Mercurial > hgsubversion

annotate hgsubversion/svnrepo.py @ 443:f55d2954b158

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svnrepo: remove unused localsvn decorator
author Dirkjan Ochtman <dirkjan@ochtman.nl>
date Tue, 16 Jun 2009 13:33:30 +0200
parents 3ed71e63f64c
children 0f7095f53ca3
Ignore whitespace changes - Everywhere: Within whitespace: At end of lines:
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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
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25 def generate_repo_class(ui, repo):
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26 """ This function generates the local repository wrapper. """
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27
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28 superclass = repo.__class__
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29
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30 def remotesvn(fn):
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31 """
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32 Filter for instance methods which require the first argument
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33 to be a remote Subversion repository instance.
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34 """
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35 original = getattr(repo, fn.__name__)
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36 def wrapper(self, *args, **opts):
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37 capable = getattr(args[0], 'capable', lambda x: False)
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38 if capable('subversion'):
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39 return fn(self, *args, **opts)
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40 else:
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41 return original(*args, **opts)
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42 wrapper.__name__ = fn.__name__ + '_wrapper'
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43 wrapper.__doc__ = fn.__doc__
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44 return wrapper
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45
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46 class svnlocalrepo(superclass):
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47 @remotesvn
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48 def push(self, remote, force=False, revs=None):
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49 return wrappers.push(self, remote, force, revs)
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50
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51 @remotesvn
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52 def pull(self, remote, heads=[], force=False):
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53 return wrappers.pull(self, remote, heads, force)
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54
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55 @remotesvn
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56 def findoutgoing(self, remote, base=None, heads=None, force=False):
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57 return wrappers.outgoing(repo, remote, heads, force)
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58
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59 repo.__class__ = svnlocalrepo
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60
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61 class svnremoterepo(mercurial.repo.repository):
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62 """ the dumb wrapper for actual Subversion repositories """
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63
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64 def __init__(self, ui, path):
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65 self.ui = ui
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66 self.path = path
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67 self.capabilities = set(['lookup', 'subversion'])
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68
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69 @property
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70 def svnurl(self):
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71 return util.normalize_url(self.path)
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72
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73 def url(self):
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74 return self.path
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75
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76 def lookup(self, key):
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77 return key
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78
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79 def cancopy(self):
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80 return False
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81
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82 def heads(self, *args, **opts):
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83 """
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84 Whenever this function is hit, we abort. The traceback is useful for
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85 figuring out where to intercept the functionality.
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86 """
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87 raise hgutil.Abort('command unavailable for Subversion repositories')
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88
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89 def instance(ui, url, create):
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90 if url.startswith('http://') or url.startswith('https://'):
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91 try:
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92 # may yield a bogus 'real URL...' message
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93 return httprepo.instance(ui, url, create)
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94 except error.RepoError:
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95 pass
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96
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97 if create:
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98 raise hgutil.Abort('cannot create new remote Subversion repository')
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99
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100 return svnremoterepo(ui, url)