##// END OF EJS Templates
filemerge: fix path to working file when fixeol is enabled
Lee Cantey -
r6015:26ef792f default
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@@ -1,203 +1,203 b''
1 1 # filemerge.py - file-level merge handling for Mercurial
2 2 #
3 3 # Copyright 2006, 2007, 2008 Matt Mackall <mpm@selenic.com>
4 4 #
5 5 # This software may be used and distributed according to the terms
6 6 # of the GNU General Public License, incorporated herein by reference.
7 7
8 8 from node import *
9 9 from i18n import _
10 10 import util, os, tempfile, context, simplemerge, re
11 11
12 12 def _toolstr(ui, tool, part, default=""):
13 13 return ui.config("merge-tools", tool + "." + part, default)
14 14
15 15 def _toolbool(ui, tool, part, default=False):
16 16 return ui.configbool("merge-tools", tool + "." + part, default)
17 17
18 18 def _findtool(ui, tool):
19 19 k = _toolstr(ui, tool, "regkey")
20 20 if k:
21 21 p = util.lookup_reg(k, _toolstr(ui, tool, "regname"))
22 22 if p:
23 23 p = util.find_exe(p + _toolstr(ui, tool, "regappend"))
24 24 if p:
25 25 return p
26 26 return util.find_exe(_toolstr(ui, tool, "executable", tool))
27 27
28 28 def _picktool(repo, ui, path, binary, symlink):
29 29 def check(tool, pat, symlink, binary):
30 30 tmsg = tool
31 31 if pat:
32 32 tmsg += " specified for " + pat
33 33 if pat and not _findtool(ui, tool): # skip search if not matching
34 34 ui.warn(_("couldn't find merge tool %s\n") % tmsg)
35 35 elif symlink and not _toolbool(ui, tool, "symlink"):
36 36 ui.warn(_("tool %s can't handle symlinks\n") % tmsg)
37 37 elif binary and not _toolbool(ui, tool, "binary"):
38 38 ui.warn(_("tool %s can't handle binary\n") % tmsg)
39 39 elif not util.gui() and _toolbool(ui, tool, "gui"):
40 40 ui.warn(_("tool %s requires a GUI\n") % tmsg)
41 41 else:
42 42 return True
43 43 return False
44 44
45 45 # HGMERGE takes precedence
46 46 if os.environ.get("HGMERGE"):
47 47 return os.environ.get("HGMERGE")
48 48
49 49 # then patterns
50 50 for pattern, tool in ui.configitems("merge-patterns"):
51 51 mf = util.matcher(repo.root, "", [pat], [], [])[1]
52 52 if mf(path) and check(tool, pat, symlink, False):
53 53 return tool
54 54
55 55 # then merge tools
56 56 tools = {}
57 57 for k,v in ui.configitems("merge-tools"):
58 58 t = k.split('.')[0]
59 59 if t not in tools:
60 60 tools[t] = int(_toolstr(ui, t, "priority", "0"))
61 61 tools = [(-p,t) for t,p in tools.items()]
62 62 tools.sort()
63 63 if ui.config("ui", "merge"):
64 64 tools.insert(0, (None, ui.config("ui", "merge"))) # highest priority
65 65 tools.append((None, "hgmerge")) # the old default, if found
66 66 tools.append((None, "internal:merge")) # internal merge as last resort
67 67 for p,t in tools:
68 68 if _findtool(ui, t) and check(t, None, symlink, binary):
69 69 return t
70 70
71 71 def _eoltype(data):
72 72 "Guess the EOL type of a file"
73 73 if '\0' in data: # binary
74 74 return None
75 75 if '\r\n' in data: # Windows
76 76 return '\r\n'
77 77 if '\r' in data: # Old Mac
78 78 return '\r'
79 79 if '\n' in data: # UNIX
80 80 return '\n'
81 81 return None # unknown
82 82
83 83 def _matcheol(file, origfile):
84 84 "Convert EOL markers in a file to match origfile"
85 85 tostyle = _eoltype(open(origfile, "rb").read())
86 86 if tostyle:
87 87 data = open(file, "rb").read()
88 88 style = _eoltype(data)
89 89 if style:
90 90 newdata = data.replace(style, tostyle)
91 91 if newdata != data:
92 92 open(file, "wb").write(newdata)
93 93
94 94 def filemerge(repo, fw, fd, fo, wctx, mctx):
95 95 """perform a 3-way merge in the working directory
96 96
97 97 fw = original filename in the working directory
98 98 fd = destination filename in the working directory
99 99 fo = filename in other parent
100 100 wctx, mctx = working and merge changecontexts
101 101 """
102 102
103 103 def temp(prefix, ctx):
104 104 pre = "%s~%s." % (os.path.basename(ctx.path()), prefix)
105 105 (fd, name) = tempfile.mkstemp(prefix=pre)
106 106 data = repo.wwritedata(ctx.path(), ctx.data())
107 107 f = os.fdopen(fd, "wb")
108 108 f.write(data)
109 109 f.close()
110 110 return name
111 111
112 112 def isbin(ctx):
113 113 try:
114 114 return util.binary(ctx.data())
115 115 except IOError:
116 116 return False
117 117
118 118 fco = mctx.filectx(fo)
119 119 if not fco.cmp(wctx.filectx(fd).data()): # files identical?
120 120 return None
121 121
122 122 ui = repo.ui
123 123 fcm = wctx.filectx(fw)
124 124 fca = fcm.ancestor(fco) or repo.filectx(fw, fileid=nullrev)
125 125 binary = isbin(fcm) or isbin(fco) or isbin(fca)
126 126 symlink = fcm.islink() or fco.islink()
127 127 tool = _picktool(repo, ui, fw, binary, symlink)
128 128 ui.debug(_("picked tool '%s' for %s (binary %s symlink %s)\n") %
129 129 (tool, fw, binary, symlink))
130 130
131 131 if not tool:
132 132 tool = "internal:local"
133 133 if ui.prompt(_(" no tool found to merge %s\n"
134 134 "keep (l)ocal or take (o)ther?") % fw,
135 135 _("[lo]"), _("l")) != _("l"):
136 136 tool = "internal:other"
137 137 if tool == "internal:local":
138 138 return 0
139 139 if tool == "internal:other":
140 140 repo.wwrite(fd, fco.data(), fco.fileflags())
141 141 return 0
142 142 if tool == "internal:fail":
143 143 return 1
144 144
145 145 # do the actual merge
146 146 a = repo.wjoin(fd)
147 147 b = temp("base", fca)
148 148 c = temp("other", fco)
149 149 out = ""
150 150 back = a + ".orig"
151 151 util.copyfile(a, back)
152 152
153 153 if fw != fo:
154 154 repo.ui.status(_("merging %s and %s\n") % (fw, fo))
155 155 else:
156 156 repo.ui.status(_("merging %s\n") % fw)
157 157 repo.ui.debug(_("my %s other %s ancestor %s\n") % (fcm, fco, fca))
158 158
159 159 # do we attempt to simplemerge first?
160 160 if _toolbool(ui, tool, "premerge", not (binary or symlink)):
161 161 r = simplemerge.simplemerge(a, b, c, quiet=True)
162 162 if not r:
163 163 ui.debug(_(" premerge successful\n"))
164 164 os.unlink(back)
165 165 os.unlink(b)
166 166 os.unlink(c)
167 167 return 0
168 168 util.copyfile(back, a) # restore from backup and try again
169 169
170 170 env = dict(HG_FILE=fd,
171 171 HG_MY_NODE=str(wctx.parents()[0]),
172 172 HG_OTHER_NODE=str(mctx),
173 173 HG_MY_ISLINK=fcm.islink(),
174 174 HG_OTHER_ISLINK=fco.islink(),
175 175 HG_BASE_ISLINK=fca.islink())
176 176
177 177 if tool == "internal:merge":
178 178 r = simplemerge.simplemerge(a, b, c, label=['local', 'other'])
179 179 else:
180 180 toolpath = _findtool(ui, tool)
181 181 args = _toolstr(ui, tool, "args", '$local $base $other')
182 182 if "$output" in args:
183 183 out, a = a, back # read input from backup, write to original
184 184 replace = dict(local=a, base=b, other=c, output=out)
185 185 args = re.sub("\$(local|base|other|output)",
186 186 lambda x: '"%s"' % replace[x.group()[1:]], args)
187 187 r = util.system(toolpath + ' ' + args, cwd=repo.root, environ=env)
188 188
189 189 if not r and _toolbool(ui, tool, "checkconflicts"):
190 190 if re.match("^(<<<<<<< .*|=======|>>>>>>> .*)$", fcm.data()):
191 191 r = 1
192 192
193 193 if _toolbool(ui, tool, "fixeol"):
194 _matcheol(repo.join(fd), back)
194 _matcheol(repo.wjoin(fd), back)
195 195
196 196 if r:
197 197 repo.ui.warn(_("merging %s failed!\n") % fd)
198 198 else:
199 199 os.unlink(back)
200 200
201 201 os.unlink(b)
202 202 os.unlink(c)
203 203 return r
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