Mercurial > hg > mercurial-crew-with-dirclash
annotate hgext/alias.py @ 5390:36c46e20976a
merge: provide *_ISLINK environment vars to merge helper
Sets HG_MY_ISLINK, HG_OTHER_ISLINK, HG_BASE_ISLINK in environment. Without these variables, it's impossible for the merge application to know whether the 'other' and 'base' files were symlinks in their original contexts. For the purposes of the merge they are always emitted as small text files.
author | Patrick Mezard <pmezard@gmail.com> |
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date | Wed, 03 Oct 2007 23:09:36 +0200 |
parents | 18a9fbb5cd78 |
children |
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: | |
5185
18a9fbb5cd78
dispatch: move command dispatching into its own module
Matt Mackall <mpm@selenic.com>
parents:
4946
diff
changeset
|
45 self._cmd = findcmd(self._ui, self._target, commands.table)[1] |
4800 | 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) |