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annotate mercurial/exthelper.py @ 41049:021496277392

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exthelper: correct a documentation typo
author Matt Harbison <matt_harbison@yahoo.com>
date Sun, 23 Dec 2018 01:05:20 -0500
parents f5ec93f69171
children 41cd64a81dd9
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1 # Copyright 2012 Logilab SA <contact@logilab.fr>
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2 # Pierre-Yves David <pierre-yves.david@ens-lyon.org>
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3 # Octobus <contact@octobus.net>
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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 or any later version.
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7
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8 #####################################################################
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9 ### Extension helper ###
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10 #####################################################################
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11
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12 from __future__ import absolute_import
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13
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14 from . import (
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15 commands,
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16 extensions,
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17 registrar,
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18 )
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19
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20 class exthelper(object):
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21 """Helper for modular extension setup
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22
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23 A single helper should be instantiated for each extension. Helper
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24 methods are then used as decorators for various purpose.
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25
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26 All decorators return the original function and may be chained.
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27 """
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28
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29 def __init__(self):
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30 self._uipopulatecallables = []
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31 self._uicallables = []
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32 self._extcallables = []
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33 self._repocallables = []
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34 self._commandwrappers = []
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35 self._extcommandwrappers = []
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36 self._functionwrappers = []
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37 self._duckpunchers = []
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38 self.cmdtable = {}
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39 self.command = registrar.command(self.cmdtable)
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40 if '^init' in commands.table:
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41 olddoregister = self.command._doregister
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42
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43 def _newdoregister(self, name, *args, **kwargs):
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44 if kwargs.pop('helpbasic', False):
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45 name = '^' + name
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46 return olddoregister(self, name, *args, **kwargs)
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47 self.command._doregister = _newdoregister
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48
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49 self.configtable = {}
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50 self.configitem = registrar.configitem(self.configtable)
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51
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52 def merge(self, other):
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53 self._uicallables.extend(other._uicallables)
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54 self._uipopulatecallables.extend(other._uipopulatecallables)
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55 self._extcallables.extend(other._extcallables)
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56 self._repocallables.extend(other._repocallables)
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57 self._commandwrappers.extend(other._commandwrappers)
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58 self._extcommandwrappers.extend(other._extcommandwrappers)
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59 self._functionwrappers.extend(other._functionwrappers)
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60 self._duckpunchers.extend(other._duckpunchers)
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61 self.cmdtable.update(other.cmdtable)
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62 for section, items in other.configtable.iteritems():
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63 if section in self.configtable:
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64 self.configtable[section].update(items)
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65 else:
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66 self.configtable[section] = items
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67
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68 def finaluisetup(self, ui):
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69 """Method to be used as the extension uisetup
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70
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71 The following operations belong here:
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72
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73 - Changes to ui.__class__ . The ui object that will be used to run the
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74 command has not yet been created. Changes made here will affect ui
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75 objects created after this, and in particular the ui that will be
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76 passed to runcommand
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77 - Command wraps (extensions.wrapcommand)
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78 - Changes that need to be visible to other extensions: because
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79 initialization occurs in phases (all extensions run uisetup, then all
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80 run extsetup), a change made here will be visible to other extensions
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81 during extsetup
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82 - Monkeypatch or wrap function (extensions.wrapfunction) of dispatch
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83 module members
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84 - Setup of pre-* and post-* hooks
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85 - pushkey setup
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86 """
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87 for cont, funcname, func in self._duckpunchers:
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88 setattr(cont, funcname, func)
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89 for command, wrapper, opts in self._commandwrappers:
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90 entry = extensions.wrapcommand(commands.table, command, wrapper)
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91 if opts:
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92 for short, long, val, msg in opts:
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93 entry[1].append((short, long, val, msg))
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94 for cont, funcname, wrapper in self._functionwrappers:
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95 extensions.wrapfunction(cont, funcname, wrapper)
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96 for c in self._uicallables:
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97 c(ui)
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98
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99 def finaluipopulate(self, ui):
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100 """Method to be used as the extension uipopulate
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101
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102 This is called once per ui instance to:
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103
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104 - Set up additional ui members
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105 - Update configuration by ``ui.setconfig()``
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106 - Extend the class dynamically
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107 """
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108 for c in self._uipopulatecallables:
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109 c(ui)
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110
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111 def finalextsetup(self, ui):
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112 """Method to be used as a the extension extsetup
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113
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114 The following operations belong here:
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115
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116 - Changes depending on the status of other extensions. (if
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117 extensions.find('mq'))
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118 - Add a global option to all commands
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119 """
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120 knownexts = {}
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121
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122 for ext, command, wrapper, opts in self._extcommandwrappers:
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123 if ext not in knownexts:
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parents:
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124 try:
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125 e = extensions.find(ext)
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parents:
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126 except KeyError:
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Matt Harbison <matt_harbison@yahoo.com>
parents:
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127 # Extension isn't enabled, so don't bother trying to wrap
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parents:
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128 # it.
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Matt Harbison <matt_harbison@yahoo.com>
parents:
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129 continue
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Matt Harbison <matt_harbison@yahoo.com>
parents:
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130 knownexts[ext] = e.cmdtable
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parents:
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131 entry = extensions.wrapcommand(knownexts[ext], command, wrapper)
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Matt Harbison <matt_harbison@yahoo.com>
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132 if opts:
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Matt Harbison <matt_harbison@yahoo.com>
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133 for short, long, val, msg in opts:
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parents:
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134 entry[1].append((short, long, val, msg))
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parents:
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135
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Matt Harbison <matt_harbison@yahoo.com>
parents:
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136 for c in self._extcallables:
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Matt Harbison <matt_harbison@yahoo.com>
parents:
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137 c(ui)
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Matt Harbison <matt_harbison@yahoo.com>
parents:
diff changeset
138
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Matt Harbison <matt_harbison@yahoo.com>
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139 def finalreposetup(self, ui, repo):
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140 """Method to be used as the extension reposetup
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parents:
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141
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Matt Harbison <matt_harbison@yahoo.com>
parents:
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142 The following operations belong here:
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parents:
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143
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144 - All hooks but pre-* and post-*
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145 - Modify configuration variables
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Matt Harbison <matt_harbison@yahoo.com>
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146 - Changes to repo.__class__, repo.dirstate.__class__
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Matt Harbison <matt_harbison@yahoo.com>
parents:
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147 """
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Matt Harbison <matt_harbison@yahoo.com>
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148 for c in self._repocallables:
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149 c(ui, repo)
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Matt Harbison <matt_harbison@yahoo.com>
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150
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Matt Harbison <matt_harbison@yahoo.com>
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151 def uisetup(self, call):
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parents:
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152 """Decorated function will be executed during uisetup
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153
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Matt Harbison <matt_harbison@yahoo.com>
parents:
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154 example::
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Matt Harbison <matt_harbison@yahoo.com>
parents:
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155
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Matt Harbison <matt_harbison@yahoo.com>
parents:
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156 @eh.uisetup
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Matt Harbison <matt_harbison@yahoo.com>
parents:
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157 def setupbabar(ui):
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Matt Harbison <matt_harbison@yahoo.com>
parents:
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158 print 'this is uisetup!'
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Matt Harbison <matt_harbison@yahoo.com>
parents:
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159 """
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Matt Harbison <matt_harbison@yahoo.com>
parents:
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160 self._uicallables.append(call)
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Matt Harbison <matt_harbison@yahoo.com>
parents:
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161 return call
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Matt Harbison <matt_harbison@yahoo.com>
parents:
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162
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Matt Harbison <matt_harbison@yahoo.com>
parents:
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163 def uipopulate(self, call):
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parents:
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164 """Decorated function will be executed during uipopulate
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parents:
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165
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Matt Harbison <matt_harbison@yahoo.com>
parents:
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166 example::
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Matt Harbison <matt_harbison@yahoo.com>
parents:
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167
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Matt Harbison <matt_harbison@yahoo.com>
parents:
diff changeset
168 @eh.uipopulate
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Matt Harbison <matt_harbison@yahoo.com>
parents:
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169 def setupfoo(ui):
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parents:
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170 print 'this is uipopulate!'
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parents:
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171 """
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Matt Harbison <matt_harbison@yahoo.com>
parents:
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172 self._uipopulatecallables.append(call)
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Matt Harbison <matt_harbison@yahoo.com>
parents:
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173 return call
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Matt Harbison <matt_harbison@yahoo.com>
parents:
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174
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Matt Harbison <matt_harbison@yahoo.com>
parents:
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175 def extsetup(self, call):
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parents:
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176 """Decorated function will be executed during extsetup
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parents:
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177
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Matt Harbison <matt_harbison@yahoo.com>
parents:
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178 example::
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Matt Harbison <matt_harbison@yahoo.com>
parents:
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179
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Matt Harbison <matt_harbison@yahoo.com>
parents:
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180 @eh.extsetup
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Matt Harbison <matt_harbison@yahoo.com>
parents:
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181 def setupcelestine(ui):
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Matt Harbison <matt_harbison@yahoo.com>
parents:
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182 print 'this is extsetup!'
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Matt Harbison <matt_harbison@yahoo.com>
parents:
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183 """
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Matt Harbison <matt_harbison@yahoo.com>
parents:
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184 self._extcallables.append(call)
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Matt Harbison <matt_harbison@yahoo.com>
parents:
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185 return call
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Matt Harbison <matt_harbison@yahoo.com>
parents:
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186
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Matt Harbison <matt_harbison@yahoo.com>
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187 def reposetup(self, call):
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parents:
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188 """Decorated function will be executed during reposetup
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parents:
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189
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Matt Harbison <matt_harbison@yahoo.com>
parents:
diff changeset
190 example::
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Matt Harbison <matt_harbison@yahoo.com>
parents:
diff changeset
191
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Matt Harbison <matt_harbison@yahoo.com>
parents:
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192 @eh.reposetup
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Matt Harbison <matt_harbison@yahoo.com>
parents:
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193 def setupzephir(ui, repo):
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Matt Harbison <matt_harbison@yahoo.com>
parents:
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194 print 'this is reposetup!'
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Matt Harbison <matt_harbison@yahoo.com>
parents:
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195 """
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Matt Harbison <matt_harbison@yahoo.com>
parents:
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196 self._repocallables.append(call)
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Matt Harbison <matt_harbison@yahoo.com>
parents:
diff changeset
197 return call
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Matt Harbison <matt_harbison@yahoo.com>
parents:
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198
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Matt Harbison <matt_harbison@yahoo.com>
parents:
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199 def wrapcommand(self, command, extension=None, opts=None):
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Matt Harbison <matt_harbison@yahoo.com>
parents:
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200 """Decorated function is a command wrapper
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Matt Harbison <matt_harbison@yahoo.com>
parents:
diff changeset
201
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Matt Harbison <matt_harbison@yahoo.com>
parents:
diff changeset
202 The name of the command must be given as the decorator argument.
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Matt Harbison <matt_harbison@yahoo.com>
parents:
diff changeset
203 The wrapping is installed during `uisetup`.
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Matt Harbison <matt_harbison@yahoo.com>
parents:
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204
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Matt Harbison <matt_harbison@yahoo.com>
parents:
diff changeset
205 If the second option `extension` argument is provided, the wrapping
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Matt Harbison <matt_harbison@yahoo.com>
parents:
diff changeset
206 will be applied in the extension commandtable. This argument must be a
fe606f2dcae9 extensions: import the exthelper class from evolve 980565468003 (API)
Matt Harbison <matt_harbison@yahoo.com>
parents:
diff changeset
207 string that will be searched using `extension.find` if not found and
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Matt Harbison <matt_harbison@yahoo.com>
parents:
diff changeset
208 Abort error is raised. If the wrapping applies to an extension, it is
fe606f2dcae9 extensions: import the exthelper class from evolve 980565468003 (API)
Matt Harbison <matt_harbison@yahoo.com>
parents:
diff changeset
209 installed during `extsetup`.
fe606f2dcae9 extensions: import the exthelper class from evolve 980565468003 (API)
Matt Harbison <matt_harbison@yahoo.com>
parents:
diff changeset
210
fe606f2dcae9 extensions: import the exthelper class from evolve 980565468003 (API)
Matt Harbison <matt_harbison@yahoo.com>
parents:
diff changeset
211 example::
fe606f2dcae9 extensions: import the exthelper class from evolve 980565468003 (API)
Matt Harbison <matt_harbison@yahoo.com>
parents:
diff changeset
212
fe606f2dcae9 extensions: import the exthelper class from evolve 980565468003 (API)
Matt Harbison <matt_harbison@yahoo.com>
parents:
diff changeset
213 @eh.wrapcommand('summary')
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Matt Harbison <matt_harbison@yahoo.com>
parents:
diff changeset
214 def wrapsummary(orig, ui, repo, *args, **kwargs):
fe606f2dcae9 extensions: import the exthelper class from evolve 980565468003 (API)
Matt Harbison <matt_harbison@yahoo.com>
parents:
diff changeset
215 ui.note('Barry!')
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Matt Harbison <matt_harbison@yahoo.com>
parents:
diff changeset
216 return orig(ui, repo, *args, **kwargs)
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Matt Harbison <matt_harbison@yahoo.com>
parents:
diff changeset
217
fe606f2dcae9 extensions: import the exthelper class from evolve 980565468003 (API)
Matt Harbison <matt_harbison@yahoo.com>
parents:
diff changeset
218 The `opts` argument allows specifying additional arguments for the
fe606f2dcae9 extensions: import the exthelper class from evolve 980565468003 (API)
Matt Harbison <matt_harbison@yahoo.com>
parents:
diff changeset
219 command.
fe606f2dcae9 extensions: import the exthelper class from evolve 980565468003 (API)
Matt Harbison <matt_harbison@yahoo.com>
parents:
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220
fe606f2dcae9 extensions: import the exthelper class from evolve 980565468003 (API)
Matt Harbison <matt_harbison@yahoo.com>
parents:
diff changeset
221 """
fe606f2dcae9 extensions: import the exthelper class from evolve 980565468003 (API)
Matt Harbison <matt_harbison@yahoo.com>
parents:
diff changeset
222 if opts is None:
fe606f2dcae9 extensions: import the exthelper class from evolve 980565468003 (API)
Matt Harbison <matt_harbison@yahoo.com>
parents:
diff changeset
223 opts = []
fe606f2dcae9 extensions: import the exthelper class from evolve 980565468003 (API)
Matt Harbison <matt_harbison@yahoo.com>
parents:
diff changeset
224 def dec(wrapper):
fe606f2dcae9 extensions: import the exthelper class from evolve 980565468003 (API)
Matt Harbison <matt_harbison@yahoo.com>
parents:
diff changeset
225 if extension is None:
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Matt Harbison <matt_harbison@yahoo.com>
parents:
diff changeset
226 self._commandwrappers.append((command, wrapper, opts))
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Matt Harbison <matt_harbison@yahoo.com>
parents:
diff changeset
227 else:
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Matt Harbison <matt_harbison@yahoo.com>
parents:
diff changeset
228 self._extcommandwrappers.append((extension, command, wrapper,
fe606f2dcae9 extensions: import the exthelper class from evolve 980565468003 (API)
Matt Harbison <matt_harbison@yahoo.com>
parents:
diff changeset
229 opts))
fe606f2dcae9 extensions: import the exthelper class from evolve 980565468003 (API)
Matt Harbison <matt_harbison@yahoo.com>
parents:
diff changeset
230 return wrapper
fe606f2dcae9 extensions: import the exthelper class from evolve 980565468003 (API)
Matt Harbison <matt_harbison@yahoo.com>
parents:
diff changeset
231 return dec
fe606f2dcae9 extensions: import the exthelper class from evolve 980565468003 (API)
Matt Harbison <matt_harbison@yahoo.com>
parents:
diff changeset
232
fe606f2dcae9 extensions: import the exthelper class from evolve 980565468003 (API)
Matt Harbison <matt_harbison@yahoo.com>
parents:
diff changeset
233 def wrapfunction(self, container, funcname):
fe606f2dcae9 extensions: import the exthelper class from evolve 980565468003 (API)
Matt Harbison <matt_harbison@yahoo.com>
parents:
diff changeset
234 """Decorated function is a function wrapper
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Matt Harbison <matt_harbison@yahoo.com>
parents:
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235
fe606f2dcae9 extensions: import the exthelper class from evolve 980565468003 (API)
Matt Harbison <matt_harbison@yahoo.com>
parents:
diff changeset
236 This function takes two arguments, the container and the name of the
fe606f2dcae9 extensions: import the exthelper class from evolve 980565468003 (API)
Matt Harbison <matt_harbison@yahoo.com>
parents:
diff changeset
237 function to wrap. The wrapping is performed during `uisetup`.
fe606f2dcae9 extensions: import the exthelper class from evolve 980565468003 (API)
Matt Harbison <matt_harbison@yahoo.com>
parents:
diff changeset
238 (there is no extension support)
fe606f2dcae9 extensions: import the exthelper class from evolve 980565468003 (API)
Matt Harbison <matt_harbison@yahoo.com>
parents:
diff changeset
239
fe606f2dcae9 extensions: import the exthelper class from evolve 980565468003 (API)
Matt Harbison <matt_harbison@yahoo.com>
parents:
diff changeset
240 example::
fe606f2dcae9 extensions: import the exthelper class from evolve 980565468003 (API)
Matt Harbison <matt_harbison@yahoo.com>
parents:
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241
fe606f2dcae9 extensions: import the exthelper class from evolve 980565468003 (API)
Matt Harbison <matt_harbison@yahoo.com>
parents:
diff changeset
242 @eh.function(discovery, 'checkheads')
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Matt Harbison <matt_harbison@yahoo.com>
parents:
diff changeset
243 def wrapfunction(orig, *args, **kwargs):
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Matt Harbison <matt_harbison@yahoo.com>
parents:
diff changeset
244 ui.note('His head smashed in and his heart cut out')
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Matt Harbison <matt_harbison@yahoo.com>
parents:
diff changeset
245 return orig(*args, **kwargs)
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Matt Harbison <matt_harbison@yahoo.com>
parents:
diff changeset
246 """
fe606f2dcae9 extensions: import the exthelper class from evolve 980565468003 (API)
Matt Harbison <matt_harbison@yahoo.com>
parents:
diff changeset
247 def dec(wrapper):
fe606f2dcae9 extensions: import the exthelper class from evolve 980565468003 (API)
Matt Harbison <matt_harbison@yahoo.com>
parents:
diff changeset
248 self._functionwrappers.append((container, funcname, wrapper))
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Matt Harbison <matt_harbison@yahoo.com>
parents:
diff changeset
249 return wrapper
fe606f2dcae9 extensions: import the exthelper class from evolve 980565468003 (API)
Matt Harbison <matt_harbison@yahoo.com>
parents:
diff changeset
250 return dec
fe606f2dcae9 extensions: import the exthelper class from evolve 980565468003 (API)
Matt Harbison <matt_harbison@yahoo.com>
parents:
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251
fe606f2dcae9 extensions: import the exthelper class from evolve 980565468003 (API)
Matt Harbison <matt_harbison@yahoo.com>
parents:
diff changeset
252 def addattr(self, container, funcname):
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253 """Decorated function is to be added to the container
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254
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255 This function takes two arguments, the container and the name of the
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256 function to wrap. The wrapping is performed during `uisetup`.
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257
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258 example::
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259
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260 @eh.addattr(context.changectx, 'babar')
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261 def babar(ctx):
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262 return 'babar' in ctx.description
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263 """
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264 def dec(func):
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265 self._duckpunchers.append((container, funcname, func))
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266 return func
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267 return dec