
2073 | 1149 transaction.add(self.datafile, end) |
1150 dfh = self.opener(self.datafile, "a") | |
46 | 1151 |
6261
7c8101b5ceb1
revlog: make sure the files are closed after an exception happens
Benoit Boissinot <benoit.boissinot@ens-lyon.org>
parents:
6228
diff
changeset
|
1152 try: |
7c8101b5ceb1
revlog: make sure the files are closed after an exception happens
Benoit Boissinot <benoit.boissinot@ens-lyon.org>
parents:
6228
diff
changeset
|
1153 # 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
|
1154 chain = None |
14494
1ffeeb91c55d
check-code: flag 0/1 used as constant Boolean expression
Martin Geisler <mg@lazybytes.net>
parents:
14393
diff
changeset
|
1155 while True: |
14144
3c3c53d8343a
unbundler: separate delta and header parsing
Benoit Boissinot <benoit.boissinot@ens-lyon.org>
parents:
14143
diff
changeset
|
1156 chunkdata = bundle.deltachunk(chain) |
12336
9d234f7d8a77
bundle: move chunk parsing into unbundle class
Matt Mackall <mpm@selenic.com>
parents:
12335
diff
changeset
|
1157 if not chunkdata: |
12335
e21fe9c5fb25
bundle: get rid of chunkiter
Matt Mackall <mpm@selenic.com>
parents:
12025
diff
changeset
|
1158 break |
12336
9d234f7d8a77
bundle: move chunk parsing into unbundle class
Matt Mackall <mpm@selenic.com>
parents:
12335
diff
changeset
|
1159 node = chunkdata['node'] |
9d234f7d8a77
bundle: move chunk parsing into unbundle class
Matt Mackall <mpm@selenic.com>
parents:
12335
diff
changeset
|
1160 p1 = chunkdata['p1'] |
9d234f7d8a77
bundle: move chunk parsing into unbundle class
Matt Mackall <mpm@selenic.com>
parents:
12335
diff
changeset
|
1161 p2 = chunkdata['p2'] |
9d234f7d8a77
bundle: move chunk parsing into unbundle class
Matt Mackall <mpm@selenic.com>
parents:
12335
diff
changeset
|
1162 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
|
1163 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
|
1164 delta = chunkdata['delta'] |
12336
9d234f7d8a77
bundle: move chunk parsing into unbundle class
Matt Mackall <mpm@selenic.com>
parents:
12335
diff
changeset
|
1165 |
6261
7c8101b5ceb1
revlog: make sure the files are closed after an exception happens
Benoit Boissinot <benoit.boissinot@ens-lyon.org>
parents:
6228
diff
changeset
|
1166 link = linkmapper(cs) |
14196
e7483ec3c374
revlog: remove support for punched/shallow
Sune Foldager <cryo@cyanite.org>
parents:
14195
diff
changeset
|
1167 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
|
1168 # 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
|
1169 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
|
1170 continue |
192 | 1171 |
6261
7c8101b5ceb1
revlog: make sure the files are closed after an exception happens
Benoit Boissinot <benoit.boissinot@ens-lyon.org>
parents:
6228
diff
changeset
|
1172 for p in (p1, p2): |
7c8101b5ceb1
revlog: make sure the files are closed after an exception happens
Benoit Boissinot <benoit.boissinot@ens-lyon.org>
parents:
6228
diff
changeset
|
1173 if not p in self.nodemap: |
14196
e7483ec3c374
revlog: remove support for punched/shallow
Sune Foldager <cryo@cyanite.org>
parents:
14195
diff
changeset
|
1174 raise LookupError(p, self.indexfile, |
e7483ec3c374
revlog: remove support for punched/shallow
Sune Foldager <cryo@cyanite.org>
parents:
14195
diff
changeset
|
1175 _('unknown parent')) |
46 | 1176 |
14141
bd1cbfe5db5c
bundler: make parsechunk return the base revision of the delta
Benoit Boissinot <benoit.boissinot@ens-lyon.org>
parents:
14075
diff
changeset
|
1177 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
|
1178 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
|
1179 _('unknown delta base')) |
46 | 1180 |
14141
bd1cbfe5db5c
bundler: make parsechunk return the base revision of the delta
Benoit Boissinot <benoit.boissinot@ens-lyon.org>
parents:
14075
diff
changeset
|
1181 baserev = self.rev(deltabase) |
12624
557988c691d1
revlog.addgroup(): always use _addrevision() to add new revlog entries
Benoit Boissinot <benoit.boissinot@ens-lyon.org>
parents:
12623
diff
changeset
|
1182 chain = self._addrevision(node, None, transaction, link, |
14141
bd1cbfe5db5c
bundler: make parsechunk return the base revision of the delta
Benoit Boissinot <benoit.boissinot@ens-lyon.org>
parents:
14075
diff
changeset
|
1183 p1, p2, (baserev, delta), ifh, dfh) |
12624
557988c691d1
revlog.addgroup(): always use _addrevision() to add new revlog entries
Benoit Boissinot <benoit.boissinot@ens-lyon.org>
parents:
12623
diff
changeset
|
1184 if not dfh and not self._inline: |
557988c691d1
revlog.addgroup(): always use _addrevision() to add new revlog entries
Benoit Boissinot <benoit.boissinot@ens-lyon.org>
parents:
12623
diff
changeset
|
1185 # addrevision switched from inline to conventional |
557988c691d1
revlog.addgroup(): always use _addrevision() to add new revlog entries
Benoit Boissinot <benoit.boissinot@ens-lyon.org>
parents:
12623
diff
changeset
|
1186 # reopen the index |
13400
14f3795a5ed7
explicitly close files
Dan Villiom Podlaski Christiansen <danchr@gmail.com>
parents:
13284
diff
changeset
|
1187 ifh.close() |
12624
557988c691d1
revlog.addgroup(): always use _addrevision() to add new revlog entries
Benoit Boissinot <benoit.boissinot@ens-lyon.org>
parents:
12623
diff
changeset
|
1188 dfh = self.opener(self.datafile, "a") |
557988c691d1
revlog.addgroup(): always use _addrevision() to add new revlog entries
Benoit Boissinot <benoit.boissinot@ens-lyon.org>
parents:
12623
diff
changeset
|
1189 ifh = self.opener(self.indexfile, "a") |
6261
7c8101b5ceb1
revlog: make sure the files are closed after an exception happens
Benoit Boissinot <benoit.boissinot@ens-lyon.org>
parents:
6228
diff
changeset
|
1190 finally: |
7c8101b5ceb1
revlog: make sure the files are closed after an exception happens
Benoit Boissinot <benoit.boissinot@ens-lyon.org>
parents:
6228
diff
changeset
|
1191 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
|
1192 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
|
1193 ifh.close() |
46 | 1194 |
1195 return node | |
1493
1a216cb4ee64
verify: add check for mismatch of index and data length
Matt Mackall <mpm@selenic.com>
parents:
1469
diff
changeset
|
1196 |
8073
e8a28556a0a8
strip: make repair.strip transactional to avoid repository corruption
Henrik Stuart <henrik.stuart@edlund.dk>
parents:
8017
diff
changeset
|
1197 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
|
1198 """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
|
1199 |
b9a830fa10f6
simplify revlog.strip interface and callers; add docstring
Alexis S. L. Carvalho <alexis@cecm.usp.br>
parents:
5909
diff
changeset
|
1200 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
|
1201 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
|
1202 |
b9a830fa10f6
simplify revlog.strip interface and callers; add docstring
Alexis S. L. Carvalho <alexis@cecm.usp.br>
parents:
5909
diff
changeset
|
1203 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
|
1204 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
|
1205 strip. |
b9a830fa10f6
simplify revlog.strip interface and callers; add docstring
Alexis S. L. Carvalho <alexis@cecm.usp.br>
parents:
5909
diff
changeset
|
1206 |
b9a830fa10f6
simplify revlog.strip interface and callers; add docstring
Alexis S. L. Carvalho <alexis@cecm.usp.br>
parents:
5909
diff
changeset
|
1207 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
|
1208 trust that the caller has saved the revisions that shouldn't be |
b9a830fa10f6
simplify revlog.strip interface and callers; add docstring
Alexis S. L. Carvalho <alexis@cecm.usp.br>
parents:
5909
diff
changeset
|
1209 removed and that it'll readd them after this truncation. |
b9a830fa10f6
simplify revlog.strip interface and callers; add docstring
Alexis S. L. Carvalho <alexis@cecm.usp.br>
parents:
5909
diff
changeset
|
1210 """ |
6750
fb42030d79d6
add __len__ and __iter__ methods to repo and revlog
Matt Mackall <mpm@selenic.com>
parents:
6703
diff
changeset
|
1211 if len(self) == 0: |
1535
7ae0ce7a3dc4
Add revlog.strip to truncate away revisions.
mason@suse.com
parents:
1533
diff
changeset
|
1212 return |
7ae0ce7a3dc4
Add revlog.strip to truncate away revisions.
mason@suse.com
parents:
1533
diff
changeset
|
1213 |
6750
fb42030d79d6
add __len__ and __iter__ methods to repo and revlog
Matt Mackall <mpm@selenic.com>
parents:
6703
diff
changeset
|
1214 for rev in 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
|
1215 if self.index[rev][4] >= minlink: |
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
|
1216 break |
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
|
1217 else: |
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
|
1218 return |
1535
7ae0ce7a3dc4
Add revlog.strip to truncate away revisions.
mason@suse.com
parents:
1533
diff
changeset
|
1219 |
7ae0ce7a3dc4
Add revlog.strip to truncate away revisions.
mason@suse.com
parents:
1533
diff
changeset
|
1220 # first truncate the files on disk |
7ae0ce7a3dc4
Add revlog.strip to truncate away revisions.
mason@suse.com
parents:
1533
diff
changeset
|
1221 end = self.start(rev) |
4982
9672e3c42b0c
revlog: change _inline from a function to a variable
Matt Mackall <mpm@selenic.com>
parents:
4981
diff
changeset
|
1222 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
|
1223 transaction.add(self.datafile, end) |
4977
6cb30bc4ca32
revlog: parse revlogv0 indexes into v1 internally
Matt Mackall <mpm@selenic.com>
parents:
4976
diff
changeset
|
1224 end = rev * self._io.size |
2073 | 1225 else: |
4977
6cb30bc4ca32
revlog: parse revlogv0 indexes into v1 internally
Matt Mackall <mpm@selenic.com>
parents:
4976
diff
changeset
|
1226 end += rev * self._io.size |
2072 | 1227 |
8073
e8a28556a0a8
strip: make repair.strip transactional to avoid repository corruption
Henrik Stuart <henrik.stuart@edlund.dk>
parents:
8017
diff
changeset
|
1228 transaction.add(self.indexfile, end) |
1535
7ae0ce7a3dc4
Add revlog.strip to truncate away revisions.
mason@suse.com
parents:
1533
diff
changeset
|
1229 |
7ae0ce7a3dc4
Add revlog.strip to truncate away revisions.
mason@suse.com
parents:
1533
diff
changeset
|
1230 # then reset internal state in memory to forget those revisions |
4984 | 1231 self._cache = None |
8650
ef393d6ec030
revlog: refactor chunk cache interface again
Matt Mackall <mpm@selenic.com>
parents:
8643
diff
changeset
|
1232 self._chunkclear() |
6750
fb42030d79d6
add __len__ and __iter__ methods to repo and revlog
Matt Mackall <mpm@selenic.com>
parents:
6703
diff
changeset
|
1233 for x in xrange(rev, len(self)): |
2072 | 1234 del self.nodemap[self.node(x)] |
1535
7ae0ce7a3dc4
Add revlog.strip to truncate away revisions.
mason@suse.com
parents:
1533
diff
changeset
|
1235 |
4979
06abdaf78788
revlog: add a magic null revision to our index
Matt Mackall <mpm@selenic.com>
parents:
4978
diff
changeset
|
1236 del self.index[rev:-1] |
1535
7ae0ce7a3dc4
Add revlog.strip to truncate away revisions.
mason@suse.com
parents:
1533
diff
changeset
|
1237 |
1493
1a216cb4ee64
verify: add check for mismatch of index and data length
Matt Mackall <mpm@selenic.com>
parents:
1469
diff
changeset
|
1238 def checksize(self): |
1a216cb4ee64
verify: add check for mismatch of index and data length
Matt Mackall <mpm@selenic.com>
parents:
1469
diff
changeset
|
1239 expected = 0 |
6750
fb42030d79d6
add __len__ and __iter__ methods to repo and revlog
Matt Mackall <mpm@selenic.com>
parents:
6703
diff
changeset
|
1240 if len(self): |
fb42030d79d6
add __len__ and __iter__ methods to repo and revlog
Matt Mackall <mpm@selenic.com>
parents:
6703
diff
changeset
|
1241 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
|
1242 |
1494
249ca10d37f4
Handle empty logs in repo.checksize
Matt Mackall <mpm@selenic.com>
parents:
1493
diff
changeset
|
1243 try: |
249ca10d37f4
Handle empty logs in repo.checksize
Matt Mackall <mpm@selenic.com>
parents:
1493
diff
changeset
|
1244 f = self.opener(self.datafile) |
249ca10d37f4
Handle empty logs in repo.checksize
Matt Mackall <mpm@selenic.com>
parents:
1493
diff
changeset
|
1245 f.seek(0, 2) |
249ca10d37f4
Handle empty logs in repo.checksize
Matt Mackall <mpm@selenic.com>
parents:
1493
diff
changeset
|
1246 actual = f.tell() |
13400
14f3795a5ed7
explicitly close files
Dan Villiom Podlaski Christiansen <danchr@gmail.com>
parents:
13284
diff
changeset
|
1247 f.close() |
1667
daff3ef0de8d
verify: notice extra data in indices
Matt Mackall <mpm@selenic.com>
parents:
1660
diff
changeset
|
1248 dd = actual - expected |
1494
249ca10d37f4
Handle empty logs in repo.checksize
Matt Mackall <mpm@selenic.com>
parents:
1493
diff
changeset
|
1249 except IOError, inst: |
1667
daff3ef0de8d
verify: notice extra data in indices
Matt Mackall <mpm@selenic.com>
parents:
1660
diff
changeset
|
1250 if inst.errno != errno.ENOENT: |
daff3ef0de8d
verify: notice extra data in indices
Matt Mackall <mpm@selenic.com>
parents:
1660
diff
changeset
|
1251 raise |
daff3ef0de8d
verify: notice extra data in indices
Matt Mackall <mpm@selenic.com>
parents:
1660
diff
changeset
|
1252 dd = 0 |
daff3ef0de8d
verify: notice extra data in indices
Matt Mackall <mpm@selenic.com>
parents:
1660
diff
changeset
|
1253 |
daff3ef0de8d
verify: notice extra data in indices
Matt Mackall <mpm@selenic.com>
parents:
1660
diff
changeset
|
1254 try: |
daff3ef0de8d
verify: notice extra data in indices
Matt Mackall <mpm@selenic.com>
parents:
1660
diff
changeset
|
1255 f = self.opener(self.indexfile) |
daff3ef0de8d
verify: notice extra data in indices
Matt Mackall <mpm@selenic.com>
parents:
1660
diff
changeset
|
1256 f.seek(0, 2) |
daff3ef0de8d
verify: notice extra data in indices
Matt Mackall <mpm@selenic.com>
parents:
1660
diff
changeset
|
1257 actual = f.tell() |
13400
14f3795a5ed7
explicitly close files
Dan Villiom Podlaski Christiansen <danchr@gmail.com>
parents:
13284
diff
changeset
|
1258 f.close() |
4977
6cb30bc4ca32
revlog: parse revlogv0 indexes into v1 internally
Matt Mackall <mpm@selenic.com>
parents:
4976
diff
changeset
|
1259 s = self._io.size |
9029
0001e49f1c11
compat: use // for integer division
Alejandro Santos <alejolp@alejolp.com>
parents:
8658
diff
changeset
|
1260 i = max(0, actual // s) |
1667
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Matt Mackall <mpm@selenic.com>
parents:
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changeset
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1261 di = actual - (i * s) |
4982
9672e3c42b0c
revlog: change _inline from a function to a variable
Matt Mackall <mpm@selenic.com>
parents:
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1262 if self._inline: |
2073 | 1263 databytes = 0 |
6750
fb42030d79d6
add __len__ and __iter__ methods to repo and revlog
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parents:
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changeset
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1264 for r in self: |
5312
fb070713ff36
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parents:
5007
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1265 databytes += max(0, self.length(r)) |
2073 | 1266 dd = 0 |
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add __len__ and __iter__ methods to repo and revlog
Matt Mackall <mpm@selenic.com>
parents:
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diff
changeset
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1267 di = actual - len(self) * s - databytes |
1667
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parents:
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1268 except IOError, inst: |
daff3ef0de8d
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parents:
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1269 if inst.errno != errno.ENOENT: |
daff3ef0de8d
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parents:
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1270 raise |
daff3ef0de8d
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parents:
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1271 di = 0 |
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parents:
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1272 |
daff3ef0de8d
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parents:
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1273 return (dd, di) |
6891
22cb82433842
revlog: add files method
Adrian Buehlmann <adrian@cadifra.com>
parents:
6872
diff
changeset
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1274 |
22cb82433842
revlog: add files method
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parents:
6872
diff
changeset
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1275 def files(self): |
10282
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many, many trivial check-code fixups
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diff
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1276 res = [self.indexfile] |
6891
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Adrian Buehlmann <adrian@cadifra.com>
parents:
6872
diff
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1277 if not self._inline: |
22cb82433842
revlog: add files method
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parents:
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1278 res.append(self.datafile) |
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parents:
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1279 return res |