ebd14c67af
git-svn-id: svn://svn.cy55.de/Zope3/src/cybertools/trunk@3593 fd906abe-77d9-0310-91a1-e0d9ade77398
87 lines
2.2 KiB
Python
87 lines
2.2 KiB
Python
#
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# Copyright (c) 2009 Helmut Merz helmutm@cy55.de
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#
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# This program is free software; you can redistribute it and/or modify
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# it under the terms of the GNU General Public License as published by
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# the Free Software Foundation; either version 2 of the License, or
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# (at your option) any later version.
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#
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# This program is distributed in the hope that it will be useful,
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# but WITHOUT ANY WARRANTY; without even the implied warranty of
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# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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# GNU General Public License for more details.
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#
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# You should have received a copy of the GNU General Public License
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# along with this program; if not, write to the Free Software
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# Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
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#
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"""
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Plug-in management.
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$Id$
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"""
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import os, sys, time
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from zope import component
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class PluginModule(object):
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def __init__(self, module):
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self.name = module.__name__
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self.module = module
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self.timeStamp = time.time()
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self.functions = dict()
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self.interfaces = dict()
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def registerFunction(self, f, name, ifc):
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self.functions[name] = f
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self.interfaces[name] = ifc
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modules = dict()
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def registerModule(m):
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pm = PluginModule(m)
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modules[m.__name__] = pm
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return pm
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def registerFunction(wrapped, base, ifc):
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m = sys.modules[base.__module__]
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pm = modules.get(m.__name__)
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if pm:
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if base.__name__ in pm.functions:
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ifcOld = pm.interfaces[base.__name__]
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if ifcOld:
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gsm = component.getGlobalSiteManager()
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gsm.unregisterHandler(pm.functions[base.__name__], ifcOld)
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if pm is None or pm.module != m:
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pm = registerModule(m)
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pm.registerFunction(wrapped, base.__name__, ifc)
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if ifc:
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component.provideHandler(wrapped, ifc)
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# automatic reloading
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def checkReload(m):
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if isinstance(m, str):
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m = sys.modules[m]
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fpath, ext = os.path.splitext(os.path.abspath(m.__file__))
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src = fpath + '.py'
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pm = modules[m.__name__]
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mtime = pm.timeStamp
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if os.path.getmtime(src) > mtime:
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m = reload(m)
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pm.timeStamp = time.time()
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return m
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return False
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def loadModules(*mods):
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for m in mods:
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checkReload(m)
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