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author | Patrick Mezard <pmezard@gmail.com> |
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date | Sat, 26 Jan 2008 14:45:04 +0100 |
parents | 08d6e8754388 |
children | a079cf630065 |
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1089 | 1 # repo.py - repository base classes for mercurial |
2 # | |
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Updated copyright notices and add "and others" to "hg version"
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3 # Copyright 2005, 2006 Matt Mackall <mpm@selenic.com> |
2859 | 4 # Copyright 2006 Vadim Gelfer <vadim.gelfer@gmail.com> |
1089 | 5 # |
6 # This software may be used and distributed according to the terms | |
7 # of the GNU General Public License, incorporated herein by reference. | |
8 | |
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9 from i18n import _ |
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10 |
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11 class RepoError(Exception): |
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12 pass |
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13 |
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14 class NoCapability(RepoError): |
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15 pass |
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16 |
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17 class repository(object): |
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18 def capable(self, name): |
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19 '''tell whether repo supports named capability. |
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20 return False if not supported. |
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21 if boolean capability, return True. |
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22 if string capability, return string.''' |
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23 if name in self.capabilities: |
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24 return True |
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25 name_eq = name + '=' |
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26 for cap in self.capabilities: |
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27 if cap.startswith(name_eq): |
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28 return cap[len(name_eq):] |
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29 return False |
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30 |
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31 def requirecap(self, name, purpose): |
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32 '''raise an exception if the given capability is not present''' |
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33 if not self.capable(name): |
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34 raise NoCapability(_('cannot %s; remote repository does not ' |
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35 'support the %r capability') % |
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36 (purpose, name)) |