Mercurial > hg-stable
annotate hgext/convert/__init__.py @ 5438:6fa5258be3d4
convert: rename convert_svn to svn_source
author | Bryan O'Sullivan <bos@serpentine.com> |
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date | Wed, 10 Oct 2007 15:30:00 -0700 |
parents | 1d53a75ea0fc |
children | 71e7c86adcb7 |
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1 # convert.py Foreign SCM converter |
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2 # |
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3 # Copyright 2005-2007 Matt Mackall <mpm@selenic.com> |
316 | 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. |
316 | 7 |
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8 from common import NoRepo, SKIPREV, converter_source, converter_sink |
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9 from cvs import convert_cvs |
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10 from darcs import darcs_source |
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11 from git import convert_git |
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12 from hg import mercurial_source, mercurial_sink |
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13 from subversion import svn_source, debugsvnlog |
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14 import filemap |
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15 |
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16 import os, shutil |
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17 from mercurial import hg, ui, util, commands |
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18 from mercurial.i18n import _ |
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19 |
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20 commands.norepo += " convert debugsvnlog" |
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21 |
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22 sink_converters = [mercurial_sink] |
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23 source_converters = [convert_cvs, convert_git, svn_source, |
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24 mercurial_source, darcs_source] |
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25 def convertsource(ui, path, **opts): |
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26 for c in source_converters: |
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27 try: |
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28 return c.getcommit and c(ui, path, **opts) |
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29 except AttributeError: |
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30 pass |
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31 except NoRepo, inst: |
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32 ui.note(_("convert: %s\n") % inst) |
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33 raise util.Abort('%s: unknown repository type' % path) |
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34 |
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35 def convertsink(ui, path): |
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36 if not os.path.isdir(path): |
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37 raise util.Abort("%s: not a directory" % path) |
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38 for c in sink_converters: |
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39 try: |
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40 return c.putcommit and c(ui, path) |
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41 except AttributeError: |
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42 pass |
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43 except NoRepo, inst: |
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44 ui.note(_("convert: %s\n") % inst) |
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45 raise util.Abort('%s: unknown repository type' % path) |
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46 |
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47 class converter(object): |
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48 def __init__(self, ui, source, dest, revmapfile, opts): |
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49 |
316 | 50 self.source = source |
51 self.dest = dest | |
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52 self.ui = ui |
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53 self.opts = opts |
316 | 54 self.commitcache = {} |
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55 self.revmapfile = revmapfile |
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56 self.revmapfilefd = None |
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57 self.authors = {} |
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58 self.authorfile = None |
316 | 59 |
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60 self.maporder = [] |
316 | 61 self.map = {} |
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62 try: |
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63 origrevmapfile = open(self.revmapfile, 'r') |
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64 for l in origrevmapfile: |
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65 sv, dv = l[:-1].split() |
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66 if sv not in self.map: |
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67 self.maporder.append(sv) |
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68 self.map[sv] = dv |
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69 origrevmapfile.close() |
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70 except IOError: |
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71 pass |
316 | 72 |
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73 # Read first the dst author map if any |
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74 authorfile = self.dest.authorfile() |
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75 if authorfile and os.path.exists(authorfile): |
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76 self.readauthormap(authorfile) |
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77 # Extend/Override with new author map if necessary |
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78 if opts.get('authors'): |
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79 self.readauthormap(opts.get('authors')) |
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80 self.authorfile = self.dest.authorfile() |
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81 |
316 | 82 def walktree(self, heads): |
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83 '''Return a mapping that identifies the uncommitted parents of every |
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84 uncommitted changeset.''' |
316 | 85 visit = heads |
86 known = {} | |
87 parents = {} | |
88 while visit: | |
89 n = visit.pop(0) | |
90 if n in known or n in self.map: continue | |
91 known[n] = 1 | |
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92 commit = self.cachecommit(n) |
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93 parents[n] = [] |
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94 for p in commit.parents: |
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95 parents[n].append(p) |
316 | 96 visit.append(p) |
97 | |
98 return parents | |
99 | |
100 def toposort(self, parents): | |
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101 '''Return an ordering such that every uncommitted changeset is |
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102 preceeded by all its uncommitted ancestors.''' |
316 | 103 visit = parents.keys() |
104 seen = {} | |
105 children = {} | |
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106 |
316 | 107 while visit: |
108 n = visit.pop(0) | |
109 if n in seen: continue | |
110 seen[n] = 1 | |
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111 # Ensure that nodes without parents are present in the 'children' |
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112 # mapping. |
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113 children.setdefault(n, []) |
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114 for p in parents[n]: |
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115 if not p in self.map: |
316 | 116 visit.append(p) |
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117 children.setdefault(p, []).append(n) |
316 | 118 |
119 s = [] | |
120 removed = {} | |
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121 visit = children.keys() |
316 | 122 while visit: |
123 n = visit.pop(0) | |
124 if n in removed: continue | |
125 dep = 0 | |
126 if n in parents: | |
127 for p in parents[n]: | |
128 if p in self.map: continue | |
129 if p not in removed: | |
130 # we're still dependent | |
131 visit.append(n) | |
132 dep = 1 | |
133 break | |
134 | |
135 if not dep: | |
136 # all n's parents are in the list | |
137 removed[n] = 1 | |
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138 if n not in self.map: |
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139 s.append(n) |
316 | 140 if n in children: |
141 for c in children[n]: | |
142 visit.insert(0, c) | |
143 | |
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144 if self.opts.get('datesort'): |
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145 depth = {} |
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146 for n in s: |
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147 depth[n] = 0 |
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148 pl = [p for p in self.commitcache[n].parents |
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149 if p not in self.map] |
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150 if pl: |
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151 depth[n] = max([depth[p] for p in pl]) + 1 |
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152 |
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153 s = [(depth[n], self.commitcache[n].date, n) for n in s] |
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154 s.sort() |
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155 s = [e[2] for e in s] |
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156 |
316 | 157 return s |
158 | |
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159 def mapentry(self, src, dst): |
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160 if self.revmapfilefd is None: |
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161 try: |
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162 self.revmapfilefd = open(self.revmapfile, "a") |
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163 except IOError, (errno, strerror): |
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|
164 raise util.Abort("Could not open map file %s: %s, %s\n" % (self.revmapfile, errno, strerror)) |
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165 self.map[src] = dst |
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166 self.revmapfilefd.write("%s %s\n" % (src, dst)) |
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|
167 self.revmapfilefd.flush() |
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168 |
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|
169 def writeauthormap(self): |
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170 authorfile = self.authorfile |
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171 if authorfile: |
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172 self.ui.status('Writing author map file %s\n' % authorfile) |
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173 ofile = open(authorfile, 'w+') |
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174 for author in self.authors: |
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175 ofile.write("%s=%s\n" % (author, self.authors[author])) |
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176 ofile.close() |
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177 |
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178 def readauthormap(self, authorfile): |
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179 afile = open(authorfile, 'r') |
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180 for line in afile: |
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181 try: |
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182 srcauthor = line.split('=')[0].strip() |
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183 dstauthor = line.split('=')[1].strip() |
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184 if srcauthor in self.authors and dstauthor != self.authors[srcauthor]: |
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185 self.ui.status( |
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186 'Overriding mapping for author %s, was %s, will be %s\n' |
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187 % (srcauthor, self.authors[srcauthor], dstauthor)) |
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188 else: |
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189 self.ui.debug('Mapping author %s to %s\n' |
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190 % (srcauthor, dstauthor)) |
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191 self.authors[srcauthor] = dstauthor |
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192 except IndexError: |
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193 self.ui.warn( |
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194 'Ignoring bad line in author file map %s: %s\n' |
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195 % (authorfile, line)) |
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196 afile.close() |
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197 |
5203
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|
198 def cachecommit(self, rev): |
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199 commit = self.source.getcommit(rev) |
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200 commit.author = self.authors.get(commit.author, commit.author) |
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|
201 self.commitcache[rev] = commit |
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202 return commit |
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|
203 |
316 | 204 def copy(self, rev): |
5016
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|
205 commit = self.commitcache[rev] |
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diff
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|
206 do_copies = hasattr(self.dest, 'copyfile') |
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diff
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|
207 filenames = [] |
4957
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4924
diff
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|
208 |
5374
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209 changes = self.source.getchanges(rev) |
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210 if isinstance(changes, basestring): |
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211 if changes == SKIPREV: |
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|
212 dest = SKIPREV |
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213 else: |
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214 dest = self.map[changes] |
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215 self.mapentry(rev, dest) |
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|
216 return |
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changeset
|
217 files, copies = changes |
5173
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diff
changeset
|
218 parents = [self.map[r] for r in commit.parents] |
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changeset
|
219 if commit.parents: |
5204
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changeset
|
220 prev = commit.parents[0] |
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|
221 if prev not in self.commitcache: |
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|
222 self.cachecommit(prev) |
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|
223 pbranch = self.commitcache[prev].branch |
5173
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|
224 else: |
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changeset
|
225 pbranch = None |
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changeset
|
226 self.dest.setbranch(commit.branch, pbranch, parents) |
5121
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changeset
|
227 for f, v in files: |
5375
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|
228 filenames.append(f) |
316 | 229 try: |
230 data = self.source.getfile(f, v) | |
231 except IOError, inst: | |
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|
232 self.dest.delfile(f) |
316 | 233 else: |
3956
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convert-repo: add CVS exec bit support
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3954
diff
changeset
|
234 e = self.source.getmode(f, v) |
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changeset
|
235 self.dest.putfile(f, e, data) |
4765
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changeset
|
236 if do_copies: |
5121
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changeset
|
237 if f in copies: |
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238 copyf = copies[f] |
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239 # Merely marks that a copy happened. |
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240 self.dest.copyfile(copyf, f) |
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|
241 |
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changeset
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242 newnode = self.dest.putcommit(filenames, parents, commit) |
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|
243 self.mapentry(rev, newnode) |
316 | 244 |
245 def convert(self): | |
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|
246 try: |
5356
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5281
diff
changeset
|
247 self.source.before() |
5014
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convert: acquire/release locks periodically
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diff
changeset
|
248 self.dest.before() |
5373
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diff
changeset
|
249 self.source.setrevmap(self.map, self.maporder) |
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250 self.ui.status("scanning source...\n") |
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251 heads = self.source.getheads() |
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252 parents = self.walktree(heads) |
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253 self.ui.status("sorting...\n") |
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254 t = self.toposort(parents) |
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|
255 num = len(t) |
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|
256 c = None |
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|
257 |
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changeset
|
258 self.ui.status("converting...\n") |
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259 for c in t: |
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|
260 num -= 1 |
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|
261 desc = self.commitcache[c].desc |
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|
262 if "\n" in desc: |
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|
263 desc = desc.splitlines()[0] |
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|
264 self.ui.status("%d %s\n" % (num, desc)) |
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changeset
|
265 self.copy(c) |
316 | 266 |
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|
267 tags = self.source.gettags() |
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|
268 ctags = {} |
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|
269 for k in tags: |
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changeset
|
270 v = tags[k] |
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271 if self.map.get(v, SKIPREV) != SKIPREV: |
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|
272 ctags[k] = self.map[v] |
316 | 273 |
4588
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changeset
|
274 if c and ctags: |
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|
275 nrev = self.dest.puttags(ctags) |
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|
276 # write another hash correspondence to override the previous |
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|
277 # one so we don't end up with extra tag heads |
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|
278 if nrev: |
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|
279 self.mapentry(c, nrev) |
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|
280 |
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281 self.writeauthormap() |
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282 finally: |
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283 self.cleanup() |
694 | 284 |
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285 def cleanup(self): |
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286 try: |
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287 self.dest.after() |
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288 finally: |
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289 self.source.after() |
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290 if self.revmapfilefd: |
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291 self.revmapfilefd.close() |
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293 def convert(ui, src, dest=None, revmapfile=None, **opts): |
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294 """Convert a foreign SCM repository to a Mercurial one. |
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295 |
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296 Accepted source formats: |
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297 - CVS |
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298 - Darcs |
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299 - git |
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300 - Subversion |
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301 |
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302 Accepted destination formats: |
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303 - Mercurial |
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304 |
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305 If no revision is given, all revisions will be converted. Otherwise, |
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306 convert will only import up to the named revision (given in a format |
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307 understood by the source). |
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308 |
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309 If no destination directory name is specified, it defaults to the |
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310 basename of the source with '-hg' appended. If the destination |
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311 repository doesn't exist, it will be created. |
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312 |
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313 If <revmapfile> isn't given, it will be put in a default location |
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314 (<dest>/.hg/shamap by default). The <revmapfile> is a simple text |
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315 file that maps each source commit ID to the destination ID for |
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316 that revision, like so: |
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317 <source ID> <destination ID> |
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318 |
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319 If the file doesn't exist, it's automatically created. It's updated |
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320 on each commit copied, so convert-repo can be interrupted and can |
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321 be run repeatedly to copy new commits. |
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322 |
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323 The [username mapping] file is a simple text file that maps each source |
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324 commit author to a destination commit author. It is handy for source SCMs |
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325 that use unix logins to identify authors (eg: CVS). One line per author |
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326 mapping and the line format is: |
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327 srcauthor=whatever string you want |
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328 |
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329 The filemap is a file that allows filtering and remapping of files |
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330 and directories. Comment lines start with '#'. Each line can |
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331 contain one of the following directives: |
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332 |
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333 include path/to/file |
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334 |
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335 exclude path/to/file |
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336 |
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337 rename from/file to/file |
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338 |
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339 The 'include' directive causes a file, or all files under a |
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340 directory, to be included in the destination repository. The |
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341 'exclude' directive causes files or directories to be omitted. |
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342 The 'rename' directive renames a file or directory. To rename |
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343 from a subdirectory into the root of the repository, use '.' as |
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344 the path to rename to. |
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345 """ |
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346 |
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347 util._encoding = 'UTF-8' |
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348 |
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349 if not dest: |
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350 dest = hg.defaultdest(src) + "-hg" |
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351 ui.status("assuming destination %s\n" % dest) |
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352 |
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353 # Try to be smart and initalize things when required |
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354 created = False |
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355 if os.path.isdir(dest): |
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356 if len(os.listdir(dest)) > 0: |
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357 try: |
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358 hg.repository(ui, dest) |
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359 ui.status("destination %s is a Mercurial repository\n" % dest) |
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360 except hg.RepoError: |
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361 raise util.Abort( |
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362 "destination directory %s is not empty.\n" |
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363 "Please specify an empty directory to be initialized\n" |
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364 "or an already initialized mercurial repository" |
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365 % dest) |
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366 else: |
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367 ui.status("initializing destination %s repository\n" % dest) |
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368 hg.repository(ui, dest, create=True) |
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369 created = True |
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370 elif os.path.exists(dest): |
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371 raise util.Abort("destination %s exists and is not a directory" % dest) |
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372 else: |
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373 ui.status("initializing destination %s repository\n" % dest) |
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374 hg.repository(ui, dest, create=True) |
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375 created = True |
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376 |
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377 destc = convertsink(ui, dest) |
316 | 378 |
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379 try: |
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380 srcc = convertsource(ui, src, rev=opts.get('rev')) |
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381 except Exception: |
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382 if created: |
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383 shutil.rmtree(dest, True) |
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384 raise |
316 | 385 |
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386 fmap = opts.get('filemap') |
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387 if fmap: |
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388 srcc = filemap.filemap_source(ui, srcc, fmap) |
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389 destc.setfilemapmode(True) |
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390 |
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391 if not revmapfile: |
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392 try: |
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393 revmapfile = destc.revmapfile() |
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394 except: |
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395 revmapfile = os.path.join(destc, "map") |
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396 |
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397 c = converter(ui, srcc, destc, revmapfile, opts) |
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398 c.convert() |
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399 |
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400 |
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401 cmdtable = { |
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c3a78a49d7f0
Some small cleanups for convert extension:
Thomas Arendsen Hein <thomas@intevation.de>
parents:
4521
diff
changeset
|
402 "convert": |
5281
a176f9c8b26e
convert: rename a class and a function
Alexis S. L. Carvalho <alexis@cecm.usp.br>
parents:
5256
diff
changeset
|
403 (convert, |
4589
451e91ed535e
convert extension: Add support for username mapping
Edouard Gomez <ed.gomez@free.fr>
parents:
4588
diff
changeset
|
404 [('A', 'authors', '', 'username mapping filename'), |
5016
4ebc8693ce72
convert: add filename filtering and renaming support
Bryan O'Sullivan <bos@serpentine.com>
parents:
5014
diff
changeset
|
405 ('', 'filemap', '', 'remap file names using contents of file'), |
4760
07efcce17d28
convert: add -r argument specifying latest revision to convert
Brendan Cully <brendan@kublai.com>
parents:
4719
diff
changeset
|
406 ('r', 'rev', '', 'import up to target revision REV'), |
4589
451e91ed535e
convert extension: Add support for username mapping
Edouard Gomez <ed.gomez@free.fr>
parents:
4588
diff
changeset
|
407 ('', 'datesort', None, 'try to sort changesets by date')], |
4532
c3a78a49d7f0
Some small cleanups for convert extension:
Thomas Arendsen Hein <thomas@intevation.de>
parents:
4521
diff
changeset
|
408 'hg convert [OPTION]... SOURCE [DEST [MAPFILE]]'), |
5138
9cda2315c7a9
convert: Use debugsvnlog instead of git-like debug-svn-log.
Thomas Arendsen Hein <thomas@intevation.de>
parents:
5134
diff
changeset
|
409 "debugsvnlog": |
5127
39b6eaee6fd7
convert: replace fork with subprocess call.
Patrick Mezard <pmezard@gmail.com>
parents:
5121
diff
changeset
|
410 (debugsvnlog, |
39b6eaee6fd7
convert: replace fork with subprocess call.
Patrick Mezard <pmezard@gmail.com>
parents:
5121
diff
changeset
|
411 [], |
5138
9cda2315c7a9
convert: Use debugsvnlog instead of git-like debug-svn-log.
Thomas Arendsen Hein <thomas@intevation.de>
parents:
5134
diff
changeset
|
412 'hg debugsvnlog'), |
4513
ac2fe196ac9b
Turns convert.py into a real extension
Edouard Gomez <ed.gomez@free.fr>
parents:
4512
diff
changeset
|
413 } |
5127
39b6eaee6fd7
convert: replace fork with subprocess call.
Patrick Mezard <pmezard@gmail.com>
parents:
5121
diff
changeset
|
414 |