Mercurial > hg > mercurial-crew-with-dirclash
annotate hgext/alias.py @ 5049:41284ad94852
Merge with stable
author | Brendan Cully <brendan@kublai.com> |
---|---|
date | Wed, 01 Aug 2007 14:32:53 -0700 |
parents | a28661788f2f |
children | 18a9fbb5cd78 |
rev | line source |
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4800 | 1 # Copyright (C) 2007 Brendan Cully <brendan@kublai.com> |
2 # This file is published under the GNU GPL. | |
3 | |
4 '''allow user-defined command aliases | |
5 | |
6 To use, create entries in your hgrc of the form | |
7 | |
8 [alias] | |
9 mycmd = cmd --args | |
10 ''' | |
11 | |
12 from mercurial.cmdutil import findcmd, UnknownCommand, AmbiguousCommand | |
13 from mercurial import commands | |
14 | |
15 cmdtable = {} | |
16 | |
17 class RecursiveCommand(Exception): pass | |
18 | |
19 class lazycommand(object): | |
20 '''defer command lookup until needed, so that extensions loaded | |
21 after alias can be aliased''' | |
22 def __init__(self, ui, name, target): | |
23 self._ui = ui | |
24 self._name = name | |
25 self._target = target | |
26 self._cmd = None | |
27 | |
28 def __len__(self): | |
29 self._resolve() | |
30 return len(self._cmd) | |
31 | |
32 def __getitem__(self, key): | |
33 self._resolve() | |
34 return self._cmd[key] | |
35 | |
36 def __iter__(self): | |
37 self._resolve() | |
38 return self._cmd.__iter__() | |
39 | |
40 def _resolve(self): | |
41 if self._cmd is not None: | |
42 return | |
43 | |
44 try: | |
45 self._cmd = findcmd(self._ui, self._target)[1] | |
46 if self._cmd == self: | |
47 raise RecursiveCommand() | |
48 if self._target in commands.norepo.split(' '): | |
49 commands.norepo += ' %s' % self._name | |
50 return | |
51 except UnknownCommand: | |
52 msg = '*** [alias] %s: command %s is unknown' % \ | |
53 (self._name, self._target) | |
54 except AmbiguousCommand: | |
55 msg = '*** [alias] %s: command %s is ambiguous' % \ | |
56 (self._name, self._target) | |
57 except RecursiveCommand: | |
58 msg = '*** [alias] %s: circular dependency on %s' % \ | |
59 (self._name, self._target) | |
60 def nocmd(*args, **opts): | |
61 self._ui.warn(msg + '\n') | |
62 return 1 | |
63 nocmd.__doc__ = msg | |
64 self._cmd = (nocmd, [], '') | |
65 commands.norepo += ' %s' % self._name | |
66 | |
67 def uisetup(ui): | |
68 for cmd, target in ui.configitems('alias'): | |
69 if not target: | |
70 ui.warn('*** [alias] %s: no definition\n' % cmd) | |
71 continue | |
72 args = target.split(' ') | |
73 tcmd = args.pop(0) | |
74 if args: | |
4946
a28661788f2f
test-alias: Removed fallback to parentui, no longer needed since 10afa3fab6b4
Thomas Arendsen Hein <thomas@intevation.de>
parents:
4807
diff
changeset
|
75 ui.setconfig('defaults', cmd, ' '.join(args)) |
4800 | 76 cmdtable[cmd] = lazycommand(ui, cmd, tcmd) |