Mercurial > public > mercurial-scm > hg-stable

annotate mercurial/extensions.py @ 9020:609b803dd252

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extensions: remove dead code enabled used to be a boolean, and somehow that bit of code inadvertently slipped through during a refactoring. Effectively dead code, as the condition can never be triggered.
author C?dric Duval <cedricduval@free.fr>
date Sat, 04 Jul 2009 12:06:33 +0200
parents 119d1f664eae
children 31177742f54a
Ignore whitespace changes - Everywhere: Within whitespace: At end of lines:
rev   line source
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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 of the
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6 # GNU General Public License version 2, incorporated herein by reference.
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7
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8 import imp, os
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9 import util, cmdutil, help
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10 from i18n import _, gettext
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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 loadpath(path, module_name):
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32 module_name = module_name.replace('.', '_')
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33 path = os.path.expanduser(path)
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34 if os.path.isdir(path):
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35 # module/__init__.py style
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36 d, f = os.path.split(path.rstrip('/'))
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37 fd, fpath, desc = imp.find_module(f, [d])
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38 return imp.load_module(module_name, fd, fpath, desc)
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39 else:
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40 return imp.load_source(module_name, path)
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41
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42 def load(ui, name, path):
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43 if name.startswith('hgext.') or name.startswith('hgext/'):
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44 shortname = name[6:]
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45 else:
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46 shortname = name
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47 if shortname in _extensions:
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48 return
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49 _extensions[shortname] = None
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50 if path:
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51 # the module will be loaded in sys.modules
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52 # choose an unique name so that it doesn't
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53 # conflicts with other modules
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54 mod = loadpath(path, 'hgext.%s' % name)
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55 else:
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56 def importh(name):
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57 mod = __import__(name)
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58 components = name.split('.')
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59 for comp in components[1:]:
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60 mod = getattr(mod, comp)
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61 return mod
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62 try:
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63 mod = importh("hgext.%s" % name)
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64 except ImportError:
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65 mod = importh(name)
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66 _extensions[shortname] = mod
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67 _order.append(shortname)
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68
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69 uisetup = getattr(mod, 'uisetup', None)
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70 if uisetup:
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71 uisetup(ui)
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72
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73 def loadall(ui):
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74 result = ui.configitems("extensions")
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75 for (name, path) in result:
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76 if path:
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77 if path[0] == '!':
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78 continue
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79 try:
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80 load(ui, name, path)
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81 except KeyboardInterrupt:
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82 raise
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83 except Exception, inst:
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84 if path:
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85 ui.warn(_("*** failed to import extension %s from %s: %s\n")
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86 % (name, path, inst))
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87 else:
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88 ui.warn(_("*** failed to import extension %s: %s\n")
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89 % (name, inst))
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90 if ui.traceback():
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91 return 1
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92
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93 def wrapcommand(table, command, wrapper):
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94 aliases, entry = cmdutil.findcmd(command, table)
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95 for alias, e in table.iteritems():
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96 if e is entry:
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97 key = alias
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98 break
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99
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100 origfn = entry[0]
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101 def wrap(*args, **kwargs):
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102 return util.checksignature(wrapper)(
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103 util.checksignature(origfn), *args, **kwargs)
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104
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105 wrap.__doc__ = getattr(origfn, '__doc__')
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106 wrap.__module__ = getattr(origfn, '__module__')
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107
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108 newentry = list(entry)
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109 newentry[0] = wrap
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110 table[key] = tuple(newentry)
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111 return entry
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112
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113 def wrapfunction(container, funcname, wrapper):
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114 def wrap(*args, **kwargs):
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115 return wrapper(origfn, *args, **kwargs)
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116
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117 origfn = getattr(container, funcname)
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118 setattr(container, funcname, wrap)
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119 return origfn
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120
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121 def disabled():
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122 '''find disabled extensions from hgext
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123 returns a dict of {name: desc}, and the max name length'''
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124
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125 import hgext
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126 extpath = os.path.dirname(os.path.abspath(hgext.__file__))
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127
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128 try: # might not be a filesystem path
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129 files = os.listdir(extpath)
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130 except OSError:
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131 return None, 0
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132
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133 exts = {}
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134 maxlength = 0
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135 for e in files:
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136
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137 if e.endswith('.py'):
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138 name = e.rsplit('.', 1)[0]
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139 path = os.path.join(extpath, e)
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140 else:
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141 name = e
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142 path = os.path.join(extpath, e, '__init__.py')
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143 if not os.path.exists(path):
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144 continue
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145
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146 if name in exts or name in _order or name == '__init__':
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147 continue
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148
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149 try:
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150 file = open(path)
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151 except IOError:
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152 continue
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153 else:
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154 doc = help.moduledoc(file)
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155 file.close()
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156
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157 if doc: # extracting localized synopsis
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158 exts[name] = gettext(doc).splitlines()[0]
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159 else:
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160 exts[name] = _('(no help text available)')
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161
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162 if len(name) > maxlength:
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diff changeset
163 maxlength = len(name)
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parents: 8225
diff changeset
164
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165 return exts, maxlength
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diff changeset
166
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diff changeset
167 def enabled():
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168 '''return a dict of {name: desc} of extensions, and the max name length'''
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diff changeset
169 exts = {}
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diff changeset
170 maxlength = 0
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C?dric Duval <cedricduval@free.fr>
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diff changeset
171 exthelps = []
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C?dric Duval <cedricduval@free.fr>
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diff changeset
172 for ename, ext in extensions():
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diff changeset
173 doc = (gettext(ext.__doc__) or _('(no help text available)'))
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parents: 8225
diff changeset
174 ename = ename.split('.')[-1]
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parents: 8225
diff changeset
175 maxlength = max(len(ename), maxlength)
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parents: 8225
diff changeset
176 exts[ename] = doc.splitlines(0)[0].strip()
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C?dric Duval <cedricduval@free.fr>
parents: 8225
diff changeset
177
20a25042fadc extensions: move extensions listing functions from mercurial.help
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diff changeset
178 return exts, maxlength