Mercurial > hg > mercurial-crew-with-dirclash

annotate mercurial/merge.py @ 3255:f05c182430a0

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merge: add rename following Currently disabled by default, enable with [merge] followcopies = 1
author Matt Mackall <mpm@selenic.com>
date Wed, 04 Oct 2006 15:43:27 -0500
parents 751840e739a1
children c93ce7f10f85
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1 # merge.py - directory-level update/merge handling for Mercurial
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2 #
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3 # Copyright 2006 Matt Mackall <mpm@selenic.com>
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4 #
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5 # This software may be used and distributed according to the terms
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6 # of the GNU General Public License, incorporated herein by reference.
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7
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8 from node import *
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9 from i18n import gettext as _
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10 from demandload import *
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11 demandload(globals(), "errno util os tempfile")
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12
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13 def filemerge(repo, fw, fo, fd, my, other, p1, p2, move):
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14 """perform a 3-way merge in the working directory
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15
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16 fw = filename in the working directory and first parent
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17 fo = filename in other parent
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18 fd = destination filename
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19 my = fileid in first parent
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20 other = fileid in second parent
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21 p1, p2 = hex changeset ids for merge command
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22 move = whether to move or copy the file to the destination
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23
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24 TODO:
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25 if fw is copied in the working directory, we get confused
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26 implement move and fd
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27 """
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28
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29 def temp(prefix, ctx):
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30 pre = "%s~%s." % (os.path.basename(ctx.path()), prefix)
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31 (fd, name) = tempfile.mkstemp(prefix=pre)
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32 f = os.fdopen(fd, "wb")
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33 repo.wwrite(ctx.path(), ctx.data(), f)
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34 f.close()
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35 return name
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36
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37 fcm = repo.filectx(fw, fileid=my)
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38 fco = repo.filectx(fo, fileid=other)
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39 fca = fcm.ancestor(fco)
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40 if not fca:
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41 fca = repo.filectx(fw, fileid=-1)
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42 a = repo.wjoin(fw)
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43 b = temp("base", fca)
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44 c = temp("other", fco)
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45
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46 repo.ui.note(_("resolving %s\n") % fw)
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47 repo.ui.debug(_("my %s other %s ancestor %s\n") % (fcm, fco, fca))
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48
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49 cmd = (os.environ.get("HGMERGE") or repo.ui.config("ui", "merge")
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50 or "hgmerge")
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51 r = util.system('%s "%s" "%s" "%s"' % (cmd, a, b, c), cwd=repo.root,
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52 environ={'HG_FILE': fw,
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53 'HG_MY_NODE': p1,
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54 'HG_OTHER_NODE': p2})
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55 if r:
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56 repo.ui.warn(_("merging %s failed!\n") % fw)
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57 else:
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58 if fd != fw:
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59 repo.ui.debug(_("copying %s to %s\n") % (fw, fd))
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60 repo.wwrite(fd, repo.wread(fw))
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61 if move:
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62 repo.ui.debug(_("removing %s\n") % fw)
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63 os.unlink(a)
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64
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65 os.unlink(b)
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66 os.unlink(c)
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67 return r
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68
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69 def checkunknown(repo, m2, wctx):
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70 """
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71 check for collisions between unknown files and files in m2
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72 """
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73 for f in wctx.unknown():
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74 if f in m2:
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75 if repo.file(f).cmp(m2[f], repo.wread(f)):
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76 raise util.Abort(_("'%s' already exists in the working"
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77 " dir and differs from remote") % f)
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78
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79 def forgetremoved(m2, wctx):
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80 """
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81 Forget removed files
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82
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83 If we're jumping between revisions (as opposed to merging), and if
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84 neither the working directory nor the target rev has the file,
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85 then we need to remove it from the dirstate, to prevent the
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86 dirstate from listing the file when it is no longer in the
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87 manifest.
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88 """
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89
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90 action = []
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91
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92 for f in wctx.deleted() + wctx.removed():
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93 if f not in m2:
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94 action.append((f, "f"))
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95
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96 return action
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97
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98 def nonoverlap(d1, d2):
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99 """
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100 Return list of elements in d1 not in d2
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101 """
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102
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103 l = []
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104 for d in d1:
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105 if d not in d2:
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106 l.append(d)
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107
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108 l.sort()
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109 return l
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110
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111 def findold(fctx, limit):
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112 """
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113 find files that path was copied from, back to linkrev limit
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114 """
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115
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116 old = {}
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117 orig = fctx.path()
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118 visit = [fctx]
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119 while visit:
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120 fc = visit.pop()
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121 if fc.rev() < limit:
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122 continue
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123 if fc.path() != orig and fc.path() not in old:
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124 old[fc.path()] = 1
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125 visit += fc.parents()
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126
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127 old = old.keys()
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128 old.sort()
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129 return old
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130
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131 def findcopies(repo, m1, m2, limit):
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132 """
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133 Find moves and copies between m1 and m2 back to limit linkrev
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134 """
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135
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136 if not repo.ui.config("merge", "followcopies"):
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137 return {}
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138
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139 # avoid silly behavior for update from empty dir
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140 if not m1:
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141 return {}
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142
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143 dcopies = repo.dirstate.copies()
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144 copy = {}
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145 match = {}
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146 u1 = nonoverlap(m1, m2)
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147 u2 = nonoverlap(m2, m1)
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148 ctx = util.cachefunc(lambda f,n: repo.filectx(f, fileid=n[:20]))
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149
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150 def checkpair(c, f2, man):
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151 ''' check if an apparent pair actually matches '''
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152 c2 = ctx(f2, man[f2])
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diff changeset
153 ca = c.ancestor(c2)
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154 if ca:
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diff changeset
155 copy[c.path()] = f2
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156 copy[f2] = c.path()
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157
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158 for f in u1:
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diff changeset
159 c = ctx(dcopies.get(f, f), m1[f])
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diff changeset
160 for of in findold(c, limit):
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161 if of in m2:
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diff changeset
162 checkpair(c, of, m2)
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163 else:
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diff changeset
164 match.setdefault(of, []).append(f)
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165
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166 for f in u2:
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167 c = ctx(f, m2[f])
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168 for of in findold(c, limit):
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169 if of in m1:
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170 checkpair(c, of, m1)
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diff changeset
171 elif of in match:
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172 for mf in match[of]:
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diff changeset
173 checkpair(c, mf, m1)
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174
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diff changeset
175 return copy
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176
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177 def manifestmerge(ui, m1, m2, ma, copy, overwrite, backwards, partial):
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178 """
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179 Merge manifest m1 with m2 using ancestor ma and generate merge action list
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180 """
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181
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182 def fmerge(f, f2=None, fa=None):
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183 """merge executable flags"""
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184 if not f2:
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185 f2 = f
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186 fa = f
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diff changeset
187 a, b, c = ma.execf(fa), m1.execf(f), m2.execf(f2)
3119
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188 return ((a^b) | (a^c)) ^ a
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189
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190 action = []
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191
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192 def act(msg, f, m, *args):
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diff changeset
193 ui.debug(" %s: %s -> %s\n" % (f, msg, m))
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diff changeset
194 action.append((f, m) + args)
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195
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196 # Compare manifests
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197 for f, n in m1.iteritems():
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198 if partial and not partial(f):
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199 continue
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diff changeset
200 if f in m2:
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diff changeset
201 # are files different?
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202 if n != m2[f]:
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diff changeset
203 a = ma.get(f, nullid)
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diff changeset
204 # are both different from the ancestor?
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diff changeset
205 if not overwrite and n != a and m2[f] != a:
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diff changeset
206 act("versions differ", f, "m", fmerge(f), n[:20], m2[f])
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diff changeset
207 # are we clobbering?
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diff changeset
208 # is remote's version newer?
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diff changeset
209 # or are we going back in time and clean?
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diff changeset
210 elif overwrite or m2[f] != a or (backwards and not n[20:]):
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diff changeset
211 act("remote is newer", f, "g", m2.execf(f), m2[f])
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diff changeset
212 # local is newer, not overwrite, check mode bits
3119
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213 elif fmerge(f) != m1.execf(f):
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diff changeset
214 act("update permissions", f, "e", m2.execf(f))
3114
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diff changeset
215 # contents same, check mode bits
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diff changeset
216 elif m1.execf(f) != m2.execf(f):
3121
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parents: 3120
diff changeset
217 if overwrite or fmerge(f) != m1.execf(f):
3122
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diff changeset
218 act("update permissions", f, "e", m2.execf(f))
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diff changeset
219 elif f in copy:
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diff changeset
220 f2 = copy[f]
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diff changeset
221 if f in ma: # case 3,20 A/B/A
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diff changeset
222 act("remote moved",
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diff changeset
223 f, "c", f2, f2, m1[f], m2[f2], fmerge(f, f2, f), True)
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diff changeset
224 else:
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diff changeset
225 if f2 in m1: # case 2 A,B/B/B
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diff changeset
226 act("local copied",
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diff changeset
227 f, "c", f2, f, m1[f], m2[f2], fmerge(f, f2, f2), False)
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diff changeset
228 else: # case 4,21 A/B/B
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diff changeset
229 act("local moved",
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diff changeset
230 f, "c", f2, f, m1[f], m2[f2], fmerge(f, f2, f2), False)
3106
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diff changeset
231 elif f in ma:
3118
7a635ef25132 merge: simplify tests for local changed/remote deleted
Matt Mackall <mpm@selenic.com>
parents: 3117
diff changeset
232 if n != ma[f] and not overwrite:
3120
b1de36a4b4df merge: simplify prompt code
Matt Mackall <mpm@selenic.com>
parents: 3119
diff changeset
233 if ui.prompt(
3118
7a635ef25132 merge: simplify tests for local changed/remote deleted
Matt Mackall <mpm@selenic.com>
parents: 3117
diff changeset
234 (_(" local changed %s which remote deleted\n") % f) +
3120
b1de36a4b4df merge: simplify prompt code
Matt Mackall <mpm@selenic.com>
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diff changeset
235 _("(k)eep or (d)elete?"), _("[kd]"), _("k")) == _("d"):
3122
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diff changeset
236 act("prompt delete", f, "r")
3106
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diff changeset
237 else:
3122
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diff changeset
238 act("other deleted", f, "r")
3106
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diff changeset
239 else:
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diff changeset
240 # file is created on branch or in working directory
3121
1c1e59aac82a merge: simplify local created logic
Matt Mackall <mpm@selenic.com>
parents: 3120
diff changeset
241 if (overwrite and n[20:] != "u") or (backwards and not n[20:]):
3122
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parents: 3121
diff changeset
242 act("remote deleted", f, "r")
3106
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diff changeset
243
7c7469d41ade merge: pull manifest comparison out into separate function
Matt Mackall <mpm@selenic.com>
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diff changeset
244 for f, n in m2.iteritems():
3254
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diff changeset
245 if partial and not partial(f):
751840e739a1 merge: reduce manifest copying
Matt Mackall <mpm@selenic.com>
parents: 3248
diff changeset
246 continue
751840e739a1 merge: reduce manifest copying
Matt Mackall <mpm@selenic.com>
parents: 3248
diff changeset
247 if f in m1:
751840e739a1 merge: reduce manifest copying
Matt Mackall <mpm@selenic.com>
parents: 3248
diff changeset
248 continue
3255
f05c182430a0 merge: add rename following
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diff changeset
249 if f in copy:
f05c182430a0 merge: add rename following
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diff changeset
250 f2 = copy[f]
f05c182430a0 merge: add rename following
Matt Mackall <mpm@selenic.com>
parents: 3254
diff changeset
251 if f2 in ma or f2 in m1: # already seen
f05c182430a0 merge: add rename following
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diff changeset
252 continue
f05c182430a0 merge: add rename following
Matt Mackall <mpm@selenic.com>
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diff changeset
253 # rename case 1, A/A,B/A
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Matt Mackall <mpm@selenic.com>
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diff changeset
254 act("remote copied",
f05c182430a0 merge: add rename following
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diff changeset
255 f, "c", f2, f, m1[f2], m2[f], fmerge(f2, f, f2), False)
f05c182430a0 merge: add rename following
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diff changeset
256 elif f in ma:
3117
920f54a2249e merge: more simplification of m2 manifest scanning
Matt Mackall <mpm@selenic.com>
parents: 3116
diff changeset
257 if overwrite or backwards:
3122
2ef0b3aae186 merge: simplify actions with helper function
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diff changeset
258 act("recreating", f, "g", m2.execf(f), n)
3117
920f54a2249e merge: more simplification of m2 manifest scanning
Matt Mackall <mpm@selenic.com>
parents: 3116
diff changeset
259 elif n != ma[f]:
3120
b1de36a4b4df merge: simplify prompt code
Matt Mackall <mpm@selenic.com>
parents: 3119
diff changeset
260 if ui.prompt(
3117
920f54a2249e merge: more simplification of m2 manifest scanning
Matt Mackall <mpm@selenic.com>
parents: 3116
diff changeset
261 (_("remote changed %s which local deleted\n") % f) +
3120
b1de36a4b4df merge: simplify prompt code
Matt Mackall <mpm@selenic.com>
parents: 3119
diff changeset
262 _("(k)eep or (d)elete?"), _("[kd]"), _("k")) == _("k"):
3122
2ef0b3aae186 merge: simplify actions with helper function
Matt Mackall <mpm@selenic.com>
parents: 3121
diff changeset
263 act("prompt recreating", f, "g", m2.execf(f), n)
3116
bb74f809bc95 merge: reorder tests on m2 items in manifestmerge
Matt Mackall <mpm@selenic.com>
parents: 3115
diff changeset
264 else:
3122
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diff changeset
265 act("remote created", f, "g", m2.execf(f), n)
3106
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diff changeset
266
7c7469d41ade merge: pull manifest comparison out into separate function
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diff changeset
267 return action
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parents: 3105
diff changeset
268
3112
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diff changeset
269 def applyupdates(repo, action, xp1, xp2):
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parents: 3111
diff changeset
270 updated, merged, removed, unresolved = 0, 0, 0, 0
5cc62d99b785 merge: move apply and dirstate code into separate functions
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parents: 3111
diff changeset
271 action.sort()
5cc62d99b785 merge: move apply and dirstate code into separate functions
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parents: 3111
diff changeset
272 for a in action:
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diff changeset
273 f, m = a[:2]
5cc62d99b785 merge: move apply and dirstate code into separate functions
Matt Mackall <mpm@selenic.com>
parents: 3111
diff changeset
274 if f[0] == "/":
5cc62d99b785 merge: move apply and dirstate code into separate functions
Matt Mackall <mpm@selenic.com>
parents: 3111
diff changeset
275 continue
5cc62d99b785 merge: move apply and dirstate code into separate functions
Matt Mackall <mpm@selenic.com>
parents: 3111
diff changeset
276 if m == "r": # remove
5cc62d99b785 merge: move apply and dirstate code into separate functions
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parents: 3111
diff changeset
277 repo.ui.note(_("removing %s\n") % f)
5cc62d99b785 merge: move apply and dirstate code into separate functions
Matt Mackall <mpm@selenic.com>
parents: 3111
diff changeset
278 util.audit_path(f)
5cc62d99b785 merge: move apply and dirstate code into separate functions
Matt Mackall <mpm@selenic.com>
parents: 3111
diff changeset
279 try:
5cc62d99b785 merge: move apply and dirstate code into separate functions
Matt Mackall <mpm@selenic.com>
parents: 3111
diff changeset
280 util.unlink(repo.wjoin(f))
5cc62d99b785 merge: move apply and dirstate code into separate functions
Matt Mackall <mpm@selenic.com>
parents: 3111
diff changeset
281 except OSError, inst:
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parents: 3111
diff changeset
282 if inst.errno != errno.ENOENT:
5cc62d99b785 merge: move apply and dirstate code into separate functions
Matt Mackall <mpm@selenic.com>
parents: 3111
diff changeset
283 repo.ui.warn(_("update failed to remove %s: %s!\n") %
5cc62d99b785 merge: move apply and dirstate code into separate functions
Matt Mackall <mpm@selenic.com>
parents: 3111
diff changeset
284 (f, inst.strerror))
5cc62d99b785 merge: move apply and dirstate code into separate functions
Matt Mackall <mpm@selenic.com>
parents: 3111
diff changeset
285 removed +=1
3255
f05c182430a0 merge: add rename following
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parents: 3254
diff changeset
286 elif m == "c": # copy
f05c182430a0 merge: add rename following
Matt Mackall <mpm@selenic.com>
parents: 3254
diff changeset
287 f2, fd, my, other, flag, remove = a[2:]
f05c182430a0 merge: add rename following
Matt Mackall <mpm@selenic.com>
parents: 3254
diff changeset
288 if filemerge(repo, f, f2, fd, my, other, xp1, xp2, remove):
f05c182430a0 merge: add rename following
Matt Mackall <mpm@selenic.com>
parents: 3254
diff changeset
289 unresolved += 1
f05c182430a0 merge: add rename following
Matt Mackall <mpm@selenic.com>
parents: 3254
diff changeset
290 util.set_exec(repo.wjoin(fd), flag)
f05c182430a0 merge: add rename following
Matt Mackall <mpm@selenic.com>
parents: 3254
diff changeset
291 merged += 1
3112
5cc62d99b785 merge: move apply and dirstate code into separate functions
Matt Mackall <mpm@selenic.com>
parents: 3111
diff changeset
292 elif m == "m": # merge
5cc62d99b785 merge: move apply and dirstate code into separate functions
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parents: 3111
diff changeset
293 flag, my, other = a[2:]
5cc62d99b785 merge: move apply and dirstate code into separate functions
Matt Mackall <mpm@selenic.com>
parents: 3111
diff changeset
294 repo.ui.status(_("merging %s\n") % f)
3234
cac7be0b9b99 merge: remove old merge function
Matt Mackall <mpm@selenic.com>
parents: 3233
diff changeset
295 if filemerge(repo, f, f, f, my, other, xp1, xp2, False):
3112
5cc62d99b785 merge: move apply and dirstate code into separate functions
Matt Mackall <mpm@selenic.com>
parents: 3111
diff changeset
296 unresolved += 1
5cc62d99b785 merge: move apply and dirstate code into separate functions
Matt Mackall <mpm@selenic.com>
parents: 3111
diff changeset
297 util.set_exec(repo.wjoin(f), flag)
5cc62d99b785 merge: move apply and dirstate code into separate functions
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parents: 3111
diff changeset
298 merged += 1
5cc62d99b785 merge: move apply and dirstate code into separate functions
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parents: 3111
diff changeset
299 elif m == "g": # get
5cc62d99b785 merge: move apply and dirstate code into separate functions
Matt Mackall <mpm@selenic.com>
parents: 3111
diff changeset
300 flag, node = a[2:]
5cc62d99b785 merge: move apply and dirstate code into separate functions
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parents: 3111
diff changeset
301 repo.ui.note(_("getting %s\n") % f)
5cc62d99b785 merge: move apply and dirstate code into separate functions
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parents: 3111
diff changeset
302 t = repo.file(f).read(node)
5cc62d99b785 merge: move apply and dirstate code into separate functions
Matt Mackall <mpm@selenic.com>
parents: 3111
diff changeset
303 repo.wwrite(f, t)
5cc62d99b785 merge: move apply and dirstate code into separate functions
Matt Mackall <mpm@selenic.com>
parents: 3111
diff changeset
304 util.set_exec(repo.wjoin(f), flag)
5cc62d99b785 merge: move apply and dirstate code into separate functions
Matt Mackall <mpm@selenic.com>
parents: 3111
diff changeset
305 updated += 1
5cc62d99b785 merge: move apply and dirstate code into separate functions
Matt Mackall <mpm@selenic.com>
parents: 3111
diff changeset
306 elif m == "e": # exec
5cc62d99b785 merge: move apply and dirstate code into separate functions
Matt Mackall <mpm@selenic.com>
parents: 3111
diff changeset
307 flag = a[2:]
5cc62d99b785 merge: move apply and dirstate code into separate functions
Matt Mackall <mpm@selenic.com>
parents: 3111
diff changeset
308 util.set_exec(repo.wjoin(f), flag)
5cc62d99b785 merge: move apply and dirstate code into separate functions
Matt Mackall <mpm@selenic.com>
parents: 3111
diff changeset
309
5cc62d99b785 merge: move apply and dirstate code into separate functions
Matt Mackall <mpm@selenic.com>
parents: 3111
diff changeset
310 return updated, merged, removed, unresolved
5cc62d99b785 merge: move apply and dirstate code into separate functions
Matt Mackall <mpm@selenic.com>
parents: 3111
diff changeset
311
5cc62d99b785 merge: move apply and dirstate code into separate functions
Matt Mackall <mpm@selenic.com>
parents: 3111
diff changeset
312 def recordupdates(repo, action, branchmerge):
5cc62d99b785 merge: move apply and dirstate code into separate functions
Matt Mackall <mpm@selenic.com>
parents: 3111
diff changeset
313 for a in action:
5cc62d99b785 merge: move apply and dirstate code into separate functions
Matt Mackall <mpm@selenic.com>
parents: 3111
diff changeset
314 f, m = a[:2]
5cc62d99b785 merge: move apply and dirstate code into separate functions
Matt Mackall <mpm@selenic.com>
parents: 3111
diff changeset
315 if m == "r": # remove
5cc62d99b785 merge: move apply and dirstate code into separate functions
Matt Mackall <mpm@selenic.com>
parents: 3111
diff changeset
316 if branchmerge:
5cc62d99b785 merge: move apply and dirstate code into separate functions
Matt Mackall <mpm@selenic.com>
parents: 3111
diff changeset
317 repo.dirstate.update([f], 'r')
5cc62d99b785 merge: move apply and dirstate code into separate functions
Matt Mackall <mpm@selenic.com>
parents: 3111
diff changeset
318 else:
5cc62d99b785 merge: move apply and dirstate code into separate functions
Matt Mackall <mpm@selenic.com>
parents: 3111
diff changeset
319 repo.dirstate.forget([f])
5cc62d99b785 merge: move apply and dirstate code into separate functions
Matt Mackall <mpm@selenic.com>
parents: 3111
diff changeset
320 elif m == "f": # forget
5cc62d99b785 merge: move apply and dirstate code into separate functions
Matt Mackall <mpm@selenic.com>
parents: 3111
diff changeset
321 repo.dirstate.forget([f])
5cc62d99b785 merge: move apply and dirstate code into separate functions
Matt Mackall <mpm@selenic.com>
parents: 3111
diff changeset
322 elif m == "g": # get
5cc62d99b785 merge: move apply and dirstate code into separate functions
Matt Mackall <mpm@selenic.com>
parents: 3111
diff changeset
323 if branchmerge:
5cc62d99b785 merge: move apply and dirstate code into separate functions
Matt Mackall <mpm@selenic.com>
parents: 3111
diff changeset
324 repo.dirstate.update([f], 'n', st_mtime=-1)
5cc62d99b785 merge: move apply and dirstate code into separate functions
Matt Mackall <mpm@selenic.com>
parents: 3111
diff changeset
325 else:
5cc62d99b785 merge: move apply and dirstate code into separate functions
Matt Mackall <mpm@selenic.com>
parents: 3111
diff changeset
326 repo.dirstate.update([f], 'n')
5cc62d99b785 merge: move apply and dirstate code into separate functions
Matt Mackall <mpm@selenic.com>
parents: 3111
diff changeset
327 elif m == "m": # merge
5cc62d99b785 merge: move apply and dirstate code into separate functions
Matt Mackall <mpm@selenic.com>
parents: 3111
diff changeset
328 flag, my, other = a[2:]
5cc62d99b785 merge: move apply and dirstate code into separate functions
Matt Mackall <mpm@selenic.com>
parents: 3111
diff changeset
329 if branchmerge:
5cc62d99b785 merge: move apply and dirstate code into separate functions
Matt Mackall <mpm@selenic.com>
parents: 3111
diff changeset
330 # We've done a branch merge, mark this file as merged
5cc62d99b785 merge: move apply and dirstate code into separate functions
Matt Mackall <mpm@selenic.com>
parents: 3111
diff changeset
331 # so that we properly record the merger later
5cc62d99b785 merge: move apply and dirstate code into separate functions
Matt Mackall <mpm@selenic.com>
parents: 3111
diff changeset
332 repo.dirstate.update([f], 'm')
5cc62d99b785 merge: move apply and dirstate code into separate functions
Matt Mackall <mpm@selenic.com>
parents: 3111
diff changeset
333 else:
5cc62d99b785 merge: move apply and dirstate code into separate functions
Matt Mackall <mpm@selenic.com>
parents: 3111
diff changeset
334 # We've update-merged a locally modified file, so
5cc62d99b785 merge: move apply and dirstate code into separate functions
Matt Mackall <mpm@selenic.com>
parents: 3111
diff changeset
335 # we set the dirstate to emulate a normal checkout
5cc62d99b785 merge: move apply and dirstate code into separate functions
Matt Mackall <mpm@selenic.com>
parents: 3111
diff changeset
336 # of that file some time in the past. Thus our
5cc62d99b785 merge: move apply and dirstate code into separate functions
Matt Mackall <mpm@selenic.com>
parents: 3111
diff changeset
337 # merge will appear as a normal local file
5cc62d99b785 merge: move apply and dirstate code into separate functions
Matt Mackall <mpm@selenic.com>
parents: 3111
diff changeset
338 # modification.
5cc62d99b785 merge: move apply and dirstate code into separate functions
Matt Mackall <mpm@selenic.com>
parents: 3111
diff changeset
339 fl = repo.file(f)
5cc62d99b785 merge: move apply and dirstate code into separate functions
Matt Mackall <mpm@selenic.com>
parents: 3111
diff changeset
340 f_len = fl.size(fl.rev(other))
5cc62d99b785 merge: move apply and dirstate code into separate functions
Matt Mackall <mpm@selenic.com>
parents: 3111
diff changeset
341 repo.dirstate.update([f], 'n', st_size=f_len, st_mtime=-1)
5cc62d99b785 merge: move apply and dirstate code into separate functions
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parents: 3111
diff changeset
342
2825
1ea086bc2086 Merge: combine choose and moddirstate to partial
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parents: 2824
diff changeset
343 def update(repo, node, branchmerge=False, force=False, partial=None,
2829
4870f795f681 Merge: combine force and forcemerge arguments
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parents: 2828
diff changeset
344 wlock=None, show_stats=True, remind=True):
4870f795f681 Merge: combine force and forcemerge arguments
Matt Mackall <mpm@selenic.com>
parents: 2828
diff changeset
345
4870f795f681 Merge: combine force and forcemerge arguments
Matt Mackall <mpm@selenic.com>
parents: 2828
diff changeset
346 overwrite = force and not branchmerge
4870f795f681 Merge: combine force and forcemerge arguments
Matt Mackall <mpm@selenic.com>
parents: 2828
diff changeset
347 forcemerge = force and branchmerge
2826
3aeab7bb5adc Refactor update locking slightly
Matt Mackall <mpm@selenic.com>
parents: 2825
diff changeset
348
3aeab7bb5adc Refactor update locking slightly
Matt Mackall <mpm@selenic.com>
parents: 2825
diff changeset
349 if not wlock:
3aeab7bb5adc Refactor update locking slightly
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parents: 2825
diff changeset
350 wlock = repo.wlock()
3aeab7bb5adc Refactor update locking slightly
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parents: 2825
diff changeset
351
2828
0f787997e3c2 Merge: move most tests to the beginning
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diff changeset
352 ### check phase
0f787997e3c2 Merge: move most tests to the beginning
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parents: 2827
diff changeset
353
3240
8d4855fd9d7b merge: use new working context object in update
Matt Mackall <mpm@selenic.com>
parents: 3234
diff changeset
354 wc = repo.workingctx()
8d4855fd9d7b merge: use new working context object in update
Matt Mackall <mpm@selenic.com>
parents: 3234
diff changeset
355 pl = wc.parents()
3200
e67c22bc8bba merge: use repo.parents and parent contexts in update
Matt Mackall <mpm@selenic.com>
parents: 3163
diff changeset
356 if not overwrite and len(pl) > 1:
2799
b550cd82f92a Move merge code to its own module
Matt Mackall <mpm@selenic.com>
parents:
diff changeset
357 raise util.Abort(_("outstanding uncommitted merges"))
b550cd82f92a Move merge code to its own module
Matt Mackall <mpm@selenic.com>
parents:
diff changeset
358
3200
e67c22bc8bba merge: use repo.parents and parent contexts in update
Matt Mackall <mpm@selenic.com>
parents: 3163
diff changeset
359 p1, p2 = pl[0], repo.changectx(node)
e67c22bc8bba merge: use repo.parents and parent contexts in update
Matt Mackall <mpm@selenic.com>
parents: 3163
diff changeset
360 pa = p1.ancestor(p2)
2828
0f787997e3c2 Merge: move most tests to the beginning
Matt Mackall <mpm@selenic.com>
parents: 2827
diff changeset
361
2997
545d33aa3f82 merge: add backwards variable
Matt Mackall <mpm@selenic.com>
parents: 2919
diff changeset
362 # are we going backwards?
545d33aa3f82 merge: add backwards variable
Matt Mackall <mpm@selenic.com>
parents: 2919
diff changeset
363 backwards = (pa == p2)
545d33aa3f82 merge: add backwards variable
Matt Mackall <mpm@selenic.com>
parents: 2919
diff changeset
364
2828
0f787997e3c2 Merge: move most tests to the beginning
Matt Mackall <mpm@selenic.com>
parents: 2827
diff changeset
365 # is there a linear path from p1 to p2?
3111
40e777bda455 merge: remove linear variable
Matt Mackall <mpm@selenic.com>
parents: 3110
diff changeset
366 if pa == p1 or pa == p2:
40e777bda455 merge: remove linear variable
Matt Mackall <mpm@selenic.com>
parents: 3110
diff changeset
367 if branchmerge:
40e777bda455 merge: remove linear variable
Matt Mackall <mpm@selenic.com>
parents: 3110
diff changeset
368 raise util.Abort(_("there is nothing to merge, just use "
40e777bda455 merge: remove linear variable
Matt Mackall <mpm@selenic.com>
parents: 3110
diff changeset
369 "'hg update' or look at 'hg heads'"))
40e777bda455 merge: remove linear variable
Matt Mackall <mpm@selenic.com>
parents: 3110
diff changeset
370 elif not (overwrite or branchmerge):
2829
4870f795f681 Merge: combine force and forcemerge arguments
Matt Mackall <mpm@selenic.com>
parents: 2828
diff changeset
371 raise util.Abort(_("update spans branches, use 'hg merge' "
2828
0f787997e3c2 Merge: move most tests to the beginning
Matt Mackall <mpm@selenic.com>
parents: 2827
diff changeset
372 "or 'hg update -C' to lose changes"))
0f787997e3c2 Merge: move most tests to the beginning
Matt Mackall <mpm@selenic.com>
parents: 2827
diff changeset
373
0f787997e3c2 Merge: move most tests to the beginning
Matt Mackall <mpm@selenic.com>
parents: 2827
diff changeset
374 if branchmerge and not forcemerge:
3240
8d4855fd9d7b merge: use new working context object in update
Matt Mackall <mpm@selenic.com>
parents: 3234
diff changeset
375 if wc.modified() or wc.added() or wc.removed():
2828
0f787997e3c2 Merge: move most tests to the beginning
Matt Mackall <mpm@selenic.com>
parents: 2827
diff changeset
376 raise util.Abort(_("outstanding uncommitted changes"))
0f787997e3c2 Merge: move most tests to the beginning
Matt Mackall <mpm@selenic.com>
parents: 2827
diff changeset
377
3254
751840e739a1 merge: reduce manifest copying
Matt Mackall <mpm@selenic.com>
parents: 3248
diff changeset
378 m1 = wc.manifest()
751840e739a1 merge: reduce manifest copying
Matt Mackall <mpm@selenic.com>
parents: 3248
diff changeset
379 m2 = p2.manifest()
3200
e67c22bc8bba merge: use repo.parents and parent contexts in update
Matt Mackall <mpm@selenic.com>
parents: 3163
diff changeset
380 ma = pa.manifest()
2799
b550cd82f92a Move merge code to its own module
Matt Mackall <mpm@selenic.com>
parents:
diff changeset
381
b550cd82f92a Move merge code to its own module
Matt Mackall <mpm@selenic.com>
parents:
diff changeset
382 # resolve the manifest to determine which files
b550cd82f92a Move merge code to its own module
Matt Mackall <mpm@selenic.com>
parents:
diff changeset
383 # we care about merging
b550cd82f92a Move merge code to its own module
Matt Mackall <mpm@selenic.com>
parents:
diff changeset
384 repo.ui.note(_("resolving manifests\n"))
3111
40e777bda455 merge: remove linear variable
Matt Mackall <mpm@selenic.com>
parents: 3110
diff changeset
385 repo.ui.debug(_(" overwrite %s branchmerge %s partial %s\n") %
40e777bda455 merge: remove linear variable
Matt Mackall <mpm@selenic.com>
parents: 3110
diff changeset
386 (overwrite, branchmerge, bool(partial)))
3200
e67c22bc8bba merge: use repo.parents and parent contexts in update
Matt Mackall <mpm@selenic.com>
parents: 3163
diff changeset
387 repo.ui.debug(_(" ancestor %s local %s remote %s\n") % (p1, p2, pa))
2799
b550cd82f92a Move merge code to its own module
Matt Mackall <mpm@selenic.com>
parents:
diff changeset
388
3101
87ea5a71f7b9 merge: convert actions to list
Matt Mackall <mpm@selenic.com>
parents: 3097
diff changeset
389 action = []
3157
56c59ba7aa76 findcopies: use dirstate rename information
Matt Mackall <mpm@selenic.com>
parents: 3155
diff changeset
390 copy = {}
56c59ba7aa76 findcopies: use dirstate rename information
Matt Mackall <mpm@selenic.com>
parents: 3155
diff changeset
391
3108
3bd05ad67f45 merge: pull manifest checks and updates into separate functions
Matt Mackall <mpm@selenic.com>
parents: 3107
diff changeset
392 if not force:
3240
8d4855fd9d7b merge: use new working context object in update
Matt Mackall <mpm@selenic.com>
parents: 3234
diff changeset
393 checkunknown(repo, m2, wc)
3111
40e777bda455 merge: remove linear variable
Matt Mackall <mpm@selenic.com>
parents: 3110
diff changeset
394 if not branchmerge:
3240
8d4855fd9d7b merge: use new working context object in update
Matt Mackall <mpm@selenic.com>
parents: 3234
diff changeset
395 action += forgetremoved(m2, wc)
3162
84561ea8711e merge: move findcopies after workingmanifest
Matt Mackall <mpm@selenic.com>
parents: 3161
diff changeset
396 if not (backwards or overwrite):
3200
e67c22bc8bba merge: use repo.parents and parent contexts in update
Matt Mackall <mpm@selenic.com>
parents: 3163
diff changeset
397 copy = findcopies(repo, m1, m2, pa.rev())
3155
c82ea81d6850 Add core copy detection algorithm
Matt Mackall <mpm@selenic.com>
parents: 3122
diff changeset
398
3255
f05c182430a0 merge: add rename following
Matt Mackall <mpm@selenic.com>
parents: 3254
diff changeset
399 action += manifestmerge(repo.ui, m1, m2, ma, copy,
f05c182430a0 merge: add rename following
Matt Mackall <mpm@selenic.com>
parents: 3254
diff changeset
400 overwrite, backwards, partial)
2799
b550cd82f92a Move merge code to its own module
Matt Mackall <mpm@selenic.com>
parents:
diff changeset
401
2917
dd032b0f02ac merge: move forgets to the apply stage
Matt Mackall <mpm@selenic.com>
parents: 2916
diff changeset
402 ### apply phase
dd032b0f02ac merge: move forgets to the apply stage
Matt Mackall <mpm@selenic.com>
parents: 2916
diff changeset
403
3111
40e777bda455 merge: remove linear variable
Matt Mackall <mpm@selenic.com>
parents: 3110
diff changeset
404 if not branchmerge:
2799
b550cd82f92a Move merge code to its own module
Matt Mackall <mpm@selenic.com>
parents:
diff changeset
405 # we don't need to do any magic, just jump to the new rev
3200
e67c22bc8bba merge: use repo.parents and parent contexts in update
Matt Mackall <mpm@selenic.com>
parents: 3163
diff changeset
406 p1, p2 = p2, repo.changectx(nullid)
2799
b550cd82f92a Move merge code to its own module
Matt Mackall <mpm@selenic.com>
parents:
diff changeset
407
3200
e67c22bc8bba merge: use repo.parents and parent contexts in update
Matt Mackall <mpm@selenic.com>
parents: 3163
diff changeset
408 xp1, xp2 = str(p1), str(p2)
3202
9e002614f2eb merge: minor nullid cleanup
Matt Mackall <mpm@selenic.com>
parents: 3200
diff changeset
409 if not p2: xp2 = ''
2799
b550cd82f92a Move merge code to its own module
Matt Mackall <mpm@selenic.com>
parents:
diff changeset
410
3110
62044d161470 merge: simplify hook code
Matt Mackall <mpm@selenic.com>
parents: 3109
diff changeset
411 repo.hook('preupdate', throw=True, parent1=xp1, parent2=xp2)
2799
b550cd82f92a Move merge code to its own module
Matt Mackall <mpm@selenic.com>
parents:
diff changeset
412
3112
5cc62d99b785 merge: move apply and dirstate code into separate functions
Matt Mackall <mpm@selenic.com>
parents: 3111
diff changeset
413 updated, merged, removed, unresolved = applyupdates(repo, action, xp1, xp2)
2919
8743188f4d2e merge: consolidate dirstate updates
Matt Mackall <mpm@selenic.com>
parents: 2918
diff changeset
414
8743188f4d2e merge: consolidate dirstate updates
Matt Mackall <mpm@selenic.com>
parents: 2918
diff changeset
415 # update dirstate
8743188f4d2e merge: consolidate dirstate updates
Matt Mackall <mpm@selenic.com>
parents: 2918
diff changeset
416 if not partial:
3248
7a0d70b69d74 merge: reorder dirstate update slightly for correctness
Matt Mackall <mpm@selenic.com>
parents: 3240
diff changeset
417 recordupdates(repo, action, branchmerge)
3200
e67c22bc8bba merge: use repo.parents and parent contexts in update
Matt Mackall <mpm@selenic.com>
parents: 3163
diff changeset
418 repo.dirstate.setparents(p1.node(), p2.node())
2799
b550cd82f92a Move merge code to its own module
Matt Mackall <mpm@selenic.com>
parents:
diff changeset
419
b550cd82f92a Move merge code to its own module
Matt Mackall <mpm@selenic.com>
parents:
diff changeset
420 if show_stats:
3006
87a0332ab58b merge: combine merge and get lists
Matt Mackall <mpm@selenic.com>
parents: 3005
diff changeset
421 stats = ((updated, _("updated")),
3096
54d85098fb82 merge: make unresolved a counter
Matt Mackall <mpm@selenic.com>
parents: 3095
diff changeset
422 (merged - unresolved, _("merged")),
3007
962b9c7df641 merge: add remove to the action hash
Matt Mackall <mpm@selenic.com>
parents: 3006
diff changeset
423 (removed, _("removed")),
3096
54d85098fb82 merge: make unresolved a counter
Matt Mackall <mpm@selenic.com>
parents: 3095
diff changeset
424 (unresolved, _("unresolved")))
2799
b550cd82f92a Move merge code to its own module
Matt Mackall <mpm@selenic.com>
parents:
diff changeset
425 note = ", ".join([_("%d files %s") % s for s in stats])
b550cd82f92a Move merge code to its own module
Matt Mackall <mpm@selenic.com>
parents:
diff changeset
426 repo.ui.status("%s\n" % note)
2825
1ea086bc2086 Merge: combine choose and moddirstate to partial
Matt Mackall <mpm@selenic.com>
parents: 2824
diff changeset
427 if not partial:
2824
ca06d35af65e Rename merge.allow -> merge.branchmerge
Matt Mackall <mpm@selenic.com>
parents: 2803
diff changeset
428 if branchmerge:
2827
56f99f5aab34 Merge: refactor err and failedmerge -> unresolved
Matt Mackall <mpm@selenic.com>
parents: 2826
diff changeset
429 if unresolved:
2799
b550cd82f92a Move merge code to its own module
Matt Mackall <mpm@selenic.com>
parents:
diff changeset
430 repo.ui.status(_("There are unresolved merges,"
b550cd82f92a Move merge code to its own module
Matt Mackall <mpm@selenic.com>
parents:
diff changeset
431 " you can redo the full merge using:\n"
b550cd82f92a Move merge code to its own module
Matt Mackall <mpm@selenic.com>
parents:
diff changeset
432 " hg update -C %s\n"
b550cd82f92a Move merge code to its own module
Matt Mackall <mpm@selenic.com>
parents:
diff changeset
433 " hg merge %s\n"
3200
e67c22bc8bba merge: use repo.parents and parent contexts in update
Matt Mackall <mpm@selenic.com>
parents: 3163
diff changeset
434 % (p1.rev(), p2.rev())))
2803
987c31e2a08c Merge with crew
Matt Mackall <mpm@selenic.com>
parents: 2799
diff changeset
435 elif remind:
2799
b550cd82f92a Move merge code to its own module
Matt Mackall <mpm@selenic.com>
parents:
diff changeset
436 repo.ui.status(_("(branch merge, don't forget to commit)\n"))
2827
56f99f5aab34 Merge: refactor err and failedmerge -> unresolved
Matt Mackall <mpm@selenic.com>
parents: 2826
diff changeset
437 elif unresolved:
2799
b550cd82f92a Move merge code to its own module
Matt Mackall <mpm@selenic.com>
parents:
diff changeset
438 repo.ui.status(_("There are unresolved merges with"
b550cd82f92a Move merge code to its own module
Matt Mackall <mpm@selenic.com>
parents:
diff changeset
439 " locally modified files.\n"))
b550cd82f92a Move merge code to its own module
Matt Mackall <mpm@selenic.com>
parents:
diff changeset
440
3110
62044d161470 merge: simplify hook code
Matt Mackall <mpm@selenic.com>
parents: 3109
diff changeset
441 repo.hook('update', parent1=xp1, parent2=xp2, error=unresolved)
3096
54d85098fb82 merge: make unresolved a counter
Matt Mackall <mpm@selenic.com>
parents: 3095
diff changeset
442 return unresolved
2799
b550cd82f92a Move merge code to its own module
Matt Mackall <mpm@selenic.com>
parents:
diff changeset
443