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annotate hgext/convert/transport.py @ 4757:6a16ef0d1c7c

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convert extension: stripped-down svn transport module
author Daniel Holth <dholth@fastmail.fm>
date Sun, 01 Jul 2007 17:15:54 +0200
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children 4db03fa58bd5
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1 # -*- coding: utf-8 -*-
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2
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3 # Copyright (C) 2007 Daniel Holth <dholth@fastmail.fm>
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4 # This is a stripped-down version of the original bzr-svn transport.py,
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5 # Copyright (C) 2006 Jelmer Vernooij <jelmer@samba.org>
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6
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7 # This program is free software; you can redistribute it and/or modify
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8 # it under the terms of the GNU General Public License as published by
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9 # the Free Software Foundation; either version 2 of the License, or
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10 # (at your option) any later version.
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11
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12 # This program is distributed in the hope that it will be useful,
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13 # but WITHOUT ANY WARRANTY; without even the implied warranty of
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14 # MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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15 # GNU General Public License for more details.
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16
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17 # You should have received a copy of the GNU General Public License
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18 # along with this program; if not, write to the Free Software
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19 # Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
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20
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21 from cStringIO import StringIO
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22 import os
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23 from tempfile import mktemp
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24
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25 from svn.core import SubversionException, Pool
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26 import svn.ra
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27 import svn.core
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28
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29 # Some older versions of the Python bindings need to be
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30 # explicitly initialized. But what we want to do probably
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31 # won't work worth a darn against those libraries anyway!
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32 svn.ra.initialize()
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33
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34 svn_config = svn.core.svn_config_get_config(None)
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35
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36
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37 def _create_auth_baton(pool):
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38 """Create a Subversion authentication baton. """
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39 import svn.client
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40 # Give the client context baton a suite of authentication
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41 # providers.h
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42 providers = [
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43 svn.client.get_simple_provider(pool),
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44 svn.client.get_username_provider(pool),
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45 svn.client.get_ssl_client_cert_file_provider(pool),
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46 svn.client.get_ssl_client_cert_pw_file_provider(pool),
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47 svn.client.get_ssl_server_trust_file_provider(pool),
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48 ]
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49 return svn.core.svn_auth_open(providers, pool)
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50
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51
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52 # # The SVN libraries don't like trailing slashes...
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53 # return url.rstrip('/')
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54
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55
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56 class SvnRaCallbacks(svn.ra.callbacks2_t):
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57 """Remote access callbacks implementation for bzr-svn."""
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58 def __init__(self, pool):
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59 svn.ra.callbacks2_t.__init__(self)
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60 self.auth_baton = _create_auth_baton(pool)
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61 self.pool = pool
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62
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63 def open_tmp_file(self, pool):
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64 return mktemp(prefix='tailor-svn')
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65
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66 class NotBranchError(SubversionException):
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67 pass
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68
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69 class SvnRaTransport(object):
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70 """
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71 Open an ra connection to a Subversion repository.
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72 """
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73 def __init__(self, url="", ra=None):
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74 self.pool = Pool()
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75 self.svn_url = url
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76
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77 # Only Subversion 1.4 has reparent()
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78 if ra is None or not hasattr(svn.ra, 'reparent'):
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79 self.callbacks = SvnRaCallbacks(self.pool)
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80 try:
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81 ver = svn.ra.version()
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82 try: # Older SVN bindings
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83 self.ra = svn.ra.open2(self.svn_url.encode('utf8'), self.callbacks, None, svn_config, None)
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84 except TypeError, e:
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85 self.ra = svn.ra.open2(self.svn_url.encode('utf8'), self.callbacks, svn_config, None)
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86 except SubversionException, (_, num):
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87 if num == svn.core.SVN_ERR_RA_ILLEGAL_URL:
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88 raise NotBranchError(url)
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89 if num == svn.core.SVN_ERR_RA_LOCAL_REPOS_OPEN_FAILED:
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90 raise NotBranchError(url)
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91 if num == svn.core.SVN_ERR_BAD_URL:
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92 raise NotBranchError(url)
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93 raise
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94
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95 else:
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96 self.ra = ra
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97 svn.ra.reparent(self.ra, self.svn_url.encode('utf8'))
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98
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99 class Reporter:
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100 def __init__(self, (reporter, report_baton)):
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101 self._reporter = reporter
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102 self._baton = report_baton
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103
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104 def set_path(self, path, revnum, start_empty, lock_token, pool=None):
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105 svn.ra.reporter2_invoke_set_path(self._reporter, self._baton,
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106 path, revnum, start_empty, lock_token, pool)
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107
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108 def delete_path(self, path, pool=None):
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109 svn.ra.reporter2_invoke_delete_path(self._reporter, self._baton,
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110 path, pool)
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111
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112 def link_path(self, path, url, revision, start_empty, lock_token,
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113 pool=None):
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114 svn.ra.reporter2_invoke_link_path(self._reporter, self._baton,
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115 path, url, revision, start_empty, lock_token,
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116 pool)
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117
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118 def finish_report(self, pool=None):
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119 svn.ra.reporter2_invoke_finish_report(self._reporter,
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120 self._baton, pool)
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121
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122 def abort_report(self, pool=None):
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123 svn.ra.reporter2_invoke_abort_report(self._reporter,
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124 self._baton, pool)
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125
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126 def do_update(self, revnum, path, *args, **kwargs):
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127 return self.Reporter(svn.ra.do_update(self.ra, revnum, path, *args, **kwargs))
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128
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129 def clone(self, offset=None):
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130 """See Transport.clone()."""
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131 if offset is None:
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132 return self.__class__(self.base)
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133
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134 return SvnRaTransport(urlutils.join(self.base, offset), ra=self.ra)