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comparison mercurial/merge.py @ 4416:bb1800a7d7e1

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merge: fix spurious merges for copies in linear updates We make better use of contexts to accurately identify copies that don't need merges. Add a simple test and update other tests.
author Matt Mackall <mpm@selenic.com>
date Tue, 08 May 2007 02:59:13 -0500
parents 84cd52b48f94
children 0912d8df5e19
comparison
equal deleted inserted replaced
4415:1a63b44f90c9 4416:bb1800a7d7e1
6 # of the GNU General Public License, incorporated herein by reference. 6 # of the GNU General Public License, incorporated herein by reference.
7 7
8 from node import * 8 from node import *
9 from i18n import gettext as _ 9 from i18n import gettext as _
10 from demandload import * 10 from demandload import *
11 demandload(globals(), "errno util os tempfile") 11 demandload(globals(), "errno util os tempfile context")
12 12
13 def filemerge(repo, fw, fo, wctx, mctx): 13 def filemerge(repo, fw, fo, wctx, mctx):
14 """perform a 3-way merge in the working directory 14 """perform a 3-way merge in the working directory
15 15
16 fw = filename in the working directory 16 fw = filename in the working directory
120 f = dirname(f) 120 f = dirname(f)
121 while f not in d: 121 while f not in d:
122 d[f] = True 122 d[f] = True
123 f = dirname(f) 123 f = dirname(f)
124 return d 124 return d
125
126 wctx = repo.workingctx()
127
128 def makectx(f, n):
129 if len(n) == 20:
130 return repo.filectx(f, fileid=n)
131 return wctx.filectx(f)
132 ctx = util.cachefunc(makectx)
125 133
126 def findold(fctx): 134 def findold(fctx):
127 "find files that path was copied from, back to linkrev limit" 135 "find files that path was copied from, back to linkrev limit"
128 old = {} 136 old = {}
129 seen = {} 137 seen = {}
158 if not ca: # unrelated? 166 if not ca: # unrelated?
159 continue 167 continue
160 # named changed on only one side? 168 # named changed on only one side?
161 if ca.path() == c.path() or ca.path() == c2.path(): 169 if ca.path() == c.path() or ca.path() == c2.path():
162 fullcopy[c.path()] = of # remember for dir rename detection 170 fullcopy[c.path()] = of # remember for dir rename detection
163 if c == c2: # no merge needed, ignore copy 171 if c == ca or c2 == ca: # no merge needed, ignore copy
164 continue 172 continue
165 copy[c.path()] = of 173 copy[c.path()] = of
166 174
167 if not repo.ui.configbool("merge", "followcopies", True): 175 if not repo.ui.configbool("merge", "followcopies", True):
168 return {} 176 return {}
169 177
170 # avoid silly behavior for update from empty dir 178 # avoid silly behavior for update from empty dir
171 if not m1 or not m2 or not ma: 179 if not m1 or not m2 or not ma:
172 return {} 180 return {}
173 181
174 dcopies = repo.dirstate.copies()
175 u1 = nonoverlap(m1, m2, ma) 182 u1 = nonoverlap(m1, m2, ma)
176 u2 = nonoverlap(m2, m1, ma) 183 u2 = nonoverlap(m2, m1, ma)
177 ctx = util.cachefunc(lambda f, n: repo.filectx(f, fileid=n[:20]))
178 184
179 for f in u1: 185 for f in u1:
180 checkcopies(ctx(dcopies.get(f, f), m1[f]), m2) 186 checkcopies(ctx(f, m1[f]), m2)
181 187
182 for f in u2: 188 for f in u2:
183 checkcopies(ctx(f, m2[f]), m1) 189 checkcopies(ctx(f, m2[f]), m1)
184 190
185 if not fullcopy or not repo.ui.configbool("merge", "followdirs", True): 191 if not fullcopy or not repo.ui.configbool("merge", "followdirs", True):