Mercurial > hg
view mercurial/extensions.py @ 6896:40690d614ce6
store: take opener as an argument
author | Matt Mackall <mpm@selenic.com> |
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date | Wed, 13 Aug 2008 20:18:42 -0500 |
parents | e75aab656f46 |
children | 7da76778dbd7 |
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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 from i18n import _ _extensions = {} _order = [] def extensions(): for name in _order: module = _extensions[name] if module: yield name, module 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 _extensions[shortname] = None 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 _order.append(shortname) uisetup = getattr(mod, 'uisetup', None) if uisetup: uisetup(ui) def loadall(ui): result = ui.configitems("extensions") for i, (name, path) in enumerate(result): if path: if path[0] == '!': continue path = os.path.expanduser(path) try: load(ui, name, path) except (util.SignalInterrupt, KeyboardInterrupt): raise except Exception, inst: if path: ui.warn(_("*** failed to import extension %s from %s: %s\n") % (name, path, inst)) else: ui.warn(_("*** failed to import extension %s: %s\n") % (name, inst)) if ui.print_exc(): return 1