Mercurial > hg
annotate hgext/convert/darcs.py @ 5520:cc3af86ab6fe
test-convert-darcs: skip if we can't find the elementtree module
This patch is a bit dirty to avoid having to repeat the dance required
to import elementtree.
author | Alexis S. L. Carvalho <alexis@cecm.usp.br> |
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date | Fri, 09 Nov 2007 20:21:35 -0200 |
parents | 003d1f174fe1 |
children | 03496d4fa509 |
rev | line source |
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1 # darcs support for the convert extension |
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2 |
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3 from common import NoRepo, commit, converter_source |
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4 from mercurial.i18n import _ |
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5 from mercurial import util |
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6 import os, shutil, tempfile |
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7 |
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8 # The naming drift of ElementTree is fun! |
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9 |
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10 try: from xml.etree.cElementTree import ElementTree |
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11 except ImportError: |
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12 try: from xml.etree.ElementTree import ElementTree |
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13 except ImportError: |
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14 try: from elementtree.cElementTree import ElementTree |
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15 except ImportError: |
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16 try: from elementtree.ElementTree import ElementTree |
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17 except ImportError: ElementTree = None |
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18 |
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19 |
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20 class darcs_source(converter_source): |
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21 def __init__(self, ui, path, rev=None): |
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22 super(darcs_source, self).__init__(ui, path, rev=rev) |
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23 |
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24 # check for _darcs, ElementTree, _darcs/inventory so that we can |
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25 # easily skip test-convert-darcs if ElementTree is not around |
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26 if not os.path.exists(os.path.join(path, '_darcs')): |
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27 raise NoRepo("couldn't open darcs repo %s" % path) |
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28 |
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29 if ElementTree is None: |
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30 raise util.Abort(_("Python ElementTree module is not available")) |
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31 |
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32 if not os.path.exists(os.path.join(path, '_darcs', 'inventory')): |
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33 raise NoRepo("couldn't open darcs repo %s" % path) |
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34 |
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35 self.path = os.path.realpath(path) |
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36 |
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37 self.lastrev = None |
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38 self.changes = {} |
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39 self.parents = {} |
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40 self.tags = {} |
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41 |
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42 def before(self): |
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43 self.tmppath = tempfile.mkdtemp( |
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44 prefix='convert-' + os.path.basename(self.path) + '-') |
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45 output, status = self.run('init', repodir=self.tmppath) |
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46 self.checkexit(status) |
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47 |
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48 tree = self.xml('changes', '--xml-output', '--summary') |
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49 tagname = None |
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50 child = None |
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51 for elt in tree.findall('patch'): |
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52 node = elt.get('hash') |
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53 name = elt.findtext('name', '') |
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54 if name.startswith('TAG '): |
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55 tagname = name[4:].strip() |
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56 elif tagname is not None: |
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57 self.tags[tagname] = node |
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58 tagname = None |
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59 self.changes[node] = elt |
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60 self.parents[child] = [node] |
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61 child = node |
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62 self.parents[child] = [] |
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63 |
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64 def after(self): |
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65 self.ui.debug('cleaning up %s\n' % self.tmppath) |
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66 shutil.rmtree(self.tmppath, ignore_errors=True) |
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67 |
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68 def _run(self, cmd, *args, **kwargs): |
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69 cmdline = ['darcs', cmd, '--repodir', kwargs.get('repodir', self.path)] |
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70 cmdline += args |
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71 cmdline = [util.shellquote(arg) for arg in cmdline] |
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72 cmdline += ['<', util.nulldev] |
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73 cmdline = ' '.join(cmdline) |
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74 self.ui.debug(cmdline, '\n') |
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75 return util.popen(cmdline) |
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76 |
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77 def run(self, cmd, *args, **kwargs): |
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78 fp = self._run(cmd, *args, **kwargs) |
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79 output = fp.read() |
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80 return output, fp.close() |
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81 |
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82 def checkexit(self, status, output=''): |
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83 if status: |
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84 if output: |
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85 self.ui.warn(_('darcs error:\n')) |
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86 self.ui.warn(output) |
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87 msg = util.explain_exit(status)[0] |
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88 raise util.Abort(_('darcs %s') % msg) |
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89 |
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90 def xml(self, cmd, *opts): |
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91 etree = ElementTree() |
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92 fp = self._run(cmd, *opts) |
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93 etree.parse(fp) |
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94 self.checkexit(fp.close()) |
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95 return etree.getroot() |
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96 |
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97 def getheads(self): |
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98 return self.parents[None] |
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99 |
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100 def getcommit(self, rev): |
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101 elt = self.changes[rev] |
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102 date = util.strdate(elt.get('local_date'), '%a %b %d %H:%M:%S %Z %Y') |
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103 desc = elt.findtext('name') + '\n' + elt.findtext('comment', '') |
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104 return commit(author=elt.get('author'), date=util.datestr(date), |
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105 desc=desc.strip(), parents=self.parents[rev]) |
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106 |
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107 def pull(self, rev): |
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108 output, status = self.run('pull', self.path, '--all', |
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109 '--match', 'hash %s' % rev, |
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110 '--no-test', '--no-posthook', |
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111 '--external-merge', '/bin/false', |
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112 repodir=self.tmppath) |
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113 if status: |
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114 if output.find('We have conflicts in') == -1: |
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115 self.checkexit(status, output) |
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116 output, status = self.run('revert', '--all', repodir=self.tmppath) |
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117 self.checkexit(status, output) |
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118 |
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119 def getchanges(self, rev): |
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120 self.pull(rev) |
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121 copies = {} |
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122 changes = [] |
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123 for elt in self.changes[rev].find('summary').getchildren(): |
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124 if elt.tag in ('add_directory', 'remove_directory'): |
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125 continue |
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126 if elt.tag == 'move': |
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127 changes.append((elt.get('from'), rev)) |
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128 copies[elt.get('from')] = elt.get('to') |
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129 else: |
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130 changes.append((elt.text.strip(), rev)) |
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131 changes.sort() |
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132 self.lastrev = rev |
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133 return changes, copies |
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134 |
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135 def getfile(self, name, rev): |
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136 if rev != self.lastrev: |
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137 raise util.Abort(_('internal calling inconsistency')) |
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138 return open(os.path.join(self.tmppath, name), 'rb').read() |
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139 |
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140 def getmode(self, name, rev): |
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141 mode = os.lstat(os.path.join(self.tmppath, name)).st_mode |
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142 return (mode & 0111) and 'x' or '' |
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143 |
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144 def gettags(self): |
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145 return self.tags |