Mercurial > hg
annotate hgext/uncommit.py @ 51711:832a1aeb576f
pytype: only try the hacky way of finding PYTHON if not provided
This allows us to work in more environments, like when using pyenv. This
syntax is compatible with all POSIX shells.
author | Raphaël Gomès <rgomes@octobus.net> |
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date | Tue, 23 Jul 2024 12:10:31 +0200 |
parents | ca7bde5dbafb |
children | f4733654f144 |
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 |
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21 from mercurial.i18n import _ |
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22 |
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23 from mercurial import ( |
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24 cmdutil, |
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25 commands, |
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26 context, |
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27 copies as copiesmod, |
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28 error, |
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29 obsutil, |
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30 pathutil, |
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31 pycompat, |
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32 registrar, |
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33 rewriteutil, |
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34 scmutil, |
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35 ) |
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36 |
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37 cmdtable = {} |
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38 command = registrar.command(cmdtable) |
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39 |
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40 configtable = {} |
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41 configitem = registrar.configitem(configtable) |
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42 |
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43 configitem( |
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44 b'experimental', |
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45 b'uncommitondirtywdir', |
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46 default=False, |
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47 ) |
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48 configitem( |
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49 b'experimental', |
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50 b'uncommit.keep', |
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51 default=False, |
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52 ) |
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53 |
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54 # Note for extension authors: ONLY specify testedwith = 'ships-with-hg-core' for |
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55 # extensions which SHIP WITH MERCURIAL. Non-mainline extensions should |
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56 # be specifying the version(s) of Mercurial they are tested with, or |
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57 # leave the attribute unspecified. |
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58 testedwith = b'ships-with-hg-core' |
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59 |
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60 |
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61 def _commitfiltered( |
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62 repo, ctx, match, keepcommit, message=None, user=None, date=None |
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63 ): |
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64 """Recommit ctx with changed files not in match. Return the new |
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65 node identifier, or None if nothing changed. |
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66 """ |
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67 base = ctx.p1() |
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68 # ctx |
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69 initialfiles = set(ctx.files()) |
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70 exclude = {f for f in initialfiles if match(f)} |
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71 |
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72 # No files matched commit, so nothing excluded |
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73 if not exclude: |
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74 return None |
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75 |
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76 # return the p1 so that we don't create an obsmarker later |
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77 if not keepcommit: |
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78 return ctx.p1().node() |
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79 |
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80 files = initialfiles - exclude |
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81 # Filter copies |
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82 copied = copiesmod.pathcopies(base, ctx) |
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83 copied = {dst: src for dst, src in copied.items() if dst in files} |
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84 |
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85 def filectxfn(repo, memctx, path, contentctx=ctx, redirect=()): |
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86 if path not in contentctx: |
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87 return None |
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88 fctx = contentctx[path] |
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89 mctx = context.memfilectx( |
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90 repo, |
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91 memctx, |
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92 fctx.path(), |
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93 fctx.data(), |
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94 fctx.islink(), |
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95 fctx.isexec(), |
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96 copysource=copied.get(path), |
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97 ) |
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98 return mctx |
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99 |
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100 if not files: |
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101 repo.ui.status(_(b"note: keeping empty commit\n")) |
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102 |
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103 if message is None: |
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104 message = ctx.description() |
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105 if not user: |
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106 user = ctx.user() |
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107 if not date: |
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108 date = ctx.date() |
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109 |
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110 new = context.memctx( |
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111 repo, |
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112 parents=[base.node(), repo.nullid], |
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113 text=message, |
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114 files=files, |
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115 filectxfn=filectxfn, |
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116 user=user, |
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117 date=date, |
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118 extra=ctx.extra(), |
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119 ) |
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120 return repo.commitctx(new) |
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121 |
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122 |
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123 @command( |
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124 b'uncommit', |
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125 [ |
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126 (b'', b'keep', None, _(b'allow an empty commit after uncommitting')), |
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127 ( |
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128 b'', |
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129 b'allow-dirty-working-copy', |
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130 False, |
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131 _(b'allow uncommit with outstanding changes'), |
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132 ), |
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133 (b'n', b'note', b'', _(b'store a note on uncommit'), _(b'TEXT')), |
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134 ] |
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135 + commands.walkopts |
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136 + commands.commitopts |
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137 + commands.commitopts2 |
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138 + commands.commitopts3, |
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139 _(b'[OPTION]... [FILE]...'), |
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140 helpcategory=command.CATEGORY_CHANGE_MANAGEMENT, |
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141 ) |
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142 def uncommit(ui, repo, *pats, **opts): |
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143 """uncommit part or all of a local changeset |
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144 |
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145 This command undoes the effect of a local commit, returning the affected |
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146 files to their uncommitted state. This means that files modified or |
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147 deleted in the changeset will be left unchanged, and so will remain |
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148 modified in the working directory. |
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149 |
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150 If no files are specified, the commit will be pruned, unless --keep is |
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151 given. |
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152 """ |
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153 cmdutil.check_note_size(opts) |
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154 cmdutil.resolve_commit_options(ui, opts) |
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155 |
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156 with repo.wlock(), repo.lock(): |
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157 st = repo.status() |
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158 m, a, r, d = st.modified, st.added, st.removed, st.deleted |
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159 isdirtypath = any(set(m + a + r + d) & set(pats)) |
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160 allowdirtywcopy = opts[ |
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161 'allow_dirty_working_copy' |
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162 ] or repo.ui.configbool(b'experimental', b'uncommitondirtywdir') |
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163 if not allowdirtywcopy and (not pats or isdirtypath): |
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164 cmdutil.bailifchanged( |
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165 repo, |
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166 hint=_(b'requires --allow-dirty-working-copy to uncommit'), |
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167 ) |
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168 old = repo[b'.'] |
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169 rewriteutil.precheck(repo, [old.rev()], b'uncommit') |
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170 if len(old.parents()) > 1: |
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171 raise error.InputError(_(b"cannot uncommit merge changeset")) |
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172 |
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173 match = scmutil.match(old, pats, pycompat.byteskwargs(opts)) |
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174 |
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175 # Check all explicitly given files; abort if there's a problem. |
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176 if match.files(): |
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177 s = old.status(old.p1(), match, listclean=True) |
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178 eligible = set(s.added) | set(s.modified) | set(s.removed) |
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179 |
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180 badfiles = set(match.files()) - eligible |
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181 |
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182 # Naming a parent directory of an eligible file is OK, even |
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183 # if not everything tracked in that directory can be |
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184 # uncommitted. |
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185 if badfiles: |
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186 badfiles -= {f for f in pathutil.dirs(eligible)} |
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187 |
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188 for f in sorted(badfiles): |
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189 if f in s.clean: |
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190 hint = _( |
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191 b"file was not changed in working directory parent" |
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192 ) |
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193 elif repo.wvfs.exists(f): |
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194 hint = _(b"file was untracked in working directory parent") |
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195 else: |
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196 hint = _(b"file does not exist") |
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197 |
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198 raise error.InputError( |
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199 _(b'cannot uncommit "%s"') % scmutil.getuipathfn(repo)(f), |
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200 hint=hint, |
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201 ) |
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202 |
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203 with repo.transaction(b'uncommit'): |
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204 if not (opts['message'] or opts['logfile']): |
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205 opts['message'] = old.description() |
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206 message = cmdutil.logmessage(ui, pycompat.byteskwargs(opts)) |
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207 |
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208 keepcommit = pats |
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209 if not keepcommit: |
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210 if opts.get('keep') is not None: |
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211 keepcommit = opts.get('keep') |
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212 else: |
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213 keepcommit = ui.configbool( |
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214 b'experimental', b'uncommit.keep' |
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215 ) |
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216 newid = _commitfiltered( |
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217 repo, |
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218 old, |
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219 match, |
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220 keepcommit, |
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221 message=message, |
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222 user=opts.get('user'), |
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223 date=opts.get('date'), |
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224 ) |
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225 if newid is None: |
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226 ui.status(_(b"nothing to uncommit\n")) |
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227 return 1 |
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228 |
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229 mapping = {} |
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230 if newid != old.p1().node(): |
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231 # Move local changes on filtered changeset |
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232 mapping[old.node()] = (newid,) |
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233 else: |
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234 # Fully removed the old commit |
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235 mapping[old.node()] = () |
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236 |
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237 with repo.dirstate.changing_parents(repo): |
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238 scmutil.movedirstate(repo, repo[newid], match) |
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239 |
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240 scmutil.cleanupnodes(repo, mapping, b'uncommit', fixphase=True) |
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241 |
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242 |
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243 def predecessormarkers(ctx): |
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244 """yields the obsolete markers marking the given changeset as a successor""" |
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245 for data in ctx.repo().obsstore.predecessors.get(ctx.node(), ()): |
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246 yield obsutil.marker(ctx.repo(), data) |
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247 |
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248 |
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249 @command( |
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250 b'unamend', |
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251 [], |
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252 helpcategory=command.CATEGORY_CHANGE_MANAGEMENT, |
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253 helpbasic=True, |
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254 ) |
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255 def unamend(ui, repo, **opts): |
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256 """undo the most recent amend operation on a current changeset |
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257 |
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258 This command will roll back to the previous version of a changeset, |
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259 leaving working directory in state in which it was before running |
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260 `hg amend` (e.g. files modified as part of an amend will be |
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261 marked as modified `hg status`) |
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262 """ |
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263 |
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264 unfi = repo.unfiltered() |
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265 with repo.wlock(), repo.lock(), repo.transaction(b'unamend'): |
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266 # identify the commit from which to unamend |
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267 curctx = repo[b'.'] |
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268 |
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269 rewriteutil.precheck(repo, [curctx.rev()], b'unamend') |
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270 if len(curctx.parents()) > 1: |
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271 raise error.InputError(_(b"cannot unamend merge changeset")) |
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272 |
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273 expected_keys = (b'amend_source', b'unamend_source') |
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274 if not any(key in curctx.extra() for key in expected_keys): |
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275 raise error.InputError( |
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276 _( |
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277 b"working copy parent was not created by 'hg amend' or " |
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278 b"'hg unamend'" |
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279 ) |
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280 ) |
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281 |
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282 # identify the commit to which to unamend |
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283 markers = list(predecessormarkers(curctx)) |
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284 if len(markers) != 1: |
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285 e = _(b"changeset must have one predecessor, found %i predecessors") |
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286 raise error.InputError(e % len(markers)) |
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287 |
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288 prednode = markers[0].prednode() |
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289 predctx = unfi[prednode] |
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290 |
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291 # add an extra so that we get a new hash |
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292 # note: allowing unamend to undo an unamend is an intentional feature |
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293 extras = predctx.extra() |
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294 extras[b'unamend_source'] = curctx.hex() |
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295 |
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296 def filectxfn(repo, ctx_, path): |
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297 try: |
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298 return predctx.filectx(path) |
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299 except KeyError: |
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300 return None |
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301 |
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302 # Make a new commit same as predctx |
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303 newctx = context.memctx( |
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304 repo, |
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305 parents=(predctx.p1(), predctx.p2()), |
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306 text=predctx.description(), |
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307 files=predctx.files(), |
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308 filectxfn=filectxfn, |
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309 user=predctx.user(), |
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310 date=predctx.date(), |
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311 extra=extras, |
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312 ) |
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313 newprednode = repo.commitctx(newctx) |
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314 newpredctx = repo[newprednode] |
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315 dirstate = repo.dirstate |
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316 |
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317 with dirstate.changing_parents(repo): |
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318 scmutil.movedirstate(repo, newpredctx) |
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319 |
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320 mapping = {curctx.node(): (newprednode,)} |
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321 scmutil.cleanupnodes(repo, mapping, b'unamend', fixphase=True) |