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comparison upmana/mercurial/demandimport.py @ 135:dcf4fbe09b70 beta

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Traipse Beta 'OpenRPG' {091010-00} Traipse is a distribution of OpenRPG that is designed to be easy to setup and go. Traipse also makes it easy for developers to work on code without fear of sacrifice. 'Ornery-Orc' continues the trend of 'Grumpy' and adds fixes to the code. 'Ornery-Orc's main goal is to offer more advanced features and enhance the productivity of the user. Update Summary (Beta) Added Bookmarks Fix to Remote Admin Commands Minor fix to text based Server Fix to Pretty Print, from Core Fix to Splitter Nodes not being created Fix to massive amounts of images loading, from Core Added 'boot' command to remote admin Added confirmation window for sent nodes Minor changes to allow for portability to an OpenSUSE linux OS Miniatures Layer pop up box allows users to turn off Mini labels, from FlexiRPG Zoom Mouse plugin added Images added to Plugin UI Switching to Element Tree Map efficiency, from FlexiRPG Added Status Bar to Update Manager default_manifest.xml renamed to default_upmana.xml Cleaner clode for saved repositories New TrueDebug Class in orpg_log (See documentation for usage) Mercurial's hgweb folder is ported to upmana **Pretty important update that can help remove thousands of dead children from your gametree. **Children, <forms />, <group_atts />, <horizontal />, <cols />, <rows />, <height />, etc... are all tags now. Check your gametree and look for dead children!! **New Gamtree Recusion method, mapping, and context sensitivity. !!Alpha - Watch out for infinite loops!!
author sirebral
date Tue, 10 Nov 2009 14:11:28 -0600
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101:394ebb3b6a0f 135:dcf4fbe09b70
1 # demandimport.py - global demand-loading of modules for Mercurial
2 #
3 # Copyright 2006, 2007 Matt Mackall <mpm@selenic.com>
4 #
5 # This software may be used and distributed according to the terms of the
6 # GNU General Public License version 2, incorporated herein by reference.
7
8 '''
9 demandimport - automatic demandloading of modules
10
11 To enable this module, do:
12
13 import demandimport; demandimport.enable()
14
15 Imports of the following forms will be demand-loaded:
16
17 import a, b.c
18 import a.b as c
19 from a import b,c # a will be loaded immediately
20
21 These imports will not be delayed:
22
23 from a import *
24 b = __import__(a)
25 '''
26
27 import __builtin__
28 _origimport = __import__
29
30 class _demandmod(object):
31 """module demand-loader and proxy"""
32 def __init__(self, name, globals, locals):
33 if '.' in name:
34 head, rest = name.split('.', 1)
35 after = [rest]
36 else:
37 head = name
38 after = []
39 object.__setattr__(self, "_data", (head, globals, locals, after))
40 object.__setattr__(self, "_module", None)
41 def _extend(self, name):
42 """add to the list of submodules to load"""
43 self._data[3].append(name)
44 def _load(self):
45 if not self._module:
46 head, globals, locals, after = self._data
47 mod = _origimport(head, globals, locals)
48 # load submodules
49 def subload(mod, p):
50 h, t = p, None
51 if '.' in p:
52 h, t = p.split('.', 1)
53 if not hasattr(mod, h):
54 setattr(mod, h, _demandmod(p, mod.__dict__, mod.__dict__))
55 elif t:
56 subload(getattr(mod, h), t)
57
58 for x in after:
59 subload(mod, x)
60
61 # are we in the locals dictionary still?
62 if locals and locals.get(head) == self:
63 locals[head] = mod
64 object.__setattr__(self, "_module", mod)
65
66 def __repr__(self):
67 if self._module:
68 return "<proxied module '%s'>" % self._data[0]
69 return "<unloaded module '%s'>" % self._data[0]
70 def __call__(self, *args, **kwargs):
71 raise TypeError("%s object is not callable" % repr(self))
72 def __getattribute__(self, attr):
73 if attr in ('_data', '_extend', '_load', '_module'):
74 return object.__getattribute__(self, attr)
75 self._load()
76 return getattr(self._module, attr)
77 def __setattr__(self, attr, val):
78 self._load()
79 setattr(self._module, attr, val)
80
81 def _demandimport(name, globals=None, locals=None, fromlist=None, level=None):
82 if not locals or name in ignore or fromlist == ('*',):
83 # these cases we can't really delay
84 return _origimport(name, globals, locals, fromlist)
85 elif not fromlist:
86 # import a [as b]
87 if '.' in name: # a.b
88 base, rest = name.split('.', 1)
89 # email.__init__ loading email.mime
90 if globals and globals.get('__name__', None) == base:
91 return _origimport(name, globals, locals, fromlist)
92 # if a is already demand-loaded, add b to its submodule list
93 if base in locals:
94 if isinstance(locals[base], _demandmod):
95 locals[base]._extend(rest)
96 return locals[base]
97 return _demandmod(name, globals, locals)
98 else:
99 if level is not None:
100 # from . import b,c,d or from .a import b,c,d
101 return _origimport(name, globals, locals, fromlist, level)
102 # from a import b,c,d
103 mod = _origimport(name, globals, locals)
104 # recurse down the module chain
105 for comp in name.split('.')[1:]:
106 if not hasattr(mod, comp):
107 setattr(mod, comp, _demandmod(comp, mod.__dict__, mod.__dict__))
108 mod = getattr(mod, comp)
109 for x in fromlist:
110 # set requested submodules for demand load
111 if not(hasattr(mod, x)):
112 setattr(mod, x, _demandmod(x, mod.__dict__, locals))
113 return mod
114
115 ignore = [
116 '_hashlib',
117 '_xmlplus',
118 'fcntl',
119 'win32com.gen_py',
120 'pythoncom',
121 # imported by tarfile, not available under Windows
122 'pwd',
123 'grp',
124 # imported by profile, itself imported by hotshot.stats,
125 # not available under Windows
126 'resource',
127 ]
128
129 def enable():
130 "enable global demand-loading of modules"
131 __builtin__.__import__ = _demandimport
132
133 def disable():
134 "disable global demand-loading of modules"
135 __builtin__.__import__ = _origimport
136