annotate hgext/alias.py @ 6167:f53b9a383476

tests: easier hg serve error diagnosis
author Dirkjan Ochtman <dirkjan@ochtman.nl>
date Sat, 23 Feb 2008 11:18:34 +0100
parents 18a9fbb5cd78
children f7d545a866e8
Ignore whitespace changes - Everywhere: Within whitespace: At end of lines:
rev   line source
4801
6aa1fae4c28a Add alias extension
Brendan Cully <brendan@kublai.com>
parents:
diff changeset
1 # Copyright (C) 2007 Brendan Cully <brendan@kublai.com>
6aa1fae4c28a Add alias extension
Brendan Cully <brendan@kublai.com>
parents:
diff changeset
2 # This file is published under the GNU GPL.
6aa1fae4c28a Add alias extension
Brendan Cully <brendan@kublai.com>
parents:
diff changeset
3
6aa1fae4c28a Add alias extension
Brendan Cully <brendan@kublai.com>
parents:
diff changeset
4 '''allow user-defined command aliases
6aa1fae4c28a Add alias extension
Brendan Cully <brendan@kublai.com>
parents:
diff changeset
5
6aa1fae4c28a Add alias extension
Brendan Cully <brendan@kublai.com>
parents:
diff changeset
6 To use, create entries in your hgrc of the form
6aa1fae4c28a Add alias extension
Brendan Cully <brendan@kublai.com>
parents:
diff changeset
7
6aa1fae4c28a Add alias extension
Brendan Cully <brendan@kublai.com>
parents:
diff changeset
8 [alias]
6aa1fae4c28a Add alias extension
Brendan Cully <brendan@kublai.com>
parents:
diff changeset
9 mycmd = cmd --args
6aa1fae4c28a Add alias extension
Brendan Cully <brendan@kublai.com>
parents:
diff changeset
10 '''
6aa1fae4c28a Add alias extension
Brendan Cully <brendan@kublai.com>
parents:
diff changeset
11
6aa1fae4c28a Add alias extension
Brendan Cully <brendan@kublai.com>
parents:
diff changeset
12 from mercurial.cmdutil import findcmd, UnknownCommand, AmbiguousCommand
6aa1fae4c28a Add alias extension
Brendan Cully <brendan@kublai.com>
parents:
diff changeset
13 from mercurial import commands
6aa1fae4c28a Add alias extension
Brendan Cully <brendan@kublai.com>
parents:
diff changeset
14
6aa1fae4c28a Add alias extension
Brendan Cully <brendan@kublai.com>
parents:
diff changeset
15 cmdtable = {}
6aa1fae4c28a Add alias extension
Brendan Cully <brendan@kublai.com>
parents:
diff changeset
16
6aa1fae4c28a Add alias extension
Brendan Cully <brendan@kublai.com>
parents:
diff changeset
17 class RecursiveCommand(Exception): pass
6aa1fae4c28a Add alias extension
Brendan Cully <brendan@kublai.com>
parents:
diff changeset
18
6aa1fae4c28a Add alias extension
Brendan Cully <brendan@kublai.com>
parents:
diff changeset
19 class lazycommand(object):
6aa1fae4c28a Add alias extension
Brendan Cully <brendan@kublai.com>
parents:
diff changeset
20 '''defer command lookup until needed, so that extensions loaded
6aa1fae4c28a Add alias extension
Brendan Cully <brendan@kublai.com>
parents:
diff changeset
21 after alias can be aliased'''
6aa1fae4c28a Add alias extension
Brendan Cully <brendan@kublai.com>
parents:
diff changeset
22 def __init__(self, ui, name, target):
6aa1fae4c28a Add alias extension
Brendan Cully <brendan@kublai.com>
parents:
diff changeset
23 self._ui = ui
6aa1fae4c28a Add alias extension
Brendan Cully <brendan@kublai.com>
parents:
diff changeset
24 self._name = name
6aa1fae4c28a Add alias extension
Brendan Cully <brendan@kublai.com>
parents:
diff changeset
25 self._target = target
6aa1fae4c28a Add alias extension
Brendan Cully <brendan@kublai.com>
parents:
diff changeset
26 self._cmd = None
6aa1fae4c28a Add alias extension
Brendan Cully <brendan@kublai.com>
parents:
diff changeset
27
6aa1fae4c28a Add alias extension
Brendan Cully <brendan@kublai.com>
parents:
diff changeset
28 def __len__(self):
6aa1fae4c28a Add alias extension
Brendan Cully <brendan@kublai.com>
parents:
diff changeset
29 self._resolve()
6aa1fae4c28a Add alias extension
Brendan Cully <brendan@kublai.com>
parents:
diff changeset
30 return len(self._cmd)
6aa1fae4c28a Add alias extension
Brendan Cully <brendan@kublai.com>
parents:
diff changeset
31
6aa1fae4c28a Add alias extension
Brendan Cully <brendan@kublai.com>
parents:
diff changeset
32 def __getitem__(self, key):
6aa1fae4c28a Add alias extension
Brendan Cully <brendan@kublai.com>
parents:
diff changeset
33 self._resolve()
6aa1fae4c28a Add alias extension
Brendan Cully <brendan@kublai.com>
parents:
diff changeset
34 return self._cmd[key]
6aa1fae4c28a Add alias extension
Brendan Cully <brendan@kublai.com>
parents:
diff changeset
35
6aa1fae4c28a Add alias extension
Brendan Cully <brendan@kublai.com>
parents:
diff changeset
36 def __iter__(self):
6aa1fae4c28a Add alias extension
Brendan Cully <brendan@kublai.com>
parents:
diff changeset
37 self._resolve()
6aa1fae4c28a Add alias extension
Brendan Cully <brendan@kublai.com>
parents:
diff changeset
38 return self._cmd.__iter__()
6aa1fae4c28a Add alias extension
Brendan Cully <brendan@kublai.com>
parents:
diff changeset
39
6aa1fae4c28a Add alias extension
Brendan Cully <brendan@kublai.com>
parents:
diff changeset
40 def _resolve(self):
6aa1fae4c28a Add alias extension
Brendan Cully <brendan@kublai.com>
parents:
diff changeset
41 if self._cmd is not None:
6aa1fae4c28a Add alias extension
Brendan Cully <brendan@kublai.com>
parents:
diff changeset
42 return
6aa1fae4c28a Add alias extension
Brendan Cully <brendan@kublai.com>
parents:
diff changeset
43
6aa1fae4c28a Add alias extension
Brendan Cully <brendan@kublai.com>
parents:
diff changeset
44 try:
5178
18a9fbb5cd78 dispatch: move command dispatching into its own module
Matt Mackall <mpm@selenic.com>
parents: 4964
diff changeset
45 self._cmd = findcmd(self._ui, self._target, commands.table)[1]
4801
6aa1fae4c28a Add alias extension
Brendan Cully <brendan@kublai.com>
parents:
diff changeset
46 if self._cmd == self:
6aa1fae4c28a Add alias extension
Brendan Cully <brendan@kublai.com>
parents:
diff changeset
47 raise RecursiveCommand()
6aa1fae4c28a Add alias extension
Brendan Cully <brendan@kublai.com>
parents:
diff changeset
48 if self._target in commands.norepo.split(' '):
6aa1fae4c28a Add alias extension
Brendan Cully <brendan@kublai.com>
parents:
diff changeset
49 commands.norepo += ' %s' % self._name
6aa1fae4c28a Add alias extension
Brendan Cully <brendan@kublai.com>
parents:
diff changeset
50 return
6aa1fae4c28a Add alias extension
Brendan Cully <brendan@kublai.com>
parents:
diff changeset
51 except UnknownCommand:
6aa1fae4c28a Add alias extension
Brendan Cully <brendan@kublai.com>
parents:
diff changeset
52 msg = '*** [alias] %s: command %s is unknown' % \
6aa1fae4c28a Add alias extension
Brendan Cully <brendan@kublai.com>
parents:
diff changeset
53 (self._name, self._target)
6aa1fae4c28a Add alias extension
Brendan Cully <brendan@kublai.com>
parents:
diff changeset
54 except AmbiguousCommand:
6aa1fae4c28a Add alias extension
Brendan Cully <brendan@kublai.com>
parents:
diff changeset
55 msg = '*** [alias] %s: command %s is ambiguous' % \
6aa1fae4c28a Add alias extension
Brendan Cully <brendan@kublai.com>
parents:
diff changeset
56 (self._name, self._target)
6aa1fae4c28a Add alias extension
Brendan Cully <brendan@kublai.com>
parents:
diff changeset
57 except RecursiveCommand:
6aa1fae4c28a Add alias extension
Brendan Cully <brendan@kublai.com>
parents:
diff changeset
58 msg = '*** [alias] %s: circular dependency on %s' % \
6aa1fae4c28a Add alias extension
Brendan Cully <brendan@kublai.com>
parents:
diff changeset
59 (self._name, self._target)
6aa1fae4c28a Add alias extension
Brendan Cully <brendan@kublai.com>
parents:
diff changeset
60 def nocmd(*args, **opts):
6aa1fae4c28a Add alias extension
Brendan Cully <brendan@kublai.com>
parents:
diff changeset
61 self._ui.warn(msg + '\n')
6aa1fae4c28a Add alias extension
Brendan Cully <brendan@kublai.com>
parents:
diff changeset
62 return 1
6aa1fae4c28a Add alias extension
Brendan Cully <brendan@kublai.com>
parents:
diff changeset
63 nocmd.__doc__ = msg
6aa1fae4c28a Add alias extension
Brendan Cully <brendan@kublai.com>
parents:
diff changeset
64 self._cmd = (nocmd, [], '')
6aa1fae4c28a Add alias extension
Brendan Cully <brendan@kublai.com>
parents:
diff changeset
65 commands.norepo += ' %s' % self._name
6aa1fae4c28a Add alias extension
Brendan Cully <brendan@kublai.com>
parents:
diff changeset
66
6aa1fae4c28a Add alias extension
Brendan Cully <brendan@kublai.com>
parents:
diff changeset
67 def uisetup(ui):
6aa1fae4c28a Add alias extension
Brendan Cully <brendan@kublai.com>
parents:
diff changeset
68 for cmd, target in ui.configitems('alias'):
6aa1fae4c28a Add alias extension
Brendan Cully <brendan@kublai.com>
parents:
diff changeset
69 if not target:
6aa1fae4c28a Add alias extension
Brendan Cully <brendan@kublai.com>
parents:
diff changeset
70 ui.warn('*** [alias] %s: no definition\n' % cmd)
6aa1fae4c28a Add alias extension
Brendan Cully <brendan@kublai.com>
parents:
diff changeset
71 continue
6aa1fae4c28a Add alias extension
Brendan Cully <brendan@kublai.com>
parents:
diff changeset
72 args = target.split(' ')
6aa1fae4c28a Add alias extension
Brendan Cully <brendan@kublai.com>
parents:
diff changeset
73 tcmd = args.pop(0)
6aa1fae4c28a Add alias extension
Brendan Cully <brendan@kublai.com>
parents:
diff changeset
74 if args:
4964
a28661788f2f test-alias: Removed fallback to parentui, no longer needed since 10afa3fab6b4
Thomas Arendsen Hein <thomas@intevation.de>
parents: 4808
diff changeset
75 ui.setconfig('defaults', cmd, ' '.join(args))
4801
6aa1fae4c28a Add alias extension
Brendan Cully <brendan@kublai.com>
parents:
diff changeset
76 cmdtable[cmd] = lazycommand(ui, cmd, tcmd)