Mercurial > hg
annotate mercurial/registrar.py @ 33493:9a9f95214f46
debug: add a method to check the state of, and built an SSL cert chain
This is only useful on Windows, and avoids the need to use Internet Explorer to
build the certificate chain. I can see this being extended in the future to
print information about the certificate(s) to help debug issues on any platform.
Maybe even perform some of the python checks listed on the secure connections
wiki page. But for now, all I need is 1) a command that can be invoked in a
setup script to ensure the certificate is installed, and 2) a command that the
user can run if/when a certificate changes in the future.
It would have been nice to leverage the sslutil library to pick up host specific
settings, but attempting to use sslutil.wrapsocket() failed the
'not sslsocket.cipher()' check in it and aborted.
The output is a little more chatty than some commands, but I've seen the update
take 10+ seconds, and this is only a debug command.
author | Matt Harbison <matt_harbison@yahoo.com> |
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date | Thu, 30 Mar 2017 00:27:46 -0400 |
parents | c467d13334ee |
children | 50c44dee741a |
rev | line source |
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1 # registrar.py - utilities to register function for specific purpose |
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2 # |
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3 # Copyright FUJIWARA Katsunori <foozy@lares.dti.ne.jp> and others |
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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 from __future__ import absolute_import |
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9 |
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10 from . import ( |
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11 configitems, |
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12 error, |
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13 pycompat, |
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14 util, |
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15 ) |
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16 |
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17 # unlike the other registered items, config options are neither functions or |
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18 # classes. Registering the option is just small function call. |
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19 # |
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20 # We still add the official API to the registrar module for consistency with |
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21 # the other items extensions want might to register. |
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22 configitem = configitems.getitemregister |
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23 |
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24 class _funcregistrarbase(object): |
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25 """Base of decorator to register a function for specific purpose |
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26 |
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27 This decorator stores decorated functions into own dict 'table'. |
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28 |
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29 The least derived class can be defined by overriding 'formatdoc', |
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30 for example:: |
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31 |
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32 class keyword(_funcregistrarbase): |
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33 _docformat = ":%s: %s" |
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34 |
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35 This should be used as below: |
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36 |
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37 keyword = registrar.keyword() |
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38 |
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39 @keyword('bar') |
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40 def barfunc(*args, **kwargs): |
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41 '''Explanation of bar keyword .... |
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42 ''' |
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43 pass |
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44 |
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45 In this case: |
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46 |
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47 - 'barfunc' is stored as 'bar' in '_table' of an instance 'keyword' above |
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48 - 'barfunc.__doc__' becomes ":bar: Explanation of bar keyword" |
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49 """ |
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50 def __init__(self, table=None): |
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51 if table is None: |
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52 self._table = {} |
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53 else: |
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54 self._table = table |
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55 |
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56 def __call__(self, decl, *args, **kwargs): |
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57 return lambda func: self._doregister(func, decl, *args, **kwargs) |
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58 |
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59 def _doregister(self, func, decl, *args, **kwargs): |
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60 name = self._getname(decl) |
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61 |
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62 if name in self._table: |
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63 msg = 'duplicate registration for name: "%s"' % name |
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64 raise error.ProgrammingError(msg) |
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65 |
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66 if func.__doc__ and not util.safehasattr(func, '_origdoc'): |
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67 doc = pycompat.sysbytes(func.__doc__).strip() |
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68 func._origdoc = doc |
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69 func.__doc__ = pycompat.sysstr(self._formatdoc(decl, doc)) |
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70 |
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71 self._table[name] = func |
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72 self._extrasetup(name, func, *args, **kwargs) |
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73 |
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74 return func |
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75 |
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76 def _parsefuncdecl(self, decl): |
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77 """Parse function declaration and return the name of function in it |
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78 """ |
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79 i = decl.find('(') |
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80 if i >= 0: |
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81 return decl[:i] |
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82 else: |
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83 return decl |
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84 |
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85 def _getname(self, decl): |
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86 """Return the name of the registered function from decl |
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87 |
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88 Derived class should override this, if it allows more |
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89 descriptive 'decl' string than just a name. |
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90 """ |
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91 return decl |
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92 |
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93 _docformat = None |
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94 |
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95 def _formatdoc(self, decl, doc): |
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96 """Return formatted document of the registered function for help |
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97 |
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98 'doc' is '__doc__.strip()' of the registered function. |
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99 """ |
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100 return self._docformat % (decl, doc) |
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101 |
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102 def _extrasetup(self, name, func): |
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103 """Execute exra setup for registered function, if needed |
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104 """ |
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105 pass |
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106 |
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107 class command(_funcregistrarbase): |
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108 """Decorator to register a command function to table |
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109 |
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110 This class receives a command table as its argument. The table should |
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111 be a dict. |
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112 |
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113 The created object can be used as a decorator for adding commands to |
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114 that command table. This accepts multiple arguments to define a command. |
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115 |
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116 The first argument is the command name. |
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117 |
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118 The options argument is an iterable of tuples defining command arguments. |
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119 See ``mercurial.fancyopts.fancyopts()`` for the format of each tuple. |
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120 |
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121 The synopsis argument defines a short, one line summary of how to use the |
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122 command. This shows up in the help output. |
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123 |
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124 The norepo argument defines whether the command does not require a |
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125 local repository. Most commands operate against a repository, thus the |
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126 default is False. |
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127 |
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128 The optionalrepo argument defines whether the command optionally requires |
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129 a local repository. |
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130 |
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131 The inferrepo argument defines whether to try to find a repository from the |
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132 command line arguments. If True, arguments will be examined for potential |
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133 repository locations. See ``findrepo()``. If a repository is found, it |
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134 will be used. |
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135 """ |
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136 |
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137 def _doregister(self, func, name, options=(), synopsis=None, |
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138 norepo=False, optionalrepo=False, inferrepo=False): |
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139 func.norepo = norepo |
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140 func.optionalrepo = optionalrepo |
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141 func.inferrepo = inferrepo |
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142 if synopsis: |
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143 self._table[name] = func, list(options), synopsis |
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144 else: |
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145 self._table[name] = func, list(options) |
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146 return func |
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147 |
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148 class revsetpredicate(_funcregistrarbase): |
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149 """Decorator to register revset predicate |
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150 |
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151 Usage:: |
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152 |
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153 revsetpredicate = registrar.revsetpredicate() |
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154 |
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155 @revsetpredicate('mypredicate(arg1, arg2[, arg3])') |
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156 def mypredicatefunc(repo, subset, x): |
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157 '''Explanation of this revset predicate .... |
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158 ''' |
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159 pass |
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160 |
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161 The first string argument is used also in online help. |
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162 |
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163 Optional argument 'safe' indicates whether a predicate is safe for |
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164 DoS attack (False by default). |
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165 |
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166 Optional argument 'takeorder' indicates whether a predicate function |
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167 takes ordering policy as the last argument. |
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168 |
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169 'revsetpredicate' instance in example above can be used to |
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170 decorate multiple functions. |
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171 |
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172 Decorated functions are registered automatically at loading |
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173 extension, if an instance named as 'revsetpredicate' is used for |
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174 decorating in extension. |
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175 |
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176 Otherwise, explicit 'revset.loadpredicate()' is needed. |
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177 """ |
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178 _getname = _funcregistrarbase._parsefuncdecl |
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179 _docformat = "``%s``\n %s" |
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180 |
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181 def _extrasetup(self, name, func, safe=False, takeorder=False): |
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182 func._safe = safe |
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183 func._takeorder = takeorder |
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184 |
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185 class filesetpredicate(_funcregistrarbase): |
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186 """Decorator to register fileset predicate |
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187 |
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188 Usage:: |
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189 |
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190 filesetpredicate = registrar.filesetpredicate() |
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191 |
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192 @filesetpredicate('mypredicate()') |
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193 def mypredicatefunc(mctx, x): |
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194 '''Explanation of this fileset predicate .... |
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195 ''' |
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196 pass |
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197 |
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198 The first string argument is used also in online help. |
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199 |
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200 Optional argument 'callstatus' indicates whether a predicate |
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201 implies 'matchctx.status()' at runtime or not (False, by |
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202 default). |
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203 |
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204 Optional argument 'callexisting' indicates whether a predicate |
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205 implies 'matchctx.existing()' at runtime or not (False, by |
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206 default). |
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207 |
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208 'filesetpredicate' instance in example above can be used to |
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209 decorate multiple functions. |
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210 |
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211 Decorated functions are registered automatically at loading |
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212 extension, if an instance named as 'filesetpredicate' is used for |
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213 decorating in extension. |
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214 |
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215 Otherwise, explicit 'fileset.loadpredicate()' is needed. |
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216 """ |
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217 _getname = _funcregistrarbase._parsefuncdecl |
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218 _docformat = "``%s``\n %s" |
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219 |
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220 def _extrasetup(self, name, func, callstatus=False, callexisting=False): |
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221 func._callstatus = callstatus |
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222 func._callexisting = callexisting |
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223 |
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224 class _templateregistrarbase(_funcregistrarbase): |
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225 """Base of decorator to register functions as template specific one |
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226 """ |
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227 _docformat = ":%s: %s" |
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228 |
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229 class templatekeyword(_templateregistrarbase): |
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230 """Decorator to register template keyword |
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231 |
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232 Usage:: |
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233 |
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234 templatekeyword = registrar.templatekeyword() |
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235 |
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236 @templatekeyword('mykeyword') |
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237 def mykeywordfunc(repo, ctx, templ, cache, revcache, **args): |
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238 '''Explanation of this template keyword .... |
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239 ''' |
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240 pass |
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241 |
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242 The first string argument is used also in online help. |
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243 |
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244 'templatekeyword' instance in example above can be used to |
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245 decorate multiple functions. |
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246 |
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247 Decorated functions are registered automatically at loading |
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248 extension, if an instance named as 'templatekeyword' is used for |
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249 decorating in extension. |
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250 |
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251 Otherwise, explicit 'templatekw.loadkeyword()' is needed. |
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252 """ |
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253 |
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254 class templatefilter(_templateregistrarbase): |
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255 """Decorator to register template filer |
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256 |
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257 Usage:: |
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258 |
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259 templatefilter = registrar.templatefilter() |
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260 |
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261 @templatefilter('myfilter') |
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262 def myfilterfunc(text): |
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263 '''Explanation of this template filter .... |
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264 ''' |
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265 pass |
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266 |
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267 The first string argument is used also in online help. |
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268 |
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269 'templatefilter' instance in example above can be used to |
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270 decorate multiple functions. |
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271 |
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272 Decorated functions are registered automatically at loading |
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273 extension, if an instance named as 'templatefilter' is used for |
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274 decorating in extension. |
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275 |
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276 Otherwise, explicit 'templatefilters.loadkeyword()' is needed. |
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277 """ |
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278 |
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279 class templatefunc(_templateregistrarbase): |
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280 """Decorator to register template function |
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281 |
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282 Usage:: |
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283 |
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284 templatefunc = registrar.templatefunc() |
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285 |
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286 @templatefunc('myfunc(arg1, arg2[, arg3])', argspec='arg1 arg2 arg3') |
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287 def myfuncfunc(context, mapping, args): |
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288 '''Explanation of this template function .... |
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289 ''' |
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290 pass |
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291 |
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292 The first string argument is used also in online help. |
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293 |
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294 If optional 'argspec' is defined, the function will receive 'args' as |
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295 a dict of named arguments. Otherwise 'args' is a list of positional |
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296 arguments. |
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297 |
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298 'templatefunc' instance in example above can be used to |
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299 decorate multiple functions. |
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300 |
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301 Decorated functions are registered automatically at loading |
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302 extension, if an instance named as 'templatefunc' is used for |
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303 decorating in extension. |
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304 |
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305 Otherwise, explicit 'templater.loadfunction()' is needed. |
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306 """ |
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307 _getname = _funcregistrarbase._parsefuncdecl |
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308 |
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309 def _extrasetup(self, name, func, argspec=None): |
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310 func._argspec = argspec |