hgext/zeroconf/__init__.py: Separate relative and absolute imports.
2to3 complains when relative and absolute imports are mixed, this fix just
separates them on the zeroconf extension. According to 2to3, the other modules
are fine.
# 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 or any later version.
import imp, os
import util, cmdutil, help, error
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 _disabledpaths(strip_init=False):
'''find paths of disabled extensions. returns a dict of {name: path}
removes /__init__.py from packages if strip_init is True'''
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 {}
exts = {}
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 strip_init:
path = os.path.dirname(path)
if name in exts or name in _order or name == '__init__':
continue
exts[name] = path
return exts
def _disabledhelp(path):
'''retrieve help synopsis of a disabled extension (without importing)'''
try:
file = open(path)
except IOError:
return
else:
doc = help.moduledoc(file)
file.close()
if doc: # extracting localized synopsis
return gettext(doc).splitlines()[0]
else:
return _('(no help text available)')
def disabled():
'''find disabled extensions from hgext
returns a dict of {name: desc}, and the max name length'''
paths = _disabledpaths()
if not paths:
return None, 0
exts = {}
maxlength = 0
for name, path in paths.iteritems():
doc = _disabledhelp(path)
if not doc:
continue
exts[name] = doc
if len(name) > maxlength:
maxlength = len(name)
return exts, maxlength
def disabledext(name):
'''find a specific disabled extension from hgext. returns desc'''
paths = _disabledpaths()
if name in paths:
return _disabledhelp(paths[name])
def disabledcmd(cmd, strict=False):
'''import disabled extensions until cmd is found.
returns (cmdname, extname, doc)'''
paths = _disabledpaths(strip_init=True)
if not paths:
raise error.UnknownCommand(cmd)
def findcmd(cmd, name, path):
try:
mod = loadpath(path, 'hgext.%s' % name)
except Exception:
return
try:
aliases, entry = cmdutil.findcmd(cmd,
getattr(mod, 'cmdtable', {}), strict)
except (error.AmbiguousCommand, error.UnknownCommand):
return
for c in aliases:
if c.startswith(cmd):
cmd = c
break
else:
cmd = aliases[0]
return (cmd, name, mod)
# first, search for an extension with the same name as the command
path = paths.pop(cmd, None)
if path:
ext = findcmd(cmd, cmd, path)
if ext:
return ext
# otherwise, interrogate each extension until there's a match
for name, path in paths.iteritems():
ext = findcmd(cmd, name, path)
if ext:
return ext
raise error.UnknownCommand(cmd)
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