Mercurial > hg
view mercurial/extensions.py @ 5113:d5126a0172ba
merge with crew-stable
author | Thomas Arendsen Hein <thomas@intevation.de> |
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date | Sat, 04 Aug 2007 22:27:52 +0200 |
parents | af0995261f02 |
children | 3edd6fedc33a |
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# extensions.py - extension handling for mercurial # # Copyright 2005-2007 Matt Mackall <mpm@selenic.com> # # This software may be used and distributed according to the terms # of the GNU General Public License, incorporated herein by reference. import imp, os import util, sys from i18n import _ _extensions = {} commandtable = {} setuphooks = [] def find(name): '''return module with given extension name''' try: return _extensions[name] except KeyError: for k, v in _extensions.iteritems(): if k.endswith('.' + name) or k.endswith('/' + name): return v raise KeyError(name) def load(ui, name, path): if name.startswith('hgext.'): shortname = name[6:] else: shortname = name if shortname in _extensions: return if path: # the module will be loaded in sys.modules # choose an unique name so that it doesn't # conflicts with other modules module_name = "hgext_%s" % name.replace('.', '_') if os.path.isdir(path): # module/__init__.py style d, f = os.path.split(path) fd, fpath, desc = imp.find_module(f, [d]) mod = imp.load_module(module_name, fd, fpath, desc) else: mod = imp.load_source(module_name, path) else: def importh(name): mod = __import__(name) components = name.split('.') for comp in components[1:]: mod = getattr(mod, comp) return mod try: mod = importh("hgext.%s" % name) except ImportError: mod = importh(name) _extensions[shortname] = mod uisetup = getattr(mod, 'uisetup', None) if uisetup: uisetup(ui) reposetup = getattr(mod, 'reposetup', None) if reposetup: setuphooks.append(reposetup) cmdtable = getattr(mod, 'cmdtable', {}) overrides = [cmd for cmd in cmdtable if cmd in commandtable] if overrides: ui.warn(_("extension '%s' overrides commands: %s\n") % (name, " ".join(overrides))) commandtable.update(cmdtable) def loadall(ui): result = ui.configitems("extensions") for i, (name, path) in enumerate(result): if path: path = os.path.expanduser(path) try: load(ui, name, path) except (util.SignalInterrupt, KeyboardInterrupt): raise except Exception, inst: ui.warn(_("*** failed to import extension %s: %s\n") % (name, inst)) if ui.print_exc(): return 1