annotate hgext/evolution.py @ 117:438fe133b068

Add a -o and -O option to graft.
author Pierre-Yves David <pierre-yves.david@ens-lyon.org>
date Wed, 28 Dec 2011 13:10:24 +0100
parents 64ca29eef349
children 06fe05256a79
Ignore whitespace changes - Everywhere: Within whitespace: At end of lines:
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1 # states.py - introduce the state concept for mercurial changeset
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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 #
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7 # This software may be used and distributed according to the terms of the
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8 # GNU General Public License version 2 or any later version.
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9
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10 '''A set of command to make changeset evolve.'''
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11
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12 from mercurial import cmdutil
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13 from mercurial import scmutil
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14 from mercurial import node
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15 from mercurial import error
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16 from mercurial import extensions
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17 from mercurial import commands
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18 from mercurial import bookmarks
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19 from mercurial import phases
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20 from mercurial import context
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21 from mercurial import commands
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22 from mercurial import util
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23 from mercurial.i18n import _
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24 from mercurial.commands import walkopts, commitopts, commitopts2, logopts
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25
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26 ### util function
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27 #############################
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28 def noderange(repo, revsets):
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29 """The same as revrange but return node"""
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30 return map(repo.changelog.node,
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31 scmutil.revrange(repo, revsets))
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32
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33 ### extension check
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34 #############################
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35
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36 def extsetup(ui):
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37 try:
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38 obsolete = extensions.find('obsolete')
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39 except KeyError:
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40 raise error.Abort(_('evolution extension require obsolete extension.'))
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41 try:
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42 rebase = extensions.find('rebase')
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43 except KeyError:
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44 raise error.Abort(_('evolution extension require rebase extension.'))
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45
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46 ### changeset rewriting logic
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47 #############################
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48
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49 def rewrite(repo, old, updates, head, newbases, commitopts):
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50 if len(old.parents()) > 1: #XXX remove this unecessary limitation.
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51 raise error.Abort(_('cannot amend merge changesets'))
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52 base = old.p1()
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53 bm = bookmarks.readcurrent(repo)
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54
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55 wlock = repo.wlock()
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56 try:
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57
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58 # commit a new version of the old changeset, including the update
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59 # collect all files which might be affected
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60 files = set(old.files())
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61 for u in updates:
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62 files.update(u.files())
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63 # prune files which were reverted by the updates
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64 def samefile(f):
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65 if f in head.manifest():
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66 a = head.filectx(f)
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67 if f in base.manifest():
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68 b = base.filectx(f)
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69 return (a.data() == b.data()
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70 and a.flags() == b.flags()
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71 and a.renamed() == b.renamed())
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72 else:
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73 return False
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74 else:
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75 return f not in base.manifest()
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76 files = [f for f in files if not samefile(f)]
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77 # commit version of these files as defined by head
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78 headmf = head.manifest()
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79 def filectxfn(repo, ctx, path):
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80 if path in headmf:
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81 return head.filectx(path)
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82 raise IOError()
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83 if commitopts.get('message') and commitopts.get('logfile'):
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84 raise util.Abort(_('options --message and --logfile are mutually'
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85 ' exclusive'))
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86 if commitopts.get('logfile'):
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87 message= open(commitopts['logfile']).read()
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88 elif commitopts.get('message'):
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89 message = commitopts['message']
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90 else:
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91 message = old.description()
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92
82
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93 new = context.memctx(repo,
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94 parents=newbases,
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95 text=message,
82
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96 files=files,
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97 filectxfn=filectxfn,
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98 user=commitopts.get('user') or None,
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99 date=commitopts.get('date') or None,
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100 extra=commitopts.get('extra') or None)
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101 newid = repo.commitctx(new)
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102 new = repo[newid]
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103
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104 # update the bookmark
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105 if bm:
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106 repo._bookmarks[bm] = newid
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107 bookmarks.write(repo)
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108
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109 # hide obsolete csets
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110 repo.changelog.hiddeninit = False
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111
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112 # add evolution metadata
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113 repo.addobsolete(new.node(), old.node())
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114 for u in updates:
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115 repo.addobsolete(u.node(), old.node())
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116 repo.addobsolete(new.node(), u.node())
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117
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118 finally:
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119 wlock.release()
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120
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121 return newid
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122
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123 def relocate(repo, rev, dest):
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124 """rewrite <rev> on dest"""
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125 try:
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126 rebase = extensions.find('rebase')
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127 # dummy state to trick rebase node
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128 assert repo[rev].p2().rev() == node.nullrev, 'no support yet'
113
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129 cmdutil.duplicatecopies(repo, rev, repo[dest].node(),
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130 repo[rev].p2().node())
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131 rebase.rebasenode(repo, rev, dest, {node.nullrev: node.nullrev})
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132 nodenew = rebase.concludenode(repo, rev, dest, node.nullid)
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133 nodesrc = repo.changelog.node(rev)
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134 repo.addobsolete(nodenew, nodesrc)
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135 phases.retractboundary(repo, repo[nodesrc].phase(), [nodenew])
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136 oldbookmarks = repo.nodebookmarks(nodesrc)
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137 for book in oldbookmarks:
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138 repo._bookmarks[book] = nodenew
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139 if oldbookmarks:
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140 bookmarks.write(repo)
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141 except util.Abort:
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142 # Invalidate the previous setparents
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143 repo.dirstate.invalidate()
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144 raise
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145
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146
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147
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148 ### new command
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149 #############################
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150 cmdtable = {}
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151 command = cmdutil.command(cmdtable)
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152
87
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153 @command('^evolve',
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154 [],
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155 '')
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156 def evolve(ui, repo):
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157 """suggest the next evolution step"""
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158 obsolete = extensions.find('obsolete')
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159 next = min(obsolete.unstables(repo))
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160 obs = repo[next].parents()[0]
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161 if not obs.obsolete():
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162 obs = next.parents()[1]
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163 assert obs.obsolete()
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164 newer = obsolete.newerversion(repo, obs.node())
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165 target = newer[-1]
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166 repo.ui.status('hg relocate --rev %s %s\n' % (repo[next], repo[target]))
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167
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168 @command('^relocate',
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169 [
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170 ('r', 'rev', '.',
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171 _('revision to relocate')),
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172 ],
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173 '')
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174 def cmdrelocate(ui, repo, dest, rev='.'):
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175 """relocate a changeset"""
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176 wlock = repo.wlock()
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177 try:
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178 src = scmutil.revsingle(repo, rev, rev)
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179 dest = scmutil.revsingle(repo, dest, dest)
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180 if src == src.ancestor(dest):
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181 raise util.Abort(_('source is ancestor of destination'))
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182 relocate(repo, src.rev(), dest.rev())
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183 return 0
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184 finally:
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185 wlock.release()
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186
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187
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188
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189 @command('^kill',
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190 [],
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191 '<revs>')
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192 def kill(ui, repo, *revs):
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193 """mark a changeset as obsolete
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194
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195 This update the parent directory to a not-killed parent if the current
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196 working directory parent are killed.
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197
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198 XXX bookmark support
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199 XXX handle merge
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200 XXX check immutable first
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201 """
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202 wlock = repo.wlock()
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203 try:
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204 targetnodes = set(noderange(repo, revs))
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205 for n in targetnodes:
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206 repo.addobsolete(node.nullid, n)
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207 # update to an unkilled parent
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208 wdp = repo['.']
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209 newnode = wdp
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210 while newnode.obsolete():
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211 newnode = newnode.parents()[0]
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212 if newnode.node() != wdp.node():
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213 commands.update(ui, repo, newnode.rev())
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214 ui.status(_('working directory now at %s\n') % newnode)
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215
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216 finally:
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217 wlock.release()
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218
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219 @command('^amend',
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220 [('A', 'addremove', None,
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221 _('mark new/missing files as added/removed before committing')),
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222 ('n', 'note', '',
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223 _('use text as commit message for this update')),
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224 ('c', 'change', '',
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225 _('specifies the changeset to amend'), _('REV')),
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226 ('b', 'branch', '',
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227 _('specifies a branch for the new.'), _('REV')),
117
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228 ('e', 'edit', False,
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229 _('edit commit message.'), _('')),
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230 ] + walkopts + commitopts + commitopts2,
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231 _('[OPTION]... [FILE]...'))
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232
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233 def amend(ui, repo, *pats, **opts):
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234 """combine a changeset with updates and replace it with a new one
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235
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236 Commits a new changeset incorporating both the changes to the given files
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237 and all the changes from the current parent changeset into the repository.
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238
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239 See :hg:`commit` for details about committing changes.
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240
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241 If you don't specify -m, the parent's message will be reused.
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242
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243 If you specify --change, amend additionally considers all changesets between
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244 the indicated changeset and the working copy parent as updates to be subsumed.
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245 This allows you to commit updates manually first. As a special shorthand you
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246 can say `--amend .` instead of '--amend p1(p1())', which subsumes your latest
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247 commit as an update of its parent.
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248
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249 Behind the scenes, Mercurial first commits the update as a regular child
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250 of the current parent. Then it creates a new commit on the parent's parents
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251 with the updated contents. Then it changes the working copy parent to this
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252 new combined changeset. Finally, the old changeset and its update are hidden
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253 from :hg:`log` (unless you use --hidden with log).
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254
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255 Returns 0 on success, 1 if nothing changed.
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256 """
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257
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258 # determine updates to subsume
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259 change = opts.get('change')
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260 if change == '.':
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261 change = 'p1(p1())'
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262 old = scmutil.revsingle(repo, change)
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263 branch = opts.get('branch')
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264 if branch:
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265 opts.setdefault('extra', {})['branch'] = branch
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266
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267 wlock = repo.wlock()
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268 try:
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269 if not old.phase():
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270 raise util.Abort(_("can not rewrite immutable changeset %s") % old)
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271
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272 # commit current changes as update
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273 # code copied from commands.commit to avoid noisy messages
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274 ciopts = dict(opts)
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275 ciopts.pop('message', None)
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276 ciopts.pop('logfile', None)
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277 ciopts['message'] = opts.get('note') or ('amends %s' % old.hex())
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278 e = cmdutil.commiteditor
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279 if ciopts.get('edit'):
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280 e = cmdutil.commitforceeditor
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281 def commitfunc(ui, repo, message, match, opts):
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282 return repo.commit(message, opts.get('user'), opts.get('date'), match,
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283 editor=e)
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284 cmdutil.commit(ui, repo, commitfunc, pats, ciopts)
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285
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286 # find all changesets to be considered updates
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287 cl = repo.changelog
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288 head = repo['.']
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289 updatenodes = set(cl.nodesbetween(roots=[old.node()],
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290 heads=[head.node()])[0])
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291 updatenodes.remove(old.node())
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292 if not updatenodes and not (opts.get('message') or opts.get('logfile')):
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293 raise error.Abort(_('no updates found'))
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294 updates = [repo[n] for n in updatenodes]
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295
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296 # perform amend
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297 newid = rewrite(repo, old, updates, head,
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298 [old.p1().node(), old.p2().node()], opts)
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299
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300 # reroute the working copy parent to the new changeset
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301 phases.retractboundary(repo, old.phase(), [newid])
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302 repo.dirstate.setparents(newid, node.nullid)
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303
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304 finally:
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305 wlock.release()
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306
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307 def commitwrapper(orig, ui, repo, *arg, **kwargs):
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308 obsoleted = kwargs.get('obsolete', [])
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309 if obsoleted:
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310 obsoleted = repo.set('%lr', obsoleted)
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311 result = orig(ui, repo, *arg, **kwargs)
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312 if not result: # commit successed
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313 new = repo['-1']
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314 for old in obsoleted:
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315 repo.addobsolete(new.node(), old.node())
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316 return result
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317
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318 def graftwrapper(orig, ui, repo, *revs, **kwargs):
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319 if kwargs.get('old_obsolete'):
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320 obsoleted = kwargs.setdefault('obsolete', [])
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321 if kwargs['continue']:
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322 obsoleted.extend(repo.opener.read('graftstate').splitlines())
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323 else:
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324 obsoleted.extend(revs)
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325 return commitwrapper(orig, ui, repo,*revs, **kwargs)
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326
116
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327 def extsetup(ui):
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328 entry = extensions.wrapcommand(commands.table, 'commit', commitwrapper)
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329 entry[1].append(('o', 'obsolete', [], _("this commit obsolet this revision")))
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330 entry = extensions.wrapcommand(commands.table, 'graft', graftwrapper)
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331 entry[1].append(('o', 'obsolete', [], _("this graft obsolet this revision")))
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332 entry[1].append(('O', 'old-obsolete', False, _("graft result obsolete graft source")))
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333