Mercurial > hg > mercurial-crew-with-dirclash

annotate mercurial/extensions.py @ 5432:0d154bce2341

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osutil: Solaris build fix
author Bryan O'Sullivan <bos@serpentine.com>
date Tue, 09 Oct 2007 08:39:37 -0700
parents 60acf1432ee0
children b12432b1c2c7
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1 # extensions.py - extension handling for mercurial
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2 #
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3 # Copyright 2005-2007 Matt Mackall <mpm@selenic.com>
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4 #
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5 # This software may be used and distributed according to the terms
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6 # of the GNU General Public License, incorporated herein by reference.
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7
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8 import imp, os
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9 import util, sys
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10 from i18n import _
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11
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12 _extensions = {}
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13 _order = []
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14
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15 def extensions():
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16 for name in _order:
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17 module = _extensions[name]
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18 if module:
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19 yield name, module
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20
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21 def find(name):
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22 '''return module with given extension name'''
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23 try:
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24 return _extensions[name]
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25 except KeyError:
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26 for k, v in _extensions.iteritems():
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27 if k.endswith('.' + name) or k.endswith('/' + name):
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28 return v
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29 raise KeyError(name)
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30
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31 def load(ui, name, path):
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32 if name.startswith('hgext.'):
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33 shortname = name[6:]
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34 else:
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35 shortname = name
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36 if shortname in _extensions:
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37 return
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38 _extensions[shortname] = None
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39 if path:
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40 # the module will be loaded in sys.modules
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41 # choose an unique name so that it doesn't
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42 # conflicts with other modules
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43 module_name = "hgext_%s" % name.replace('.', '_')
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44 if os.path.isdir(path):
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45 # module/__init__.py style
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46 d, f = os.path.split(path)
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47 fd, fpath, desc = imp.find_module(f, [d])
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48 mod = imp.load_module(module_name, fd, fpath, desc)
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49 else:
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50 mod = imp.load_source(module_name, path)
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51 else:
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52 def importh(name):
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53 mod = __import__(name)
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54 components = name.split('.')
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55 for comp in components[1:]:
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56 mod = getattr(mod, comp)
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57 return mod
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58 try:
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59 mod = importh("hgext.%s" % name)
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60 except ImportError:
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61 mod = importh(name)
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62 _extensions[shortname] = mod
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63 _order.append(shortname)
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64
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65 uisetup = getattr(mod, 'uisetup', None)
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66 if uisetup:
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67 uisetup(ui)
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68
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69 def loadall(ui):
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70 result = ui.configitems("extensions")
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71 for i, (name, path) in enumerate(result):
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72 if path:
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73 path = os.path.expanduser(path)
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74 try:
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75 load(ui, name, path)
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76 except (util.SignalInterrupt, KeyboardInterrupt):
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77 raise
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78 except Exception, inst:
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79 ui.warn(_("*** failed to import extension %s: %s\n") %
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80 (name, inst))
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81 if ui.print_exc():
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82 return 1
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83