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Commit | Line | Data |
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931c88a4 | 1 | # Erebus IRC bot - Author: John Runyon |
2 | # module loading/unloading/tracking code | |
3 | ||
b9c6eb1d | 4 | import sys, time |
e4255e70 | 5 | import modlib |
db50981b | 6 | |
7 | modules = {} | |
e4255e70 | 8 | dependents = {} |
a8553c45 | 9 | #dependents[modname] = [list of modules which depend on modname] |
db50981b | 10 | |
11 | def isloaded(modname): return modname in modules | |
d431e543 | 12 | def modhas(modname, attname): return getattr(modules[modname], attname, None) is not None |
db50981b | 13 | |
b9c6eb1d | 14 | def load(parent, modname, dependent=False): |
15 | #wrapper to call _load and print return | |
16 | if dependent: | |
a8553c45 | 17 | print "(Loading dependency %s..." % (modname), |
b9c6eb1d | 18 | else: |
a8553c45 | 19 | print "%09.3f [MOD] [?] Loading %s..." % (time.time() % 100000, modname), |
b9c6eb1d | 20 | modstatus = _load(parent, modname, dependent) |
21 | if not modstatus: | |
22 | print str(modstatus) | |
23 | elif modstatus == True: | |
24 | if dependent: | |
a8553c45 | 25 | print "OK)", |
b9c6eb1d | 26 | else: |
27 | print "OK." | |
28 | else: | |
29 | print modstatus | |
30 | return modstatus | |
31 | ||
32 | def _load(parent, modname, dependent=False): | |
db50981b | 33 | if not isloaded(modname): |
96d0b31e | 34 | try: |
83ed3882 | 35 | mod = __import__('modules.'+modname, globals(), locals(), ['*'], -1) |
36 | # ^ fromlist doesn't actually do anything(?) but it means we don't have to worry about this returning the top-level "modules" object | |
8ba56606 | 37 | reload(mod) #in case it's been previously loaded. |
83ed3882 | 38 | except Exception as e: |
96d0b31e | 39 | return modlib.error(e) |
20df9fbb | 40 | |
e4255e70 | 41 | |
6b2c681d | 42 | if not hasattr(mod, 'modinfo'): |
43 | return modlib.error('no modinfo') | |
44 | ||
a76c4bd8 | 45 | if parent.APIVERSION not in mod.modinfo['compatible']: |
e4255e70 | 46 | return modlib.error('API-incompatible') |
47 | ||
db50981b | 48 | modules[modname] = mod |
e4255e70 | 49 | dependents[modname] = [] |
50 | ||
51 | for dep in mod.modinfo['depends']: | |
52 | if dep not in modules: | |
b9c6eb1d | 53 | depret = load(parent, dep, dependent=True) |
a8553c45 | 54 | if depret is not None and not depret: |
55 | return depret #TODO FIXME | |
e4255e70 | 56 | dependents[dep].append(modname) |
57 | ||
58 | ||
db50981b | 59 | ret = mod.modstart(parent) |
e4255e70 | 60 | if ret is not None and not ret: |
db50981b | 61 | del modules[modname] |
e4255e70 | 62 | del dependents[modname] |
63 | for dep in mod.modinfo['depends']: | |
64 | dependents[dep].remove(modname) | |
db50981b | 65 | return ret |
e4255e70 | 66 | else: #if not isloaded...else: |
67 | return modlib.error('already loaded') | |
db50981b | 68 | |
69 | def unload(parent, modname): | |
70 | if isloaded(modname): | |
e4255e70 | 71 | for dependent in dependents[modname]: |
72 | unload(parent, dependent) | |
a8553c45 | 73 | for dep in modules[modname].modinfo['depends']: |
e4255e70 | 74 | dependents[dep].remove(modname) |
5a81c82b | 75 | ret = modules[modname].modstop(parent) |
76 | del modules[modname] | |
77 | return ret | |
db50981b | 78 | else: |
e4255e70 | 79 | return modlib.error('already unloaded') |
db50981b | 80 | |
81 | def reloadmod(parent, modname): | |
82 | if isloaded(modname): | |
d431e543 | 83 | if modhas(modname, 'modrestart'): modules[modname].modrestart(parent) |
84 | else: modules[modname].modstop(parent) | |
db50981b | 85 | |
e3878612 | 86 | try: |
65b86c90 | 87 | reload(modules[modname]) |
96d0b31e | 88 | except BaseException as e: |
e3878612 | 89 | return modlib.error(e) |
db50981b | 90 | |
8ba56606 | 91 | if modhas(modname, 'modrestarted'): ret = modules[modname].modrestarted(parent) |
92 | else: ret = modules[modname].modstart(parent) | |
db50981b | 93 | |
8ba56606 | 94 | return ret |
db50981b | 95 | else: |
e3878612 | 96 | return load(parent, modname) |
97 | ||
db50981b | 98 | |
99 | def loadall(parent, modlist): | |
100 | for m in modlist: load(parent, m) | |
101 | def unloadall(parent, modlist): | |
102 | for m in modlist: unload(parent, m) | |
103 | def reloadall(parent, modlist): | |
104 | for m in modlist: reloadmod(parent, m) |