Mercurial > hg > mercurial-crew-with-dirclash
view 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 |
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# Copyright (C) 2007 Brendan Cully <brendan@kublai.com> # This file is published under the GNU GPL. '''allow user-defined command aliases To use, create entries in your hgrc of the form [alias] mycmd = cmd --args ''' from mercurial.cmdutil import findcmd, UnknownCommand, AmbiguousCommand from mercurial import commands cmdtable = {} class RecursiveCommand(Exception): pass class lazycommand(object): '''defer command lookup until needed, so that extensions loaded after alias can be aliased''' def __init__(self, ui, name, target): self._ui = ui self._name = name self._target = target self._cmd = None def __len__(self): self._resolve() return len(self._cmd) def __getitem__(self, key): self._resolve() return self._cmd[key] def __iter__(self): self._resolve() return self._cmd.__iter__() def _resolve(self): if self._cmd is not None: return try: self._cmd = findcmd(self._ui, self._target, commands.table)[1] if self._cmd == self: raise RecursiveCommand() if self._target in commands.norepo.split(' '): commands.norepo += ' %s' % self._name return except UnknownCommand: msg = '*** [alias] %s: command %s is unknown' % \ (self._name, self._target) except AmbiguousCommand: msg = '*** [alias] %s: command %s is ambiguous' % \ (self._name, self._target) except RecursiveCommand: msg = '*** [alias] %s: circular dependency on %s' % \ (self._name, self._target) def nocmd(*args, **opts): self._ui.warn(msg + '\n') return 1 nocmd.__doc__ = msg self._cmd = (nocmd, [], '') commands.norepo += ' %s' % self._name def uisetup(ui): for cmd, target in ui.configitems('alias'): if not target: ui.warn('*** [alias] %s: no definition\n' % cmd) continue args = target.split(' ') tcmd = args.pop(0) if args: ui.setconfig('defaults', cmd, ' '.join(args)) cmdtable[cmd] = lazycommand(ui, cmd, tcmd)