Mercurial > public > mercurial-scm > hg-stable

annotate mercurial/merge.py @ 3299:e7abcf3a7c5f

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filemerge: use contexts rather than my and other
author Matt Mackall <mpm@selenic.com>
date Mon, 09 Oct 2006 21:27:04 -0500
parents 69b9471f26bb
children 488d3062d225
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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, wctx, mctx, 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 wctx, mctx = working and merge changecontexts
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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 = wctx.filectx(fw)
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38 fco = mctx.filectx(fo)
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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': str(wctx.parents()[0]),
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54 'HG_OTHER_NODE': str(mctx)})
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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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153 ca = c.ancestor(c2)
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154 if ca and ca.path() == c.path() or ca.path() == c2.path():
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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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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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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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diff changeset
170 checkpair(c, of, m1)
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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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175 return copy
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176
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177 def manifestmerge(repo, p1, p2, pa, overwrite, 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 m1 = p1.manifest()
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183 m2 = p2.manifest()
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184 ma = pa.manifest()
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185 backwards = (pa == p2)
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186
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187 def fmerge(f, f2=None, fa=None):
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188 """merge executable flags"""
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189 if not f2:
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190 f2 = f
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191 fa = f
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192 a, b, c = ma.execf(fa), m1.execf(f), m2.execf(f2)
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193 return ((a^b) | (a^c)) ^ a
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194
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195 action = []
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196
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197 def act(msg, f, m, *args):
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198 repo.ui.debug(" %s: %s -> %s\n" % (f, msg, m))
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199 action.append((f, m) + args)
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200
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diff changeset
201 copy = {}
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202 if not (backwards or overwrite):
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203 copy = findcopies(repo, m1, m2, pa.rev())
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204
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205 # Compare manifests
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206 for f, n in m1.iteritems():
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207 if partial and not partial(f):
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208 continue
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209 if f in m2:
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210 # are files different?
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211 if n != m2[f]:
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diff changeset
212 a = ma.get(f, nullid)
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213 # are both different from the ancestor?
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214 if not overwrite and n != a and m2[f] != a:
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diff changeset
215 act("versions differ", f, "m", fmerge(f), n[:20], m2[f])
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216 # are we clobbering?
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217 # is remote's version newer?
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218 # or are we going back in time and clean?
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219 elif overwrite or m2[f] != a or (backwards and not n[20:]):
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diff changeset
220 act("remote is newer", f, "g", m2.execf(f), m2[f])
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221 # local is newer, not overwrite, check mode bits
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222 elif fmerge(f) != m1.execf(f):
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diff changeset
223 act("update permissions", f, "e", m2.execf(f))
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diff changeset
224 # contents same, check mode bits
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diff changeset
225 elif m1.execf(f) != m2.execf(f):
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diff changeset
226 if overwrite or fmerge(f) != m1.execf(f):
3121
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diff changeset
227 act("update permissions", f, "e", m2.execf(f))
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228 elif f in copy:
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229 f2 = copy[f]
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230 if f in ma: # case 3,20 A/B/A
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diff changeset
231 act("remote moved",
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diff changeset
232 f, "c", f2, f2, m1[f], m2[f2], fmerge(f, f2, f), True)
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diff changeset
233 else:
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234 if f2 in m1: # case 2 A,B/B/B
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diff changeset
235 act("local copied",
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diff changeset
236 f, "c", f2, f, m1[f], m2[f2], fmerge(f, f2, f2), False)
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diff changeset
237 else: # case 4,21 A/B/B
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diff changeset
238 act("local moved",
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diff changeset
239 f, "c", f2, f, m1[f], m2[f2], fmerge(f, f2, f2), False)
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diff changeset
240 elif f in ma:
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diff changeset
241 if n != ma[f] and not overwrite:
3295
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diff changeset
242 if repo.ui.prompt(
3117
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diff changeset
243 (_(" local changed %s which remote deleted\n") % f) +
3119
b1de36a4b4df merge: simplify prompt code
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diff changeset
244 _("(k)eep or (d)elete?"), _("[kd]"), _("k")) == _("d"):
3121
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diff changeset
245 act("prompt delete", f, "r")
3105
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diff changeset
246 else:
3121
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diff changeset
247 act("other deleted", f, "r")
3105
7c7469d41ade merge: pull manifest comparison out into separate function
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diff changeset
248 else:
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diff changeset
249 # file is created on branch or in working directory
3120
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diff changeset
250 if (overwrite and n[20:] != "u") or (backwards and not n[20:]):
3121
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diff changeset
251 act("remote deleted", f, "r")
3105
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diff changeset
252
7c7469d41ade merge: pull manifest comparison out into separate function
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diff changeset
253 for f, n in m2.iteritems():
3248
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diff changeset
254 if partial and not partial(f):
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diff changeset
255 continue
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diff changeset
256 if f in m1:
751840e739a1 merge: reduce manifest copying
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diff changeset
257 continue
3249
f05c182430a0 merge: add rename following
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diff changeset
258 if f in copy:
f05c182430a0 merge: add rename following
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diff changeset
259 f2 = copy[f]
3252
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diff changeset
260 if f2 not in m2: # already seen
3249
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diff changeset
261 continue
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diff changeset
262 # rename case 1, A/A,B/A
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diff changeset
263 act("remote copied",
3252
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diff changeset
264 f2, "c", f, f, m1[f2], m2[f], fmerge(f2, f, f2), False)
3249
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diff changeset
265 elif f in ma:
3116
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diff changeset
266 if overwrite or backwards:
3121
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diff changeset
267 act("recreating", f, "g", m2.execf(f), n)
3116
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diff changeset
268 elif n != ma[f]:
3295
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diff changeset
269 if repo.ui.prompt(
3116
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diff changeset
270 (_("remote changed %s which local deleted\n") % f) +
3119
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diff changeset
271 _("(k)eep or (d)elete?"), _("[kd]"), _("k")) == _("k"):
3121
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diff changeset
272 act("prompt recreating", f, "g", m2.execf(f), n)
3115
bb74f809bc95 merge: reorder tests on m2 items in manifestmerge
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diff changeset
273 else:
3121
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diff changeset
274 act("remote created", f, "g", m2.execf(f), n)
3105
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diff changeset
275
7c7469d41ade merge: pull manifest comparison out into separate function
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diff changeset
276 return action
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diff changeset
277
3297
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Matt Mackall <mpm@selenic.com>
parents: 3296
diff changeset
278 def applyupdates(repo, action, wctx, mctx):
3111
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parents: 3110
diff changeset
279 updated, merged, removed, unresolved = 0, 0, 0, 0
5cc62d99b785 merge: move apply and dirstate code into separate functions
Matt Mackall <mpm@selenic.com>
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diff changeset
280 action.sort()
5cc62d99b785 merge: move apply and dirstate code into separate functions
Matt Mackall <mpm@selenic.com>
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diff changeset
281 for a in action:
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Matt Mackall <mpm@selenic.com>
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diff changeset
282 f, m = a[:2]
5cc62d99b785 merge: move apply and dirstate code into separate functions
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diff changeset
283 if f[0] == "/":
5cc62d99b785 merge: move apply and dirstate code into separate functions
Matt Mackall <mpm@selenic.com>
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diff changeset
284 continue
5cc62d99b785 merge: move apply and dirstate code into separate functions
Matt Mackall <mpm@selenic.com>
parents: 3110
diff changeset
285 if m == "r": # remove
5cc62d99b785 merge: move apply and dirstate code into separate functions
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parents: 3110
diff changeset
286 repo.ui.note(_("removing %s\n") % f)
5cc62d99b785 merge: move apply and dirstate code into separate functions
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diff changeset
287 util.audit_path(f)
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diff changeset
288 try:
5cc62d99b785 merge: move apply and dirstate code into separate functions
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diff changeset
289 util.unlink(repo.wjoin(f))
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diff changeset
290 except OSError, inst:
5cc62d99b785 merge: move apply and dirstate code into separate functions
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diff changeset
291 if inst.errno != errno.ENOENT:
5cc62d99b785 merge: move apply and dirstate code into separate functions
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diff changeset
292 repo.ui.warn(_("update failed to remove %s: %s!\n") %
5cc62d99b785 merge: move apply and dirstate code into separate functions
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parents: 3110
diff changeset
293 (f, inst.strerror))
5cc62d99b785 merge: move apply and dirstate code into separate functions
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parents: 3110
diff changeset
294 removed +=1
3249
f05c182430a0 merge: add rename following
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diff changeset
295 elif m == "c": # copy
3251
c93ce7f10f85 merge: fixes for merge+rename
Matt Mackall <mpm@selenic.com>
parents: 3249
diff changeset
296 f2, fd, my, other, flag, move = a[2:]
3252
ae85272b59a4 merge: copy fixes and tests
Matt Mackall <mpm@selenic.com>
parents: 3251
diff changeset
297 repo.ui.status(_("merging %s and %s to %s\n") % (f, f2, fd))
3299
e7abcf3a7c5f filemerge: use contexts rather than my and other
Matt Mackall <mpm@selenic.com>
parents: 3297
diff changeset
298 if filemerge(repo, f, f2, fd, wctx, mctx, move):
3249
f05c182430a0 merge: add rename following
Matt Mackall <mpm@selenic.com>
parents: 3248
diff changeset
299 unresolved += 1
f05c182430a0 merge: add rename following
Matt Mackall <mpm@selenic.com>
parents: 3248
diff changeset
300 util.set_exec(repo.wjoin(fd), flag)
f05c182430a0 merge: add rename following
Matt Mackall <mpm@selenic.com>
parents: 3248
diff changeset
301 merged += 1
3111
5cc62d99b785 merge: move apply and dirstate code into separate functions
Matt Mackall <mpm@selenic.com>
parents: 3110
diff changeset
302 elif m == "m": # merge
5cc62d99b785 merge: move apply and dirstate code into separate functions
Matt Mackall <mpm@selenic.com>
parents: 3110
diff changeset
303 flag, my, other = a[2:]
5cc62d99b785 merge: move apply and dirstate code into separate functions
Matt Mackall <mpm@selenic.com>
parents: 3110
diff changeset
304 repo.ui.status(_("merging %s\n") % f)
3299
e7abcf3a7c5f filemerge: use contexts rather than my and other
Matt Mackall <mpm@selenic.com>
parents: 3297
diff changeset
305 if filemerge(repo, f, f, f, wctx, mctx, False):
3111
5cc62d99b785 merge: move apply and dirstate code into separate functions
Matt Mackall <mpm@selenic.com>
parents: 3110
diff changeset
306 unresolved += 1
5cc62d99b785 merge: move apply and dirstate code into separate functions
Matt Mackall <mpm@selenic.com>
parents: 3110
diff changeset
307 util.set_exec(repo.wjoin(f), flag)
5cc62d99b785 merge: move apply and dirstate code into separate functions
Matt Mackall <mpm@selenic.com>
parents: 3110
diff changeset
308 merged += 1
5cc62d99b785 merge: move apply and dirstate code into separate functions
Matt Mackall <mpm@selenic.com>
parents: 3110
diff changeset
309 elif m == "g": # get
5cc62d99b785 merge: move apply and dirstate code into separate functions
Matt Mackall <mpm@selenic.com>
parents: 3110
diff changeset
310 flag, node = a[2:]
5cc62d99b785 merge: move apply and dirstate code into separate functions
Matt Mackall <mpm@selenic.com>
parents: 3110
diff changeset
311 repo.ui.note(_("getting %s\n") % f)
5cc62d99b785 merge: move apply and dirstate code into separate functions
Matt Mackall <mpm@selenic.com>
parents: 3110
diff changeset
312 t = repo.file(f).read(node)
5cc62d99b785 merge: move apply and dirstate code into separate functions
Matt Mackall <mpm@selenic.com>
parents: 3110
diff changeset
313 repo.wwrite(f, t)
5cc62d99b785 merge: move apply and dirstate code into separate functions
Matt Mackall <mpm@selenic.com>
parents: 3110
diff changeset
314 util.set_exec(repo.wjoin(f), flag)
5cc62d99b785 merge: move apply and dirstate code into separate functions
Matt Mackall <mpm@selenic.com>
parents: 3110
diff changeset
315 updated += 1
5cc62d99b785 merge: move apply and dirstate code into separate functions
Matt Mackall <mpm@selenic.com>
parents: 3110
diff changeset
316 elif m == "e": # exec
5cc62d99b785 merge: move apply and dirstate code into separate functions
Matt Mackall <mpm@selenic.com>
parents: 3110
diff changeset
317 flag = a[2:]
5cc62d99b785 merge: move apply and dirstate code into separate functions
Matt Mackall <mpm@selenic.com>
parents: 3110
diff changeset
318 util.set_exec(repo.wjoin(f), flag)
5cc62d99b785 merge: move apply and dirstate code into separate functions
Matt Mackall <mpm@selenic.com>
parents: 3110
diff changeset
319
5cc62d99b785 merge: move apply and dirstate code into separate functions
Matt Mackall <mpm@selenic.com>
parents: 3110
diff changeset
320 return updated, merged, removed, unresolved
5cc62d99b785 merge: move apply and dirstate code into separate functions
Matt Mackall <mpm@selenic.com>
parents: 3110
diff changeset
321
5cc62d99b785 merge: move apply and dirstate code into separate functions
Matt Mackall <mpm@selenic.com>
parents: 3110
diff changeset
322 def recordupdates(repo, action, branchmerge):
5cc62d99b785 merge: move apply and dirstate code into separate functions
Matt Mackall <mpm@selenic.com>
parents: 3110
diff changeset
323 for a in action:
5cc62d99b785 merge: move apply and dirstate code into separate functions
Matt Mackall <mpm@selenic.com>
parents: 3110
diff changeset
324 f, m = a[:2]
5cc62d99b785 merge: move apply and dirstate code into separate functions
Matt Mackall <mpm@selenic.com>
parents: 3110
diff changeset
325 if m == "r": # remove
5cc62d99b785 merge: move apply and dirstate code into separate functions
Matt Mackall <mpm@selenic.com>
parents: 3110
diff changeset
326 if branchmerge:
5cc62d99b785 merge: move apply and dirstate code into separate functions
Matt Mackall <mpm@selenic.com>
parents: 3110
diff changeset
327 repo.dirstate.update([f], 'r')
5cc62d99b785 merge: move apply and dirstate code into separate functions
Matt Mackall <mpm@selenic.com>
parents: 3110
diff changeset
328 else:
5cc62d99b785 merge: move apply and dirstate code into separate functions
Matt Mackall <mpm@selenic.com>
parents: 3110
diff changeset
329 repo.dirstate.forget([f])
5cc62d99b785 merge: move apply and dirstate code into separate functions
Matt Mackall <mpm@selenic.com>
parents: 3110
diff changeset
330 elif m == "f": # forget
5cc62d99b785 merge: move apply and dirstate code into separate functions
Matt Mackall <mpm@selenic.com>
parents: 3110
diff changeset
331 repo.dirstate.forget([f])
5cc62d99b785 merge: move apply and dirstate code into separate functions
Matt Mackall <mpm@selenic.com>
parents: 3110
diff changeset
332 elif m == "g": # get
5cc62d99b785 merge: move apply and dirstate code into separate functions
Matt Mackall <mpm@selenic.com>
parents: 3110
diff changeset
333 if branchmerge:
5cc62d99b785 merge: move apply and dirstate code into separate functions
Matt Mackall <mpm@selenic.com>
parents: 3110
diff changeset
334 repo.dirstate.update([f], 'n', st_mtime=-1)
5cc62d99b785 merge: move apply and dirstate code into separate functions
Matt Mackall <mpm@selenic.com>
parents: 3110
diff changeset
335 else:
5cc62d99b785 merge: move apply and dirstate code into separate functions
Matt Mackall <mpm@selenic.com>
parents: 3110
diff changeset
336 repo.dirstate.update([f], 'n')
5cc62d99b785 merge: move apply and dirstate code into separate functions
Matt Mackall <mpm@selenic.com>
parents: 3110
diff changeset
337 elif m == "m": # merge
5cc62d99b785 merge: move apply and dirstate code into separate functions
Matt Mackall <mpm@selenic.com>
parents: 3110
diff changeset
338 flag, my, other = a[2:]
5cc62d99b785 merge: move apply and dirstate code into separate functions
Matt Mackall <mpm@selenic.com>
parents: 3110
diff changeset
339 if branchmerge:
5cc62d99b785 merge: move apply and dirstate code into separate functions
Matt Mackall <mpm@selenic.com>
parents: 3110
diff changeset
340 # 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: 3110
diff changeset
341 # so that we properly record the merger later
5cc62d99b785 merge: move apply and dirstate code into separate functions
Matt Mackall <mpm@selenic.com>
parents: 3110
diff changeset
342 repo.dirstate.update([f], 'm')
5cc62d99b785 merge: move apply and dirstate code into separate functions
Matt Mackall <mpm@selenic.com>
parents: 3110
diff changeset
343 else:
5cc62d99b785 merge: move apply and dirstate code into separate functions
Matt Mackall <mpm@selenic.com>
parents: 3110
diff changeset
344 # 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: 3110
diff changeset
345 # 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: 3110
diff changeset
346 # 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: 3110
diff changeset
347 # merge will appear as a normal local file
5cc62d99b785 merge: move apply and dirstate code into separate functions
Matt Mackall <mpm@selenic.com>
parents: 3110
diff changeset
348 # modification.
5cc62d99b785 merge: move apply and dirstate code into separate functions
Matt Mackall <mpm@selenic.com>
parents: 3110
diff changeset
349 fl = repo.file(f)
5cc62d99b785 merge: move apply and dirstate code into separate functions
Matt Mackall <mpm@selenic.com>
parents: 3110
diff changeset
350 f_len = fl.size(fl.rev(other))
5cc62d99b785 merge: move apply and dirstate code into separate functions
Matt Mackall <mpm@selenic.com>
parents: 3110
diff changeset
351 repo.dirstate.update([f], 'n', st_size=f_len, st_mtime=-1)
3251
c93ce7f10f85 merge: fixes for merge+rename
Matt Mackall <mpm@selenic.com>
parents: 3249
diff changeset
352 elif m == "c": # copy
c93ce7f10f85 merge: fixes for merge+rename
Matt Mackall <mpm@selenic.com>
parents: 3249
diff changeset
353 f2, fd, my, other, flag, move = a[2:]
c93ce7f10f85 merge: fixes for merge+rename
Matt Mackall <mpm@selenic.com>
parents: 3249
diff changeset
354 if branchmerge:
c93ce7f10f85 merge: fixes for merge+rename
Matt Mackall <mpm@selenic.com>
parents: 3249
diff changeset
355 # We've done a branch merge, mark this file as merged
c93ce7f10f85 merge: fixes for merge+rename
Matt Mackall <mpm@selenic.com>
parents: 3249
diff changeset
356 # so that we properly record the merger later
c93ce7f10f85 merge: fixes for merge+rename
Matt Mackall <mpm@selenic.com>
parents: 3249
diff changeset
357 repo.dirstate.update([fd], 'm')
c93ce7f10f85 merge: fixes for merge+rename
Matt Mackall <mpm@selenic.com>
parents: 3249
diff changeset
358 else:
c93ce7f10f85 merge: fixes for merge+rename
Matt Mackall <mpm@selenic.com>
parents: 3249
diff changeset
359 # We've update-merged a locally modified file, so
c93ce7f10f85 merge: fixes for merge+rename
Matt Mackall <mpm@selenic.com>
parents: 3249
diff changeset
360 # we set the dirstate to emulate a normal checkout
c93ce7f10f85 merge: fixes for merge+rename
Matt Mackall <mpm@selenic.com>
parents: 3249
diff changeset
361 # of that file some time in the past. Thus our
c93ce7f10f85 merge: fixes for merge+rename
Matt Mackall <mpm@selenic.com>
parents: 3249
diff changeset
362 # merge will appear as a normal local file
c93ce7f10f85 merge: fixes for merge+rename
Matt Mackall <mpm@selenic.com>
parents: 3249
diff changeset
363 # modification.
c93ce7f10f85 merge: fixes for merge+rename
Matt Mackall <mpm@selenic.com>
parents: 3249
diff changeset
364 fl = repo.file(f)
c93ce7f10f85 merge: fixes for merge+rename
Matt Mackall <mpm@selenic.com>
parents: 3249
diff changeset
365 f_len = fl.size(fl.rev(other))
c93ce7f10f85 merge: fixes for merge+rename
Matt Mackall <mpm@selenic.com>
parents: 3249
diff changeset
366 repo.dirstate.update([fd], 'n', st_size=f_len, st_mtime=-1)
c93ce7f10f85 merge: fixes for merge+rename
Matt Mackall <mpm@selenic.com>
parents: 3249
diff changeset
367 if move:
c93ce7f10f85 merge: fixes for merge+rename
Matt Mackall <mpm@selenic.com>
parents: 3249
diff changeset
368 repo.dirstate.update([f], 'r')
c93ce7f10f85 merge: fixes for merge+rename
Matt Mackall <mpm@selenic.com>
parents: 3249
diff changeset
369 if f != fd:
c93ce7f10f85 merge: fixes for merge+rename
Matt Mackall <mpm@selenic.com>
parents: 3249
diff changeset
370 repo.dirstate.copy(f, fd)
3292
764688cf51e5 merge: remember rename copies and parents properly on commit
Matt Mackall <mpm@selenic.com>
parents: 3252
diff changeset
371 else:
764688cf51e5 merge: remember rename copies and parents properly on commit
Matt Mackall <mpm@selenic.com>
parents: 3252
diff changeset
372 repo.dirstate.copy(f2, fd)
3111
5cc62d99b785 merge: move apply and dirstate code into separate functions
Matt Mackall <mpm@selenic.com>
parents: 3110
diff changeset
373
2811
1ea086bc2086 Merge: combine choose and moddirstate to partial
Matt Mackall <mpm@selenic.com>
parents: 2810
diff changeset
374 def update(repo, node, branchmerge=False, force=False, partial=None,
2815
4870f795f681 Merge: combine force and forcemerge arguments
Matt Mackall <mpm@selenic.com>
parents: 2814
diff changeset
375 wlock=None, show_stats=True, remind=True):
4870f795f681 Merge: combine force and forcemerge arguments
Matt Mackall <mpm@selenic.com>
parents: 2814
diff changeset
376
4870f795f681 Merge: combine force and forcemerge arguments
Matt Mackall <mpm@selenic.com>
parents: 2814
diff changeset
377 overwrite = force and not branchmerge
4870f795f681 Merge: combine force and forcemerge arguments
Matt Mackall <mpm@selenic.com>
parents: 2814
diff changeset
378 forcemerge = force and branchmerge
2812
3aeab7bb5adc Refactor update locking slightly
Matt Mackall <mpm@selenic.com>
parents: 2811
diff changeset
379
3aeab7bb5adc Refactor update locking slightly
Matt Mackall <mpm@selenic.com>
parents: 2811
diff changeset
380 if not wlock:
3aeab7bb5adc Refactor update locking slightly
Matt Mackall <mpm@selenic.com>
parents: 2811
diff changeset
381 wlock = repo.wlock()
3aeab7bb5adc Refactor update locking slightly
Matt Mackall <mpm@selenic.com>
parents: 2811
diff changeset
382
2814
0f787997e3c2 Merge: move most tests to the beginning
Matt Mackall <mpm@selenic.com>
parents: 2813
diff changeset
383 ### check phase
0f787997e3c2 Merge: move most tests to the beginning
Matt Mackall <mpm@selenic.com>
parents: 2813
diff changeset
384
3218
8d4855fd9d7b merge: use new working context object in update
Matt Mackall <mpm@selenic.com>
parents: 3212
diff changeset
385 wc = repo.workingctx()
8d4855fd9d7b merge: use new working context object in update
Matt Mackall <mpm@selenic.com>
parents: 3212
diff changeset
386 pl = wc.parents()
3167
e67c22bc8bba merge: use repo.parents and parent contexts in update
Matt Mackall <mpm@selenic.com>
parents: 3162
diff changeset
387 if not overwrite and len(pl) > 1:
2775
b550cd82f92a Move merge code to its own module
Matt Mackall <mpm@selenic.com>
parents:
diff changeset
388 raise util.Abort(_("outstanding uncommitted merges"))
b550cd82f92a Move merge code to its own module
Matt Mackall <mpm@selenic.com>
parents:
diff changeset
389
3167
e67c22bc8bba merge: use repo.parents and parent contexts in update
Matt Mackall <mpm@selenic.com>
parents: 3162
diff changeset
390 p1, p2 = pl[0], repo.changectx(node)
e67c22bc8bba merge: use repo.parents and parent contexts in update
Matt Mackall <mpm@selenic.com>
parents: 3162
diff changeset
391 pa = p1.ancestor(p2)
2814
0f787997e3c2 Merge: move most tests to the beginning
Matt Mackall <mpm@selenic.com>
parents: 2813
diff changeset
392
0f787997e3c2 Merge: move most tests to the beginning
Matt Mackall <mpm@selenic.com>
parents: 2813
diff changeset
393 # is there a linear path from p1 to p2?
3110
40e777bda455 merge: remove linear variable
Matt Mackall <mpm@selenic.com>
parents: 3109
diff changeset
394 if pa == p1 or pa == p2:
40e777bda455 merge: remove linear variable
Matt Mackall <mpm@selenic.com>
parents: 3109
diff changeset
395 if branchmerge:
40e777bda455 merge: remove linear variable
Matt Mackall <mpm@selenic.com>
parents: 3109
diff changeset
396 raise util.Abort(_("there is nothing to merge, just use "
40e777bda455 merge: remove linear variable
Matt Mackall <mpm@selenic.com>
parents: 3109
diff changeset
397 "'hg update' or look at 'hg heads'"))
40e777bda455 merge: remove linear variable
Matt Mackall <mpm@selenic.com>
parents: 3109
diff changeset
398 elif not (overwrite or branchmerge):
2815
4870f795f681 Merge: combine force and forcemerge arguments
Matt Mackall <mpm@selenic.com>
parents: 2814
diff changeset
399 raise util.Abort(_("update spans branches, use 'hg merge' "
2814
0f787997e3c2 Merge: move most tests to the beginning
Matt Mackall <mpm@selenic.com>
parents: 2813
diff changeset
400 "or 'hg update -C' to lose changes"))
0f787997e3c2 Merge: move most tests to the beginning
Matt Mackall <mpm@selenic.com>
parents: 2813
diff changeset
401
0f787997e3c2 Merge: move most tests to the beginning
Matt Mackall <mpm@selenic.com>
parents: 2813
diff changeset
402 if branchmerge and not forcemerge:
3218
8d4855fd9d7b merge: use new working context object in update
Matt Mackall <mpm@selenic.com>
parents: 3212
diff changeset
403 if wc.modified() or wc.added() or wc.removed():
2814
0f787997e3c2 Merge: move most tests to the beginning
Matt Mackall <mpm@selenic.com>
parents: 2813
diff changeset
404 raise util.Abort(_("outstanding uncommitted changes"))
0f787997e3c2 Merge: move most tests to the beginning
Matt Mackall <mpm@selenic.com>
parents: 2813
diff changeset
405
3248
751840e739a1 merge: reduce manifest copying
Matt Mackall <mpm@selenic.com>
parents: 3247
diff changeset
406 m1 = wc.manifest()
751840e739a1 merge: reduce manifest copying
Matt Mackall <mpm@selenic.com>
parents: 3247
diff changeset
407 m2 = p2.manifest()
2775
b550cd82f92a Move merge code to its own module
Matt Mackall <mpm@selenic.com>
parents:
diff changeset
408
b550cd82f92a Move merge code to its own module
Matt Mackall <mpm@selenic.com>
parents:
diff changeset
409 # resolve the manifest to determine which files
b550cd82f92a Move merge code to its own module
Matt Mackall <mpm@selenic.com>
parents:
diff changeset
410 # we care about merging
b550cd82f92a Move merge code to its own module
Matt Mackall <mpm@selenic.com>
parents:
diff changeset
411 repo.ui.note(_("resolving manifests\n"))
3110
40e777bda455 merge: remove linear variable
Matt Mackall <mpm@selenic.com>
parents: 3109
diff changeset
412 repo.ui.debug(_(" overwrite %s branchmerge %s partial %s\n") %
40e777bda455 merge: remove linear variable
Matt Mackall <mpm@selenic.com>
parents: 3109
diff changeset
413 (overwrite, branchmerge, bool(partial)))
3167
e67c22bc8bba merge: use repo.parents and parent contexts in update
Matt Mackall <mpm@selenic.com>
parents: 3162
diff changeset
414 repo.ui.debug(_(" ancestor %s local %s remote %s\n") % (p1, p2, pa))
2775
b550cd82f92a Move merge code to its own module
Matt Mackall <mpm@selenic.com>
parents:
diff changeset
415
3100
87ea5a71f7b9 merge: convert actions to list
Matt Mackall <mpm@selenic.com>
parents: 2981
diff changeset
416 action = []
3155
56c59ba7aa76 findcopies: use dirstate rename information
Matt Mackall <mpm@selenic.com>
parents: 3153
diff changeset
417
3107
3bd05ad67f45 merge: pull manifest checks and updates into separate functions
Matt Mackall <mpm@selenic.com>
parents: 3106
diff changeset
418 if not force:
3218
8d4855fd9d7b merge: use new working context object in update
Matt Mackall <mpm@selenic.com>
parents: 3212
diff changeset
419 checkunknown(repo, m2, wc)
3110
40e777bda455 merge: remove linear variable
Matt Mackall <mpm@selenic.com>
parents: 3109
diff changeset
420 if not branchmerge:
3218
8d4855fd9d7b merge: use new working context object in update
Matt Mackall <mpm@selenic.com>
parents: 3212
diff changeset
421 action += forgetremoved(m2, wc)
3153
c82ea81d6850 Add core copy detection algorithm
Matt Mackall <mpm@selenic.com>
parents: 3121
diff changeset
422
3295
72d1e521da77 merge: use contexts for manifestmerge
Matt Mackall <mpm@selenic.com>
parents: 3292
diff changeset
423 action += manifestmerge(repo, wc, p2, pa, overwrite, partial)
2775
b550cd82f92a Move merge code to its own module
Matt Mackall <mpm@selenic.com>
parents:
diff changeset
424
2897
dd032b0f02ac merge: move forgets to the apply stage
Matt Mackall <mpm@selenic.com>
parents: 2896
diff changeset
425 ### apply phase
dd032b0f02ac merge: move forgets to the apply stage
Matt Mackall <mpm@selenic.com>
parents: 2896
diff changeset
426
3110
40e777bda455 merge: remove linear variable
Matt Mackall <mpm@selenic.com>
parents: 3109
diff changeset
427 if not branchmerge:
3296
20087b4bc6f9 merge: don't call hooks for revert
Matt Mackall <mpm@selenic.com>
parents: 3295
diff changeset
428 # just jump to the new rev
20087b4bc6f9 merge: don't call hooks for revert
Matt Mackall <mpm@selenic.com>
parents: 3295
diff changeset
429 fp1, fp2, xp1, xp2 = p2.node(), nullid, str(p2), ''
20087b4bc6f9 merge: don't call hooks for revert
Matt Mackall <mpm@selenic.com>
parents: 3295
diff changeset
430 else:
20087b4bc6f9 merge: don't call hooks for revert
Matt Mackall <mpm@selenic.com>
parents: 3295
diff changeset
431 fp1, fp2, xp1, xp2 = p1.node(), p2.node(), str(p1), str(p2)
2775
b550cd82f92a Move merge code to its own module
Matt Mackall <mpm@selenic.com>
parents:
diff changeset
432
3296
20087b4bc6f9 merge: don't call hooks for revert
Matt Mackall <mpm@selenic.com>
parents: 3295
diff changeset
433 if not partial:
20087b4bc6f9 merge: don't call hooks for revert
Matt Mackall <mpm@selenic.com>
parents: 3295
diff changeset
434 repo.hook('preupdate', throw=True, parent1=xp1, parent2=xp2)
2775
b550cd82f92a Move merge code to its own module
Matt Mackall <mpm@selenic.com>
parents:
diff changeset
435
3297
69b9471f26bb merge: pass contexts to applyupdates
Matt Mackall <mpm@selenic.com>
parents: 3296
diff changeset
436 updated, merged, removed, unresolved = applyupdates(repo, action, wc, p2)
2899
8743188f4d2e merge: consolidate dirstate updates
Matt Mackall <mpm@selenic.com>
parents: 2898
diff changeset
437
8743188f4d2e merge: consolidate dirstate updates
Matt Mackall <mpm@selenic.com>
parents: 2898
diff changeset
438 # update dirstate
8743188f4d2e merge: consolidate dirstate updates
Matt Mackall <mpm@selenic.com>
parents: 2898
diff changeset
439 if not partial:
3247
7a0d70b69d74 merge: reorder dirstate update slightly for correctness
Matt Mackall <mpm@selenic.com>
parents: 3218
diff changeset
440 recordupdates(repo, action, branchmerge)
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441 repo.dirstate.setparents(fp1, fp2)
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442 repo.hook('update', parent1=xp1, parent2=xp2, error=unresolved)
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443
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444 if show_stats:
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445 stats = ((updated, _("updated")),
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446 (merged - unresolved, _("merged")),
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447 (removed, _("removed")),
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448 (unresolved, _("unresolved")))
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449 note = ", ".join([_("%d files %s") % s for s in stats])
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450 repo.ui.status("%s\n" % note)
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1ea086bc2086 Merge: combine choose and moddirstate to partial
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451 if not partial:
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ca06d35af65e Rename merge.allow -> merge.branchmerge
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452 if branchmerge:
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453 if unresolved:
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454 repo.ui.status(_("There are unresolved merges,"
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455 " you can redo the full merge using:\n"
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456 " hg update -C %s\n"
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457 " hg merge %s\n"
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458 % (p1.rev(), p2.rev())))
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459 elif remind:
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460 repo.ui.status(_("(branch merge, don't forget to commit)\n"))
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461 elif unresolved:
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462 repo.ui.status(_("There are unresolved merges with"
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463 " locally modified files.\n"))
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464
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465 return unresolved
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466