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jfr.im git - erebus.git/blob - ctlmod.py
1 # Erebus IRC bot - Author: John Runyon
2 # module loading/unloading/tracking code
10 def isloaded(modname
): return modname
in modules
11 def modhas(modname
, attname
): return getattr(modules
[modname
], attname
, None) is not None
13 def load(parent
, modname
):
14 if not isloaded(modname
):
15 mod
= __import__(modname
)
18 if not hasattr(mod
, 'modinfo'):
19 return modlib
.error('no modinfo')
21 if 1 not in mod
.modinfo
['compatible']:
22 return modlib
.error('API-incompatible')
24 modules
[modname
] = mod
25 dependents
[modname
] = []
27 for dep
in mod
.modinfo
['depends']:
28 if dep
not in modules
:
29 depret
= load(parent
, dep
)
32 dependents
[dep
].append(modname
)
35 ret
= mod
.modstart(parent
)
36 if ret
is not None and not ret
:
38 del dependents
[modname
]
39 for dep
in mod
.modinfo
['depends']:
40 dependents
[dep
].remove(modname
)
42 else: #if not isloaded...else:
43 return modlib
.error('already loaded')
45 def unload(parent
, modname
):
47 for dependent
in dependents
[modname
]:
48 unload(parent
, dependent
)
49 for dep
in dependents
[modname
]:
50 dependents
[dep
].remove(modname
)
51 ret
= modules
[modname
].modstop(parent
)
55 return modlib
.error('already unloaded')
57 def reloadmod(parent
, modname
):
59 if modhas(modname
, 'modrestart'): modules
[modname
].modrestart(parent
)
60 else: modules
[modname
].modstop(parent
)
62 reload(modules
[modname
])
64 if modhas(modname
, 'modrestarted'): modules
[modname
].modrestarted(parent
)
65 else: modules
[modname
].modstart(parent
)
70 def loadall(parent
, modlist
):
71 for m
in modlist
: load(parent
, m
)
72 def unloadall(parent
, modlist
):
73 for m
in modlist
: unload(parent
, m
)
74 def reloadall(parent
, modlist
):
75 for m
in modlist
: reloadmod(parent
, m
)
77 sys
.path
.append('modules')