Mercurial > hg
annotate hgext/uncommit.py @ 42902:ff1ff2aae132
uncommit: add support to modify the commit message and date
Currently, the evolve extension's version of this command supports it.
Differential Revision: https://phab.mercurial-scm.org/D6827
author | Matt Harbison <matt_harbison@yahoo.com> |
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date | Sat, 07 Sep 2019 13:44:29 -0400 |
parents | 566daffc607d |
children | 66048f6b5d0d |
rev | line source |
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1 # uncommit - undo the actions of a commit |
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2 # |
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3 # Copyright 2011 Peter Arrenbrecht <peter.arrenbrecht@gmail.com> |
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4 # Logilab SA <contact@logilab.fr> |
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5 # Pierre-Yves David <pierre-yves.david@ens-lyon.org> |
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6 # Patrick Mezard <patrick@mezard.eu> |
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7 # Copyright 2016 Facebook, Inc. |
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8 # |
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9 # This software may be used and distributed according to the terms of the |
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10 # GNU General Public License version 2 or any later version. |
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11 |
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12 """uncommit part or all of a local changeset (EXPERIMENTAL) |
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13 |
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14 This command undoes the effect of a local commit, returning the affected |
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15 files to their uncommitted state. This means that files modified, added or |
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16 removed in the changeset will be left unchanged, and so will remain modified, |
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17 added and removed in the working directory. |
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18 """ |
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19 |
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20 from __future__ import absolute_import |
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21 |
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22 from mercurial.i18n import _ |
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23 |
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24 from mercurial import ( |
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25 cmdutil, |
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26 commands, |
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27 context, |
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28 copies as copiesmod, |
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29 error, |
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30 node, |
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31 obsutil, |
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32 pycompat, |
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33 registrar, |
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34 rewriteutil, |
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35 scmutil, |
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36 util, |
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37 ) |
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38 |
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39 cmdtable = {} |
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40 command = registrar.command(cmdtable) |
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41 |
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42 configtable = {} |
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43 configitem = registrar.configitem(configtable) |
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44 |
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45 configitem('experimental', 'uncommitondirtywdir', |
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46 default=False, |
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47 ) |
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48 configitem('experimental', 'uncommit.keep', |
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49 default=False, |
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50 ) |
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51 |
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52 # Note for extension authors: ONLY specify testedwith = 'ships-with-hg-core' for |
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53 # extensions which SHIP WITH MERCURIAL. Non-mainline extensions should |
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54 # be specifying the version(s) of Mercurial they are tested with, or |
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55 # leave the attribute unspecified. |
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56 testedwith = 'ships-with-hg-core' |
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57 |
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58 def _commitfiltered(repo, ctx, match, keepcommit, message=None, user=None, |
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59 date=None): |
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60 """Recommit ctx with changed files not in match. Return the new |
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61 node identifier, or None if nothing changed. |
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62 """ |
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63 base = ctx.p1() |
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64 # ctx |
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65 initialfiles = set(ctx.files()) |
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66 exclude = set(f for f in initialfiles if match(f)) |
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67 |
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68 # No files matched commit, so nothing excluded |
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69 if not exclude: |
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70 return None |
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71 |
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72 # return the p1 so that we don't create an obsmarker later |
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73 if not keepcommit: |
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74 return ctx.p1().node() |
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75 |
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76 files = (initialfiles - exclude) |
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77 # Filter copies |
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78 copied = copiesmod.pathcopies(base, ctx) |
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79 copied = dict((dst, src) for dst, src in copied.iteritems() |
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80 if dst in files) |
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81 def filectxfn(repo, memctx, path, contentctx=ctx, redirect=()): |
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82 if path not in contentctx: |
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83 return None |
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84 fctx = contentctx[path] |
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85 mctx = context.memfilectx(repo, memctx, fctx.path(), fctx.data(), |
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86 fctx.islink(), |
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87 fctx.isexec(), |
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88 copysource=copied.get(path)) |
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89 return mctx |
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90 |
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91 if not files: |
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92 repo.ui.status(_("note: keeping empty commit\n")) |
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93 |
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94 if message is None: |
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95 message = ctx.description() |
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96 if not user: |
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97 user = ctx.user() |
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98 if not date: |
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99 date = ctx.date() |
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100 |
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101 new = context.memctx(repo, |
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102 parents=[base.node(), node.nullid], |
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103 text=message, |
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104 files=files, |
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105 filectxfn=filectxfn, |
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106 user=user, |
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107 date=date, |
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108 extra=ctx.extra()) |
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109 return repo.commitctx(new) |
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110 |
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111 @command('uncommit', |
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112 [('', 'keep', None, _('allow an empty commit after uncommiting')), |
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113 ('', 'allow-dirty-working-copy', False, |
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114 _('allow uncommit with outstanding changes')) |
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115 ] + commands.walkopts + commands.commitopts + commands.commitopts2, |
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116 _('[OPTION]... [FILE]...'), |
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117 helpcategory=command.CATEGORY_CHANGE_MANAGEMENT) |
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118 def uncommit(ui, repo, *pats, **opts): |
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119 """uncommit part or all of a local changeset |
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120 |
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121 This command undoes the effect of a local commit, returning the affected |
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122 files to their uncommitted state. This means that files modified or |
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123 deleted in the changeset will be left unchanged, and so will remain |
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124 modified in the working directory. |
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125 |
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126 If no files are specified, the commit will be pruned, unless --keep is |
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127 given. |
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128 """ |
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129 opts = pycompat.byteskwargs(opts) |
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130 |
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131 with repo.wlock(), repo.lock(): |
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132 |
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133 m, a, r, d = repo.status()[:4] |
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134 isdirtypath = any(set(m + a + r + d) & set(pats)) |
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135 allowdirtywcopy = (opts['allow_dirty_working_copy'] or |
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136 repo.ui.configbool('experimental', 'uncommitondirtywdir')) |
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137 if not allowdirtywcopy and (not pats or isdirtypath): |
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138 cmdutil.bailifchanged(repo, hint=_('requires ' |
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139 '--allow-dirty-working-copy to uncommit')) |
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140 old = repo['.'] |
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141 rewriteutil.precheck(repo, [old.rev()], 'uncommit') |
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142 if len(old.parents()) > 1: |
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143 raise error.Abort(_("cannot uncommit merge changeset")) |
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144 |
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145 match = scmutil.match(old, pats, opts) |
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146 |
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147 # Check all explicitly given files; abort if there's a problem. |
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148 if match.files(): |
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149 s = old.status(old.p1(), match, listclean=True) |
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150 eligible = set(s.added) | set(s.modified) | set(s.removed) |
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151 |
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152 badfiles = set(match.files()) - eligible |
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153 |
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154 # Naming a parent directory of an eligible file is OK, even |
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155 # if not everything tracked in that directory can be |
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156 # uncommitted. |
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157 if badfiles: |
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158 badfiles -= {f for f in util.dirs(eligible)} |
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159 |
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160 for f in sorted(badfiles): |
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161 if f in s.clean: |
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162 hint = _(b"file was not changed in working directory " |
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163 b"parent") |
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164 elif repo.wvfs.exists(f): |
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165 hint = _(b"file was untracked in working directory parent") |
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166 else: |
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167 hint = _(b"file does not exist") |
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168 |
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169 raise error.Abort(_(b'cannot uncommit "%s"') |
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170 % scmutil.getuipathfn(repo)(f), hint=hint) |
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171 |
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172 with repo.transaction('uncommit'): |
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173 if not (opts[b'message'] or opts[b'logfile']): |
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174 opts[b'message'] = old.description() |
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175 message = cmdutil.logmessage(ui, pycompat.byteskwargs(opts)) |
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176 |
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177 keepcommit = pats |
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178 if not keepcommit: |
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179 if opts.get('keep') is not None: |
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180 keepcommit = opts.get('keep') |
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181 else: |
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182 keepcommit = ui.configbool('experimental', 'uncommit.keep') |
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183 newid = _commitfiltered(repo, old, match, keepcommit, |
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184 message=message, user=opts.get(b'user'), |
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185 date=opts.get(b'date')) |
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186 if newid is None: |
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187 ui.status(_("nothing to uncommit\n")) |
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188 return 1 |
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189 |
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190 mapping = {} |
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191 if newid != old.p1().node(): |
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192 # Move local changes on filtered changeset |
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193 mapping[old.node()] = (newid,) |
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194 else: |
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195 # Fully removed the old commit |
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196 mapping[old.node()] = () |
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197 |
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198 with repo.dirstate.parentchange(): |
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199 scmutil.movedirstate(repo, repo[newid], match) |
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200 |
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201 scmutil.cleanupnodes(repo, mapping, 'uncommit', fixphase=True) |
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202 |
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203 def predecessormarkers(ctx): |
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204 """yields the obsolete markers marking the given changeset as a successor""" |
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205 for data in ctx.repo().obsstore.predecessors.get(ctx.node(), ()): |
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206 yield obsutil.marker(ctx.repo(), data) |
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207 |
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208 @command('unamend', [], helpcategory=command.CATEGORY_CHANGE_MANAGEMENT, |
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209 helpbasic=True) |
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210 def unamend(ui, repo, **opts): |
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211 """undo the most recent amend operation on a current changeset |
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212 |
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213 This command will roll back to the previous version of a changeset, |
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214 leaving working directory in state in which it was before running |
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215 `hg amend` (e.g. files modified as part of an amend will be |
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216 marked as modified `hg status`) |
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217 """ |
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218 |
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219 unfi = repo.unfiltered() |
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220 with repo.wlock(), repo.lock(), repo.transaction('unamend'): |
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221 |
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222 # identify the commit from which to unamend |
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223 curctx = repo['.'] |
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224 |
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225 rewriteutil.precheck(repo, [curctx.rev()], 'unamend') |
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226 |
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227 # identify the commit to which to unamend |
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228 markers = list(predecessormarkers(curctx)) |
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229 if len(markers) != 1: |
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230 e = _("changeset must have one predecessor, found %i predecessors") |
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231 raise error.Abort(e % len(markers)) |
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232 |
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233 prednode = markers[0].prednode() |
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234 predctx = unfi[prednode] |
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235 |
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236 # add an extra so that we get a new hash |
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237 # note: allowing unamend to undo an unamend is an intentional feature |
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238 extras = predctx.extra() |
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239 extras['unamend_source'] = curctx.hex() |
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240 |
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241 def filectxfn(repo, ctx_, path): |
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242 try: |
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243 return predctx.filectx(path) |
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244 except KeyError: |
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245 return None |
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246 |
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247 # Make a new commit same as predctx |
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248 newctx = context.memctx(repo, |
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249 parents=(predctx.p1(), predctx.p2()), |
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250 text=predctx.description(), |
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251 files=predctx.files(), |
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252 filectxfn=filectxfn, |
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253 user=predctx.user(), |
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254 date=predctx.date(), |
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255 extra=extras) |
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256 newprednode = repo.commitctx(newctx) |
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257 newpredctx = repo[newprednode] |
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258 dirstate = repo.dirstate |
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259 |
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260 with dirstate.parentchange(): |
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261 scmutil.movedirstate(repo, newpredctx) |
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262 |
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263 mapping = {curctx.node(): (newprednode,)} |
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264 scmutil.cleanupnodes(repo, mapping, 'unamend', fixphase=True) |