Mercurial > hg
annotate hgext/convert/darcs.py @ 11778:7e5f5e5858f9 stable
convert: Using --dest-type svn crashed, if the source repo used tags.
The convert extension requires puttags(self, tags) to return a sequence
for a multi-variable assignment. If puttags implicitly returns None,
the code will break when trying to un-pack None for assignment.
author | Daniel J. Lauk <daniel.lauk@gmail.com> |
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date | Wed, 11 Aug 2010 11:46:06 +0200 |
parents | 33010ff1fd6f |
children | 4481f8a93c7a |
rev | line source |
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1 # darcs.py - darcs support for the convert extension |
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2 # |
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3 # Copyright 2007-2009 Matt Mackall <mpm@selenic.com> and others |
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4 # |
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5 # This software may be used and distributed according to the terms of the |
10263 | 6 # GNU General Public License version 2 or any later version. |
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7 |
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8 from common import NoRepo, checktool, commandline, commit, converter_source |
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9 from mercurial.i18n import _ |
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10 from mercurial import util |
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11 import os, shutil, tempfile |
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12 |
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13 # The naming drift of ElementTree is fun! |
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14 |
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15 try: |
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16 from xml.etree.cElementTree import ElementTree |
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17 except ImportError: |
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18 try: |
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19 from xml.etree.ElementTree import ElementTree |
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20 except ImportError: |
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21 try: |
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22 from elementtree.cElementTree import ElementTree |
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23 except ImportError: |
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24 try: |
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25 from elementtree.ElementTree import ElementTree |
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26 except ImportError: |
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27 ElementTree = None |
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28 |
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29 class darcs_source(converter_source, commandline): |
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30 def __init__(self, ui, path, rev=None): |
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31 converter_source.__init__(self, ui, path, rev=rev) |
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32 commandline.__init__(self, ui, 'darcs') |
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33 |
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34 # check for _darcs, ElementTree, _darcs/inventory so that we can |
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35 # easily skip test-convert-darcs if ElementTree is not around |
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36 if not os.path.exists(os.path.join(path, '_darcs', 'inventories')): |
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37 raise NoRepo(_("%s does not look like a darcs repository") % path) |
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38 |
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39 if not os.path.exists(os.path.join(path, '_darcs')): |
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40 raise NoRepo(_("%s does not look like a darcs repository") % path) |
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41 |
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42 checktool('darcs') |
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43 version = self.run0('--version').splitlines()[0].strip() |
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44 if version < '2.1': |
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45 raise util.Abort(_('darcs version 2.1 or newer needed (found %r)') % |
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46 version) |
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47 |
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48 if ElementTree is None: |
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49 raise util.Abort(_("Python ElementTree module is not available")) |
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50 |
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51 self.path = os.path.realpath(path) |
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52 |
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53 self.lastrev = None |
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54 self.changes = {} |
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55 self.parents = {} |
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56 self.tags = {} |
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57 |
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58 def before(self): |
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59 self.tmppath = tempfile.mkdtemp( |
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60 prefix='convert-' + os.path.basename(self.path) + '-') |
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61 output, status = self.run('init', repodir=self.tmppath) |
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62 self.checkexit(status) |
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63 |
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64 tree = self.xml('changes', xml_output=True, summary=True, |
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65 repodir=self.path) |
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66 tagname = None |
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67 child = None |
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68 for elt in tree.findall('patch'): |
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69 node = elt.get('hash') |
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70 name = elt.findtext('name', '') |
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71 if name.startswith('TAG '): |
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72 tagname = name[4:].strip() |
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73 elif tagname is not None: |
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74 self.tags[tagname] = node |
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75 tagname = None |
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76 self.changes[node] = elt |
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77 self.parents[child] = [node] |
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78 child = node |
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79 self.parents[child] = [] |
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80 |
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81 def after(self): |
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82 self.ui.debug('cleaning up %s\n' % self.tmppath) |
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83 shutil.rmtree(self.tmppath, ignore_errors=True) |
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84 |
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85 def xml(self, cmd, **kwargs): |
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86 etree = ElementTree() |
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87 fp = self._run(cmd, **kwargs) |
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88 etree.parse(fp) |
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89 self.checkexit(fp.close()) |
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90 return etree.getroot() |
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91 |
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92 def manifest(self): |
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93 man = [] |
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94 output, status = self.run('show', 'files', no_directories=True, |
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95 repodir=self.tmppath) |
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96 self.checkexit(status) |
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97 for line in output.split('\n'): |
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98 path = line[2:] |
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99 if path: |
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100 man.append(path) |
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101 return man |
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102 |
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103 def getheads(self): |
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104 return self.parents[None] |
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105 |
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106 def getcommit(self, rev): |
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107 elt = self.changes[rev] |
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108 date = util.strdate(elt.get('local_date'), '%a %b %d %H:%M:%S %Z %Y') |
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109 desc = elt.findtext('name') + '\n' + elt.findtext('comment', '') |
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110 return commit(author=elt.get('author'), date=util.datestr(date), |
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111 desc=desc.strip(), parents=self.parents[rev]) |
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112 |
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113 def pull(self, rev): |
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114 output, status = self.run('pull', self.path, all=True, |
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115 match='hash %s' % rev, |
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116 no_test=True, no_posthook=True, |
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117 external_merge='/bin/false', |
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118 repodir=self.tmppath) |
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119 if status: |
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120 if output.find('We have conflicts in') == -1: |
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121 self.checkexit(status, output) |
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122 output, status = self.run('revert', all=True, repodir=self.tmppath) |
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123 self.checkexit(status, output) |
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124 |
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125 def getchanges(self, rev): |
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126 copies = {} |
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127 changes = [] |
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128 man = None |
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129 for elt in self.changes[rev].find('summary').getchildren(): |
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130 if elt.tag in ('add_directory', 'remove_directory'): |
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131 continue |
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132 if elt.tag == 'move': |
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133 if man is None: |
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134 man = self.manifest() |
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135 source, dest = elt.get('from'), elt.get('to') |
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136 if source in man: |
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137 # File move |
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138 changes.append((source, rev)) |
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139 changes.append((dest, rev)) |
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140 copies[dest] = source |
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141 else: |
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142 # Directory move, deduce file moves from manifest |
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143 source = source + '/' |
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144 for f in man: |
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145 if not f.startswith(source): |
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146 continue |
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147 fdest = dest + '/' + f[len(source):] |
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148 changes.append((f, rev)) |
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149 changes.append((fdest, rev)) |
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150 copies[fdest] = f |
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151 else: |
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152 changes.append((elt.text.strip(), rev)) |
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153 self.pull(rev) |
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154 self.lastrev = rev |
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155 return sorted(changes), copies |
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156 |
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157 def getfile(self, name, rev): |
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158 if rev != self.lastrev: |
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159 raise util.Abort(_('internal calling inconsistency')) |
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160 path = os.path.join(self.tmppath, name) |
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161 data = open(path, 'rb').read() |
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162 mode = os.lstat(path).st_mode |
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163 mode = (mode & 0111) and 'x' or '' |
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164 return data, mode |
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165 |
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166 def gettags(self): |
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167 return self.tags |