+# Erebus IRC bot - Author: John Runyon
+# module loading/unloading/tracking code
+
import sys
+import modlib
modules = {}
+dependents = {}
def isloaded(modname): return modname in modules
-def modhas(modname, attname): return getattr(self.modules[modname], attname, None) is not None
+def modhas(modname, attname): return getattr(modules[modname], attname, None) is not None
def load(parent, modname):
if not isloaded(modname):
mod = __import__(modname)
+ reload(mod)
+
+ if not hasattr(mod, 'modinfo'):
+ return modlib.error('no modinfo')
+
+ if 1 not in mod.modinfo['compatible']:
+ return modlib.error('API-incompatible')
+
modules[modname] = mod
+ dependents[modname] = []
+
+ for dep in mod.modinfo['depends']:
+ if dep not in modules:
+ depret = load(parent, dep)
+ if not depret:
+ return
+ dependents[dep].append(modname)
+
+
ret = mod.modstart(parent)
- if not ret:
+ if ret is not None and not ret:
del modules[modname]
+ del dependents[modname]
+ for dep in mod.modinfo['depends']:
+ dependents[dep].remove(modname)
return ret
- else:
- return -1
+ else: #if not isloaded...else:
+ return modlib.error('already loaded')
def unload(parent, modname):
if isloaded(modname):
- self.modules[modname].modstop(parent)
+ for dependent in dependents[modname]:
+ unload(parent, dependent)
+ for dep in dependents[modname]:
+ dependents[dep].remove(modname)
+ return modules[modname].modstop(parent)
else:
- return -1
+ return modlib.error('already unloaded')
def reloadmod(parent, modname):
if isloaded(modname):
- if modhas(modname, 'modrestart'): self.modules[modname].modrestart(parent)
- else: self.modules[modname].modstop(parent)
+ if modhas(modname, 'modrestart'): modules[modname].modrestart(parent)
+ else: modules[modname].modstop(parent)
- reload(self.modules[modname])
+ reload(modules[modname])
- if modhas(modname, 'modrestarted'): self.modules[modname].modrestarted(parent)
- else: self.modules[modname].modstart(parent)
+ if modhas(modname, 'modrestarted'): modules[modname].modrestarted(parent)
+ else: modules[modname].modstart(parent)
else:
load(parent, modname)