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comparison mercurial/repo.py @ 5255:65dc707606ed

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Push capability checking into protocol-level code.
author Bryan O'Sullivan <bos@serpentine.com>
date Mon, 27 Aug 2007 14:48:08 -0700
parents 63b9d2deed48
children 08d6e8754388
comparison
equal deleted inserted replaced
5254:b534c502bfb3 5255:65dc707606ed
7 # of the GNU General Public License, incorporated herein by reference. 7 # of the GNU General Public License, incorporated herein by reference.
8 8
9 class RepoError(Exception): 9 class RepoError(Exception):
10 pass 10 pass
11 11
12 class NoCapability(RepoError):
13 pass
14
12 class repository(object): 15 class repository(object):
13 def capable(self, name): 16 def capable(self, name):
14 '''tell whether repo supports named capability. 17 '''tell whether repo supports named capability.
15 return False if not supported. 18 return False if not supported.
16 if boolean capability, return True. 19 if boolean capability, return True.
17 if string capability, return string.''' 20 if string capability, return string.'''
21 if name in self.capabilities:
22 return True
18 name_eq = name + '=' 23 name_eq = name + '='
19 for cap in self.capabilities: 24 for cap in self.capabilities:
20 if name == cap:
21 return True
22 if cap.startswith(name_eq): 25 if cap.startswith(name_eq):
23 return cap[len(name_eq):] 26 return cap[len(name_eq):]
24 return False 27 return False
28
29 def requirecap(self, name, purpose):
30 '''raise an exception if the given capability is not present'''
31 if not self.capable(name):
32 raise NoCapability(_('cannot %s; remote repository does not '
33 'support the %r capability') %
34 (purpose, name))