# Erebus IRC bot - Author: John Runyon
+# vim: fileencoding=utf-8
# module loading/unloading/tracking code
-import sys, time
+from __future__ import print_function
+
+import sys, time, importlib, traceback
import modlib
+if sys.version_info.major >= 3:
+ from importlib import reload # reload is only available as a global in Py2, only in importlib in Py3
+else:
+ importlib.invalidate_caches = lambda: None # invalidate_caches doesn't exist in Py2
+
modules = {}
dependents = {}
#dependents[modname] = [list of modules which depend on modname]
def modhas(modname, attname): return getattr(modules[modname], attname, None) is not None
def load(parent, modname, dependent=False):
- #wrapper to call _load and print return
+ """Wrapper to call _load and print the return value."""
if dependent:
- print "(Loading dependency %s..." % (modname),
+ print("(Loading dependency %s..." % (modname), end=' ')
else:
- print "%09.3f [MOD] [?] Loading %s..." % (time.time() % 100000, modname),
+ print("%09.3f [MOD] [?] Loading %s..." % (time.time() % 100000, modname), end=' ')
modstatus = _load(parent, modname, dependent)
if not modstatus:
if dependent:
- print "failed: %s)" % (modstatus),
+ print("failed: %s)" % (modstatus), end=' ')
else:
- print "failed: %s." % (modstatus)
+ print("failed: %s." % (modstatus))
+ if isinstance(modstatus, modlib.error) and isinstance(modstatus.errormsg, BaseException):
+ traceback.print_exception(modstatus.errormsg)
elif modstatus == True:
if dependent:
- print "OK)",
+ print("OK)", end=' ')
else:
- print "OK."
+ print("OK.")
else:
if dependent:
- print "OK: %s)" % (modstatus),
+ print("OK: %s)" % (modstatus), end=' ')
else:
- print "OK: %s." % (modstatus)
+ print("OK: %s." % (modstatus))
return modstatus
def _load(parent, modname, dependent=False):
+ """Load and return the new status of the module."""
successstatus = []
if not isloaded(modname):
+ importlib.invalidate_caches()
try:
- mod = __import__('modules.'+modname, globals(), locals(), ['*'], -1)
- # ^ fromlist doesn't actually do anything(?) but it means we don't have to worry about this returning the top-level "modules" object
+ mod = importlib.import_module('modules.'+modname)
reload(mod) #in case it's been previously loaded.
except Exception as e:
return modlib.error(e)
if bool(int(parent.cfg.get('autoloads', dep, default=1))):
if dep not in modules:
depret = load(parent, dep, dependent=True)
- if depret is not None:
- if not depret:
- successstatus.append("softdep %s failed" % (dep))
+ if depret is not None and not depret:
+ successstatus.append("softdep %s failed" % (dep))
else:
successstatus.append("softdep %s disabled" % (dep))
#swallow errors loading - softdeps are preferred, not required
- ret = mod.modstart(parent)
+ try:
+ ret = mod.modstart(parent)
+ except Exception as e:
+ return modlib.error(e)
if ret is None:
ret = True
if not ret: