Mercurial > hg
annotate hgext/share.py @ 33453:f6b7617a85bb
phases: add a 'registernew' method to set new phases
This new function will be used by code that adds new changesets. It ajusts the
phase boundary to make sure added changesets are at least in their target
phase (they end up in an higher phase if their parents are in a higher phase).
Having a dedicated function also simplify the phases tracking. All the new
nodes are passed as argument, so we know that all of them needs to have their
new phase registered. We also know that no other nodes will be affected, so no
extra computation are needed.
This function differ from 'retractboundary' where some nodes might change
phase while some other might not. It can also affect nodes not passed as
parameters.
These simplification also apply to the computation itself. For now we use
'_retractboundary' there by convenience, but we may introduces simpler code
later.
While registering new revisions, we still need to check the actual phases of
the added node because it might be higher than the target phase (eg: target is
draft but parent is secret).
We will migrate users over the next changesets.
author | Boris Feld <boris.feld@octobus.net> |
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date | Tue, 11 Jul 2017 03:47:25 +0200 |
parents | 24c0a9a7fa86 |
children | 3325c7dcabaa |
rev | line source |
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1 # Copyright 2006, 2007 Matt Mackall <mpm@selenic.com> |
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2 # |
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3 # This software may be used and distributed according to the terms of the |
10263 | 4 # GNU General Public License version 2 or any later version. |
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5 |
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6 '''share a common history between several working directories |
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7 |
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8 Automatic Pooled Storage for Clones |
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9 ----------------------------------- |
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10 |
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11 When this extension is active, :hg:`clone` can be configured to |
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12 automatically share/pool storage across multiple clones. This |
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13 mode effectively converts :hg:`clone` to :hg:`clone` + :hg:`share`. |
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14 The benefit of using this mode is the automatic management of |
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15 store paths and intelligent pooling of related repositories. |
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16 |
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17 The following ``share.`` config options influence this feature: |
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18 |
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19 ``share.pool`` |
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20 Filesystem path where shared repository data will be stored. When |
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21 defined, :hg:`clone` will automatically use shared repository |
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22 storage instead of creating a store inside each clone. |
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23 |
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24 ``share.poolnaming`` |
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25 How directory names in ``share.pool`` are constructed. |
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26 |
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27 "identity" means the name is derived from the first changeset in the |
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28 repository. In this mode, different remotes share storage if their |
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29 root/initial changeset is identical. In this mode, the local shared |
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30 repository is an aggregate of all encountered remote repositories. |
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31 |
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32 "remote" means the name is derived from the source repository's |
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33 path or URL. In this mode, storage is only shared if the path or URL |
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34 requested in the :hg:`clone` command matches exactly to a repository |
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35 that was cloned before. |
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36 |
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37 The default naming mode is "identity." |
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38 ''' |
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39 |
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40 from __future__ import absolute_import |
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41 |
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42 import errno |
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43 from mercurial.i18n import _ |
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44 from mercurial import ( |
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45 bookmarks, |
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46 commands, |
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47 error, |
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48 extensions, |
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49 hg, |
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50 registrar, |
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51 txnutil, |
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52 util, |
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53 ) |
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54 |
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55 repository = hg.repository |
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56 parseurl = hg.parseurl |
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57 |
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58 cmdtable = {} |
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59 command = registrar.command(cmdtable) |
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60 # Note for extension authors: ONLY specify testedwith = 'ships-with-hg-core' for |
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61 # extensions which SHIP WITH MERCURIAL. Non-mainline extensions should |
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62 # be specifying the version(s) of Mercurial they are tested with, or |
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63 # leave the attribute unspecified. |
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64 testedwith = 'ships-with-hg-core' |
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65 |
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66 @command('share', |
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67 [('U', 'noupdate', None, _('do not create a working directory')), |
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68 ('B', 'bookmarks', None, _('also share bookmarks')), |
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69 ('', 'relative', None, _('point to source using a relative path ' |
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70 '(EXPERIMENTAL)')), |
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71 ], |
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72 _('[-U] [-B] SOURCE [DEST]'), |
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73 norepo=True) |
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74 def share(ui, source, dest=None, noupdate=False, bookmarks=False, |
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75 relative=False): |
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76 """create a new shared repository |
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77 |
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78 Initialize a new repository and working directory that shares its |
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79 history (and optionally bookmarks) with another repository. |
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80 |
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82 |
12389 | 83 using rollback or extensions that destroy/modify history (mq, |
84 rebase, etc.) can cause considerable confusion with shared | |
85 clones. In particular, if two shared clones are both updated to | |
86 the same changeset, and one of them destroys that changeset | |
87 with rollback, the other clone will suddenly stop working: all | |
88 operations will fail with "abort: working directory has unknown | |
89 parent". The only known workaround is to use debugsetparents on | |
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90 the broken clone to reset it to a changeset that still exists. |
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91 """ |
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92 |
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93 return hg.share(ui, source, dest=dest, update=not noupdate, |
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94 bookmarks=bookmarks, relative=relative) |
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95 |
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96 @command('unshare', [], '') |
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97 def unshare(ui, repo): |
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98 """convert a shared repository to a normal one |
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99 |
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100 Copy the store data to the repo and remove the sharedpath data. |
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101 """ |
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102 |
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103 if not repo.shared(): |
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104 raise error.Abort(_("this is not a shared repo")) |
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105 |
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106 destlock = lock = None |
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107 lock = repo.lock() |
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108 try: |
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109 # we use locks here because if we race with commit, we |
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110 # can end up with extra data in the cloned revlogs that's |
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111 # not pointed to by changesets, thus causing verify to |
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112 # fail |
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113 |
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114 destlock = hg.copystore(ui, repo, repo.path) |
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115 |
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116 sharefile = repo.vfs.join('sharedpath') |
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117 util.rename(sharefile, sharefile + '.old') |
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118 |
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119 repo.requirements.discard('shared') |
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120 repo.requirements.discard('relshared') |
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121 repo._writerequirements() |
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122 finally: |
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123 destlock and destlock.release() |
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124 lock and lock.release() |
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125 |
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126 # update store, spath, svfs and sjoin of repo |
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127 repo.unfiltered().__init__(repo.baseui, repo.root) |
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128 |
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129 # Wrap clone command to pass auto share options. |
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130 def clone(orig, ui, source, *args, **opts): |
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131 pool = ui.config('share', 'pool', None) |
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132 if pool: |
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133 pool = util.expandpath(pool) |
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134 |
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135 opts[r'shareopts'] = { |
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136 'pool': pool, |
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137 'mode': ui.config('share', 'poolnaming', 'identity'), |
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138 } |
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139 |
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140 return orig(ui, source, *args, **opts) |
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141 |
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142 def extsetup(ui): |
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143 extensions.wrapfunction(bookmarks, '_getbkfile', getbkfile) |
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144 extensions.wrapfunction(bookmarks.bmstore, 'recordchange', recordchange) |
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145 extensions.wrapfunction(bookmarks.bmstore, '_writerepo', writerepo) |
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146 extensions.wrapcommand(commands.table, 'clone', clone) |
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147 |
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148 def _hassharedbookmarks(repo): |
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149 """Returns whether this repo has shared bookmarks""" |
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150 try: |
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151 shared = repo.vfs.read('shared').splitlines() |
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152 except IOError as inst: |
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153 if inst.errno != errno.ENOENT: |
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154 raise |
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155 return False |
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156 return hg.sharedbookmarks in shared |
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157 |
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158 def _getsrcrepo(repo): |
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159 """ |
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160 Returns the source repository object for a given shared repository. |
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161 If repo is not a shared repository, return None. |
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162 """ |
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163 if repo.sharedpath == repo.path: |
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164 return None |
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165 |
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166 if util.safehasattr(repo, 'srcrepo') and repo.srcrepo: |
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167 return repo.srcrepo |
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168 |
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169 # the sharedpath always ends in the .hg; we want the path to the repo |
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170 source = repo.vfs.split(repo.sharedpath)[0] |
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171 srcurl, branches = parseurl(source) |
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172 srcrepo = repository(repo.ui, srcurl) |
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173 repo.srcrepo = srcrepo |
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174 return srcrepo |
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175 |
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176 def getbkfile(orig, repo): |
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177 if _hassharedbookmarks(repo): |
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178 srcrepo = _getsrcrepo(repo) |
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179 if srcrepo is not None: |
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180 # just orig(srcrepo) doesn't work as expected, because |
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181 # HG_PENDING refers repo.root. |
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182 try: |
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183 fp, pending = txnutil.trypending(repo.root, repo.vfs, |
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184 'bookmarks') |
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185 if pending: |
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186 # only in this case, bookmark information in repo |
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187 # is up-to-date. |
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188 return fp |
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189 fp.close() |
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190 except IOError as inst: |
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191 if inst.errno != errno.ENOENT: |
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192 raise |
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193 |
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194 # otherwise, we should read bookmarks from srcrepo, |
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195 # because .hg/bookmarks in srcrepo might be already |
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196 # changed via another sharing repo |
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197 repo = srcrepo |
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198 |
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199 # TODO: Pending changes in repo are still invisible in |
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200 # srcrepo, because bookmarks.pending is written only into repo. |
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201 # See also https://www.mercurial-scm.org/wiki/SharedRepository |
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202 return orig(repo) |
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203 |
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204 def recordchange(orig, self, tr): |
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205 # Continue with write to local bookmarks file as usual |
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206 orig(self, tr) |
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207 |
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208 if _hassharedbookmarks(self._repo): |
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209 srcrepo = _getsrcrepo(self._repo) |
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210 if srcrepo is not None: |
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211 category = 'share-bookmarks' |
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212 tr.addpostclose(category, lambda tr: self._writerepo(srcrepo)) |
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213 |
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214 def writerepo(orig, self, repo): |
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215 # First write local bookmarks file in case we ever unshare |
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216 orig(self, repo) |
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217 |
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218 if _hassharedbookmarks(self._repo): |
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219 srcrepo = _getsrcrepo(self._repo) |
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220 if srcrepo is not None: |
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221 orig(self, srcrepo) |