Mercurial > hg
annotate hgext/split.py @ 45856:8357e0e81bb7
split: disable color while rendering template for use in commit message
Differential Revision: https://phab.mercurial-scm.org/D9322
author | Martin von Zweigbergk <martinvonz@google.com> |
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date | Fri, 13 Nov 2020 09:41:49 -0800 |
parents | 84ce9ffc95ad |
children | 568c05d8f3d2 |
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35455 | 1 # split.py - split a changeset into smaller ones |
2 # | |
3 # Copyright 2015 Laurent Charignon <lcharignon@fb.com> | |
4 # Copyright 2017 Facebook, Inc. | |
5 # | |
6 # This software may be used and distributed according to the terms of the | |
7 # GNU General Public License version 2 or any later version. | |
8 """command to split a changeset into smaller ones (EXPERIMENTAL)""" | |
9 | |
10 from __future__ import absolute_import | |
11 | |
12 from mercurial.i18n import _ | |
13 | |
14 from mercurial.node import ( | |
15 nullid, | |
16 short, | |
17 ) | |
18 | |
19 from mercurial import ( | |
20 bookmarks, | |
21 cmdutil, | |
22 commands, | |
23 error, | |
24 hg, | |
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25 pycompat, |
35455 | 26 registrar, |
27 revsetlang, | |
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28 rewriteutil, |
35455 | 29 scmutil, |
30 ) | |
31 | |
32 # allow people to use split without explicitly enabling rebase extension | |
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33 from . import rebase |
35455 | 34 |
35 cmdtable = {} | |
36 command = registrar.command(cmdtable) | |
37 | |
38 # Note for extension authors: ONLY specify testedwith = 'ships-with-hg-core' for | |
39 # extensions which SHIP WITH MERCURIAL. Non-mainline extensions should | |
40 # be specifying the version(s) of Mercurial they are tested with, or | |
41 # leave the attribute unspecified. | |
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42 testedwith = b'ships-with-hg-core' |
35455 | 43 |
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44 |
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45 @command( |
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46 b'split', |
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47 [ |
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48 (b'r', b'rev', b'', _(b"revision to split"), _(b'REV')), |
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49 (b'', b'rebase', True, _(b'rebase descendants after split')), |
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50 ] |
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51 + cmdutil.commitopts2, |
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52 _(b'hg split [--no-rebase] [[-r] REV]'), |
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53 helpcategory=command.CATEGORY_CHANGE_MANAGEMENT, |
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54 helpbasic=True, |
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55 ) |
35455 | 56 def split(ui, repo, *revs, **opts): |
57 """split a changeset into smaller ones | |
58 | |
59 Repeatedly prompt changes and commit message for new changesets until there | |
60 is nothing left in the original changeset. | |
61 | |
62 If --rev was not given, split the working directory parent. | |
63 | |
64 By default, rebase connected non-obsoleted descendants onto the new | |
65 changeset. Use --no-rebase to avoid the rebase. | |
66 """ | |
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67 opts = pycompat.byteskwargs(opts) |
35455 | 68 revlist = [] |
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69 if opts.get(b'rev'): |
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70 revlist.append(opts.get(b'rev')) |
35455 | 71 revlist.extend(revs) |
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72 with repo.wlock(), repo.lock(), repo.transaction(b'split') as tr: |
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73 revs = scmutil.revrange(repo, revlist or [b'.']) |
35455 | 74 if len(revs) > 1: |
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75 raise error.Abort(_(b'cannot split multiple revisions')) |
35455 | 76 |
77 rev = revs.first() | |
78 ctx = repo[rev] | |
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79 # Handle nullid specially here (instead of leaving for precheck() |
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80 # below) so we get a nicer message and error code. |
35455 | 81 if rev is None or ctx.node() == nullid: |
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82 ui.status(_(b'nothing to split\n')) |
35455 | 83 return 1 |
84 if ctx.node() is None: | |
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85 raise error.Abort(_(b'cannot split working directory')) |
35455 | 86 |
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87 if opts.get(b'rebase'): |
35455 | 88 # Skip obsoleted descendants and their descendants so the rebase |
89 # won't cause conflicts for sure. | |
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90 descendants = list(repo.revs(b'(%d::) - (%d)', rev, rev)) |
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91 torebase = list( |
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92 repo.revs( |
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93 b'%ld - (%ld & obsolete())::', descendants, descendants |
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94 ) |
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95 ) |
35455 | 96 else: |
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97 torebase = [] |
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98 rewriteutil.precheck(repo, [rev] + torebase, b'split') |
35455 | 99 |
100 if len(ctx.parents()) > 1: | |
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101 raise error.Abort(_(b'cannot split a merge changeset')) |
35455 | 102 |
103 cmdutil.bailifchanged(repo) | |
104 | |
105 # Deactivate bookmark temporarily so it won't get moved unintentionally | |
106 bname = repo._activebookmark | |
107 if bname and repo._bookmarks[bname] != ctx.node(): | |
108 bookmarks.deactivate(repo) | |
109 | |
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110 wnode = repo[b'.'].node() |
35455 | 111 top = None |
112 try: | |
113 top = dosplit(ui, repo, tr, ctx, opts) | |
114 finally: | |
115 # top is None: split failed, need update --clean recovery. | |
116 # wnode == ctx.node(): wnode split, no need to update. | |
117 if top is None or wnode != ctx.node(): | |
118 hg.clean(repo, wnode, show_stats=False) | |
119 if bname: | |
120 bookmarks.activate(repo, bname) | |
121 if torebase and top: | |
122 dorebase(ui, repo, torebase, top) | |
123 | |
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124 |
35455 | 125 def dosplit(ui, repo, tr, ctx, opts): |
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126 committed = [] # [ctx] |
35455 | 127 |
128 # Set working parent to ctx.p1(), and keep working copy as ctx's content | |
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129 if ctx.node() != repo.dirstate.p1(): |
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130 hg.clean(repo, ctx.node(), show_stats=False) |
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131 with repo.dirstate.parentchange(): |
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132 scmutil.movedirstate(repo, ctx.p1()) |
35455 | 133 |
134 # Any modified, added, removed, deleted result means split is incomplete | |
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135 def incomplete(repo): |
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136 st = repo.status() |
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137 return any((st.modified, st.added, st.removed, st.deleted)) |
35455 | 138 |
139 # Main split loop | |
140 while incomplete(repo): | |
141 if committed: | |
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142 header = _( |
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143 b'HG: Splitting %s. So far it has been split into:\n' |
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144 ) % short(ctx.node()) |
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145 # We don't want color codes in the commit message template, so |
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146 # disable the label() template function while we render it. |
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147 with ui.configoverride( |
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148 {(b'templatealias', b'label(l,x)'): b"x"}, b'split' |
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149 ): |
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150 for c in committed: |
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151 summary = cmdutil.format_changeset_summary(ui, c, b'split') |
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152 header += _(b'HG: - %s\n') % summary |
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153 header += _( |
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154 b'HG: Write commit message for the next split changeset.\n' |
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155 ) |
35455 | 156 else: |
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157 header = _( |
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158 b'HG: Splitting %s. Write commit message for the ' |
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159 b'first split changeset.\n' |
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160 ) % short(ctx.node()) |
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161 opts.update( |
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162 { |
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163 b'edit': True, |
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164 b'interactive': True, |
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165 b'message': header + ctx.description(), |
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166 } |
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167 ) |
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168 commands.commit(ui, repo, **pycompat.strkwargs(opts)) |
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169 newctx = repo[b'.'] |
35455 | 170 committed.append(newctx) |
171 | |
172 if not committed: | |
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173 raise error.Abort(_(b'cannot split an empty revision')) |
35455 | 174 |
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175 scmutil.cleanupnodes( |
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176 repo, |
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177 {ctx.node(): [c.node() for c in committed]}, |
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178 operation=b'split', |
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179 fixphase=True, |
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180 ) |
35455 | 181 |
182 return committed[-1] | |
183 | |
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184 |
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185 def dorebase(ui, repo, src, destctx): |
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186 rebase.rebase( |
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187 ui, |
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188 repo, |
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189 rev=[revsetlang.formatspec(b'%ld', src)], |
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190 dest=revsetlang.formatspec(b'%d', destctx.rev()), |
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191 ) |