Mercurial > hg
annotate hgext/convert/convcmd.py @ 6100:49c69e1e4aa2
convert: fix --datesort ordering
Two branches a and b starting at root, with commits interleaved like:
root a0 a1 b0 a2 a3 b1
were converted in the following order:
root a0 b0 a1 b1 a2 a3
Replace depth based toposort with a more classic traversal method.
author | Patrick Mezard <pmezard@gmail.com> |
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date | Sat, 16 Feb 2008 11:55:33 +0100 |
parents | 37cc79a5727a |
children | 516d8ffede7c |
rev | line source |
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1 # convcmd - convert extension commands definition |
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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, util |
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18 from mercurial.i18n import _ |
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19 |
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20 source_converters = [ |
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21 ('cvs', convert_cvs), |
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22 ('git', convert_git), |
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23 ('svn', svn_source), |
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24 ('hg', mercurial_source), |
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25 ('darcs', darcs_source), |
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26 ] |
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27 |
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28 sink_converters = [ |
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29 ('hg', mercurial_sink), |
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30 ] |
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31 |
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32 def convertsource(ui, path, type, rev): |
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33 exceptions = [] |
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34 for name, source in source_converters: |
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35 try: |
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36 if not type or name == type: |
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37 return source(ui, path, rev) |
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38 except NoRepo, inst: |
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39 exceptions.append(inst) |
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40 if not ui.quiet: |
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41 for inst in exceptions: |
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42 ui.write(_("%s\n") % inst) |
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43 raise util.Abort('%s: unknown repository type' % path) |
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44 |
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45 def convertsink(ui, path, type): |
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46 for name, sink in sink_converters: |
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47 try: |
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48 if not type or name == type: |
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49 return sink(ui, path) |
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50 except NoRepo, inst: |
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51 ui.note(_("convert: %s\n") % inst) |
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52 raise util.Abort('%s: unknown repository type' % path) |
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53 |
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54 class converter(object): |
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55 def __init__(self, ui, source, dest, revmapfile, opts): |
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56 |
316 | 57 self.source = source |
58 self.dest = dest | |
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59 self.ui = ui |
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60 self.opts = opts |
316 | 61 self.commitcache = {} |
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62 self.revmapfile = revmapfile |
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63 self.revmapfilefd = None |
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64 self.authors = {} |
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65 self.authorfile = None |
316 | 66 |
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67 self.maporder = [] |
316 | 68 self.map = {} |
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69 try: |
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70 origrevmapfile = open(self.revmapfile, 'r') |
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71 for l in origrevmapfile: |
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72 sv, dv = l[:-1].split() |
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73 if sv not in self.map: |
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74 self.maporder.append(sv) |
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75 self.map[sv] = dv |
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76 origrevmapfile.close() |
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77 except IOError: |
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78 pass |
316 | 79 |
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80 # Read first the dst author map if any |
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81 authorfile = self.dest.authorfile() |
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82 if authorfile and os.path.exists(authorfile): |
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83 self.readauthormap(authorfile) |
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84 # Extend/Override with new author map if necessary |
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85 if opts.get('authors'): |
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86 self.readauthormap(opts.get('authors')) |
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87 self.authorfile = self.dest.authorfile() |
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88 |
316 | 89 def walktree(self, heads): |
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90 '''Return a mapping that identifies the uncommitted parents of every |
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91 uncommitted changeset.''' |
316 | 92 visit = heads |
93 known = {} | |
94 parents = {} | |
95 while visit: | |
96 n = visit.pop(0) | |
97 if n in known or n in self.map: continue | |
98 known[n] = 1 | |
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99 commit = self.cachecommit(n) |
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100 parents[n] = [] |
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101 for p in commit.parents: |
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102 parents[n].append(p) |
316 | 103 visit.append(p) |
104 | |
105 return parents | |
106 | |
107 def toposort(self, parents): | |
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108 '''Return an ordering such that every uncommitted changeset is |
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109 preceeded by all its uncommitted ancestors.''' |
316 | 110 visit = parents.keys() |
111 seen = {} | |
112 children = {} | |
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113 actives = [] |
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114 |
316 | 115 while visit: |
116 n = visit.pop(0) | |
117 if n in seen: continue | |
118 seen[n] = 1 | |
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119 # Ensure that nodes without parents are present in the 'children' |
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120 # mapping. |
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121 children.setdefault(n, []) |
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122 hasparent = False |
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123 for p in parents[n]: |
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124 if not p in self.map: |
316 | 125 visit.append(p) |
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126 hasparent = True |
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127 children.setdefault(p, []).append(n) |
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128 if not hasparent: |
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129 actives.append(n) |
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130 |
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131 del seen |
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132 del visit |
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133 |
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134 if self.opts.get('datesort'): |
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135 dates = {} |
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136 def getdate(n): |
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137 if n not in dates: |
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138 dates[n] = util.parsedate(self.commitcache[n].date) |
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139 return dates[n] |
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140 |
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141 def picknext(nodes): |
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142 return min([(getdate(n), n) for n in nodes])[1] |
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143 else: |
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144 prev = [None] |
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145 def picknext(nodes): |
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146 # Return the first eligible child of the previously converted |
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147 # revision, or any of them. |
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148 next = nodes[0] |
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149 for n in nodes: |
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150 if prev[0] in parents[n]: |
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151 next = n |
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152 break |
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153 prev[0] = next |
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154 return next |
316 | 155 |
156 s = [] | |
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157 pendings = {} |
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158 while actives: |
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159 n = picknext(actives) |
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160 actives.remove(n) |
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161 s.append(n) |
316 | 162 |
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163 # Update dependents list |
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164 for c in children.get(n, []): |
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165 if c not in pendings: |
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166 pendings[c] = [p for p in parents[c] if p not in self.map] |
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167 pendings[c].remove(n) |
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168 if not pendings[c]: |
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169 # Parents are converted, node is eligible |
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170 actives.insert(0, c) |
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171 pendings[c] = None |
316 | 172 |
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173 if len(s) != len(parents): |
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174 raise util.Abort(_("not all revisions were sorted")) |
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175 |
316 | 176 return s |
177 | |
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178 def mapentry(self, src, dst): |
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179 if self.revmapfilefd is None: |
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180 try: |
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181 self.revmapfilefd = open(self.revmapfile, "a") |
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182 except IOError, (errno, strerror): |
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183 raise util.Abort("Could not open map file %s: %s, %s\n" % (self.revmapfile, errno, strerror)) |
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184 self.map[src] = dst |
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185 self.revmapfilefd.write("%s %s\n" % (src, dst)) |
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186 self.revmapfilefd.flush() |
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187 |
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188 def writeauthormap(self): |
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189 authorfile = self.authorfile |
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190 if authorfile: |
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191 self.ui.status('Writing author map file %s\n' % authorfile) |
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192 ofile = open(authorfile, 'w+') |
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193 for author in self.authors: |
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194 ofile.write("%s=%s\n" % (author, self.authors[author])) |
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195 ofile.close() |
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196 |
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197 def readauthormap(self, authorfile): |
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198 afile = open(authorfile, 'r') |
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199 for line in afile: |
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200 try: |
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201 srcauthor = line.split('=')[0].strip() |
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202 dstauthor = line.split('=')[1].strip() |
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203 if srcauthor in self.authors and dstauthor != self.authors[srcauthor]: |
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204 self.ui.status( |
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|
205 'Overriding mapping for author %s, was %s, will be %s\n' |
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|
206 % (srcauthor, self.authors[srcauthor], dstauthor)) |
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207 else: |
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208 self.ui.debug('Mapping author %s to %s\n' |
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|
209 % (srcauthor, dstauthor)) |
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210 self.authors[srcauthor] = dstauthor |
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211 except IndexError: |
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212 self.ui.warn( |
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213 'Ignoring bad line in author file map %s: %s\n' |
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|
214 % (authorfile, line)) |
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|
215 afile.close() |
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|
216 |
5203
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|
217 def cachecommit(self, rev): |
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218 commit = self.source.getcommit(rev) |
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219 commit.author = self.authors.get(commit.author, commit.author) |
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|
220 self.commitcache[rev] = commit |
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221 return commit |
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|
222 |
316 | 223 def copy(self, rev): |
5016
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|
224 commit = self.commitcache[rev] |
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|
225 do_copies = hasattr(self.dest, 'copyfile') |
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changeset
|
226 filenames = [] |
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4924
diff
changeset
|
227 |
5374
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228 changes = self.source.getchanges(rev) |
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229 if isinstance(changes, basestring): |
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|
230 if changes == SKIPREV: |
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|
231 dest = SKIPREV |
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232 else: |
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233 dest = self.map[changes] |
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|
234 self.mapentry(rev, dest) |
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|
235 return |
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changeset
|
236 files, copies = changes |
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|
237 pbranches = [] |
5173
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changeset
|
238 if commit.parents: |
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239 for prev in commit.parents: |
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|
240 if prev not in self.commitcache: |
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241 self.cachecommit(prev) |
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242 pbranches.append((self.map[prev], |
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|
243 self.commitcache[prev].branch)) |
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|
244 self.dest.setbranch(commit.branch, pbranches) |
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changeset
|
245 for f, v in files: |
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|
246 filenames.append(f) |
316 | 247 try: |
248 data = self.source.getfile(f, v) | |
249 except IOError, inst: | |
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|
250 self.dest.delfile(f) |
316 | 251 else: |
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|
252 e = self.source.getmode(f, v) |
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changeset
|
253 self.dest.putfile(f, e, data) |
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254 if do_copies: |
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|
255 if f in copies: |
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256 copyf = copies[f] |
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257 # Merely marks that a copy happened. |
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258 self.dest.copyfile(copyf, f) |
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259 |
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260 parents = [b[0] for b in pbranches] |
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changeset
|
261 newnode = self.dest.putcommit(filenames, parents, commit) |
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262 self.mapentry(rev, newnode) |
316 | 263 |
264 def convert(self): | |
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265 try: |
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266 self.source.before() |
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267 self.dest.before() |
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268 self.source.setrevmap(self.map, self.maporder) |
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269 self.ui.status("scanning source...\n") |
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270 heads = self.source.getheads() |
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271 parents = self.walktree(heads) |
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272 self.ui.status("sorting...\n") |
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273 t = self.toposort(parents) |
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274 num = len(t) |
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275 c = None |
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276 |
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277 self.ui.status("converting...\n") |
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278 for c in t: |
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279 num -= 1 |
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280 desc = self.commitcache[c].desc |
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281 if "\n" in desc: |
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282 desc = desc.splitlines()[0] |
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283 self.ui.status("%d %s\n" % (num, desc)) |
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284 self.copy(c) |
316 | 285 |
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286 tags = self.source.gettags() |
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287 ctags = {} |
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288 for k in tags: |
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289 v = tags[k] |
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290 if self.map.get(v, SKIPREV) != SKIPREV: |
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291 ctags[k] = self.map[v] |
316 | 292 |
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293 if c and ctags: |
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294 nrev = self.dest.puttags(ctags) |
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295 # write another hash correspondence to override the previous |
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296 # one so we don't end up with extra tag heads |
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297 if nrev: |
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298 self.mapentry(c, nrev) |
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299 |
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300 self.writeauthormap() |
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301 finally: |
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302 self.cleanup() |
694 | 303 |
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304 def cleanup(self): |
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305 try: |
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306 self.dest.after() |
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307 finally: |
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308 self.source.after() |
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309 if self.revmapfilefd: |
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310 self.revmapfilefd.close() |
694 | 311 |
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312 def convert(ui, src, dest=None, revmapfile=None, **opts): |
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313 util._encoding = 'UTF-8' |
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314 |
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315 if not dest: |
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316 dest = hg.defaultdest(src) + "-hg" |
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317 ui.status("assuming destination %s\n" % dest) |
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318 |
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319 destc = convertsink(ui, dest, opts.get('dest_type')) |
316 | 320 |
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321 try: |
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322 srcc = convertsource(ui, src, opts.get('source_type'), |
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323 opts.get('rev')) |
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324 except Exception: |
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325 for path in destc.created: |
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326 shutil.rmtree(path, True) |
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327 raise |
316 | 328 |
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329 fmap = opts.get('filemap') |
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330 if fmap: |
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331 srcc = filemap.filemap_source(ui, srcc, fmap) |
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332 destc.setfilemapmode(True) |
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333 |
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334 if not revmapfile: |
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335 try: |
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336 revmapfile = destc.revmapfile() |
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337 except: |
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338 revmapfile = os.path.join(destc, "map") |
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339 |
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340 c = converter(ui, srcc, destc, revmapfile, opts) |
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341 c.convert() |
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342 |