Mercurial > hg
annotate hgext/uncommit.py @ 45613:ddcee0b0fd67
changing-files: add a utility to compute the merged files post-commit
We will need it in `_getsidedata` as soon as we start persisting that set.
Differential Revision: https://phab.mercurial-scm.org/D9089
author | Pierre-Yves David <pierre-yves.david@octobus.net> |
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date | Fri, 25 Sep 2020 11:29:19 +0200 |
parents | 9d2b2df2c2ba |
children | 89a2afe31e82 |
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 pathutil, |
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33 pycompat, |
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34 registrar, |
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35 rewriteutil, |
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36 scmutil, |
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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( |
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46 b'experimental', b'uncommitondirtywdir', default=False, |
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47 ) |
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48 configitem( |
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49 b'experimental', b'uncommit.keep', 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 = b'ships-with-hg-core' |
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57 |
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58 |
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59 def _commitfiltered( |
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60 repo, ctx, match, keepcommit, message=None, user=None, date=None |
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61 ): |
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62 """Recommit ctx with changed files not in match. Return the new |
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63 node identifier, or None if nothing changed. |
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64 """ |
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65 base = ctx.p1() |
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66 # ctx |
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67 initialfiles = set(ctx.files()) |
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68 exclude = {f for f in initialfiles if match(f)} |
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69 |
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70 # No files matched commit, so nothing excluded |
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71 if not exclude: |
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72 return None |
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73 |
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74 # return the p1 so that we don't create an obsmarker later |
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75 if not keepcommit: |
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76 return ctx.p1().node() |
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77 |
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78 files = initialfiles - exclude |
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79 # Filter copies |
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80 copied = copiesmod.pathcopies(base, ctx) |
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81 copied = { |
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82 dst: src for dst, src in pycompat.iteritems(copied) if dst in files |
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83 } |
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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(), node.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 opts = pycompat.byteskwargs(opts) |
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154 |
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155 cmdutil.checknotesize(ui, opts) |
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156 cmdutil.resolvecommitoptions(ui, opts) |
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157 |
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158 with repo.wlock(), repo.lock(): |
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159 |
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160 st = repo.status() |
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161 m, a, r, d = st.modified, st.added, st.removed, st.deleted |
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162 isdirtypath = any(set(m + a + r + d) & set(pats)) |
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163 allowdirtywcopy = opts[ |
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164 b'allow_dirty_working_copy' |
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165 ] or repo.ui.configbool(b'experimental', b'uncommitondirtywdir') |
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166 if not allowdirtywcopy and (not pats or isdirtypath): |
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167 cmdutil.bailifchanged( |
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168 repo, |
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169 hint=_(b'requires --allow-dirty-working-copy to uncommit'), |
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170 ) |
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171 old = repo[b'.'] |
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172 rewriteutil.precheck(repo, [old.rev()], b'uncommit') |
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173 if len(old.parents()) > 1: |
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174 raise error.Abort(_(b"cannot uncommit merge changeset")) |
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175 |
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176 match = scmutil.match(old, pats, opts) |
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177 |
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178 # Check all explicitly given files; abort if there's a problem. |
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179 if match.files(): |
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180 s = old.status(old.p1(), match, listclean=True) |
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181 eligible = set(s.added) | set(s.modified) | set(s.removed) |
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182 |
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183 badfiles = set(match.files()) - eligible |
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184 |
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185 # Naming a parent directory of an eligible file is OK, even |
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186 # if not everything tracked in that directory can be |
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187 # uncommitted. |
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188 if badfiles: |
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189 badfiles -= {f for f in pathutil.dirs(eligible)} |
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190 |
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191 for f in sorted(badfiles): |
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192 if f in s.clean: |
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193 hint = _( |
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194 b"file was not changed in working directory parent" |
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195 ) |
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196 elif repo.wvfs.exists(f): |
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197 hint = _(b"file was untracked in working directory parent") |
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198 else: |
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199 hint = _(b"file does not exist") |
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200 |
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201 raise error.Abort( |
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202 _(b'cannot uncommit "%s"') % scmutil.getuipathfn(repo)(f), |
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203 hint=hint, |
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204 ) |
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205 |
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206 with repo.transaction(b'uncommit'): |
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207 if not (opts[b'message'] or opts[b'logfile']): |
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208 opts[b'message'] = old.description() |
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209 message = cmdutil.logmessage(ui, opts) |
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210 |
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211 keepcommit = pats |
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212 if not keepcommit: |
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213 if opts.get(b'keep') is not None: |
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214 keepcommit = opts.get(b'keep') |
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215 else: |
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216 keepcommit = ui.configbool( |
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217 b'experimental', b'uncommit.keep' |
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218 ) |
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219 newid = _commitfiltered( |
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220 repo, |
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221 old, |
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222 match, |
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223 keepcommit, |
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224 message=message, |
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225 user=opts.get(b'user'), |
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226 date=opts.get(b'date'), |
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227 ) |
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228 if newid is None: |
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229 ui.status(_(b"nothing to uncommit\n")) |
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230 return 1 |
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231 |
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232 mapping = {} |
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233 if newid != old.p1().node(): |
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234 # Move local changes on filtered changeset |
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235 mapping[old.node()] = (newid,) |
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236 else: |
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237 # Fully removed the old commit |
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238 mapping[old.node()] = () |
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239 |
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240 with repo.dirstate.parentchange(): |
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241 scmutil.movedirstate(repo, repo[newid], match) |
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242 |
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243 scmutil.cleanupnodes(repo, mapping, b'uncommit', fixphase=True) |
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244 |
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245 |
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246 def predecessormarkers(ctx): |
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247 """yields the obsolete markers marking the given changeset as a successor""" |
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248 for data in ctx.repo().obsstore.predecessors.get(ctx.node(), ()): |
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249 yield obsutil.marker(ctx.repo(), data) |
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250 |
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251 |
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252 @command( |
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253 b'unamend', |
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254 [], |
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255 helpcategory=command.CATEGORY_CHANGE_MANAGEMENT, |
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256 helpbasic=True, |
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257 ) |
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258 def unamend(ui, repo, **opts): |
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259 """undo the most recent amend operation on a current changeset |
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260 |
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261 This command will roll back to the previous version of a changeset, |
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262 leaving working directory in state in which it was before running |
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263 `hg amend` (e.g. files modified as part of an amend will be |
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264 marked as modified `hg status`) |
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265 """ |
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266 |
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267 unfi = repo.unfiltered() |
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268 with repo.wlock(), repo.lock(), repo.transaction(b'unamend'): |
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269 |
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270 # identify the commit from which to unamend |
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271 curctx = repo[b'.'] |
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272 |
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273 rewriteutil.precheck(repo, [curctx.rev()], b'unamend') |
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274 |
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275 # identify the commit to which to unamend |
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276 markers = list(predecessormarkers(curctx)) |
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277 if len(markers) != 1: |
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278 e = _(b"changeset must have one predecessor, found %i predecessors") |
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279 raise error.Abort(e % len(markers)) |
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280 |
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281 prednode = markers[0].prednode() |
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282 predctx = unfi[prednode] |
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283 |
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284 # add an extra so that we get a new hash |
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285 # note: allowing unamend to undo an unamend is an intentional feature |
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286 extras = predctx.extra() |
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287 extras[b'unamend_source'] = curctx.hex() |
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288 |
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289 def filectxfn(repo, ctx_, path): |
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290 try: |
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291 return predctx.filectx(path) |
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292 except KeyError: |
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293 return None |
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294 |
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295 # Make a new commit same as predctx |
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296 newctx = context.memctx( |
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297 repo, |
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298 parents=(predctx.p1(), predctx.p2()), |
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299 text=predctx.description(), |
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300 files=predctx.files(), |
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301 filectxfn=filectxfn, |
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302 user=predctx.user(), |
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303 date=predctx.date(), |
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304 extra=extras, |
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305 ) |
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306 newprednode = repo.commitctx(newctx) |
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307 newpredctx = repo[newprednode] |
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308 dirstate = repo.dirstate |
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309 |
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310 with dirstate.parentchange(): |
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311 scmutil.movedirstate(repo, newpredctx) |
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312 |
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313 mapping = {curctx.node(): (newprednode,)} |
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314 scmutil.cleanupnodes(repo, mapping, b'unamend', fixphase=True) |