Mercurial > evolve
annotate src/topic/__init__.py @ 1850:0da6bf86b718
commit: add a --topic flag
author | Matt Mackall <mpm@selenic.com> |
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date | Wed, 10 Jun 2015 17:13:15 -0500 |
parents | 9218f91619f6 |
children | 67d53e8e0c1a |
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1 # __init__.py - topic extension |
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2 # |
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3 # This software may be used and distributed according to the terms of the |
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4 # GNU General Public License version 2 or any later version. |
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5 """support for topic branches |
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6 |
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7 Topic branches are lightweight branches which |
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8 disappear when changes are finalized. |
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9 |
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10 This is sort of similar to a bookmark, but it applies to a whole |
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11 series instead of a single revision. |
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12 """ |
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13 import functools |
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14 |
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15 from mercurial.i18n import _ |
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16 from mercurial import cmdutil |
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17 from mercurial import commands |
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18 from mercurial import context |
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19 from mercurial import extensions |
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20 from mercurial import namespaces |
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21 from mercurial import obsolete |
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22 from mercurial import phases |
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23 from mercurial import util |
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24 |
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25 from . import constants |
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26 from . import revset as topicrevset |
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27 |
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28 cmdtable = {} |
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29 command = cmdutil.command(cmdtable) |
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30 |
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31 def _namemap(repo, name): |
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32 return [ctx.node() for ctx in |
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33 repo.set('not public() and extra(topic, %s)', name)] |
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34 |
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35 def _nodemap(repo, node): |
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36 ctx = repo[node] |
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37 t = ctx.extra().get(constants.extrakey, '') |
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38 if t and ctx.phase() > phases.public: |
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39 return [t] |
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40 return [] |
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41 |
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42 def reposetup(ui, repo): |
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43 orig = repo.__class__ |
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44 class topicrepo(repo.__class__): |
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45 def commitctx(self, ctx, error=None): |
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46 current = self.currenttopic |
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47 if current: |
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48 ctx.extra()[constants.extrakey] = current |
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49 return orig.commitctx(self, ctx, error=error) |
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50 |
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51 @property |
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52 def topics(self): |
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53 topics = set(['', self.currenttopic]) |
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54 for c in self.set('not public()'): |
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55 topics.add(c.extra().get(constants.extrakey, '')) |
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56 topics.remove('') |
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57 return topics |
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58 |
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59 @property |
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60 def currenttopic(self): |
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61 return self.vfs.tryread('topic') |
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62 |
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63 if util.safehasattr(repo, 'names'): |
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64 repo.names.addnamespace(namespaces.namespace( |
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65 'topics', 'topic', namemap=_namemap, nodemap=_nodemap)) |
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66 repo.__class__ = topicrepo |
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67 |
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68 @command('topics [TOPIC]', [ |
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69 ('', 'clear', False, 'clear active topic if any'), |
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70 ('', 'change', '', 'revset of existing revisions to change topic'), |
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71 ]) |
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72 def topics(ui, repo, topic=None, clear=False, change=None): |
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73 """View current topic, set current topic, or see all topics.""" |
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74 if not obsolete.isenabled(repo, obsolete.createmarkersopt): |
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75 raise util.Abort('current reality means you should only ' |
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76 'use topic with obsolete enabled') |
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77 if change: |
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78 if topic is None and not clear: |
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79 raise util.Abort('changing topic requires a topic name or --clear') |
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80 if any(not c.mutable() for c in repo.set('%r and public()', change)): |
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81 raise util.Abort("can't change topic of a public change") |
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82 rewrote = 0 |
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83 needevolve = False |
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84 for c in repo.set('%r', change): |
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85 def filectxfn(repo, ctx, path): |
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86 try: |
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87 return c[path] |
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88 except error.ManifestLookupError: |
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89 return None |
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90 fixedextra = dict(c.extra()) |
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91 newtopic = None if clear else topic |
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92 if fixedextra.get(constants.extrakey, None) == topic: |
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93 continue |
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94 if clear and constants.extrakey in fixedextra: |
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95 del fixedextra[constants.extrakey] |
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96 else: |
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97 fixedextra[constants.extrakey] = topic |
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98 c.parents() |
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99 mc = context.memctx( |
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100 repo, (c.p1().node(), c.p2().node()), c.description(), |
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101 c.files(), filectxfn, |
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102 user=c.user(), date=c.date(), extra=fixedextra) |
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103 newnode = repo.commitctx(mc) |
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104 needevolve = needevolve or (len(c.children()) > 0) |
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105 obsolete.createmarkers(repo, [(c, (repo[newnode],))]) |
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106 rewrote += 1 |
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107 ui.status('changed topic on %d changes\n' % rewrote) |
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108 if needevolve: |
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109 evolvetarget = 'topic(%s)' % topic if topic else 'not topic()' |
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110 ui.status('please run hg evolve --rev "%s" now\n' % evolvetarget) |
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111 if clear: |
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112 if repo.vfs.exists('topic'): |
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113 repo.vfs.unlink('topic') |
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114 return |
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115 if topic is not None: |
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116 with repo.vfs.open('topic', 'w') as f: |
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117 f.write(topic) |
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118 return |
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119 current = repo.currenttopic |
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120 for t in sorted(repo.topics): |
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121 marker = '*' if t == current else ' ' |
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122 ui.write(' %s %s\n' % (marker, t)) |
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123 |
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124 def summaryhook(ui, repo): |
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125 t = repo.currenttopic |
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126 if not t: |
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127 return |
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128 # i18n: column positioning for "hg summary" |
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129 ui.write(_("topic: %s\n") % t) |
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130 |
1850 | 131 def commitwrap(orig, ui, repo, *args, **opts): |
132 if opts.get('topic'): | |
133 t = opts['topic'] | |
134 with repo.vfs.open('topic', 'w') as f: | |
135 f.write(t) | |
136 return orig(ui, repo, *args, **opts) | |
137 | |
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138 def updatewrap(orig, ui, repo, *args, **kwargs): |
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139 ret = orig(ui, repo, *args, **kwargs) |
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140 pctx = repo['.'] |
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141 ot = repo.currenttopic |
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142 if pctx.phase() == phases.public and repo.vfs.exists('topic'): |
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143 repo.vfs.unlink('topic') |
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144 else: |
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145 # inherit the topic of the parent revision |
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146 t = pctx.extra().get(constants.extrakey, '') |
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147 if t and pctx.phase() > phases.public: |
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148 with repo.vfs.open('topic', 'w') as f: |
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149 f.write(t) |
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150 if t != ot: |
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151 ui.status(_("switching to topic %s\n") % t) |
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152 return ret |
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153 |
1850 | 154 entry = extensions.wrapcommand(commands.table, 'commit', commitwrap) |
155 entry[1].append(('t', 'topic', '', | |
156 _("use specified topic"), _('TOPIC'))) | |
157 | |
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158 extensions.wrapcommand(commands.table, 'update', updatewrap) |
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159 topicrevset.modsetup() |
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160 cmdutil.summaryhooks.add('topic', summaryhook) |