Mercurial > hg
annotate mercurial/destutil.py @ 37838:3fe1c9263024
log: consume --stat/patch options at constructor of changesetprinter
The variable name, self.diffopts, was confusing. Let's split it to two
booleans.
author | Yuya Nishihara <yuya@tcha.org> |
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date | Sun, 29 Apr 2018 15:52:01 +0900 |
parents | 92213f6745ed |
children | fbd168455b26 |
rev | line source |
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1 # destutil.py - Mercurial utility function for command destination |
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2 # |
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3 # Copyright Matt Mackall <mpm@selenic.com> and other |
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4 # |
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5 # This software may be used and distributed according to the terms of the |
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6 # GNU General Public License version 2 or any later version. |
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7 |
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8 from __future__ import absolute_import |
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9 |
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10 from .i18n import _ |
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11 from . import ( |
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12 bookmarks, |
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13 error, |
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14 obsutil, |
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15 scmutil, |
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16 stack |
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17 ) |
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18 |
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19 def orphanpossibledestination(repo, rev): |
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20 """Return all changesets that may be a new parent for orphan `rev`. |
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21 |
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22 This function works fine on non-orphan revisions, it's just silly |
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23 because there's no destination implied by obsolete markers, so |
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24 it'll return nothing. |
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25 """ |
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26 tonode = repo.changelog.node |
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27 parents = repo.changelog.parentrevs |
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28 torev = repo.changelog.rev |
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29 dest = set() |
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30 tovisit = list(parents(rev)) |
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31 while tovisit: |
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32 r = tovisit.pop() |
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33 succsets = obsutil.successorssets(repo, tonode(r)) |
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34 if not succsets: |
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35 # if there are no successors for r, r was probably pruned |
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36 # and we should walk up to r's parents to try and find |
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37 # some successors. |
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38 tovisit.extend(parents(r)) |
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39 else: |
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40 # We should probably pick only one destination from split |
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41 # (case where '1 < len(ss)'), This could be the currently |
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42 # tipmost, but the correct result is less clear when |
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43 # results of the split have been moved such that they |
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44 # reside on multiple branches. |
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45 for ss in succsets: |
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46 for n in ss: |
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47 dr = torev(n) |
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48 if dr != -1: |
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49 dest.add(dr) |
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50 return dest |
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51 |
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52 def _destupdateobs(repo, clean): |
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53 """decide of an update destination from obsolescence markers""" |
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54 node = None |
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55 wc = repo[None] |
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56 p1 = wc.p1() |
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57 movemark = None |
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58 |
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59 if p1.obsolete() and not p1.children(): |
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60 # allow updating to successors |
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61 successors = obsutil.successorssets(repo, p1.node()) |
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62 |
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63 # behavior of certain cases is as follows, |
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64 # |
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65 # divergent changesets: update to highest rev, similar to what |
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66 # is currently done when there are more than one head |
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67 # (i.e. 'tip') |
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68 # |
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69 # replaced changesets: same as divergent except we know there |
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70 # is no conflict |
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71 # |
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72 # pruned changeset: no update is done; though, we could |
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73 # consider updating to the first non-obsolete parent, |
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74 # similar to what is current done for 'hg prune' |
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75 |
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76 if successors: |
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77 # flatten the list here handles both divergent (len > 1) |
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78 # and the usual case (len = 1) |
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79 successors = [n for sub in successors for n in sub] |
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80 |
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81 # get the max revision for the given successors set, |
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82 # i.e. the 'tip' of a set |
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83 node = repo.revs('max(%ln)', successors).first() |
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84 if bookmarks.isactivewdirparent(repo): |
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85 movemark = repo['.'].node() |
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86 return node, movemark, None |
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87 |
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88 def _destupdatebook(repo, clean): |
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89 """decide on an update destination from active bookmark""" |
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90 # we also move the active bookmark, if any |
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91 node = None |
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92 activemark, movemark = bookmarks.calculateupdate(repo.ui, repo) |
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93 if activemark is not None: |
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94 node = repo._bookmarks[activemark] |
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95 return node, movemark, activemark |
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96 |
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97 def _destupdatebranch(repo, clean): |
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98 """decide on an update destination from current branch |
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99 |
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100 This ignores closed branch heads. |
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101 """ |
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102 wc = repo[None] |
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103 movemark = node = None |
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104 currentbranch = wc.branch() |
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105 |
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106 if clean: |
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107 currentbranch = repo['.'].branch() |
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108 |
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109 if currentbranch in repo.branchmap(): |
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110 heads = repo.branchheads(currentbranch) |
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111 if heads: |
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112 node = repo.revs('max(.::(%ln))', heads).first() |
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113 if bookmarks.isactivewdirparent(repo): |
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114 movemark = repo['.'].node() |
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115 elif currentbranch == 'default' and not wc.p1(): |
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116 # "null" parent belongs to "default" branch, but it doesn't exist, so |
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117 # update to the tipmost non-closed branch head |
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118 node = repo.revs('max(head() and not closed())').first() |
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119 else: |
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120 node = repo['.'].node() |
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121 return node, movemark, None |
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122 |
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123 def _destupdatebranchfallback(repo, clean): |
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124 """decide on an update destination from closed heads in current branch""" |
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125 wc = repo[None] |
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126 currentbranch = wc.branch() |
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127 movemark = None |
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128 if currentbranch in repo.branchmap(): |
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129 # here, all descendant branch heads are closed |
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130 heads = repo.branchheads(currentbranch, closed=True) |
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131 assert heads, "any branch has at least one head" |
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132 node = repo.revs('max(.::(%ln))', heads).first() |
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133 assert node is not None, ("any revision has at least " |
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134 "one descendant branch head") |
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135 if bookmarks.isactivewdirparent(repo): |
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136 movemark = repo['.'].node() |
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137 else: |
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138 # here, no "default" branch, and all branches are closed |
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139 node = repo.lookup('tip') |
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140 assert node is not None, "'tip' exists even in empty repository" |
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141 return node, movemark, None |
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142 |
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143 # order in which each step should be evaluated |
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144 # steps are run until one finds a destination |
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145 destupdatesteps = ['evolution', 'bookmark', 'branch', 'branchfallback'] |
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146 # mapping to ease extension overriding steps. |
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147 destupdatestepmap = {'evolution': _destupdateobs, |
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148 'bookmark': _destupdatebook, |
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149 'branch': _destupdatebranch, |
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150 'branchfallback': _destupdatebranchfallback, |
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151 } |
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152 |
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153 def destupdate(repo, clean=False): |
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154 """destination for bare update operation |
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155 |
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156 return (rev, movemark, activemark) |
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157 |
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158 - rev: the revision to update to, |
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159 - movemark: node to move the active bookmark from |
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160 (cf bookmark.calculate update), |
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161 - activemark: a bookmark to activate at the end of the update. |
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162 """ |
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163 node = movemark = activemark = None |
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164 |
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165 for step in destupdatesteps: |
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166 node, movemark, activemark = destupdatestepmap[step](repo, clean) |
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167 if node is not None: |
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168 break |
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169 rev = repo[node].rev() |
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170 |
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171 return rev, movemark, activemark |
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172 |
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173 msgdestmerge = { |
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174 # too many matching divergent bookmark |
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175 'toomanybookmarks': |
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176 {'merge': |
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177 (_("multiple matching bookmarks to merge -" |
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178 " please merge with an explicit rev or bookmark"), |
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179 _("run 'hg heads' to see all heads")), |
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180 'rebase': |
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181 (_("multiple matching bookmarks to rebase -" |
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182 " please rebase to an explicit rev or bookmark"), |
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183 _("run 'hg heads' to see all heads")), |
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184 }, |
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185 # no other matching divergent bookmark |
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186 'nootherbookmarks': |
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187 {'merge': |
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188 (_("no matching bookmark to merge - " |
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189 "please merge with an explicit rev or bookmark"), |
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190 _("run 'hg heads' to see all heads")), |
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191 'rebase': |
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192 (_("no matching bookmark to rebase - " |
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193 "please rebase to an explicit rev or bookmark"), |
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194 _("run 'hg heads' to see all heads")), |
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195 }, |
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196 # branch have too many unbookmarked heads, no obvious destination |
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197 'toomanyheads': |
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198 {'merge': |
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199 (_("branch '%s' has %d heads - please merge with an explicit rev"), |
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200 _("run 'hg heads .' to see heads")), |
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201 'rebase': |
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202 (_("branch '%s' has %d heads - please rebase to an explicit rev"), |
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203 _("run 'hg heads .' to see heads")), |
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204 }, |
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205 # branch have no other unbookmarked heads |
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206 'bookmarkedheads': |
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207 {'merge': |
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208 (_("heads are bookmarked - please merge with an explicit rev"), |
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209 _("run 'hg heads' to see all heads")), |
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210 'rebase': |
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211 (_("heads are bookmarked - please rebase to an explicit rev"), |
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212 _("run 'hg heads' to see all heads")), |
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213 }, |
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214 # branch have just a single heads, but there is other branches |
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215 'nootherbranchheads': |
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216 {'merge': |
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217 (_("branch '%s' has one head - please merge with an explicit rev"), |
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218 _("run 'hg heads' to see all heads")), |
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219 'rebase': |
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220 (_("branch '%s' has one head - please rebase to an explicit rev"), |
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221 _("run 'hg heads' to see all heads")), |
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222 }, |
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223 # repository have a single head |
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224 'nootherheads': |
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225 {'merge': |
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226 (_('nothing to merge'), |
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227 None), |
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228 'rebase': |
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229 (_('nothing to rebase'), |
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230 None), |
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231 }, |
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232 # repository have a single head and we are not on it |
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233 'nootherheadsbehind': |
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234 {'merge': |
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235 (_('nothing to merge'), |
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236 _("use 'hg update' instead")), |
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237 'rebase': |
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238 (_('nothing to rebase'), |
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239 _("use 'hg update' instead")), |
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240 }, |
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241 # We are not on a head |
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242 'notatheads': |
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243 {'merge': |
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244 (_('working directory not at a head revision'), |
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245 _("use 'hg update' or merge with an explicit revision")), |
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246 'rebase': |
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247 (_('working directory not at a head revision'), |
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248 _("use 'hg update' or rebase to an explicit revision")) |
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249 }, |
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250 'emptysourceset': |
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251 {'merge': |
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252 (_('source set is empty'), |
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253 None), |
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254 'rebase': |
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255 (_('source set is empty'), |
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256 None), |
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257 }, |
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258 'multiplebranchessourceset': |
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259 {'merge': |
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260 (_('source set is rooted in multiple branches'), |
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261 None), |
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262 'rebase': |
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263 (_('rebaseset is rooted in multiple named branches'), |
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264 _('specify an explicit destination with --dest')), |
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265 }, |
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266 } |
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267 |
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268 def _destmergebook(repo, action='merge', sourceset=None, destspace=None): |
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269 """find merge destination in the active bookmark case""" |
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270 node = None |
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271 bmheads = bookmarks.headsforactive(repo) |
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272 curhead = repo._bookmarks[repo._activebookmark] |
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273 if len(bmheads) == 2: |
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274 if curhead == bmheads[0]: |
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275 node = bmheads[1] |
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276 else: |
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277 node = bmheads[0] |
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278 elif len(bmheads) > 2: |
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279 msg, hint = msgdestmerge['toomanybookmarks'][action] |
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280 raise error.ManyMergeDestAbort(msg, hint=hint) |
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281 elif len(bmheads) <= 1: |
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282 msg, hint = msgdestmerge['nootherbookmarks'][action] |
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283 raise error.NoMergeDestAbort(msg, hint=hint) |
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284 assert node is not None |
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285 return node |
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286 |
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287 def _destmergebranch(repo, action='merge', sourceset=None, onheadcheck=True, |
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288 destspace=None): |
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289 """find merge destination based on branch heads""" |
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290 node = None |
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291 |
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292 if sourceset is None: |
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293 sourceset = [repo[repo.dirstate.p1()].rev()] |
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294 branch = repo.dirstate.branch() |
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295 elif not sourceset: |
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296 msg, hint = msgdestmerge['emptysourceset'][action] |
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297 raise error.NoMergeDestAbort(msg, hint=hint) |
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298 else: |
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299 branch = None |
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300 for ctx in repo.set('roots(%ld::%ld)', sourceset, sourceset): |
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301 if branch is not None and ctx.branch() != branch: |
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302 msg, hint = msgdestmerge['multiplebranchessourceset'][action] |
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303 raise error.ManyMergeDestAbort(msg, hint=hint) |
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304 branch = ctx.branch() |
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305 |
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306 bheads = repo.branchheads(branch) |
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307 onhead = repo.revs('%ld and %ln', sourceset, bheads) |
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308 if onheadcheck and not onhead: |
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309 # Case A: working copy if not on a head. (merge only) |
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310 # |
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311 # This is probably a user mistake We bailout pointing at 'hg update' |
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312 if len(repo.heads()) <= 1: |
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313 msg, hint = msgdestmerge['nootherheadsbehind'][action] |
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314 else: |
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315 msg, hint = msgdestmerge['notatheads'][action] |
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316 raise error.Abort(msg, hint=hint) |
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317 # remove heads descendants of source from the set |
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318 bheads = list(repo.revs('%ln - (%ld::)', bheads, sourceset)) |
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319 # filters out bookmarked heads |
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320 nbhs = list(repo.revs('%ld - bookmark()', bheads)) |
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321 |
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322 if destspace is not None: |
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323 # restrict search space |
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324 # used in the 'hg pull --rebase' case, see issue 5214. |
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325 nbhs = list(repo.revs('%ld and %ld', destspace, nbhs)) |
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326 |
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327 if len(nbhs) > 1: |
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328 # Case B: There is more than 1 other anonymous heads |
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329 # |
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330 # This means that there will be more than 1 candidate. This is |
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331 # ambiguous. We abort asking the user to pick as explicit destination |
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332 # instead. |
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333 msg, hint = msgdestmerge['toomanyheads'][action] |
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334 msg %= (branch, len(bheads) + 1) |
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335 raise error.ManyMergeDestAbort(msg, hint=hint) |
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336 elif not nbhs: |
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337 # Case B: There is no other anonymous heads |
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338 # |
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339 # This means that there is no natural candidate to merge with. |
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340 # We abort, with various messages for various cases. |
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341 if bheads: |
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342 msg, hint = msgdestmerge['bookmarkedheads'][action] |
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343 elif len(repo.heads()) > 1: |
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344 msg, hint = msgdestmerge['nootherbranchheads'][action] |
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345 msg %= branch |
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346 elif not onhead: |
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347 # if 'onheadcheck == False' (rebase case), |
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348 # this was not caught in Case A. |
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349 msg, hint = msgdestmerge['nootherheadsbehind'][action] |
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350 else: |
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351 msg, hint = msgdestmerge['nootherheads'][action] |
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352 raise error.NoMergeDestAbort(msg, hint=hint) |
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353 else: |
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354 node = nbhs[0] |
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355 assert node is not None |
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356 return node |
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357 |
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358 def destmerge(repo, action='merge', sourceset=None, onheadcheck=True, |
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359 destspace=None): |
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360 """return the default destination for a merge |
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361 |
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362 (or raise exception about why it can't pick one) |
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363 |
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364 :action: the action being performed, controls emitted error message |
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365 """ |
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366 # destspace is here to work around issues with `hg pull --rebase` see |
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367 # issue5214 for details |
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368 if repo._activebookmark: |
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369 node = _destmergebook(repo, action=action, sourceset=sourceset, |
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370 destspace=destspace) |
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371 else: |
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372 node = _destmergebranch(repo, action=action, sourceset=sourceset, |
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373 onheadcheck=onheadcheck, destspace=destspace) |
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374 return repo[node].rev() |
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375 |
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376 def desthistedit(ui, repo): |
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377 """Default base revision to edit for `hg histedit`.""" |
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378 default = ui.config('histedit', 'defaultrev') |
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379 |
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380 if default is None: |
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381 revs = stack.getstack(repo) |
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382 elif default: |
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383 revs = scmutil.revrange(repo, [default]) |
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384 |
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385 if revs: |
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386 # Take the first revision of the revset as the root |
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387 return revs.min() |
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388 |
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389 return None |
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390 |
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391 def stackbase(ui, repo): |
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392 revs = stack.getstack(repo) |
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393 return revs.first() if revs else None |
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394 |
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395 def _statusotherbook(ui, repo): |
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396 bmheads = bookmarks.headsforactive(repo) |
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397 curhead = repo._bookmarks[repo._activebookmark] |
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398 if repo.revs('%n and parents()', curhead): |
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399 # we are on the active bookmark |
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400 bmheads = [b for b in bmheads if curhead != b] |
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401 if bmheads: |
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402 msg = _('%i other divergent bookmarks for "%s"\n') |
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403 ui.status(msg % (len(bmheads), repo._activebookmark)) |
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404 |
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405 def _statusotherbranchheads(ui, repo): |
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406 currentbranch = repo.dirstate.branch() |
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407 allheads = repo.branchheads(currentbranch, closed=True) |
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408 heads = repo.branchheads(currentbranch) |
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409 if repo.revs('%ln and parents()', allheads): |
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410 # we are on a head, even though it might be closed |
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411 # |
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412 # on closed otherheads |
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413 # ========= ========== |
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414 # o 0 all heads for current branch are closed |
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415 # N only descendant branch heads are closed |
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416 # x 0 there is only one non-closed branch head |
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417 # N there are some non-closed branch heads |
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418 # ========= ========== |
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419 otherheads = repo.revs('%ln - parents()', heads) |
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420 if repo['.'].closesbranch(): |
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421 ui.warn(_('no open descendant heads on branch "%s", ' |
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422 'updating to a closed head\n') % |
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423 (currentbranch)) |
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424 if otherheads: |
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425 ui.warn(_("(committing will reopen the head, " |
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426 "use 'hg heads .' to see %i other heads)\n") % |
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427 (len(otherheads))) |
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428 else: |
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429 ui.warn(_('(committing will reopen branch "%s")\n') % |
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430 (currentbranch)) |
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431 elif otherheads: |
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432 curhead = repo['.'] |
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433 ui.status(_('updated to "%s: %s"\n') % (curhead, |
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434 curhead.description().split('\n')[0])) |
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435 ui.status(_('%i other heads for branch "%s"\n') % |
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436 (len(otherheads), currentbranch)) |
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437 |
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438 def statusotherdests(ui, repo): |
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439 """Print message about other head""" |
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440 # XXX we should probably include a hint: |
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441 # - about what to do |
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442 # - how to see such heads |
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443 if repo._activebookmark: |
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444 _statusotherbook(ui, repo) |
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445 else: |
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446 _statusotherbranchheads(ui, repo) |