Mercurial > public > mercurial-scm > hg-stable

annotate mercurial/merge.py @ 3311:966632304dde

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merge: shortcircuit filemerge for identical files - use filectx.cmp to compare files - move merge messages into filemerge - kill the redundant resolving message - update tests
author Matt Mackall <mpm@selenic.com>
date Tue, 10 Oct 2006 01:16:06 -0500
parents e8be5942335d
children c5075ad5e3e9
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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, wctx, mctx):
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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 wctx, mctx = working and merge changecontexts
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19
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20 TODO:
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21 if fw is copied in the working directory, we get confused
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22 implement move and fd
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23 """
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24
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25 def temp(prefix, ctx):
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26 pre = "%s~%s." % (os.path.basename(ctx.path()), prefix)
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27 (fd, name) = tempfile.mkstemp(prefix=pre)
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28 f = os.fdopen(fd, "wb")
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29 repo.wwrite(ctx.path(), ctx.data(), f)
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30 f.close()
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31 return name
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32
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33 fcm = wctx.filectx(fw)
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34 fco = mctx.filectx(fo)
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35
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36 if not fco.cmp(fcm.data()): # files identical?
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37 return 0
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38
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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 if fw != fo:
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47 repo.ui.status(_("merging %s and %s\n") % (fw, fo))
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48 else:
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49 repo.ui.status(_("merging %s\n") % fw)
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50
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51 repo.ui.debug(_("my %s other %s ancestor %s\n") % (fcm, fco, fca))
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52
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53 cmd = (os.environ.get("HGMERGE") or repo.ui.config("ui", "merge")
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54 or "hgmerge")
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55 r = util.system('%s "%s" "%s" "%s"' % (cmd, a, b, c), cwd=repo.root,
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56 environ={'HG_FILE': fw,
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57 'HG_MY_NODE': str(wctx.parents()[0]),
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58 'HG_OTHER_NODE': str(mctx)})
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59 if r:
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60 repo.ui.warn(_("merging %s failed!\n") % fw)
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61
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62 os.unlink(b)
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63 os.unlink(c)
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64 return r
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65
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66 def checkunknown(repo, m2, wctx):
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67 """
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68 check for collisions between unknown files and files in m2
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69 """
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70 for f in wctx.unknown():
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71 if f in m2:
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72 if repo.file(f).cmp(m2[f], repo.wread(f)):
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73 raise util.Abort(_("'%s' already exists in the working"
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74 " dir and differs from remote") % f)
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75
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76 def forgetremoved(m2, wctx):
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77 """
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78 Forget removed files
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79
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80 If we're jumping between revisions (as opposed to merging), and if
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81 neither the working directory nor the target rev has the file,
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82 then we need to remove it from the dirstate, to prevent the
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83 dirstate from listing the file when it is no longer in the
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84 manifest.
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85 """
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86
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87 action = []
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88
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89 for f in wctx.deleted() + wctx.removed():
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90 if f not in m2:
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91 action.append((f, "f"))
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92
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93 return action
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94
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95 def nonoverlap(d1, d2):
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96 """
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97 Return list of elements in d1 not in d2
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98 """
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99
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100 l = []
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101 for d in d1:
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102 if d not in d2:
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103 l.append(d)
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104
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105 l.sort()
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106 return l
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107
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108 def findold(fctx, limit):
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109 """
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110 find files that path was copied from, back to linkrev limit
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111 """
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112
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113 old = {}
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114 orig = fctx.path()
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115 visit = [fctx]
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116 while visit:
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117 fc = visit.pop()
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118 if fc.rev() < limit:
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119 continue
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120 if fc.path() != orig and fc.path() not in old:
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121 old[fc.path()] = 1
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122 visit += fc.parents()
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123
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124 old = old.keys()
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125 old.sort()
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126 return old
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127
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128 def findcopies(repo, m1, m2, limit):
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129 """
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130 Find moves and copies between m1 and m2 back to limit linkrev
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131 """
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132
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133 if not repo.ui.config("merge", "followcopies"):
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134 return {}
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135
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136 # avoid silly behavior for update from empty dir
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137 if not m1:
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138 return {}
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139
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140 dcopies = repo.dirstate.copies()
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141 copy = {}
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142 match = {}
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143 u1 = nonoverlap(m1, m2)
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144 u2 = nonoverlap(m2, m1)
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145 ctx = util.cachefunc(lambda f,n: repo.filectx(f, fileid=n[:20]))
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146
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147 def checkpair(c, f2, man):
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148 ''' check if an apparent pair actually matches '''
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149 c2 = ctx(f2, man[f2])
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150 ca = c.ancestor(c2)
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151 if ca and ca.path() == c.path() or ca.path() == c2.path():
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152 copy[c.path()] = f2
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diff changeset
153 copy[f2] = c.path()
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diff changeset
154
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diff changeset
155 for f in u1:
3155
56c59ba7aa76 findcopies: use dirstate rename information
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parents: 3153
diff changeset
156 c = ctx(dcopies.get(f, f), m1[f])
3153
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diff changeset
157 for of in findold(c, limit):
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diff changeset
158 if of in m2:
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diff changeset
159 checkpair(c, of, m2)
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diff changeset
160 else:
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parents: 3121
diff changeset
161 match.setdefault(of, []).append(f)
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diff changeset
162
c82ea81d6850 Add core copy detection algorithm
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parents: 3121
diff changeset
163 for f in u2:
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diff changeset
164 c = ctx(f, m2[f])
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diff changeset
165 for of in findold(c, limit):
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parents: 3121
diff changeset
166 if of in m1:
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parents: 3121
diff changeset
167 checkpair(c, of, m1)
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diff changeset
168 elif of in match:
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parents: 3121
diff changeset
169 for mf in match[of]:
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parents: 3121
diff changeset
170 checkpair(c, mf, m1)
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diff changeset
171
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diff changeset
172 return copy
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diff changeset
173
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diff changeset
174 def manifestmerge(repo, p1, p2, pa, overwrite, partial):
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diff changeset
175 """
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176 Merge manifest m1 with m2 using ancestor ma and generate merge action list
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diff changeset
177 """
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diff changeset
178
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diff changeset
179 m1 = p1.manifest()
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diff changeset
180 m2 = p2.manifest()
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diff changeset
181 ma = pa.manifest()
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parents: 3292
diff changeset
182 backwards = (pa == p2)
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diff changeset
183
3249
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diff changeset
184 def fmerge(f, f2=None, fa=None):
3118
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diff changeset
185 """merge executable flags"""
3249
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diff changeset
186 if not f2:
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diff changeset
187 f2 = f
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diff changeset
188 fa = f
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diff changeset
189 a, b, c = ma.execf(fa), m1.execf(f), m2.execf(f2)
3118
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diff changeset
190 return ((a^b) | (a^c)) ^ a
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diff changeset
191
3105
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diff changeset
192 action = []
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diff changeset
193
3307
f009a6f12a59 merge: swap file and mode args for act()
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diff changeset
194 def act(msg, m, f, *args):
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diff changeset
195 repo.ui.debug(" %s: %s -> %s\n" % (f, msg, m))
3121
2ef0b3aae186 merge: simplify actions with helper function
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parents: 3120
diff changeset
196 action.append((f, m) + args)
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diff changeset
197
3295
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diff changeset
198 copy = {}
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diff changeset
199 if not (backwards or overwrite):
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diff changeset
200 copy = findcopies(repo, m1, m2, pa.rev())
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diff changeset
201
3105
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diff changeset
202 # Compare manifests
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diff changeset
203 for f, n in m1.iteritems():
3248
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diff changeset
204 if partial and not partial(f):
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diff changeset
205 continue
3105
7c7469d41ade merge: pull manifest comparison out into separate function
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parents: 3104
diff changeset
206 if f in m2:
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diff changeset
207 # are files different?
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diff changeset
208 if n != m2[f]:
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parents: 3104
diff changeset
209 a = ma.get(f, nullid)
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parents: 3104
diff changeset
210 # are both different from the ancestor?
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parents: 3104
diff changeset
211 if not overwrite and n != a and m2[f] != a:
3308
ecc1bf27378c merge: unify merge and copy actions
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parents: 3307
diff changeset
212 act("versions differ", "m", f, f, f, fmerge(f), False)
3105
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diff changeset
213 # are we clobbering?
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diff changeset
214 # is remote's version newer?
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parents: 3104
diff changeset
215 # or are we going back in time and clean?
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diff changeset
216 elif overwrite or m2[f] != a or (backwards and not n[20:]):
3307
f009a6f12a59 merge: swap file and mode args for act()
Matt Mackall <mpm@selenic.com>
parents: 3306
diff changeset
217 act("remote is newer", "g", f, m2.execf(f))
3113
d1d1cd5b9484 merge: eliminate confusing queued variable
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parents: 3112
diff changeset
218 # local is newer, not overwrite, check mode bits
3118
5644a05a608c merge: simplify exec flag handling
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parents: 3117
diff changeset
219 elif fmerge(f) != m1.execf(f):
3307
f009a6f12a59 merge: swap file and mode args for act()
Matt Mackall <mpm@selenic.com>
parents: 3306
diff changeset
220 act("update permissions", "e", f, m2.execf(f))
3113
d1d1cd5b9484 merge: eliminate confusing queued variable
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parents: 3112
diff changeset
221 # contents same, check mode bits
d1d1cd5b9484 merge: eliminate confusing queued variable
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parents: 3112
diff changeset
222 elif m1.execf(f) != m2.execf(f):
3120
1c1e59aac82a merge: simplify local created logic
Matt Mackall <mpm@selenic.com>
parents: 3119
diff changeset
223 if overwrite or fmerge(f) != m1.execf(f):
3307
f009a6f12a59 merge: swap file and mode args for act()
Matt Mackall <mpm@selenic.com>
parents: 3306
diff changeset
224 act("update permissions", "e", f, m2.execf(f))
3249
f05c182430a0 merge: add rename following
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diff changeset
225 elif f in copy:
f05c182430a0 merge: add rename following
Matt Mackall <mpm@selenic.com>
parents: 3248
diff changeset
226 f2 = copy[f]
f05c182430a0 merge: add rename following
Matt Mackall <mpm@selenic.com>
parents: 3248
diff changeset
227 if f in ma: # case 3,20 A/B/A
3308
ecc1bf27378c merge: unify merge and copy actions
Matt Mackall <mpm@selenic.com>
parents: 3307
diff changeset
228 act("remote moved", "m", f, f2, f2, fmerge(f, f2, f), True)
3249
f05c182430a0 merge: add rename following
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parents: 3248
diff changeset
229 else:
f05c182430a0 merge: add rename following
Matt Mackall <mpm@selenic.com>
parents: 3248
diff changeset
230 if f2 in m1: # case 2 A,B/B/B
3308
ecc1bf27378c merge: unify merge and copy actions
Matt Mackall <mpm@selenic.com>
parents: 3307
diff changeset
231 act("local copied", "m",
3307
f009a6f12a59 merge: swap file and mode args for act()
Matt Mackall <mpm@selenic.com>
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diff changeset
232 f, f2, f, fmerge(f, f2, f2), False)
3249
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diff changeset
233 else: # case 4,21 A/B/B
3308
ecc1bf27378c merge: unify merge and copy actions
Matt Mackall <mpm@selenic.com>
parents: 3307
diff changeset
234 act("local moved", "m",
3307
f009a6f12a59 merge: swap file and mode args for act()
Matt Mackall <mpm@selenic.com>
parents: 3306
diff changeset
235 f, f2, f, fmerge(f, f2, f2), False)
3105
7c7469d41ade merge: pull manifest comparison out into separate function
Matt Mackall <mpm@selenic.com>
parents: 3104
diff changeset
236 elif f in ma:
3117
7a635ef25132 merge: simplify tests for local changed/remote deleted
Matt Mackall <mpm@selenic.com>
parents: 3116
diff changeset
237 if n != ma[f] and not overwrite:
3295
72d1e521da77 merge: use contexts for manifestmerge
Matt Mackall <mpm@selenic.com>
parents: 3292
diff changeset
238 if repo.ui.prompt(
3117
7a635ef25132 merge: simplify tests for local changed/remote deleted
Matt Mackall <mpm@selenic.com>
parents: 3116
diff changeset
239 (_(" local changed %s which remote deleted\n") % f) +
3119
b1de36a4b4df merge: simplify prompt code
Matt Mackall <mpm@selenic.com>
parents: 3118
diff changeset
240 _("(k)eep or (d)elete?"), _("[kd]"), _("k")) == _("d"):
3307
f009a6f12a59 merge: swap file and mode args for act()
Matt Mackall <mpm@selenic.com>
parents: 3306
diff changeset
241 act("prompt delete", "r", f)
3105
7c7469d41ade merge: pull manifest comparison out into separate function
Matt Mackall <mpm@selenic.com>
parents: 3104
diff changeset
242 else:
3307
f009a6f12a59 merge: swap file and mode args for act()
Matt Mackall <mpm@selenic.com>
parents: 3306
diff changeset
243 act("other deleted", "r", f)
3105
7c7469d41ade merge: pull manifest comparison out into separate function
Matt Mackall <mpm@selenic.com>
parents: 3104
diff changeset
244 else:
7c7469d41ade merge: pull manifest comparison out into separate function
Matt Mackall <mpm@selenic.com>
parents: 3104
diff changeset
245 # file is created on branch or in working directory
3120
1c1e59aac82a merge: simplify local created logic
Matt Mackall <mpm@selenic.com>
parents: 3119
diff changeset
246 if (overwrite and n[20:] != "u") or (backwards and not n[20:]):
3307
f009a6f12a59 merge: swap file and mode args for act()
Matt Mackall <mpm@selenic.com>
parents: 3306
diff changeset
247 act("remote deleted", "r", f)
3105
7c7469d41ade merge: pull manifest comparison out into separate function
Matt Mackall <mpm@selenic.com>
parents: 3104
diff changeset
248
7c7469d41ade merge: pull manifest comparison out into separate function
Matt Mackall <mpm@selenic.com>
parents: 3104
diff changeset
249 for f, n in m2.iteritems():
3248
751840e739a1 merge: reduce manifest copying
Matt Mackall <mpm@selenic.com>
parents: 3247
diff changeset
250 if partial and not partial(f):
751840e739a1 merge: reduce manifest copying
Matt Mackall <mpm@selenic.com>
parents: 3247
diff changeset
251 continue
751840e739a1 merge: reduce manifest copying
Matt Mackall <mpm@selenic.com>
parents: 3247
diff changeset
252 if f in m1:
751840e739a1 merge: reduce manifest copying
Matt Mackall <mpm@selenic.com>
parents: 3247
diff changeset
253 continue
3249
f05c182430a0 merge: add rename following
Matt Mackall <mpm@selenic.com>
parents: 3248
diff changeset
254 if f in copy:
f05c182430a0 merge: add rename following
Matt Mackall <mpm@selenic.com>
parents: 3248
diff changeset
255 f2 = copy[f]
3252
ae85272b59a4 merge: copy fixes and tests
Matt Mackall <mpm@selenic.com>
parents: 3251
diff changeset
256 if f2 not in m2: # already seen
3249
f05c182430a0 merge: add rename following
Matt Mackall <mpm@selenic.com>
parents: 3248
diff changeset
257 continue
f05c182430a0 merge: add rename following
Matt Mackall <mpm@selenic.com>
parents: 3248
diff changeset
258 # rename case 1, A/A,B/A
3308
ecc1bf27378c merge: unify merge and copy actions
Matt Mackall <mpm@selenic.com>
parents: 3307
diff changeset
259 act("remote copied", "m", f2, f, f, fmerge(f2, f, f2), False)
3249
f05c182430a0 merge: add rename following
Matt Mackall <mpm@selenic.com>
parents: 3248
diff changeset
260 elif f in ma:
3116
920f54a2249e merge: more simplification of m2 manifest scanning
Matt Mackall <mpm@selenic.com>
parents: 3115
diff changeset
261 if overwrite or backwards:
3307
f009a6f12a59 merge: swap file and mode args for act()
Matt Mackall <mpm@selenic.com>
parents: 3306
diff changeset
262 act("recreating", "g", f, m2.execf(f))
3116
920f54a2249e merge: more simplification of m2 manifest scanning
Matt Mackall <mpm@selenic.com>
parents: 3115
diff changeset
263 elif n != ma[f]:
3295
72d1e521da77 merge: use contexts for manifestmerge
Matt Mackall <mpm@selenic.com>
parents: 3292
diff changeset
264 if repo.ui.prompt(
3116
920f54a2249e merge: more simplification of m2 manifest scanning
Matt Mackall <mpm@selenic.com>
parents: 3115
diff changeset
265 (_("remote changed %s which local deleted\n") % f) +
3119
b1de36a4b4df merge: simplify prompt code
Matt Mackall <mpm@selenic.com>
parents: 3118
diff changeset
266 _("(k)eep or (d)elete?"), _("[kd]"), _("k")) == _("k"):
3307
f009a6f12a59 merge: swap file and mode args for act()
Matt Mackall <mpm@selenic.com>
parents: 3306
diff changeset
267 act("prompt recreating", "g", f, m2.execf(f))
3115
bb74f809bc95 merge: reorder tests on m2 items in manifestmerge
Matt Mackall <mpm@selenic.com>
parents: 3114
diff changeset
268 else:
3307
f009a6f12a59 merge: swap file and mode args for act()
Matt Mackall <mpm@selenic.com>
parents: 3306
diff changeset
269 act("remote created", "g", f, m2.execf(f))
3105
7c7469d41ade merge: pull manifest comparison out into separate function
Matt Mackall <mpm@selenic.com>
parents: 3104
diff changeset
270
7c7469d41ade merge: pull manifest comparison out into separate function
Matt Mackall <mpm@selenic.com>
parents: 3104
diff changeset
271 return action
7c7469d41ade merge: pull manifest comparison out into separate function
Matt Mackall <mpm@selenic.com>
parents: 3104
diff changeset
272
3297
69b9471f26bb merge: pass contexts to applyupdates
Matt Mackall <mpm@selenic.com>
parents: 3296
diff changeset
273 def applyupdates(repo, action, wctx, mctx):
3111
5cc62d99b785 merge: move apply and dirstate code into separate functions
Matt Mackall <mpm@selenic.com>
parents: 3110
diff changeset
274 updated, merged, removed, unresolved = 0, 0, 0, 0
5cc62d99b785 merge: move apply and dirstate code into separate functions
Matt Mackall <mpm@selenic.com>
parents: 3110
diff changeset
275 action.sort()
5cc62d99b785 merge: move apply and dirstate code into separate functions
Matt Mackall <mpm@selenic.com>
parents: 3110
diff changeset
276 for a in action:
5cc62d99b785 merge: move apply and dirstate code into separate functions
Matt Mackall <mpm@selenic.com>
parents: 3110
diff changeset
277 f, m = a[:2]
5cc62d99b785 merge: move apply and dirstate code into separate functions
Matt Mackall <mpm@selenic.com>
parents: 3110
diff changeset
278 if f[0] == "/":
5cc62d99b785 merge: move apply and dirstate code into separate functions
Matt Mackall <mpm@selenic.com>
parents: 3110
diff changeset
279 continue
5cc62d99b785 merge: move apply and dirstate code into separate functions
Matt Mackall <mpm@selenic.com>
parents: 3110
diff changeset
280 if m == "r": # remove
5cc62d99b785 merge: move apply and dirstate code into separate functions
Matt Mackall <mpm@selenic.com>
parents: 3110
diff changeset
281 repo.ui.note(_("removing %s\n") % f)
5cc62d99b785 merge: move apply and dirstate code into separate functions
Matt Mackall <mpm@selenic.com>
parents: 3110
diff changeset
282 util.audit_path(f)
5cc62d99b785 merge: move apply and dirstate code into separate functions
Matt Mackall <mpm@selenic.com>
parents: 3110
diff changeset
283 try:
5cc62d99b785 merge: move apply and dirstate code into separate functions
Matt Mackall <mpm@selenic.com>
parents: 3110
diff changeset
284 util.unlink(repo.wjoin(f))
5cc62d99b785 merge: move apply and dirstate code into separate functions
Matt Mackall <mpm@selenic.com>
parents: 3110
diff changeset
285 except OSError, inst:
5cc62d99b785 merge: move apply and dirstate code into separate functions
Matt Mackall <mpm@selenic.com>
parents: 3110
diff changeset
286 if inst.errno != errno.ENOENT:
5cc62d99b785 merge: move apply and dirstate code into separate functions
Matt Mackall <mpm@selenic.com>
parents: 3110
diff changeset
287 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: 3110
diff changeset
288 (f, inst.strerror))
5cc62d99b785 merge: move apply and dirstate code into separate functions
Matt Mackall <mpm@selenic.com>
parents: 3110
diff changeset
289 removed +=1
3308
ecc1bf27378c merge: unify merge and copy actions
Matt Mackall <mpm@selenic.com>
parents: 3307
diff changeset
290 elif m == "m": # merge
3303
488d3062d225 merge: eliminate nodes from action list
Matt Mackall <mpm@selenic.com>
parents: 3299
diff changeset
291 f2, fd, flag, move = a[2:]
3309
e8be5942335d merge: pull file copy/move out of filemerge
Matt Mackall <mpm@selenic.com>
parents: 3308
diff changeset
292 if filemerge(repo, f, f2, wctx, mctx):
3249
f05c182430a0 merge: add rename following
Matt Mackall <mpm@selenic.com>
parents: 3248
diff changeset
293 unresolved += 1
3309
e8be5942335d merge: pull file copy/move out of filemerge
Matt Mackall <mpm@selenic.com>
parents: 3308
diff changeset
294 else:
e8be5942335d merge: pull file copy/move out of filemerge
Matt Mackall <mpm@selenic.com>
parents: 3308
diff changeset
295 if f != fd:
e8be5942335d merge: pull file copy/move out of filemerge
Matt Mackall <mpm@selenic.com>
parents: 3308
diff changeset
296 repo.ui.debug(_("copying %s to %s\n") % (f, fd))
e8be5942335d merge: pull file copy/move out of filemerge
Matt Mackall <mpm@selenic.com>
parents: 3308
diff changeset
297 repo.wwrite(fd, repo.wread(f))
e8be5942335d merge: pull file copy/move out of filemerge
Matt Mackall <mpm@selenic.com>
parents: 3308
diff changeset
298 if move:
e8be5942335d merge: pull file copy/move out of filemerge
Matt Mackall <mpm@selenic.com>
parents: 3308
diff changeset
299 repo.ui.debug(_("removing %s\n") % f)
e8be5942335d merge: pull file copy/move out of filemerge
Matt Mackall <mpm@selenic.com>
parents: 3308
diff changeset
300 os.unlink(repo.wjoin(f))
e8be5942335d merge: pull file copy/move out of filemerge
Matt Mackall <mpm@selenic.com>
parents: 3308
diff changeset
301
3249
f05c182430a0 merge: add rename following
Matt Mackall <mpm@selenic.com>
parents: 3248
diff changeset
302 util.set_exec(repo.wjoin(fd), flag)
f05c182430a0 merge: add rename following
Matt Mackall <mpm@selenic.com>
parents: 3248
diff changeset
303 merged += 1
3111
5cc62d99b785 merge: move apply and dirstate code into separate functions
Matt Mackall <mpm@selenic.com>
parents: 3110
diff changeset
304 elif m == "g": # get
3306
5c9806554d65 merge: finish removing nodes from action list
Matt Mackall <mpm@selenic.com>
parents: 3303
diff changeset
305 flag = a[2]
3111
5cc62d99b785 merge: move apply and dirstate code into separate functions
Matt Mackall <mpm@selenic.com>
parents: 3110
diff changeset
306 repo.ui.note(_("getting %s\n") % f)
3303
488d3062d225 merge: eliminate nodes from action list
Matt Mackall <mpm@selenic.com>
parents: 3299
diff changeset
307 t = mctx.filectx(f).data()
3111
5cc62d99b785 merge: move apply and dirstate code into separate functions
Matt Mackall <mpm@selenic.com>
parents: 3110
diff changeset
308 repo.wwrite(f, t)
5cc62d99b785 merge: move apply and dirstate code into separate functions
Matt Mackall <mpm@selenic.com>
parents: 3110
diff changeset
309 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
310 updated += 1
5cc62d99b785 merge: move apply and dirstate code into separate functions
Matt Mackall <mpm@selenic.com>
parents: 3110
diff changeset
311 elif m == "e": # exec
3303
488d3062d225 merge: eliminate nodes from action list
Matt Mackall <mpm@selenic.com>
parents: 3299
diff changeset
312 flag = a[2]
3111
5cc62d99b785 merge: move apply and dirstate code into separate functions
Matt Mackall <mpm@selenic.com>
parents: 3110
diff changeset
313 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
314
5cc62d99b785 merge: move apply and dirstate code into separate functions
Matt Mackall <mpm@selenic.com>
parents: 3110
diff changeset
315 return updated, merged, removed, unresolved
5cc62d99b785 merge: move apply and dirstate code into separate functions
Matt Mackall <mpm@selenic.com>
parents: 3110
diff changeset
316
3303
488d3062d225 merge: eliminate nodes from action list
Matt Mackall <mpm@selenic.com>
parents: 3299
diff changeset
317 def recordupdates(repo, action, branchmerge, mctx):
3111
5cc62d99b785 merge: move apply and dirstate code into separate functions
Matt Mackall <mpm@selenic.com>
parents: 3110
diff changeset
318 for a in action:
5cc62d99b785 merge: move apply and dirstate code into separate functions
Matt Mackall <mpm@selenic.com>
parents: 3110
diff changeset
319 f, m = a[:2]
5cc62d99b785 merge: move apply and dirstate code into separate functions
Matt Mackall <mpm@selenic.com>
parents: 3110
diff changeset
320 if m == "r": # remove
5cc62d99b785 merge: move apply and dirstate code into separate functions
Matt Mackall <mpm@selenic.com>
parents: 3110
diff changeset
321 if branchmerge:
5cc62d99b785 merge: move apply and dirstate code into separate functions
Matt Mackall <mpm@selenic.com>
parents: 3110
diff changeset
322 repo.dirstate.update([f], 'r')
5cc62d99b785 merge: move apply and dirstate code into separate functions
Matt Mackall <mpm@selenic.com>
parents: 3110
diff changeset
323 else:
5cc62d99b785 merge: move apply and dirstate code into separate functions
Matt Mackall <mpm@selenic.com>
parents: 3110
diff changeset
324 repo.dirstate.forget([f])
5cc62d99b785 merge: move apply and dirstate code into separate functions
Matt Mackall <mpm@selenic.com>
parents: 3110
diff changeset
325 elif m == "f": # forget
5cc62d99b785 merge: move apply and dirstate code into separate functions
Matt Mackall <mpm@selenic.com>
parents: 3110
diff changeset
326 repo.dirstate.forget([f])
5cc62d99b785 merge: move apply and dirstate code into separate functions
Matt Mackall <mpm@selenic.com>
parents: 3110
diff changeset
327 elif m == "g": # get
5cc62d99b785 merge: move apply and dirstate code into separate functions
Matt Mackall <mpm@selenic.com>
parents: 3110
diff changeset
328 if branchmerge:
5cc62d99b785 merge: move apply and dirstate code into separate functions
Matt Mackall <mpm@selenic.com>
parents: 3110
diff changeset
329 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
330 else:
5cc62d99b785 merge: move apply and dirstate code into separate functions
Matt Mackall <mpm@selenic.com>
parents: 3110
diff changeset
331 repo.dirstate.update([f], 'n')
5cc62d99b785 merge: move apply and dirstate code into separate functions
Matt Mackall <mpm@selenic.com>
parents: 3110
diff changeset
332 elif m == "m": # merge
3303
488d3062d225 merge: eliminate nodes from action list
Matt Mackall <mpm@selenic.com>
parents: 3299
diff changeset
333 f2, fd, flag, move = a[2:]
3251
c93ce7f10f85 merge: fixes for merge+rename
Matt Mackall <mpm@selenic.com>
parents: 3249
diff changeset
334 if branchmerge:
c93ce7f10f85 merge: fixes for merge+rename
Matt Mackall <mpm@selenic.com>
parents: 3249
diff changeset
335 # 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
336 # so that we properly record the merger later
c93ce7f10f85 merge: fixes for merge+rename
Matt Mackall <mpm@selenic.com>
parents: 3249
diff changeset
337 repo.dirstate.update([fd], 'm')
c93ce7f10f85 merge: fixes for merge+rename
Matt Mackall <mpm@selenic.com>
parents: 3249
diff changeset
338 else:
c93ce7f10f85 merge: fixes for merge+rename
Matt Mackall <mpm@selenic.com>
parents: 3249
diff changeset
339 # We've update-merged a locally modified file, so
c93ce7f10f85 merge: fixes for merge+rename
Matt Mackall <mpm@selenic.com>
parents: 3249
diff changeset
340 # we set the dirstate to emulate a normal checkout
c93ce7f10f85 merge: fixes for merge+rename
Matt Mackall <mpm@selenic.com>
parents: 3249
diff changeset
341 # 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
342 # merge will appear as a normal local file
c93ce7f10f85 merge: fixes for merge+rename
Matt Mackall <mpm@selenic.com>
parents: 3249
diff changeset
343 # modification.
3303
488d3062d225 merge: eliminate nodes from action list
Matt Mackall <mpm@selenic.com>
parents: 3299
diff changeset
344 f_len = mctx.filectx(f).size()
3251
c93ce7f10f85 merge: fixes for merge+rename
Matt Mackall <mpm@selenic.com>
parents: 3249
diff changeset
345 repo.dirstate.update([fd], 'n', st_size=f_len, st_mtime=-1)
3308
ecc1bf27378c merge: unify merge and copy actions
Matt Mackall <mpm@selenic.com>
parents: 3307
diff changeset
346 if f != f2: # copy/rename
ecc1bf27378c merge: unify merge and copy actions
Matt Mackall <mpm@selenic.com>
parents: 3307
diff changeset
347 if move:
ecc1bf27378c merge: unify merge and copy actions
Matt Mackall <mpm@selenic.com>
parents: 3307
diff changeset
348 repo.dirstate.update([f], 'r')
ecc1bf27378c merge: unify merge and copy actions
Matt Mackall <mpm@selenic.com>
parents: 3307
diff changeset
349 if f != fd:
ecc1bf27378c merge: unify merge and copy actions
Matt Mackall <mpm@selenic.com>
parents: 3307
diff changeset
350 repo.dirstate.copy(f, fd)
ecc1bf27378c merge: unify merge and copy actions
Matt Mackall <mpm@selenic.com>
parents: 3307
diff changeset
351 else:
ecc1bf27378c merge: unify merge and copy actions
Matt Mackall <mpm@selenic.com>
parents: 3307
diff changeset
352 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
353
2811
1ea086bc2086 Merge: combine choose and moddirstate to partial
Matt Mackall <mpm@selenic.com>
parents: 2810
diff changeset
354 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
355 wlock=None, show_stats=True, remind=True):
4870f795f681 Merge: combine force and forcemerge arguments
Matt Mackall <mpm@selenic.com>
parents: 2814
diff changeset
356
4870f795f681 Merge: combine force and forcemerge arguments
Matt Mackall <mpm@selenic.com>
parents: 2814
diff changeset
357 overwrite = force and not branchmerge
4870f795f681 Merge: combine force and forcemerge arguments
Matt Mackall <mpm@selenic.com>
parents: 2814
diff changeset
358 forcemerge = force and branchmerge
2812
3aeab7bb5adc Refactor update locking slightly
Matt Mackall <mpm@selenic.com>
parents: 2811
diff changeset
359
3aeab7bb5adc Refactor update locking slightly
Matt Mackall <mpm@selenic.com>
parents: 2811
diff changeset
360 if not wlock:
3aeab7bb5adc Refactor update locking slightly
Matt Mackall <mpm@selenic.com>
parents: 2811
diff changeset
361 wlock = repo.wlock()
3aeab7bb5adc Refactor update locking slightly
Matt Mackall <mpm@selenic.com>
parents: 2811
diff changeset
362
2814
0f787997e3c2 Merge: move most tests to the beginning
Matt Mackall <mpm@selenic.com>
parents: 2813
diff changeset
363 ### check phase
0f787997e3c2 Merge: move most tests to the beginning
Matt Mackall <mpm@selenic.com>
parents: 2813
diff changeset
364
3218
8d4855fd9d7b merge: use new working context object in update
Matt Mackall <mpm@selenic.com>
parents: 3212
diff changeset
365 wc = repo.workingctx()
8d4855fd9d7b merge: use new working context object in update
Matt Mackall <mpm@selenic.com>
parents: 3212
diff changeset
366 pl = wc.parents()
3167
e67c22bc8bba merge: use repo.parents and parent contexts in update
Matt Mackall <mpm@selenic.com>
parents: 3162
diff changeset
367 if not overwrite and len(pl) > 1:
2775
b550cd82f92a Move merge code to its own module
Matt Mackall <mpm@selenic.com>
parents:
diff changeset
368 raise util.Abort(_("outstanding uncommitted merges"))
b550cd82f92a Move merge code to its own module
Matt Mackall <mpm@selenic.com>
parents:
diff changeset
369
3167
e67c22bc8bba merge: use repo.parents and parent contexts in update
Matt Mackall <mpm@selenic.com>
parents: 3162
diff changeset
370 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
371 pa = p1.ancestor(p2)
2814
0f787997e3c2 Merge: move most tests to the beginning
Matt Mackall <mpm@selenic.com>
parents: 2813
diff changeset
372
0f787997e3c2 Merge: move most tests to the beginning
Matt Mackall <mpm@selenic.com>
parents: 2813
diff changeset
373 # is there a linear path from p1 to p2?
3110
40e777bda455 merge: remove linear variable
Matt Mackall <mpm@selenic.com>
parents: 3109
diff changeset
374 if pa == p1 or pa == p2:
40e777bda455 merge: remove linear variable
Matt Mackall <mpm@selenic.com>
parents: 3109
diff changeset
375 if branchmerge:
40e777bda455 merge: remove linear variable
Matt Mackall <mpm@selenic.com>
parents: 3109
diff changeset
376 raise util.Abort(_("there is nothing to merge, just use "
40e777bda455 merge: remove linear variable
Matt Mackall <mpm@selenic.com>
parents: 3109
diff changeset
377 "'hg update' or look at 'hg heads'"))
40e777bda455 merge: remove linear variable
Matt Mackall <mpm@selenic.com>
parents: 3109
diff changeset
378 elif not (overwrite or branchmerge):
2815
4870f795f681 Merge: combine force and forcemerge arguments
Matt Mackall <mpm@selenic.com>
parents: 2814
diff changeset
379 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
380 "or 'hg update -C' to lose changes"))
0f787997e3c2 Merge: move most tests to the beginning
Matt Mackall <mpm@selenic.com>
parents: 2813
diff changeset
381
0f787997e3c2 Merge: move most tests to the beginning
Matt Mackall <mpm@selenic.com>
parents: 2813
diff changeset
382 if branchmerge and not forcemerge:
3218
8d4855fd9d7b merge: use new working context object in update
Matt Mackall <mpm@selenic.com>
parents: 3212
diff changeset
383 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
384 raise util.Abort(_("outstanding uncommitted changes"))
0f787997e3c2 Merge: move most tests to the beginning
Matt Mackall <mpm@selenic.com>
parents: 2813
diff changeset
385
3248
751840e739a1 merge: reduce manifest copying
Matt Mackall <mpm@selenic.com>
parents: 3247
diff changeset
386 m1 = wc.manifest()
751840e739a1 merge: reduce manifest copying
Matt Mackall <mpm@selenic.com>
parents: 3247
diff changeset
387 m2 = p2.manifest()
2775
b550cd82f92a Move merge code to its own module
Matt Mackall <mpm@selenic.com>
parents:
diff changeset
388
b550cd82f92a Move merge code to its own module
Matt Mackall <mpm@selenic.com>
parents:
diff changeset
389 # resolve the manifest to determine which files
b550cd82f92a Move merge code to its own module
Matt Mackall <mpm@selenic.com>
parents:
diff changeset
390 # we care about merging
b550cd82f92a Move merge code to its own module
Matt Mackall <mpm@selenic.com>
parents:
diff changeset
391 repo.ui.note(_("resolving manifests\n"))
3110
40e777bda455 merge: remove linear variable
Matt Mackall <mpm@selenic.com>
parents: 3109
diff changeset
392 repo.ui.debug(_(" overwrite %s branchmerge %s partial %s\n") %
40e777bda455 merge: remove linear variable
Matt Mackall <mpm@selenic.com>
parents: 3109
diff changeset
393 (overwrite, branchmerge, bool(partial)))
3167
e67c22bc8bba merge: use repo.parents and parent contexts in update
Matt Mackall <mpm@selenic.com>
parents: 3162
diff changeset
394 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
395
3100
87ea5a71f7b9 merge: convert actions to list
Matt Mackall <mpm@selenic.com>
parents: 2981
diff changeset
396 action = []
3155
56c59ba7aa76 findcopies: use dirstate rename information
Matt Mackall <mpm@selenic.com>
parents: 3153
diff changeset
397
3107
3bd05ad67f45 merge: pull manifest checks and updates into separate functions
Matt Mackall <mpm@selenic.com>
parents: 3106
diff changeset
398 if not force:
3218
8d4855fd9d7b merge: use new working context object in update
Matt Mackall <mpm@selenic.com>
parents: 3212
diff changeset
399 checkunknown(repo, m2, wc)
3110
40e777bda455 merge: remove linear variable
Matt Mackall <mpm@selenic.com>
parents: 3109
diff changeset
400 if not branchmerge:
3218
8d4855fd9d7b merge: use new working context object in update
Matt Mackall <mpm@selenic.com>
parents: 3212
diff changeset
401 action += forgetremoved(m2, wc)
3153
c82ea81d6850 Add core copy detection algorithm
Matt Mackall <mpm@selenic.com>
parents: 3121
diff changeset
402
3295
72d1e521da77 merge: use contexts for manifestmerge
Matt Mackall <mpm@selenic.com>
parents: 3292
diff changeset
403 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
404
2897
dd032b0f02ac merge: move forgets to the apply stage
Matt Mackall <mpm@selenic.com>
parents: 2896
diff changeset
405 ### apply phase
dd032b0f02ac merge: move forgets to the apply stage
Matt Mackall <mpm@selenic.com>
parents: 2896
diff changeset
406
3110
40e777bda455 merge: remove linear variable
Matt Mackall <mpm@selenic.com>
parents: 3109
diff changeset
407 if not branchmerge:
3296
20087b4bc6f9 merge: don't call hooks for revert
Matt Mackall <mpm@selenic.com>
parents: 3295
diff changeset
408 # just jump to the new rev
20087b4bc6f9 merge: don't call hooks for revert
Matt Mackall <mpm@selenic.com>
parents: 3295
diff changeset
409 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
410 else:
20087b4bc6f9 merge: don't call hooks for revert
Matt Mackall <mpm@selenic.com>
parents: 3295
diff changeset
411 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
412
3296
20087b4bc6f9 merge: don't call hooks for revert
Matt Mackall <mpm@selenic.com>
parents: 3295
diff changeset
413 if not partial:
20087b4bc6f9 merge: don't call hooks for revert
Matt Mackall <mpm@selenic.com>
parents: 3295
diff changeset
414 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
415
3297
69b9471f26bb merge: pass contexts to applyupdates
Matt Mackall <mpm@selenic.com>
parents: 3296
diff changeset
416 updated, merged, removed, unresolved = applyupdates(repo, action, wc, p2)
2899
8743188f4d2e merge: consolidate dirstate updates
Matt Mackall <mpm@selenic.com>
parents: 2898
diff changeset
417
8743188f4d2e merge: consolidate dirstate updates
Matt Mackall <mpm@selenic.com>
parents: 2898
diff changeset
418 # update dirstate
8743188f4d2e merge: consolidate dirstate updates
Matt Mackall <mpm@selenic.com>
parents: 2898
diff changeset
419 if not partial:
3303
488d3062d225 merge: eliminate nodes from action list
Matt Mackall <mpm@selenic.com>
parents: 3299
diff changeset
420 recordupdates(repo, action, branchmerge, p2)
3296
20087b4bc6f9 merge: don't call hooks for revert
Matt Mackall <mpm@selenic.com>
parents: 3295
diff changeset
421 repo.dirstate.setparents(fp1, fp2)
20087b4bc6f9 merge: don't call hooks for revert
Matt Mackall <mpm@selenic.com>
parents: 3295
diff changeset
422 repo.hook('update', parent1=xp1, parent2=xp2, error=unresolved)
2775
b550cd82f92a Move merge code to its own module
Matt Mackall <mpm@selenic.com>
parents:
diff changeset
423
b550cd82f92a Move merge code to its own module
Matt Mackall <mpm@selenic.com>
parents:
diff changeset
424 if show_stats:
2977
87a0332ab58b merge: combine merge and get lists
Matt Mackall <mpm@selenic.com>
parents: 2976
diff changeset
425 stats = ((updated, _("updated")),
2980
54d85098fb82 merge: make unresolved a counter
Matt Mackall <mpm@selenic.com>
parents: 2979
diff changeset
426 (merged - unresolved, _("merged")),
2978
962b9c7df641 merge: add remove to the action hash
Matt Mackall <mpm@selenic.com>
parents: 2977
diff changeset
427 (removed, _("removed")),
2980
54d85098fb82 merge: make unresolved a counter
Matt Mackall <mpm@selenic.com>
parents: 2979
diff changeset
428 (unresolved, _("unresolved")))
2775
b550cd82f92a Move merge code to its own module
Matt Mackall <mpm@selenic.com>
parents:
diff changeset
429 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
430 repo.ui.status("%s\n" % note)
2811
1ea086bc2086 Merge: combine choose and moddirstate to partial
Matt Mackall <mpm@selenic.com>
parents: 2810
diff changeset
431 if not partial:
2810
ca06d35af65e Rename merge.allow -> merge.branchmerge
Matt Mackall <mpm@selenic.com>
parents: 2803
diff changeset
432 if branchmerge:
2813
56f99f5aab34 Merge: refactor err and failedmerge -> unresolved
Matt Mackall <mpm@selenic.com>
parents: 2812
diff changeset
433 if unresolved:
2775
b550cd82f92a Move merge code to its own module
Matt Mackall <mpm@selenic.com>
parents:
diff changeset
434 repo.ui.status(_("There are unresolved merges,"
b550cd82f92a Move merge code to its own module
Matt Mackall <mpm@selenic.com>
parents:
diff changeset
435 " you can redo the full merge using:\n"
b550cd82f92a Move merge code to its own module
Matt Mackall <mpm@selenic.com>
parents:
diff changeset
436 " hg update -C %s\n"
b550cd82f92a Move merge code to its own module
Matt Mackall <mpm@selenic.com>
parents:
diff changeset
437 " hg merge %s\n"
3167
e67c22bc8bba merge: use repo.parents and parent contexts in update
Matt Mackall <mpm@selenic.com>
parents: 3162
diff changeset
438 % (p1.rev(), p2.rev())))
2803
987c31e2a08c Merge with crew
Matt Mackall <mpm@selenic.com>
parents: 2775
diff changeset
439 elif remind:
2775
b550cd82f92a Move merge code to its own module
Matt Mackall <mpm@selenic.com>
parents:
diff changeset
440 repo.ui.status(_("(branch merge, don't forget to commit)\n"))
2813
56f99f5aab34 Merge: refactor err and failedmerge -> unresolved
Matt Mackall <mpm@selenic.com>
parents: 2812
diff changeset
441 elif unresolved:
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b550cd82f92a Move merge code to its own module
Matt Mackall <mpm@selenic.com>
parents:
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442 repo.ui.status(_("There are unresolved merges with"
b550cd82f92a Move merge code to its own module
Matt Mackall <mpm@selenic.com>
parents:
diff changeset
443 " locally modified files.\n"))
b550cd82f92a Move merge code to its own module
Matt Mackall <mpm@selenic.com>
parents:
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444
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54d85098fb82 merge: make unresolved a counter
Matt Mackall <mpm@selenic.com>
parents: 2979
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445 return unresolved
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b550cd82f92a Move merge code to its own module
Matt Mackall <mpm@selenic.com>
parents:
diff changeset
446