Mercurial > hg
annotate hgext/convert/darcs.py @ 23319:3177d710630d
merge: drop underscore prefix from _checkunknown()
The method has been called from commands.py since 3eab42088be4
(update: just merge unknown file collisions, 2012-02-09), so drop the
underscore prefix that suggests that it's private.
author | Martin von Zweigbergk <martinvonz@google.com> |
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date | Thu, 13 Nov 2014 23:12:15 -0800 |
parents | 35ab037de989 |
children | 216fa1ba9993 |
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 _ |
14139 | 10 from mercurial import util |
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11 import os, shutil, tempfile, re, errno |
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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, XMLParser |
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17 except ImportError: |
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18 try: |
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19 from xml.etree.ElementTree import ElementTree, XMLParser |
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20 except ImportError: |
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21 try: |
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22 from elementtree.cElementTree import ElementTree, XMLParser |
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23 except ImportError: |
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24 try: |
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25 from elementtree.ElementTree import ElementTree, XMLParser |
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26 except ImportError: |
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27 pass |
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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 so that we can easily skip |
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35 # test-convert-darcs if ElementTree is not around |
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36 if not os.path.exists(os.path.join(path, '_darcs')): |
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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 checktool('darcs') |
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40 version = self.run0('--version').splitlines()[0].strip() |
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41 if version < '2.1': |
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42 raise util.Abort(_('darcs version 2.1 or newer needed (found %r)') % |
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43 version) |
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44 |
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45 if "ElementTree" not in globals(): |
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46 raise util.Abort(_("Python ElementTree module is not available")) |
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47 |
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48 self.path = os.path.realpath(path) |
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49 |
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50 self.lastrev = None |
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51 self.changes = {} |
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52 self.parents = {} |
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53 self.tags = {} |
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54 |
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55 # Check darcs repository format |
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56 format = self.format() |
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57 if format: |
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58 if format in ('darcs-1.0', 'hashed'): |
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59 raise NoRepo(_("%s repository format is unsupported, " |
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60 "please upgrade") % format) |
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61 else: |
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62 self.ui.warn(_('failed to detect repository format!')) |
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63 |
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64 def before(self): |
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65 self.tmppath = tempfile.mkdtemp( |
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66 prefix='convert-' + os.path.basename(self.path) + '-') |
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67 output, status = self.run('init', repodir=self.tmppath) |
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68 self.checkexit(status) |
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69 |
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70 tree = self.xml('changes', xml_output=True, summary=True, |
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71 repodir=self.path) |
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72 tagname = None |
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73 child = None |
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74 for elt in tree.findall('patch'): |
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75 node = elt.get('hash') |
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76 name = elt.findtext('name', '') |
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77 if name.startswith('TAG '): |
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78 tagname = name[4:].strip() |
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79 elif tagname is not None: |
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80 self.tags[tagname] = node |
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81 tagname = None |
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82 self.changes[node] = elt |
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83 self.parents[child] = [node] |
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84 child = node |
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85 self.parents[child] = [] |
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86 |
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87 def after(self): |
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88 self.ui.debug('cleaning up %s\n' % self.tmppath) |
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89 shutil.rmtree(self.tmppath, ignore_errors=True) |
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90 |
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91 def recode(self, s, encoding=None): |
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92 if isinstance(s, unicode): |
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93 # XMLParser returns unicode objects for anything it can't |
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94 # encode into ASCII. We convert them back to str to get |
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95 # recode's normal conversion behavior. |
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96 s = s.encode('latin-1') |
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97 return super(darcs_source, self).recode(s, encoding) |
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98 |
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99 def xml(self, cmd, **kwargs): |
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100 # NOTE: darcs is currently encoding agnostic and will print |
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101 # patch metadata byte-for-byte, even in the XML changelog. |
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102 etree = ElementTree() |
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103 # While we are decoding the XML as latin-1 to be as liberal as |
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104 # possible, etree will still raise an exception if any |
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105 # non-printable characters are in the XML changelog. |
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106 parser = XMLParser(encoding='latin-1') |
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107 p = self._run(cmd, **kwargs) |
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108 etree.parse(p.stdout, parser=parser) |
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109 p.wait() |
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110 self.checkexit(p.returncode) |
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111 return etree.getroot() |
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112 |
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113 def format(self): |
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114 output, status = self.run('show', 'repo', no_files=True, |
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115 repodir=self.path) |
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116 self.checkexit(status) |
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117 m = re.search(r'^\s*Format:\s*(.*)$', output, re.MULTILINE) |
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118 if not m: |
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119 return None |
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120 return ','.join(sorted(f.strip() for f in m.group(1).split(','))) |
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121 |
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122 def manifest(self): |
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123 man = [] |
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124 output, status = self.run('show', 'files', no_directories=True, |
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125 repodir=self.tmppath) |
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126 self.checkexit(status) |
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127 for line in output.split('\n'): |
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128 path = line[2:] |
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129 if path: |
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130 man.append(path) |
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131 return man |
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132 |
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133 def getheads(self): |
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134 return self.parents[None] |
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135 |
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136 def getcommit(self, rev): |
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137 elt = self.changes[rev] |
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138 date = util.strdate(elt.get('local_date'), '%a %b %d %H:%M:%S %Z %Y') |
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139 desc = elt.findtext('name') + '\n' + elt.findtext('comment', '') |
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140 # etree can return unicode objects for name, comment, and author, |
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141 # so recode() is used to ensure str objects are emitted. |
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142 return commit(author=self.recode(elt.get('author')), |
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143 date=util.datestr(date, '%Y-%m-%d %H:%M:%S %1%2'), |
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144 desc=self.recode(desc).strip(), |
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145 parents=self.parents[rev]) |
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146 |
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147 def pull(self, rev): |
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148 output, status = self.run('pull', self.path, all=True, |
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149 match='hash %s' % rev, |
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150 no_test=True, no_posthook=True, |
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151 external_merge='/bin/false', |
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152 repodir=self.tmppath) |
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153 if status: |
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154 if output.find('We have conflicts in') == -1: |
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155 self.checkexit(status, output) |
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156 output, status = self.run('revert', all=True, repodir=self.tmppath) |
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157 self.checkexit(status, output) |
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158 |
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159 def getchanges(self, rev, full): |
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160 if full: |
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161 raise util.Abort(_("convert from darcs do not support --full")) |
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162 copies = {} |
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163 changes = [] |
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164 man = None |
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165 for elt in self.changes[rev].find('summary').getchildren(): |
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166 if elt.tag in ('add_directory', 'remove_directory'): |
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167 continue |
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168 if elt.tag == 'move': |
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169 if man is None: |
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170 man = self.manifest() |
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171 source, dest = elt.get('from'), elt.get('to') |
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172 if source in man: |
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173 # File move |
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174 changes.append((source, rev)) |
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175 changes.append((dest, rev)) |
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176 copies[dest] = source |
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177 else: |
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178 # Directory move, deduce file moves from manifest |
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179 source = source + '/' |
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180 for f in man: |
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181 if not f.startswith(source): |
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182 continue |
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183 fdest = dest + '/' + f[len(source):] |
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184 changes.append((f, rev)) |
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185 changes.append((fdest, rev)) |
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186 copies[fdest] = f |
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187 else: |
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188 changes.append((elt.text.strip(), rev)) |
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189 self.pull(rev) |
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190 self.lastrev = rev |
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191 return sorted(changes), copies |
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192 |
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193 def getfile(self, name, rev): |
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194 if rev != self.lastrev: |
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195 raise util.Abort(_('internal calling inconsistency')) |
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196 path = os.path.join(self.tmppath, name) |
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197 try: |
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198 data = util.readfile(path) |
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199 mode = os.lstat(path).st_mode |
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200 except IOError, inst: |
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201 if inst.errno == errno.ENOENT: |
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202 return None, None |
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203 raise |
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204 mode = (mode & 0111) and 'x' or '' |
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205 return data, mode |
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206 |
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207 def gettags(self): |
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208 return self.tags |