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1 # repo.py - repository base classes for mercurial
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2 #
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3 # Copyright 2005, 2006 Matt Mackall <mpm@selenic.com>
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4 # Copyright 2006 Vadim Gelfer <vadim.gelfer@gmail.com>
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5 #
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6 # This software may be used and distributed according to the terms of the
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7 # GNU General Public License version 2, incorporated herein by reference.
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8
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9 from i18n import _
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10 import error
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11
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12 class repository(object):
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13 def capable(self, name):
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14 '''tell whether repo supports named capability.
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15 return False if not supported.
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16 if boolean capability, return True.
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17 if string capability, return string.'''
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18 if name in self.capabilities:
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19 return True
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20 name_eq = name + '='
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21 for cap in self.capabilities:
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22 if cap.startswith(name_eq):
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23 return cap[len(name_eq):]
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24 return False
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25
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26 def requirecap(self, name, purpose):
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27 '''raise an exception if the given capability is not present'''
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28 if not self.capable(name):
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29 raise error.CapabilityError(
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30 _('cannot %s; remote repository does not '
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31 'support the %r capability') % (purpose, name))
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32
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33 def local(self):
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34 return False
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35
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36 def cancopy(self):
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37 return self.local()
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38
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39 def rjoin(self, path):
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40 url = self.url()
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41 if url.endswith('/'):
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42 return url + path
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43 return url + '/' + path
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