Mercurial > public > mercurial-scm > hg-stable

annotate mercurial/merge.py @ 3162:a9e75b371315

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merge: move partial filtering out of manifest merge
author Matt Mackall <mpm@selenic.com>
date Tue, 26 Sep 2006 16:21:52 -0500
parents 84561ea8711e
children e67c22bc8bba
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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 merge3(repo, fn, my, other, p1, p2):
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14 """perform a 3-way merge in the working directory"""
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15
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16 def temp(prefix, node):
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17 pre = "%s~%s." % (os.path.basename(fn), prefix)
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18 (fd, name) = tempfile.mkstemp(prefix=pre)
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19 f = os.fdopen(fd, "wb")
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20 repo.wwrite(fn, fl.read(node), f)
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21 f.close()
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22 return name
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23
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24 fl = repo.file(fn)
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25 base = fl.ancestor(my, other)
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26 a = repo.wjoin(fn)
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27 b = temp("base", base)
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28 c = temp("other", other)
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29
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30 repo.ui.note(_("resolving %s\n") % fn)
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31 repo.ui.debug(_("file %s: my %s other %s ancestor %s\n") %
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32 (fn, short(my), short(other), short(base)))
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33
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34 cmd = (os.environ.get("HGMERGE") or repo.ui.config("ui", "merge")
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35 or "hgmerge")
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36 r = util.system('%s "%s" "%s" "%s"' % (cmd, a, b, c), cwd=repo.root,
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37 environ={'HG_FILE': fn,
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38 'HG_MY_NODE': p1,
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39 'HG_OTHER_NODE': p2,
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40 'HG_FILE_MY_NODE': hex(my),
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41 'HG_FILE_OTHER_NODE': hex(other),
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42 'HG_FILE_BASE_NODE': hex(base)})
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43 if r:
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44 repo.ui.warn(_("merging %s failed!\n") % fn)
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45
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46 os.unlink(b)
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47 os.unlink(c)
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48 return r
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49
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50 def checkunknown(repo, m2, status):
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51 """
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52 check for collisions between unknown files and files in m2
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53 """
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54 modified, added, removed, deleted, unknown = status[:5]
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55 for f in unknown:
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56 if f in m2:
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57 if repo.file(f).cmp(m2[f], repo.wread(f)):
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58 raise util.Abort(_("'%s' already exists in the working"
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59 " dir and differs from remote") % f)
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60
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61 def workingmanifest(repo, man, status):
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62 """
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63 Update manifest to correspond to the working directory
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64 """
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65
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66 copied = repo.dirstate.copies()
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67 modified, added, removed, deleted, unknown = status[:5]
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68 for i,l in (("a", added), ("m", modified), ("u", unknown)):
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69 for f in l:
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70 man[f] = man.get(copied.get(f, f), nullid) + i
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71 man.set(f, util.is_exec(repo.wjoin(f), man.execf(f)))
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72
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73 for f in deleted + removed:
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74 del man[f]
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75
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76 return man
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77
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78 def forgetremoved(m2, status):
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79 """
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80 Forget removed files
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81
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82 If we're jumping between revisions (as opposed to merging), and if
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83 neither the working directory nor the target rev has the file,
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84 then we need to remove it from the dirstate, to prevent the
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85 dirstate from listing the file when it is no longer in the
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86 manifest.
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87 """
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88
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89 modified, added, removed, deleted, unknown = status[:5]
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90 action = []
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91
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92 for f in deleted + 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 # 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:
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152 copy[c.path()] = f2
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153 copy[f2] = c.path()
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154
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155 for f in u1:
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Matt Mackall <mpm@selenic.com>
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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parents: 3121
diff changeset
158 if of in m2:
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parents: 3121
diff changeset
159 checkpair(c, of, m2)
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parents: 3121
diff changeset
160 else:
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parents: 3121
diff changeset
161 match.setdefault(of, []).append(f)
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parents: 3121
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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parents: 3121
diff changeset
164 c = ctx(f, m2[f])
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parents: 3121
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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parents: 3121
diff changeset
168 elif of in match:
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Matt Mackall <mpm@selenic.com>
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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parents: 3121
diff changeset
171
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parents: 3121
diff changeset
172 return copy
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parents: 3121
diff changeset
173
3162
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parents: 3161
diff changeset
174 def filtermanifest(man, partial):
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parents: 3161
diff changeset
175 if partial:
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Matt Mackall <mpm@selenic.com>
parents: 3161
diff changeset
176 for k in man.keys():
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Matt Mackall <mpm@selenic.com>
parents: 3161
diff changeset
177 if not partial(k): del man[k]
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parents: 3161
diff changeset
178
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parents: 3161
diff changeset
179 def manifestmerge(ui, m1, m2, ma, overwrite, backwards):
3105
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parents: 3104
diff changeset
180 """
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parents: 3104
diff changeset
181 Merge manifest m1 with m2 using ancestor ma and generate merge action list
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parents: 3104
diff changeset
182 """
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parents: 3104
diff changeset
183
3118
5644a05a608c merge: simplify exec flag handling
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parents: 3117
diff changeset
184 def fmerge(f):
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parents: 3117
diff changeset
185 """merge executable flags"""
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parents: 3117
diff changeset
186 a, b, c = ma.execf(f), m1.execf(f), m2.execf(f)
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parents: 3117
diff changeset
187 return ((a^b) | (a^c)) ^ a
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parents: 3117
diff changeset
188
3105
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diff changeset
189 action = []
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parents: 3104
diff changeset
190
3121
2ef0b3aae186 merge: simplify actions with helper function
Matt Mackall <mpm@selenic.com>
parents: 3120
diff changeset
191 def act(msg, f, m, *args):
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parents: 3120
diff changeset
192 ui.debug(" %s: %s -> %s\n" % (f, msg, m))
2ef0b3aae186 merge: simplify actions with helper function
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parents: 3120
diff changeset
193 action.append((f, m) + args)
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parents: 3120
diff changeset
194
3105
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diff changeset
195 # Compare manifests
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parents: 3104
diff changeset
196 for f, n in m1.iteritems():
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parents: 3104
diff changeset
197 if f in m2:
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parents: 3104
diff changeset
198 # are files different?
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parents: 3104
diff changeset
199 if n != m2[f]:
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Matt Mackall <mpm@selenic.com>
parents: 3104
diff changeset
200 a = ma.get(f, nullid)
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parents: 3104
diff changeset
201 # are both different from the ancestor?
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parents: 3104
diff changeset
202 if not overwrite and n != a and m2[f] != a:
3121
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parents: 3120
diff changeset
203 act("versions differ", f, "m", fmerge(f), n[:20], m2[f])
3105
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parents: 3104
diff changeset
204 # are we clobbering?
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parents: 3104
diff changeset
205 # is remote's version newer?
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parents: 3104
diff changeset
206 # or are we going back in time and clean?
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parents: 3104
diff changeset
207 elif overwrite or m2[f] != a or (backwards and not n[20:]):
3121
2ef0b3aae186 merge: simplify actions with helper function
Matt Mackall <mpm@selenic.com>
parents: 3120
diff changeset
208 act("remote is newer", f, "g", m2.execf(f), m2[f])
3113
d1d1cd5b9484 merge: eliminate confusing queued variable
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parents: 3112
diff changeset
209 # local is newer, not overwrite, check mode bits
3118
5644a05a608c merge: simplify exec flag handling
Matt Mackall <mpm@selenic.com>
parents: 3117
diff changeset
210 elif fmerge(f) != m1.execf(f):
3121
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Matt Mackall <mpm@selenic.com>
parents: 3120
diff changeset
211 act("update permissions", f, "e", m2.execf(f))
3113
d1d1cd5b9484 merge: eliminate confusing queued variable
Matt Mackall <mpm@selenic.com>
parents: 3112
diff changeset
212 # contents same, check mode bits
d1d1cd5b9484 merge: eliminate confusing queued variable
Matt Mackall <mpm@selenic.com>
parents: 3112
diff changeset
213 elif m1.execf(f) != m2.execf(f):
3120
1c1e59aac82a merge: simplify local created logic
Matt Mackall <mpm@selenic.com>
parents: 3119
diff changeset
214 if overwrite or fmerge(f) != m1.execf(f):
3121
2ef0b3aae186 merge: simplify actions with helper function
Matt Mackall <mpm@selenic.com>
parents: 3120
diff changeset
215 act("update permissions", f, "e", m2.execf(f))
3105
7c7469d41ade merge: pull manifest comparison out into separate function
Matt Mackall <mpm@selenic.com>
parents: 3104
diff changeset
216 del m2[f]
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Matt Mackall <mpm@selenic.com>
parents: 3104
diff changeset
217 elif f in ma:
3117
7a635ef25132 merge: simplify tests for local changed/remote deleted
Matt Mackall <mpm@selenic.com>
parents: 3116
diff changeset
218 if n != ma[f] and not overwrite:
3119
b1de36a4b4df merge: simplify prompt code
Matt Mackall <mpm@selenic.com>
parents: 3118
diff changeset
219 if ui.prompt(
3117
7a635ef25132 merge: simplify tests for local changed/remote deleted
Matt Mackall <mpm@selenic.com>
parents: 3116
diff changeset
220 (_(" local changed %s which remote deleted\n") % f) +
3119
b1de36a4b4df merge: simplify prompt code
Matt Mackall <mpm@selenic.com>
parents: 3118
diff changeset
221 _("(k)eep or (d)elete?"), _("[kd]"), _("k")) == _("d"):
3121
2ef0b3aae186 merge: simplify actions with helper function
Matt Mackall <mpm@selenic.com>
parents: 3120
diff changeset
222 act("prompt delete", f, "r")
3105
7c7469d41ade merge: pull manifest comparison out into separate function
Matt Mackall <mpm@selenic.com>
parents: 3104
diff changeset
223 else:
3121
2ef0b3aae186 merge: simplify actions with helper function
Matt Mackall <mpm@selenic.com>
parents: 3120
diff changeset
224 act("other deleted", f, "r")
3105
7c7469d41ade merge: pull manifest comparison out into separate function
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parents: 3104
diff changeset
225 else:
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Matt Mackall <mpm@selenic.com>
parents: 3104
diff changeset
226 # 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
227 if (overwrite and n[20:] != "u") or (backwards and not n[20:]):
3121
2ef0b3aae186 merge: simplify actions with helper function
Matt Mackall <mpm@selenic.com>
parents: 3120
diff changeset
228 act("remote deleted", f, "r")
3105
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parents: 3104
diff changeset
229
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Matt Mackall <mpm@selenic.com>
parents: 3104
diff changeset
230 for f, n in m2.iteritems():
3115
bb74f809bc95 merge: reorder tests on m2 items in manifestmerge
Matt Mackall <mpm@selenic.com>
parents: 3114
diff changeset
231 if f in ma:
3116
920f54a2249e merge: more simplification of m2 manifest scanning
Matt Mackall <mpm@selenic.com>
parents: 3115
diff changeset
232 if overwrite or backwards:
3121
2ef0b3aae186 merge: simplify actions with helper function
Matt Mackall <mpm@selenic.com>
parents: 3120
diff changeset
233 act("recreating", f, "g", m2.execf(f), n)
3116
920f54a2249e merge: more simplification of m2 manifest scanning
Matt Mackall <mpm@selenic.com>
parents: 3115
diff changeset
234 elif n != ma[f]:
3119
b1de36a4b4df merge: simplify prompt code
Matt Mackall <mpm@selenic.com>
parents: 3118
diff changeset
235 if ui.prompt(
3116
920f54a2249e merge: more simplification of m2 manifest scanning
Matt Mackall <mpm@selenic.com>
parents: 3115
diff changeset
236 (_("remote changed %s which local deleted\n") % f) +
3119
b1de36a4b4df merge: simplify prompt code
Matt Mackall <mpm@selenic.com>
parents: 3118
diff changeset
237 _("(k)eep or (d)elete?"), _("[kd]"), _("k")) == _("k"):
3121
2ef0b3aae186 merge: simplify actions with helper function
Matt Mackall <mpm@selenic.com>
parents: 3120
diff changeset
238 act("prompt recreating", f, "g", m2.execf(f), n)
3115
bb74f809bc95 merge: reorder tests on m2 items in manifestmerge
Matt Mackall <mpm@selenic.com>
parents: 3114
diff changeset
239 else:
3121
2ef0b3aae186 merge: simplify actions with helper function
Matt Mackall <mpm@selenic.com>
parents: 3120
diff changeset
240 act("remote created", f, "g", m2.execf(f), n)
3105
7c7469d41ade merge: pull manifest comparison out into separate function
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parents: 3104
diff changeset
241
7c7469d41ade merge: pull manifest comparison out into separate function
Matt Mackall <mpm@selenic.com>
parents: 3104
diff changeset
242 return action
7c7469d41ade merge: pull manifest comparison out into separate function
Matt Mackall <mpm@selenic.com>
parents: 3104
diff changeset
243
3111
5cc62d99b785 merge: move apply and dirstate code into separate functions
Matt Mackall <mpm@selenic.com>
parents: 3110
diff changeset
244 def applyupdates(repo, action, xp1, xp2):
5cc62d99b785 merge: move apply and dirstate code into separate functions
Matt Mackall <mpm@selenic.com>
parents: 3110
diff changeset
245 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
246 action.sort()
5cc62d99b785 merge: move apply and dirstate code into separate functions
Matt Mackall <mpm@selenic.com>
parents: 3110
diff changeset
247 for a in action:
5cc62d99b785 merge: move apply and dirstate code into separate functions
Matt Mackall <mpm@selenic.com>
parents: 3110
diff changeset
248 f, m = a[:2]
5cc62d99b785 merge: move apply and dirstate code into separate functions
Matt Mackall <mpm@selenic.com>
parents: 3110
diff changeset
249 if f[0] == "/":
5cc62d99b785 merge: move apply and dirstate code into separate functions
Matt Mackall <mpm@selenic.com>
parents: 3110
diff changeset
250 continue
5cc62d99b785 merge: move apply and dirstate code into separate functions
Matt Mackall <mpm@selenic.com>
parents: 3110
diff changeset
251 if m == "r": # remove
5cc62d99b785 merge: move apply and dirstate code into separate functions
Matt Mackall <mpm@selenic.com>
parents: 3110
diff changeset
252 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
253 util.audit_path(f)
5cc62d99b785 merge: move apply and dirstate code into separate functions
Matt Mackall <mpm@selenic.com>
parents: 3110
diff changeset
254 try:
5cc62d99b785 merge: move apply and dirstate code into separate functions
Matt Mackall <mpm@selenic.com>
parents: 3110
diff changeset
255 util.unlink(repo.wjoin(f))
5cc62d99b785 merge: move apply and dirstate code into separate functions
Matt Mackall <mpm@selenic.com>
parents: 3110
diff changeset
256 except OSError, inst:
5cc62d99b785 merge: move apply and dirstate code into separate functions
Matt Mackall <mpm@selenic.com>
parents: 3110
diff changeset
257 if inst.errno != errno.ENOENT:
5cc62d99b785 merge: move apply and dirstate code into separate functions
Matt Mackall <mpm@selenic.com>
parents: 3110
diff changeset
258 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
259 (f, inst.strerror))
5cc62d99b785 merge: move apply and dirstate code into separate functions
Matt Mackall <mpm@selenic.com>
parents: 3110
diff changeset
260 removed +=1
5cc62d99b785 merge: move apply and dirstate code into separate functions
Matt Mackall <mpm@selenic.com>
parents: 3110
diff changeset
261 elif m == "m": # merge
5cc62d99b785 merge: move apply and dirstate code into separate functions
Matt Mackall <mpm@selenic.com>
parents: 3110
diff changeset
262 flag, my, other = a[2:]
5cc62d99b785 merge: move apply and dirstate code into separate functions
Matt Mackall <mpm@selenic.com>
parents: 3110
diff changeset
263 repo.ui.status(_("merging %s\n") % f)
5cc62d99b785 merge: move apply and dirstate code into separate functions
Matt Mackall <mpm@selenic.com>
parents: 3110
diff changeset
264 if merge3(repo, f, my, other, xp1, xp2):
5cc62d99b785 merge: move apply and dirstate code into separate functions
Matt Mackall <mpm@selenic.com>
parents: 3110
diff changeset
265 unresolved += 1
5cc62d99b785 merge: move apply and dirstate code into separate functions
Matt Mackall <mpm@selenic.com>
parents: 3110
diff changeset
266 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
267 merged += 1
5cc62d99b785 merge: move apply and dirstate code into separate functions
Matt Mackall <mpm@selenic.com>
parents: 3110
diff changeset
268 elif m == "g": # get
5cc62d99b785 merge: move apply and dirstate code into separate functions
Matt Mackall <mpm@selenic.com>
parents: 3110
diff changeset
269 flag, node = a[2:]
5cc62d99b785 merge: move apply and dirstate code into separate functions
Matt Mackall <mpm@selenic.com>
parents: 3110
diff changeset
270 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
271 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
272 repo.wwrite(f, t)
5cc62d99b785 merge: move apply and dirstate code into separate functions
Matt Mackall <mpm@selenic.com>
parents: 3110
diff changeset
273 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
274 updated += 1
5cc62d99b785 merge: move apply and dirstate code into separate functions
Matt Mackall <mpm@selenic.com>
parents: 3110
diff changeset
275 elif m == "e": # exec
5cc62d99b785 merge: move apply and dirstate code into separate functions
Matt Mackall <mpm@selenic.com>
parents: 3110
diff changeset
276 flag = a[2:]
5cc62d99b785 merge: move apply and dirstate code into separate functions
Matt Mackall <mpm@selenic.com>
parents: 3110
diff changeset
277 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
278
5cc62d99b785 merge: move apply and dirstate code into separate functions
Matt Mackall <mpm@selenic.com>
parents: 3110
diff changeset
279 return updated, merged, removed, unresolved
5cc62d99b785 merge: move apply and dirstate code into separate functions
Matt Mackall <mpm@selenic.com>
parents: 3110
diff changeset
280
5cc62d99b785 merge: move apply and dirstate code into separate functions
Matt Mackall <mpm@selenic.com>
parents: 3110
diff changeset
281 def recordupdates(repo, action, branchmerge):
5cc62d99b785 merge: move apply and dirstate code into separate functions
Matt Mackall <mpm@selenic.com>
parents: 3110
diff changeset
282 for a in action:
5cc62d99b785 merge: move apply and dirstate code into separate functions
Matt Mackall <mpm@selenic.com>
parents: 3110
diff changeset
283 f, m = a[:2]
5cc62d99b785 merge: move apply and dirstate code into separate functions
Matt Mackall <mpm@selenic.com>
parents: 3110
diff changeset
284 if m == "r": # remove
5cc62d99b785 merge: move apply and dirstate code into separate functions
Matt Mackall <mpm@selenic.com>
parents: 3110
diff changeset
285 if branchmerge:
5cc62d99b785 merge: move apply and dirstate code into separate functions
Matt Mackall <mpm@selenic.com>
parents: 3110
diff changeset
286 repo.dirstate.update([f], 'r')
5cc62d99b785 merge: move apply and dirstate code into separate functions
Matt Mackall <mpm@selenic.com>
parents: 3110
diff changeset
287 else:
5cc62d99b785 merge: move apply and dirstate code into separate functions
Matt Mackall <mpm@selenic.com>
parents: 3110
diff changeset
288 repo.dirstate.forget([f])
5cc62d99b785 merge: move apply and dirstate code into separate functions
Matt Mackall <mpm@selenic.com>
parents: 3110
diff changeset
289 elif m == "f": # forget
5cc62d99b785 merge: move apply and dirstate code into separate functions
Matt Mackall <mpm@selenic.com>
parents: 3110
diff changeset
290 repo.dirstate.forget([f])
5cc62d99b785 merge: move apply and dirstate code into separate functions
Matt Mackall <mpm@selenic.com>
parents: 3110
diff changeset
291 elif m == "g": # get
5cc62d99b785 merge: move apply and dirstate code into separate functions
Matt Mackall <mpm@selenic.com>
parents: 3110
diff changeset
292 if branchmerge:
5cc62d99b785 merge: move apply and dirstate code into separate functions
Matt Mackall <mpm@selenic.com>
parents: 3110
diff changeset
293 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
294 else:
5cc62d99b785 merge: move apply and dirstate code into separate functions
Matt Mackall <mpm@selenic.com>
parents: 3110
diff changeset
295 repo.dirstate.update([f], 'n')
5cc62d99b785 merge: move apply and dirstate code into separate functions
Matt Mackall <mpm@selenic.com>
parents: 3110
diff changeset
296 elif m == "m": # merge
5cc62d99b785 merge: move apply and dirstate code into separate functions
Matt Mackall <mpm@selenic.com>
parents: 3110
diff changeset
297 flag, my, other = a[2:]
5cc62d99b785 merge: move apply and dirstate code into separate functions
Matt Mackall <mpm@selenic.com>
parents: 3110
diff changeset
298 if branchmerge:
5cc62d99b785 merge: move apply and dirstate code into separate functions
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299 # We've done a branch merge, mark this file as merged
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300 # so that we properly record the merger later
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301 repo.dirstate.update([f], 'm')
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302 else:
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303 # We've update-merged a locally modified file, so
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304 # we set the dirstate to emulate a normal checkout
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305 # of that file some time in the past. Thus our
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306 # merge will appear as a normal local file
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307 # modification.
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308 fl = repo.file(f)
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309 f_len = fl.size(fl.rev(other))
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310 repo.dirstate.update([f], 'n', st_size=f_len, st_mtime=-1)
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311
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312 def update(repo, node, branchmerge=False, force=False, partial=None,
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313 wlock=None, show_stats=True, remind=True):
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314
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315 overwrite = force and not branchmerge
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316 forcemerge = force and branchmerge
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317
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318 if not wlock:
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319 wlock = repo.wlock()
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320
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321 ### check phase
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322
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323 pl = repo.dirstate.parents()
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324 if not overwrite and pl[1] != nullid:
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325 raise util.Abort(_("outstanding uncommitted merges"))
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326
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327 p1, p2 = pl[0], node
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328 pa = repo.changelog.ancestor(p1, p2)
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329
2968
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330 # are we going backwards?
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331 backwards = (pa == p2)
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332
2814
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333 # is there a linear path from p1 to p2?
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334 if pa == p1 or pa == p2:
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335 if branchmerge:
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336 raise util.Abort(_("there is nothing to merge, just use "
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337 "'hg update' or look at 'hg heads'"))
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338 elif not (overwrite or branchmerge):
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339 raise util.Abort(_("update spans branches, use 'hg merge' "
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340 "or 'hg update -C' to lose changes"))
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341
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342 status = repo.status()
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343 modified, added, removed, deleted, unknown = status[:5]
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344 if branchmerge and not forcemerge:
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345 if modified or added or removed:
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346 raise util.Abort(_("outstanding uncommitted changes"))
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347
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348 m1 = repo.changectx(p1).manifest().copy()
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349 m2 = repo.changectx(p2).manifest().copy()
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350 ma = repo.changectx(pa).manifest()
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351
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352 # resolve the manifest to determine which files
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353 # we care about merging
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354 repo.ui.note(_("resolving manifests\n"))
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355 repo.ui.debug(_(" overwrite %s branchmerge %s partial %s\n") %
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356 (overwrite, branchmerge, bool(partial)))
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357 repo.ui.debug(_(" ancestor %s local %s remote %s\n") %
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358 (short(p1), short(p2), short(pa)))
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359
3100
87ea5a71f7b9 merge: convert actions to list
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diff changeset
360 action = []
3155
56c59ba7aa76 findcopies: use dirstate rename information
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diff changeset
361 copy = {}
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diff changeset
362
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diff changeset
363 m1 = workingmanifest(repo, m1, status)
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diff changeset
364 filtermanifest(m1, partial)
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diff changeset
365 filtermanifest(m2, partial)
2775
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366
3107
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367 if not force:
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diff changeset
368 checkunknown(repo, m2, status)
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369 if not branchmerge:
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diff changeset
370 action += forgetremoved(m2, status)
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84561ea8711e merge: move findcopies after workingmanifest
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diff changeset
371 if not (backwards or overwrite):
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diff changeset
372 copy = findcopies(repo, m1, m2, repo.changelog.rev(pa))
3153
c82ea81d6850 Add core copy detection algorithm
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diff changeset
373
3162
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diff changeset
374 action += manifestmerge(repo.ui, m1, m2, ma, overwrite, backwards)
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31011730f9bd merge: eliminate mw manifestdict, do everything with m1
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diff changeset
375 del m1, m2, ma
2775
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376
2897
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diff changeset
377 ### apply phase
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diff changeset
378
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diff changeset
379 if not branchmerge:
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diff changeset
380 # we don't need to do any magic, just jump to the new rev
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diff changeset
381 p1, p2 = p2, nullid
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diff changeset
382
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diff changeset
383 xp1, xp2 = hex(p1), hex(p2)
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diff changeset
384 if p2 == nullid: xp2 = ''
2775
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diff changeset
385
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diff changeset
386 repo.hook('preupdate', throw=True, parent1=xp1, parent2=xp2)
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diff changeset
387
3111
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diff changeset
388 updated, merged, removed, unresolved = applyupdates(repo, action, xp1, xp2)
2899
8743188f4d2e merge: consolidate dirstate updates
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parents: 2898
diff changeset
389
8743188f4d2e merge: consolidate dirstate updates
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diff changeset
390 # update dirstate
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diff changeset
391 if not partial:
8743188f4d2e merge: consolidate dirstate updates
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diff changeset
392 repo.dirstate.setparents(p1, p2)
3111
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diff changeset
393 recordupdates(repo, action, branchmerge)
2775
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diff changeset
394
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parents:
diff changeset
395 if show_stats:
2977
87a0332ab58b merge: combine merge and get lists
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diff changeset
396 stats = ((updated, _("updated")),
2980
54d85098fb82 merge: make unresolved a counter
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diff changeset
397 (merged - unresolved, _("merged")),
2978
962b9c7df641 merge: add remove to the action hash
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diff changeset
398 (removed, _("removed")),
2980
54d85098fb82 merge: make unresolved a counter
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diff changeset
399 (unresolved, _("unresolved")))
2775
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diff changeset
400 note = ", ".join([_("%d files %s") % s for s in stats])
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parents:
diff changeset
401 repo.ui.status("%s\n" % note)
2811
1ea086bc2086 Merge: combine choose and moddirstate to partial
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diff changeset
402 if not partial:
2810
ca06d35af65e Rename merge.allow -> merge.branchmerge
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parents: 2803
diff changeset
403 if branchmerge:
2813
56f99f5aab34 Merge: refactor err and failedmerge -> unresolved
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parents: 2812
diff changeset
404 if unresolved:
2775
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parents:
diff changeset
405 repo.ui.status(_("There are unresolved merges,"
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parents:
diff changeset
406 " you can redo the full merge using:\n"
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parents:
diff changeset
407 " hg update -C %s\n"
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parents:
diff changeset
408 " hg merge %s\n"
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parents:
diff changeset
409 % (repo.changelog.rev(p1),
b550cd82f92a Move merge code to its own module
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parents:
diff changeset
410 repo.changelog.rev(p2))))
2803
987c31e2a08c Merge with crew
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diff changeset
411 elif remind:
2775
b550cd82f92a Move merge code to its own module
Matt Mackall <mpm@selenic.com>
parents:
diff changeset
412 repo.ui.status(_("(branch merge, don't forget to commit)\n"))
2813
56f99f5aab34 Merge: refactor err and failedmerge -> unresolved
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diff changeset
413 elif unresolved:
2775
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parents:
diff changeset
414 repo.ui.status(_("There are unresolved merges with"
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parents:
diff changeset
415 " locally modified files.\n"))
b550cd82f92a Move merge code to its own module
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parents:
diff changeset
416
3109
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diff changeset
417 repo.hook('update', parent1=xp1, parent2=xp2, error=unresolved)
2980
54d85098fb82 merge: make unresolved a counter
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diff changeset
418 return unresolved
2775
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parents:
diff changeset
419