Mercurial > hg
annotate mercurial/bundlerepo.py @ 26774:04ab2348efd1
parsers: correct type of temporary variables for dirstate tuple fields
These fields are defined as int. This eliminates the following warning
spotted by CC=clang CFLAGS='-Wall -Wextra -Wno-missing-field-initializers
-Wno-unused-parameter -Wshorten-64-to-32':
mercurial/parsers.c:625:29: warning: comparison of integers of different
signs: 'uint32_t' (aka 'unsigned int') and 'int' [-Wsign-compare]
if (state == 'n' && mtime == now) {
author | Yuya Nishihara <yuya@tcha.org> |
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date | Sat, 17 Oct 2015 23:14:13 +0900 |
parents | 56b2bcea2529 |
children | 7cac6ee41be7 |
rev | line source |
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1 # bundlerepo.py - repository class for viewing uncompressed bundles |
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2 # |
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3 # Copyright 2006, 2007 Benoit Boissinot <bboissin@gmail.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 """Repository class for viewing uncompressed bundles. |
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9 |
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10 This provides a read-only repository interface to bundles as if they |
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11 were part of the actual repository. |
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12 """ |
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13 |
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14 from __future__ import absolute_import |
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15 |
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16 import os |
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17 import shutil |
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18 import tempfile |
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19 |
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20 from .i18n import _ |
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21 from .node import nullid |
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22 |
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23 from . import ( |
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24 bundle2, |
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25 changegroup, |
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26 changelog, |
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27 cmdutil, |
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28 discovery, |
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29 error, |
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30 exchange, |
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31 filelog, |
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32 localrepo, |
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33 manifest, |
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34 mdiff, |
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35 pathutil, |
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36 phases, |
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37 revlog, |
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38 scmutil, |
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39 util, |
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40 ) |
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41 |
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42 class bundlerevlog(revlog.revlog): |
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43 def __init__(self, opener, indexfile, bundle, linkmapper): |
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44 # How it works: |
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45 # To retrieve a revision, we need to know the offset of the revision in |
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46 # the bundle (an unbundle object). We store this offset in the index |
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47 # (start). The base of the delta is stored in the base field. |
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48 # |
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49 # To differentiate a rev in the bundle from a rev in the revlog, we |
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50 # check revision against repotiprev. |
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51 opener = scmutil.readonlyvfs(opener) |
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52 revlog.revlog.__init__(self, opener, indexfile) |
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53 self.bundle = bundle |
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54 n = len(self) |
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55 self.repotiprev = n - 1 |
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56 chain = None |
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57 self.bundlerevs = set() # used by 'bundle()' revset expression |
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58 while True: |
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59 chunkdata = bundle.deltachunk(chain) |
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60 if not chunkdata: |
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61 break |
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62 node = chunkdata['node'] |
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63 p1 = chunkdata['p1'] |
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64 p2 = chunkdata['p2'] |
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65 cs = chunkdata['cs'] |
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66 deltabase = chunkdata['deltabase'] |
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67 delta = chunkdata['delta'] |
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68 |
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69 size = len(delta) |
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70 start = bundle.tell() - size |
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71 |
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72 link = linkmapper(cs) |
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73 if node in self.nodemap: |
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74 # this can happen if two branches make the same change |
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75 chain = node |
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76 self.bundlerevs.add(self.nodemap[node]) |
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77 continue |
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78 |
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79 for p in (p1, p2): |
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80 if p not in self.nodemap: |
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81 raise error.LookupError(p, self.indexfile, |
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83 |
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84 if deltabase not in self.nodemap: |
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85 raise LookupError(deltabase, self.indexfile, |
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86 _('unknown delta base')) |
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87 |
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88 baserev = self.rev(deltabase) |
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89 # start, size, full unc. size, base (unused), link, p1, p2, node |
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90 e = (revlog.offset_type(start, 0), size, -1, baserev, link, |
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91 self.rev(p1), self.rev(p2), node) |
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92 self.index.insert(-1, e) |
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93 self.nodemap[node] = n |
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94 self.bundlerevs.add(n) |
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95 chain = node |
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96 n += 1 |
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97 |
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98 def _chunk(self, rev): |
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99 # Warning: in case of bundle, the diff is against what we stored as |
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100 # delta base, not against rev - 1 |
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101 # XXX: could use some caching |
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102 if rev <= self.repotiprev: |
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103 return revlog.revlog._chunk(self, rev) |
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104 self.bundle.seek(self.start(rev)) |
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105 return self.bundle.read(self.length(rev)) |
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106 |
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107 def revdiff(self, rev1, rev2): |
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108 """return or calculate a delta between two revisions""" |
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109 if rev1 > self.repotiprev and rev2 > self.repotiprev: |
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110 # hot path for bundle |
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111 revb = self.index[rev2][3] |
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112 if revb == rev1: |
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113 return self._chunk(rev2) |
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114 elif rev1 <= self.repotiprev and rev2 <= self.repotiprev: |
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115 return revlog.revlog.revdiff(self, rev1, rev2) |
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116 |
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117 return mdiff.textdiff(self.revision(self.node(rev1)), |
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118 self.revision(self.node(rev2))) |
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119 |
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120 def revision(self, nodeorrev): |
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121 """return an uncompressed revision of a given node or revision |
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122 number. |
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123 """ |
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124 if isinstance(nodeorrev, int): |
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125 rev = nodeorrev |
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126 node = self.node(rev) |
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127 else: |
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128 node = nodeorrev |
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129 rev = self.rev(node) |
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130 |
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131 if node == nullid: |
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132 return "" |
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133 |
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134 text = None |
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135 chain = [] |
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136 iterrev = rev |
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137 # reconstruct the revision if it is from a changegroup |
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138 while iterrev > self.repotiprev: |
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139 if self._cache and self._cache[1] == iterrev: |
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141 break |
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142 chain.append(iterrev) |
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143 iterrev = self.index[iterrev][3] |
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144 if text is None: |
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145 text = self.baserevision(iterrev) |
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146 |
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147 while chain: |
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148 delta = self._chunk(chain.pop()) |
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149 text = mdiff.patches(text, [delta]) |
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150 |
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151 self._checkhash(text, node, rev) |
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152 self._cache = (node, rev, text) |
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153 return text |
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154 |
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155 def baserevision(self, nodeorrev): |
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156 # Revlog subclasses may override 'revision' method to modify format of |
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157 # content retrieved from revlog. To use bundlerevlog with such class one |
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158 # needs to override 'baserevision' and make more specific call here. |
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159 return revlog.revlog.revision(self, nodeorrev) |
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160 |
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161 def addrevision(self, text, transaction, link, p1=None, p2=None, d=None): |
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162 raise NotImplementedError |
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163 def addgroup(self, revs, linkmapper, transaction): |
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164 raise NotImplementedError |
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165 def strip(self, rev, minlink): |
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166 raise NotImplementedError |
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167 def checksize(self): |
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168 raise NotImplementedError |
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169 |
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170 class bundlechangelog(bundlerevlog, changelog.changelog): |
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171 def __init__(self, opener, bundle): |
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172 changelog.changelog.__init__(self, opener) |
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173 linkmapper = lambda x: x |
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174 bundlerevlog.__init__(self, opener, self.indexfile, bundle, |
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175 linkmapper) |
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176 |
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177 def baserevision(self, nodeorrev): |
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178 # Although changelog doesn't override 'revision' method, some extensions |
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179 # may replace this class with another that does. Same story with |
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180 # manifest and filelog classes. |
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181 |
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182 # This bypasses filtering on changelog.node() and rev() because we need |
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183 # revision text of the bundle base even if it is hidden. |
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184 oldfilter = self.filteredrevs |
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185 try: |
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186 self.filteredrevs = () |
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187 return changelog.changelog.revision(self, nodeorrev) |
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188 finally: |
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189 self.filteredrevs = oldfilter |
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190 |
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191 class bundlemanifest(bundlerevlog, manifest.manifest): |
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192 def __init__(self, opener, bundle, linkmapper): |
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193 manifest.manifest.__init__(self, opener) |
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194 bundlerevlog.__init__(self, opener, self.indexfile, bundle, |
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195 linkmapper) |
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196 |
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197 def baserevision(self, nodeorrev): |
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198 node = nodeorrev |
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199 if isinstance(node, int): |
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200 node = self.node(node) |
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201 |
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202 if node in self._mancache: |
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203 result = self._mancache[node][0].text() |
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204 else: |
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205 result = manifest.manifest.revision(self, nodeorrev) |
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206 return result |
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207 |
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208 class bundlefilelog(bundlerevlog, filelog.filelog): |
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209 def __init__(self, opener, path, bundle, linkmapper): |
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210 filelog.filelog.__init__(self, opener, path) |
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211 bundlerevlog.__init__(self, opener, self.indexfile, bundle, |
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212 linkmapper) |
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213 |
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214 def baserevision(self, nodeorrev): |
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215 return filelog.filelog.revision(self, nodeorrev) |
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216 |
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217 class bundlepeer(localrepo.localpeer): |
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218 def canpush(self): |
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219 return False |
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220 |
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221 class bundlephasecache(phases.phasecache): |
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222 def __init__(self, *args, **kwargs): |
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223 super(bundlephasecache, self).__init__(*args, **kwargs) |
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224 if util.safehasattr(self, 'opener'): |
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225 self.opener = scmutil.readonlyvfs(self.opener) |
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226 |
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227 def write(self): |
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228 raise NotImplementedError |
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229 |
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230 def _write(self, fp): |
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231 raise NotImplementedError |
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232 |
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233 def _updateroots(self, phase, newroots, tr): |
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234 self.phaseroots[phase] = newroots |
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235 self.invalidate() |
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236 self.dirty = True |
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237 |
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238 class bundlerepository(localrepo.localrepository): |
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239 def __init__(self, ui, path, bundlename): |
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240 self._tempparent = None |
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241 try: |
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242 localrepo.localrepository.__init__(self, ui, path) |
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244 self._tempparent = tempfile.mkdtemp() |
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245 localrepo.instance(ui, self._tempparent, 1) |
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246 localrepo.localrepository.__init__(self, ui, self._tempparent) |
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247 self.ui.setconfig('phases', 'publish', False, 'bundlerepo') |
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248 |
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249 if path: |
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250 self._url = 'bundle:' + util.expandpath(path) + '+' + bundlename |
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251 else: |
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252 self._url = 'bundle:' + bundlename |
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253 |
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254 self.tempfile = None |
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255 f = util.posixfile(bundlename, "rb") |
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256 self.bundlefile = self.bundle = exchange.readbundle(ui, f, bundlename) |
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257 if self.bundle.compressed(): |
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258 fdtemp, temp = self.vfs.mkstemp(prefix="hg-bundle-", |
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259 suffix=".hg10un") |
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260 self.tempfile = temp |
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261 fptemp = os.fdopen(fdtemp, 'wb') |
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262 |
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263 try: |
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264 fptemp.write("HG10UN") |
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265 while True: |
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266 chunk = self.bundle.read(2**18) |
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267 if not chunk: |
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268 break |
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269 fptemp.write(chunk) |
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270 finally: |
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271 fptemp.close() |
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272 |
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273 f = self.vfs.open(self.tempfile, mode="rb") |
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274 self.bundlefile = self.bundle = exchange.readbundle(ui, f, |
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275 bundlename, |
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276 self.vfs) |
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277 |
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278 if isinstance(self.bundle, bundle2.unbundle20): |
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279 cgparts = [part for part in self.bundle.iterparts() |
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280 if (part.type == 'changegroup') |
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281 and (part.params.get('version', '01') |
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282 in changegroup.packermap)] |
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283 |
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284 if not cgparts: |
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285 raise error.Abort('No changegroups found') |
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286 version = cgparts[0].params.get('version', '01') |
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287 cgparts = [p for p in cgparts |
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288 if p.params.get('version', '01') == version] |
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289 if len(cgparts) > 1: |
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290 raise NotImplementedError("Can't process multiple changegroups") |
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291 part = cgparts[0] |
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292 |
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293 part.seek(0) |
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294 self.bundle = changegroup.packermap[version][1](part, 'UN') |
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295 |
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296 # dict with the mapping 'filename' -> position in the bundle |
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297 self.bundlefilespos = {} |
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299 self.firstnewrev = self.changelog.repotiprev + 1 |
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300 phases.retractboundary(self, None, phases.draft, |
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301 [ctx.node() for ctx in self[self.firstnewrev:]]) |
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302 |
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303 @localrepo.unfilteredpropertycache |
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304 def _phasecache(self): |
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305 return bundlephasecache(self, self._phasedefaults) |
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306 |
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307 @localrepo.unfilteredpropertycache |
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308 def changelog(self): |
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309 # consume the header if it exists |
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310 self.bundle.changelogheader() |
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311 c = bundlechangelog(self.svfs, self.bundle) |
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312 self.manstart = self.bundle.tell() |
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313 return c |
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314 |
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315 @localrepo.unfilteredpropertycache |
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316 def manifest(self): |
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317 self.bundle.seek(self.manstart) |
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318 # consume the header if it exists |
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319 self.bundle.manifestheader() |
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320 m = bundlemanifest(self.svfs, self.bundle, self.changelog.rev) |
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321 self.filestart = self.bundle.tell() |
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322 return m |
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323 |
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324 @localrepo.unfilteredpropertycache |
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325 def manstart(self): |
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326 self.changelog |
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327 return self.manstart |
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328 |
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329 @localrepo.unfilteredpropertycache |
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330 def filestart(self): |
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331 self.manifest |
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332 return self.filestart |
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333 |
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334 def url(self): |
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335 return self._url |
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336 |
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337 def file(self, f): |
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339 self.bundle.seek(self.filestart) |
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340 while True: |
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341 chunkdata = self.bundle.filelogheader() |
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342 if not chunkdata: |
5262 | 343 break |
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344 fname = chunkdata['filename'] |
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345 self.bundlefilespos[fname] = self.bundle.tell() |
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346 while True: |
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347 c = self.bundle.deltachunk(None) |
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348 if not c: |
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349 break |
5262 | 350 |
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351 if f in self.bundlefilespos: |
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352 self.bundle.seek(self.bundlefilespos[f]) |
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353 return bundlefilelog(self.svfs, f, self.bundle, self.changelog.rev) |
1942
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354 else: |
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355 return filelog.filelog(self.svfs, f) |
1942
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356 |
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357 def close(self): |
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358 """Close assigned bundle file immediately.""" |
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359 self.bundlefile.close() |
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360 if self.tempfile is not None: |
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361 self.vfs.unlink(self.tempfile) |
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362 if self._tempparent: |
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363 shutil.rmtree(self._tempparent, True) |
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364 |
6315 | 365 def cancopy(self): |
366 return False | |
367 | |
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368 def peer(self): |
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369 return bundlepeer(self) |
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370 |
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371 def getcwd(self): |
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372 return os.getcwd() # always outside the repo |
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373 |
15597
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374 |
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375 def instance(ui, path, create): |
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376 if create: |
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377 raise error.Abort(_('cannot create new bundle repository')) |
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378 # internal config: bundle.mainreporoot |
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379 parentpath = ui.config("bundle", "mainreporoot", "") |
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380 if not parentpath: |
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381 # try to find the correct path to the working directory repo |
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382 parentpath = cmdutil.findrepo(os.getcwd()) |
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383 if parentpath is None: |
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384 parentpath = '' |
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385 if parentpath: |
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386 # Try to make the full path relative so we get a nice, short URL. |
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387 # In particular, we don't want temp dir names in test outputs. |
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388 cwd = os.getcwd() |
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389 if parentpath == cwd: |
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390 parentpath = '' |
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391 else: |
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392 cwd = pathutil.normasprefix(cwd) |
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393 if parentpath.startswith(cwd): |
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394 parentpath = parentpath[len(cwd):] |
14076
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395 u = util.url(path) |
13826
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396 path = u.localpath() |
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397 if u.scheme == 'bundle': |
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398 s = path.split("+", 1) |
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399 if len(s) == 1: |
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400 repopath, bundlename = parentpath, s[0] |
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401 else: |
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402 repopath, bundlename = s |
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403 else: |
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404 repopath, bundlename = parentpath, path |
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405 return bundlerepository(ui, repopath, bundlename) |
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406 |
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407 class bundletransactionmanager(object): |
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408 def transaction(self): |
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409 return None |
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410 |
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411 def close(self): |
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412 raise NotImplementedError |
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413 |
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414 def release(self): |
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415 raise NotImplementedError |
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|
416 |
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417 def getremotechanges(ui, repo, other, onlyheads=None, bundlename=None, |
14073
72c84f24b420
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|
418 force=False): |
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419 '''obtains a bundle of changes incoming from other |
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420 |
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421 "onlyheads" restricts the returned changes to those reachable from the |
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422 specified heads. |
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423 "bundlename", if given, stores the bundle to this file path permanently; |
14190
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424 otherwise it's stored to a temp file and gets deleted again when you call |
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425 the returned "cleanupfn". |
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426 "force" indicates whether to proceed on unrelated repos. |
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427 |
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428 Returns a tuple (local, csets, cleanupfn): |
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429 |
16683 | 430 "local" is a local repo from which to obtain the actual incoming |
431 changesets; it is a bundlerepo for the obtained bundle when the | |
432 original "other" is remote. | |
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433 "csets" lists the incoming changeset node ids. |
16683 | 434 "cleanupfn" must be called without arguments when you're done processing |
435 the changes; it closes both the original "other" and the one returned | |
436 here. | |
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437 ''' |
16683 | 438 tmp = discovery.findcommonincoming(repo, other, heads=onlyheads, |
439 force=force) | |
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440 common, incoming, rheads = tmp |
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441 if not incoming: |
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442 try: |
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443 if bundlename: |
21694
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|
444 os.unlink(bundlename) |
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97ed99d1f419
eliminate various naked except clauses
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445 except OSError: |
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|
446 pass |
18138
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|
447 return repo, [], other.close |
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448 |
22182
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449 commonset = set(common) |
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450 rheads = [x for x in rheads if x not in commonset] |
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451 |
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452 bundle = None |
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|
453 bundlerepo = None |
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454 localrepo = other.local() |
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455 if bundlename or not localrepo: |
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456 # create a bundle (uncompressed if other repo is not local) |
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457 |
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458 canbundle2 = (ui.configbool('experimental', 'bundle2-exp', True) |
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459 and other.capable('getbundle') |
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460 and other.capable('bundle2')) |
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461 if canbundle2: |
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462 kwargs = {} |
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463 kwargs['common'] = common |
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464 kwargs['heads'] = rheads |
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465 kwargs['bundlecaps'] = exchange.caps20to10(repo) |
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466 kwargs['cg'] = True |
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467 b2 = other.getbundle('incoming', **kwargs) |
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468 fname = bundle = changegroup.writechunks(ui, b2._forwardchunks(), |
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469 bundlename) |
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470 else: |
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471 if other.capable('getbundle'): |
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472 cg = other.getbundle('incoming', common=common, heads=rheads) |
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473 elif onlyheads is None and not other.capable('changegroupsubset'): |
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474 # compat with older servers when pulling all remote heads |
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475 cg = other.changegroup(incoming, "incoming") |
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476 rheads = None |
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477 else: |
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478 cg = other.changegroupsubset(incoming, rheads, 'incoming') |
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479 if localrepo: |
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480 bundletype = "HG10BZ" |
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481 else: |
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482 bundletype = "HG10UN" |
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483 fname = bundle = changegroup.writebundle(ui, cg, bundlename, |
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484 bundletype) |
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485 # keep written bundle? |
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486 if bundlename: |
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487 bundle = None |
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488 if not localrepo: |
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489 # use the created uncompressed bundlerepo |
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490 localrepo = bundlerepo = bundlerepository(repo.baseui, repo.root, |
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491 fname) |
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492 # this repo contains local and other now, so filter out local again |
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493 common = repo.heads() |
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494 if localrepo: |
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495 # Part of common may be remotely filtered |
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496 # So use an unfiltered version |
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497 # The discovery process probably need cleanup to avoid that |
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498 localrepo = localrepo.unfiltered() |
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499 |
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500 csets = localrepo.changelog.findmissing(common, rheads) |
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501 |
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502 if bundlerepo: |
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503 reponodes = [ctx.node() for ctx in bundlerepo[bundlerepo.firstnewrev:]] |
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504 remotephases = other.listkeys('phases') |
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505 |
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506 pullop = exchange.pulloperation(bundlerepo, other, heads=reponodes) |
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507 pullop.trmanager = bundletransactionmanager() |
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508 exchange._pullapplyphases(pullop, remotephases) |
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509 |
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510 def cleanup(): |
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511 if bundlerepo: |
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512 bundlerepo.close() |
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513 if bundle: |
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514 os.unlink(bundle) |
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515 other.close() |
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516 |
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517 return (localrepo, csets, cleanup) |