Mercurial > hg
annotate mercurial/bundlerepo.py @ 23167:a3c2d9211294 stable
templater: don't overwrite the keyword mapping in runsymbol() (issue4362)
This keyword remapping was introduced in e06e9fd2d99f as part of converting
generator based iterators into list based iterators, mentioning "undesired
behavior in template" when a generator is exhausted, but doesn't say what and
introduces no tests.
The problem with the remapping was that it corrupted the output for keywords
like 'extras', 'file_copies' and 'file_copies_switch' in templates such as:
$ hg log -r 142b5d5ec9cc --template "{file_copies % ' File: {file_copy}\n'}"
File: mercurial/changelog.py (mercurial/hg.py)
File: mercurial/changelog.py (mercurial/hg.py)
File: mercurial/changelog.py (mercurial/hg.py)
File: mercurial/changelog.py (mercurial/hg.py)
File: mercurial/changelog.py (mercurial/hg.py)
File: mercurial/changelog.py (mercurial/hg.py)
File: mercurial/changelog.py (mercurial/hg.py)
File: mercurial/changelog.py (mercurial/hg.py)
What was happening was that in the first call to runtemplate() inside runmap(),
'lm' mapped the keyword (e.g. file_copies) to the appropriate showxxx() method.
On each subsequent call to runtemplate() in that loop however, the keyword was
mapped to a list of the first item's pieces, e.g.:
'file_copy': ['mercurial/changelog.py', ' (', 'mercurial/hg.py', ')']
Therefore, the dict for the second and any subsequent items were not processed
through the corresponding showxxx() method, and the first item's data was
reused.
The 'extras' keyword regressed in de7e6c489412, and 'file_copies' regressed in
0b241d7a8c62 for other reasons. The common thread of things fixed by this seems
to be when a list of dicts are passed to the templatekw._hybrid class.
author | Matt Harbison <matt_harbison@yahoo.com> |
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date | Mon, 03 Nov 2014 12:08:03 -0500 |
parents | 510cafe72004 |
children | b8260abfeb7d |
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 node import nullid |
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14158 | 16 import os, tempfile, shutil |
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17 import changegroup, util, mdiff, discovery, cmdutil, scmutil, exchange |
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18 import localrepo, changelog, manifest, filelog, revlog, error |
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19 |
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20 class bundlerevlog(revlog.revlog): |
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21 def __init__(self, opener, indexfile, bundle, linkmapper): |
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22 # How it works: |
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23 # To retrieve a revision, we need to know the offset of the revision in |
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24 # the bundle (an unbundle object). We store this offset in the index |
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25 # (start). The base of the delta is stored in the base field. |
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26 # |
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27 # To differentiate a rev in the bundle from a rev in the revlog, we |
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28 # check revision against repotiprev. |
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29 opener = scmutil.readonlyvfs(opener) |
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30 revlog.revlog.__init__(self, opener, indexfile) |
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31 self.bundle = bundle |
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32 n = len(self) |
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33 self.repotiprev = n - 1 |
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34 chain = None |
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35 self.bundlerevs = set() # used by 'bundle()' revset expression |
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36 while True: |
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37 chunkdata = bundle.deltachunk(chain) |
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38 if not chunkdata: |
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39 break |
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40 node = chunkdata['node'] |
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41 p1 = chunkdata['p1'] |
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42 p2 = chunkdata['p2'] |
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43 cs = chunkdata['cs'] |
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44 deltabase = chunkdata['deltabase'] |
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45 delta = chunkdata['delta'] |
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46 |
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47 size = len(delta) |
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48 start = bundle.tell() - size |
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49 |
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50 link = linkmapper(cs) |
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51 if node in self.nodemap: |
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52 # this can happen if two branches make the same change |
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53 chain = node |
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54 self.bundlerevs.add(self.nodemap[node]) |
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55 continue |
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56 |
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57 for p in (p1, p2): |
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58 if p not in self.nodemap: |
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59 raise error.LookupError(p, self.indexfile, |
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61 |
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62 if deltabase not in self.nodemap: |
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63 raise LookupError(deltabase, self.indexfile, |
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64 _('unknown delta base')) |
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65 |
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66 baserev = self.rev(deltabase) |
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67 # start, size, full unc. size, base (unused), link, p1, p2, node |
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68 e = (revlog.offset_type(start, 0), size, -1, baserev, link, |
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69 self.rev(p1), self.rev(p2), node) |
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70 self.index.insert(-1, e) |
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71 self.nodemap[node] = n |
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72 self.bundlerevs.add(n) |
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73 chain = node |
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74 n += 1 |
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75 |
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76 def _chunk(self, rev): |
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77 # Warning: in case of bundle, the diff is against what we stored as |
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78 # delta base, not against rev - 1 |
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79 # XXX: could use some caching |
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80 if rev <= self.repotiprev: |
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81 return revlog.revlog._chunk(self, rev) |
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82 self.bundle.seek(self.start(rev)) |
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83 return self.bundle.read(self.length(rev)) |
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84 |
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85 def revdiff(self, rev1, rev2): |
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86 """return or calculate a delta between two revisions""" |
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87 if rev1 > self.repotiprev and rev2 > self.repotiprev: |
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88 # hot path for bundle |
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89 revb = self.index[rev2][3] |
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90 if revb == rev1: |
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91 return self._chunk(rev2) |
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92 elif rev1 <= self.repotiprev and rev2 <= self.repotiprev: |
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93 return revlog.revlog.revdiff(self, rev1, rev2) |
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94 |
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95 return mdiff.textdiff(self.revision(self.node(rev1)), |
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96 self.revision(self.node(rev2))) |
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97 |
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98 def revision(self, nodeorrev): |
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99 """return an uncompressed revision of a given node or revision |
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100 number. |
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101 """ |
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102 if isinstance(nodeorrev, int): |
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103 rev = nodeorrev |
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104 node = self.node(rev) |
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105 else: |
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106 node = nodeorrev |
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107 rev = self.rev(node) |
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108 |
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109 if node == nullid: |
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110 return "" |
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111 |
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112 text = None |
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113 chain = [] |
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114 iterrev = rev |
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115 # reconstruct the revision if it is from a changegroup |
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116 while iterrev > self.repotiprev: |
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117 if self._cache and self._cache[1] == iterrev: |
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119 break |
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120 chain.append(iterrev) |
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121 iterrev = self.index[iterrev][3] |
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122 if text is None: |
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123 text = self.baserevision(iterrev) |
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124 |
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125 while chain: |
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126 delta = self._chunk(chain.pop()) |
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127 text = mdiff.patches(text, [delta]) |
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128 |
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129 self._checkhash(text, node, rev) |
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130 self._cache = (node, rev, text) |
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131 return text |
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132 |
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133 def baserevision(self, nodeorrev): |
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134 # Revlog subclasses may override 'revision' method to modify format of |
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135 # content retrieved from revlog. To use bundlerevlog with such class one |
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136 # needs to override 'baserevision' and make more specific call here. |
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137 return revlog.revlog.revision(self, nodeorrev) |
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138 |
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139 def addrevision(self, text, transaction, link, p1=None, p2=None, d=None): |
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140 raise NotImplementedError |
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141 def addgroup(self, revs, linkmapper, transaction): |
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142 raise NotImplementedError |
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143 def strip(self, rev, minlink): |
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144 raise NotImplementedError |
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145 def checksize(self): |
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146 raise NotImplementedError |
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147 |
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148 class bundlechangelog(bundlerevlog, changelog.changelog): |
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149 def __init__(self, opener, bundle): |
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150 changelog.changelog.__init__(self, opener) |
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151 linkmapper = lambda x: x |
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152 bundlerevlog.__init__(self, opener, self.indexfile, bundle, |
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153 linkmapper) |
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154 |
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155 def baserevision(self, nodeorrev): |
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156 # Although changelog doesn't override 'revision' method, some extensions |
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157 # may replace this class with another that does. Same story with |
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158 # manifest and filelog classes. |
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159 return changelog.changelog.revision(self, nodeorrev) |
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160 |
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161 class bundlemanifest(bundlerevlog, manifest.manifest): |
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162 def __init__(self, opener, bundle, linkmapper): |
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163 manifest.manifest.__init__(self, opener) |
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164 bundlerevlog.__init__(self, opener, self.indexfile, bundle, |
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165 linkmapper) |
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166 |
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167 def baserevision(self, nodeorrev): |
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168 return manifest.manifest.revision(self, nodeorrev) |
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169 |
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170 class bundlefilelog(bundlerevlog, filelog.filelog): |
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171 def __init__(self, opener, path, bundle, linkmapper, repo): |
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172 filelog.filelog.__init__(self, opener, path) |
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173 bundlerevlog.__init__(self, opener, self.indexfile, bundle, |
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174 linkmapper) |
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175 self._repo = repo |
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176 |
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177 def baserevision(self, nodeorrev): |
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178 return filelog.filelog.revision(self, nodeorrev) |
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179 |
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180 def _file(self, f): |
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181 self._repo.file(f) |
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182 |
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183 class bundlepeer(localrepo.localpeer): |
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184 def canpush(self): |
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185 return False |
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186 |
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187 class bundlerepository(localrepo.localrepository): |
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188 def __init__(self, ui, path, bundlename): |
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189 self._tempparent = None |
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190 try: |
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191 localrepo.localrepository.__init__(self, ui, path) |
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193 self._tempparent = tempfile.mkdtemp() |
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194 localrepo.instance(ui, self._tempparent, 1) |
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195 localrepo.localrepository.__init__(self, ui, self._tempparent) |
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196 self.ui.setconfig('phases', 'publish', False, 'bundlerepo') |
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197 |
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198 if path: |
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199 self._url = 'bundle:' + util.expandpath(path) + '+' + bundlename |
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200 else: |
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201 self._url = 'bundle:' + bundlename |
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202 |
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203 self.tempfile = None |
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204 f = util.posixfile(bundlename, "rb") |
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205 self.bundle = exchange.readbundle(ui, f, bundlename) |
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206 if self.bundle.compressed(): |
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207 fdtemp, temp = self.vfs.mkstemp(prefix="hg-bundle-", |
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208 suffix=".hg10un") |
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209 self.tempfile = temp |
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210 fptemp = os.fdopen(fdtemp, 'wb') |
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211 |
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212 try: |
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213 fptemp.write("HG10UN") |
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214 while True: |
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215 chunk = self.bundle.read(2**18) |
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216 if not chunk: |
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217 break |
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218 fptemp.write(chunk) |
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219 finally: |
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220 fptemp.close() |
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221 |
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222 f = self.vfs.open(self.tempfile, mode="rb") |
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223 self.bundle = exchange.readbundle(ui, f, bundlename, self.vfs) |
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224 |
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225 # dict with the mapping 'filename' -> position in the bundle |
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226 self.bundlefilespos = {} |
5262 | 227 |
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228 @localrepo.unfilteredpropertycache |
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229 def changelog(self): |
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230 # consume the header if it exists |
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231 self.bundle.changelogheader() |
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232 c = bundlechangelog(self.sopener, self.bundle) |
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233 self.manstart = self.bundle.tell() |
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234 return c |
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235 |
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236 @localrepo.unfilteredpropertycache |
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237 def manifest(self): |
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238 self.bundle.seek(self.manstart) |
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239 # consume the header if it exists |
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240 self.bundle.manifestheader() |
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241 m = bundlemanifest(self.sopener, self.bundle, self.changelog.rev) |
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242 self.filestart = self.bundle.tell() |
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243 return m |
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244 |
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245 @localrepo.unfilteredpropertycache |
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246 def manstart(self): |
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247 self.changelog |
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248 return self.manstart |
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249 |
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250 @localrepo.unfilteredpropertycache |
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251 def filestart(self): |
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252 self.manifest |
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253 return self.filestart |
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254 |
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255 def url(self): |
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256 return self._url |
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257 |
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258 def file(self, f): |
5262 | 259 if not self.bundlefilespos: |
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260 self.bundle.seek(self.filestart) |
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261 while True: |
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262 chunkdata = self.bundle.filelogheader() |
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263 if not chunkdata: |
5262 | 264 break |
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265 fname = chunkdata['filename'] |
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266 self.bundlefilespos[fname] = self.bundle.tell() |
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267 while True: |
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268 c = self.bundle.deltachunk(None) |
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269 if not c: |
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270 break |
5262 | 271 |
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272 if f in self.bundlefilespos: |
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273 self.bundle.seek(self.bundlefilespos[f]) |
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274 return bundlefilelog(self.sopener, f, self.bundle, |
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275 self.changelog.rev, self) |
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276 else: |
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277 return filelog.filelog(self.sopener, f) |
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278 |
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279 def close(self): |
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280 """Close assigned bundle file immediately.""" |
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281 self.bundle.close() |
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282 if self.tempfile is not None: |
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283 self.vfs.unlink(self.tempfile) |
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284 if self._tempparent: |
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285 shutil.rmtree(self._tempparent, True) |
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286 |
6315 | 287 def cancopy(self): |
288 return False | |
289 | |
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290 def peer(self): |
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291 return bundlepeer(self) |
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292 |
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293 def getcwd(self): |
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294 return os.getcwd() # always outside the repo |
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295 |
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296 |
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297 def instance(ui, path, create): |
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298 if create: |
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299 raise util.Abort(_('cannot create new bundle repository')) |
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300 parentpath = ui.config("bundle", "mainreporoot", "") |
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301 if not parentpath: |
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302 # try to find the correct path to the working directory repo |
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303 parentpath = cmdutil.findrepo(os.getcwd()) |
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304 if parentpath is None: |
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305 parentpath = '' |
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306 if parentpath: |
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307 # Try to make the full path relative so we get a nice, short URL. |
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308 # In particular, we don't want temp dir names in test outputs. |
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309 cwd = os.getcwd() |
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310 if parentpath == cwd: |
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311 parentpath = '' |
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312 else: |
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313 cwd = os.path.join(cwd,'') |
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314 if parentpath.startswith(cwd): |
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315 parentpath = parentpath[len(cwd):] |
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316 u = util.url(path) |
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317 path = u.localpath() |
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318 if u.scheme == 'bundle': |
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319 s = path.split("+", 1) |
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320 if len(s) == 1: |
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321 repopath, bundlename = parentpath, s[0] |
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322 else: |
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323 repopath, bundlename = s |
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324 else: |
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325 repopath, bundlename = parentpath, path |
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326 return bundlerepository(ui, repopath, bundlename) |
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327 |
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328 def getremotechanges(ui, repo, other, onlyheads=None, bundlename=None, |
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329 force=False): |
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330 '''obtains a bundle of changes incoming from other |
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331 |
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332 "onlyheads" restricts the returned changes to those reachable from the |
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333 specified heads. |
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334 "bundlename", if given, stores the bundle to this file path permanently; |
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335 otherwise it's stored to a temp file and gets deleted again when you call |
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336 the returned "cleanupfn". |
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337 "force" indicates whether to proceed on unrelated repos. |
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338 |
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339 Returns a tuple (local, csets, cleanupfn): |
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340 |
16683 | 341 "local" is a local repo from which to obtain the actual incoming |
342 changesets; it is a bundlerepo for the obtained bundle when the | |
343 original "other" is remote. | |
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344 "csets" lists the incoming changeset node ids. |
16683 | 345 "cleanupfn" must be called without arguments when you're done processing |
346 the changes; it closes both the original "other" and the one returned | |
347 here. | |
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348 ''' |
16683 | 349 tmp = discovery.findcommonincoming(repo, other, heads=onlyheads, |
350 force=force) | |
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351 common, incoming, rheads = tmp |
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352 if not incoming: |
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353 try: |
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354 if bundlename: |
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355 os.unlink(bundlename) |
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356 except OSError: |
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357 pass |
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358 return repo, [], other.close |
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359 |
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360 commonset = set(common) |
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361 rheads = [x for x in rheads if x not in commonset] |
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362 |
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363 bundle = None |
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364 bundlerepo = None |
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365 localrepo = other.local() |
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366 if bundlename or not localrepo: |
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367 # create a bundle (uncompressed if other repo is not local) |
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368 |
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369 if other.capable('getbundle'): |
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370 cg = other.getbundle('incoming', common=common, heads=rheads) |
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371 elif onlyheads is None and not other.capable('changegroupsubset'): |
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372 # compat with older servers when pulling all remote heads |
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373 cg = other.changegroup(incoming, "incoming") |
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374 rheads = None |
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375 else: |
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376 cg = other.changegroupsubset(incoming, rheads, 'incoming') |
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377 bundletype = localrepo and "HG10BZ" or "HG10UN" |
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378 fname = bundle = changegroup.writebundle(cg, bundlename, bundletype) |
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379 # keep written bundle? |
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380 if bundlename: |
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381 bundle = None |
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382 if not localrepo: |
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383 # use the created uncompressed bundlerepo |
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384 localrepo = bundlerepo = bundlerepository(repo.baseui, repo.root, |
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385 fname) |
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386 # this repo contains local and other now, so filter out local again |
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387 common = repo.heads() |
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388 if localrepo: |
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389 # Part of common may be remotely filtered |
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390 # So use an unfiltered version |
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391 # The discovery process probably need cleanup to avoid that |
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392 localrepo = localrepo.unfiltered() |
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393 |
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394 csets = localrepo.changelog.findmissing(common, rheads) |
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395 |
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396 def cleanup(): |
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397 if bundlerepo: |
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398 bundlerepo.close() |
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399 if bundle: |
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400 os.unlink(bundle) |
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401 other.close() |
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402 |
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403 return (localrepo, csets, cleanup) |