Mercurial > hg
annotate mercurial/extensions.py @ 20172:181108726ea5
http: reuse authentication info after the first failed request (issue3567)
Context: mercurial access to repository server with http access, and this
server is protected by basic auth.
Before patch:
* mercurial try an anonymous access to server, server return 401 response and
mercurial resend request with login / password information
After patch:
* mercurial try an anonymous access to server, server return 401
response. For all subsequent requests, mercurial keep in memory this
information (this server need basic auth information).
This patch reduce the number of http access against mercurial server.
Example, before patch :
10.10.168.170 - - [25/Oct/2013:15:44:51 +0200] "GET /hg/testagt?cmd=capabilities
HTTP/1.1" 401 260 "-" "mercurial/proto-1.0"
10.10.168.170 - - [25/Oct/2013:15:44:52 +0200] "GET /hg/testagt?cmd=capabilities
HTTP/1.1" 200 147 "-" "mercurial/proto-1.0"
10.10.168.170 - - [25/Oct/2013:15:45:00 +0200] "GET /hg/testagt?cmd=capabilities
HTTP/1.1" 401 260 "-" "mercurial/proto-1.0"
10.10.168.170 - - [25/Oct/2013:15:45:01 +0200] "GET /hg/testagt?cmd=capabilities
HTTP/1.1" 200 147 "-" "mercurial/proto-1.0"
10.10.168.170 - - [25/Oct/2013:15:45:03 +0200] "GET /hg/testagt?cmd=batch
HTTP/1.1" 401 260 "-" "mercurial/proto-1.0"
10.10.168.170 - - [25/Oct/2013:15:45:04 +0200] "GET /hg/testagt?cmd=batch
HTTP/1.1" 200 42 "-" "mercurial/proto-1.0"
10.10.168.170 - - [25/Oct/2013:15:45:06 +0200] "GET /hg/testagt?cmd=getbundle
HTTP/1.1" 401 260 "-" "mercurial/proto-1.0"
10.10.168.170 - - [25/Oct/2013:15:45:07 +0200] "GET /hg/testagt?cmd=getbundle
HTTP/1.1" 200 61184 "-" "mercurial/proto-1.0"
10.10.168.170 - - [25/Oct/2013:15:45:09 +0200] "GET /hg/testagt?cmd=listkeys
HTTP/1.1" 401 260 "-" "mercurial/proto-1.0"
10.10.168.170 - - [25/Oct/2013:15:45:10 +0200] "GET /hg/testagt?cmd=listkeys
HTTP/1.1" 200 15 "-" "mercurial/proto-1.0"
10.10.168.170 - - [25/Oct/2013:15:45:12 +0200] "GET /hg/testagt?cmd=listkeys
HTTP/1.1" 401 260 "-" "mercurial/proto-1.0"
10.10.168.170 - - [25/Oct/2013:15:45:12 +0200] "GET /hg/testagt?cmd=listkeys
HTTP/1.1" 200 - "-" "mercurial/proto-1.0"
Example after patch :
10.10.168.170 - - [28/Oct/2013:11:49:14 +0100] "GET /hg/testagt?cmd=capabilities
HTTP/1.1" 401 260 "-" "mercurial/proto-1.0"
10.10.168.170 - - [28/Oct/2013:11:49:15 +0100] "GET /hg/testagt?cmd=capabilities
HTTP/1.1" 200 147 "-" "mercurial/proto-1.0"
10.10.168.170 - - [28/Oct/2013:11:49:17 +0100] "GET /hg/testagt?cmd=batch
HTTP/1.1" 200 42 "-" "mercurial/proto-1.0"
10.10.168.170 - - [28/Oct/2013:11:49:19 +0100] "GET /hg/testagt?cmd=getbundle
HTTP/1.1" 200 61184 "-" "mercurial/proto-1.0"
10.10.168.170 - - [28/Oct/2013:11:49:22 +0100] "GET /hg/testagt?cmd=listkeys
HTTP/1.1" 200 15 "-" "mercurial/proto-1.0"
10.10.168.170 - - [28/Oct/2013:11:49:24 +0100] "GET /hg/testagt?cmd=listkeys
HTTP/1.1" 200 - "-" "mercurial/proto-1.0"
In this last example, you can see only one 401 response.
author | Stéphane Klein <contact@stephane-klein.info> |
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date | Mon, 25 Nov 2013 17:18:12 +0100 |
parents | 6f72e7d28b35 |
children | 352abbb0be88 |
rev | line source |
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Create a separate module for managing extensions
Matt Mackall <mpm@selenic.com>
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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 |
10263 | 6 # GNU General Public License version 2 or any later version. |
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7 |
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8 import imp, os |
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9 import util, cmdutil, error |
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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 _ignore = ['hbisect', 'bookmarks', 'parentrevspec', 'interhg'] |
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15 |
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16 def extensions(ui=None): |
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17 if ui: |
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18 def enabled(name): |
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19 for format in ['%s', 'hgext.%s']: |
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20 conf = ui.config('extensions', format % name) |
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21 if conf is not None and not conf.startswith('!'): |
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22 return True |
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23 else: |
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24 enabled = lambda name: True |
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25 for name in _order: |
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26 module = _extensions[name] |
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27 if module and enabled(name): |
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28 yield name, module |
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29 |
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30 def find(name): |
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31 '''return module with given extension name''' |
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32 mod = None |
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33 try: |
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34 mod = _extensions[name] |
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35 except KeyError: |
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36 for k, v in _extensions.iteritems(): |
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37 if k.endswith('.' + name) or k.endswith('/' + name): |
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38 mod = v |
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39 break |
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40 if not mod: |
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41 raise KeyError(name) |
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42 return mod |
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43 |
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44 def loadpath(path, module_name): |
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45 module_name = module_name.replace('.', '_') |
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46 path = util.expandpath(path) |
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47 if os.path.isdir(path): |
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48 # module/__init__.py style |
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49 d, f = os.path.split(path.rstrip('/')) |
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50 fd, fpath, desc = imp.find_module(f, [d]) |
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51 return imp.load_module(module_name, fd, fpath, desc) |
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52 else: |
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53 try: |
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54 return imp.load_source(module_name, path) |
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55 except IOError, exc: |
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56 if not exc.filename: |
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57 exc.filename = path # python does not fill this |
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58 raise |
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59 |
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60 def load(ui, name, path): |
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61 if name.startswith('hgext.') or name.startswith('hgext/'): |
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62 shortname = name[6:] |
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63 else: |
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64 shortname = name |
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65 if shortname in _ignore: |
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66 return None |
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67 if shortname in _extensions: |
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68 return _extensions[shortname] |
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69 _extensions[shortname] = None |
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70 if path: |
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71 # the module will be loaded in sys.modules |
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72 # choose an unique name so that it doesn't |
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73 # conflicts with other modules |
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74 mod = loadpath(path, 'hgext.%s' % name) |
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75 else: |
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76 def importh(name): |
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77 mod = __import__(name) |
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78 components = name.split('.') |
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79 for comp in components[1:]: |
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80 mod = getattr(mod, comp) |
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81 return mod |
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82 try: |
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83 mod = importh("hgext.%s" % name) |
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84 except ImportError, err: |
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85 ui.debug('could not import hgext.%s (%s): trying %s\n' |
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86 % (name, err, name)) |
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87 mod = importh(name) |
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88 _extensions[shortname] = mod |
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89 _order.append(shortname) |
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90 return mod |
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91 |
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92 def loadall(ui): |
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93 result = ui.configitems("extensions") |
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94 newindex = len(_order) |
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95 for (name, path) in result: |
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96 if path: |
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97 if path[0] == '!': |
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98 continue |
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99 try: |
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100 load(ui, name, path) |
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101 except KeyboardInterrupt: |
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102 raise |
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103 except Exception, inst: |
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104 if path: |
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105 ui.warn(_("*** failed to import extension %s from %s: %s\n") |
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106 % (name, path, inst)) |
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107 else: |
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108 ui.warn(_("*** failed to import extension %s: %s\n") |
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109 % (name, inst)) |
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110 if ui.traceback(): |
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111 return 1 |
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112 |
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113 for name in _order[newindex:]: |
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114 uisetup = getattr(_extensions[name], 'uisetup', None) |
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115 if uisetup: |
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116 uisetup(ui) |
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117 |
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118 for name in _order[newindex:]: |
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119 extsetup = getattr(_extensions[name], 'extsetup', None) |
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120 if extsetup: |
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121 try: |
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122 extsetup(ui) |
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123 except TypeError: |
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124 if extsetup.func_code.co_argcount != 0: |
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125 raise |
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126 extsetup() # old extsetup with no ui argument |
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127 |
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128 def wrapcommand(table, command, wrapper): |
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129 '''Wrap the command named `command' in table |
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130 |
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131 Replace command in the command table with wrapper. The wrapped command will |
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132 be inserted into the command table specified by the table argument. |
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133 |
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134 The wrapper will be called like |
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135 |
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136 wrapper(orig, *args, **kwargs) |
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137 |
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138 where orig is the original (wrapped) function, and *args, **kwargs |
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139 are the arguments passed to it. |
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140 ''' |
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141 assert util.safehasattr(wrapper, '__call__') |
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142 aliases, entry = cmdutil.findcmd(command, table) |
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143 for alias, e in table.iteritems(): |
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144 if e is entry: |
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145 key = alias |
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146 break |
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147 |
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148 origfn = entry[0] |
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149 def wrap(*args, **kwargs): |
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150 return util.checksignature(wrapper)( |
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151 util.checksignature(origfn), *args, **kwargs) |
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152 |
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153 wrap.__doc__ = getattr(origfn, '__doc__') |
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154 wrap.__module__ = getattr(origfn, '__module__') |
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155 |
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156 newentry = list(entry) |
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157 newentry[0] = wrap |
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158 table[key] = tuple(newentry) |
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159 return entry |
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160 |
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161 def wrapfunction(container, funcname, wrapper): |
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162 '''Wrap the function named funcname in container |
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163 |
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164 Replace the funcname member in the given container with the specified |
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165 wrapper. The container is typically a module, class, or instance. |
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166 |
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167 The wrapper will be called like |
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168 |
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169 wrapper(orig, *args, **kwargs) |
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170 |
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171 where orig is the original (wrapped) function, and *args, **kwargs |
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172 are the arguments passed to it. |
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173 |
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174 Wrapping methods of the repository object is not recommended since |
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175 it conflicts with extensions that extend the repository by |
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176 subclassing. All extensions that need to extend methods of |
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177 localrepository should use this subclassing trick: namely, |
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178 reposetup() should look like |
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179 |
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180 def reposetup(ui, repo): |
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181 class myrepo(repo.__class__): |
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182 def whatever(self, *args, **kwargs): |
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183 [...extension stuff...] |
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184 super(myrepo, self).whatever(*args, **kwargs) |
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185 [...extension stuff...] |
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186 |
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187 repo.__class__ = myrepo |
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188 |
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189 In general, combining wrapfunction() with subclassing does not |
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190 work. Since you cannot control what other extensions are loaded by |
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191 your end users, you should play nicely with others by using the |
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192 subclass trick. |
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193 ''' |
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194 assert util.safehasattr(wrapper, '__call__') |
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195 def wrap(*args, **kwargs): |
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196 return wrapper(origfn, *args, **kwargs) |
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197 |
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198 origfn = getattr(container, funcname) |
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199 assert util.safehasattr(origfn, '__call__') |
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200 setattr(container, funcname, wrap) |
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201 return origfn |
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202 |
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203 def _disabledpaths(strip_init=False): |
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204 '''find paths of disabled extensions. returns a dict of {name: path} |
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205 removes /__init__.py from packages if strip_init is True''' |
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206 import hgext |
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207 extpath = os.path.dirname(os.path.abspath(hgext.__file__)) |
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208 try: # might not be a filesystem path |
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209 files = os.listdir(extpath) |
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210 except OSError: |
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211 return {} |
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212 |
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213 exts = {} |
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214 for e in files: |
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215 if e.endswith('.py'): |
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216 name = e.rsplit('.', 1)[0] |
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217 path = os.path.join(extpath, e) |
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218 else: |
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219 name = e |
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220 path = os.path.join(extpath, e, '__init__.py') |
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221 if not os.path.exists(path): |
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222 continue |
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223 if strip_init: |
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224 path = os.path.dirname(path) |
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225 if name in exts or name in _order or name == '__init__': |
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226 continue |
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227 exts[name] = path |
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228 return exts |
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229 |
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230 def _moduledoc(file): |
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231 '''return the top-level python documentation for the given file |
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232 |
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233 Loosely inspired by pydoc.source_synopsis(), but rewritten to |
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234 handle triple quotes and to return the whole text instead of just |
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235 the synopsis''' |
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236 result = [] |
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237 |
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238 line = file.readline() |
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239 while line[:1] == '#' or not line.strip(): |
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240 line = file.readline() |
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241 if not line: |
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242 break |
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243 |
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244 start = line[:3] |
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245 if start == '"""' or start == "'''": |
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246 line = line[3:] |
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247 while line: |
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248 if line.rstrip().endswith(start): |
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249 line = line.split(start)[0] |
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250 if line: |
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251 result.append(line) |
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252 break |
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253 elif not line: |
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254 return None # unmatched delimiter |
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255 result.append(line) |
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256 line = file.readline() |
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257 else: |
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258 return None |
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259 |
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260 return ''.join(result) |
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261 |
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262 def _disabledhelp(path): |
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263 '''retrieve help synopsis of a disabled extension (without importing)''' |
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264 try: |
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265 file = open(path) |
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266 except IOError: |
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267 return |
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268 else: |
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269 doc = _moduledoc(file) |
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270 file.close() |
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271 |
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272 if doc: # extracting localized synopsis |
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273 return gettext(doc).splitlines()[0] |
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274 else: |
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275 return _('(no help text available)') |
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276 |
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277 def disabled(): |
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278 '''find disabled extensions from hgext. returns a dict of {name: desc}''' |
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279 try: |
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280 from hgext import __index__ |
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281 return dict((name, gettext(desc)) |
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282 for name, desc in __index__.docs.iteritems() |
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283 if name not in _order) |
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284 except ImportError: |
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285 pass |
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286 |
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287 paths = _disabledpaths() |
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288 if not paths: |
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289 return {} |
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290 |
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291 exts = {} |
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292 for name, path in paths.iteritems(): |
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293 doc = _disabledhelp(path) |
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294 if doc: |
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295 exts[name] = doc |
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296 |
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297 return exts |
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298 |
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299 def disabledext(name): |
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300 '''find a specific disabled extension from hgext. returns desc''' |
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301 try: |
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302 from hgext import __index__ |
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303 if name in _order: # enabled |
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304 return |
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305 else: |
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306 return gettext(__index__.docs.get(name)) |
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307 except ImportError: |
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308 pass |
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309 |
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310 paths = _disabledpaths() |
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311 if name in paths: |
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312 return _disabledhelp(paths[name]) |
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313 |
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314 def disabledcmd(ui, cmd, strict=False): |
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315 '''import disabled extensions until cmd is found. |
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316 returns (cmdname, extname, module)''' |
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317 |
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318 paths = _disabledpaths(strip_init=True) |
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319 if not paths: |
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320 raise error.UnknownCommand(cmd) |
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321 |
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322 def findcmd(cmd, name, path): |
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323 try: |
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324 mod = loadpath(path, 'hgext.%s' % name) |
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325 except Exception: |
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326 return |
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327 try: |
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328 aliases, entry = cmdutil.findcmd(cmd, |
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329 getattr(mod, 'cmdtable', {}), strict) |
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330 except (error.AmbiguousCommand, error.UnknownCommand): |
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331 return |
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332 except Exception: |
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333 ui.warn(_('warning: error finding commands in %s\n') % path) |
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334 ui.traceback() |
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335 return |
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336 for c in aliases: |
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337 if c.startswith(cmd): |
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338 cmd = c |
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339 break |
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340 else: |
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341 cmd = aliases[0] |
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342 return (cmd, name, mod) |
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343 |
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344 ext = None |
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345 # first, search for an extension with the same name as the command |
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346 path = paths.pop(cmd, None) |
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347 if path: |
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348 ext = findcmd(cmd, cmd, path) |
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349 if not ext: |
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350 # otherwise, interrogate each extension until there's a match |
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351 for name, path in paths.iteritems(): |
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352 ext = findcmd(cmd, name, path) |
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353 if ext: |
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354 break |
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355 if ext and 'DEPRECATED' not in ext.__doc__: |
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356 return ext |
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357 |
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358 raise error.UnknownCommand(cmd) |
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359 |
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360 def enabled(shortname=True): |
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361 '''return a dict of {name: desc} of extensions''' |
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362 exts = {} |
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363 for ename, ext in extensions(): |
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364 doc = (gettext(ext.__doc__) or _('(no help text available)')) |
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365 if shortname: |
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366 ename = ename.split('.')[-1] |
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367 exts[ename] = doc.splitlines()[0].strip() |
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368 |
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369 return exts |