Mercurial > hg
annotate mercurial/revlog.py @ 11445:4061205ad9e1 stable
contrib: update tcsh_completion with commands for 1.6
Added the following commands: debugbuilddag debugdag debugpushkey
debugrevspec.
author | Gilles Moris <gilles.moris@free.fr> |
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date | Sat, 26 Jun 2010 15:56:48 +0200 |
parents | d65b74106113 |
children | f5a8d85df06a a463e3c50212 |
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, short #@UnusedImport |
3891 | 16 from i18n import _ |
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17 import changegroup, ancestor, mdiff, parsers, error, util |
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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 flags |
2072 | 27 REVLOGV0 = 0 |
28 REVLOGNG = 1 | |
2073 | 29 REVLOGNGINLINEDATA = (1 << 16) |
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30 REVLOG_DEFAULT_FLAGS = REVLOGNGINLINEDATA |
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31 REVLOG_DEFAULT_FORMAT = REVLOGNG |
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32 REVLOG_DEFAULT_VERSION = REVLOG_DEFAULT_FORMAT | REVLOG_DEFAULT_FLAGS |
2073 | 33 |
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34 # amount of data read unconditionally, should be >= 4 |
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35 # when not inline: threshold for using lazy index |
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36 _prereadsize = 1048576 |
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37 # max size of revlog with inline data |
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38 _maxinline = 131072 |
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39 |
7633 | 40 RevlogError = error.RevlogError |
41 LookupError = error.LookupError | |
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42 |
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43 def getoffset(q): |
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44 return int(q >> 16) |
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45 |
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46 def gettype(q): |
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47 return int(q & 0xFFFF) |
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48 |
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49 def offset_type(offset, type): |
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50 return long(long(offset) << 16 | type) |
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51 |
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52 nullhash = _sha(nullid) |
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53 |
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54 def hash(text, p1, p2): |
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55 """generate a hash from the given text and its parent hashes |
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56 |
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57 This hash combines both the current file contents and its history |
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58 in a manner that makes it easy to distinguish nodes with the same |
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59 content in the revision graph. |
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60 """ |
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61 # As of now, if one of the parent node is null, p2 is null |
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62 if p2 == nullid: |
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63 # deep copy of a hash is faster than creating one |
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64 s = nullhash.copy() |
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65 s.update(p1) |
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66 else: |
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67 # none of the parent nodes are nullid |
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68 l = [p1, p2] |
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69 l.sort() |
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70 s = _sha(l[0]) |
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71 s.update(l[1]) |
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72 s.update(text) |
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73 return s.digest() |
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74 |
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75 def compress(text): |
1083 | 76 """ generate a possibly-compressed representation of text """ |
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77 if not text: |
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78 return ("", text) |
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79 l = len(text) |
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80 bin = None |
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81 if l < 44: |
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82 pass |
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83 elif l > 1000000: |
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84 # zlib makes an internal copy, thus doubling memory usage for |
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85 # large files, so lets do this in pieces |
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86 z = zlib.compressobj() |
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87 p = [] |
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88 pos = 0 |
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89 while pos < l: |
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90 pos2 = pos + 2**20 |
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91 p.append(z.compress(text[pos:pos2])) |
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92 pos = pos2 |
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93 p.append(z.flush()) |
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94 if sum(map(len, p)) < l: |
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95 bin = "".join(p) |
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96 else: |
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97 bin = _compress(text) |
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98 if bin is None or len(bin) > l: |
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99 if text[0] == '\0': |
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100 return ("", text) |
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101 return ('u', text) |
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102 return ("", bin) |
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103 |
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104 def decompress(bin): |
1083 | 105 """ decompress the given input """ |
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106 if not bin: |
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107 return bin |
112 | 108 t = bin[0] |
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109 if t == '\0': |
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110 return bin |
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111 if t == 'x': |
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112 return _decompress(bin) |
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113 if t == 'u': |
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114 return bin[1:] |
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115 raise RevlogError(_("unknown compression type %r") % t) |
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116 |
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117 class lazyparser(object): |
1083 | 118 """ |
119 this class avoids the need to parse the entirety of large indices | |
120 """ | |
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121 |
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122 # lazyparser is not safe to use on windows if win32 extensions not |
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123 # available. it keeps file handle open, which make it not possible |
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124 # to break hardlinks on local cloned repos. |
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125 |
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126 def __init__(self, dataf): |
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127 try: |
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128 size = util.fstat(dataf).st_size |
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129 except AttributeError: |
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130 size = 0 |
2079 | 131 self.dataf = dataf |
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132 self.s = struct.calcsize(indexformatng) |
2079 | 133 self.datasize = size |
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134 self.l = size / self.s |
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135 self.index = [None] * self.l |
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136 self.map = {nullid: nullrev} |
2079 | 137 self.allmap = 0 |
323 | 138 self.all = 0 |
2079 | 139 self.mapfind_count = 0 |
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140 |
2079 | 141 def loadmap(self): |
142 """ | |
143 during a commit, we need to make sure the rev being added is | |
144 not a duplicate. This requires loading the entire index, | |
145 which is fairly slow. loadmap can load up just the node map, | |
146 which takes much less time. | |
147 """ | |
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148 if self.allmap: |
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149 return |
2079 | 150 end = self.datasize |
151 self.allmap = 1 | |
152 cur = 0 | |
153 count = 0 | |
154 blocksize = self.s * 256 | |
155 self.dataf.seek(0) | |
156 while cur < end: | |
157 data = self.dataf.read(blocksize) | |
158 off = 0 | |
159 for x in xrange(256): | |
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160 n = data[off + ngshaoffset:off + ngshaoffset + 20] |
2079 | 161 self.map[n] = count |
162 count += 1 | |
163 if count >= self.l: | |
164 break | |
165 off += self.s | |
166 cur += blocksize | |
167 | |
168 def loadblock(self, blockstart, blocksize, data=None): | |
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169 if self.all: |
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170 return |
2079 | 171 if data is None: |
172 self.dataf.seek(blockstart) | |
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173 if blockstart + blocksize > self.datasize: |
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174 # the revlog may have grown since we've started running, |
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175 # but we don't have space in self.index for more entries. |
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176 # limit blocksize so that we don't get too much data. |
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177 blocksize = max(self.datasize - blockstart, 0) |
2079 | 178 data = self.dataf.read(blocksize) |
179 lend = len(data) / self.s | |
180 i = blockstart / self.s | |
181 off = 0 | |
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182 # lazyindex supports __delitem__ |
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183 if lend > len(self.index) - i: |
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184 lend = len(self.index) - i |
2079 | 185 for x in xrange(lend): |
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186 if self.index[i + x] is None: |
2079 | 187 b = data[off : off + self.s] |
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188 self.index[i + x] = b |
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189 n = b[ngshaoffset:ngshaoffset + 20] |
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190 self.map[n] = i + x |
2079 | 191 off += self.s |
192 | |
193 def findnode(self, node): | |
194 """search backwards through the index file for a specific node""" | |
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195 if self.allmap: |
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196 return None |
2079 | 197 |
198 # hg log will cause many many searches for the manifest | |
199 # nodes. After we get called a few times, just load the whole | |
200 # thing. | |
201 if self.mapfind_count > 8: | |
202 self.loadmap() | |
203 if node in self.map: | |
204 return node | |
205 return None | |
206 self.mapfind_count += 1 | |
207 last = self.l - 1 | |
208 while self.index[last] != None: | |
209 if last == 0: | |
210 self.all = 1 | |
211 self.allmap = 1 | |
212 return None | |
213 last -= 1 | |
214 end = (last + 1) * self.s | |
215 blocksize = self.s * 256 | |
216 while end >= 0: | |
217 start = max(end - blocksize, 0) | |
218 self.dataf.seek(start) | |
219 data = self.dataf.read(end - start) | |
220 findend = end - start | |
221 while True: | |
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222 # we're searching backwards, so we have to make sure |
2079 | 223 # we don't find a changeset where this node is a parent |
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224 off = data.find(node, 0, findend) |
2079 | 225 findend = off |
226 if off >= 0: | |
227 i = off / self.s | |
228 off = i * self.s | |
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229 n = data[off + ngshaoffset:off + ngshaoffset + 20] |
2079 | 230 if n == node: |
231 self.map[n] = i + start / self.s | |
232 return node | |
233 else: | |
234 break | |
235 end -= blocksize | |
236 return None | |
237 | |
238 def loadindex(self, i=None, end=None): | |
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239 if self.all: |
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240 return |
2079 | 241 all = False |
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242 if i is None: |
2079 | 243 blockstart = 0 |
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244 blocksize = (65536 / self.s) * self.s |
2079 | 245 end = self.datasize |
246 all = True | |
323 | 247 else: |
2079 | 248 if end: |
249 blockstart = i * self.s | |
250 end = end * self.s | |
251 blocksize = end - blockstart | |
252 else: | |
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253 blockstart = (i & ~1023) * self.s |
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254 blocksize = self.s * 1024 |
2079 | 255 end = blockstart + blocksize |
256 while blockstart < end: | |
257 self.loadblock(blockstart, blocksize) | |
258 blockstart += blocksize | |
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259 if all: |
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260 self.all = True |
515 | 261 |
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262 class lazyindex(object): |
1083 | 263 """a lazy version of the index array""" |
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264 def __init__(self, parser): |
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265 self.p = parser |
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266 def __len__(self): |
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267 return len(self.p.index) |
115 | 268 def load(self, pos): |
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269 if pos < 0: |
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270 pos += len(self.p.index) |
2079 | 271 self.p.loadindex(pos) |
115 | 272 return self.p.index[pos] |
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273 def __getitem__(self, pos): |
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274 return _unpack(indexformatng, self.p.index[pos] or self.load(pos)) |
2072 | 275 def __setitem__(self, pos, item): |
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276 self.p.index[pos] = _pack(indexformatng, *item) |
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277 def __delitem__(self, pos): |
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278 del self.p.index[pos] |
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279 def insert(self, pos, e): |
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280 self.p.index.insert(pos, _pack(indexformatng, *e)) |
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281 def append(self, e): |
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282 self.p.index.append(_pack(indexformatng, *e)) |
515 | 283 |
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284 class lazymap(object): |
1083 | 285 """a lazy version of the node map""" |
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286 def __init__(self, parser): |
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287 self.p = parser |
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288 def load(self, key): |
2079 | 289 n = self.p.findnode(key) |
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290 if n is None: |
1214 | 291 raise KeyError(key) |
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292 def __contains__(self, key): |
2079 | 293 if key in self.p.map: |
294 return True | |
295 self.p.loadmap() | |
323 | 296 return key in self.p.map |
97 | 297 def __iter__(self): |
469 | 298 yield nullid |
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299 for i, ret in enumerate(self.p.index): |
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300 if not ret: |
2079 | 301 self.p.loadindex(i) |
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302 ret = self.p.index[i] |
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303 if isinstance(ret, str): |
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304 ret = _unpack(indexformatng, ret) |
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305 yield ret[7] |
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306 def __getitem__(self, key): |
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307 try: |
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308 return self.p.map[key] |
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309 except KeyError: |
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310 try: |
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311 self.load(key) |
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312 return self.p.map[key] |
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313 except KeyError: |
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314 raise KeyError("node " + hex(key)) |
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315 def __setitem__(self, key, val): |
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316 self.p.map[key] = val |
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317 def __delitem__(self, key): |
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318 del self.p.map[key] |
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319 |
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320 indexformatv0 = ">4l20s20s20s" |
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321 v0shaoffset = 56 |
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322 |
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323 class revlogoldio(object): |
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324 def __init__(self): |
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325 self.size = struct.calcsize(indexformatv0) |
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326 |
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327 def parseindex(self, fp, data, inline): |
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328 s = self.size |
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329 index = [] |
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330 nodemap = {nullid: nullrev} |
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331 n = off = 0 |
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332 if len(data) == _prereadsize: |
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333 data += fp.read() # read the rest |
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334 l = len(data) |
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335 while off + s <= l: |
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336 cur = data[off:off + s] |
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337 off += s |
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338 e = _unpack(indexformatv0, cur) |
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339 # transform to revlogv1 format |
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340 e2 = (offset_type(e[0], 0), e[1], -1, e[2], e[3], |
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341 nodemap.get(e[4], nullrev), nodemap.get(e[5], nullrev), e[6]) |
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342 index.append(e2) |
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343 nodemap[e[6]] = n |
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344 n += 1 |
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345 |
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346 return index, nodemap, None |
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347 |
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348 def packentry(self, entry, node, version, rev): |
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349 if gettype(entry[0]): |
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350 raise RevlogError(_("index entry flags need RevlogNG")) |
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351 e2 = (getoffset(entry[0]), entry[1], entry[3], entry[4], |
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352 node(entry[5]), node(entry[6]), entry[7]) |
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353 return _pack(indexformatv0, *e2) |
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354 |
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355 # index ng: |
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356 # 6 bytes: offset |
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357 # 2 bytes: flags |
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358 # 4 bytes: compressed length |
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359 # 4 bytes: uncompressed length |
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360 # 4 bytes: base rev |
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361 # 4 bytes: link rev |
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362 # 4 bytes: parent 1 rev |
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363 # 4 bytes: parent 2 rev |
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364 # 32 bytes: nodeid |
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365 indexformatng = ">Qiiiiii20s12x" |
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366 ngshaoffset = 32 |
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367 versionformat = ">I" |
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368 |
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369 class revlogio(object): |
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370 def __init__(self): |
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371 self.size = struct.calcsize(indexformatng) |
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372 |
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373 def parseindex(self, fp, data, inline): |
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374 if len(data) == _prereadsize: |
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375 if util.openhardlinks() and not inline: |
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376 # big index, let's parse it on demand |
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377 parser = lazyparser(fp) |
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378 index = lazyindex(parser) |
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379 nodemap = lazymap(parser) |
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380 e = list(index[0]) |
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381 type = gettype(e[0]) |
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382 e[0] = offset_type(0, type) |
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383 index[0] = e |
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384 return index, nodemap, None |
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385 else: |
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386 data += fp.read() |
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387 |
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388 # call the C implementation to parse the index data |
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389 index, nodemap, cache = parsers.parse_index(data, inline) |
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390 return index, nodemap, cache |
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391 |
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392 def packentry(self, entry, node, version, rev): |
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393 p = _pack(indexformatng, *entry) |
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394 if rev == 0: |
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395 p = _pack(versionformat, version) + p[4:] |
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396 return p |
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397 |
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398 class revlog(object): |
1083 | 399 """ |
400 the underlying revision storage object | |
401 | |
402 A revlog consists of two parts, an index and the revision data. | |
403 | |
404 The index is a file with a fixed record size containing | |
6912 | 405 information on each revision, including its nodeid (hash), the |
1083 | 406 nodeids of its parents, the position and offset of its data within |
407 the data file, and the revision it's based on. Finally, each entry | |
408 contains a linkrev entry that can serve as a pointer to external | |
409 data. | |
410 | |
411 The revision data itself is a linear collection of data chunks. | |
412 Each chunk represents a revision and is usually represented as a | |
413 delta against the previous chunk. To bound lookup time, runs of | |
414 deltas are limited to about 2 times the length of the original | |
415 version data. This makes retrieval of a version proportional to | |
416 its size, or O(1) relative to the number of revisions. | |
417 | |
418 Both pieces of the revlog are written to in an append-only | |
419 fashion, which means we never need to rewrite a file to insert or | |
420 remove data, and can use some simple techniques to avoid the need | |
421 for locking while reading. | |
422 """ | |
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423 def __init__(self, opener, indexfile): |
1083 | 424 """ |
425 create a revlog object | |
426 | |
427 opener is a function that abstracts the file opening operation | |
428 and can be used to implement COW semantics or the like. | |
429 """ | |
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430 self.indexfile = indexfile |
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431 self.datafile = indexfile[:-2] + ".d" |
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432 self.opener = opener |
4984 | 433 self._cache = None |
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434 self._chunkcache = (0, '') |
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435 self.nodemap = {nullid: nullrev} |
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436 self.index = [] |
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437 |
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438 v = REVLOG_DEFAULT_VERSION |
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439 if hasattr(opener, 'options') and 'defversion' in opener.options: |
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440 v = opener.options['defversion'] |
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441 if v & REVLOGNG: |
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442 v |= REVLOGNGINLINEDATA |
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443 |
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444 i = '' |
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445 try: |
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446 f = self.opener(self.indexfile) |
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447 if "nonlazy" in getattr(self.opener, 'options', {}): |
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448 i = f.read() |
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449 else: |
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450 i = f.read(_prereadsize) |
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451 if len(i) > 0: |
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452 v = struct.unpack(versionformat, i[:4])[0] |
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453 except IOError, inst: |
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454 if inst.errno != errno.ENOENT: |
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455 raise |
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456 |
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457 self.version = v |
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458 self._inline = v & REVLOGNGINLINEDATA |
2073 | 459 flags = v & ~0xFFFF |
460 fmt = v & 0xFFFF | |
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461 if fmt == REVLOGV0 and flags: |
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462 raise RevlogError(_("index %s unknown flags %#04x for format v0") |
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463 % (self.indexfile, flags >> 16)) |
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464 elif fmt == REVLOGNG and flags & ~REVLOGNGINLINEDATA: |
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465 raise RevlogError(_("index %s unknown flags %#04x for revlogng") |
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466 % (self.indexfile, flags >> 16)) |
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467 elif fmt > REVLOGNG: |
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468 raise RevlogError(_("index %s unknown format %d") |
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469 % (self.indexfile, fmt)) |
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470 |
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471 self._io = revlogio() |
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472 if self.version == REVLOGV0: |
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473 self._io = revlogoldio() |
2072 | 474 if i: |
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475 try: |
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476 d = self._io.parseindex(f, i, self._inline) |
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477 except (ValueError, IndexError): |
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478 raise RevlogError(_("index %s is corrupted") % (self.indexfile)) |
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479 self.index, self.nodemap, self._chunkcache = d |
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480 if not self._chunkcache: |
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481 self._chunkclear() |
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482 |
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483 # add the magic null revision at -1 (if it hasn't been done already) |
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484 if (self.index == [] or isinstance(self.index, lazyindex) or |
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485 self.index[-1][7] != nullid) : |
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486 self.index.append((0, 0, 0, -1, -1, -1, -1, nullid)) |
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487 |
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|
488 def _loadindex(self, start, end): |
2079 | 489 """load a block of indexes all at once from the lazy parser""" |
490 if isinstance(self.index, lazyindex): | |
491 self.index.p.loadindex(start, end) | |
492 | |
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493 def _loadindexmap(self): |
2072 | 494 """loads both the map and the index from the lazy parser""" |
495 if isinstance(self.index, lazyindex): | |
496 p = self.index.p | |
2079 | 497 p.loadindex() |
498 self.nodemap = p.map | |
499 | |
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|
500 def _loadmap(self): |
2079 | 501 """loads the map from the lazy parser""" |
502 if isinstance(self.nodemap, lazymap): | |
503 self.nodemap.p.loadmap() | |
504 self.nodemap = self.nodemap.p.map | |
0
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|
505 |
4980
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506 def tip(self): |
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|
507 return self.node(len(self.index) - 2) |
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508 def __len__(self): |
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509 return len(self.index) - 1 |
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510 def __iter__(self): |
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511 for i in xrange(len(self)): |
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512 yield i |
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513 def rev(self, node): |
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|
514 try: |
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|
515 return self.nodemap[node] |
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516 except KeyError: |
6228
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|
517 raise LookupError(node, self.indexfile, _('no node')) |
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518 def node(self, rev): |
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519 return self.index[rev][7] |
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520 def linkrev(self, rev): |
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|
521 return self.index[rev][4] |
2 | 522 def parents(self, node): |
7363 | 523 i = self.index |
524 d = i[self.rev(node)] | |
525 return i[d[5]][7], i[d[6]][7] # map revisions to nodes inline | |
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526 def parentrevs(self, rev): |
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527 return self.index[rev][5:7] |
2072 | 528 def start(self, rev): |
5006
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529 return int(self.index[rev][0] >> 16) |
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530 def end(self, rev): |
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531 return self.start(rev) + self.length(rev) |
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532 def length(self, rev): |
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533 return self.index[rev][1] |
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534 def base(self, rev): |
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535 return self.index[rev][3] |
0
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536 |
2078
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537 def size(self, rev): |
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538 """return the length of the uncompressed text for a given revision""" |
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539 l = self.index[rev][2] |
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540 if l >= 0: |
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541 return l |
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542 |
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543 t = self.revision(self.node(rev)) |
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|
544 return len(t) |
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545 |
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|
546 def reachable(self, node, stop=None): |
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547 """return the set of all nodes ancestral to a given node, including |
3683 | 548 the node itself, stopping when stop is matched""" |
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549 reachable = set((node,)) |
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550 visit = [node] |
1074
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551 if stop: |
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552 stopn = self.rev(stop) |
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553 else: |
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554 stopn = 0 |
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555 while visit: |
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556 n = visit.pop(0) |
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557 if n == stop: |
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558 continue |
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559 if n == nullid: |
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560 continue |
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561 for p in self.parents(n): |
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562 if self.rev(p) < stopn: |
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563 continue |
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564 if p not in reachable: |
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565 reachable.add(p) |
1074
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566 visit.append(p) |
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567 return reachable |
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568 |
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|
569 def ancestors(self, *revs): |
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diff
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|
570 """Generate the ancestors of 'revs' in reverse topological order. |
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|
571 |
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572 Yield a sequence of revision numbers starting with the parents |
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|
573 of each revision in revs, i.e., each revision is *not* considered |
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|
574 an ancestor of itself. Results are in breadth-first order: |
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diff
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|
575 parents of each rev in revs, then parents of those, etc. Result |
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576 does not include the null revision.""" |
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577 visit = list(revs) |
8150
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578 seen = set([nullrev]) |
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579 while visit: |
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580 for parent in self.parentrevs(visit.pop(0)): |
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581 if parent not in seen: |
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582 visit.append(parent) |
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583 seen.add(parent) |
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584 yield parent |
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585 |
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|
586 def descendants(self, *revs): |
10047
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diff
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|
587 """Generate the descendants of 'revs' in revision order. |
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588 |
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diff
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|
589 Yield a sequence of revision numbers starting with a child of |
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diff
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|
590 some rev in revs, i.e., each revision is *not* considered a |
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diff
changeset
|
591 descendant of itself. Results are ordered by revision number (a |
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diff
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|
592 topological sort).""" |
8150
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593 seen = set(revs) |
6872
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|
594 for i in xrange(min(revs) + 1, len(self)): |
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|
595 for x in self.parentrevs(i): |
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|
596 if x != nullrev and x in seen: |
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597 seen.add(i) |
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|
598 yield i |
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599 break |
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diff
changeset
|
600 |
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7109
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|
601 def findmissing(self, common=None, heads=None): |
10047
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diff
changeset
|
602 """Return the ancestors of heads that are not ancestors of common. |
27267b1f68b4
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diff
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603 |
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parents:
9679
diff
changeset
|
604 More specifically, return a list of nodes N such that every N |
27267b1f68b4
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parents:
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diff
changeset
|
605 satisfies the following constraints: |
7233
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7109
diff
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|
606 |
10047
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diff
changeset
|
607 1. N is an ancestor of some node in 'heads' |
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diff
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|
608 2. N is not an ancestor of any node in 'common' |
7233
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|
609 |
10047
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diff
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610 The list is sorted by revision number, meaning it is |
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diff
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611 topologically sorted. |
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parents:
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612 |
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diff
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613 'heads' and 'common' are both lists of node IDs. If heads is |
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diff
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|
614 not supplied, uses all of the revlog's heads. If common is not |
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diff
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|
615 supplied, uses nullid.""" |
7233
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616 if common is None: |
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617 common = [nullid] |
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618 if heads is None: |
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619 heads = self.heads() |
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620 |
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|
621 common = [self.rev(n) for n in common] |
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|
622 heads = [self.rev(n) for n in heads] |
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623 |
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624 # we want the ancestors, but inclusive |
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625 has = set(self.ancestors(*common)) |
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626 has.add(nullrev) |
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627 has.update(common) |
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628 |
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629 # take all ancestors from heads that aren't in has |
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630 missing = set() |
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631 visit = [r for r in heads if r not in has] |
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632 while visit: |
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633 r = visit.pop(0) |
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634 if r in missing: |
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635 continue |
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636 else: |
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637 missing.add(r) |
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638 for p in self.parentrevs(r): |
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639 if p not in has: |
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640 visit.append(p) |
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641 missing = list(missing) |
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642 missing.sort() |
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643 return [self.node(r) for r in missing] |
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644 |
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645 def nodesbetween(self, roots=None, heads=None): |
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646 """Return a topological path from 'roots' to 'heads'. |
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647 |
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648 Return a tuple (nodes, outroots, outheads) where 'nodes' is a |
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649 topologically sorted list of all nodes N that satisfy both of |
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650 these constraints: |
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651 |
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652 1. N is a descendant of some node in 'roots' |
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653 2. N is an ancestor of some node in 'heads' |
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654 |
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655 Every node is considered to be both a descendant and an ancestor |
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656 of itself, so every reachable node in 'roots' and 'heads' will be |
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657 included in 'nodes'. |
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658 |
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659 'outroots' is the list of reachable nodes in 'roots', i.e., the |
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660 subset of 'roots' that is returned in 'nodes'. Likewise, |
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661 'outheads' is the subset of 'heads' that is also in 'nodes'. |
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662 |
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663 'roots' and 'heads' are both lists of node IDs. If 'roots' is |
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664 unspecified, uses nullid as the only root. If 'heads' is |
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665 unspecified, uses list of all of the revlog's heads.""" |
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666 nonodes = ([], [], []) |
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667 if roots is not None: |
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668 roots = list(roots) |
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669 if not roots: |
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670 return nonodes |
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671 lowestrev = min([self.rev(n) for n in roots]) |
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672 else: |
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673 roots = [nullid] # Everybody's a descendent of nullid |
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674 lowestrev = nullrev |
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675 if (lowestrev == nullrev) and (heads is None): |
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676 # We want _all_ the nodes! |
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677 return ([self.node(r) for r in self], [nullid], list(self.heads())) |
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678 if heads is None: |
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679 # All nodes are ancestors, so the latest ancestor is the last |
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680 # node. |
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681 highestrev = len(self) - 1 |
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682 # Set ancestors to None to signal that every node is an ancestor. |
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683 ancestors = None |
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684 # 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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685 heads = {} |
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686 else: |
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687 heads = list(heads) |
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688 if not heads: |
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689 return nonodes |
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690 ancestors = set() |
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691 # Turn heads into a dictionary so we can remove 'fake' heads. |
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692 # Also, later we will be using it to filter out the heads we can't |
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693 # find from roots. |
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694 heads = dict.fromkeys(heads, 0) |
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diff
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|
695 # Start at the top and keep marking parents until we're done. |
8163
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parents:
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696 nodestotag = set(heads) |
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697 # Remember where the top was so we can use it as a limit later. |
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|
698 highestrev = max([self.rev(n) for n in nodestotag]) |
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|
699 while nodestotag: |
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|
700 # grab a node to tag |
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|
701 n = nodestotag.pop() |
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|
702 # Never tag nullid |
518da3c3b6ce
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|
703 if n == nullid: |
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|
704 continue |
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|
705 # A node's revision number represents its place in a |
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706 # topologically sorted list of nodes. |
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|
707 r = self.rev(n) |
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|
708 if r >= lowestrev: |
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|
709 if n not in ancestors: |
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|
710 # If we are possibly a descendent of one of the roots |
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711 # and we haven't already been marked as an ancestor |
8464
7af92e70bb25
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|
712 ancestors.add(n) # Mark as ancestor |
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|
713 # Add non-nullid parents to list of nodes to tag. |
8153
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Martin Geisler <mg@lazybytes.net>
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diff
changeset
|
714 nodestotag.update([p for p in self.parents(n) if |
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|
715 p != nullid]) |
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changeset
|
716 elif n in heads: # We've seen it before, is it a fake head? |
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|
717 # So it is, real heads should not be the ancestors of |
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changeset
|
718 # any other heads. |
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changeset
|
719 heads.pop(n) |
1459
106fdec8e1fb
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Eric Hopper <hopper@omnifarious.org>
parents:
1458
diff
changeset
|
720 if not ancestors: |
1463
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parents:
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diff
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|
721 return nonodes |
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Eric Hopper <hopper@omnifarious.org>
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changeset
|
722 # Now that we have our set of ancestors, we want to remove any |
518da3c3b6ce
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|
723 # roots that are not ancestors. |
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diff
changeset
|
724 |
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Eric Hopper <hopper@omnifarious.org>
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1351
diff
changeset
|
725 # 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
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changeset
|
726 if lowestrev > nullrev: |
1457
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diff
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|
727 # But, since we weren't, let's recompute the lowest rev to not |
518da3c3b6ce
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Eric Hopper <hopper@omnifarious.org>
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diff
changeset
|
728 # include roots that aren't ancestors. |
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changeset
|
729 |
518da3c3b6ce
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diff
changeset
|
730 # Filter out roots that aren't ancestors of heads |
518da3c3b6ce
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diff
changeset
|
731 roots = [n for n in roots if n in ancestors] |
518da3c3b6ce
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Eric Hopper <hopper@omnifarious.org>
parents:
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diff
changeset
|
732 # Recompute the lowest revision |
518da3c3b6ce
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1351
diff
changeset
|
733 if roots: |
518da3c3b6ce
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Eric Hopper <hopper@omnifarious.org>
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1351
diff
changeset
|
734 lowestrev = min([self.rev(n) for n in roots]) |
518da3c3b6ce
This implements the nodesbetween method, and it removes the newer method
Eric Hopper <hopper@omnifarious.org>
parents:
1351
diff
changeset
|
735 else: |
518da3c3b6ce
This implements the nodesbetween method, and it removes the newer method
Eric Hopper <hopper@omnifarious.org>
parents:
1351
diff
changeset
|
736 # 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
|
737 return nonodes |
1457
518da3c3b6ce
This implements the nodesbetween method, and it removes the newer method
Eric Hopper <hopper@omnifarious.org>
parents:
1351
diff
changeset
|
738 else: |
518da3c3b6ce
This implements the nodesbetween method, and it removes the newer method
Eric Hopper <hopper@omnifarious.org>
parents:
1351
diff
changeset
|
739 # We are descending from nullid, and don't need to care about |
518da3c3b6ce
This implements the nodesbetween method, and it removes the newer method
Eric Hopper <hopper@omnifarious.org>
parents:
1351
diff
changeset
|
740 # 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
|
741 lowestrev = nullrev |
1457
518da3c3b6ce
This implements the nodesbetween method, and it removes the newer method
Eric Hopper <hopper@omnifarious.org>
parents:
1351
diff
changeset
|
742 roots = [nullid] |
8152
08e1baf924ca
replace set-like dictionaries with real sets
Martin Geisler <mg@lazybytes.net>
parents:
8150
diff
changeset
|
743 # Transform our roots list into a set. |
08e1baf924ca
replace set-like dictionaries with real sets
Martin Geisler <mg@lazybytes.net>
parents:
8150
diff
changeset
|
744 descendents = set(roots) |
1457
518da3c3b6ce
This implements the nodesbetween method, and it removes the newer method
Eric Hopper <hopper@omnifarious.org>
parents:
1351
diff
changeset
|
745 # 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
|
746 # 'real' roots (i.e. are descended from other roots). |
518da3c3b6ce
This implements the nodesbetween method, and it removes the newer method
Eric Hopper <hopper@omnifarious.org>
parents:
1351
diff
changeset
|
747 roots = descendents.copy() |
518da3c3b6ce
This implements the nodesbetween method, and it removes the newer method
Eric Hopper <hopper@omnifarious.org>
parents:
1351
diff
changeset
|
748 # Our topologically sorted list of output nodes. |
518da3c3b6ce
This implements the nodesbetween method, and it removes the newer method
Eric Hopper <hopper@omnifarious.org>
parents:
1351
diff
changeset
|
749 orderedout = [] |
518da3c3b6ce
This implements the nodesbetween method, and it removes the newer method
Eric Hopper <hopper@omnifarious.org>
parents:
1351
diff
changeset
|
750 # 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
|
751 # and if nullid shows up in descedents, empty parents will look like |
518da3c3b6ce
This implements the nodesbetween method, and it removes the newer method
Eric Hopper <hopper@omnifarious.org>
parents:
1351
diff
changeset
|
752 # they're descendents. |
518da3c3b6ce
This implements the nodesbetween method, and it removes the newer method
Eric Hopper <hopper@omnifarious.org>
parents:
1351
diff
changeset
|
753 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:
1351
diff
changeset
|
754 n = self.node(r) |
518da3c3b6ce
This implements the nodesbetween method, and it removes the newer method
Eric Hopper <hopper@omnifarious.org>
parents:
1351
diff
changeset
|
755 isdescendent = False |
3578
3b4e00cba57a
Define and use nullrev (revision of nullid) instead of -1.
Thomas Arendsen Hein <thomas@intevation.de>
parents:
3508
diff
changeset
|
756 if lowestrev == nullrev: # Everybody is a descendent of nullid |
1457
518da3c3b6ce
This implements the nodesbetween method, and it removes the newer method
Eric Hopper <hopper@omnifarious.org>
parents:
1351
diff
changeset
|
757 isdescendent = True |
518da3c3b6ce
This implements the nodesbetween method, and it removes the newer method
Eric Hopper <hopper@omnifarious.org>
parents:
1351
diff
changeset
|
758 elif n in descendents: |
518da3c3b6ce
This implements the nodesbetween method, and it removes the newer method
Eric Hopper <hopper@omnifarious.org>
parents:
1351
diff
changeset
|
759 # n is already a descendent |
518da3c3b6ce
This implements the nodesbetween method, and it removes the newer method
Eric Hopper <hopper@omnifarious.org>
parents:
1351
diff
changeset
|
760 isdescendent = True |
518da3c3b6ce
This implements the nodesbetween method, and it removes the newer method
Eric Hopper <hopper@omnifarious.org>
parents:
1351
diff
changeset
|
761 # This check only needs to be done here because all the roots |
518da3c3b6ce
This implements the nodesbetween method, and it removes the newer method
Eric Hopper <hopper@omnifarious.org>
parents:
1351
diff
changeset
|
762 # will start being marked is descendents before the loop. |
518da3c3b6ce
This implements the nodesbetween method, and it removes the newer method
Eric Hopper <hopper@omnifarious.org>
parents:
1351
diff
changeset
|
763 if n in roots: |
518da3c3b6ce
This implements the nodesbetween method, and it removes the newer method
Eric Hopper <hopper@omnifarious.org>
parents:
1351
diff
changeset
|
764 # If n was a root, check if it's a 'real' root. |
518da3c3b6ce
This implements the nodesbetween method, and it removes the newer method
Eric Hopper <hopper@omnifarious.org>
parents:
1351
diff
changeset
|
765 p = tuple(self.parents(n)) |
518da3c3b6ce
This implements the nodesbetween method, and it removes the newer method
Eric Hopper <hopper@omnifarious.org>
parents:
1351
diff
changeset
|
766 # If any of its parents are descendents, it's not a root. |
518da3c3b6ce
This implements the nodesbetween method, and it removes the newer method
Eric Hopper <hopper@omnifarious.org>
parents:
1351
diff
changeset
|
767 if (p[0] in descendents) or (p[1] in descendents): |
8152
08e1baf924ca
replace set-like dictionaries with real sets
Martin Geisler <mg@lazybytes.net>
parents:
8150
diff
changeset
|
768 roots.remove(n) |
1457
518da3c3b6ce
This implements the nodesbetween method, and it removes the newer method
Eric Hopper <hopper@omnifarious.org>
parents:
1351
diff
changeset
|
769 else: |
518da3c3b6ce
This implements the nodesbetween method, and it removes the newer method
Eric Hopper <hopper@omnifarious.org>
parents:
1351
diff
changeset
|
770 p = tuple(self.parents(n)) |
518da3c3b6ce
This implements the nodesbetween method, and it removes the newer method
Eric Hopper <hopper@omnifarious.org>
parents:
1351
diff
changeset
|
771 # A node is a descendent if either of its parents are |
518da3c3b6ce
This implements the nodesbetween method, and it removes the newer method
Eric Hopper <hopper@omnifarious.org>
parents:
1351
diff
changeset
|
772 # descendents. (We seeded the dependents list with the roots |
518da3c3b6ce
This implements the nodesbetween method, and it removes the newer method
Eric Hopper <hopper@omnifarious.org>
parents:
1351
diff
changeset
|
773 # up there, remember?) |
518da3c3b6ce
This implements the nodesbetween method, and it removes the newer method
Eric Hopper <hopper@omnifarious.org>
parents:
1351
diff
changeset
|
774 if (p[0] in descendents) or (p[1] in descendents): |
8152
08e1baf924ca
replace set-like dictionaries with real sets
Martin Geisler <mg@lazybytes.net>
parents:
8150
diff
changeset
|
775 descendents.add(n) |
1457
518da3c3b6ce
This implements the nodesbetween method, and it removes the newer method
Eric Hopper <hopper@omnifarious.org>
parents:
1351
diff
changeset
|
776 isdescendent = True |
518da3c3b6ce
This implements the nodesbetween method, and it removes the newer method
Eric Hopper <hopper@omnifarious.org>
parents:
1351
diff
changeset
|
777 if isdescendent and ((ancestors is None) or (n in ancestors)): |
518da3c3b6ce
This implements the nodesbetween method, and it removes the newer method
Eric Hopper <hopper@omnifarious.org>
parents:
1351
diff
changeset
|
778 # Only include nodes that are both descendents and ancestors. |
518da3c3b6ce
This implements the nodesbetween method, and it removes the newer method
Eric Hopper <hopper@omnifarious.org>
parents:
1351
diff
changeset
|
779 orderedout.append(n) |
518da3c3b6ce
This implements the nodesbetween method, and it removes the newer method
Eric Hopper <hopper@omnifarious.org>
parents:
1351
diff
changeset
|
780 if (ancestors is not None) and (n in heads): |
518da3c3b6ce
This implements the nodesbetween method, and it removes the newer method
Eric Hopper <hopper@omnifarious.org>
parents:
1351
diff
changeset
|
781 # We're trying to figure out which heads are reachable |
518da3c3b6ce
This implements the nodesbetween method, and it removes the newer method
Eric Hopper <hopper@omnifarious.org>
parents:
1351
diff
changeset
|
782 # from roots. |
518da3c3b6ce
This implements the nodesbetween method, and it removes the newer method
Eric Hopper <hopper@omnifarious.org>
parents:
1351
diff
changeset
|
783 # Mark this head as having been reached |
518da3c3b6ce
This implements the nodesbetween method, and it removes the newer method
Eric Hopper <hopper@omnifarious.org>
parents:
1351
diff
changeset
|
784 heads[n] = 1 |
518da3c3b6ce
This implements the nodesbetween method, and it removes the newer method
Eric Hopper <hopper@omnifarious.org>
parents:
1351
diff
changeset
|
785 elif ancestors is None: |
518da3c3b6ce
This implements the nodesbetween method, and it removes the newer method
Eric Hopper <hopper@omnifarious.org>
parents:
1351
diff
changeset
|
786 # Otherwise, we're trying to discover the heads. |
518da3c3b6ce
This implements the nodesbetween method, and it removes the newer method
Eric Hopper <hopper@omnifarious.org>
parents:
1351
diff
changeset
|
787 # Assume this is a head because if it isn't, the next step |
518da3c3b6ce
This implements the nodesbetween method, and it removes the newer method
Eric Hopper <hopper@omnifarious.org>
parents:
1351
diff
changeset
|
788 # will eventually remove it. |
518da3c3b6ce
This implements the nodesbetween method, and it removes the newer method
Eric Hopper <hopper@omnifarious.org>
parents:
1351
diff
changeset
|
789 heads[n] = 1 |
518da3c3b6ce
This implements the nodesbetween method, and it removes the newer method
Eric Hopper <hopper@omnifarious.org>
parents:
1351
diff
changeset
|
790 # But, obviously its parents aren't. |
518da3c3b6ce
This implements the nodesbetween method, and it removes the newer method
Eric Hopper <hopper@omnifarious.org>
parents:
1351
diff
changeset
|
791 for p in self.parents(n): |
518da3c3b6ce
This implements the nodesbetween method, and it removes the newer method
Eric Hopper <hopper@omnifarious.org>
parents:
1351
diff
changeset
|
792 heads.pop(p, None) |
518da3c3b6ce
This implements the nodesbetween method, and it removes the newer method
Eric Hopper <hopper@omnifarious.org>
parents:
1351
diff
changeset
|
793 heads = [n for n in heads.iterkeys() if heads[n] != 0] |
8152
08e1baf924ca
replace set-like dictionaries with real sets
Martin Geisler <mg@lazybytes.net>
parents:
8150
diff
changeset
|
794 roots = list(roots) |
1457
518da3c3b6ce
This implements the nodesbetween method, and it removes the newer method
Eric Hopper <hopper@omnifarious.org>
parents:
1351
diff
changeset
|
795 assert orderedout |
518da3c3b6ce
This implements the nodesbetween method, and it removes the newer method
Eric Hopper <hopper@omnifarious.org>
parents:
1351
diff
changeset
|
796 assert roots |
518da3c3b6ce
This implements the nodesbetween method, and it removes the newer method
Eric Hopper <hopper@omnifarious.org>
parents:
1351
diff
changeset
|
797 assert heads |
518da3c3b6ce
This implements the nodesbetween method, and it removes the newer method
Eric Hopper <hopper@omnifarious.org>
parents:
1351
diff
changeset
|
798 return (orderedout, roots, heads) |
518da3c3b6ce
This implements the nodesbetween method, and it removes the newer method
Eric Hopper <hopper@omnifarious.org>
parents:
1351
diff
changeset
|
799 |
3923
27230c29bfec
fix calculation of new heads added during push with -r
Benoit Boissinot <benoit.boissinot@ens-lyon.org>
parents:
3755
diff
changeset
|
800 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
|
801 """return the list of all nodes that have no children |
1551
e793cbc8be00
Fixes to "hg heads -r FOO":
Thomas Arendsen Hein <thomas@intevation.de>
parents:
1550
diff
changeset
|
802 |
e793cbc8be00
Fixes to "hg heads -r FOO":
Thomas Arendsen Hein <thomas@intevation.de>
parents:
1550
diff
changeset
|
803 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
|
804 start will be returned |
3923
27230c29bfec
fix calculation of new heads added during push with -r
Benoit Boissinot <benoit.boissinot@ens-lyon.org>
parents:
3755
diff
changeset
|
805 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
|
806 as if they had no children |
1551
e793cbc8be00
Fixes to "hg heads -r FOO":
Thomas Arendsen Hein <thomas@intevation.de>
parents:
1550
diff
changeset
|
807 """ |
4991
9c8c42bcf17a
revlog: implement a fast path for heads
Matt Mackall <mpm@selenic.com>
parents:
4990
diff
changeset
|
808 if start is None and stop is None: |
6750
fb42030d79d6
add __len__ and __iter__ methods to repo and revlog
Matt Mackall <mpm@selenic.com>
parents:
6703
diff
changeset
|
809 count = len(self) |
4991
9c8c42bcf17a
revlog: implement a fast path for heads
Matt Mackall <mpm@selenic.com>
parents:
4990
diff
changeset
|
810 if not count: |
9c8c42bcf17a
revlog: implement a fast path for heads
Matt Mackall <mpm@selenic.com>
parents:
4990
diff
changeset
|
811 return [nullid] |
9c8c42bcf17a
revlog: implement a fast path for heads
Matt Mackall <mpm@selenic.com>
parents:
4990
diff
changeset
|
812 ishead = [1] * (count + 1) |
9c8c42bcf17a
revlog: implement a fast path for heads
Matt Mackall <mpm@selenic.com>
parents:
4990
diff
changeset
|
813 index = self.index |
7089
c57b30f1bc15
revlog: fix heads performance regression
Matt Mackall <mpm@selenic.com>
parents:
7062
diff
changeset
|
814 for r in xrange(count): |
4991
9c8c42bcf17a
revlog: implement a fast path for heads
Matt Mackall <mpm@selenic.com>
parents:
4990
diff
changeset
|
815 e = index[r] |
9c8c42bcf17a
revlog: implement a fast path for heads
Matt Mackall <mpm@selenic.com>
parents:
4990
diff
changeset
|
816 ishead[e[5]] = ishead[e[6]] = 0 |
7089
c57b30f1bc15
revlog: fix heads performance regression
Matt Mackall <mpm@selenic.com>
parents:
7062
diff
changeset
|
817 return [self.node(r) for r in xrange(count) if ishead[r]] |
4991
9c8c42bcf17a
revlog: implement a fast path for heads
Matt Mackall <mpm@selenic.com>
parents:
4990
diff
changeset
|
818 |
1551
e793cbc8be00
Fixes to "hg heads -r FOO":
Thomas Arendsen Hein <thomas@intevation.de>
parents:
1550
diff
changeset
|
819 if start is None: |
e793cbc8be00
Fixes to "hg heads -r FOO":
Thomas Arendsen Hein <thomas@intevation.de>
parents:
1550
diff
changeset
|
820 start = nullid |
3923
27230c29bfec
fix calculation of new heads added during push with -r
Benoit Boissinot <benoit.boissinot@ens-lyon.org>
parents:
3755
diff
changeset
|
821 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
|
822 stop = [] |
8152
08e1baf924ca
replace set-like dictionaries with real sets
Martin Geisler <mg@lazybytes.net>
parents:
8150
diff
changeset
|
823 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
|
824 startrev = self.rev(start) |
8464
7af92e70bb25
revlog: use set instead of dict
Benoit Boissinot <benoit.boissinot@ens-lyon.org>
parents:
8453
diff
changeset
|
825 reachable = set((startrev,)) |
7af92e70bb25
revlog: use set instead of dict
Benoit Boissinot <benoit.boissinot@ens-lyon.org>
parents:
8453
diff
changeset
|
826 heads = set((startrev,)) |
1083 | 827 |
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
|
828 parentrevs = self.parentrevs |
6750
fb42030d79d6
add __len__ and __iter__ methods to repo and revlog
Matt Mackall <mpm@selenic.com>
parents:
6703
diff
changeset
|
829 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:
2489
diff
changeset
|
830 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
|
831 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
|
832 if r not in stoprevs: |
8464
7af92e70bb25
revlog: use set instead of dict
Benoit Boissinot <benoit.boissinot@ens-lyon.org>
parents:
8453
diff
changeset
|
833 reachable.add(r) |
7af92e70bb25
revlog: use set instead of dict
Benoit Boissinot <benoit.boissinot@ens-lyon.org>
parents:
8453
diff
changeset
|
834 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
|
835 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
|
836 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
|
837 |
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
|
838 return [self.node(r) for r in heads] |
370 | 839 |
840 def children(self, node): | |
1083 | 841 """find the children of a given node""" |
370 | 842 c = [] |
843 p = self.rev(node) | |
6750
fb42030d79d6
add __len__ and __iter__ methods to repo and revlog
Matt Mackall <mpm@selenic.com>
parents:
6703
diff
changeset
|
844 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
|
845 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
|
846 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
|
847 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
|
848 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
|
849 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
|
850 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
|
851 c.append(self.node(r)) |
370 | 852 return c |
515 | 853 |
10897
adb6a291bbdb
revlog: put graph related functions together
Benoit Boissinot <benoit.boissinot@ens-lyon.org>
parents:
10404
diff
changeset
|
854 def descendant(self, start, end): |
adb6a291bbdb
revlog: put graph related functions together
Benoit Boissinot <benoit.boissinot@ens-lyon.org>
parents:
10404
diff
changeset
|
855 for i in self.descendants(start): |
adb6a291bbdb
revlog: put graph related functions together
Benoit Boissinot <benoit.boissinot@ens-lyon.org>
parents:
10404
diff
changeset
|
856 if i == end: |
adb6a291bbdb
revlog: put graph related functions together
Benoit Boissinot <benoit.boissinot@ens-lyon.org>
parents:
10404
diff
changeset
|
857 return True |
adb6a291bbdb
revlog: put graph related functions together
Benoit Boissinot <benoit.boissinot@ens-lyon.org>
parents:
10404
diff
changeset
|
858 elif i > end: |
adb6a291bbdb
revlog: put graph related functions together
Benoit Boissinot <benoit.boissinot@ens-lyon.org>
parents:
10404
diff
changeset
|
859 break |
adb6a291bbdb
revlog: put graph related functions together
Benoit Boissinot <benoit.boissinot@ens-lyon.org>
parents:
10404
diff
changeset
|
860 return False |
adb6a291bbdb
revlog: put graph related functions together
Benoit Boissinot <benoit.boissinot@ens-lyon.org>
parents:
10404
diff
changeset
|
861 |
adb6a291bbdb
revlog: put graph related functions together
Benoit Boissinot <benoit.boissinot@ens-lyon.org>
parents:
10404
diff
changeset
|
862 def ancestor(self, a, b): |
adb6a291bbdb
revlog: put graph related functions together
Benoit Boissinot <benoit.boissinot@ens-lyon.org>
parents:
10404
diff
changeset
|
863 """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
|
864 |
adb6a291bbdb
revlog: put graph related functions together
Benoit Boissinot <benoit.boissinot@ens-lyon.org>
parents:
10404
diff
changeset
|
865 # 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
|
866 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
|
867 start, end = sorted((a, b)) |
adb6a291bbdb
revlog: put graph related functions together
Benoit Boissinot <benoit.boissinot@ens-lyon.org>
parents:
10404
diff
changeset
|
868 if self.descendant(start, end): |
adb6a291bbdb
revlog: put graph related functions together
Benoit Boissinot <benoit.boissinot@ens-lyon.org>
parents:
10404
diff
changeset
|
869 return self.node(start) |
adb6a291bbdb
revlog: put graph related functions together
Benoit Boissinot <benoit.boissinot@ens-lyon.org>
parents:
10404
diff
changeset
|
870 |
adb6a291bbdb
revlog: put graph related functions together
Benoit Boissinot <benoit.boissinot@ens-lyon.org>
parents:
10404
diff
changeset
|
871 def parents(rev): |
adb6a291bbdb
revlog: put graph related functions together
Benoit Boissinot <benoit.boissinot@ens-lyon.org>
parents:
10404
diff
changeset
|
872 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
|
873 |
adb6a291bbdb
revlog: put graph related functions together
Benoit Boissinot <benoit.boissinot@ens-lyon.org>
parents:
10404
diff
changeset
|
874 c = ancestor.ancestor(a, b, parents) |
adb6a291bbdb
revlog: put graph related functions together
Benoit Boissinot <benoit.boissinot@ens-lyon.org>
parents:
10404
diff
changeset
|
875 if c is None: |
adb6a291bbdb
revlog: put graph related functions together
Benoit Boissinot <benoit.boissinot@ens-lyon.org>
parents:
10404
diff
changeset
|
876 return nullid |
adb6a291bbdb
revlog: put graph related functions together
Benoit Boissinot <benoit.boissinot@ens-lyon.org>
parents:
10404
diff
changeset
|
877 |
adb6a291bbdb
revlog: put graph related functions together
Benoit Boissinot <benoit.boissinot@ens-lyon.org>
parents:
10404
diff
changeset
|
878 return self.node(c) |
adb6a291bbdb
revlog: put graph related functions together
Benoit Boissinot <benoit.boissinot@ens-lyon.org>
parents:
10404
diff
changeset
|
879 |
3453
dba3cadef789
Only look up tags and branches as a last resort
Matt Mackall <mpm@selenic.com>
parents:
3438
diff
changeset
|
880 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
|
881 if isinstance(id, (long, int)): |
3156
d01e4cb2f5f2
cleanups in revlog.lookup
Benoit Boissinot <benoit.boissinot@ens-lyon.org>
parents:
3139
diff
changeset
|
882 # 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
|
883 return self.node(id) |
3438 | 884 if len(id) == 20: |
885 # possibly a binary node | |
886 # odds of a binary node being all hex in ASCII are 1 in 10**25 | |
887 try: | |
888 node = id | |
7874
d812029cda85
cleanup: drop variables for unused return values
Peter Arrenbrecht <peter.arrenbrecht@gmail.com>
parents:
7873
diff
changeset
|
889 self.rev(node) # quick search the index |
3438 | 890 return node |
3930
01d98d68d697
Add revlog.LookupError exception, and use it instead of RevlogError.
Brendan Cully <brendan@kublai.com>
parents:
3928
diff
changeset
|
891 except LookupError: |
3438 | 892 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
|
893 try: |
3156
d01e4cb2f5f2
cleanups in revlog.lookup
Benoit Boissinot <benoit.boissinot@ens-lyon.org>
parents:
3139
diff
changeset
|
894 # str(rev) |
36
da28286bf6b7
Add smart node lookup by substring or by rev number
mpm@selenic.com
parents:
26
diff
changeset
|
895 rev = int(id) |
4980
fc44c8df9d99
revlog: some codingstyle cleanups
Matt Mackall <mpm@selenic.com>
parents:
4979
diff
changeset
|
896 if str(rev) != id: |
fc44c8df9d99
revlog: some codingstyle cleanups
Matt Mackall <mpm@selenic.com>
parents:
4979
diff
changeset
|
897 raise ValueError |
fc44c8df9d99
revlog: some codingstyle cleanups
Matt Mackall <mpm@selenic.com>
parents:
4979
diff
changeset
|
898 if rev < 0: |
6750
fb42030d79d6
add __len__ and __iter__ methods to repo and revlog
Matt Mackall <mpm@selenic.com>
parents:
6703
diff
changeset
|
899 rev = len(self) + rev |
fb42030d79d6
add __len__ and __iter__ methods to repo and revlog
Matt Mackall <mpm@selenic.com>
parents:
6703
diff
changeset
|
900 if rev < 0 or rev >= len(self): |
4980
fc44c8df9d99
revlog: some codingstyle cleanups
Matt Mackall <mpm@selenic.com>
parents:
4979
diff
changeset
|
901 raise ValueError |
36
da28286bf6b7
Add smart node lookup by substring or by rev number
mpm@selenic.com
parents:
26
diff
changeset
|
902 return self.node(rev) |
469 | 903 except (ValueError, OverflowError): |
3156
d01e4cb2f5f2
cleanups in revlog.lookup
Benoit Boissinot <benoit.boissinot@ens-lyon.org>
parents:
3139
diff
changeset
|
904 pass |
3453
dba3cadef789
Only look up tags and branches as a last resort
Matt Mackall <mpm@selenic.com>
parents:
3438
diff
changeset
|
905 if len(id) == 40: |
dba3cadef789
Only look up tags and branches as a last resort
Matt Mackall <mpm@selenic.com>
parents:
3438
diff
changeset
|
906 try: |
3438 | 907 # a full hex nodeid? |
908 node = bin(id) | |
7874
d812029cda85
cleanup: drop variables for unused return values
Peter Arrenbrecht <peter.arrenbrecht@gmail.com>
parents:
7873
diff
changeset
|
909 self.rev(node) |
3157
4fe41a9e4591
optimize revlog.lookup when passed hex(node)[:...]
Benoit Boissinot <benoit.boissinot@ens-lyon.org>
parents:
3156
diff
changeset
|
910 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
|
911 except (TypeError, LookupError): |
3453
dba3cadef789
Only look up tags and branches as a last resort
Matt Mackall <mpm@selenic.com>
parents:
3438
diff
changeset
|
912 pass |
dba3cadef789
Only look up tags and branches as a last resort
Matt Mackall <mpm@selenic.com>
parents:
3438
diff
changeset
|
913 |
dba3cadef789
Only look up tags and branches as a last resort
Matt Mackall <mpm@selenic.com>
parents:
3438
diff
changeset
|
914 def _partialmatch(self, id): |
dba3cadef789
Only look up tags and branches as a last resort
Matt Mackall <mpm@selenic.com>
parents:
3438
diff
changeset
|
915 if len(id) < 40: |
dba3cadef789
Only look up tags and branches as a last resort
Matt Mackall <mpm@selenic.com>
parents:
3438
diff
changeset
|
916 try: |
3438 | 917 # hex(node)[:...] |
9029
0001e49f1c11
compat: use // for integer division
Alejandro Santos <alejolp@alejolp.com>
parents:
8658
diff
changeset
|
918 l = len(id) // 2 # grab an even number of digits |
10282
08a0f04b56bd
many, many trivial check-code fixups
Matt Mackall <mpm@selenic.com>
parents:
10264
diff
changeset
|
919 bin_id = bin(id[:l * 2]) |
7365
ec3aafa84d44
lookup: speed up partial lookup
Matt Mackall <mpm@selenic.com>
parents:
7363
diff
changeset
|
920 nl = [n for n in self.nodemap if n[:l] == bin_id] |
ec3aafa84d44
lookup: speed up partial lookup
Matt Mackall <mpm@selenic.com>
parents:
7363
diff
changeset
|
921 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
|
922 if len(nl) > 0: |
ec3aafa84d44
lookup: speed up partial lookup
Matt Mackall <mpm@selenic.com>
parents:
7363
diff
changeset
|
923 if len(nl) == 1: |
ec3aafa84d44
lookup: speed up partial lookup
Matt Mackall <mpm@selenic.com>
parents:
7363
diff
changeset
|
924 return nl[0] |
ec3aafa84d44
lookup: speed up partial lookup
Matt Mackall <mpm@selenic.com>
parents:
7363
diff
changeset
|
925 raise LookupError(id, self.indexfile, |
ec3aafa84d44
lookup: speed up partial lookup
Matt Mackall <mpm@selenic.com>
parents:
7363
diff
changeset
|
926 _('ambiguous identifier')) |
ec3aafa84d44
lookup: speed up partial lookup
Matt Mackall <mpm@selenic.com>
parents:
7363
diff
changeset
|
927 return None |
3453
dba3cadef789
Only look up tags and branches as a last resort
Matt Mackall <mpm@selenic.com>
parents:
3438
diff
changeset
|
928 except TypeError: |
dba3cadef789
Only look up tags and branches as a last resort
Matt Mackall <mpm@selenic.com>
parents:
3438
diff
changeset
|
929 pass |
dba3cadef789
Only look up tags and branches as a last resort
Matt Mackall <mpm@selenic.com>
parents:
3438
diff
changeset
|
930 |
dba3cadef789
Only look up tags and branches as a last resort
Matt Mackall <mpm@selenic.com>
parents:
3438
diff
changeset
|
931 def lookup(self, id): |
dba3cadef789
Only look up tags and branches as a last resort
Matt Mackall <mpm@selenic.com>
parents:
3438
diff
changeset
|
932 """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
|
933 - 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
|
934 - 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
|
935 """ |
dba3cadef789
Only look up tags and branches as a last resort
Matt Mackall <mpm@selenic.com>
parents:
3438
diff
changeset
|
936 n = self._match(id) |
dba3cadef789
Only look up tags and branches as a last resort
Matt Mackall <mpm@selenic.com>
parents:
3438
diff
changeset
|
937 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
|
938 return n |
dba3cadef789
Only look up tags and branches as a last resort
Matt Mackall <mpm@selenic.com>
parents:
3438
diff
changeset
|
939 n = self._partialmatch(id) |
dba3cadef789
Only look up tags and branches as a last resort
Matt Mackall <mpm@selenic.com>
parents:
3438
diff
changeset
|
940 if n: |
dba3cadef789
Only look up tags and branches as a last resort
Matt Mackall <mpm@selenic.com>
parents:
3438
diff
changeset
|
941 return n |
515 | 942 |
6228
c0c4c7b1e8d3
revlog: report node and file when lookup fails
Matt Mackall <mpm@selenic.com>
parents:
6212
diff
changeset
|
943 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
|
944 |
2890
5df3e5cf16bc
Move cmp bits from filelog to revlog
Matt Mackall <mpm@selenic.com>
parents:
2859
diff
changeset
|
945 def cmp(self, node, text): |
5df3e5cf16bc
Move cmp bits from filelog to revlog
Matt Mackall <mpm@selenic.com>
parents:
2859
diff
changeset
|
946 """compare text with a given file revision""" |
5df3e5cf16bc
Move cmp bits from filelog to revlog
Matt Mackall <mpm@selenic.com>
parents:
2859
diff
changeset
|
947 p1, p2 = self.parents(node) |
5df3e5cf16bc
Move cmp bits from filelog to revlog
Matt Mackall <mpm@selenic.com>
parents:
2859
diff
changeset
|
948 return hash(text, p1, p2) != node |
5df3e5cf16bc
Move cmp bits from filelog to revlog
Matt Mackall <mpm@selenic.com>
parents:
2859
diff
changeset
|
949 |
8316
d593922cf480
revlog: clean up the chunk caching code
Matt Mackall <mpm@selenic.com>
parents:
8315
diff
changeset
|
950 def _addchunk(self, offset, data): |
d593922cf480
revlog: clean up the chunk caching code
Matt Mackall <mpm@selenic.com>
parents:
8315
diff
changeset
|
951 o, d = self._chunkcache |
d593922cf480
revlog: clean up the chunk caching code
Matt Mackall <mpm@selenic.com>
parents:
8315
diff
changeset
|
952 # try to add to existing cache |
d593922cf480
revlog: clean up the chunk caching code
Matt Mackall <mpm@selenic.com>
parents:
8315
diff
changeset
|
953 if o + len(d) == offset and len(d) + len(data) < _prereadsize: |
d593922cf480
revlog: clean up the chunk caching code
Matt Mackall <mpm@selenic.com>
parents:
8315
diff
changeset
|
954 self._chunkcache = o, d + data |
d593922cf480
revlog: clean up the chunk caching code
Matt Mackall <mpm@selenic.com>
parents:
8315
diff
changeset
|
955 else: |
d593922cf480
revlog: clean up the chunk caching code
Matt Mackall <mpm@selenic.com>
parents:
8315
diff
changeset
|
956 self._chunkcache = offset, data |
d593922cf480
revlog: clean up the chunk caching code
Matt Mackall <mpm@selenic.com>
parents:
8315
diff
changeset
|
957 |
8650
ef393d6ec030
revlog: refactor chunk cache interface again
Matt Mackall <mpm@selenic.com>
parents:
8643
diff
changeset
|
958 def _loadchunk(self, offset, length): |
ef393d6ec030
revlog: refactor chunk cache interface again
Matt Mackall <mpm@selenic.com>
parents:
8643
diff
changeset
|
959 if self._inline: |
ef393d6ec030
revlog: refactor chunk cache interface again
Matt Mackall <mpm@selenic.com>
parents:
8643
diff
changeset
|
960 df = self.opener(self.indexfile) |
ef393d6ec030
revlog: refactor chunk cache interface again
Matt Mackall <mpm@selenic.com>
parents:
8643
diff
changeset
|
961 else: |
ef393d6ec030
revlog: refactor chunk cache interface again
Matt Mackall <mpm@selenic.com>
parents:
8643
diff
changeset
|
962 df = self.opener(self.datafile) |
8316
d593922cf480
revlog: clean up the chunk caching code
Matt Mackall <mpm@selenic.com>
parents:
8315
diff
changeset
|
963 |
d593922cf480
revlog: clean up the chunk caching code
Matt Mackall <mpm@selenic.com>
parents:
8315
diff
changeset
|
964 readahead = max(65536, length) |
d593922cf480
revlog: clean up the chunk caching code
Matt Mackall <mpm@selenic.com>
parents:
8315
diff
changeset
|
965 df.seek(offset) |
d593922cf480
revlog: clean up the chunk caching code
Matt Mackall <mpm@selenic.com>
parents:
8315
diff
changeset
|
966 d = df.read(readahead) |
d593922cf480
revlog: clean up the chunk caching code
Matt Mackall <mpm@selenic.com>
parents:
8315
diff
changeset
|
967 self._addchunk(offset, d) |
d593922cf480
revlog: clean up the chunk caching code
Matt Mackall <mpm@selenic.com>
parents:
8315
diff
changeset
|
968 if readahead > length: |
d593922cf480
revlog: clean up the chunk caching code
Matt Mackall <mpm@selenic.com>
parents:
8315
diff
changeset
|
969 return d[:length] |
d593922cf480
revlog: clean up the chunk caching code
Matt Mackall <mpm@selenic.com>
parents:
8315
diff
changeset
|
970 return d |
d593922cf480
revlog: clean up the chunk caching code
Matt Mackall <mpm@selenic.com>
parents:
8315
diff
changeset
|
971 |
8650
ef393d6ec030
revlog: refactor chunk cache interface again
Matt Mackall <mpm@selenic.com>
parents:
8643
diff
changeset
|
972 def _getchunk(self, offset, length): |
8316
d593922cf480
revlog: clean up the chunk caching code
Matt Mackall <mpm@selenic.com>
parents:
8315
diff
changeset
|
973 o, d = self._chunkcache |
d593922cf480
revlog: clean up the chunk caching code
Matt Mackall <mpm@selenic.com>
parents:
8315
diff
changeset
|
974 l = len(d) |
d593922cf480
revlog: clean up the chunk caching code
Matt Mackall <mpm@selenic.com>
parents:
8315
diff
changeset
|
975 |
d593922cf480
revlog: clean up the chunk caching code
Matt Mackall <mpm@selenic.com>
parents:
8315
diff
changeset
|
976 # is it in the cache? |
d593922cf480
revlog: clean up the chunk caching code
Matt Mackall <mpm@selenic.com>
parents:
8315
diff
changeset
|
977 cachestart = offset - o |
d593922cf480
revlog: clean up the chunk caching code
Matt Mackall <mpm@selenic.com>
parents:
8315
diff
changeset
|
978 cacheend = cachestart + length |
d593922cf480
revlog: clean up the chunk caching code
Matt Mackall <mpm@selenic.com>
parents:
8315
diff
changeset
|
979 if cachestart >= 0 and cacheend <= l: |
d593922cf480
revlog: clean up the chunk caching code
Matt Mackall <mpm@selenic.com>
parents:
8315
diff
changeset
|
980 if cachestart == 0 and cacheend == l: |
d593922cf480
revlog: clean up the chunk caching code
Matt Mackall <mpm@selenic.com>
parents:
8315
diff
changeset
|
981 return d # avoid a copy |
d593922cf480
revlog: clean up the chunk caching code
Matt Mackall <mpm@selenic.com>
parents:
8315
diff
changeset
|
982 return d[cachestart:cacheend] |
d593922cf480
revlog: clean up the chunk caching code
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diff
changeset
|
983 |
8650
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diff
changeset
|
984 return self._loadchunk(offset, length) |
8316
d593922cf480
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Matt Mackall <mpm@selenic.com>
parents:
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changeset
|
985 |
8650
ef393d6ec030
revlog: refactor chunk cache interface again
Matt Mackall <mpm@selenic.com>
parents:
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diff
changeset
|
986 def _chunkraw(self, startrev, endrev): |
8318
6b8513f8274a
revlog: add cache priming for reconstructing delta chains
Matt Mackall <mpm@selenic.com>
parents:
8317
diff
changeset
|
987 start = self.start(startrev) |
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Matt Mackall <mpm@selenic.com>
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diff
changeset
|
988 length = self.end(endrev) - start |
8318
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Matt Mackall <mpm@selenic.com>
parents:
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diff
changeset
|
989 if self._inline: |
6b8513f8274a
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Matt Mackall <mpm@selenic.com>
parents:
8317
diff
changeset
|
990 start += (startrev + 1) * self._io.size |
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|
991 return self._getchunk(start, length) |
8318
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Matt Mackall <mpm@selenic.com>
parents:
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diff
changeset
|
992 |
8650
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|
993 def _chunk(self, rev): |
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parents:
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diff
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|
994 return decompress(self._chunkraw(rev, rev)) |
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Matt Mackall <mpm@selenic.com>
parents:
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diff
changeset
|
995 |
ef393d6ec030
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Matt Mackall <mpm@selenic.com>
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changeset
|
996 def _chunkclear(self): |
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parents:
8643
diff
changeset
|
997 self._chunkcache = (0, '') |
1598
14d1f1868bf6
cleanup of revlog.group when repository is local
Benoit Boissinot <benoit.boissinot@ens-lyon.org>
parents:
1559
diff
changeset
|
998 |
1941
7518823709a2
revlog.py: factorization and fixes for rev < 0 (nullid)
Benoit Boissinot <benoit.boissinot@ens-lyon.org>
parents:
1853
diff
changeset
|
999 def revdiff(self, rev1, rev2): |
7518823709a2
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Benoit Boissinot <benoit.boissinot@ens-lyon.org>
parents:
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changeset
|
1000 """return or calculate a delta between two revisions""" |
5005
72082bfced9a
revlog: minor revdiff reorganization
Matt Mackall <mpm@selenic.com>
parents:
5004
diff
changeset
|
1001 if rev1 + 1 == rev2 and self.base(rev1) == self.base(rev2): |
8650
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parents:
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diff
changeset
|
1002 return self._chunk(rev2) |
5005
72082bfced9a
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Matt Mackall <mpm@selenic.com>
parents:
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diff
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|
1003 |
72082bfced9a
revlog: minor revdiff reorganization
Matt Mackall <mpm@selenic.com>
parents:
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diff
changeset
|
1004 return mdiff.textdiff(self.revision(self.node(rev1)), |
72082bfced9a
revlog: minor revdiff reorganization
Matt Mackall <mpm@selenic.com>
parents:
5004
diff
changeset
|
1005 self.revision(self.node(rev2))) |
119
c7a66f9752a4
Add code to retrieve or construct a revlog delta
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parents:
117
diff
changeset
|
1006 |
0
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parents:
diff
changeset
|
1007 def revision(self, node): |
6912 | 1008 """return an uncompressed revision of a given node""" |
4980
fc44c8df9d99
revlog: some codingstyle cleanups
Matt Mackall <mpm@selenic.com>
parents:
4979
diff
changeset
|
1009 if node == nullid: |
fc44c8df9d99
revlog: some codingstyle cleanups
Matt Mackall <mpm@selenic.com>
parents:
4979
diff
changeset
|
1010 return "" |
4984 | 1011 if self._cache and self._cache[0] == node: |
9420
d0db168136dc
manifest/revlog: do not let the revlog cache mutable objects
Benoit Boissinot <benoit.boissinot@ens-lyon.org>
parents:
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diff
changeset
|
1012 return self._cache[2] |
0
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|
1013 |
1083 | 1014 # look up what we need to read |
0
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|
1015 text = None |
9117c6561b0b
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|
1016 rev = self.rev(node) |
1598
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cleanup of revlog.group when repository is local
Benoit Boissinot <benoit.boissinot@ens-lyon.org>
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diff
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|
1017 base = self.base(rev) |
0
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|
1018 |
5004
825516d16b25
revlog: move flag checking out of the offset fastpath
Matt Mackall <mpm@selenic.com>
parents:
4996
diff
changeset
|
1019 # check rev flags |
825516d16b25
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Matt Mackall <mpm@selenic.com>
parents:
4996
diff
changeset
|
1020 if self.index[rev][0] & 0xFFFF: |
5312
fb070713ff36
revlog: more robust for damaged indexes
Matt Mackall <mpm@selenic.com>
parents:
5007
diff
changeset
|
1021 raise RevlogError(_('incompatible revision flag %x') % |
fb070713ff36
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Matt Mackall <mpm@selenic.com>
parents:
5007
diff
changeset
|
1022 (self.index[rev][0] & 0xFFFF)) |
5004
825516d16b25
revlog: move flag checking out of the offset fastpath
Matt Mackall <mpm@selenic.com>
parents:
4996
diff
changeset
|
1023 |
1083 | 1024 # do we have useful data cached? |
4984 | 1025 if self._cache and self._cache[1] >= base and self._cache[1] < rev: |
1026 base = self._cache[1] | |
9420
d0db168136dc
manifest/revlog: do not let the revlog cache mutable objects
Benoit Boissinot <benoit.boissinot@ens-lyon.org>
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changeset
|
1027 text = self._cache[2] |
0
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|
1028 |
8650
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diff
changeset
|
1029 self._loadindex(base, rev + 1) |
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diff
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|
1030 self._chunkraw(base, rev) |
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|
1031 if text is None: |
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diff
changeset
|
1032 text = self._chunk(base) |
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|
1033 |
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diff
changeset
|
1034 bins = [self._chunk(r) for r in xrange(base + 1, rev + 1)] |
4989
1aaed3d69772
revlog: eliminate diff and patches functions
Matt Mackall <mpm@selenic.com>
parents:
4988
diff
changeset
|
1035 text = mdiff.patches(text, bins) |
1598
14d1f1868bf6
cleanup of revlog.group when repository is local
Benoit Boissinot <benoit.boissinot@ens-lyon.org>
parents:
1559
diff
changeset
|
1036 p1, p2 = self.parents(node) |
26 | 1037 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
|
1038 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
|
1039 % (self.indexfile, rev)) |
0
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|
1040 |
4984 | 1041 self._cache = (node, rev, text) |
515 | 1042 return text |
0
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|
1043 |
2075
343aeefb553b
Make the appendfile class inline-data index friendly
mason@suse.com
parents:
2073
diff
changeset
|
1044 def checkinlinesize(self, tr, fp=None): |
10913
f2ecc5733c89
revlog: factor out _maxinline global.
Greg Ward <greg-hg@gerg.ca>
parents:
10404
diff
changeset
|
1045 if not self._inline or (self.start(-2) + self.length(-2)) < _maxinline: |
2073 | 1046 return |
8315
c8493310ad9b
revlog: use index to find index size
Matt Mackall <mpm@selenic.com>
parents:
8314
diff
changeset
|
1047 |
2084 | 1048 trinfo = tr.find(self.indexfile) |
8527
f9a80054dd3c
use 'x is None' instead of 'x == None'
Martin Geisler <mg@lazybytes.net>
parents:
8464
diff
changeset
|
1049 if trinfo is None: |
3680
69cf255a55a1
Indentation cleanups for 2956948b81f3.
Thomas Arendsen Hein <thomas@intevation.de>
parents:
3679
diff
changeset
|
1050 raise RevlogError(_("%s not found in the transaction") |
69cf255a55a1
Indentation cleanups for 2956948b81f3.
Thomas Arendsen Hein <thomas@intevation.de>
parents:
3679
diff
changeset
|
1051 % self.indexfile) |
2084 | 1052 |
1053 trindex = trinfo[2] | |
1054 dataoff = self.start(trindex) | |
1055 | |
1056 tr.add(self.datafile, dataoff) | |
8315
c8493310ad9b
revlog: use index to find index size
Matt Mackall <mpm@selenic.com>
parents:
8314
diff
changeset
|
1057 |
8317
5cdf4067857a
revlog: use chunk cache to avoid rereading when splitting inline files
Matt Mackall <mpm@selenic.com>
parents:
8316
diff
changeset
|
1058 if fp: |
5cdf4067857a
revlog: use chunk cache to avoid rereading when splitting inline files
Matt Mackall <mpm@selenic.com>
parents:
8316
diff
changeset
|
1059 fp.flush() |
5cdf4067857a
revlog: use chunk cache to avoid rereading when splitting inline files
Matt Mackall <mpm@selenic.com>
parents:
8316
diff
changeset
|
1060 fp.close() |
8315
c8493310ad9b
revlog: use index to find index size
Matt Mackall <mpm@selenic.com>
parents:
8314
diff
changeset
|
1061 |
2073 | 1062 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
|
1063 try: |
6750
fb42030d79d6
add __len__ and __iter__ methods to repo and revlog
Matt Mackall <mpm@selenic.com>
parents:
6703
diff
changeset
|
1064 for r in self: |
8650
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Matt Mackall <mpm@selenic.com>
parents:
8643
diff
changeset
|
1065 df.write(self._chunkraw(r, r)) |
6261
7c8101b5ceb1
revlog: make sure the files are closed after an exception happens
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parents:
6228
diff
changeset
|
1066 finally: |
7c8101b5ceb1
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parents:
6228
diff
changeset
|
1067 df.close() |
7c8101b5ceb1
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parents:
6228
diff
changeset
|
1068 |
2076
d007df6daf8e
Create an atomic opener that does not automatically rename on close
mason@suse.com
parents:
2075
diff
changeset
|
1069 fp = self.opener(self.indexfile, 'w', atomictemp=True) |
2073 | 1070 self.version &= ~(REVLOGNGINLINEDATA) |
4982
9672e3c42b0c
revlog: change _inline from a function to a variable
Matt Mackall <mpm@selenic.com>
parents:
4981
diff
changeset
|
1071 self._inline = False |
6750
fb42030d79d6
add __len__ and __iter__ methods to repo and revlog
Matt Mackall <mpm@selenic.com>
parents:
6703
diff
changeset
|
1072 for i in self: |
5338
f87685355c9c
revlog: fix revlogio.packentry corner case
Alexis S. L. Carvalho <alexis@cecm.usp.br>
parents:
5325
diff
changeset
|
1073 e = self._io.packentry(self.index[i], self.node, self.version, i) |
2073 | 1074 fp.write(e) |
1075 | |
2076
d007df6daf8e
Create an atomic opener that does not automatically rename on close
mason@suse.com
parents:
2075
diff
changeset
|
1076 # if we don't call rename, the temp file will never replace the |
d007df6daf8e
Create an atomic opener that does not automatically rename on close
mason@suse.com
parents:
2075
diff
changeset
|
1077 # real index |
d007df6daf8e
Create an atomic opener that does not automatically rename on close
mason@suse.com
parents:
2075
diff
changeset
|
1078 fp.rename() |
2084 | 1079 |
8650
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parents:
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diff
changeset
|
1080 tr.replace(self.indexfile, trindex * self._io.size) |
ef393d6ec030
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parents:
8643
diff
changeset
|
1081 self._chunkclear() |
2073 | 1082 |
4981
e7131935fbb3
revlog: simplify addrevision
Matt Mackall <mpm@selenic.com>
parents:
4980
diff
changeset
|
1083 def addrevision(self, text, transaction, link, p1, p2, d=None): |
1083 | 1084 """add a revision to the log |
1085 | |
1086 text - the revision data to add | |
1087 transaction - the transaction object used for rollback | |
1088 link - the linkrev data to add | |
1089 p1, p2 - the parent nodeids of the revision | |
1090 d - an optional precomputed delta | |
1091 """ | |
4981
e7131935fbb3
revlog: simplify addrevision
Matt Mackall <mpm@selenic.com>
parents:
4980
diff
changeset
|
1092 dfh = None |
4982
9672e3c42b0c
revlog: change _inline from a function to a variable
Matt Mackall <mpm@selenic.com>
parents:
4981
diff
changeset
|
1093 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
|
1094 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
|
1095 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
|
1096 try: |
7c8101b5ceb1
revlog: make sure the files are closed after an exception happens
Benoit Boissinot <benoit.boissinot@ens-lyon.org>
parents:
6228
diff
changeset
|
1097 return self._addrevision(text, transaction, link, p1, p2, d, ifh, dfh) |
7c8101b5ceb1
revlog: make sure the files are closed after an exception happens
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parents:
6228
diff
changeset
|
1098 finally: |
7c8101b5ceb1
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Benoit Boissinot <benoit.boissinot@ens-lyon.org>
parents:
6228
diff
changeset
|
1099 if dfh: |
7c8101b5ceb1
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6228
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changeset
|
1100 dfh.close() |
7c8101b5ceb1
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6228
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changeset
|
1101 ifh.close() |
3390
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Alexis S. L. Carvalho <alexis@cecm.usp.br>
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changeset
|
1102 |
a74addddd092
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|
1103 def _addrevision(self, text, transaction, link, p1, p2, d, ifh, dfh): |
0
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|
1104 node = hash(text, p1, p2) |
301 | 1105 if node in self.nodemap: |
1106 return node | |
1107 | |
6750
fb42030d79d6
add __len__ and __iter__ methods to repo and revlog
Matt Mackall <mpm@selenic.com>
parents:
6703
diff
changeset
|
1108 curr = len(self) |
4981
e7131935fbb3
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parents:
4980
diff
changeset
|
1109 prev = curr - 1 |
e7131935fbb3
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parents:
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changeset
|
1110 base = self.base(prev) |
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changeset
|
1111 offset = self.end(prev) |
0
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|
1112 |
4981
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4980
diff
changeset
|
1113 if curr: |
644 | 1114 if not d: |
4981
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revlog: simplify addrevision
Matt Mackall <mpm@selenic.com>
parents:
4980
diff
changeset
|
1115 ptext = self.revision(self.node(prev)) |
4989
1aaed3d69772
revlog: eliminate diff and patches functions
Matt Mackall <mpm@selenic.com>
parents:
4988
diff
changeset
|
1116 d = mdiff.textdiff(ptext, text) |
98 | 1117 data = compress(d) |
1533
3d11f81c9145
Reduce string duplication in compression code
mason@suse.com
parents:
1509
diff
changeset
|
1118 l = len(data[1]) + len(data[0]) |
4981
e7131935fbb3
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4980
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changeset
|
1119 dist = l + offset - self.start(base) |
0
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|
1120 |
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changeset
|
1121 # full versions are inserted when the needed deltas |
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changeset
|
1122 # become comparable to the uncompressed text |
4981
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parents:
4980
diff
changeset
|
1123 if not curr or dist > len(text) * 2: |
0
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diff
changeset
|
1124 data = compress(text) |
1533
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parents:
1509
diff
changeset
|
1125 l = len(data[1]) + len(data[0]) |
4981
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|
1126 base = curr |
0
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Add back links from file revisions to changeset revisions
mpm@selenic.com
parents:
diff
changeset
|
1127 |
4977
6cb30bc4ca32
revlog: parse revlogv0 indexes into v1 internally
Matt Mackall <mpm@selenic.com>
parents:
4976
diff
changeset
|
1128 e = (offset_type(offset, 0), l, len(text), |
6cb30bc4ca32
revlog: parse revlogv0 indexes into v1 internally
Matt Mackall <mpm@selenic.com>
parents:
4976
diff
changeset
|
1129 base, link, self.rev(p1), self.rev(p2), node) |
4979
06abdaf78788
revlog: add a magic null revision to our index
Matt Mackall <mpm@selenic.com>
parents:
4978
diff
changeset
|
1130 self.index.insert(-1, e) |
4981
e7131935fbb3
revlog: simplify addrevision
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|
1131 self.nodemap[node] = curr |
4977
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revlog: parse revlogv0 indexes into v1 internally
Matt Mackall <mpm@selenic.com>
parents:
4976
diff
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|
1132 |
5338
f87685355c9c
revlog: fix revlogio.packentry corner case
Alexis S. L. Carvalho <alexis@cecm.usp.br>
parents:
5325
diff
changeset
|
1133 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
|
1134 if not self._inline: |
2073 | 1135 transaction.add(self.datafile, offset) |
4981
e7131935fbb3
revlog: simplify addrevision
Matt Mackall <mpm@selenic.com>
parents:
4980
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|
1136 transaction.add(self.indexfile, curr * len(entry)) |
2073 | 1137 if data[0]: |
3390
a74addddd092
make revlog.addgroup pass its file handles to addrevision
Alexis S. L. Carvalho <alexis@cecm.usp.br>
parents:
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|
1138 dfh.write(data[0]) |
a74addddd092
make revlog.addgroup pass its file handles to addrevision
Alexis S. L. Carvalho <alexis@cecm.usp.br>
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|
1139 dfh.write(data[1]) |
a74addddd092
make revlog.addgroup pass its file handles to addrevision
Alexis S. L. Carvalho <alexis@cecm.usp.br>
parents:
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|
1140 dfh.flush() |
4981
e7131935fbb3
revlog: simplify addrevision
Matt Mackall <mpm@selenic.com>
parents:
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changeset
|
1141 ifh.write(entry) |
2073 | 1142 else: |
4996
a0d37976cd5b
revlog: avoid some unnecessary seek/tell syscalls
Matt Mackall <mpm@selenic.com>
parents:
4994
diff
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|
1143 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
|
1144 transaction.add(self.indexfile, offset, curr) |
4981
e7131935fbb3
revlog: simplify addrevision
Matt Mackall <mpm@selenic.com>
parents:
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|
1145 ifh.write(entry) |
3390
a74addddd092
make revlog.addgroup pass its file handles to addrevision
Alexis S. L. Carvalho <alexis@cecm.usp.br>
parents:
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|
1146 ifh.write(data[0]) |
a74addddd092
make revlog.addgroup pass its file handles to addrevision
Alexis S. L. Carvalho <alexis@cecm.usp.br>
parents:
3360
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|
1147 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
|
1148 self.checkinlinesize(transaction, ifh) |
2073 | 1149 |
9420
d0db168136dc
manifest/revlog: do not let the revlog cache mutable objects
Benoit Boissinot <benoit.boissinot@ens-lyon.org>
parents:
9029
diff
changeset
|
1150 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
|
1151 self._cache = (node, curr, text) |
0
9117c6561b0b
Add back links from file revisions to changeset revisions
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1152 return node |
9117c6561b0b
Add back links from file revisions to changeset revisions
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|
1153 |
1598
14d1f1868bf6
cleanup of revlog.group when repository is local
Benoit Boissinot <benoit.boissinot@ens-lyon.org>
parents:
1559
diff
changeset
|
1154 def group(self, nodelist, lookup, infocollect=None): |
9437
1c4e4004f3a6
Improve some docstrings relating to changegroups and prepush().
Greg Ward <greg-hg@gerg.ca>
parents:
9420
diff
changeset
|
1155 """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
|
1156 (strings). |
46 | 1157 |
1083 | 1158 Given a list of changeset revs, return a set of deltas and |
1159 metadata corresponding to nodes. the first delta is | |
1160 parent(nodes[0]) -> nodes[0] the receiver is guaranteed to | |
1161 have this parent as it has all history before these | |
1162 changesets. parent is parent[0] | |
1163 """ | |
46 | 1164 |
8634
7659eecd9da2
changegroup: the node list might be an empty generator (fix issue1678)
Benoit Boissinot <benoit.boissinot@ens-lyon.org>
parents:
8624
diff
changeset
|
1165 revs = [self.rev(n) for n in nodelist] |
7659eecd9da2
changegroup: the node list might be an empty generator (fix issue1678)
Benoit Boissinot <benoit.boissinot@ens-lyon.org>
parents:
8624
diff
changeset
|
1166 |
46 | 1167 # if we don't have any revisions touched by these changesets, bail |
8634
7659eecd9da2
changegroup: the node list might be an empty generator (fix issue1678)
Benoit Boissinot <benoit.boissinot@ens-lyon.org>
parents:
8624
diff
changeset
|
1168 if not revs: |
1981
736b6c96bbbc
make incoming work via ssh (issue139); move chunk code into separate module.
Thomas Arendsen Hein <thomas@intevation.de>
parents:
1941
diff
changeset
|
1169 yield changegroup.closechunk() |
192 | 1170 return |
46 | 1171 |
1172 # 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
|
1173 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
|
1174 revs.insert(0, p) |
46 | 1175 |
1176 # build deltas | |
8624
2b3dec0ef3ae
replace xrange(0, n) with xrange(n)
Martin Geisler <mg@lazybytes.net>
parents:
8619
diff
changeset
|
1177 for d in xrange(len(revs) - 1): |
46 | 1178 a, b = revs[d], revs[d + 1] |
1598
14d1f1868bf6
cleanup of revlog.group when repository is local
Benoit Boissinot <benoit.boissinot@ens-lyon.org>
parents:
1559
diff
changeset
|
1179 nb = self.node(b) |
192 | 1180 |
1458
1033892bbb87
This changes the revlog.group and re-implements the localrepo.changeroup
Eric Hopper <hopper@omnifarious.org>
parents:
1457
diff
changeset
|
1181 if infocollect is not None: |
1598
14d1f1868bf6
cleanup of revlog.group when repository is local
Benoit Boissinot <benoit.boissinot@ens-lyon.org>
parents:
1559
diff
changeset
|
1182 infocollect(nb) |
1458
1033892bbb87
This changes the revlog.group and re-implements the localrepo.changeroup
Eric Hopper <hopper@omnifarious.org>
parents:
1457
diff
changeset
|
1183 |
1598
14d1f1868bf6
cleanup of revlog.group when repository is local
Benoit Boissinot <benoit.boissinot@ens-lyon.org>
parents:
1559
diff
changeset
|
1184 p = self.parents(nb) |
14d1f1868bf6
cleanup of revlog.group when repository is local
Benoit Boissinot <benoit.boissinot@ens-lyon.org>
parents:
1559
diff
changeset
|
1185 meta = nb + p[0] + p[1] + lookup(nb) |
5367
7530334bf301
revlog: generate trivial deltas against null revision
Matt Mackall <mpm@selenic.com>
parents:
5338
diff
changeset
|
1186 if a == -1: |
7530334bf301
revlog: generate trivial deltas against null revision
Matt Mackall <mpm@selenic.com>
parents:
5338
diff
changeset
|
1187 d = self.revision(nb) |
7530334bf301
revlog: generate trivial deltas against null revision
Matt Mackall <mpm@selenic.com>
parents:
5338
diff
changeset
|
1188 meta += mdiff.trivialdiffheader(len(d)) |
7530334bf301
revlog: generate trivial deltas against null revision
Matt Mackall <mpm@selenic.com>
parents:
5338
diff
changeset
|
1189 else: |
7530334bf301
revlog: generate trivial deltas against null revision
Matt Mackall <mpm@selenic.com>
parents:
5338
diff
changeset
|
1190 d = self.revdiff(a, b) |
5368
61462e7d62ed
changegroup: avoid large copies
Matt Mackall <mpm@selenic.com>
parents:
5367
diff
changeset
|
1191 yield changegroup.chunkheader(len(meta) + len(d)) |
61462e7d62ed
changegroup: avoid large copies
Matt Mackall <mpm@selenic.com>
parents:
5367
diff
changeset
|
1192 yield meta |
5448
e038738714fd
revlog: avoid large yields in group()
Matt Mackall <mpm@selenic.com>
parents:
5445
diff
changeset
|
1193 if len(d) > 2**20: |
e038738714fd
revlog: avoid large yields in group()
Matt Mackall <mpm@selenic.com>
parents:
5445
diff
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|
1194 pos = 0 |
e038738714fd
revlog: avoid large yields in group()
Matt Mackall <mpm@selenic.com>
parents:
5445
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changeset
|
1195 while pos < len(d): |
e038738714fd
revlog: avoid large yields in group()
Matt Mackall <mpm@selenic.com>
parents:
5445
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changeset
|
1196 pos2 = pos + 2 ** 18 |
e038738714fd
revlog: avoid large yields in group()
Matt Mackall <mpm@selenic.com>
parents:
5445
diff
changeset
|
1197 yield d[pos:pos2] |
e038738714fd
revlog: avoid large yields in group()
Matt Mackall <mpm@selenic.com>
parents:
5445
diff
changeset
|
1198 pos = pos2 |
e038738714fd
revlog: avoid large yields in group()
Matt Mackall <mpm@selenic.com>
parents:
5445
diff
changeset
|
1199 else: |
e038738714fd
revlog: avoid large yields in group()
Matt Mackall <mpm@selenic.com>
parents:
5445
diff
changeset
|
1200 yield d |
46 | 1201 |
1981
736b6c96bbbc
make incoming work via ssh (issue139); move chunk code into separate module.
Thomas Arendsen Hein <thomas@intevation.de>
parents:
1941
diff
changeset
|
1202 yield changegroup.closechunk() |
192 | 1203 |
6647
602f7c1ab954
drop superfluous param from revlog.addgroup()
Peter Arrenbrecht <peter.arrenbrecht@gmail.com>
parents:
6470
diff
changeset
|
1204 def addgroup(self, revs, linkmapper, transaction): |
1083 | 1205 """ |
1206 add a delta group | |
46 | 1207 |
1083 | 1208 given a set of deltas, add them to the revision log. the |
1209 first delta is against its parent, which should be in our | |
1210 log, the rest are against the previous delta. | |
1211 """ | |
1212 | |
1213 #track the base of the current delta log | |
6750
fb42030d79d6
add __len__ and __iter__ methods to repo and revlog
Matt Mackall <mpm@selenic.com>
parents:
6703
diff
changeset
|
1214 r = len(self) |
46 | 1215 t = r - 1 |
2002
4aab906517c6
Calling revlog.addgroup with an empty changegroup now raises RevlogError.
Thomas Arendsen Hein <thomas@intevation.de>
parents:
1981
diff
changeset
|
1216 node = None |
515 | 1217 |
3578
3b4e00cba57a
Define and use nullrev (revision of nullid) instead of -1.
Thomas Arendsen Hein <thomas@intevation.de>
parents:
3508
diff
changeset
|
1218 base = prev = nullrev |
2078
441ea218414e
Fill in the uncompressed size during revlog.addgroup
mason@suse.com
parents:
2077
diff
changeset
|
1219 start = end = textlen = 0 |
46 | 1220 if r: |
1221 end = self.end(t) | |
1222 | |
2072 | 1223 ifh = self.opener(self.indexfile, "a+") |
4996
a0d37976cd5b
revlog: avoid some unnecessary seek/tell syscalls
Matt Mackall <mpm@selenic.com>
parents:
4994
diff
changeset
|
1224 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
|
1225 if self._inline: |
4996
a0d37976cd5b
revlog: avoid some unnecessary seek/tell syscalls
Matt Mackall <mpm@selenic.com>
parents:
4994
diff
changeset
|
1226 transaction.add(self.indexfile, end + isize, r) |
2073 | 1227 dfh = None |
1228 else: | |
4996
a0d37976cd5b
revlog: avoid some unnecessary seek/tell syscalls
Matt Mackall <mpm@selenic.com>
parents:
4994
diff
changeset
|
1229 transaction.add(self.indexfile, isize, r) |
2073 | 1230 transaction.add(self.datafile, end) |
1231 dfh = self.opener(self.datafile, "a") | |
46 | 1232 |
6261
7c8101b5ceb1
revlog: make sure the files are closed after an exception happens
Benoit Boissinot <benoit.boissinot@ens-lyon.org>
parents:
6228
diff
changeset
|
1233 try: |
7c8101b5ceb1
revlog: make sure the files are closed after an exception happens
Benoit Boissinot <benoit.boissinot@ens-lyon.org>
parents:
6228
diff
changeset
|
1234 # 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
|
1235 chain = None |
7c8101b5ceb1
revlog: make sure the files are closed after an exception happens
Benoit Boissinot <benoit.boissinot@ens-lyon.org>
parents:
6228
diff
changeset
|
1236 for chunk in revs: |
7c8101b5ceb1
revlog: make sure the files are closed after an exception happens
Benoit Boissinot <benoit.boissinot@ens-lyon.org>
parents:
6228
diff
changeset
|
1237 node, p1, p2, cs = struct.unpack("20s20s20s20s", chunk[:80]) |
7c8101b5ceb1
revlog: make sure the files are closed after an exception happens
Benoit Boissinot <benoit.boissinot@ens-lyon.org>
parents:
6228
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changeset
|
1238 link = linkmapper(cs) |
7c8101b5ceb1
revlog: make sure the files are closed after an exception happens
Benoit Boissinot <benoit.boissinot@ens-lyon.org>
parents:
6228
diff
changeset
|
1239 if node in self.nodemap: |
7c8101b5ceb1
revlog: make sure the files are closed after an exception happens
Benoit Boissinot <benoit.boissinot@ens-lyon.org>
parents:
6228
diff
changeset
|
1240 # 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>
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6228
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|
1241 chain = node |
7c8101b5ceb1
revlog: make sure the files are closed after an exception happens
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parents:
6228
diff
changeset
|
1242 continue |
7c8101b5ceb1
revlog: make sure the files are closed after an exception happens
Benoit Boissinot <benoit.boissinot@ens-lyon.org>
parents:
6228
diff
changeset
|
1243 delta = buffer(chunk, 80) |
7c8101b5ceb1
revlog: make sure the files are closed after an exception happens
Benoit Boissinot <benoit.boissinot@ens-lyon.org>
parents:
6228
diff
changeset
|
1244 del chunk |
192 | 1245 |
6261
7c8101b5ceb1
revlog: make sure the files are closed after an exception happens
Benoit Boissinot <benoit.boissinot@ens-lyon.org>
parents:
6228
diff
changeset
|
1246 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
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changeset
|
1247 if not p in self.nodemap: |
7c8101b5ceb1
revlog: make sure the files are closed after an exception happens
Benoit Boissinot <benoit.boissinot@ens-lyon.org>
parents:
6228
diff
changeset
|
1248 raise LookupError(p, self.indexfile, _('unknown parent')) |
46 | 1249 |
6261
7c8101b5ceb1
revlog: make sure the files are closed after an exception happens
Benoit Boissinot <benoit.boissinot@ens-lyon.org>
parents:
6228
diff
changeset
|
1250 if not chain: |
7c8101b5ceb1
revlog: make sure the files are closed after an exception happens
Benoit Boissinot <benoit.boissinot@ens-lyon.org>
parents:
6228
diff
changeset
|
1251 # retrieve the parent revision of the delta chain |
7c8101b5ceb1
revlog: make sure the files are closed after an exception happens
Benoit Boissinot <benoit.boissinot@ens-lyon.org>
parents:
6228
diff
changeset
|
1252 chain = p1 |
7c8101b5ceb1
revlog: make sure the files are closed after an exception happens
Benoit Boissinot <benoit.boissinot@ens-lyon.org>
parents:
6228
diff
changeset
|
1253 if not chain in self.nodemap: |
7c8101b5ceb1
revlog: make sure the files are closed after an exception happens
Benoit Boissinot <benoit.boissinot@ens-lyon.org>
parents:
6228
diff
changeset
|
1254 raise LookupError(chain, self.indexfile, _('unknown base')) |
46 | 1255 |
6261
7c8101b5ceb1
revlog: make sure the files are closed after an exception happens
Benoit Boissinot <benoit.boissinot@ens-lyon.org>
parents:
6228
diff
changeset
|
1256 # full versions are inserted when the needed deltas become |
7c8101b5ceb1
revlog: make sure the files are closed after an exception happens
Benoit Boissinot <benoit.boissinot@ens-lyon.org>
parents:
6228
diff
changeset
|
1257 # comparable to the uncompressed text or when the previous |
7c8101b5ceb1
revlog: make sure the files are closed after an exception happens
Benoit Boissinot <benoit.boissinot@ens-lyon.org>
parents:
6228
diff
changeset
|
1258 # version is not the one we have a delta against. We use |
7c8101b5ceb1
revlog: make sure the files are closed after an exception happens
Benoit Boissinot <benoit.boissinot@ens-lyon.org>
parents:
6228
diff
changeset
|
1259 # the size of the previous full rev as a proxy for the |
7c8101b5ceb1
revlog: make sure the files are closed after an exception happens
Benoit Boissinot <benoit.boissinot@ens-lyon.org>
parents:
6228
diff
changeset
|
1260 # current size. |
7c8101b5ceb1
revlog: make sure the files are closed after an exception happens
Benoit Boissinot <benoit.boissinot@ens-lyon.org>
parents:
6228
diff
changeset
|
1261 |
7c8101b5ceb1
revlog: make sure the files are closed after an exception happens
Benoit Boissinot <benoit.boissinot@ens-lyon.org>
parents:
6228
diff
changeset
|
1262 if chain == prev: |
7c8101b5ceb1
revlog: make sure the files are closed after an exception happens
Benoit Boissinot <benoit.boissinot@ens-lyon.org>
parents:
6228
diff
changeset
|
1263 cdelta = compress(delta) |
7c8101b5ceb1
revlog: make sure the files are closed after an exception happens
Benoit Boissinot <benoit.boissinot@ens-lyon.org>
parents:
6228
diff
changeset
|
1264 cdeltalen = len(cdelta[0]) + len(cdelta[1]) |
7c8101b5ceb1
revlog: make sure the files are closed after an exception happens
Benoit Boissinot <benoit.boissinot@ens-lyon.org>
parents:
6228
diff
changeset
|
1265 textlen = mdiff.patchedsize(textlen, delta) |
7c8101b5ceb1
revlog: make sure the files are closed after an exception happens
Benoit Boissinot <benoit.boissinot@ens-lyon.org>
parents:
6228
diff
changeset
|
1266 |
7c8101b5ceb1
revlog: make sure the files are closed after an exception happens
Benoit Boissinot <benoit.boissinot@ens-lyon.org>
parents:
6228
diff
changeset
|
1267 if chain != prev or (end - start + cdeltalen) > textlen * 2: |
7c8101b5ceb1
revlog: make sure the files are closed after an exception happens
Benoit Boissinot <benoit.boissinot@ens-lyon.org>
parents:
6228
diff
changeset
|
1268 # flush our writes here so we can read it in revision |
7c8101b5ceb1
revlog: make sure the files are closed after an exception happens
Benoit Boissinot <benoit.boissinot@ens-lyon.org>
parents:
6228
diff
changeset
|
1269 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
|
1270 dfh.flush() |
7c8101b5ceb1
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Benoit Boissinot <benoit.boissinot@ens-lyon.org>
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|
1271 ifh.flush() |
7c8101b5ceb1
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Benoit Boissinot <benoit.boissinot@ens-lyon.org>
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6228
diff
changeset
|
1272 text = self.revision(chain) |
7c8101b5ceb1
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Benoit Boissinot <benoit.boissinot@ens-lyon.org>
parents:
6228
diff
changeset
|
1273 if len(text) == 0: |
7c8101b5ceb1
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Benoit Boissinot <benoit.boissinot@ens-lyon.org>
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6228
diff
changeset
|
1274 # skip over trivial delta header |
7c8101b5ceb1
revlog: make sure the files are closed after an exception happens
Benoit Boissinot <benoit.boissinot@ens-lyon.org>
parents:
6228
diff
changeset
|
1275 text = buffer(delta, 12) |
7c8101b5ceb1
revlog: make sure the files are closed after an exception happens
Benoit Boissinot <benoit.boissinot@ens-lyon.org>
parents:
6228
diff
changeset
|
1276 else: |
7c8101b5ceb1
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Benoit Boissinot <benoit.boissinot@ens-lyon.org>
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6228
diff
changeset
|
1277 text = mdiff.patches(text, [delta]) |
7c8101b5ceb1
revlog: make sure the files are closed after an exception happens
Benoit Boissinot <benoit.boissinot@ens-lyon.org>
parents:
6228
diff
changeset
|
1278 del delta |
7c8101b5ceb1
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Benoit Boissinot <benoit.boissinot@ens-lyon.org>
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6228
diff
changeset
|
1279 chk = self._addrevision(text, transaction, link, p1, p2, None, |
7c8101b5ceb1
revlog: make sure the files are closed after an exception happens
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parents:
6228
diff
changeset
|
1280 ifh, dfh) |
7c8101b5ceb1
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Benoit Boissinot <benoit.boissinot@ens-lyon.org>
parents:
6228
diff
changeset
|
1281 if not dfh and not self._inline: |
7c8101b5ceb1
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Benoit Boissinot <benoit.boissinot@ens-lyon.org>
parents:
6228
diff
changeset
|
1282 # addrevision switched from inline to conventional |
7c8101b5ceb1
revlog: make sure the files are closed after an exception happens
Benoit Boissinot <benoit.boissinot@ens-lyon.org>
parents:
6228
diff
changeset
|
1283 # reopen the index |
2073 | 1284 dfh = self.opener(self.datafile, "a") |
1285 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
|
1286 if chk != node: |
7c8101b5ceb1
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Benoit Boissinot <benoit.boissinot@ens-lyon.org>
parents:
6228
diff
changeset
|
1287 raise RevlogError(_("consistency error adding group")) |
7c8101b5ceb1
revlog: make sure the files are closed after an exception happens
Benoit Boissinot <benoit.boissinot@ens-lyon.org>
parents:
6228
diff
changeset
|
1288 textlen = len(text) |
2073 | 1289 else: |
6261
7c8101b5ceb1
revlog: make sure the files are closed after an exception happens
Benoit Boissinot <benoit.boissinot@ens-lyon.org>
parents:
6228
diff
changeset
|
1290 e = (offset_type(end, 0), cdeltalen, textlen, base, |
7c8101b5ceb1
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diff
changeset
|
1291 link, self.rev(p1), self.rev(p2), node) |
7c8101b5ceb1
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diff
changeset
|
1292 self.index.insert(-1, e) |
7c8101b5ceb1
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changeset
|
1293 self.nodemap[node] = r |
7c8101b5ceb1
revlog: make sure the files are closed after an exception happens
Benoit Boissinot <benoit.boissinot@ens-lyon.org>
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changeset
|
1294 entry = self._io.packentry(e, self.node, self.version, r) |
7c8101b5ceb1
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diff
changeset
|
1295 if self._inline: |
7c8101b5ceb1
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6228
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changeset
|
1296 ifh.write(entry) |
7c8101b5ceb1
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parents:
6228
diff
changeset
|
1297 ifh.write(cdelta[0]) |
7c8101b5ceb1
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Benoit Boissinot <benoit.boissinot@ens-lyon.org>
parents:
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diff
changeset
|
1298 ifh.write(cdelta[1]) |
7c8101b5ceb1
revlog: make sure the files are closed after an exception happens
Benoit Boissinot <benoit.boissinot@ens-lyon.org>
parents:
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diff
changeset
|
1299 self.checkinlinesize(transaction, ifh) |
7c8101b5ceb1
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parents:
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diff
changeset
|
1300 if not self._inline: |
7c8101b5ceb1
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Benoit Boissinot <benoit.boissinot@ens-lyon.org>
parents:
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diff
changeset
|
1301 dfh = self.opener(self.datafile, "a") |
7c8101b5ceb1
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Benoit Boissinot <benoit.boissinot@ens-lyon.org>
parents:
6228
diff
changeset
|
1302 ifh = self.opener(self.indexfile, "a") |
7c8101b5ceb1
revlog: make sure the files are closed after an exception happens
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parents:
6228
diff
changeset
|
1303 else: |
7c8101b5ceb1
revlog: make sure the files are closed after an exception happens
Benoit Boissinot <benoit.boissinot@ens-lyon.org>
parents:
6228
diff
changeset
|
1304 dfh.write(cdelta[0]) |
7c8101b5ceb1
revlog: make sure the files are closed after an exception happens
Benoit Boissinot <benoit.boissinot@ens-lyon.org>
parents:
6228
diff
changeset
|
1305 dfh.write(cdelta[1]) |
7c8101b5ceb1
revlog: make sure the files are closed after an exception happens
Benoit Boissinot <benoit.boissinot@ens-lyon.org>
parents:
6228
diff
changeset
|
1306 ifh.write(entry) |
46 | 1307 |
6261
7c8101b5ceb1
revlog: make sure the files are closed after an exception happens
Benoit Boissinot <benoit.boissinot@ens-lyon.org>
parents:
6228
diff
changeset
|
1308 t, r, chain, prev = r, r + 1, node, node |
7c8101b5ceb1
revlog: make sure the files are closed after an exception happens
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parents:
6228
diff
changeset
|
1309 base = self.base(t) |
7c8101b5ceb1
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Benoit Boissinot <benoit.boissinot@ens-lyon.org>
parents:
6228
diff
changeset
|
1310 start = self.start(base) |
7c8101b5ceb1
revlog: make sure the files are closed after an exception happens
Benoit Boissinot <benoit.boissinot@ens-lyon.org>
parents:
6228
diff
changeset
|
1311 end = self.end(t) |
7c8101b5ceb1
revlog: make sure the files are closed after an exception happens
Benoit Boissinot <benoit.boissinot@ens-lyon.org>
parents:
6228
diff
changeset
|
1312 finally: |
7c8101b5ceb1
revlog: make sure the files are closed after an exception happens
Benoit Boissinot <benoit.boissinot@ens-lyon.org>
parents:
6228
diff
changeset
|
1313 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
|
1314 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
|
1315 ifh.close() |
46 | 1316 |
1317 return node | |
1493
1a216cb4ee64
verify: add check for mismatch of index and data length
Matt Mackall <mpm@selenic.com>
parents:
1469
diff
changeset
|
1318 |
8073
e8a28556a0a8
strip: make repair.strip transactional to avoid repository corruption
Henrik Stuart <henrik.stuart@edlund.dk>
parents:
8017
diff
changeset
|
1319 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
|
1320 """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
|
1321 |
b9a830fa10f6
simplify revlog.strip interface and callers; add docstring
Alexis S. L. Carvalho <alexis@cecm.usp.br>
parents:
5909
diff
changeset
|
1322 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
|
1323 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
|
1324 |
b9a830fa10f6
simplify revlog.strip interface and callers; add docstring
Alexis S. L. Carvalho <alexis@cecm.usp.br>
parents:
5909
diff
changeset
|
1325 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
|
1326 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
|
1327 strip. |
b9a830fa10f6
simplify revlog.strip interface and callers; add docstring
Alexis S. L. Carvalho <alexis@cecm.usp.br>
parents:
5909
diff
changeset
|
1328 |
b9a830fa10f6
simplify revlog.strip interface and callers; add docstring
Alexis S. L. Carvalho <alexis@cecm.usp.br>
parents:
5909
diff
changeset
|
1329 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
|
1330 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
|
1331 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
|
1332 """ |
6750
fb42030d79d6
add __len__ and __iter__ methods to repo and revlog
Matt Mackall <mpm@selenic.com>
parents:
6703
diff
changeset
|
1333 if len(self) == 0: |
1535
7ae0ce7a3dc4
Add revlog.strip to truncate away revisions.
mason@suse.com
parents:
1533
diff
changeset
|
1334 return |
7ae0ce7a3dc4
Add revlog.strip to truncate away revisions.
mason@suse.com
parents:
1533
diff
changeset
|
1335 |
2072 | 1336 if isinstance(self.index, lazyindex): |
4920
ee983d0dbea8
revlog: privatize some methods
Matt Mackall <mpm@selenic.com>
parents:
4919
diff
changeset
|
1337 self._loadindexmap() |
2072 | 1338 |
6750
fb42030d79d6
add __len__ and __iter__ methods to repo and revlog
Matt Mackall <mpm@selenic.com>
parents:
6703
diff
changeset
|
1339 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
|
1340 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
|
1341 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
|
1342 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
|
1343 return |
1535
7ae0ce7a3dc4
Add revlog.strip to truncate away revisions.
mason@suse.com
parents:
1533
diff
changeset
|
1344 |
7ae0ce7a3dc4
Add revlog.strip to truncate away revisions.
mason@suse.com
parents:
1533
diff
changeset
|
1345 # first truncate the files on disk |
7ae0ce7a3dc4
Add revlog.strip to truncate away revisions.
mason@suse.com
parents:
1533
diff
changeset
|
1346 end = self.start(rev) |
4982
9672e3c42b0c
revlog: change _inline from a function to a variable
Matt Mackall <mpm@selenic.com>
parents:
4981
diff
changeset
|
1347 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
|
1348 transaction.add(self.datafile, end) |
4977
6cb30bc4ca32
revlog: parse revlogv0 indexes into v1 internally
Matt Mackall <mpm@selenic.com>
parents:
4976
diff
changeset
|
1349 end = rev * self._io.size |
2073 | 1350 else: |
4977
6cb30bc4ca32
revlog: parse revlogv0 indexes into v1 internally
Matt Mackall <mpm@selenic.com>
parents:
4976
diff
changeset
|
1351 end += rev * self._io.size |
2072 | 1352 |
8073
e8a28556a0a8
strip: make repair.strip transactional to avoid repository corruption
Henrik Stuart <henrik.stuart@edlund.dk>
parents:
8017
diff
changeset
|
1353 transaction.add(self.indexfile, end) |
1535
7ae0ce7a3dc4
Add revlog.strip to truncate away revisions.
mason@suse.com
parents:
1533
diff
changeset
|
1354 |
7ae0ce7a3dc4
Add revlog.strip to truncate away revisions.
mason@suse.com
parents:
1533
diff
changeset
|
1355 # then reset internal state in memory to forget those revisions |
4984 | 1356 self._cache = None |
8650
ef393d6ec030
revlog: refactor chunk cache interface again
Matt Mackall <mpm@selenic.com>
parents:
8643
diff
changeset
|
1357 self._chunkclear() |
6750
fb42030d79d6
add __len__ and __iter__ methods to repo and revlog
Matt Mackall <mpm@selenic.com>
parents:
6703
diff
changeset
|
1358 for x in xrange(rev, len(self)): |
2072 | 1359 del self.nodemap[self.node(x)] |
1535
7ae0ce7a3dc4
Add revlog.strip to truncate away revisions.
mason@suse.com
parents:
1533
diff
changeset
|
1360 |
4979
06abdaf78788
revlog: add a magic null revision to our index
Matt Mackall <mpm@selenic.com>
parents:
4978
diff
changeset
|
1361 del self.index[rev:-1] |
1535
7ae0ce7a3dc4
Add revlog.strip to truncate away revisions.
mason@suse.com
parents:
1533
diff
changeset
|
1362 |
1493
1a216cb4ee64
verify: add check for mismatch of index and data length
Matt Mackall <mpm@selenic.com>
parents:
1469
diff
changeset
|
1363 def checksize(self): |
1a216cb4ee64
verify: add check for mismatch of index and data length
Matt Mackall <mpm@selenic.com>
parents:
1469
diff
changeset
|
1364 expected = 0 |
6750
fb42030d79d6
add __len__ and __iter__ methods to repo and revlog
Matt Mackall <mpm@selenic.com>
parents:
6703
diff
changeset
|
1365 if len(self): |
fb42030d79d6
add __len__ and __iter__ methods to repo and revlog
Matt Mackall <mpm@selenic.com>
parents:
6703
diff
changeset
|
1366 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
|
1367 |
1494
249ca10d37f4
Handle empty logs in repo.checksize
Matt Mackall <mpm@selenic.com>
parents:
1493
diff
changeset
|
1368 try: |
249ca10d37f4
Handle empty logs in repo.checksize
Matt Mackall <mpm@selenic.com>
parents:
1493
diff
changeset
|
1369 f = self.opener(self.datafile) |
249ca10d37f4
Handle empty logs in repo.checksize
Matt Mackall <mpm@selenic.com>
parents:
1493
diff
changeset
|
1370 f.seek(0, 2) |
249ca10d37f4
Handle empty logs in repo.checksize
Matt Mackall <mpm@selenic.com>
parents:
1493
diff
changeset
|
1371 actual = f.tell() |
1667
daff3ef0de8d
verify: notice extra data in indices
Matt Mackall <mpm@selenic.com>
parents:
1660
diff
changeset
|
1372 dd = actual - expected |
1494
249ca10d37f4
Handle empty logs in repo.checksize
Matt Mackall <mpm@selenic.com>
parents:
1493
diff
changeset
|
1373 except IOError, inst: |
1667
daff3ef0de8d
verify: notice extra data in indices
Matt Mackall <mpm@selenic.com>
parents:
1660
diff
changeset
|
1374 if inst.errno != errno.ENOENT: |
daff3ef0de8d
verify: notice extra data in indices
Matt Mackall <mpm@selenic.com>
parents:
1660
diff
changeset
|
1375 raise |
daff3ef0de8d
verify: notice extra data in indices
Matt Mackall <mpm@selenic.com>
parents:
1660
diff
changeset
|
1376 dd = 0 |
daff3ef0de8d
verify: notice extra data in indices
Matt Mackall <mpm@selenic.com>
parents:
1660
diff
changeset
|
1377 |
daff3ef0de8d
verify: notice extra data in indices
Matt Mackall <mpm@selenic.com>
parents:
1660
diff
changeset
|
1378 try: |
daff3ef0de8d
verify: notice extra data in indices
Matt Mackall <mpm@selenic.com>
parents:
1660
diff
changeset
|
1379 f = self.opener(self.indexfile) |
daff3ef0de8d
verify: notice extra data in indices
Matt Mackall <mpm@selenic.com>
parents:
1660
diff
changeset
|
1380 f.seek(0, 2) |
daff3ef0de8d
verify: notice extra data in indices
Matt Mackall <mpm@selenic.com>
parents:
1660
diff
changeset
|
1381 actual = f.tell() |
4977
6cb30bc4ca32
revlog: parse revlogv0 indexes into v1 internally
Matt Mackall <mpm@selenic.com>
parents:
4976
diff
changeset
|
1382 s = self._io.size |
9029
0001e49f1c11
compat: use // for integer division
Alejandro Santos <alejolp@alejolp.com>
parents:
8658
diff
changeset
|
1383 i = max(0, actual // s) |
1667
daff3ef0de8d
verify: notice extra data in indices
Matt Mackall <mpm@selenic.com>
parents:
1660
diff
changeset
|
1384 di = actual - (i * s) |
4982
9672e3c42b0c
revlog: change _inline from a function to a variable
Matt Mackall <mpm@selenic.com>
parents:
4981
diff
changeset
|
1385 if self._inline: |
2073 | 1386 databytes = 0 |
6750
fb42030d79d6
add __len__ and __iter__ methods to repo and revlog
Matt Mackall <mpm@selenic.com>
parents:
6703
diff
changeset
|
1387 for r in self: |
5312
fb070713ff36
revlog: more robust for damaged indexes
Matt Mackall <mpm@selenic.com>
parents:
5007
diff
changeset
|
1388 databytes += max(0, self.length(r)) |
2073 | 1389 dd = 0 |
6750
fb42030d79d6
add __len__ and __iter__ methods to repo and revlog
Matt Mackall <mpm@selenic.com>
parents:
6703
diff
changeset
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1390 di = actual - len(self) * s - databytes |
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parents:
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1391 except IOError, inst: |
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1392 if inst.errno != errno.ENOENT: |
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parents:
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1393 raise |
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1394 di = 0 |
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parents:
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1395 |
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1396 return (dd, di) |
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revlog: add files method
Adrian Buehlmann <adrian@cadifra.com>
parents:
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1397 |
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parents:
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1398 def files(self): |
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1399 res = [self.indexfile] |
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1400 if not self._inline: |
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1401 res.append(self.datafile) |
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1402 return res |