Mercurial > hg
annotate mercurial/repair.py @ 26286:4b685712fa45
bookmark: do not crash when active bookmark is forward and --date is used
The logic that decides where to update according to the active bookmark
location (when not on ".") was setting the rev to update to before we process
--date. This lead to --date processing aborting because of duplicated
specification.
We reorder the two pieces of code and add a test for this.
author | Pierre-Yves David <pierre-yves.david@fb.com> |
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date | Thu, 17 Sep 2015 16:08:10 -0700 |
parents | a5f62af29517 |
children | c93f91c1db1c |
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1 # repair.py - functions for repository repair for mercurial |
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2 # |
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3 # Copyright 2005, 2006 Chris Mason <mason@suse.com> |
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4 # Copyright 2007 Matt Mackall |
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5 # |
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6 # This software may be used and distributed according to the terms of the |
10263 | 7 # GNU General Public License version 2 or any later version. |
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8 |
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9 from __future__ import absolute_import |
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10 |
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11 import errno |
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12 |
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13 from .i18n import _ |
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14 from .node import short |
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15 from . import ( |
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16 bundle2, |
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17 changegroup, |
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18 exchange, |
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19 util, |
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20 ) |
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21 |
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22 def _bundle(repo, bases, heads, node, suffix, compress=True): |
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23 """create a bundle with the specified revisions as a backup""" |
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24 usebundle2 = (repo.ui.configbool('experimental', 'bundle2-exp', True) and |
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25 repo.ui.config('experimental', 'strip-bundle2-version')) |
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26 if usebundle2: |
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27 cgversion = repo.ui.config('experimental', 'strip-bundle2-version') |
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28 if cgversion not in changegroup.packermap: |
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29 repo.ui.warn(_('unknown strip-bundle2-version value %r; ' |
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30 'should be one of %r\n') % |
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31 (cgversion, sorted(changegroup.packermap.keys()),)) |
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32 cgversion = '01' |
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33 usebundle2 = False |
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34 else: |
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35 cgversion = '01' |
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36 |
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37 cg = changegroup.changegroupsubset(repo, bases, heads, 'strip', |
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38 version=cgversion) |
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39 backupdir = "strip-backup" |
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40 vfs = repo.vfs |
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41 if not vfs.isdir(backupdir): |
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42 vfs.mkdir(backupdir) |
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43 |
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44 # Include a hash of all the nodes in the filename for uniqueness |
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45 allcommits = repo.set('%ln::%ln', bases, heads) |
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46 allhashes = sorted(c.hex() for c in allcommits) |
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47 totalhash = util.sha1(''.join(allhashes)).hexdigest() |
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48 name = "%s/%s-%s-%s.hg" % (backupdir, short(node), totalhash[:8], suffix) |
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49 |
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50 if usebundle2: |
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51 bundletype = "HG20" |
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52 elif compress: |
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53 bundletype = "HG10BZ" |
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54 else: |
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55 bundletype = "HG10UN" |
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56 return changegroup.writebundle(repo.ui, cg, name, bundletype, vfs) |
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57 |
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58 def _collectfiles(repo, striprev): |
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59 """find out the filelogs affected by the strip""" |
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60 files = set() |
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61 |
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62 for x in xrange(striprev, len(repo)): |
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63 files.update(repo[x].files()) |
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64 |
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65 return sorted(files) |
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66 |
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67 def _collectbrokencsets(repo, files, striprev): |
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68 """return the changesets which will be broken by the truncation""" |
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69 s = set() |
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70 def collectone(revlog): |
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71 _, brokenset = revlog.getstrippoint(striprev) |
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72 s.update([revlog.linkrev(r) for r in brokenset]) |
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73 |
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74 collectone(repo.manifest) |
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75 for fname in files: |
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76 collectone(repo.file(fname)) |
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77 |
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78 return s |
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79 |
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80 def strip(ui, repo, nodelist, backup=True, topic='backup'): |
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81 |
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82 # Simple way to maintain backwards compatibility for this |
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83 # argument. |
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84 if backup in ['none', 'strip']: |
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85 backup = False |
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86 |
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87 repo = repo.unfiltered() |
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88 repo.destroying() |
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89 |
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90 cl = repo.changelog |
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91 # TODO handle undo of merge sets |
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92 if isinstance(nodelist, str): |
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93 nodelist = [nodelist] |
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94 striplist = [cl.rev(node) for node in nodelist] |
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95 striprev = min(striplist) |
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96 |
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97 # Some revisions with rev > striprev may not be descendants of striprev. |
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98 # We have to find these revisions and put them in a bundle, so that |
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99 # we can restore them after the truncations. |
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100 # To create the bundle we use repo.changegroupsubset which requires |
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101 # the list of heads and bases of the set of interesting revisions. |
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102 # (head = revision in the set that has no descendant in the set; |
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103 # base = revision in the set that has no ancestor in the set) |
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104 tostrip = set(striplist) |
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105 for rev in striplist: |
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106 for desc in cl.descendants([rev]): |
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107 tostrip.add(desc) |
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108 |
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109 files = _collectfiles(repo, striprev) |
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110 saverevs = _collectbrokencsets(repo, files, striprev) |
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111 |
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112 # compute heads |
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113 saveheads = set(saverevs) |
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114 for r in xrange(striprev + 1, len(cl)): |
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115 if r not in tostrip: |
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116 saverevs.add(r) |
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117 saveheads.difference_update(cl.parentrevs(r)) |
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118 saveheads.add(r) |
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119 saveheads = [cl.node(r) for r in saveheads] |
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120 |
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121 # compute base nodes |
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122 if saverevs: |
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123 descendants = set(cl.descendants(saverevs)) |
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124 saverevs.difference_update(descendants) |
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125 savebases = [cl.node(r) for r in saverevs] |
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126 stripbases = [cl.node(r) for r in tostrip] |
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127 |
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128 # For a set s, max(parents(s) - s) is the same as max(heads(::s - s)), but |
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129 # is much faster |
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130 newbmtarget = repo.revs('max(parents(%ld) - (%ld))', tostrip, tostrip) |
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131 if newbmtarget: |
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132 newbmtarget = repo[newbmtarget.first()].node() |
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133 else: |
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134 newbmtarget = '.' |
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135 |
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136 bm = repo._bookmarks |
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137 updatebm = [] |
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138 for m in bm: |
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139 rev = repo[bm[m]].rev() |
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140 if rev in tostrip: |
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141 updatebm.append(m) |
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142 |
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143 # create a changegroup for all the branches we need to keep |
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144 backupfile = None |
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145 vfs = repo.vfs |
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146 node = nodelist[-1] |
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147 if backup: |
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148 backupfile = _bundle(repo, stripbases, cl.heads(), node, topic) |
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149 repo.ui.status(_("saved backup bundle to %s\n") % |
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150 vfs.join(backupfile)) |
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151 repo.ui.log("backupbundle", "saved backup bundle to %s\n", |
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152 vfs.join(backupfile)) |
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153 if saveheads or savebases: |
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154 # do not compress partial bundle if we remove it from disk later |
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155 chgrpfile = _bundle(repo, savebases, saveheads, node, 'temp', |
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156 compress=False) |
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157 |
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158 mfst = repo.manifest |
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159 |
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160 curtr = repo.currenttransaction() |
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161 if curtr is not None: |
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162 del curtr # avoid carrying reference to transaction for nothing |
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163 msg = _('programming error: cannot strip from inside a transaction') |
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164 raise util.Abort(msg, hint=_('contact your extension maintainer')) |
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165 |
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166 tr = repo.transaction("strip") |
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167 offset = len(tr.entries) |
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168 |
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169 try: |
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170 tr.startgroup() |
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171 cl.strip(striprev, tr) |
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172 mfst.strip(striprev, tr) |
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173 for fn in files: |
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174 repo.file(fn).strip(striprev, tr) |
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175 tr.endgroup() |
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176 |
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177 try: |
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178 for i in xrange(offset, len(tr.entries)): |
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179 file, troffset, ignore = tr.entries[i] |
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180 repo.svfs(file, 'a').truncate(troffset) |
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181 if troffset == 0: |
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182 repo.store.markremoved(file) |
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183 tr.close() |
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184 finally: |
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185 tr.release() |
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186 |
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187 if saveheads or savebases: |
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188 ui.note(_("adding branch\n")) |
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189 f = vfs.open(chgrpfile, "rb") |
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190 gen = exchange.readbundle(ui, f, chgrpfile, vfs) |
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191 if not repo.ui.verbose: |
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192 # silence internal shuffling chatter |
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193 repo.ui.pushbuffer() |
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194 if isinstance(gen, bundle2.unbundle20): |
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195 tr = repo.transaction('strip') |
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196 tr.hookargs = {'source': 'strip', |
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197 'url': 'bundle:' + vfs.join(chgrpfile)} |
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198 try: |
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199 bundle2.processbundle(repo, gen, lambda: tr) |
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200 tr.close() |
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201 finally: |
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202 tr.release() |
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203 else: |
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204 changegroup.addchangegroup(repo, gen, 'strip', |
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205 'bundle:' + vfs.join(chgrpfile), |
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206 True) |
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207 if not repo.ui.verbose: |
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208 repo.ui.popbuffer() |
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209 f.close() |
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210 |
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211 # remove undo files |
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212 for undovfs, undofile in repo.undofiles(): |
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213 try: |
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214 undovfs.unlink(undofile) |
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215 except OSError as e: |
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216 if e.errno != errno.ENOENT: |
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217 ui.warn(_('error removing %s: %s\n') % |
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218 (undovfs.join(undofile), str(e))) |
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219 |
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220 for m in updatebm: |
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221 bm[m] = repo[newbmtarget].node() |
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222 bm.write() |
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223 except: # re-raises |
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224 if backupfile: |
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225 ui.warn(_("strip failed, full bundle stored in '%s'\n") |
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226 % vfs.join(backupfile)) |
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227 elif saveheads: |
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228 ui.warn(_("strip failed, partial bundle stored in '%s'\n") |
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229 % vfs.join(chgrpfile)) |
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230 raise |
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231 else: |
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232 if saveheads or savebases: |
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233 # Remove partial backup only if there were no exceptions |
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234 vfs.unlink(chgrpfile) |
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235 |
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236 repo.destroyed() |
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237 |
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238 def rebuildfncache(ui, repo): |
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239 """Rebuilds the fncache file from repo history. |
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240 |
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241 Missing entries will be added. Extra entries will be removed. |
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242 """ |
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243 repo = repo.unfiltered() |
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244 |
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245 if 'fncache' not in repo.requirements: |
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246 ui.warn(_('(not rebuilding fncache because repository does not ' |
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247 'support fncache)\n')) |
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248 return |
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249 |
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250 lock = repo.lock() |
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251 try: |
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252 fnc = repo.store.fncache |
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253 # Trigger load of fncache. |
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254 if 'irrelevant' in fnc: |
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255 pass |
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256 |
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257 oldentries = set(fnc.entries) |
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258 newentries = set() |
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259 seenfiles = set() |
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260 |
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261 repolen = len(repo) |
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262 for rev in repo: |
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263 ui.progress(_('changeset'), rev, total=repolen) |
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264 |
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265 ctx = repo[rev] |
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266 for f in ctx.files(): |
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267 # This is to minimize I/O. |
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268 if f in seenfiles: |
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269 continue |
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270 seenfiles.add(f) |
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271 |
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272 i = 'data/%s.i' % f |
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273 d = 'data/%s.d' % f |
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274 |
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275 if repo.store._exists(i): |
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276 newentries.add(i) |
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277 if repo.store._exists(d): |
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278 newentries.add(d) |
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279 |
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280 ui.progress(_('changeset'), None) |
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281 |
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282 addcount = len(newentries - oldentries) |
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283 removecount = len(oldentries - newentries) |
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284 for p in sorted(oldentries - newentries): |
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285 ui.write(_('removing %s\n') % p) |
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286 for p in sorted(newentries - oldentries): |
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287 ui.write(_('adding %s\n') % p) |
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288 |
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289 if addcount or removecount: |
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290 ui.write(_('%d items added, %d removed from fncache\n') % |
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291 (addcount, removecount)) |
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292 fnc.entries = newentries |
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293 fnc._dirty = True |
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294 |
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295 tr = repo.transaction('fncache') |
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296 try: |
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297 fnc.write(tr) |
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298 tr.close() |
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299 finally: |
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300 tr.release() |
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301 else: |
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302 ui.write(_('fncache already up to date\n')) |
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303 finally: |
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304 lock.release() |
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305 |