Mercurial > hg
annotate hgext/rebase.py @ 17208:8018f2340807
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author | Pierre-Yves.David@ens-lyon.org |
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date | Mon, 16 Jul 2012 17:56:50 +0200 |
parents | fba17a64fa49 |
children | e4db509c08ec |
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1 # rebase.py - rebasing feature for mercurial |
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2 # |
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3 # Copyright 2008 Stefano Tortarolo <stefano.tortarolo at gmail dot com> |
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4 # |
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5 # This software may be used and distributed according to the terms of the |
10263 | 6 # GNU General Public License version 2 or any later version. |
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7 |
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8 '''command to move sets of revisions to a different ancestor |
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9 |
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10 This extension lets you rebase changesets in an existing Mercurial |
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11 repository. |
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12 |
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13 For more information: |
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14 http://mercurial.selenic.com/wiki/RebaseExtension |
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15 ''' |
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16 |
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17 from mercurial import hg, util, repair, merge, cmdutil, commands, bookmarks |
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18 from mercurial import extensions, patch, scmutil, phases |
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19 from mercurial.commands import templateopts |
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20 from mercurial.node import nullrev |
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21 from mercurial.lock import release |
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22 from mercurial.i18n import _ |
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23 import os, errno |
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24 |
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25 nullmerge = -2 |
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26 |
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27 cmdtable = {} |
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28 command = cmdutil.command(cmdtable) |
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29 testedwith = 'internal' |
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30 |
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31 @command('rebase', |
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32 [('s', 'source', '', |
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33 _('rebase from the specified changeset'), _('REV')), |
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34 ('b', 'base', '', |
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35 _('rebase from the base of the specified changeset ' |
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36 '(up to greatest common ancestor of base and dest)'), |
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37 _('REV')), |
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38 ('r', 'rev', [], |
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39 _('rebase these revisions'), |
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40 _('REV')), |
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41 ('d', 'dest', '', |
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42 _('rebase onto the specified changeset'), _('REV')), |
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43 ('', 'collapse', False, _('collapse the rebased changesets')), |
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44 ('m', 'message', '', |
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45 _('use text as collapse commit message'), _('TEXT')), |
15219 | 46 ('e', 'edit', False, _('invoke editor on commit messages')), |
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47 ('l', 'logfile', '', |
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48 _('read collapse commit message from file'), _('FILE')), |
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49 ('', 'keep', False, _('keep original changesets')), |
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50 ('', 'keepbranches', False, _('keep original branch names')), |
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51 ('D', 'detach', False, _('(DEPRECATED)')), |
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52 ('t', 'tool', '', _('specify merge tool')), |
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53 ('c', 'continue', False, _('continue an interrupted rebase')), |
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54 ('a', 'abort', False, _('abort an interrupted rebase'))] + |
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55 templateopts, |
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56 _('hg rebase [-s REV | -b REV] [-d REV] [options]\n' |
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57 'hg rebase {-a|-c}')) |
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58 def rebase(ui, repo, **opts): |
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59 """move changeset (and descendants) to a different branch |
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60 |
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61 Rebase uses repeated merging to graft changesets from one part of |
10646 | 62 history (the source) onto another (the destination). This can be |
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63 useful for linearizing *local* changes relative to a master |
10646 | 64 development tree. |
65 | |
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66 You should not rebase changesets that have already been shared |
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67 with others. Doing so will force everybody else to perform the |
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68 same rebase or they will end up with duplicated changesets after |
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69 pulling in your rebased changesets. |
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70 |
10646 | 71 If you don't specify a destination changeset (``-d/--dest``), |
72 rebase uses the tipmost head of the current named branch as the | |
73 destination. (The destination changeset is not modified by | |
74 rebasing, but new changesets are added as its descendants.) | |
75 | |
76 You can specify which changesets to rebase in two ways: as a | |
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77 "source" changeset or as a "base" changeset. Both are shorthand |
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78 for a topologically related set of changesets (the "source |
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79 branch"). If you specify source (``-s/--source``), rebase will |
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80 rebase that changeset and all of its descendants onto dest. If you |
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81 specify base (``-b/--base``), rebase will select ancestors of base |
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82 back to but not including the common ancestor with dest. Thus, |
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83 ``-b`` is less precise but more convenient than ``-s``: you can |
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84 specify any changeset in the source branch, and rebase will select |
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85 the whole branch. If you specify neither ``-s`` nor ``-b``, rebase |
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86 uses the parent of the working directory as the base. |
10646 | 87 |
88 By default, rebase recreates the changesets in the source branch | |
89 as descendants of dest and then destroys the originals. Use | |
90 ``--keep`` to preserve the original source changesets. Some | |
91 changesets in the source branch (e.g. merges from the destination | |
92 branch) may be dropped if they no longer contribute any change. | |
93 | |
94 One result of the rules for selecting the destination changeset | |
95 and source branch is that, unlike ``merge``, rebase will do | |
96 nothing if you are at the latest (tipmost) head of a named branch | |
97 with two heads. You need to explicitly specify source and/or | |
98 destination (or ``update`` to the other head, if it's the head of | |
99 the intended source branch). | |
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100 |
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101 If a rebase is interrupted to manually resolve a merge, it can be |
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102 continued with --continue/-c or aborted with --abort/-a. |
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104 Returns 0 on success, 1 if nothing to rebase. | |
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105 """ |
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106 originalwd = target = None |
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107 external = nullrev |
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108 state = {} |
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109 skipped = set() |
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110 targetancestors = set() |
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111 |
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113 if opts.get('edit'): | |
114 editor = cmdutil.commitforceeditor | |
115 | |
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116 lock = wlock = None |
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117 try: |
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118 wlock = repo.wlock() |
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119 lock = repo.lock() |
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120 |
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121 # Validate input and define rebasing points |
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122 destf = opts.get('dest', None) |
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123 srcf = opts.get('source', None) |
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124 basef = opts.get('base', None) |
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125 revf = opts.get('rev', []) |
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126 contf = opts.get('continue') |
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127 abortf = opts.get('abort') |
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128 collapsef = opts.get('collapse', False) |
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129 collapsemsg = cmdutil.logmessage(ui, opts) |
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130 extrafn = opts.get('extrafn') # internal, used by e.g. hgsubversion |
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131 keepf = opts.get('keep', False) |
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132 keepbranchesf = opts.get('keepbranches', False) |
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133 # keepopen is not meant for use on the command line, but by |
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134 # other extensions |
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135 keepopen = opts.get('keepopen', False) |
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136 |
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137 if collapsemsg and not collapsef: |
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138 raise util.Abort( |
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139 _('message can only be specified with collapse')) |
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140 |
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141 if contf or abortf: |
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142 if contf and abortf: |
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143 raise util.Abort(_('cannot use both abort and continue')) |
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144 if collapsef: |
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145 raise util.Abort( |
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146 _('cannot use collapse with continue or abort')) |
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147 if srcf or basef or destf: |
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148 raise util.Abort( |
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149 _('abort and continue do not allow specifying revisions')) |
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150 if opts.get('tool', False): |
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151 ui.warn(_('tool option will be ignored\n')) |
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152 |
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153 (originalwd, target, state, skipped, collapsef, keepf, |
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154 keepbranchesf, external) = restorestatus(repo) |
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155 if abortf: |
11205 | 156 return abort(repo, originalwd, target, state) |
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157 else: |
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158 if srcf and basef: |
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159 raise util.Abort(_('cannot specify both a ' |
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160 'source and a base')) |
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161 if revf and basef: |
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162 raise util.Abort(_('cannot specify both a ' |
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163 'revision and a base')) |
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164 if revf and srcf: |
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165 raise util.Abort(_('cannot specify both a ' |
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166 'revision and a source')) |
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167 |
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168 cmdutil.bailifchanged(repo) |
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169 |
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170 if not destf: |
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171 # Destination defaults to the latest revision in the |
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172 # current branch |
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173 branch = repo[None].branch() |
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174 dest = repo[branch] |
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175 else: |
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176 dest = scmutil.revsingle(repo, destf) |
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177 |
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178 if revf: |
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179 rebaseset = repo.revs('%lr', revf) |
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180 elif srcf: |
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181 src = scmutil.revrange(repo, [srcf]) |
15801 | 182 rebaseset = repo.revs('(%ld)::', src) |
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183 else: |
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184 base = scmutil.revrange(repo, [basef or '.']) |
15801 | 185 rebaseset = repo.revs( |
186 '(children(ancestor(%ld, %d)) and ::(%ld))::', | |
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187 base, dest, base) |
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188 |
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189 if rebaseset: |
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190 root = min(rebaseset) |
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191 else: |
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192 root = None |
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193 |
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194 if not rebaseset: |
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195 repo.ui.debug('base is ancestor of destination\n') |
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196 result = None |
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197 elif not keepf and list(repo.revs('first(children(%ld) - %ld)', |
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198 rebaseset, rebaseset)): |
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199 raise util.Abort( |
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200 _("can't remove original changesets with" |
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201 " unrebased descendants"), |
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202 hint=_('use --keep to keep original changesets')) |
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203 elif not keepf and not repo[root].mutable(): |
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204 raise util.Abort(_("can't rebase immutable changeset %s") |
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205 % repo[root], |
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206 hint=_('see hg help phases for details')) |
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207 else: |
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208 result = buildstate(repo, dest, rebaseset, collapsef) |
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209 |
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210 if not result: |
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211 # Empty state built, nothing to rebase |
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212 ui.status(_('nothing to rebase\n')) |
11205 | 213 return 1 |
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214 else: |
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215 originalwd, target, state = result |
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216 if collapsef: |
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217 targetancestors = set(repo.changelog.ancestors([target])) |
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218 targetancestors.add(target) |
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219 external = checkexternal(repo, state, targetancestors) |
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220 |
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221 if keepbranchesf: |
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222 assert not extrafn, 'cannot use both keepbranches and extrafn' |
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223 def extrafn(ctx, extra): |
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224 extra['branch'] = ctx.branch() |
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225 if collapsef: |
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226 branches = set() |
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227 for rev in state: |
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228 branches.add(repo[rev].branch()) |
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229 if len(branches) > 1: |
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230 raise util.Abort(_('cannot collapse multiple named ' |
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231 'branches')) |
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232 |
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233 |
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234 # Rebase |
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235 if not targetancestors: |
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236 targetancestors = set(repo.changelog.ancestors([target])) |
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237 targetancestors.add(target) |
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238 |
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239 # Keep track of the current bookmarks in order to reset them later |
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240 currentbookmarks = repo._bookmarks.copy() |
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241 activebookmark = repo._bookmarkcurrent |
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242 if activebookmark: |
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243 bookmarks.unsetcurrent(repo) |
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244 |
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245 sortedstate = sorted(state) |
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246 total = len(sortedstate) |
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247 pos = 0 |
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248 for rev in sortedstate: |
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249 pos += 1 |
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250 if state[rev] == -1: |
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251 ui.progress(_("rebasing"), pos, ("%d:%s" % (rev, repo[rev])), |
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252 _('changesets'), total) |
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253 storestatus(repo, originalwd, target, state, collapsef, keepf, |
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254 keepbranchesf, external) |
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255 p1, p2 = defineparents(repo, rev, target, state, |
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256 targetancestors) |
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257 if len(repo.parents()) == 2: |
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258 repo.ui.debug('resuming interrupted rebase\n') |
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259 else: |
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260 try: |
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261 ui.setconfig('ui', 'forcemerge', opts.get('tool', '')) |
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262 stats = rebasenode(repo, rev, p1, state, collapsef) |
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263 if stats and stats[3] > 0: |
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264 raise util.Abort(_('unresolved conflicts (see hg ' |
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265 'resolve, then hg rebase --continue)')) |
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266 finally: |
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267 ui.setconfig('ui', 'forcemerge', '') |
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268 cmdutil.duplicatecopies(repo, rev, target) |
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269 if not collapsef: |
15219 | 270 newrev = concludenode(repo, rev, p1, p2, extrafn=extrafn, |
271 editor=editor) | |
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272 else: |
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273 # Skip commit if we are collapsing |
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274 repo.setparents(repo[p1].node()) |
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275 newrev = None |
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276 # Update the state |
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277 if newrev is not None: |
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278 state[rev] = repo[newrev].rev() |
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279 else: |
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280 if not collapsef: |
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281 ui.note(_('no changes, revision %d skipped\n') % rev) |
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282 ui.debug('next revision set to %s\n' % p1) |
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283 skipped.add(rev) |
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284 state[rev] = p1 |
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285 |
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286 ui.progress(_('rebasing'), None) |
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287 ui.note(_('rebase merging completed\n')) |
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288 |
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289 if collapsef and not keepopen: |
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290 p1, p2 = defineparents(repo, min(state), target, |
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291 state, targetancestors) |
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292 if collapsemsg: |
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293 commitmsg = collapsemsg |
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294 else: |
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295 commitmsg = 'Collapsed revision' |
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296 for rebased in state: |
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297 if rebased not in skipped and state[rebased] != nullmerge: |
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298 commitmsg += '\n* %s' % repo[rebased].description() |
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299 commitmsg = ui.edit(commitmsg, repo.ui.username()) |
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300 newrev = concludenode(repo, rev, p1, external, commitmsg=commitmsg, |
15219 | 301 extrafn=extrafn, editor=editor) |
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302 |
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303 if 'qtip' in repo.tags(): |
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304 updatemq(repo, state, skipped, **opts) |
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305 |
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306 if currentbookmarks: |
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307 # Nodeids are needed to reset bookmarks |
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308 nstate = {} |
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309 for k, v in state.iteritems(): |
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310 if v != nullmerge: |
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311 nstate[repo[k].node()] = repo[v].node() |
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312 |
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313 if not keepf: |
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314 # Remove no more useful revisions |
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315 rebased = [rev for rev in state if state[rev] != nullmerge] |
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316 if rebased: |
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317 if set(repo.changelog.descendants([min(rebased)])) - set(state): |
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318 ui.warn(_("warning: new changesets detected " |
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319 "on source branch, not stripping\n")) |
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320 else: |
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321 # backup the old csets by default |
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322 repair.strip(ui, repo, repo[min(rebased)].node(), "all") |
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323 |
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324 if currentbookmarks: |
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325 updatebookmarks(repo, nstate, currentbookmarks, **opts) |
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326 |
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327 clearstatus(repo) |
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328 ui.note(_("rebase completed\n")) |
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329 if os.path.exists(repo.sjoin('undo')): |
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330 util.unlinkpath(repo.sjoin('undo')) |
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331 if skipped: |
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332 ui.note(_("%d revisions have been skipped\n") % len(skipped)) |
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333 |
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334 if (activebookmark and |
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335 repo['tip'].node() == repo._bookmarks[activebookmark]): |
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336 bookmarks.setcurrent(repo, activebookmark) |
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337 |
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338 finally: |
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339 release(lock, wlock) |
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340 |
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341 def checkexternal(repo, state, targetancestors): |
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342 """Check whether one or more external revisions need to be taken in |
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343 consideration. In the latter case, abort. |
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344 """ |
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345 external = nullrev |
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346 source = min(state) |
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347 for rev in state: |
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348 if rev == source: |
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349 continue |
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350 # Check externals and fail if there are more than one |
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351 for p in repo[rev].parents(): |
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352 if (p.rev() not in state |
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353 and p.rev() not in targetancestors): |
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354 if external != nullrev: |
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355 raise util.Abort(_('unable to collapse, there is more ' |
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356 'than one external parent')) |
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357 external = p.rev() |
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358 return external |
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359 |
15219 | 360 def concludenode(repo, rev, p1, p2, commitmsg=None, editor=None, extrafn=None): |
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361 'Commit the changes and store useful information in extra' |
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362 try: |
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363 repo.setparents(repo[p1].node(), repo[p2].node()) |
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364 ctx = repo[rev] |
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365 if commitmsg is None: |
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366 commitmsg = ctx.description() |
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367 extra = {'rebase_source': ctx.hex()} |
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368 if extrafn: |
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369 extrafn(ctx, extra) |
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370 # Commit might fail if unresolved files exist |
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371 newrev = repo.commit(text=commitmsg, user=ctx.user(), |
15219 | 372 date=ctx.date(), extra=extra, editor=editor) |
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373 repo.dirstate.setbranch(repo[newrev].branch()) |
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374 targetphase = max(ctx.phase(), phases.draft) |
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375 # retractboundary doesn't overwrite upper phase inherited from parent |
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376 newnode = repo[newrev].node() |
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377 if newnode: |
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378 phases.retractboundary(repo, targetphase, [newnode]) |
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379 return newrev |
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380 except util.Abort: |
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381 # Invalidate the previous setparents |
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382 repo.dirstate.invalidate() |
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383 raise |
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384 |
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385 def rebasenode(repo, rev, p1, state, collapse): |
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386 'Rebase a single revision' |
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387 # Merge phase |
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388 # Update to target and merge it with local |
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389 if repo['.'].rev() != repo[p1].rev(): |
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390 repo.ui.debug(" update to %d:%s\n" % (repo[p1].rev(), repo[p1])) |
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391 merge.update(repo, p1, False, True, False) |
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392 else: |
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393 repo.ui.debug(" already in target\n") |
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394 repo.dirstate.write() |
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395 repo.ui.debug(" merge against %d:%s\n" % (repo[rev].rev(), repo[rev])) |
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396 base = None |
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397 if repo[rev].rev() != repo[min(state)].rev(): |
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398 base = repo[rev].p1().node() |
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399 # When collapsing in-place, the parent is the common ancestor, we |
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400 # have to allow merging with it. |
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401 return merge.update(repo, rev, True, True, False, base, collapse) |
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402 |
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403 def defineparents(repo, rev, target, state, targetancestors): |
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404 'Return the new parent relationship of the revision that will be rebased' |
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405 parents = repo[rev].parents() |
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406 p1 = p2 = nullrev |
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407 |
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408 P1n = parents[0].rev() |
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409 if P1n in targetancestors: |
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410 p1 = target |
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411 elif P1n in state: |
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412 if state[P1n] == nullmerge: |
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413 p1 = target |
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414 else: |
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415 p1 = state[P1n] |
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416 else: # P1n external |
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417 p1 = target |
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418 p2 = P1n |
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419 |
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420 if len(parents) == 2 and parents[1].rev() not in targetancestors: |
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421 P2n = parents[1].rev() |
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422 # interesting second parent |
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423 if P2n in state: |
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424 if p1 == target: # P1n in targetancestors or external |
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425 p1 = state[P2n] |
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426 else: |
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427 p2 = state[P2n] |
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428 else: # P2n external |
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429 if p2 != nullrev: # P1n external too => rev is a merged revision |
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430 raise util.Abort(_('cannot use revision %d as base, result ' |
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431 'would have 3 parents') % rev) |
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432 p2 = P2n |
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433 repo.ui.debug(" future parents are %d and %d\n" % |
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434 (repo[p1].rev(), repo[p2].rev())) |
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435 return p1, p2 |
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436 |
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437 def isagitpatch(repo, patchname): |
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438 'Return true if the given patch is in git format' |
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439 mqpatch = os.path.join(repo.mq.path, patchname) |
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440 for line in patch.linereader(file(mqpatch, 'rb')): |
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441 if line.startswith('diff --git'): |
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442 return True |
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443 return False |
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444 |
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445 def updatemq(repo, state, skipped, **opts): |
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446 'Update rebased mq patches - finalize and then import them' |
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447 mqrebase = {} |
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448 mq = repo.mq |
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449 original_series = mq.fullseries[:] |
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450 skippedpatches = set() |
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451 |
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452 for p in mq.applied: |
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453 rev = repo[p.node].rev() |
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454 if rev in state: |
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do not attempt to translate ui.debug output
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455 repo.ui.debug('revision %d is an mq patch (%s), finalize it.\n' % |
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456 (rev, p.name)) |
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457 mqrebase[rev] = (p.name, isagitpatch(repo, p.name)) |
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458 else: |
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459 # Applied but not rebased, not sure this should happen |
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460 skippedpatches.add(p.name) |
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461 |
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462 if mqrebase: |
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463 mq.finish(repo, mqrebase.keys()) |
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464 |
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465 # We must start import from the newest revision |
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466 for rev in sorted(mqrebase, reverse=True): |
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467 if rev not in skipped: |
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468 name, isgit = mqrebase[rev] |
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469 repo.ui.debug('import mq patch %d (%s)\n' % (state[rev], name)) |
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470 mq.qimport(repo, (), patchname=name, git=isgit, |
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471 rev=[str(state[rev])]) |
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472 else: |
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473 # Rebased and skipped |
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474 skippedpatches.add(mqrebase[rev][0]) |
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475 |
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476 # Patches were either applied and rebased and imported in |
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477 # order, applied and removed or unapplied. Discard the removed |
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478 # ones while preserving the original series order and guards. |
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479 newseries = [s for s in original_series |
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|
480 if mq.guard_re.split(s, 1)[0] not in skippedpatches] |
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481 mq.fullseries[:] = newseries |
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482 mq.seriesdirty = True |
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|
483 mq.savedirty() |
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484 |
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485 def updatebookmarks(repo, nstate, originalbookmarks, **opts): |
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486 'Move bookmarks to their correct changesets' |
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487 for k, v in originalbookmarks.iteritems(): |
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488 if v in nstate: |
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|
489 if nstate[v] != nullmerge: |
17046
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David Schleimer <dschleimer@fb.com>
parents:
17026
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changeset
|
490 # update the bookmarks for revs that have moved |
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491 repo._bookmarks[k] = nstate[v] |
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492 |
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493 bookmarks.write(repo) |
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494 |
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495 def storestatus(repo, originalwd, target, state, collapse, keep, keepbranches, |
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496 external): |
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497 'Store the current status to allow recovery' |
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498 f = repo.opener("rebasestate", "w") |
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499 f.write(repo[originalwd].hex() + '\n') |
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500 f.write(repo[target].hex() + '\n') |
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501 f.write(repo[external].hex() + '\n') |
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502 f.write('%d\n' % int(collapse)) |
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503 f.write('%d\n' % int(keep)) |
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504 f.write('%d\n' % int(keepbranches)) |
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Dirkjan Ochtman <dirkjan@ochtman.nl>
parents:
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505 for d, v in state.iteritems(): |
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506 oldrev = repo[d].hex() |
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507 if v != nullmerge: |
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508 newrev = repo[v].hex() |
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509 else: |
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510 newrev = v |
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511 f.write("%s:%s\n" % (oldrev, newrev)) |
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512 f.close() |
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513 repo.ui.debug('rebase status stored\n') |
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514 |
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515 def clearstatus(repo): |
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516 'Remove the status files' |
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517 if os.path.exists(repo.join("rebasestate")): |
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518 util.unlinkpath(repo.join("rebasestate")) |
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519 |
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520 def restorestatus(repo): |
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521 'Restore a previously stored status' |
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522 try: |
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523 target = None |
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524 collapse = False |
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525 external = nullrev |
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526 state = {} |
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527 f = repo.opener("rebasestate") |
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528 for i, l in enumerate(f.read().splitlines()): |
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529 if i == 0: |
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530 originalwd = repo[l].rev() |
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531 elif i == 1: |
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532 target = repo[l].rev() |
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533 elif i == 2: |
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534 external = repo[l].rev() |
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535 elif i == 3: |
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536 collapse = bool(int(l)) |
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537 elif i == 4: |
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538 keep = bool(int(l)) |
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539 elif i == 5: |
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540 keepbranches = bool(int(l)) |
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541 else: |
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542 oldrev, newrev = l.split(':') |
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543 if newrev != str(nullmerge): |
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544 state[repo[oldrev].rev()] = repo[newrev].rev() |
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545 else: |
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changeset
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546 state[repo[oldrev].rev()] = int(newrev) |
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|
547 skipped = set() |
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|
548 # recompute the set of skipped revs |
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549 if not collapse: |
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550 seen = set([target]) |
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551 for old, new in sorted(state.items()): |
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552 if new != nullrev and new in seen: |
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553 skipped.add(old) |
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554 seen.add(new) |
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|
555 repo.ui.debug('computed skipped revs: %s\n' % skipped) |
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|
556 repo.ui.debug('rebase status resumed\n') |
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|
557 return (originalwd, target, state, skipped, |
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558 collapse, keep, keepbranches, external) |
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559 except IOError, err: |
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560 if err.errno != errno.ENOENT: |
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|
561 raise |
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562 raise util.Abort(_('no rebase in progress')) |
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563 |
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564 def abort(repo, originalwd, target, state): |
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565 'Restore the repository to its original state' |
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566 dstates = [s for s in state.values() if s != nullrev] |
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f8af57c00a29
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|
567 immutable = [d for d in dstates if not repo[d].mutable()] |
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diff
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|
568 if immutable: |
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|
569 raise util.Abort(_("can't abort rebase due to immutable changesets %s") |
f8af57c00a29
rebase: improve error message on improper phases
Dan Villiom Podlaski Christiansen <dan@cabo.dk>
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changeset
|
570 % ', '.join(str(repo[r]) for r in immutable), |
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571 hint=_('see hg help phases for details')) |
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572 |
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573 descendants = set() |
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|
574 if dstates: |
16867
1093ad1e8903
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Bryan O'Sullivan <bryano@fb.com>
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16866
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|
575 descendants = set(repo.changelog.descendants(dstates)) |
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|
576 if descendants - set(dstates): |
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577 repo.ui.warn(_("warning: new changesets detected on target branch, " |
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578 "can't abort\n")) |
11205 | 579 return -1 |
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|
580 else: |
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changeset
|
581 # Strip from the first rebased revision |
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changeset
|
582 merge.update(repo, repo[originalwd].rev(), False, True, False) |
11316
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Stefano Tortarolo <stefano.tortarolo@gmail.com>
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|
583 rebased = filter(lambda x: x > -1 and x != target, state.values()) |
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|
584 if rebased: |
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585 strippoint = min(rebased) |
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34023f2ca305
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parents:
11189
diff
changeset
|
586 # no backup of rebased cset versions needed |
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587 repair.strip(repo.ui, repo, repo[strippoint].node()) |
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588 clearstatus(repo) |
12861
1c57a66bf985
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parents:
12744
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589 repo.ui.warn(_('rebase aborted\n')) |
11205 | 590 return 0 |
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|
591 |
17005
50f434510da6
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Pierre-Yves David <pierre-yves.david@ens-lyon.org>
parents:
16867
diff
changeset
|
592 def buildstate(repo, dest, rebaseset, collapse): |
15267
3bfdfefea2fc
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15219
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changeset
|
593 '''Define which revisions are going to be rebased and where |
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594 |
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595 repo: repo |
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596 dest: context |
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597 rebaseset: set of rev |
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598 ''' |
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599 |
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600 # This check isn't strictly necessary, since mq detects commits over an |
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601 # applied patch. But it prevents messing up the working directory when |
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602 # a partially completed rebase is blocked by mq. |
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603 if 'qtip' in repo.tags() and (dest.node() in |
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604 [s.node for s in repo.mq.applied]): |
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605 raise util.Abort(_('cannot rebase onto an applied mq patch')) |
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606 |
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607 roots = list(repo.set('roots(%ld)', rebaseset)) |
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608 if not roots: |
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609 raise util.Abort(_('no matching revisions')) |
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610 if len(roots) > 1: |
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611 raise util.Abort(_("can't rebase multiple roots")) |
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612 root = roots[0] |
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613 |
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614 commonbase = root.ancestor(dest) |
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615 if commonbase == root: |
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616 raise util.Abort(_('source is ancestor of destination')) |
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617 if commonbase == dest: |
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618 samebranch = root.branch() == dest.branch() |
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619 if not collapse and samebranch and root in dest.children(): |
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620 repo.ui.debug('source is a child of destination\n') |
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621 return None |
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622 |
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623 repo.ui.debug('rebase onto %d starting from %d\n' % (dest, root)) |
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624 state = dict.fromkeys(rebaseset, nullrev) |
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625 # Rebase tries to turn <dest> into a parent of <root> while |
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626 # preserving the number of parents of rebased changesets: |
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627 # |
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628 # - A changeset with a single parent will always be rebased as a |
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629 # changeset with a single parent. |
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630 # |
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631 # - A merge will be rebased as merge unless its parents are both |
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632 # ancestors of <dest> or are themselves in the rebased set and |
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633 # pruned while rebased. |
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634 # |
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635 # If one parent of <root> is an ancestor of <dest>, the rebased |
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636 # version of this parent will be <dest>. This is always true with |
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637 # --base option. |
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638 # |
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639 # Otherwise, we need to *replace* the original parents with |
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640 # <dest>. This "detaches" the rebased set from its former location |
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641 # and rebases it onto <dest>. Changes introduced by ancestors of |
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642 # <root> not common with <dest> (the detachset, marked as |
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643 # nullmerge) are "removed" from the rebased changesets. |
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644 # |
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645 # - If <root> has a single parent, set it to <dest>. |
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646 # |
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647 # - If <root> is a merge, we cannot decide which parent to |
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648 # replace, the rebase operation is not clearly defined. |
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649 # |
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650 # The table below sums up this behavior: |
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651 # |
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652 # +--------------------+----------------------+-------------------------+ |
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653 # | | one parent | merge | |
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654 # +--------------------+----------------------+-------------------------+ |
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655 # | parent in ::<dest> | new parent is <dest> | parents in ::<dest> are | |
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656 # | | | remapped to <dest> | |
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657 # +--------------------+----------------------+-------------------------+ |
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658 # | unrelated source | new parent is <dest> | ambiguous, abort | |
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659 # +--------------------+----------------------+-------------------------+ |
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660 # |
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661 # The actual abort is handled by `defineparents` |
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662 if len(root.parents()) <= 1: |
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663 # (strict) ancestors of <root> not ancestors of <dest> |
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664 detachset = repo.revs('::%d - ::%d - %d', root, commonbase, root) |
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665 state.update(dict.fromkeys(detachset, nullmerge)) |
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666 return repo['.'].rev(), dest.rev(), state |
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667 |
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668 def pullrebase(orig, ui, repo, *args, **opts): |
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669 'Call rebase after pull if the latter has been invoked with --rebase' |
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670 if opts.get('rebase'): |
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671 if opts.get('update'): |
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672 del opts['update'] |
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673 ui.debug('--update and --rebase are not compatible, ignoring ' |
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674 'the update flag\n') |
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675 |
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676 movemarkfrom = repo['.'].node() |
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677 cmdutil.bailifchanged(repo) |
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678 revsprepull = len(repo) |
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679 origpostincoming = commands.postincoming |
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680 def _dummy(*args, **kwargs): |
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681 pass |
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682 commands.postincoming = _dummy |
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683 try: |
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684 orig(ui, repo, *args, **opts) |
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685 finally: |
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686 commands.postincoming = origpostincoming |
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687 revspostpull = len(repo) |
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688 if revspostpull > revsprepull: |
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689 rebase(ui, repo, **opts) |
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690 branch = repo[None].branch() |
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691 dest = repo[branch].rev() |
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692 if dest != repo['.'].rev(): |
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693 # there was nothing to rebase we force an update |
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rebase: improve output of hg pull --rebase (issue2072)
Sune Foldager <cryo@cyanite.org>
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694 hg.update(repo, dest) |
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rebase: move bookmarks as needed with pull --rebase (issue3285)
Matt Mackall <mpm@selenic.com>
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15945
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695 if bookmarks.update(repo, [movemarkfrom], repo['.'].node()): |
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rebase: move bookmarks as needed with pull --rebase (issue3285)
Matt Mackall <mpm@selenic.com>
parents:
15945
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696 ui.status(_("updating bookmark %s\n") |
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rebase: move bookmarks as needed with pull --rebase (issue3285)
Matt Mackall <mpm@selenic.com>
parents:
15945
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697 % repo._bookmarkcurrent) |
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Add rebase extension
Stefano Tortarolo <stefano.tortarolo@gmail.com>
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698 else: |
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rebase: add option --tool/-t for 'pull --rebase'
Adrian Buehlmann <adrian@cadifra.com>
parents:
14306
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699 if opts.get('tool'): |
1f997134a9d1
rebase: add option --tool/-t for 'pull --rebase'
Adrian Buehlmann <adrian@cadifra.com>
parents:
14306
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700 raise util.Abort(_('--tool can only be used with --rebase')) |
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extensions: use new wrapper functions
Matt Mackall <mpm@selenic.com>
parents:
7213
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701 orig(ui, repo, *args, **opts) |
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Stefano Tortarolo <stefano.tortarolo@gmail.com>
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702 |
808f03f61ebe
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Stefano Tortarolo <stefano.tortarolo@gmail.com>
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703 def uisetup(ui): |
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Stefano Tortarolo <stefano.tortarolo@gmail.com>
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704 'Replace pull with a decorator to provide --rebase option' |
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extensions: use new wrapper functions
Matt Mackall <mpm@selenic.com>
parents:
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705 entry = extensions.wrapcommand(commands.table, 'pull', pullrebase) |
292fb2ad2846
extensions: use new wrapper functions
Matt Mackall <mpm@selenic.com>
parents:
7213
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706 entry[1].append(('', 'rebase', None, |
14444
1f997134a9d1
rebase: add option --tool/-t for 'pull --rebase'
Adrian Buehlmann <adrian@cadifra.com>
parents:
14306
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707 _("rebase working directory to branch head"))) |
1f997134a9d1
rebase: add option --tool/-t for 'pull --rebase'
Adrian Buehlmann <adrian@cadifra.com>
parents:
14306
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708 entry[1].append(('t', 'tool', '', |
1f997134a9d1
rebase: add option --tool/-t for 'pull --rebase'
Adrian Buehlmann <adrian@cadifra.com>
parents:
14306
diff
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709 _("specify merge tool for rebase"))) |