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annotate mercurial/cmd_impls/graft.py @ 52360:f2fc0a91faca

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commands: create a "mercurial.cmd_impls" module to host graft The "mercurial.commands" have been overweight for a while. We create a namespace dedicated to host smaller modules containing code revelant to a specific command. This should result in more isolated snd manageable module. We start with moving the code for "hg graft" in "mercurial.cmd_impls.graft" before doing more work on it. Since that code was about 5% of "commands.py" this seems like a success.
author Pierre-Yves David <pierre-yves.david@octobus.net>
date Tue, 19 Nov 2024 15:46:12 +0100
parents
children 5ab77b93567c
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52360
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1 # graft.py - implementation of the graft command
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2
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3 from ..i18n import _
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4
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5 from .. import cmdutil, error, logcmdutil, merge as mergemod, state as statemod
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6
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7
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8 def cmd_graft(ui, repo, *revs, **opts):
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9 """implement the graft command as defined in mercuria/commands.py"""
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10 if revs and opts.get('rev'):
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11 ui.warn(
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12 _(
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13 b'warning: inconsistent use of --rev might give unexpected '
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14 b'revision ordering!\n'
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15 )
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16 )
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17
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18 revs = list(revs)
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19 revs.extend(opts.get('rev'))
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20 # a dict of data to be stored in state file
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21 statedata = {}
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22 # list of new nodes created by ongoing graft
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23 statedata[b'newnodes'] = []
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24
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25 cmdutil.resolve_commit_options(ui, opts)
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26
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27 editor = cmdutil.getcommiteditor(editform=b'graft', **opts)
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28
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29 cmdutil.check_at_most_one_arg(opts, 'abort', 'stop', 'continue')
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30
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31 cont = False
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32 if opts.get('no_commit'):
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33 cmdutil.check_incompatible_arguments(
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34 opts,
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35 'no_commit',
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36 ['edit', 'currentuser', 'currentdate', 'log'],
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37 )
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38
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39 graftstate = statemod.cmdstate(repo, b'graftstate')
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40
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41 if opts.get('stop'):
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42 cmdutil.check_incompatible_arguments(
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43 opts,
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44 'stop',
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45 [
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46 'edit',
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47 'log',
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48 'user',
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49 'date',
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50 'currentdate',
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51 'currentuser',
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52 'rev',
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53 ],
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54 )
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55 return _stopgraft(ui, repo, graftstate)
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56 elif opts.get('abort'):
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57 cmdutil.check_incompatible_arguments(
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58 opts,
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59 'abort',
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60 [
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61 'edit',
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62 'log',
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63 'user',
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64 'date',
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65 'currentdate',
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66 'currentuser',
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67 'rev',
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68 ],
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69 )
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70 return cmdutil.abortgraft(ui, repo, graftstate)
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71 elif opts.get('continue'):
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72 cont = True
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73 if revs:
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74 raise error.InputError(_(b"can't specify --continue and revisions"))
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75 # read in unfinished revisions
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76 if graftstate.exists():
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77 statedata = cmdutil.readgraftstate(repo, graftstate)
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78 if statedata.get(b'date'):
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79 opts['date'] = statedata[b'date']
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80 if statedata.get(b'user'):
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81 opts['user'] = statedata[b'user']
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82 if statedata.get(b'log'):
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83 opts['log'] = True
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84 if statedata.get(b'no_commit'):
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85 opts['no_commit'] = statedata.get(b'no_commit')
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86 if statedata.get(b'base'):
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87 opts['base'] = statedata.get(b'base')
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88 nodes = statedata[b'nodes']
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89 revs = [repo[node].rev() for node in nodes]
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90 else:
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91 cmdutil.wrongtooltocontinue(repo, _(b'graft'))
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92 else:
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93 if not revs:
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94 raise error.InputError(_(b'no revisions specified'))
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95 cmdutil.checkunfinished(repo)
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96 cmdutil.bailifchanged(repo)
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97 revs = logcmdutil.revrange(repo, revs)
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98
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99 skipped = set()
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100 basectx = None
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101 if opts.get('base'):
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102 basectx = logcmdutil.revsingle(repo, opts['base'], None)
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103 if basectx is None:
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104 # check for merges
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105 for rev in repo.revs(b'%ld and merge()', revs):
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106 ui.warn(_(b'skipping ungraftable merge revision %d\n') % rev)
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107 skipped.add(rev)
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108 revs = [r for r in revs if r not in skipped]
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109 if not revs:
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110 return -1
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111 if basectx is not None and len(revs) != 1:
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112 raise error.InputError(_(b'only one revision allowed with --base '))
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parents:
diff changeset
113
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parents:
diff changeset
114 # Don't check in the --continue case, in effect retaining --force across
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parents:
diff changeset
115 # --continues. That's because without --force, any revisions we decided to
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parents:
diff changeset
116 # skip would have been filtered out here, so they wouldn't have made their
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parents:
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117 # way to the graftstate. With --force, any revisions we would have otherwise
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parents:
diff changeset
118 # skipped would not have been filtered out, and if they hadn't been applied
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parents:
diff changeset
119 # already, they'd have been in the graftstate.
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120 if not (cont or opts.get('force')) and basectx is None:
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parents:
diff changeset
121 # check for ancestors of dest branch
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122 ancestors = repo.revs(b'%ld & (::.)', revs)
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parents:
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123 for rev in ancestors:
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parents:
diff changeset
124 ui.warn(_(b'skipping ancestor revision %d:%s\n') % (rev, repo[rev]))
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parents:
diff changeset
125
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parents:
diff changeset
126 revs = [r for r in revs if r not in ancestors]
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parents:
diff changeset
127
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diff changeset
128 if not revs:
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129 return -1
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parents:
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130
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131 # analyze revs for earlier grafts
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132 ids = {}
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133 for ctx in repo.set(b"%ld", revs):
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134 ids[ctx.hex()] = ctx.rev()
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135 n = ctx.extra().get(b'source')
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136 if n:
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137 ids[n] = ctx.rev()
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138
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139 # check ancestors for earlier grafts
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140 ui.debug(b'scanning for duplicate grafts\n')
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parents:
diff changeset
141
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142 # The only changesets we can be sure doesn't contain grafts of any
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143 # revs, are the ones that are common ancestors of *all* revs:
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parents:
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144 for rev in repo.revs(b'only(%d,ancestor(%ld))', repo[b'.'].rev(), revs):
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parents:
diff changeset
145 ctx = repo[rev]
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diff changeset
146 n = ctx.extra().get(b'source')
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147 if n in ids:
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parents:
diff changeset
148 try:
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149 r = repo[n].rev()
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150 except error.RepoLookupError:
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diff changeset
151 r = None
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152 if r in revs:
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diff changeset
153 ui.warn(
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parents:
diff changeset
154 _(
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Pierre-Yves David <pierre-yves.david@octobus.net>
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diff changeset
155 b'skipping revision %d:%s '
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parents:
diff changeset
156 b'(already grafted to %d:%s)\n'
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parents:
diff changeset
157 )
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parents:
diff changeset
158 % (r, repo[r], rev, ctx)
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parents:
diff changeset
159 )
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parents:
diff changeset
160 revs.remove(r)
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parents:
diff changeset
161 elif ids[n] in revs:
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parents:
diff changeset
162 if r is None:
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parents:
diff changeset
163 ui.warn(
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parents:
diff changeset
164 _(
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Pierre-Yves David <pierre-yves.david@octobus.net>
parents:
diff changeset
165 b'skipping already grafted revision %d:%s '
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parents:
diff changeset
166 b'(%d:%s also has unknown origin %s)\n'
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parents:
diff changeset
167 )
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parents:
diff changeset
168 % (ids[n], repo[ids[n]], rev, ctx, n[:12])
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parents:
diff changeset
169 )
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parents:
diff changeset
170 else:
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parents:
diff changeset
171 ui.warn(
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parents:
diff changeset
172 _(
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Pierre-Yves David <pierre-yves.david@octobus.net>
parents:
diff changeset
173 b'skipping already grafted revision %d:%s '
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parents:
diff changeset
174 b'(%d:%s also has origin %d:%s)\n'
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parents:
diff changeset
175 )
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parents:
diff changeset
176 % (ids[n], repo[ids[n]], rev, ctx, r, n[:12])
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Pierre-Yves David <pierre-yves.david@octobus.net>
parents:
diff changeset
177 )
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Pierre-Yves David <pierre-yves.david@octobus.net>
parents:
diff changeset
178 revs.remove(ids[n])
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Pierre-Yves David <pierre-yves.david@octobus.net>
parents:
diff changeset
179 elif ctx.hex() in ids:
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parents:
diff changeset
180 r = ids[ctx.hex()]
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parents:
diff changeset
181 if r in revs:
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parents:
diff changeset
182 ui.warn(
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parents:
diff changeset
183 _(
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Pierre-Yves David <pierre-yves.david@octobus.net>
parents:
diff changeset
184 b'skipping already grafted revision %d:%s '
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parents:
diff changeset
185 b'(was grafted from %d:%s)\n'
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parents:
diff changeset
186 )
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parents:
diff changeset
187 % (r, repo[r], rev, ctx)
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parents:
diff changeset
188 )
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Pierre-Yves David <pierre-yves.david@octobus.net>
parents:
diff changeset
189 revs.remove(r)
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parents:
diff changeset
190 if not revs:
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parents:
diff changeset
191 return -1
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Pierre-Yves David <pierre-yves.david@octobus.net>
parents:
diff changeset
192
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Pierre-Yves David <pierre-yves.david@octobus.net>
parents:
diff changeset
193 if opts.get('no_commit'):
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parents:
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194 statedata[b'no_commit'] = True
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parents:
diff changeset
195 if opts.get('base'):
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parents:
diff changeset
196 statedata[b'base'] = opts['base']
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parents:
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197 for pos, ctx in enumerate(repo.set(b"%ld", revs)):
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parents:
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198 desc = b'%d:%s "%s"' % (
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parents:
diff changeset
199 ctx.rev(),
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parents:
diff changeset
200 ctx,
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parents:
diff changeset
201 ctx.description().split(b'\n', 1)[0],
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parents:
diff changeset
202 )
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Pierre-Yves David <pierre-yves.david@octobus.net>
parents:
diff changeset
203 names = repo.nodetags(ctx.node()) + repo.nodebookmarks(ctx.node())
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parents:
diff changeset
204 if names:
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parents:
diff changeset
205 desc += b' (%s)' % b' '.join(names)
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parents:
diff changeset
206 ui.status(_(b'grafting %s\n') % desc)
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Pierre-Yves David <pierre-yves.david@octobus.net>
parents:
diff changeset
207 if opts.get('dry_run'):
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Pierre-Yves David <pierre-yves.david@octobus.net>
parents:
diff changeset
208 continue
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Pierre-Yves David <pierre-yves.david@octobus.net>
parents:
diff changeset
209
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Pierre-Yves David <pierre-yves.david@octobus.net>
parents:
diff changeset
210 source = ctx.extra().get(b'source')
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parents:
diff changeset
211 extra = {}
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parents:
diff changeset
212 if source:
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Pierre-Yves David <pierre-yves.david@octobus.net>
parents:
diff changeset
213 extra[b'source'] = source
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parents:
diff changeset
214 extra[b'intermediate-source'] = ctx.hex()
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parents:
diff changeset
215 else:
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parents:
diff changeset
216 extra[b'source'] = ctx.hex()
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parents:
diff changeset
217 user = ctx.user()
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Pierre-Yves David <pierre-yves.david@octobus.net>
parents:
diff changeset
218 if opts.get('user'):
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parents:
diff changeset
219 user = opts['user']
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parents:
diff changeset
220 statedata[b'user'] = user
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parents:
diff changeset
221 date = ctx.date()
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Pierre-Yves David <pierre-yves.david@octobus.net>
parents:
diff changeset
222 if opts.get('date'):
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Pierre-Yves David <pierre-yves.david@octobus.net>
parents:
diff changeset
223 date = opts['date']
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224 statedata[b'date'] = date
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225 message = ctx.description()
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226 if opts.get('log'):
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227 message += b'\n(grafted from %s)' % ctx.hex()
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228 statedata[b'log'] = True
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229
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230 # we don't merge the first commit when continuing
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231 if not cont:
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232 # perform the graft merge with p1(rev) as 'ancestor'
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233 overrides = {(b'ui', b'forcemerge'): opts.get('tool', b'')}
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234 base = ctx.p1() if basectx is None else basectx
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235 with ui.configoverride(overrides, b'graft'):
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236 stats = mergemod.graft(
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237 repo, ctx, base, [b'local', b'graft', b'parent of graft']
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238 )
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239 # report any conflicts
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240 if stats.unresolvedcount > 0:
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241 # write out state for --continue
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242 nodes = [repo[rev].hex() for rev in revs[pos:]]
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243 statedata[b'nodes'] = nodes
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244 stateversion = 1
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245 graftstate.save(stateversion, statedata)
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246 ui.error(_(b"abort: unresolved conflicts, can't continue\n"))
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247 ui.error(_(b"(use 'hg resolve' and 'hg graft --continue')\n"))
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248 return 1
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249 else:
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250 cont = False
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251
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252 # commit if --no-commit is false
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253 if not opts.get('no_commit'):
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254 node = repo.commit(
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255 text=message, user=user, date=date, extra=extra, editor=editor
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256 )
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257 if node is None:
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258 ui.warn(
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259 _(b'note: graft of %d:%s created no changes to commit\n')
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260 % (ctx.rev(), ctx)
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261 )
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262 # checking that newnodes exist because old state files won't have it
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263 elif statedata.get(b'newnodes') is not None:
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264 nn = statedata[b'newnodes']
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265 assert isinstance(nn, list) # list of bytes
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266 nn.append(node)
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267
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268 # remove state when we complete successfully
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269 if not opts.get('dry_run'):
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270 graftstate.delete()
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271
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272 return 0
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273
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274
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275 def _stopgraft(ui, repo, graftstate):
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276 """stop the interrupted graft"""
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277 if not graftstate.exists():
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278 raise error.StateError(_(b"no interrupted graft found"))
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279 pctx = repo[b'.']
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280 mergemod.clean_update(pctx)
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281 graftstate.delete()
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282 ui.status(_(b"stopped the interrupted graft\n"))
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283 ui.status(_(b"working directory is now at %s\n") % pctx.hex()[:12])
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284 return 0