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dc23a7db18
A new function (extensions.extensions) allows the code that is interested in those attributes to handle them directly. This allows some cleanups of extensions.py. Notably, we can remove the extensions.commandtable hack. It also makes it easier to add standard extension attributes, like a "hgwebsetup" function or a "helptable" dict that augments the data in help.py, etc.
84 lines
2.4 KiB
Python
84 lines
2.4 KiB
Python
# extensions.py - extension handling for mercurial
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#
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# Copyright 2005-2007 Matt Mackall <mpm@selenic.com>
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#
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# This software may be used and distributed according to the terms
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# of the GNU General Public License, incorporated herein by reference.
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import imp, os
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import util, sys
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from i18n import _
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_extensions = {}
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_order = []
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def extensions():
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for name in _order:
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module = _extensions[name]
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if module:
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yield name, module
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def find(name):
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'''return module with given extension name'''
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try:
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return _extensions[name]
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except KeyError:
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for k, v in _extensions.iteritems():
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if k.endswith('.' + name) or k.endswith('/' + name):
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return v
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raise KeyError(name)
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def load(ui, name, path):
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if name.startswith('hgext.'):
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shortname = name[6:]
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else:
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shortname = name
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if shortname in _extensions:
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return
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_extensions[shortname] = None
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if path:
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# the module will be loaded in sys.modules
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# choose an unique name so that it doesn't
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# conflicts with other modules
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module_name = "hgext_%s" % name.replace('.', '_')
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if os.path.isdir(path):
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# module/__init__.py style
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d, f = os.path.split(path)
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fd, fpath, desc = imp.find_module(f, [d])
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mod = imp.load_module(module_name, fd, fpath, desc)
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else:
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mod = imp.load_source(module_name, path)
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else:
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def importh(name):
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mod = __import__(name)
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components = name.split('.')
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for comp in components[1:]:
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mod = getattr(mod, comp)
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return mod
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try:
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mod = importh("hgext.%s" % name)
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except ImportError:
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mod = importh(name)
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_extensions[shortname] = mod
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_order.append(shortname)
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uisetup = getattr(mod, 'uisetup', None)
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if uisetup:
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uisetup(ui)
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def loadall(ui):
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result = ui.configitems("extensions")
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for i, (name, path) in enumerate(result):
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if path:
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path = os.path.expanduser(path)
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try:
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load(ui, name, path)
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except (util.SignalInterrupt, KeyboardInterrupt):
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raise
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except Exception, inst:
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ui.warn(_("*** failed to import extension %s: %s\n") %
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(name, inst))
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if ui.print_exc():
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return 1
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