Mercurial > hgsubversion

annotate hgsubversion/svnrepo.py @ 597:737292a31028

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svnrepo: ease debugging of Subversion fallback Show a verbose note when falling back to Subversion support, and enable showing the traceback.
author Dan Villiom Podlaski Christiansen <danchr@gmail.com>
date Wed, 31 Mar 2010 22:06:05 +0200
parents 037bba1c6736
children b70f7c82b9b8
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1 """
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2 repository class-based interface for hgsubversion
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3
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4 Copyright (C) 2009, Dan Villiom Podlaski Christiansen <danchr@gmail.com>
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5 See parent package for licensing.
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6
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7 Internally, Mercurial assumes that every single repository is a localrepository
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8 subclass: pull() is called on the instance pull *to*, but not the one pulled
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9 *from*. To work around this, we create two classes:
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10
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11 - svnremoterepo for Subversion repositories, but it doesn't really do anything.
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12 - svnlocalrepo for local repositories which handles both operations on itself --
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13 the local, hgsubversion-enabled clone -- and the remote repository. Decorators
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14 are used to distinguish and filter these operations from others.
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15 """
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16
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17 from mercurial import error
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18 from mercurial import util as hgutil
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19 from mercurial import httprepo
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20 import mercurial.repo
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21
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22 import util
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23 import wrappers
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24 import svnwrap
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25 import svnmeta
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26
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27 propertycache = hgutil.propertycache
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29 def generate_repo_class(ui, repo):
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30 """ This function generates the local repository wrapper. """
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31
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32 superclass = repo.__class__
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34 def remotesvn(fn):
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35 """
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36 Filter for instance methods which require the first argument
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37 to be a remote Subversion repository instance.
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38 """
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39 original = getattr(repo, fn.__name__)
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40 def wrapper(self, *args, **opts):
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41 capable = getattr(args[0], 'capable', lambda x: False)
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42 if capable('subversion'):
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43 return fn(self, *args, **opts)
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44 else:
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45 return original(*args, **opts)
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46 wrapper.__name__ = fn.__name__ + '_wrapper'
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47 wrapper.__doc__ = fn.__doc__
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48 return wrapper
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49
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50 class svnlocalrepo(superclass):
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51 @remotesvn
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52 def push(self, remote, force=False, revs=None):
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53 return wrappers.push(self, remote, force, revs)
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54
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55 @remotesvn
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56 def pull(self, remote, heads=[], force=False):
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57 return wrappers.pull(self, remote, heads, force)
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58
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59 @remotesvn
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60 def findoutgoing(self, remote, base=None, heads=None, force=False):
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61 return wrappers.outgoing(repo, remote, heads, force)
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62
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63 def svnmeta(self, uuid=None, subdir=''):
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64 return svnmeta.SVNMeta(self, uuid, subdir)
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65
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66 repo.__class__ = svnlocalrepo
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67
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68 class svnremoterepo(mercurial.repo.repository):
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69 """ the dumb wrapper for actual Subversion repositories """
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71 def __init__(self, ui, path=None):
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72 self.ui = ui
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73 if path is None:
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74 path = self.ui.config('paths', 'default')
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75 self.path = path
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76 self.capabilities = set(['lookup', 'subversion'])
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77
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78 @propertycache
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79 def svnauth(self):
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80 # DO NOT default the user to hg's getuser(). If you provide
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81 # *any* default username to Subversion, it won't use any remembered
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82 # username for the desired realm, breaking OS X Keychain support,
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83 # GNOME keyring support, and all similar tools.
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84 user = self.ui.config('hgsubversion', 'username')
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85 passwd = self.ui.config('hgsubversion', 'password')
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86 url = util.normalize_url(self.path)
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87 user, passwd, url = svnwrap.parse_url(url, user, passwd)
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88 return url, user, passwd
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89
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90 @property
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91 def svnurl(self):
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92 return self.svnauth[0]
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93
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94 @propertycache
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95 def svn(self):
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96 return svnwrap.SubversionRepo(*self.svnauth)
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97
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98 @property
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99 def svnuuid(self):
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100 return self.svn.uuid
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101
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102 def url(self):
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103 return self.path
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104
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105 def lookup(self, key):
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106 return key
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107
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108 def cancopy(self):
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109 return False
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110
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111 def heads(self, *args, **opts):
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112 """
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113 Whenever this function is hit, we abort. The traceback is useful for
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114 figuring out where to intercept the functionality.
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115 """
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116 raise hgutil.Abort('command unavailable for Subversion repositories')
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117
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118 def instance(ui, url, create):
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119 if url.startswith('http://') or url.startswith('https://'):
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120 try:
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121 # may yield a bogus 'real URL...' message
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122 return httprepo.instance(ui, url, create)
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123 except error.RepoError:
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124 ui.traceback()
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Dan Villiom Podlaski Christiansen <danchr@gmail.com>
parents: 468
diff changeset
125 ui.note('(falling back to Subversion support)\n')
342
76c833526fbc Use fallbacks in the wrappers for Subversion support, instead of prefixes.
Dan Villiom Podlaski Christiansen <danchr@gmail.com>
parents: 337
diff changeset
126
326
33736e2e25f0 alternate approach for supporting svn schemes for repository paths
Dan Villiom Podlaski Christiansen <danchr@gmail.com>
parents: 158
diff changeset
127 if create:
33736e2e25f0 alternate approach for supporting svn schemes for repository paths
Dan Villiom Podlaski Christiansen <danchr@gmail.com>
parents: 158
diff changeset
128 raise hgutil.Abort('cannot create new remote Subversion repository')
33736e2e25f0 alternate approach for supporting svn schemes for repository paths
Dan Villiom Podlaski Christiansen <danchr@gmail.com>
parents: 158
diff changeset
129
331
75f082b5897e Switch to using url scheme wrappers instead of duplicating each command we wrap.
Dan Villiom Podlaski Christiansen <danchr@gmail.com>
parents: 328
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130 return svnremoterepo(ui, url)