Mercurial > hg
view mercurial/extensions.py @ 10092:f1bf64abcb1b stable
doc/Makefile: Fix rst2html detection
Displaying the output from the failing call to "which" didn't prevent
make from doing stupid things later. We now only search for "rst2html"
and fallback to "rst2html.py". If neither name is found, make will
eventually abort when we try to use $(RST2HTML).
author | Mads Kiilerich <mads@kiilerich.com> |
---|---|
date | Wed, 16 Dec 2009 23:59:50 +0100 |
parents | a1943c2a4661 |
children | 25e572394f5c |
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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 version 2, incorporated herein by reference. import imp, os import util, cmdutil, help from i18n import _, gettext _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 loadpath(path, module_name): module_name = module_name.replace('.', '_') path = util.expandpath(path) if os.path.isdir(path): # module/__init__.py style d, f = os.path.split(path.rstrip('/')) fd, fpath, desc = imp.find_module(f, [d]) return imp.load_module(module_name, fd, fpath, desc) else: return imp.load_source(module_name, path) def load(ui, name, path): # unused ui argument kept for backwards compatibility if name.startswith('hgext.') or 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 mod = loadpath(path, 'hgext.%s' % name) 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) def loadall(ui): result = ui.configitems("extensions") newindex = len(_order) for (name, path) in result: if path: if path[0] == '!': continue try: load(ui, name, path) except 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.traceback(): return 1 for name in _order[newindex:]: uisetup = getattr(_extensions[name], 'uisetup', None) if uisetup: uisetup(ui) for name in _order[newindex:]: extsetup = getattr(_extensions[name], 'extsetup', None) if extsetup: try: extsetup(ui) except TypeError: if extsetup.func_code.co_argcount != 0: raise extsetup() # old extsetup with no ui argument def wrapcommand(table, command, wrapper): aliases, entry = cmdutil.findcmd(command, table) for alias, e in table.iteritems(): if e is entry: key = alias break origfn = entry[0] def wrap(*args, **kwargs): return util.checksignature(wrapper)( util.checksignature(origfn), *args, **kwargs) wrap.__doc__ = getattr(origfn, '__doc__') wrap.__module__ = getattr(origfn, '__module__') newentry = list(entry) newentry[0] = wrap table[key] = tuple(newentry) return entry def wrapfunction(container, funcname, wrapper): def wrap(*args, **kwargs): return wrapper(origfn, *args, **kwargs) origfn = getattr(container, funcname) setattr(container, funcname, wrap) return origfn def disabled(): '''find disabled extensions from hgext returns a dict of {name: desc}, and the max name length''' import hgext extpath = os.path.dirname(os.path.abspath(hgext.__file__)) try: # might not be a filesystem path files = os.listdir(extpath) except OSError: return None, 0 exts = {} maxlength = 0 for e in files: if e.endswith('.py'): name = e.rsplit('.', 1)[0] path = os.path.join(extpath, e) else: name = e path = os.path.join(extpath, e, '__init__.py') if not os.path.exists(path): continue if name in exts or name in _order or name == '__init__': continue try: file = open(path) except IOError: continue else: doc = help.moduledoc(file) file.close() if doc: # extracting localized synopsis exts[name] = gettext(doc).splitlines()[0] else: exts[name] = _('(no help text available)') if len(name) > maxlength: maxlength = len(name) return exts, maxlength def enabled(): '''return a dict of {name: desc} of extensions, and the max name length''' exts = {} maxlength = 0 for ename, ext in extensions(): doc = (gettext(ext.__doc__) or _('(no help text available)')) ename = ename.split('.')[-1] maxlength = max(len(ename), maxlength) exts[ename] = doc.splitlines()[0].strip() return exts, maxlength