annotate hgext/evolve.py @ 228:5a17c0d41a00

proof-read documentation and docstrings
author Nicolas Chauvat <nicolas.chauvat@logilab.fr>
date Wed, 09 May 2012 14:24:56 +0200
parents cfdab01ca8a0
children adb7e29cb2bd
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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
228
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10 '''a set of commands to handle changeset mutation'''
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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 commands
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21 from mercurial import context
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22 from mercurial import copies
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23 from mercurial import util
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24 from mercurial.i18n import _
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25 from mercurial.commands import walkopts, commitopts, commitopts2, logopts
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26 from mercurial import hg
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28 ### util function
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29 #############################
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30 def noderange(repo, revsets):
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31 """The same as revrange but return node"""
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32 return map(repo.changelog.node,
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33 scmutil.revrange(repo, revsets))
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37 def warnunstable(orig, ui, repo, *args, **kwargs):
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38 """display warning is the command resulted in more instable changeset"""
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39 priorunstables = len(repo.revs('unstable()'))
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40 #print orig, priorunstables
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41 #print len(repo.revs('secret() - obsolete()'))
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42 try:
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43 return orig(ui, repo, *args, **kwargs)
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44 finally:
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45 newunstables = len(repo.revs('unstable()')) - priorunstables
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46 #print orig, newunstables
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47 #print len(repo.revs('secret() - obsolete()'))
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48 if newunstables > 0:
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49 ui.warn(_('%i new unstables changesets\n') % newunstables)
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52 ### extension check
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53 #############################
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56 ### changeset rewriting logic
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57 #############################
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58
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59 def rewrite(repo, old, updates, head, newbases, commitopts):
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60 if len(old.parents()) > 1: #XXX remove this unecessary limitation.
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61 raise error.Abort(_('cannot amend merge changesets'))
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62 base = old.p1()
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63 bm = bookmarks.readcurrent(repo)
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64
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65 wlock = repo.wlock()
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66 try:
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67
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68 # commit a new version of the old changeset, including the update
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69 # collect all files which might be affected
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70 files = set(old.files())
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71 for u in updates:
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72 files.update(u.files())
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74 # Recompute copies (avoid recording a -> b -> a)
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75 copied = copies.pathcopies(base, head)
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78 # prune files which were reverted by the updates
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79 def samefile(f):
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80 if f in head.manifest():
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81 a = head.filectx(f)
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82 if f in base.manifest():
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83 b = base.filectx(f)
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84 return (a.data() == b.data()
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85 and a.flags() == b.flags())
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86 else:
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87 return False
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88 else:
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89 return f not in base.manifest()
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90 files = [f for f in files if not samefile(f)]
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91 # commit version of these files as defined by head
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92 headmf = head.manifest()
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93 def filectxfn(repo, ctx, path):
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94 if path in headmf:
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95 fctx = head[path]
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96 flags = fctx.flags()
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97 mctx = context.memfilectx(fctx.path(), fctx.data(),
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98 islink='l' in flags,
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99 isexec='x' in flags,
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100 copied=copied.get(path))
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101 return mctx
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102 raise IOError()
104
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103 if commitopts.get('message') and commitopts.get('logfile'):
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104 raise util.Abort(_('options --message and --logfile are mutually'
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105 ' exclusive'))
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106 if commitopts.get('logfile'):
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107 message= open(commitopts['logfile']).read()
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108 elif commitopts.get('message'):
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109 message = commitopts['message']
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110 else:
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111 message = old.description()
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112
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113 user = commitopts.get('user') or old.user()
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114 date = commitopts.get('date') or None # old.date()
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115
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116 new = context.memctx(repo,
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117 parents=newbases,
104
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118 text=message,
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119 files=files,
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120 filectxfn=filectxfn,
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121 user=user,
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122 date=date,
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123 extra=commitopts.get('extra') or None)
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124
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125 if commitopts.get('edit'):
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126 new._text = cmdutil.commitforceeditor(repo, new, [])
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127 newid = repo.commitctx(new)
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128 new = repo[newid]
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129
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130 # update the bookmark
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131 if bm:
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132 repo._bookmarks[bm] = newid
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133 bookmarks.write(repo)
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134
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135 # add evolution metadata
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136 repo.addobsolete(new.node(), old.node())
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137 for u in updates:
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138 repo.addobsolete(u.node(), old.node())
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139 repo.addobsolete(new.node(), u.node())
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140 oldbookmarks = repo.nodebookmarks(old.node())
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141 for book in oldbookmarks:
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142 repo._bookmarks[book] = new.node()
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143 if oldbookmarks:
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144 bookmarks.write(repo)
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145
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146 finally:
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147 wlock.release()
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148
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149 return newid
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150
139
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151 def relocate(repo, orig, dest):
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152 """rewrite <rev> on dest"""
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153 try:
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154 rebase = extensions.find('rebase')
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155 # dummy state to trick rebase node
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156 assert orig.p2().rev() == node.nullrev, 'no support yet'
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157 destbookmarks = repo.nodebookmarks(dest.node())
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158 cmdutil.duplicatecopies(repo, orig.node(), dest.node())
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159 rebase.rebasenode(repo, orig.node(), dest.node(), {node.nullrev: node.nullrev})
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160 nodenew = rebase.concludenode(repo, orig.node(), dest.node(), node.nullid)
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161 nodesrc = orig.node()
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162 repo.addobsolete(nodenew, nodesrc)
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163 phases.retractboundary(repo, repo[nodesrc].phase(), [nodenew])
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164 oldbookmarks = repo.nodebookmarks(nodesrc)
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165 for book in oldbookmarks:
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166 repo._bookmarks[book] = nodenew
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167 for book in destbookmarks: # restore bookmark that rebase move
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168 repo._bookmarks[book] = dest.node()
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169 if oldbookmarks or destbookmarks:
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170 bookmarks.write(repo)
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171 except util.Abort:
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172 # Invalidate the previous setparents
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173 repo.dirstate.invalidate()
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174 raise
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175
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176
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177
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178 ### new command
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179 #############################
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180 cmdtable = {}
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181 command = cmdutil.command(cmdtable)
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182
137
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183 @command('^stabilize',
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184 [
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185 ('n', 'dry-run', False, 'Do nothing but printing what should be done'),
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186 ('-A', 'any', False, 'Stabilize unstable change on any topological branch'),
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187 ],
87
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188 '')
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189 def stabilize(ui, repo, **opts):
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190 """move changeset out of the unstable state
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191
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192 By default only works on changeset that will be rebase on ancestors of the
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193 current working directory parent (included)"""
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194
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195 obsolete = extensions.find('obsolete')
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196
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197 if opts['any']:
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198 rvstargets = 'unstable()'
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199 else:
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200 rvstargets = 'unstable() and ((suspended() and obsancestors(::.))::)'
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201
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202 unstable = list(repo.set(rvstargets))
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203 if not unstable:
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204 unstable = opts['any'] and () or list(repo.set('unstable()'))
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205 if unstable:
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206 ui.write_err(_('nothing to stabilize here\n'))
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207 ui.status(_('(%i unstable changesets, do you want --any ?)\n')
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208 % len(unstable))
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209 return 2
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210 else:
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211 ui.write_err(_('no unstable changeset\n'))
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212 return 1
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213 node = unstable[0]
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214 obs = node.parents()[0]
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215 if not obs.obsolete():
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216 obs = node.parents()[1]
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217 assert obs.obsolete()
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218 newer = obsolete.newerversion(repo, obs.node())
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219 if len(newer) > 1:
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220 ui.write_err(_("conflict rewriting. can't choose destination\n"))
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221 return 2
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222 targets = newer[0]
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223 if not targets:
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224 ui.write_err(_("does not handle kill parent yet\n"))
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225 return 2
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226 if len(targets) > 1:
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227 ui.write_err(_("does not handle splitted parent yet\n"))
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228 return 2
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229 target = targets[0]
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230 displayer = cmdutil.show_changeset(ui, repo, {'template': shorttemplate})
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231 target = repo[target]
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232 repo.ui.status(_('move:'))
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233 if not ui.quiet:
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234 displayer.show(node)
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235 repo.ui.status(_('atop:'))
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236 if not ui.quiet:
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237 displayer.show(target)
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238 todo= 'hg rebase -Dr %s -d %s\n' % (node, target)
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239 if opts['dry_run']:
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240 repo.ui.write(todo)
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241 else:
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242 repo.ui.note(todo)
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243 lock = repo.lock()
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244 try:
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245 relocate(repo, node, target)
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246 finally:
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247 lock.release()
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248
127
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249 shorttemplate = '[{rev}] {desc|firstline}\n'
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250
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251 @command('^gdown',
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252 [],
228
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253 '')
127
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254 def cmdgdown(ui, repo):
228
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255 """update to working directory parent an display summary lines"""
127
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256 wkctx = repo[None]
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257 wparents = wkctx.parents()
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258 if len(wparents) != 1:
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259 raise util.Abort('merge in progress')
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260
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261 parents = wparents[0].parents()
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262 displayer = cmdutil.show_changeset(ui, repo, {'template': shorttemplate})
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263 if len(parents) == 1:
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264 p = parents[0]
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265 hg.update(repo, p.rev())
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266 displayer.show(p)
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267 return 0
127
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268 else:
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269 for p in parents:
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270 displayer.show(p)
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271 ui.warn(_('multiple parents, explicitly update to one\n'))
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272 return 1
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273
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274 @command('^gup',
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275 [],
228
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276 '')
127
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277 def cmdup(ui, repo):
228
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278 """update to working directory children an display summary lines"""
127
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279 wkctx = repo[None]
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280 wparents = wkctx.parents()
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281 if len(wparents) != 1:
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282 raise util.Abort('merge in progress')
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283
127
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284 children = [ctx for ctx in wparents[0].children() if not ctx.obsolete()]
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285 displayer = cmdutil.show_changeset(ui, repo, {'template': shorttemplate})
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286 if not children:
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287 ui.warn(_('No non-obsolete children\n'))
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288 return 1
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289 if len(children) == 1:
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290 c = children[0]
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291 hg.update(repo, c.rev())
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292 displayer.show(c)
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293 return 0
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294 else:
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295 for c in children:
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296 displayer.show(c)
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297 ui.warn(_('Multiple non-obsolete children, explicitly update to one\n'))
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298 return 1
87
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299
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300
81
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301 @command('^kill',
130
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diff changeset
302 [
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303 ('n', 'new', [], _("New changeset that justify this one to be killed"))
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304 ],
81
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305 '<revs>')
130
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306 def kill(ui, repo, *revs, **opts):
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307 """mark a changeset as obsolete
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308
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309 This update the parent directory to a not-killed parent if the current
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310 working directory parent are killed.
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311
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312 XXX bookmark support
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313 XXX handle merge
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314 XXX check immutable first
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315 """
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316 wlock = repo.wlock()
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317 try:
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diff changeset
318 new = set(noderange(repo, opts['new']))
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319 targetnodes = set(noderange(repo, revs))
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320 if not new:
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321 new = [node.nullid]
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322 for n in targetnodes:
130
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diff changeset
323 if not repo[n].mutable():
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diff changeset
324 ui.warn(_("Can't kill immutable changeset %s") % repo[n])
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diff changeset
325 else:
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diff changeset
326 for ne in new:
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diff changeset
327 repo.addobsolete(ne, n)
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diff changeset
328 # update to an unkilled parent
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329 wdp = repo['.']
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330 newnode = wdp
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diff changeset
331 while newnode.obsolete():
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diff changeset
332 newnode = newnode.parents()[0]
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diff changeset
333 if newnode.node() != wdp.node():
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diff changeset
334 commands.update(ui, repo, newnode.rev())
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diff changeset
335 ui.status(_('working directory now at %s\n') % newnode)
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diff changeset
336
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337 finally:
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diff changeset
338 wlock.release()
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339
151
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diff changeset
340 @command('^amend|refresh',
82
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341 [('A', 'addremove', None,
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342 _('mark new/missing files as added/removed before committing')),
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343 ('n', 'note', '',
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344 _('use text as commit message for this update')),
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345 ('c', 'change', '',
103
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diff changeset
346 _('specifies the changeset to amend'), _('REV')),
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diff changeset
347 ('b', 'branch', '',
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348 _('specifies a branch for the new.'), _('REV')),
117
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diff changeset
349 ('e', 'edit', False,
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diff changeset
350 _('edit commit message.'), _('')),
82
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diff changeset
351 ] + walkopts + commitopts + commitopts2,
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352 _('[OPTION]... [FILE]...'))
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diff changeset
353
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354 def amend(ui, repo, *pats, **opts):
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355 """combine a changeset with updates and replace it with a new one
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diff changeset
356
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diff changeset
357 Commits a new changeset incorporating both the changes to the given files
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diff changeset
358 and all the changes from the current parent changeset into the repository.
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diff changeset
359
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diff changeset
360 See :hg:`commit` for details about committing changes.
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diff changeset
361
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diff changeset
362 If you don't specify -m, the parent's message will be reused.
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diff changeset
363
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diff changeset
364 If you specify --change, amend additionally considers all changesets between
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diff changeset
365 the indicated changeset and the working copy parent as updates to be subsumed.
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diff changeset
366 This allows you to commit updates manually first. As a special shorthand you
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diff changeset
367 can say `--amend .` instead of '--amend p1(p1())', which subsumes your latest
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368 commit as an update of its parent.
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diff changeset
369
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diff changeset
370 Behind the scenes, Mercurial first commits the update as a regular child
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diff changeset
371 of the current parent. Then it creates a new commit on the parent's parents
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diff changeset
372 with the updated contents. Then it changes the working copy parent to this
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373 new combined changeset. Finally, the old changeset and its update are hidden
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diff changeset
374 from :hg:`log` (unless you use --hidden with log).
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375
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376 Returns 0 on success, 1 if nothing changed.
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diff changeset
377 """
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378
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379 # determine updates to subsume
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380 change = opts.get('change')
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381 if change == '.':
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diff changeset
382 change = 'p1(p1())'
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diff changeset
383 old = scmutil.revsingle(repo, change)
103
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diff changeset
384 branch = opts.get('branch')
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diff changeset
385 if branch:
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diff changeset
386 opts.setdefault('extra', {})['branch'] = branch
131
3124889cad55 keep branch on amend
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diff changeset
387 else:
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diff changeset
388 if old.branch() != 'default':
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diff changeset
389 opts.setdefault('extra', {})['branch'] = old.branch()
82
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390
119
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391 lock = repo.lock()
82
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392 try:
119
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393 wlock = repo.wlock()
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394 try:
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diff changeset
395 if not old.phase():
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396 raise util.Abort(_("can not rewrite immutable changeset %s") % old)
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diff changeset
397
119
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398 # commit current changes as update
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399 # code copied from commands.commit to avoid noisy messages
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400 ciopts = dict(opts)
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401 ciopts.pop('message', None)
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402 ciopts.pop('logfile', None)
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403 ciopts['message'] = opts.get('note') or ('amends %s' % old.hex())
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404 e = cmdutil.commiteditor
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405 def commitfunc(ui, repo, message, match, opts):
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406 return repo.commit(message, opts.get('user'), opts.get('date'), match,
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407 editor=e)
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408 cmdutil.commit(ui, repo, commitfunc, pats, ciopts)
82
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diff changeset
409
119
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410 # find all changesets to be considered updates
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411 cl = repo.changelog
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diff changeset
412 head = repo['.']
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413 updatenodes = set(cl.nodesbetween(roots=[old.node()],
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414 heads=[head.node()])[0])
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415 updatenodes.remove(old.node())
140
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416 okoptions = ['message', 'logfile', 'edit', 'user', 'branch']
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417 if not updatenodes:
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418 for o in okoptions:
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419 if opts.get(o):
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420 break
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421 else:
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422 raise error.Abort(_('no updates found'))
119
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diff changeset
423 updates = [repo[n] for n in updatenodes]
82
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diff changeset
424
196
dea67dae27a4 amend: add a warning after amend added unstablility
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diff changeset
425
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diff changeset
426
119
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diff changeset
427 # perform amend
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diff changeset
428 if opts.get('edit'):
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diff changeset
429 opts['force_editor'] = True
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diff changeset
430 newid = rewrite(repo, old, updates, head,
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diff changeset
431 [old.p1().node(), old.p2().node()], opts)
82
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diff changeset
432
119
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diff changeset
433 # reroute the working copy parent to the new changeset
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diff changeset
434 phases.retractboundary(repo, old.phase(), [newid])
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diff changeset
435 repo.dirstate.setparents(newid, node.nullid)
196
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diff changeset
436
119
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diff changeset
437 finally:
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diff changeset
438 wlock.release()
82
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diff changeset
439 finally:
119
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diff changeset
440 lock.release()
116
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diff changeset
441
211
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diff changeset
442
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diff changeset
443
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444
116
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diff changeset
445 def commitwrapper(orig, ui, repo, *arg, **kwargs):
137
bbc653876876 fix evolve test
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parents: 133
diff changeset
446 lock = repo.lock()
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diff changeset
447 try:
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diff changeset
448 obsoleted = kwargs.get('obsolete', [])
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diff changeset
449 if obsoleted:
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450 obsoleted = repo.set('%lr', obsoleted)
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451 result = orig(ui, repo, *arg, **kwargs)
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diff changeset
452 if not result: # commit successed
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diff changeset
453 new = repo['-1']
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diff changeset
454 oldbookmarks = []
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455 for old in obsoleted:
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diff changeset
456 oldbookmarks.extend(repo.nodebookmarks(old.node()))
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diff changeset
457 repo.addobsolete(new.node(), old.node())
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diff changeset
458 for book in oldbookmarks:
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diff changeset
459 repo._bookmarks[book] = new.node()
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diff changeset
460 if oldbookmarks:
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diff changeset
461 bookmarks.write(repo)
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diff changeset
462 return result
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diff changeset
463 finally:
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diff changeset
464 lock.release()
116
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diff changeset
465
117
438fe133b068 Add a -o and -O option to graft.
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diff changeset
466 def graftwrapper(orig, ui, repo, *revs, **kwargs):
119
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diff changeset
467 lock = repo.lock()
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diff changeset
468 try:
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diff changeset
469 if kwargs.get('old_obsolete'):
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diff changeset
470 obsoleted = kwargs.setdefault('obsolete', [])
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diff changeset
471 if kwargs['continue']:
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diff changeset
472 obsoleted.extend(repo.opener.read('graftstate').splitlines())
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diff changeset
473 else:
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diff changeset
474 obsoleted.extend(revs)
151
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diff changeset
475 # convert obsolete target into revs to avoid alias joke
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diff changeset
476 obsoleted = kwargs.setdefault('obsolete', [])
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parents: 147
diff changeset
477 obsoleted[:] = [str(i) for i in repo.revs('%lr', obsoleted)]
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diff changeset
478 if obsoleted and len(revs) > 1:
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diff changeset
479
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parents: 147
diff changeset
480 raise error.Abort(_('Can not graft multiple revision while '
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parents: 147
diff changeset
481 'obsoleting (for now).'))
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parents: 147
diff changeset
482
119
22f2b700bd59 evolution: proper locking scheme
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diff changeset
483 return commitwrapper(orig, ui, repo,*revs, **kwargs)
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diff changeset
484 finally:
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diff changeset
485 lock.release()
117
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diff changeset
486
116
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diff changeset
487 def extsetup(ui):
211
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diff changeset
488 try:
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diff changeset
489 obsolete = extensions.find('obsolete')
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diff changeset
490 except KeyError:
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diff changeset
491 raise error.Abort(_('evolution extension require obsolete extension.'))
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parents: 196
diff changeset
492 try:
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diff changeset
493 rebase = extensions.find('rebase')
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diff changeset
494 except KeyError:
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diff changeset
495 rebase = None
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diff changeset
496 raise error.Abort(_('evolution extension require rebase extension.'))
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diff changeset
497
116
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diff changeset
498 entry = extensions.wrapcommand(commands.table, 'commit', commitwrapper)
64ca29eef349 Add a -o option to commit
Pierre-Yves David <pierre-yves.david@ens-lyon.org>
parents: 113
diff changeset
499 entry[1].append(('o', 'obsolete', [], _("this commit obsolet this revision")))
117
438fe133b068 Add a -o and -O option to graft.
Pierre-Yves David <pierre-yves.david@ens-lyon.org>
parents: 116
diff changeset
500 entry = extensions.wrapcommand(commands.table, 'graft', graftwrapper)
438fe133b068 Add a -o and -O option to graft.
Pierre-Yves David <pierre-yves.david@ens-lyon.org>
parents: 116
diff changeset
501 entry[1].append(('o', 'obsolete', [], _("this graft obsolet this revision")))
438fe133b068 Add a -o and -O option to graft.
Pierre-Yves David <pierre-yves.david@ens-lyon.org>
parents: 116
diff changeset
502 entry[1].append(('O', 'old-obsolete', False, _("graft result obsolete graft source")))
211
69a37d56c7fb evolve: issue the "%i new unstable changeset" in more place
Pierre-Yves David <pierre-yves.david@logilab.fr>
parents: 196
diff changeset
503
69a37d56c7fb evolve: issue the "%i new unstable changeset" in more place
Pierre-Yves David <pierre-yves.david@logilab.fr>
parents: 196
diff changeset
504 # warning about more obsolete
69a37d56c7fb evolve: issue the "%i new unstable changeset" in more place
Pierre-Yves David <pierre-yves.david@logilab.fr>
parents: 196
diff changeset
505 for cmd in ['commit', 'push', 'pull', 'graft']:
69a37d56c7fb evolve: issue the "%i new unstable changeset" in more place
Pierre-Yves David <pierre-yves.david@logilab.fr>
parents: 196
diff changeset
506 entry = extensions.wrapcommand(commands.table, cmd, warnunstable)
69a37d56c7fb evolve: issue the "%i new unstable changeset" in more place
Pierre-Yves David <pierre-yves.david@logilab.fr>
parents: 196
diff changeset
507 for cmd in ['kill', 'amend']:
69a37d56c7fb evolve: issue the "%i new unstable changeset" in more place
Pierre-Yves David <pierre-yves.david@logilab.fr>
parents: 196
diff changeset
508 entry = extensions.wrapcommand(cmdtable, cmd, warnunstable)
69a37d56c7fb evolve: issue the "%i new unstable changeset" in more place
Pierre-Yves David <pierre-yves.david@logilab.fr>
parents: 196
diff changeset
509
69a37d56c7fb evolve: issue the "%i new unstable changeset" in more place
Pierre-Yves David <pierre-yves.david@logilab.fr>
parents: 196
diff changeset
510 if rebase is not None:
69a37d56c7fb evolve: issue the "%i new unstable changeset" in more place
Pierre-Yves David <pierre-yves.david@logilab.fr>
parents: 196
diff changeset
511 entry = extensions.wrapcommand(rebase.cmdtable, 'rebase', warnunstable)