annotate configmix/config.py @ 428:090a25f36a3d

FIX: Allow jailed configurations to use correctly use base configurations that use a different "default" marker object. Jailed configurations assumed that their "default" marker object is identical to the "default" marker object in the unjailed base configuration. This is not always true, especially if "_JailedConfiguration.rebind()" is used. Removed the explicit "default" keyword argument and passed the complete keywords argument dictionary to the base instead. This triggers correct default handling in the base.
author Franz Glasner <f.glasner@feldmann-mg.com>
date Thu, 09 Dec 2021 13:02:17 +0100
parents 84d4f82ffe59
children b96f49c9c76b
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1 # -*- coding: utf-8 -*-
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2 # :-
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3 # :Copyright: (c) 2015-2021, Franz Glasner. All rights reserved.
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4 # :License: BSD-3-Clause. See LICENSE.txt for details.
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5 # :-
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6 """The unified configuration dictionary with attribute support or
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7 variable substitution.
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9 """
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10
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11 from __future__ import division, absolute_import, print_function
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12
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13
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14 __all__ = ["Configuration"]
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15
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16
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17 import warnings
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18 try:
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19 from collections import OrderedDict as ConfigurationBase
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20 except ImportError:
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21 try:
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22 from ordereddict import OrderedDict as ConfigurationBase
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23 except ImportError:
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24 ConfigurationBase = dict
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25 try:
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26 from urllib.parse import urlsplit
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27 except ImportError:
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28 from urlparse import urlsplit
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30 from .variables import lookup_varns, lookup_filter
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31 from .compat import u, uchr
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32 from .constants import REF_NAMESPACE, NONE_FILTER, EMPTY_FILTER
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35 _MARKER = object()
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37
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38 class _AttributeDict(ConfigurationBase):
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40 def __getattr__(self, name):
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41 try:
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42 v = self[name]
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43 except KeyError:
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44 raise AttributeError("%s has no attribute %r" % (type(self), name))
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45 else:
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46 # Wrap a dict into another dict with attribute access support
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47 if isinstance(v, dict):
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48 return _AttributeDict(v)
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49 else:
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50 return v
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53 class CoercingMethodsMixin(object):
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55 """Mixin to provide some common implementations for retrieval
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56 methods that convert return values to a fixed type (int, bool,
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57 float).
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59 Both :class:`~.Configuration` and :class:`~._JailedConfiguration` use
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60 this mixin.
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62 """
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64 def getintvarl_s(self, *path, **kwds):
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65 """Get a (possibly substituted) variable and coerce text to a
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66 number.
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68 """
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69 s = self.getvarl_s(*path, **kwds)
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70 if isinstance(s, Configuration._TEXTTYPE):
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71 return int(s, 0)
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72 else:
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73 return s
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75 def getfirstintvarl_s(self, *paths, **kwds):
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76 """Get a (possibly substituted) variable and coerce text to a
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77 number.
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79 """
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80 s = self.getfirstvarl_s(*paths, **kwds)
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81 if isinstance(s, Configuration._TEXTTYPE):
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82 return int(s, 0)
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83 else:
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84 return s
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86 def getintvar_s(self, varname, default=_MARKER):
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87 """Get a (possibly substituted) variable and coerce text to a
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88 number.
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90 """
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91 s = self.getvar_s(varname, default=default)
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92 if isinstance(s, Configuration._TEXTTYPE):
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93 return int(s, 0)
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94 else:
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95 return s
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97 def getfirstintvar_s(self, *varnames, **kwds):
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98 """A variant of :meth:`~.getintvar_s` that returns the first found
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99 variable in the list of given variables in `varnames`.
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101 """
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102 s = self.getfirstvar_s(*varnames, **kwds)
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103 if isinstance(s, Configuration._TEXTTYPE):
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104 return int(s, 0)
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105 else:
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106 return s
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108 def getboolvarl_s(self, *path, **kwds):
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109 """Get a (possibly substituted) variable and convert text to a
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110 boolean
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111
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112 """
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113 s = self.getvarl_s(*path, **kwds)
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114 if isinstance(s, Configuration._TEXTTYPE):
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115 sl = s.strip().lower()
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116 if sl not in self._BOOL_CVT:
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117 raise ValueError("Not a boolean: %r" % s)
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118 return self._BOOL_CVT[sl]
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119 else:
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120 return s
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121
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122 def getfirstboolvarl_s(self, *paths, **kwds):
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123 """Get a (possibly substituted) variable and convert text to a
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124 boolean
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125
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126 """
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127 s = self.getfirstvarl_s(*paths, **kwds)
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128 if isinstance(s, Configuration._TEXTTYPE):
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129 sl = s.strip().lower()
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130 if sl not in self._BOOL_CVT:
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131 raise ValueError("Not a boolean: %r" % s)
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132 return self._BOOL_CVT[sl]
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133 else:
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134 return s
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135
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136 def getboolvar_s(self, varname, default=_MARKER):
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137 """Get a (possibly substituted) variable and convert text to a
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138 boolean
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139
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140 """
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141 s = self.getvar_s(varname, default=default)
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142 if isinstance(s, Configuration._TEXTTYPE):
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143 sl = s.strip().lower()
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144 if sl not in self._BOOL_CVT:
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145 raise ValueError("Not a boolean: %r" % s)
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146 return self._BOOL_CVT[sl]
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147 else:
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148 return s
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149
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150 def getfirstboolvar_s(self, *varnames, **kwds):
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151 """A variant of :meth:`~.getboolvar_s` that returns the first found
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152 variable in the list of given variables in `varnames`.
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153
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154 """
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155 s = self.getfirstvar_s(*varnames, **kwds)
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156 if isinstance(s, Configuration._TEXTTYPE):
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157 sl = s.strip().lower()
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158 if sl not in self._BOOL_CVT:
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159 raise ValueError("Not a boolean: %r" % s)
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160 return self._BOOL_CVT[sl]
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161 else:
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162 return s
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163
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164 # Conversion of booleans
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165 _BOOL_CVT = {
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166 u('1'): True, u('yes'): True, u('true'): True, u('on'): True,
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167 u('0'): False, u('no'): False, u('false'): False, u('off'): False
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168 }
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169
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170 def getfloatvarl_s(self, *path, **kwds):
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171 """Get a (possibly substituted) variable and convert text to a
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172 float
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173
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174 """
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175 s = self.getvarl_s(*path, **kwds)
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176 if isinstance(s, Configuration._TEXTTYPE):
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177 return float(s)
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178 else:
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179 return s
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180
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181 def getfirstfloatvarl_s(self, *path, **kwds):
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182 """Get a (possibly substituted) variable and convert text to a
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183 float
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184
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185 """
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186 s = self.getfirstvarl_s(*path, **kwds)
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187 if isinstance(s, Configuration._TEXTTYPE):
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188 return float(s)
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189 else:
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190 return s
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191
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192 def getfloatvar_s(self, varname, default=_MARKER):
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193 """Get a (possibly substituted) variable and convert text to a
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194 float
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195
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196 """
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197 s = self.getvar_s(varname, default)
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198 if isinstance(s, Configuration._TEXTTYPE):
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199 return float(s)
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200 else:
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201 return s
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202
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203 def getfirstfloatvar_s(self, varname, default=_MARKER):
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204 """Get a (possibly substituted) variable and convert text to a
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205 float
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206
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207 """
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208 s = self.getfirstvar_s(varname, default)
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209 if isinstance(s, Configuration._TEXTTYPE):
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210 return float(s)
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211 else:
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212 return s
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213
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214
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215 class Configuration(CoercingMethodsMixin, _AttributeDict):
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216
18
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217 """The configuration dictionary with attribute support or
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218 variable substitution.
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219
322
4aa19e04ff65 Comment: typo
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220 .. note:: When retrieving by attribute names variables will *not*
18
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221 substituted.
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222
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223 """
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224
305
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225 # Speed
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226 _TEXTTYPE = type(u(""))
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227 _STARTTOK = u(b"{{")
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228 _ENDTOK = u(b"}}")
314
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229 _HIER_SEPARATOR = u(b'.')
305
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230 _NS_SEPARATOR = u(b':')
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231 _FILTER_SEPARATOR = u(b'|')
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232 _STARTTOK_REF = _STARTTOK + REF_NAMESPACE + _NS_SEPARATOR
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233 _ENDTOK_REF = _ENDTOK
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234 _DOT = u(b'.')
320
98490375d90c Allow variable name quoting to be used in .getvar() and .getvar_s() and references
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235 _QUOTE = u(b'%')
325
ab33d51f3412 By default quote the "#" character also because it is typically a comment in all the configuration file formats.
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diff changeset
236 _COMMENT = u(b'#')
305
f529ca46dd50 Implemented the "ref" namespace to get configuration tree references.
Franz Glasner <fzglas.hg@dom66.de>
parents: 304
diff changeset
237
404
6a5aea02f3d0 Implement a ".is_jail" flag for configuration objects: to test/assert whether we expect a jail configuration
Franz Glasner <f.glasner@feldmann-mg.com>
parents: 400
diff changeset
238 is_jail = False
6a5aea02f3d0 Implement a ".is_jail" flag for configuration objects: to test/assert whether we expect a jail configuration
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parents: 400
diff changeset
239 """Flag to show that this is not a jail for another configuration"""
6a5aea02f3d0 Implement a ".is_jail" flag for configuration objects: to test/assert whether we expect a jail configuration
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parents: 400
diff changeset
240
382
24db29162d09 Renamed "names" arguments into the more proper "path"
Franz Glasner <fzglas.hg@dom66.de>
parents: 381
diff changeset
241 def getvarl(self, *path, **kwds):
24db29162d09 Renamed "names" arguments into the more proper "path"
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parents: 381
diff changeset
242 """Get a variable where the hierarchy is given in `path` as sequence
380
bb4a90fb58e0 Docu: "namespace" in getvarl() is a keyword argument
Franz Glasner <fzglas.hg@dom66.de>
parents: 374
diff changeset
243 and the namespace is given in the `namespace` keyword argument.
314
043a6412be3c Implemented new access methods .getvarl() and .getvarl_s
Franz Glasner <fzglas.hg@dom66.de>
parents: 311
diff changeset
244
043a6412be3c Implemented new access methods .getvarl() and .getvarl_s
Franz Glasner <fzglas.hg@dom66.de>
parents: 311
diff changeset
245 No variable interpolation is done and no filters are applied.
043a6412be3c Implemented new access methods .getvarl() and .getvarl_s
Franz Glasner <fzglas.hg@dom66.de>
parents: 311
diff changeset
246
382
24db29162d09 Renamed "names" arguments into the more proper "path"
Franz Glasner <fzglas.hg@dom66.de>
parents: 381
diff changeset
247 Quoting of `path` and `namespace` is *not* needed and wrong.
333
5ec0ae3bb8db Docs: quoting
Franz Glasner <fzglas.hg@dom66.de>
parents: 329
diff changeset
248
314
043a6412be3c Implemented new access methods .getvarl() and .getvarl_s
Franz Glasner <fzglas.hg@dom66.de>
parents: 311
diff changeset
249 """
321
7a0f3c256cf4 FIX: Python2 compatibility: keyword arguments after *args not allowed: use **kwds and manual retrieval with .pop() instead
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parents: 320
diff changeset
250 default = kwds.pop("default", _MARKER)
7a0f3c256cf4 FIX: Python2 compatibility: keyword arguments after *args not allowed: use **kwds and manual retrieval with .pop() instead
Franz Glasner <f.glasner@feldmann-mg.com>
parents: 320
diff changeset
251 namespace = kwds.pop("namespace", None)
314
043a6412be3c Implemented new access methods .getvarl() and .getvarl_s
Franz Glasner <fzglas.hg@dom66.de>
parents: 311
diff changeset
252 try:
043a6412be3c Implemented new access methods .getvarl() and .getvarl_s
Franz Glasner <fzglas.hg@dom66.de>
parents: 311
diff changeset
253 if not namespace:
043a6412be3c Implemented new access methods .getvarl() and .getvarl_s
Franz Glasner <fzglas.hg@dom66.de>
parents: 311
diff changeset
254 lookupfn = self._lookupvar
043a6412be3c Implemented new access methods .getvarl() and .getvarl_s
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parents: 311
diff changeset
255 else:
043a6412be3c Implemented new access methods .getvarl() and .getvarl_s
Franz Glasner <fzglas.hg@dom66.de>
parents: 311
diff changeset
256 if namespace == REF_NAMESPACE:
043a6412be3c Implemented new access methods .getvarl() and .getvarl_s
Franz Glasner <fzglas.hg@dom66.de>
parents: 311
diff changeset
257 lookupfn = self._lookupref
043a6412be3c Implemented new access methods .getvarl() and .getvarl_s
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parents: 311
diff changeset
258 else:
043a6412be3c Implemented new access methods .getvarl() and .getvarl_s
Franz Glasner <fzglas.hg@dom66.de>
parents: 311
diff changeset
259 lookupfn = lookup_varns(namespace)
382
24db29162d09 Renamed "names" arguments into the more proper "path"
Franz Glasner <fzglas.hg@dom66.de>
parents: 381
diff changeset
260 varvalue = lookupfn(*path)
314
043a6412be3c Implemented new access methods .getvarl() and .getvarl_s
Franz Glasner <fzglas.hg@dom66.de>
parents: 311
diff changeset
261 except KeyError:
043a6412be3c Implemented new access methods .getvarl() and .getvarl_s
Franz Glasner <fzglas.hg@dom66.de>
parents: 311
diff changeset
262 if default is _MARKER:
382
24db29162d09 Renamed "names" arguments into the more proper "path"
Franz Glasner <fzglas.hg@dom66.de>
parents: 381
diff changeset
263 raise KeyError("Variable %r not found" % (path,))
314
043a6412be3c Implemented new access methods .getvarl() and .getvarl_s
Franz Glasner <fzglas.hg@dom66.de>
parents: 311
diff changeset
264 else:
043a6412be3c Implemented new access methods .getvarl() and .getvarl_s
Franz Glasner <fzglas.hg@dom66.de>
parents: 311
diff changeset
265 return default
043a6412be3c Implemented new access methods .getvarl() and .getvarl_s
Franz Glasner <fzglas.hg@dom66.de>
parents: 311
diff changeset
266 else:
043a6412be3c Implemented new access methods .getvarl() and .getvarl_s
Franz Glasner <fzglas.hg@dom66.de>
parents: 311
diff changeset
267 return varvalue
043a6412be3c Implemented new access methods .getvarl() and .getvarl_s
Franz Glasner <fzglas.hg@dom66.de>
parents: 311
diff changeset
268
418
bb5f11abd12a Implement .getkeysl() and .getkeys() for configuration objects that iterate over all the keys of a configuration value
Franz Glasner <fzglas.hg@dom66.de>
parents: 417
diff changeset
269 def getkeysl(self, *path, **kwds):
bb5f11abd12a Implement .getkeysl() and .getkeys() for configuration objects that iterate over all the keys of a configuration value
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parents: 417
diff changeset
270 """Yield the keys of a variable value.
bb5f11abd12a Implement .getkeysl() and .getkeys() for configuration objects that iterate over all the keys of a configuration value
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parents: 417
diff changeset
271
bb5f11abd12a Implement .getkeysl() and .getkeys() for configuration objects that iterate over all the keys of a configuration value
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parents: 417
diff changeset
272 :rtype: A generator
bb5f11abd12a Implement .getkeysl() and .getkeys() for configuration objects that iterate over all the keys of a configuration value
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diff changeset
273 :raise KeyError:
bb5f11abd12a Implement .getkeysl() and .getkeys() for configuration objects that iterate over all the keys of a configuration value
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diff changeset
274
bb5f11abd12a Implement .getkeysl() and .getkeys() for configuration objects that iterate over all the keys of a configuration value
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parents: 417
diff changeset
275 .. note:: Dictionary keys are not subject to interpolation.
bb5f11abd12a Implement .getkeysl() and .getkeys() for configuration objects that iterate over all the keys of a configuration value
Franz Glasner <fzglas.hg@dom66.de>
parents: 417
diff changeset
276
bb5f11abd12a Implement .getkeysl() and .getkeys() for configuration objects that iterate over all the keys of a configuration value
Franz Glasner <fzglas.hg@dom66.de>
parents: 417
diff changeset
277 """
bb5f11abd12a Implement .getkeysl() and .getkeys() for configuration objects that iterate over all the keys of a configuration value
Franz Glasner <fzglas.hg@dom66.de>
parents: 417
diff changeset
278 if "default" in kwds:
bb5f11abd12a Implement .getkeysl() and .getkeys() for configuration objects that iterate over all the keys of a configuration value
Franz Glasner <fzglas.hg@dom66.de>
parents: 417
diff changeset
279 raise TypeError("got unexpected keyword argument: default")
bb5f11abd12a Implement .getkeysl() and .getkeys() for configuration objects that iterate over all the keys of a configuration value
Franz Glasner <fzglas.hg@dom66.de>
parents: 417
diff changeset
280 for k in self.getvarl(*path, **kwds).keys():
bb5f11abd12a Implement .getkeysl() and .getkeys() for configuration objects that iterate over all the keys of a configuration value
Franz Glasner <fzglas.hg@dom66.de>
parents: 417
diff changeset
281 yield k
bb5f11abd12a Implement .getkeysl() and .getkeys() for configuration objects that iterate over all the keys of a configuration value
Franz Glasner <fzglas.hg@dom66.de>
parents: 417
diff changeset
282
381
fe3dfd687621 Implemented Configuration.getfirstvarl() and Configuration.getfirstvarl_s()
Franz Glasner <fzglas.hg@dom66.de>
parents: 380
diff changeset
283 def getfirstvarl(self, *paths, **kwds):
385
4beeb291926d First documentation of getfirstvarl()
Franz Glasner <fzglas.hg@dom66.de>
parents: 384
diff changeset
284 """A variant of :meth:`~.getvarl` that returns the first found
4beeb291926d First documentation of getfirstvarl()
Franz Glasner <fzglas.hg@dom66.de>
parents: 384
diff changeset
285 variable in the `paths` list.
4beeb291926d First documentation of getfirstvarl()
Franz Glasner <fzglas.hg@dom66.de>
parents: 384
diff changeset
286
4beeb291926d First documentation of getfirstvarl()
Franz Glasner <fzglas.hg@dom66.de>
parents: 384
diff changeset
287 Every item in `paths` is either a `tuple` or `list` or a `dict`.
4beeb291926d First documentation of getfirstvarl()
Franz Glasner <fzglas.hg@dom66.de>
parents: 384
diff changeset
288 If the path item is a `dict` then it must have two keys "namespace"
4beeb291926d First documentation of getfirstvarl()
Franz Glasner <fzglas.hg@dom66.de>
parents: 384
diff changeset
289 and "path".
4beeb291926d First documentation of getfirstvarl()
Franz Glasner <fzglas.hg@dom66.de>
parents: 384
diff changeset
290 If the path item is a `list` or `tuple` then the namespace is assumed
4beeb291926d First documentation of getfirstvarl()
Franz Glasner <fzglas.hg@dom66.de>
parents: 384
diff changeset
291 to be `None`.
4beeb291926d First documentation of getfirstvarl()
Franz Glasner <fzglas.hg@dom66.de>
parents: 384
diff changeset
292
389
Franz Glasner <fzglas.hg@dom66.de>
parents: 388
diff changeset
293 Note that a caller that wants to use variables from a non-default
Franz Glasner <fzglas.hg@dom66.de>
parents: 388
diff changeset
294 namespace must use a sequence of dicts.
Franz Glasner <fzglas.hg@dom66.de>
parents: 388
diff changeset
295
385
4beeb291926d First documentation of getfirstvarl()
Franz Glasner <fzglas.hg@dom66.de>
parents: 384
diff changeset
296 No variable interpolation is done and no filters are applied.
4beeb291926d First documentation of getfirstvarl()
Franz Glasner <fzglas.hg@dom66.de>
parents: 384
diff changeset
297
4beeb291926d First documentation of getfirstvarl()
Franz Glasner <fzglas.hg@dom66.de>
parents: 384
diff changeset
298 Quoting of anything in `paths` is *not* needed and wrong.
4beeb291926d First documentation of getfirstvarl()
Franz Glasner <fzglas.hg@dom66.de>
parents: 384
diff changeset
299
395
0b3ffc34fa5c Begin a jailed configuration with access to a sub-tree of the original configuration
Franz Glasner <f.glasner@feldmann-mg.com>
parents: 389
diff changeset
300 """
381
fe3dfd687621 Implemented Configuration.getfirstvarl() and Configuration.getfirstvarl_s()
Franz Glasner <fzglas.hg@dom66.de>
parents: 380
diff changeset
301 default = kwds.pop("default", _MARKER)
fe3dfd687621 Implemented Configuration.getfirstvarl() and Configuration.getfirstvarl_s()
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parents: 380
diff changeset
302 for path in paths:
fe3dfd687621 Implemented Configuration.getfirstvarl() and Configuration.getfirstvarl_s()
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parents: 380
diff changeset
303 if isinstance(path, (list, tuple)):
fe3dfd687621 Implemented Configuration.getfirstvarl() and Configuration.getfirstvarl_s()
Franz Glasner <fzglas.hg@dom66.de>
parents: 380
diff changeset
304 try:
fe3dfd687621 Implemented Configuration.getfirstvarl() and Configuration.getfirstvarl_s()
Franz Glasner <fzglas.hg@dom66.de>
parents: 380
diff changeset
305 varvalue = self.getvarl(*path)
fe3dfd687621 Implemented Configuration.getfirstvarl() and Configuration.getfirstvarl_s()
Franz Glasner <fzglas.hg@dom66.de>
parents: 380
diff changeset
306 except KeyError:
fe3dfd687621 Implemented Configuration.getfirstvarl() and Configuration.getfirstvarl_s()
Franz Glasner <fzglas.hg@dom66.de>
parents: 380
diff changeset
307 pass
fe3dfd687621 Implemented Configuration.getfirstvarl() and Configuration.getfirstvarl_s()
Franz Glasner <fzglas.hg@dom66.de>
parents: 380
diff changeset
308 else:
fe3dfd687621 Implemented Configuration.getfirstvarl() and Configuration.getfirstvarl_s()
Franz Glasner <fzglas.hg@dom66.de>
parents: 380
diff changeset
309 return varvalue
fe3dfd687621 Implemented Configuration.getfirstvarl() and Configuration.getfirstvarl_s()
Franz Glasner <fzglas.hg@dom66.de>
parents: 380
diff changeset
310 elif isinstance(path, dict):
fe3dfd687621 Implemented Configuration.getfirstvarl() and Configuration.getfirstvarl_s()
Franz Glasner <fzglas.hg@dom66.de>
parents: 380
diff changeset
311 try:
fe3dfd687621 Implemented Configuration.getfirstvarl() and Configuration.getfirstvarl_s()
Franz Glasner <fzglas.hg@dom66.de>
parents: 380
diff changeset
312 namespace = path["namespace"]
fe3dfd687621 Implemented Configuration.getfirstvarl() and Configuration.getfirstvarl_s()
Franz Glasner <fzglas.hg@dom66.de>
parents: 380
diff changeset
313 p = path["path"]
fe3dfd687621 Implemented Configuration.getfirstvarl() and Configuration.getfirstvarl_s()
Franz Glasner <fzglas.hg@dom66.de>
parents: 380
diff changeset
314 except KeyError:
fe3dfd687621 Implemented Configuration.getfirstvarl() and Configuration.getfirstvarl_s()
Franz Glasner <fzglas.hg@dom66.de>
parents: 380
diff changeset
315 raise TypeError("a paths dict item must have a `path'"
fe3dfd687621 Implemented Configuration.getfirstvarl() and Configuration.getfirstvarl_s()
Franz Glasner <fzglas.hg@dom66.de>
parents: 380
diff changeset
316 " and a `namespace' key")
fe3dfd687621 Implemented Configuration.getfirstvarl() and Configuration.getfirstvarl_s()
Franz Glasner <fzglas.hg@dom66.de>
parents: 380
diff changeset
317 else:
fe3dfd687621 Implemented Configuration.getfirstvarl() and Configuration.getfirstvarl_s()
Franz Glasner <fzglas.hg@dom66.de>
parents: 380
diff changeset
318 try:
fe3dfd687621 Implemented Configuration.getfirstvarl() and Configuration.getfirstvarl_s()
Franz Glasner <fzglas.hg@dom66.de>
parents: 380
diff changeset
319 varvalue = self.getvarl(*p, namespace=namespace)
fe3dfd687621 Implemented Configuration.getfirstvarl() and Configuration.getfirstvarl_s()
Franz Glasner <fzglas.hg@dom66.de>
parents: 380
diff changeset
320 except KeyError:
fe3dfd687621 Implemented Configuration.getfirstvarl() and Configuration.getfirstvarl_s()
Franz Glasner <fzglas.hg@dom66.de>
parents: 380
diff changeset
321 pass
fe3dfd687621 Implemented Configuration.getfirstvarl() and Configuration.getfirstvarl_s()
Franz Glasner <fzglas.hg@dom66.de>
parents: 380
diff changeset
322 else:
fe3dfd687621 Implemented Configuration.getfirstvarl() and Configuration.getfirstvarl_s()
Franz Glasner <fzglas.hg@dom66.de>
parents: 380
diff changeset
323 return varvalue
fe3dfd687621 Implemented Configuration.getfirstvarl() and Configuration.getfirstvarl_s()
Franz Glasner <fzglas.hg@dom66.de>
parents: 380
diff changeset
324 else:
fe3dfd687621 Implemented Configuration.getfirstvarl() and Configuration.getfirstvarl_s()
Franz Glasner <fzglas.hg@dom66.de>
parents: 380
diff changeset
325 raise TypeError("a paths item must be a dict, list or tuple")
fe3dfd687621 Implemented Configuration.getfirstvarl() and Configuration.getfirstvarl_s()
Franz Glasner <fzglas.hg@dom66.de>
parents: 380
diff changeset
326 if default is _MARKER:
fe3dfd687621 Implemented Configuration.getfirstvarl() and Configuration.getfirstvarl_s()
Franz Glasner <fzglas.hg@dom66.de>
parents: 380
diff changeset
327 raise KeyError(
fe3dfd687621 Implemented Configuration.getfirstvarl() and Configuration.getfirstvarl_s()
Franz Glasner <fzglas.hg@dom66.de>
parents: 380
diff changeset
328 "none of the given variables found: %r" % (paths,))
fe3dfd687621 Implemented Configuration.getfirstvarl() and Configuration.getfirstvarl_s()
Franz Glasner <fzglas.hg@dom66.de>
parents: 380
diff changeset
329 else:
fe3dfd687621 Implemented Configuration.getfirstvarl() and Configuration.getfirstvarl_s()
Franz Glasner <fzglas.hg@dom66.de>
parents: 380
diff changeset
330 return default
fe3dfd687621 Implemented Configuration.getfirstvarl() and Configuration.getfirstvarl_s()
Franz Glasner <fzglas.hg@dom66.de>
parents: 380
diff changeset
331
16
f85dc4677c01 Implemented the real configuration dictionary with attribute access or
Franz Glasner <hg@dom66.de>
parents:
diff changeset
332 def getvar(self, varname, default=_MARKER):
115
a5339d39af5c Begin the documentation of variables and its expansion
Franz Glasner <hg@dom66.de>
parents: 104
diff changeset
333 """Get a variable of the form ``[ns:][[key1.]key2.]name`` - including
16
f85dc4677c01 Implemented the real configuration dictionary with attribute access or
Franz Glasner <hg@dom66.de>
parents:
diff changeset
334 variables from other namespaces.
f85dc4677c01 Implemented the real configuration dictionary with attribute access or
Franz Glasner <hg@dom66.de>
parents:
diff changeset
335
202
2e66178a09d8 Docu: Ban "keyword expansion" -- use "variable interpolation" instead
Franz Glasner <fzglas.hg@dom66.de>
parents: 156
diff changeset
336 No variable interpolation is done and no filters are applied.
115
a5339d39af5c Begin the documentation of variables and its expansion
Franz Glasner <hg@dom66.de>
parents: 104
diff changeset
337
333
5ec0ae3bb8db Docs: quoting
Franz Glasner <fzglas.hg@dom66.de>
parents: 329
diff changeset
338 Special characters (e.g. ``:`` and ``.``) must be quoted when using
5ec0ae3bb8db Docs: quoting
Franz Glasner <fzglas.hg@dom66.de>
parents: 329
diff changeset
339 the default namespace.
5ec0ae3bb8db Docs: quoting
Franz Glasner <fzglas.hg@dom66.de>
parents: 329
diff changeset
340
5ec0ae3bb8db Docs: quoting
Franz Glasner <fzglas.hg@dom66.de>
parents: 329
diff changeset
341 See also :meth:`~.quote`.
5ec0ae3bb8db Docs: quoting
Franz Glasner <fzglas.hg@dom66.de>
parents: 329
diff changeset
342
16
f85dc4677c01 Implemented the real configuration dictionary with attribute access or
Franz Glasner <hg@dom66.de>
parents:
diff changeset
343 """
f85dc4677c01 Implemented the real configuration dictionary with attribute access or
Franz Glasner <hg@dom66.de>
parents:
diff changeset
344 varns, varname = self._split_ns(varname)
314
043a6412be3c Implemented new access methods .getvarl() and .getvarl_s
Franz Glasner <fzglas.hg@dom66.de>
parents: 311
diff changeset
345 if not varns:
419
079a82129110 Allow the empty variable name to retrieve the root configuration object
Franz Glasner <fzglas.hg@dom66.de>
parents: 418
diff changeset
346 if varname:
079a82129110 Allow the empty variable name to retrieve the root configuration object
Franz Glasner <fzglas.hg@dom66.de>
parents: 418
diff changeset
347 varnameparts = [
079a82129110 Allow the empty variable name to retrieve the root configuration object
Franz Glasner <fzglas.hg@dom66.de>
parents: 418
diff changeset
348 self.unquote(vp)
079a82129110 Allow the empty variable name to retrieve the root configuration object
Franz Glasner <fzglas.hg@dom66.de>
parents: 418
diff changeset
349 for vp in varname.split(self._HIER_SEPARATOR)
079a82129110 Allow the empty variable name to retrieve the root configuration object
Franz Glasner <fzglas.hg@dom66.de>
parents: 418
diff changeset
350 ]
079a82129110 Allow the empty variable name to retrieve the root configuration object
Franz Glasner <fzglas.hg@dom66.de>
parents: 418
diff changeset
351 else:
079a82129110 Allow the empty variable name to retrieve the root configuration object
Franz Glasner <fzglas.hg@dom66.de>
parents: 418
diff changeset
352 varnameparts = tuple()
314
043a6412be3c Implemented new access methods .getvarl() and .getvarl_s
Franz Glasner <fzglas.hg@dom66.de>
parents: 311
diff changeset
353 else:
043a6412be3c Implemented new access methods .getvarl() and .getvarl_s
Franz Glasner <fzglas.hg@dom66.de>
parents: 311
diff changeset
354 varnameparts = (varname,)
364
1941f0188e81 FIX: Handle a "default" keyword parameter in ".getvar()" properly.
Franz Glasner <fzglas.hg@dom66.de>
parents: 357
diff changeset
355 return self.getvarl(*varnameparts, namespace=varns, default=default)
314
043a6412be3c Implemented new access methods .getvarl() and .getvarl_s
Franz Glasner <fzglas.hg@dom66.de>
parents: 311
diff changeset
356
418
bb5f11abd12a Implement .getkeysl() and .getkeys() for configuration objects that iterate over all the keys of a configuration value
Franz Glasner <fzglas.hg@dom66.de>
parents: 417
diff changeset
357 def getkeys(self, varname):
bb5f11abd12a Implement .getkeysl() and .getkeys() for configuration objects that iterate over all the keys of a configuration value
Franz Glasner <fzglas.hg@dom66.de>
parents: 417
diff changeset
358 """Yield all the keys of a variable value.
bb5f11abd12a Implement .getkeysl() and .getkeys() for configuration objects that iterate over all the keys of a configuration value
Franz Glasner <fzglas.hg@dom66.de>
parents: 417
diff changeset
359
bb5f11abd12a Implement .getkeysl() and .getkeys() for configuration objects that iterate over all the keys of a configuration value
Franz Glasner <fzglas.hg@dom66.de>
parents: 417
diff changeset
360 :rtype: A generator
bb5f11abd12a Implement .getkeysl() and .getkeys() for configuration objects that iterate over all the keys of a configuration value
Franz Glasner <fzglas.hg@dom66.de>
parents: 417
diff changeset
361 :raise KeyError:
bb5f11abd12a Implement .getkeysl() and .getkeys() for configuration objects that iterate over all the keys of a configuration value
Franz Glasner <fzglas.hg@dom66.de>
parents: 417
diff changeset
362
bb5f11abd12a Implement .getkeysl() and .getkeys() for configuration objects that iterate over all the keys of a configuration value
Franz Glasner <fzglas.hg@dom66.de>
parents: 417
diff changeset
363 .. note:: Dictionary keys are not subject to interpolation.
bb5f11abd12a Implement .getkeysl() and .getkeys() for configuration objects that iterate over all the keys of a configuration value
Franz Glasner <fzglas.hg@dom66.de>
parents: 417
diff changeset
364
bb5f11abd12a Implement .getkeysl() and .getkeys() for configuration objects that iterate over all the keys of a configuration value
Franz Glasner <fzglas.hg@dom66.de>
parents: 417
diff changeset
365 """
bb5f11abd12a Implement .getkeysl() and .getkeys() for configuration objects that iterate over all the keys of a configuration value
Franz Glasner <fzglas.hg@dom66.de>
parents: 417
diff changeset
366 for k in self.getvar(varname).keys():
bb5f11abd12a Implement .getkeysl() and .getkeys() for configuration objects that iterate over all the keys of a configuration value
Franz Glasner <fzglas.hg@dom66.de>
parents: 417
diff changeset
367 yield k
bb5f11abd12a Implement .getkeysl() and .getkeys() for configuration objects that iterate over all the keys of a configuration value
Franz Glasner <fzglas.hg@dom66.de>
parents: 417
diff changeset
368
368
4ee53f6fcac1 Implement ".getfirstvar()" and ".getfirstvar_s()".
Franz Glasner <fzglas.hg@dom66.de>
parents: 364
diff changeset
369 def getfirstvar(self, *varnames, **kwds):
4ee53f6fcac1 Implement ".getfirstvar()" and ".getfirstvar_s()".
Franz Glasner <fzglas.hg@dom66.de>
parents: 364
diff changeset
370 """A variant of :meth:`~.getvar` that returns the first found variable
4ee53f6fcac1 Implement ".getfirstvar()" and ".getfirstvar_s()".
Franz Glasner <fzglas.hg@dom66.de>
parents: 364
diff changeset
371 in the list of given variables in `varnames`.
4ee53f6fcac1 Implement ".getfirstvar()" and ".getfirstvar_s()".
Franz Glasner <fzglas.hg@dom66.de>
parents: 364
diff changeset
372
4ee53f6fcac1 Implement ".getfirstvar()" and ".getfirstvar_s()".
Franz Glasner <fzglas.hg@dom66.de>
parents: 364
diff changeset
373 """
4ee53f6fcac1 Implement ".getfirstvar()" and ".getfirstvar_s()".
Franz Glasner <fzglas.hg@dom66.de>
parents: 364
diff changeset
374 default = kwds.pop("default", _MARKER)
4ee53f6fcac1 Implement ".getfirstvar()" and ".getfirstvar_s()".
Franz Glasner <fzglas.hg@dom66.de>
parents: 364
diff changeset
375 for varname in varnames:
4ee53f6fcac1 Implement ".getfirstvar()" and ".getfirstvar_s()".
Franz Glasner <fzglas.hg@dom66.de>
parents: 364
diff changeset
376 try:
4ee53f6fcac1 Implement ".getfirstvar()" and ".getfirstvar_s()".
Franz Glasner <fzglas.hg@dom66.de>
parents: 364
diff changeset
377 varvalue = self.getvar(varname)
4ee53f6fcac1 Implement ".getfirstvar()" and ".getfirstvar_s()".
Franz Glasner <fzglas.hg@dom66.de>
parents: 364
diff changeset
378 except KeyError:
4ee53f6fcac1 Implement ".getfirstvar()" and ".getfirstvar_s()".
Franz Glasner <fzglas.hg@dom66.de>
parents: 364
diff changeset
379 pass
4ee53f6fcac1 Implement ".getfirstvar()" and ".getfirstvar_s()".
Franz Glasner <fzglas.hg@dom66.de>
parents: 364
diff changeset
380 else:
4ee53f6fcac1 Implement ".getfirstvar()" and ".getfirstvar_s()".
Franz Glasner <fzglas.hg@dom66.de>
parents: 364
diff changeset
381 return varvalue
4ee53f6fcac1 Implement ".getfirstvar()" and ".getfirstvar_s()".
Franz Glasner <fzglas.hg@dom66.de>
parents: 364
diff changeset
382 if default is _MARKER:
4ee53f6fcac1 Implement ".getfirstvar()" and ".getfirstvar_s()".
Franz Glasner <fzglas.hg@dom66.de>
parents: 364
diff changeset
383 raise KeyError(
4ee53f6fcac1 Implement ".getfirstvar()" and ".getfirstvar_s()".
Franz Glasner <fzglas.hg@dom66.de>
parents: 364
diff changeset
384 "none of the given variables found: %r" % (varnames,))
4ee53f6fcac1 Implement ".getfirstvar()" and ".getfirstvar_s()".
Franz Glasner <fzglas.hg@dom66.de>
parents: 364
diff changeset
385 else:
4ee53f6fcac1 Implement ".getfirstvar()" and ".getfirstvar_s()".
Franz Glasner <fzglas.hg@dom66.de>
parents: 364
diff changeset
386 return default
4ee53f6fcac1 Implement ".getfirstvar()" and ".getfirstvar_s()".
Franz Glasner <fzglas.hg@dom66.de>
parents: 364
diff changeset
387
382
24db29162d09 Renamed "names" arguments into the more proper "path"
Franz Glasner <fzglas.hg@dom66.de>
parents: 381
diff changeset
388 def getvarl_s(self, *path, **kwds):
314
043a6412be3c Implemented new access methods .getvarl() and .getvarl_s
Franz Glasner <fzglas.hg@dom66.de>
parents: 311
diff changeset
389 """Get a variable - including variables from other namespaces.
043a6412be3c Implemented new access methods .getvarl() and .getvarl_s
Franz Glasner <fzglas.hg@dom66.de>
parents: 311
diff changeset
390
382
24db29162d09 Renamed "names" arguments into the more proper "path"
Franz Glasner <fzglas.hg@dom66.de>
parents: 381
diff changeset
391 `path` and `namespace` are interpreted as in
314
043a6412be3c Implemented new access methods .getvarl() and .getvarl_s
Franz Glasner <fzglas.hg@dom66.de>
parents: 311
diff changeset
392 :meth:`.getvarl`. But variables will be interpolated
043a6412be3c Implemented new access methods .getvarl() and .getvarl_s
Franz Glasner <fzglas.hg@dom66.de>
parents: 311
diff changeset
393 recursively within the variable values and filters are
043a6412be3c Implemented new access methods .getvarl() and .getvarl_s
Franz Glasner <fzglas.hg@dom66.de>
parents: 311
diff changeset
394 applied.
043a6412be3c Implemented new access methods .getvarl() and .getvarl_s
Franz Glasner <fzglas.hg@dom66.de>
parents: 311
diff changeset
395
043a6412be3c Implemented new access methods .getvarl() and .getvarl_s
Franz Glasner <fzglas.hg@dom66.de>
parents: 311
diff changeset
396 For more details see chapter :ref:`variable-interpolation`.
043a6412be3c Implemented new access methods .getvarl() and .getvarl_s
Franz Glasner <fzglas.hg@dom66.de>
parents: 311
diff changeset
397
043a6412be3c Implemented new access methods .getvarl() and .getvarl_s
Franz Glasner <fzglas.hg@dom66.de>
parents: 311
diff changeset
398 """
321
7a0f3c256cf4 FIX: Python2 compatibility: keyword arguments after *args not allowed: use **kwds and manual retrieval with .pop() instead
Franz Glasner <f.glasner@feldmann-mg.com>
parents: 320
diff changeset
399 default = kwds.pop("default", _MARKER)
7a0f3c256cf4 FIX: Python2 compatibility: keyword arguments after *args not allowed: use **kwds and manual retrieval with .pop() instead
Franz Glasner <f.glasner@feldmann-mg.com>
parents: 320
diff changeset
400 namespace = kwds.pop("namespace", None)
16
f85dc4677c01 Implemented the real configuration dictionary with attribute access or
Franz Glasner <hg@dom66.de>
parents:
diff changeset
401 try:
382
24db29162d09 Renamed "names" arguments into the more proper "path"
Franz Glasner <fzglas.hg@dom66.de>
parents: 381
diff changeset
402 obj = self.getvarl(*path, namespace=namespace)
314
043a6412be3c Implemented new access methods .getvarl() and .getvarl_s
Franz Glasner <fzglas.hg@dom66.de>
parents: 311
diff changeset
403 return self.substitute_variables_in_obj(obj)
16
f85dc4677c01 Implemented the real configuration dictionary with attribute access or
Franz Glasner <hg@dom66.de>
parents:
diff changeset
404 except KeyError:
f85dc4677c01 Implemented the real configuration dictionary with attribute access or
Franz Glasner <hg@dom66.de>
parents:
diff changeset
405 if default is _MARKER:
314
043a6412be3c Implemented new access methods .getvarl() and .getvarl_s
Franz Glasner <fzglas.hg@dom66.de>
parents: 311
diff changeset
406 raise
16
f85dc4677c01 Implemented the real configuration dictionary with attribute access or
Franz Glasner <hg@dom66.de>
parents:
diff changeset
407 else:
f85dc4677c01 Implemented the real configuration dictionary with attribute access or
Franz Glasner <hg@dom66.de>
parents:
diff changeset
408 return default
f85dc4677c01 Implemented the real configuration dictionary with attribute access or
Franz Glasner <hg@dom66.de>
parents:
diff changeset
409
381
fe3dfd687621 Implemented Configuration.getfirstvarl() and Configuration.getfirstvarl_s()
Franz Glasner <fzglas.hg@dom66.de>
parents: 380
diff changeset
410 def getfirstvarl_s(self, *paths, **kwds):
388
13427f37abab Docs: document Configuration.getfirstvarl_s()
Franz Glasner <fzglas.hg@dom66.de>
parents: 385
diff changeset
411 """A variant of :meth:`~.getfirstvarl` that does variable
13427f37abab Docs: document Configuration.getfirstvarl_s()
Franz Glasner <fzglas.hg@dom66.de>
parents: 385
diff changeset
412 interpolation.
13427f37abab Docs: document Configuration.getfirstvarl_s()
Franz Glasner <fzglas.hg@dom66.de>
parents: 385
diff changeset
413
13427f37abab Docs: document Configuration.getfirstvarl_s()
Franz Glasner <fzglas.hg@dom66.de>
parents: 385
diff changeset
414 `paths` and `kwds` are interpreted as in :meth:`.getfirstvarl`.
13427f37abab Docs: document Configuration.getfirstvarl_s()
Franz Glasner <fzglas.hg@dom66.de>
parents: 385
diff changeset
415 But variables will be interpolated
13427f37abab Docs: document Configuration.getfirstvarl_s()
Franz Glasner <fzglas.hg@dom66.de>
parents: 385
diff changeset
416 recursively within the variable values and filters are
13427f37abab Docs: document Configuration.getfirstvarl_s()
Franz Glasner <fzglas.hg@dom66.de>
parents: 385
diff changeset
417 applied.
13427f37abab Docs: document Configuration.getfirstvarl_s()
Franz Glasner <fzglas.hg@dom66.de>
parents: 385
diff changeset
418
13427f37abab Docs: document Configuration.getfirstvarl_s()
Franz Glasner <fzglas.hg@dom66.de>
parents: 385
diff changeset
419 For more details see chapter :ref:`variable-interpolation`.
13427f37abab Docs: document Configuration.getfirstvarl_s()
Franz Glasner <fzglas.hg@dom66.de>
parents: 385
diff changeset
420
13427f37abab Docs: document Configuration.getfirstvarl_s()
Franz Glasner <fzglas.hg@dom66.de>
parents: 385
diff changeset
421 """
381
fe3dfd687621 Implemented Configuration.getfirstvarl() and Configuration.getfirstvarl_s()
Franz Glasner <fzglas.hg@dom66.de>
parents: 380
diff changeset
422 default = kwds.pop("default", _MARKER)
fe3dfd687621 Implemented Configuration.getfirstvarl() and Configuration.getfirstvarl_s()
Franz Glasner <fzglas.hg@dom66.de>
parents: 380
diff changeset
423 for path in paths:
fe3dfd687621 Implemented Configuration.getfirstvarl() and Configuration.getfirstvarl_s()
Franz Glasner <fzglas.hg@dom66.de>
parents: 380
diff changeset
424 if isinstance(path, (list, tuple)):
fe3dfd687621 Implemented Configuration.getfirstvarl() and Configuration.getfirstvarl_s()
Franz Glasner <fzglas.hg@dom66.de>
parents: 380
diff changeset
425 try:
fe3dfd687621 Implemented Configuration.getfirstvarl() and Configuration.getfirstvarl_s()
Franz Glasner <fzglas.hg@dom66.de>
parents: 380
diff changeset
426 obj = self.getvarl(*path)
fe3dfd687621 Implemented Configuration.getfirstvarl() and Configuration.getfirstvarl_s()
Franz Glasner <fzglas.hg@dom66.de>
parents: 380
diff changeset
427 except KeyError:
fe3dfd687621 Implemented Configuration.getfirstvarl() and Configuration.getfirstvarl_s()
Franz Glasner <fzglas.hg@dom66.de>
parents: 380
diff changeset
428 pass
fe3dfd687621 Implemented Configuration.getfirstvarl() and Configuration.getfirstvarl_s()
Franz Glasner <fzglas.hg@dom66.de>
parents: 380
diff changeset
429 else:
fe3dfd687621 Implemented Configuration.getfirstvarl() and Configuration.getfirstvarl_s()
Franz Glasner <fzglas.hg@dom66.de>
parents: 380
diff changeset
430 return self.substitute_variables_in_obj(obj)
fe3dfd687621 Implemented Configuration.getfirstvarl() and Configuration.getfirstvarl_s()
Franz Glasner <fzglas.hg@dom66.de>
parents: 380
diff changeset
431
fe3dfd687621 Implemented Configuration.getfirstvarl() and Configuration.getfirstvarl_s()
Franz Glasner <fzglas.hg@dom66.de>
parents: 380
diff changeset
432 elif isinstance(path, dict):
fe3dfd687621 Implemented Configuration.getfirstvarl() and Configuration.getfirstvarl_s()
Franz Glasner <fzglas.hg@dom66.de>
parents: 380
diff changeset
433 try:
fe3dfd687621 Implemented Configuration.getfirstvarl() and Configuration.getfirstvarl_s()
Franz Glasner <fzglas.hg@dom66.de>
parents: 380
diff changeset
434 namespace = path["namespace"]
fe3dfd687621 Implemented Configuration.getfirstvarl() and Configuration.getfirstvarl_s()
Franz Glasner <fzglas.hg@dom66.de>
parents: 380
diff changeset
435 p = path["path"]
fe3dfd687621 Implemented Configuration.getfirstvarl() and Configuration.getfirstvarl_s()
Franz Glasner <fzglas.hg@dom66.de>
parents: 380
diff changeset
436 except KeyError:
fe3dfd687621 Implemented Configuration.getfirstvarl() and Configuration.getfirstvarl_s()
Franz Glasner <fzglas.hg@dom66.de>
parents: 380
diff changeset
437 raise TypeError("a paths dict item must have a `path'"
fe3dfd687621 Implemented Configuration.getfirstvarl() and Configuration.getfirstvarl_s()
Franz Glasner <fzglas.hg@dom66.de>
parents: 380
diff changeset
438 " and a `namespace' key")
fe3dfd687621 Implemented Configuration.getfirstvarl() and Configuration.getfirstvarl_s()
Franz Glasner <fzglas.hg@dom66.de>
parents: 380
diff changeset
439 else:
fe3dfd687621 Implemented Configuration.getfirstvarl() and Configuration.getfirstvarl_s()
Franz Glasner <fzglas.hg@dom66.de>
parents: 380
diff changeset
440 try:
fe3dfd687621 Implemented Configuration.getfirstvarl() and Configuration.getfirstvarl_s()
Franz Glasner <fzglas.hg@dom66.de>
parents: 380
diff changeset
441 obj = self.getvarl(*p, namespace=namespace)
fe3dfd687621 Implemented Configuration.getfirstvarl() and Configuration.getfirstvarl_s()
Franz Glasner <fzglas.hg@dom66.de>
parents: 380
diff changeset
442 except KeyError:
fe3dfd687621 Implemented Configuration.getfirstvarl() and Configuration.getfirstvarl_s()
Franz Glasner <fzglas.hg@dom66.de>
parents: 380
diff changeset
443 pass
fe3dfd687621 Implemented Configuration.getfirstvarl() and Configuration.getfirstvarl_s()
Franz Glasner <fzglas.hg@dom66.de>
parents: 380
diff changeset
444 else:
fe3dfd687621 Implemented Configuration.getfirstvarl() and Configuration.getfirstvarl_s()
Franz Glasner <fzglas.hg@dom66.de>
parents: 380
diff changeset
445 return self.substitute_variables_in_obj(obj)
fe3dfd687621 Implemented Configuration.getfirstvarl() and Configuration.getfirstvarl_s()
Franz Glasner <fzglas.hg@dom66.de>
parents: 380
diff changeset
446 else:
fe3dfd687621 Implemented Configuration.getfirstvarl() and Configuration.getfirstvarl_s()
Franz Glasner <fzglas.hg@dom66.de>
parents: 380
diff changeset
447 raise TypeError("a paths item must be a dict, list or tuple")
fe3dfd687621 Implemented Configuration.getfirstvarl() and Configuration.getfirstvarl_s()
Franz Glasner <fzglas.hg@dom66.de>
parents: 380
diff changeset
448 if default is _MARKER:
fe3dfd687621 Implemented Configuration.getfirstvarl() and Configuration.getfirstvarl_s()
Franz Glasner <fzglas.hg@dom66.de>
parents: 380
diff changeset
449 raise KeyError(
fe3dfd687621 Implemented Configuration.getfirstvarl() and Configuration.getfirstvarl_s()
Franz Glasner <fzglas.hg@dom66.de>
parents: 380
diff changeset
450 "none of the given variables found: %r" % (paths,))
fe3dfd687621 Implemented Configuration.getfirstvarl() and Configuration.getfirstvarl_s()
Franz Glasner <fzglas.hg@dom66.de>
parents: 380
diff changeset
451 else:
fe3dfd687621 Implemented Configuration.getfirstvarl() and Configuration.getfirstvarl_s()
Franz Glasner <fzglas.hg@dom66.de>
parents: 380
diff changeset
452 return default
fe3dfd687621 Implemented Configuration.getfirstvarl() and Configuration.getfirstvarl_s()
Franz Glasner <fzglas.hg@dom66.de>
parents: 380
diff changeset
453
16
f85dc4677c01 Implemented the real configuration dictionary with attribute access or
Franz Glasner <hg@dom66.de>
parents:
diff changeset
454 def getvar_s(self, varname, default=_MARKER):
24
fa65adab0b71 FIX: Typo in comment
Franz Glasner <f.glasner@feldmann-mg.com>
parents: 23
diff changeset
455 """Get a variable - including variables from other namespaces.
16
f85dc4677c01 Implemented the real configuration dictionary with attribute access or
Franz Glasner <hg@dom66.de>
parents:
diff changeset
456
115
a5339d39af5c Begin the documentation of variables and its expansion
Franz Glasner <hg@dom66.de>
parents: 104
diff changeset
457 `varname` is interpreted as in :meth:`.getvar`. But variables
202
2e66178a09d8 Docu: Ban "keyword expansion" -- use "variable interpolation" instead
Franz Glasner <fzglas.hg@dom66.de>
parents: 156
diff changeset
458 will be interpolated recursively within the variable values
2e66178a09d8 Docu: Ban "keyword expansion" -- use "variable interpolation" instead
Franz Glasner <fzglas.hg@dom66.de>
parents: 156
diff changeset
459 and filters are applied.
115
a5339d39af5c Begin the documentation of variables and its expansion
Franz Glasner <hg@dom66.de>
parents: 104
diff changeset
460
202
2e66178a09d8 Docu: Ban "keyword expansion" -- use "variable interpolation" instead
Franz Glasner <fzglas.hg@dom66.de>
parents: 156
diff changeset
461 For more details see chapter :ref:`variable-interpolation`.
115
a5339d39af5c Begin the documentation of variables and its expansion
Franz Glasner <hg@dom66.de>
parents: 104
diff changeset
462
16
f85dc4677c01 Implemented the real configuration dictionary with attribute access or
Franz Glasner <hg@dom66.de>
parents:
diff changeset
463 """
f85dc4677c01 Implemented the real configuration dictionary with attribute access or
Franz Glasner <hg@dom66.de>
parents:
diff changeset
464 try:
f85dc4677c01 Implemented the real configuration dictionary with attribute access or
Franz Glasner <hg@dom66.de>
parents:
diff changeset
465 obj = self.getvar(varname)
f85dc4677c01 Implemented the real configuration dictionary with attribute access or
Franz Glasner <hg@dom66.de>
parents:
diff changeset
466 return self.substitute_variables_in_obj(obj)
f85dc4677c01 Implemented the real configuration dictionary with attribute access or
Franz Glasner <hg@dom66.de>
parents:
diff changeset
467 except KeyError:
f85dc4677c01 Implemented the real configuration dictionary with attribute access or
Franz Glasner <hg@dom66.de>
parents:
diff changeset
468 if default is _MARKER:
f85dc4677c01 Implemented the real configuration dictionary with attribute access or
Franz Glasner <hg@dom66.de>
parents:
diff changeset
469 raise
f85dc4677c01 Implemented the real configuration dictionary with attribute access or
Franz Glasner <hg@dom66.de>
parents:
diff changeset
470 else:
f85dc4677c01 Implemented the real configuration dictionary with attribute access or
Franz Glasner <hg@dom66.de>
parents:
diff changeset
471 return default
f85dc4677c01 Implemented the real configuration dictionary with attribute access or
Franz Glasner <hg@dom66.de>
parents:
diff changeset
472
368
4ee53f6fcac1 Implement ".getfirstvar()" and ".getfirstvar_s()".
Franz Glasner <fzglas.hg@dom66.de>
parents: 364
diff changeset
473 def getfirstvar_s(self, *varnames, **kwds):
4ee53f6fcac1 Implement ".getfirstvar()" and ".getfirstvar_s()".
Franz Glasner <fzglas.hg@dom66.de>
parents: 364
diff changeset
474 """A variant of :meth:`~.getvar_s` that returns the first found
4ee53f6fcac1 Implement ".getfirstvar()" and ".getfirstvar_s()".
Franz Glasner <fzglas.hg@dom66.de>
parents: 364
diff changeset
475 variable in the list of given variables in `varnames`.
4ee53f6fcac1 Implement ".getfirstvar()" and ".getfirstvar_s()".
Franz Glasner <fzglas.hg@dom66.de>
parents: 364
diff changeset
476
4ee53f6fcac1 Implement ".getfirstvar()" and ".getfirstvar_s()".
Franz Glasner <fzglas.hg@dom66.de>
parents: 364
diff changeset
477 """
4ee53f6fcac1 Implement ".getfirstvar()" and ".getfirstvar_s()".
Franz Glasner <fzglas.hg@dom66.de>
parents: 364
diff changeset
478 default = kwds.pop("default", _MARKER)
4ee53f6fcac1 Implement ".getfirstvar()" and ".getfirstvar_s()".
Franz Glasner <fzglas.hg@dom66.de>
parents: 364
diff changeset
479 for varname in varnames:
4ee53f6fcac1 Implement ".getfirstvar()" and ".getfirstvar_s()".
Franz Glasner <fzglas.hg@dom66.de>
parents: 364
diff changeset
480 try:
4ee53f6fcac1 Implement ".getfirstvar()" and ".getfirstvar_s()".
Franz Glasner <fzglas.hg@dom66.de>
parents: 364
diff changeset
481 obj = self.getvar(varname)
4ee53f6fcac1 Implement ".getfirstvar()" and ".getfirstvar_s()".
Franz Glasner <fzglas.hg@dom66.de>
parents: 364
diff changeset
482 except KeyError:
4ee53f6fcac1 Implement ".getfirstvar()" and ".getfirstvar_s()".
Franz Glasner <fzglas.hg@dom66.de>
parents: 364
diff changeset
483 pass
4ee53f6fcac1 Implement ".getfirstvar()" and ".getfirstvar_s()".
Franz Glasner <fzglas.hg@dom66.de>
parents: 364
diff changeset
484 else:
4ee53f6fcac1 Implement ".getfirstvar()" and ".getfirstvar_s()".
Franz Glasner <fzglas.hg@dom66.de>
parents: 364
diff changeset
485 return self.substitute_variables_in_obj(obj)
4ee53f6fcac1 Implement ".getfirstvar()" and ".getfirstvar_s()".
Franz Glasner <fzglas.hg@dom66.de>
parents: 364
diff changeset
486 if default is _MARKER:
4ee53f6fcac1 Implement ".getfirstvar()" and ".getfirstvar_s()".
Franz Glasner <fzglas.hg@dom66.de>
parents: 364
diff changeset
487 raise KeyError(
4ee53f6fcac1 Implement ".getfirstvar()" and ".getfirstvar_s()".
Franz Glasner <fzglas.hg@dom66.de>
parents: 364
diff changeset
488 "none of the given variables found: %r" % (varnames,))
4ee53f6fcac1 Implement ".getfirstvar()" and ".getfirstvar_s()".
Franz Glasner <fzglas.hg@dom66.de>
parents: 364
diff changeset
489 else:
4ee53f6fcac1 Implement ".getfirstvar()" and ".getfirstvar_s()".
Franz Glasner <fzglas.hg@dom66.de>
parents: 364
diff changeset
490 return default
4ee53f6fcac1 Implement ".getfirstvar()" and ".getfirstvar_s()".
Franz Glasner <fzglas.hg@dom66.de>
parents: 364
diff changeset
491
16
f85dc4677c01 Implemented the real configuration dictionary with attribute access or
Franz Glasner <hg@dom66.de>
parents:
diff changeset
492 def _split_ns(self, s):
305
f529ca46dd50 Implemented the "ref" namespace to get configuration tree references.
Franz Glasner <fzglas.hg@dom66.de>
parents: 304
diff changeset
493 nameparts = s.split(self._NS_SEPARATOR, 1)
16
f85dc4677c01 Implemented the real configuration dictionary with attribute access or
Franz Glasner <hg@dom66.de>
parents:
diff changeset
494 if len(nameparts) == 1:
f85dc4677c01 Implemented the real configuration dictionary with attribute access or
Franz Glasner <hg@dom66.de>
parents:
diff changeset
495 return (None, s, )
f85dc4677c01 Implemented the real configuration dictionary with attribute access or
Franz Glasner <hg@dom66.de>
parents:
diff changeset
496 else:
329
d81d2cdf4925 FIX: Handle the unquoting of namespaces within Configuration.getvar() properly.
Franz Glasner <fzglas.hg@dom66.de>
parents: 326
diff changeset
497 return (self.unquote(nameparts[0]), nameparts[1], )
16
f85dc4677c01 Implemented the real configuration dictionary with attribute access or
Franz Glasner <hg@dom66.de>
parents:
diff changeset
498
f85dc4677c01 Implemented the real configuration dictionary with attribute access or
Franz Glasner <hg@dom66.de>
parents:
diff changeset
499 def _split_filters(self, s):
305
f529ca46dd50 Implemented the "ref" namespace to get configuration tree references.
Franz Glasner <fzglas.hg@dom66.de>
parents: 304
diff changeset
500 nameparts = s.split(self._FILTER_SEPARATOR)
16
f85dc4677c01 Implemented the real configuration dictionary with attribute access or
Franz Glasner <hg@dom66.de>
parents:
diff changeset
501 if len(nameparts) == 1:
f85dc4677c01 Implemented the real configuration dictionary with attribute access or
Franz Glasner <hg@dom66.de>
parents:
diff changeset
502 return (s, [], )
f85dc4677c01 Implemented the real configuration dictionary with attribute access or
Franz Glasner <hg@dom66.de>
parents:
diff changeset
503 else:
f85dc4677c01 Implemented the real configuration dictionary with attribute access or
Franz Glasner <hg@dom66.de>
parents:
diff changeset
504 return (nameparts[0].rstrip(), nameparts[1:], )
f85dc4677c01 Implemented the real configuration dictionary with attribute access or
Franz Glasner <hg@dom66.de>
parents:
diff changeset
505
382
24db29162d09 Renamed "names" arguments into the more proper "path"
Franz Glasner <fzglas.hg@dom66.de>
parents: 381
diff changeset
506 def _lookupvar(self, *path, **kwds):
314
043a6412be3c Implemented new access methods .getvarl() and .getvarl_s
Franz Glasner <fzglas.hg@dom66.de>
parents: 311
diff changeset
507 """Lookup a variable within a hierarchy.
16
f85dc4677c01 Implemented the real configuration dictionary with attribute access or
Franz Glasner <hg@dom66.de>
parents:
diff changeset
508
382
24db29162d09 Renamed "names" arguments into the more proper "path"
Franz Glasner <fzglas.hg@dom66.de>
parents: 381
diff changeset
509 If no default is given an unexisting `path` raises a `KeyError`
16
f85dc4677c01 Implemented the real configuration dictionary with attribute access or
Franz Glasner <hg@dom66.de>
parents:
diff changeset
510 else `default` is returned.
f85dc4677c01 Implemented the real configuration dictionary with attribute access or
Franz Glasner <hg@dom66.de>
parents:
diff changeset
511 """
321
7a0f3c256cf4 FIX: Python2 compatibility: keyword arguments after *args not allowed: use **kwds and manual retrieval with .pop() instead
Franz Glasner <f.glasner@feldmann-mg.com>
parents: 320
diff changeset
512 default = kwds.pop("default", _MARKER)
419
079a82129110 Allow the empty variable name to retrieve the root configuration object
Franz Glasner <fzglas.hg@dom66.de>
parents: 418
diff changeset
513 if not path:
079a82129110 Allow the empty variable name to retrieve the root configuration object
Franz Glasner <fzglas.hg@dom66.de>
parents: 418
diff changeset
514 return self
16
f85dc4677c01 Implemented the real configuration dictionary with attribute access or
Franz Glasner <hg@dom66.de>
parents:
diff changeset
515 try:
382
24db29162d09 Renamed "names" arguments into the more proper "path"
Franz Glasner <fzglas.hg@dom66.de>
parents: 381
diff changeset
516 v = self.expand_if_reference(self[path[0]])
24db29162d09 Renamed "names" arguments into the more proper "path"
Franz Glasner <fzglas.hg@dom66.de>
parents: 381
diff changeset
517 for p in path[1:]:
305
f529ca46dd50 Implemented the "ref" namespace to get configuration tree references.
Franz Glasner <fzglas.hg@dom66.de>
parents: 304
diff changeset
518 v = self.expand_if_reference(v[p])
104
d9f9a06e0c49 Make a better error message for "TypeError" exceptions when looking up variables.
Franz Glasner <f.glasner@feldmann-mg.com>
parents: 82
diff changeset
519 except TypeError:
207
b3b5ed34d180 Handle most flake8 errors and warnings.
Franz Glasner <fzglas.hg@dom66.de>
parents: 202
diff changeset
520 raise KeyError(
b3b5ed34d180 Handle most flake8 errors and warnings.
Franz Glasner <fzglas.hg@dom66.de>
parents: 202
diff changeset
521 "Configuration variable %r not found"
382
24db29162d09 Renamed "names" arguments into the more proper "path"
Franz Glasner <fzglas.hg@dom66.de>
parents: 381
diff changeset
522 "(missing intermediate keys?)" % (path,))
16
f85dc4677c01 Implemented the real configuration dictionary with attribute access or
Franz Glasner <hg@dom66.de>
parents:
diff changeset
523 except KeyError:
f85dc4677c01 Implemented the real configuration dictionary with attribute access or
Franz Glasner <hg@dom66.de>
parents:
diff changeset
524 if default is _MARKER:
314
043a6412be3c Implemented new access methods .getvarl() and .getvarl_s
Franz Glasner <fzglas.hg@dom66.de>
parents: 311
diff changeset
525 raise KeyError(
382
24db29162d09 Renamed "names" arguments into the more proper "path"
Franz Glasner <fzglas.hg@dom66.de>
parents: 381
diff changeset
526 "Configuration variable %r not found" % (path,))
16
f85dc4677c01 Implemented the real configuration dictionary with attribute access or
Franz Glasner <hg@dom66.de>
parents:
diff changeset
527 else:
f85dc4677c01 Implemented the real configuration dictionary with attribute access or
Franz Glasner <hg@dom66.de>
parents:
diff changeset
528 return default
f85dc4677c01 Implemented the real configuration dictionary with attribute access or
Franz Glasner <hg@dom66.de>
parents:
diff changeset
529 return v
f85dc4677c01 Implemented the real configuration dictionary with attribute access or
Franz Glasner <hg@dom66.de>
parents:
diff changeset
530
305
f529ca46dd50 Implemented the "ref" namespace to get configuration tree references.
Franz Glasner <fzglas.hg@dom66.de>
parents: 304
diff changeset
531 def _lookupref(self, key, default=_MARKER):
f529ca46dd50 Implemented the "ref" namespace to get configuration tree references.
Franz Glasner <fzglas.hg@dom66.de>
parents: 304
diff changeset
532 """
311
Franz Glasner <fzglas.hg@dom66.de>
parents: 310
diff changeset
533
Franz Glasner <fzglas.hg@dom66.de>
parents: 310
diff changeset
534 `key` must be a configuration reference URI without any
Franz Glasner <fzglas.hg@dom66.de>
parents: 310
diff changeset
535 (namespace) prefixes and suffixes
305
f529ca46dd50 Implemented the "ref" namespace to get configuration tree references.
Franz Glasner <fzglas.hg@dom66.de>
parents: 304
diff changeset
536
f529ca46dd50 Implemented the "ref" namespace to get configuration tree references.
Franz Glasner <fzglas.hg@dom66.de>
parents: 304
diff changeset
537 """
f529ca46dd50 Implemented the "ref" namespace to get configuration tree references.
Franz Glasner <fzglas.hg@dom66.de>
parents: 304
diff changeset
538 return self.expand_ref_uri(key, default=default)
f529ca46dd50 Implemented the "ref" namespace to get configuration tree references.
Franz Glasner <fzglas.hg@dom66.de>
parents: 304
diff changeset
539
f529ca46dd50 Implemented the "ref" namespace to get configuration tree references.
Franz Glasner <fzglas.hg@dom66.de>
parents: 304
diff changeset
540 def expand_if_reference(self, v, default=_MARKER):
311
Franz Glasner <fzglas.hg@dom66.de>
parents: 310
diff changeset
541 """Check whether `v` is a configuration reference and -- if true --
Franz Glasner <fzglas.hg@dom66.de>
parents: 310
diff changeset
542 then expand it.
305
f529ca46dd50 Implemented the "ref" namespace to get configuration tree references.
Franz Glasner <fzglas.hg@dom66.de>
parents: 304
diff changeset
543
310
801cd16223e4 FIX: Docu
Franz Glasner <fzglas.hg@dom66.de>
parents: 305
diff changeset
544 `v` must match the pattern ``{{ref:<REFERENCE>}}``
305
f529ca46dd50 Implemented the "ref" namespace to get configuration tree references.
Franz Glasner <fzglas.hg@dom66.de>
parents: 304
diff changeset
545
f529ca46dd50 Implemented the "ref" namespace to get configuration tree references.
Franz Glasner <fzglas.hg@dom66.de>
parents: 304
diff changeset
546 All non-matching texttypes and all non-texttypes are returned
f529ca46dd50 Implemented the "ref" namespace to get configuration tree references.
Franz Glasner <fzglas.hg@dom66.de>
parents: 304
diff changeset
547 unchanged.
f529ca46dd50 Implemented the "ref" namespace to get configuration tree references.
Franz Glasner <fzglas.hg@dom66.de>
parents: 304
diff changeset
548
f529ca46dd50 Implemented the "ref" namespace to get configuration tree references.
Franz Glasner <fzglas.hg@dom66.de>
parents: 304
diff changeset
549 """
f529ca46dd50 Implemented the "ref" namespace to get configuration tree references.
Franz Glasner <fzglas.hg@dom66.de>
parents: 304
diff changeset
550 if not isinstance(v, self._TEXTTYPE):
f529ca46dd50 Implemented the "ref" namespace to get configuration tree references.
Franz Glasner <fzglas.hg@dom66.de>
parents: 304
diff changeset
551 return v
f529ca46dd50 Implemented the "ref" namespace to get configuration tree references.
Franz Glasner <fzglas.hg@dom66.de>
parents: 304
diff changeset
552 if not v.startswith(self._STARTTOK_REF) \
f529ca46dd50 Implemented the "ref" namespace to get configuration tree references.
Franz Glasner <fzglas.hg@dom66.de>
parents: 304
diff changeset
553 or not v.endswith(self._ENDTOK_REF):
f529ca46dd50 Implemented the "ref" namespace to get configuration tree references.
Franz Glasner <fzglas.hg@dom66.de>
parents: 304
diff changeset
554 return v
f529ca46dd50 Implemented the "ref" namespace to get configuration tree references.
Franz Glasner <fzglas.hg@dom66.de>
parents: 304
diff changeset
555 return self.expand_ref_uri(
f529ca46dd50 Implemented the "ref" namespace to get configuration tree references.
Franz Glasner <fzglas.hg@dom66.de>
parents: 304
diff changeset
556 v[len(self._STARTTOK_REF):-len(self._ENDTOK_REF)],
f529ca46dd50 Implemented the "ref" namespace to get configuration tree references.
Franz Glasner <fzglas.hg@dom66.de>
parents: 304
diff changeset
557 default=default)
f529ca46dd50 Implemented the "ref" namespace to get configuration tree references.
Franz Glasner <fzglas.hg@dom66.de>
parents: 304
diff changeset
558
f529ca46dd50 Implemented the "ref" namespace to get configuration tree references.
Franz Glasner <fzglas.hg@dom66.de>
parents: 304
diff changeset
559 def expand_ref_uri(self, uri, default=_MARKER):
f529ca46dd50 Implemented the "ref" namespace to get configuration tree references.
Franz Glasner <fzglas.hg@dom66.de>
parents: 304
diff changeset
560 pu = urlsplit(uri)
f529ca46dd50 Implemented the "ref" namespace to get configuration tree references.
Franz Glasner <fzglas.hg@dom66.de>
parents: 304
diff changeset
561 if pu.scheme or pu.netloc or pu.path or pu.query:
f529ca46dd50 Implemented the "ref" namespace to get configuration tree references.
Franz Glasner <fzglas.hg@dom66.de>
parents: 304
diff changeset
562 raise ValueError("only fragment-only URIs are supported")
f529ca46dd50 Implemented the "ref" namespace to get configuration tree references.
Franz Glasner <fzglas.hg@dom66.de>
parents: 304
diff changeset
563 if not pu.fragment:
f529ca46dd50 Implemented the "ref" namespace to get configuration tree references.
Franz Glasner <fzglas.hg@dom66.de>
parents: 304
diff changeset
564 return self
f529ca46dd50 Implemented the "ref" namespace to get configuration tree references.
Franz Glasner <fzglas.hg@dom66.de>
parents: 304
diff changeset
565 if pu.fragment.startswith(self._DOT):
f529ca46dd50 Implemented the "ref" namespace to get configuration tree references.
Franz Glasner <fzglas.hg@dom66.de>
parents: 304
diff changeset
566 raise ValueError("relative refs not supported")
f529ca46dd50 Implemented the "ref" namespace to get configuration tree references.
Franz Glasner <fzglas.hg@dom66.de>
parents: 304
diff changeset
567 return self.getvar(pu.fragment, default=default)
16
f85dc4677c01 Implemented the real configuration dictionary with attribute access or
Franz Glasner <hg@dom66.de>
parents:
diff changeset
568
f85dc4677c01 Implemented the real configuration dictionary with attribute access or
Franz Glasner <hg@dom66.de>
parents:
diff changeset
569 def substitute_variables_in_obj(self, obj):
f85dc4677c01 Implemented the real configuration dictionary with attribute access or
Franz Glasner <hg@dom66.de>
parents:
diff changeset
570 """Recursively expand variables in the object tree `obj`."""
f85dc4677c01 Implemented the real configuration dictionary with attribute access or
Franz Glasner <hg@dom66.de>
parents:
diff changeset
571 if isinstance(obj, self._TEXTTYPE):
f85dc4677c01 Implemented the real configuration dictionary with attribute access or
Franz Glasner <hg@dom66.de>
parents:
diff changeset
572 # a string - really replace the value
f85dc4677c01 Implemented the real configuration dictionary with attribute access or
Franz Glasner <hg@dom66.de>
parents:
diff changeset
573 return self.expand_variable(obj)
f85dc4677c01 Implemented the real configuration dictionary with attribute access or
Franz Glasner <hg@dom66.de>
parents:
diff changeset
574 elif isinstance(obj, list):
f85dc4677c01 Implemented the real configuration dictionary with attribute access or
Franz Glasner <hg@dom66.de>
parents:
diff changeset
575 return [self.substitute_variables_in_obj(i) for i in obj]
f85dc4677c01 Implemented the real configuration dictionary with attribute access or
Franz Glasner <hg@dom66.de>
parents:
diff changeset
576 elif isinstance(obj, tuple):
f85dc4677c01 Implemented the real configuration dictionary with attribute access or
Franz Glasner <hg@dom66.de>
parents:
diff changeset
577 tmp = [self.substitute_variables_in_obj(i) for i in obj]
f85dc4677c01 Implemented the real configuration dictionary with attribute access or
Franz Glasner <hg@dom66.de>
parents:
diff changeset
578 return type(obj)(tmp)
f85dc4677c01 Implemented the real configuration dictionary with attribute access or
Franz Glasner <hg@dom66.de>
parents:
diff changeset
579 elif isinstance(obj, dict):
f85dc4677c01 Implemented the real configuration dictionary with attribute access or
Franz Glasner <hg@dom66.de>
parents:
diff changeset
580 newdict = type(obj)()
f85dc4677c01 Implemented the real configuration dictionary with attribute access or
Franz Glasner <hg@dom66.de>
parents:
diff changeset
581 for k in obj:
f85dc4677c01 Implemented the real configuration dictionary with attribute access or
Franz Glasner <hg@dom66.de>
parents:
diff changeset
582 newdict[k] = self.substitute_variables_in_obj(obj[k])
f85dc4677c01 Implemented the real configuration dictionary with attribute access or
Franz Glasner <hg@dom66.de>
parents:
diff changeset
583 return newdict
f85dc4677c01 Implemented the real configuration dictionary with attribute access or
Franz Glasner <hg@dom66.de>
parents:
diff changeset
584 elif isinstance(obj, set):
f85dc4677c01 Implemented the real configuration dictionary with attribute access or
Franz Glasner <hg@dom66.de>
parents:
diff changeset
585 newset = type(obj)()
f85dc4677c01 Implemented the real configuration dictionary with attribute access or
Franz Glasner <hg@dom66.de>
parents:
diff changeset
586 for i in obj:
f85dc4677c01 Implemented the real configuration dictionary with attribute access or
Franz Glasner <hg@dom66.de>
parents:
diff changeset
587 newset.add(self.substitute_variables_in_obj(i))
f85dc4677c01 Implemented the real configuration dictionary with attribute access or
Franz Glasner <hg@dom66.de>
parents:
diff changeset
588 else:
f85dc4677c01 Implemented the real configuration dictionary with attribute access or
Franz Glasner <hg@dom66.de>
parents:
diff changeset
589 return obj
f85dc4677c01 Implemented the real configuration dictionary with attribute access or
Franz Glasner <hg@dom66.de>
parents:
diff changeset
590
f85dc4677c01 Implemented the real configuration dictionary with attribute access or
Franz Glasner <hg@dom66.de>
parents:
diff changeset
591 def expand_variable(self, s):
302
Franz Glasner <fzglas.hg@dom66.de>
parents: 296
diff changeset
592 """Expand variables in the single string `s`"""
16
f85dc4677c01 Implemented the real configuration dictionary with attribute access or
Franz Glasner <hg@dom66.de>
parents:
diff changeset
593 start = s.find(self._STARTTOK, 0)
f85dc4677c01 Implemented the real configuration dictionary with attribute access or
Franz Glasner <hg@dom66.de>
parents:
diff changeset
594 while start != -1:
f85dc4677c01 Implemented the real configuration dictionary with attribute access or
Franz Glasner <hg@dom66.de>
parents:
diff changeset
595 end = s.find(self._ENDTOK, start)
f85dc4677c01 Implemented the real configuration dictionary with attribute access or
Franz Glasner <hg@dom66.de>
parents:
diff changeset
596 if end < 0:
f85dc4677c01 Implemented the real configuration dictionary with attribute access or
Franz Glasner <hg@dom66.de>
parents:
diff changeset
597 return s
f85dc4677c01 Implemented the real configuration dictionary with attribute access or
Franz Glasner <hg@dom66.de>
parents:
diff changeset
598 varname, filters = self._split_filters(s[start+2:end])
39
8715e5cc59ac Print a warning if a variable cannot be expanded.
Franz Glasner <hg@dom66.de>
parents: 36
diff changeset
599 try:
357
dd454e1efea4 Use constants for the names of the "None" and "Empty" filters
Franz Glasner <fzglas.hg@dom66.de>
parents: 352
diff changeset
600 if NONE_FILTER in filters:
349
83f76a41cf7c Implement a special filter named "None" that suppresses "KeyErrors" from interpolation lookups and returns a Python "None" instead
Franz Glasner <fzglas.hg@dom66.de>
parents: 334
diff changeset
601 varvalue = self._apply_filters(
83f76a41cf7c Implement a special filter named "None" that suppresses "KeyErrors" from interpolation lookups and returns a Python "None" instead
Franz Glasner <fzglas.hg@dom66.de>
parents: 334
diff changeset
602 filters, self.getvar_s(varname, default=None))
357
dd454e1efea4 Use constants for the names of the "None" and "Empty" filters
Franz Glasner <fzglas.hg@dom66.de>
parents: 352
diff changeset
603 elif EMPTY_FILTER in filters:
352
2b209bdf6995 Implement the "Empty" filter.
Franz Glasner <f.glasner@feldmann-mg.com>
parents: 350
diff changeset
604 varvalue = self._apply_filters(
2b209bdf6995 Implement the "Empty" filter.
Franz Glasner <f.glasner@feldmann-mg.com>
parents: 350
diff changeset
605 filters, self.getvar_s(varname, default=u("")))
349
83f76a41cf7c Implement a special filter named "None" that suppresses "KeyErrors" from interpolation lookups and returns a Python "None" instead
Franz Glasner <fzglas.hg@dom66.de>
parents: 334
diff changeset
606 else:
83f76a41cf7c Implement a special filter named "None" that suppresses "KeyErrors" from interpolation lookups and returns a Python "None" instead
Franz Glasner <fzglas.hg@dom66.de>
parents: 334
diff changeset
607 varvalue = self._apply_filters(
83f76a41cf7c Implement a special filter named "None" that suppresses "KeyErrors" from interpolation lookups and returns a Python "None" instead
Franz Glasner <fzglas.hg@dom66.de>
parents: 334
diff changeset
608 filters, self.getvar_s(varname))
39
8715e5cc59ac Print a warning if a variable cannot be expanded.
Franz Glasner <hg@dom66.de>
parents: 36
diff changeset
609 except KeyError:
8715e5cc59ac Print a warning if a variable cannot be expanded.
Franz Glasner <hg@dom66.de>
parents: 36
diff changeset
610 warnings.warn("Cannot expand variable %r in string "
8715e5cc59ac Print a warning if a variable cannot be expanded.
Franz Glasner <hg@dom66.de>
parents: 36
diff changeset
611 "%r" % (varname, s, ),
8715e5cc59ac Print a warning if a variable cannot be expanded.
Franz Glasner <hg@dom66.de>
parents: 36
diff changeset
612 UserWarning,
8715e5cc59ac Print a warning if a variable cannot be expanded.
Franz Glasner <hg@dom66.de>
parents: 36
diff changeset
613 stacklevel=1)
8715e5cc59ac Print a warning if a variable cannot be expanded.
Franz Glasner <hg@dom66.de>
parents: 36
diff changeset
614 raise
251
2a8dcab2de8c Do not implicitely convert a configuration value to text if the value is the result of just a variable expansion.
Franz Glasner <fzglas.hg@dom66.de>
parents: 250
diff changeset
615 #
350
9d729c479dc2 FIX: Do not apply the type convertion None -> "" if the expansions comprises the whole expression
Franz Glasner <f.glasner@feldmann-mg.com>
parents: 349
diff changeset
616 # Dont apply and type conversions to the variable value if
9d729c479dc2 FIX: Do not apply the type convertion None -> "" if the expansions comprises the whole expression
Franz Glasner <f.glasner@feldmann-mg.com>
parents: 349
diff changeset
617 # the whole `s` is just one expansion
251
2a8dcab2de8c Do not implicitely convert a configuration value to text if the value is the result of just a variable expansion.
Franz Glasner <fzglas.hg@dom66.de>
parents: 250
diff changeset
618 #
2a8dcab2de8c Do not implicitely convert a configuration value to text if the value is the result of just a variable expansion.
Franz Glasner <fzglas.hg@dom66.de>
parents: 250
diff changeset
619 if (start == 0) and (end + 2 == len(s)):
2a8dcab2de8c Do not implicitely convert a configuration value to text if the value is the result of just a variable expansion.
Franz Glasner <fzglas.hg@dom66.de>
parents: 250
diff changeset
620 return varvalue
350
9d729c479dc2 FIX: Do not apply the type convertion None -> "" if the expansions comprises the whole expression
Franz Glasner <f.glasner@feldmann-mg.com>
parents: 349
diff changeset
621 if varvalue is None:
9d729c479dc2 FIX: Do not apply the type convertion None -> "" if the expansions comprises the whole expression
Franz Glasner <f.glasner@feldmann-mg.com>
parents: 349
diff changeset
622 varvalue = u("")
249
1e38ccfba3de Use explicit type conversion instead of an implicit one.
Franz Glasner <fzglas.hg@dom66.de>
parents: 248
diff changeset
623 replaced = s[:start] + u(str(varvalue))
248
13283057a21e Do not use ".format()" but string concatenation or (when conversion to Unicode is needed) the faster %s method
Franz Glasner <fzglas.hg@dom66.de>
parents: 237
diff changeset
624 s = replaced + s[end+2:]
16
f85dc4677c01 Implemented the real configuration dictionary with attribute access or
Franz Glasner <hg@dom66.de>
parents:
diff changeset
625 # don't re-evaluate because `self.getvar_s()` expands already
23
c77cb6bc8eeb FIX: Handle non-str types in variable substitutions properly
Franz Glasner <f.glasner@feldmann-mg.com>
parents: 18
diff changeset
626 start = s.find(self._STARTTOK, len(replaced))
16
f85dc4677c01 Implemented the real configuration dictionary with attribute access or
Franz Glasner <hg@dom66.de>
parents:
diff changeset
627 return s
f85dc4677c01 Implemented the real configuration dictionary with attribute access or
Franz Glasner <hg@dom66.de>
parents:
diff changeset
628
f85dc4677c01 Implemented the real configuration dictionary with attribute access or
Franz Glasner <hg@dom66.de>
parents:
diff changeset
629 def _apply_filters(self, filters, value):
f85dc4677c01 Implemented the real configuration dictionary with attribute access or
Franz Glasner <hg@dom66.de>
parents:
diff changeset
630 for name in filters:
f85dc4677c01 Implemented the real configuration dictionary with attribute access or
Franz Glasner <hg@dom66.de>
parents:
diff changeset
631 try:
f85dc4677c01 Implemented the real configuration dictionary with attribute access or
Franz Glasner <hg@dom66.de>
parents:
diff changeset
632 filterfn = lookup_filter(name)
f85dc4677c01 Implemented the real configuration dictionary with attribute access or
Franz Glasner <hg@dom66.de>
parents:
diff changeset
633 except KeyError:
40
8d66aef2f7fb Comment about exceptions when filters are missing.
Franz Glasner <hg@dom66.de>
parents: 39
diff changeset
634 #
8d66aef2f7fb Comment about exceptions when filters are missing.
Franz Glasner <hg@dom66.de>
parents: 39
diff changeset
635 # Convert to NameError because we find a missing filters
8d66aef2f7fb Comment about exceptions when filters are missing.
Franz Glasner <hg@dom66.de>
parents: 39
diff changeset
636 # a very serious error.
8d66aef2f7fb Comment about exceptions when filters are missing.
Franz Glasner <hg@dom66.de>
parents: 39
diff changeset
637 #
16
f85dc4677c01 Implemented the real configuration dictionary with attribute access or
Franz Glasner <hg@dom66.de>
parents:
diff changeset
638 raise NameError("Filter %r not found" % name)
f85dc4677c01 Implemented the real configuration dictionary with attribute access or
Franz Glasner <hg@dom66.de>
parents:
diff changeset
639 else:
f85dc4677c01 Implemented the real configuration dictionary with attribute access or
Franz Glasner <hg@dom66.de>
parents:
diff changeset
640 value = filterfn(self, value)
f85dc4677c01 Implemented the real configuration dictionary with attribute access or
Franz Glasner <hg@dom66.de>
parents:
diff changeset
641 return value
320
98490375d90c Allow variable name quoting to be used in .getvar() and .getvar_s() and references
Franz Glasner <fzglas.hg@dom66.de>
parents: 314
diff changeset
642
98490375d90c Allow variable name quoting to be used in .getvar() and .getvar_s() and references
Franz Glasner <fzglas.hg@dom66.de>
parents: 314
diff changeset
643 @classmethod
98490375d90c Allow variable name quoting to be used in .getvar() and .getvar_s() and references
Franz Glasner <fzglas.hg@dom66.de>
parents: 314
diff changeset
644 def quote(klass, s):
333
5ec0ae3bb8db Docs: quoting
Franz Glasner <fzglas.hg@dom66.de>
parents: 329
diff changeset
645 """Replace important special characters in string `s` by replacing
5ec0ae3bb8db Docs: quoting
Franz Glasner <fzglas.hg@dom66.de>
parents: 329
diff changeset
646 them with ``%xNN`` where `NN` are the two hexadecimal digits of the
5ec0ae3bb8db Docs: quoting
Franz Glasner <fzglas.hg@dom66.de>
parents: 329
diff changeset
647 characters unicode codepoint value.
5ec0ae3bb8db Docs: quoting
Franz Glasner <fzglas.hg@dom66.de>
parents: 329
diff changeset
648
5ec0ae3bb8db Docs: quoting
Franz Glasner <fzglas.hg@dom66.de>
parents: 329
diff changeset
649 Handled are the important special chars: ``%``, ``.``, ``:``,
334
a04cd5dbcd2c By default quote also the characters "{", "}", "[" and "]" because they are special in YAML
Franz Glasner <f.glasner@feldmann-mg.com>
parents: 333
diff changeset
650 ``#``; ``'``, ``"``, ``|``, ``{``, ``}``, ``[`` and ``]``.
333
5ec0ae3bb8db Docs: quoting
Franz Glasner <fzglas.hg@dom66.de>
parents: 329
diff changeset
651
5ec0ae3bb8db Docs: quoting
Franz Glasner <fzglas.hg@dom66.de>
parents: 329
diff changeset
652 See also the :ref:`quoting` section.
320
98490375d90c Allow variable name quoting to be used in .getvar() and .getvar_s() and references
Franz Glasner <fzglas.hg@dom66.de>
parents: 314
diff changeset
653
98490375d90c Allow variable name quoting to be used in .getvar() and .getvar_s() and references
Franz Glasner <fzglas.hg@dom66.de>
parents: 314
diff changeset
654 """
98490375d90c Allow variable name quoting to be used in .getvar() and .getvar_s() and references
Franz Glasner <fzglas.hg@dom66.de>
parents: 314
diff changeset
655 qc = klass._QUOTE
98490375d90c Allow variable name quoting to be used in .getvar() and .getvar_s() and references
Franz Glasner <fzglas.hg@dom66.de>
parents: 314
diff changeset
656 s = s.replace(qc, qc + "x25")
98490375d90c Allow variable name quoting to be used in .getvar() and .getvar_s() and references
Franz Glasner <fzglas.hg@dom66.de>
parents: 314
diff changeset
657 s = s.replace(klass._DOT, qc + "x2e")
98490375d90c Allow variable name quoting to be used in .getvar() and .getvar_s() and references
Franz Glasner <fzglas.hg@dom66.de>
parents: 314
diff changeset
658 s = s.replace(klass._NS_SEPARATOR, qc + "x3a")
325
ab33d51f3412 By default quote the "#" character also because it is typically a comment in all the configuration file formats.
Franz Glasner <fzglas.hg@dom66.de>
parents: 322
diff changeset
659 s = s.replace(klass._COMMENT, qc + "x23")
326
b7abfbfe806d By default quote '"' and "'" also
Franz Glasner <fzglas.hg@dom66.de>
parents: 325
diff changeset
660 s = s.replace(klass._FILTER_SEPARATOR, qc + "x7c")
b7abfbfe806d By default quote '"' and "'" also
Franz Glasner <fzglas.hg@dom66.de>
parents: 325
diff changeset
661 s = s.replace('"', qc + "x22")
334
a04cd5dbcd2c By default quote also the characters "{", "}", "[" and "]" because they are special in YAML
Franz Glasner <f.glasner@feldmann-mg.com>
parents: 333
diff changeset
662 s = s.replace("'", qc + "x27")
a04cd5dbcd2c By default quote also the characters "{", "}", "[" and "]" because they are special in YAML
Franz Glasner <f.glasner@feldmann-mg.com>
parents: 333
diff changeset
663 s = s.replace('{', qc + "x7b")
a04cd5dbcd2c By default quote also the characters "{", "}", "[" and "]" because they are special in YAML
Franz Glasner <f.glasner@feldmann-mg.com>
parents: 333
diff changeset
664 s = s.replace('}', qc + "x7d")
a04cd5dbcd2c By default quote also the characters "{", "}", "[" and "]" because they are special in YAML
Franz Glasner <f.glasner@feldmann-mg.com>
parents: 333
diff changeset
665 s = s.replace('[', qc + "x5b")
a04cd5dbcd2c By default quote also the characters "{", "}", "[" and "]" because they are special in YAML
Franz Glasner <f.glasner@feldmann-mg.com>
parents: 333
diff changeset
666 return s.replace(']', qc + "x5d")
320
98490375d90c Allow variable name quoting to be used in .getvar() and .getvar_s() and references
Franz Glasner <fzglas.hg@dom66.de>
parents: 314
diff changeset
667
98490375d90c Allow variable name quoting to be used in .getvar() and .getvar_s() and references
Franz Glasner <fzglas.hg@dom66.de>
parents: 314
diff changeset
668 @classmethod
98490375d90c Allow variable name quoting to be used in .getvar() and .getvar_s() and references
Franz Glasner <fzglas.hg@dom66.de>
parents: 314
diff changeset
669 def unquote(klass, s):
333
5ec0ae3bb8db Docs: quoting
Franz Glasner <fzglas.hg@dom66.de>
parents: 329
diff changeset
670 """Unquote the content of `s`: handle all patterns ``%xNN``,
5ec0ae3bb8db Docs: quoting
Franz Glasner <fzglas.hg@dom66.de>
parents: 329
diff changeset
671 ``%uNNNN`` or ``%UNNNNNNNN``.
5ec0ae3bb8db Docs: quoting
Franz Glasner <fzglas.hg@dom66.de>
parents: 329
diff changeset
672
5ec0ae3bb8db Docs: quoting
Franz Glasner <fzglas.hg@dom66.de>
parents: 329
diff changeset
673 This is the inverse of :meth:`~.quote`.
320
98490375d90c Allow variable name quoting to be used in .getvar() and .getvar_s() and references
Franz Glasner <fzglas.hg@dom66.de>
parents: 314
diff changeset
674
98490375d90c Allow variable name quoting to be used in .getvar() and .getvar_s() and references
Franz Glasner <fzglas.hg@dom66.de>
parents: 314
diff changeset
675 """
98490375d90c Allow variable name quoting to be used in .getvar() and .getvar_s() and references
Franz Glasner <fzglas.hg@dom66.de>
parents: 314
diff changeset
676 if klass._QUOTE not in s:
98490375d90c Allow variable name quoting to be used in .getvar() and .getvar_s() and references
Franz Glasner <fzglas.hg@dom66.de>
parents: 314
diff changeset
677 return s
98490375d90c Allow variable name quoting to be used in .getvar() and .getvar_s() and references
Franz Glasner <fzglas.hg@dom66.de>
parents: 314
diff changeset
678 res = []
98490375d90c Allow variable name quoting to be used in .getvar() and .getvar_s() and references
Franz Glasner <fzglas.hg@dom66.de>
parents: 314
diff changeset
679 parts = s.split(klass._QUOTE)
98490375d90c Allow variable name quoting to be used in .getvar() and .getvar_s() and references
Franz Glasner <fzglas.hg@dom66.de>
parents: 314
diff changeset
680 res.append(parts[0])
98490375d90c Allow variable name quoting to be used in .getvar() and .getvar_s() and references
Franz Glasner <fzglas.hg@dom66.de>
parents: 314
diff changeset
681 for p in parts[1:]:
98490375d90c Allow variable name quoting to be used in .getvar() and .getvar_s() and references
Franz Glasner <fzglas.hg@dom66.de>
parents: 314
diff changeset
682 if p.startswith(u(b'x')):
98490375d90c Allow variable name quoting to be used in .getvar() and .getvar_s() and references
Franz Glasner <fzglas.hg@dom66.de>
parents: 314
diff changeset
683 if len(p) < 3:
98490375d90c Allow variable name quoting to be used in .getvar() and .getvar_s() and references
Franz Glasner <fzglas.hg@dom66.de>
parents: 314
diff changeset
684 raise ValueError("quote syntax: length too small")
98490375d90c Allow variable name quoting to be used in .getvar() and .getvar_s() and references
Franz Glasner <fzglas.hg@dom66.de>
parents: 314
diff changeset
685 res.append(uchr(int(p[1:3], 16)))
98490375d90c Allow variable name quoting to be used in .getvar() and .getvar_s() and references
Franz Glasner <fzglas.hg@dom66.de>
parents: 314
diff changeset
686 res.append(p[3:])
98490375d90c Allow variable name quoting to be used in .getvar() and .getvar_s() and references
Franz Glasner <fzglas.hg@dom66.de>
parents: 314
diff changeset
687 elif p.startswith(u(b'u')):
98490375d90c Allow variable name quoting to be used in .getvar() and .getvar_s() and references
Franz Glasner <fzglas.hg@dom66.de>
parents: 314
diff changeset
688 if len(p) < 5:
98490375d90c Allow variable name quoting to be used in .getvar() and .getvar_s() and references
Franz Glasner <fzglas.hg@dom66.de>
parents: 314
diff changeset
689 raise ValueError("quote syntax: length too small")
98490375d90c Allow variable name quoting to be used in .getvar() and .getvar_s() and references
Franz Glasner <fzglas.hg@dom66.de>
parents: 314
diff changeset
690 res.append(uchr(int(p[1:5], 16)))
98490375d90c Allow variable name quoting to be used in .getvar() and .getvar_s() and references
Franz Glasner <fzglas.hg@dom66.de>
parents: 314
diff changeset
691 res.append(p[5:])
98490375d90c Allow variable name quoting to be used in .getvar() and .getvar_s() and references
Franz Glasner <fzglas.hg@dom66.de>
parents: 314
diff changeset
692 elif p.startswith(u(b'U')):
98490375d90c Allow variable name quoting to be used in .getvar() and .getvar_s() and references
Franz Glasner <fzglas.hg@dom66.de>
parents: 314
diff changeset
693 if len(p) < 9:
98490375d90c Allow variable name quoting to be used in .getvar() and .getvar_s() and references
Franz Glasner <fzglas.hg@dom66.de>
parents: 314
diff changeset
694 raise ValueError("quote syntax: length too small")
98490375d90c Allow variable name quoting to be used in .getvar() and .getvar_s() and references
Franz Glasner <fzglas.hg@dom66.de>
parents: 314
diff changeset
695 res.append(uchr(int(p[1:9], 16)))
98490375d90c Allow variable name quoting to be used in .getvar() and .getvar_s() and references
Franz Glasner <fzglas.hg@dom66.de>
parents: 314
diff changeset
696 res.append(p[9:])
98490375d90c Allow variable name quoting to be used in .getvar() and .getvar_s() and references
Franz Glasner <fzglas.hg@dom66.de>
parents: 314
diff changeset
697 else:
98490375d90c Allow variable name quoting to be used in .getvar() and .getvar_s() and references
Franz Glasner <fzglas.hg@dom66.de>
parents: 314
diff changeset
698 raise ValueError("unknown quote syntax string: {}".format(s))
98490375d90c Allow variable name quoting to be used in .getvar() and .getvar_s() and references
Franz Glasner <fzglas.hg@dom66.de>
parents: 314
diff changeset
699 return ''.join(res)
395
0b3ffc34fa5c Begin a jailed configuration with access to a sub-tree of the original configuration
Franz Glasner <f.glasner@feldmann-mg.com>
parents: 389
diff changeset
700
411
3c95faa91dad Optimize the creation of a jailed config.
Franz Glasner <f.glasner@feldmann-mg.com>
parents: 406
diff changeset
701 def jailed(self, rootpath=None, root=None, bind_root=True):
399
Franz Glasner <fzglas.hg@dom66.de>
parents: 398
diff changeset
702 """Return a "jailed" configuration of the current configuration.
395
0b3ffc34fa5c Begin a jailed configuration with access to a sub-tree of the original configuration
Franz Glasner <f.glasner@feldmann-mg.com>
parents: 389
diff changeset
703
399
Franz Glasner <fzglas.hg@dom66.de>
parents: 398
diff changeset
704 :param rootpath: a sequence of strings that shall emcompass
Franz Glasner <fzglas.hg@dom66.de>
parents: 398
diff changeset
705 the chroot-like jail of the returned
Franz Glasner <fzglas.hg@dom66.de>
parents: 398
diff changeset
706 configuration
Franz Glasner <fzglas.hg@dom66.de>
parents: 398
diff changeset
707 :type rootpath: list or tuple
Franz Glasner <fzglas.hg@dom66.de>
parents: 398
diff changeset
708 :param str root: a string path expression that shall encompass
Franz Glasner <fzglas.hg@dom66.de>
parents: 398
diff changeset
709 the chroot-like jail of the returned configuration
411
3c95faa91dad Optimize the creation of a jailed config.
Franz Glasner <f.glasner@feldmann-mg.com>
parents: 406
diff changeset
710 :param bool bind_root: if you do a :meth:`~.rebind` just after
3c95faa91dad Optimize the creation of a jailed config.
Franz Glasner <f.glasner@feldmann-mg.com>
parents: 406
diff changeset
711 creation of a jailed config you can set
3c95faa91dad Optimize the creation of a jailed config.
Franz Glasner <f.glasner@feldmann-mg.com>
parents: 406
diff changeset
712 `bind_root` to `False`; otherwise use
3c95faa91dad Optimize the creation of a jailed config.
Franz Glasner <f.glasner@feldmann-mg.com>
parents: 406
diff changeset
713 the default
397
Franz Glasner <fzglas.hg@dom66.de>
parents: 396
diff changeset
714 :return: a jailed (aka restricted) configuration
Franz Glasner <fzglas.hg@dom66.de>
parents: 396
diff changeset
715 :rtype: _JailedConfiguration
Franz Glasner <fzglas.hg@dom66.de>
parents: 396
diff changeset
716
399
Franz Glasner <fzglas.hg@dom66.de>
parents: 398
diff changeset
717 Exactly one of `rootpath` or `root` must be given.
Franz Glasner <fzglas.hg@dom66.de>
parents: 398
diff changeset
718
395
0b3ffc34fa5c Begin a jailed configuration with access to a sub-tree of the original configuration
Franz Glasner <f.glasner@feldmann-mg.com>
parents: 389
diff changeset
719 """
0b3ffc34fa5c Begin a jailed configuration with access to a sub-tree of the original configuration
Franz Glasner <f.glasner@feldmann-mg.com>
parents: 389
diff changeset
720 if rootpath is not None and root is not None:
0b3ffc34fa5c Begin a jailed configuration with access to a sub-tree of the original configuration
Franz Glasner <f.glasner@feldmann-mg.com>
parents: 389
diff changeset
721 raise ValueError("only one of `rootpath' or `root' can be given")
0b3ffc34fa5c Begin a jailed configuration with access to a sub-tree of the original configuration
Franz Glasner <f.glasner@feldmann-mg.com>
parents: 389
diff changeset
722 if rootpath is None and root is None:
0b3ffc34fa5c Begin a jailed configuration with access to a sub-tree of the original configuration
Franz Glasner <f.glasner@feldmann-mg.com>
parents: 389
diff changeset
723 raise ValueError("one of `rootpath' or `root' must be given")
416
2abde0d3c735 FIX: Handle .jailed() with an empty "root" properly
Franz Glasner <fzglas.hg@dom66.de>
parents: 412
diff changeset
724 if rootpath is not None and not isinstance(rootpath, (list, tuple)):
2abde0d3c735 FIX: Handle .jailed() with an empty "root" properly
Franz Glasner <fzglas.hg@dom66.de>
parents: 412
diff changeset
725 raise TypeError("`rootpath' must be a list or a tuple")
395
0b3ffc34fa5c Begin a jailed configuration with access to a sub-tree of the original configuration
Franz Glasner <f.glasner@feldmann-mg.com>
parents: 389
diff changeset
726 if root is not None:
0b3ffc34fa5c Begin a jailed configuration with access to a sub-tree of the original configuration
Franz Glasner <f.glasner@feldmann-mg.com>
parents: 389
diff changeset
727 # convert to path
0b3ffc34fa5c Begin a jailed configuration with access to a sub-tree of the original configuration
Franz Glasner <f.glasner@feldmann-mg.com>
parents: 389
diff changeset
728 varns, varname = self._split_ns(root)
0b3ffc34fa5c Begin a jailed configuration with access to a sub-tree of the original configuration
Franz Glasner <f.glasner@feldmann-mg.com>
parents: 389
diff changeset
729 if varns:
0b3ffc34fa5c Begin a jailed configuration with access to a sub-tree of the original configuration
Franz Glasner <f.glasner@feldmann-mg.com>
parents: 389
diff changeset
730 raise ValueError(
0b3ffc34fa5c Begin a jailed configuration with access to a sub-tree of the original configuration
Franz Glasner <f.glasner@feldmann-mg.com>
parents: 389
diff changeset
731 "jailed configurations do not support namespaces")
416
2abde0d3c735 FIX: Handle .jailed() with an empty "root" properly
Franz Glasner <fzglas.hg@dom66.de>
parents: 412
diff changeset
732 if varname:
2abde0d3c735 FIX: Handle .jailed() with an empty "root" properly
Franz Glasner <fzglas.hg@dom66.de>
parents: 412
diff changeset
733 rootpath = [
2abde0d3c735 FIX: Handle .jailed() with an empty "root" properly
Franz Glasner <fzglas.hg@dom66.de>
parents: 412
diff changeset
734 self.unquote(p) for p in root.split(
2abde0d3c735 FIX: Handle .jailed() with an empty "root" properly
Franz Glasner <fzglas.hg@dom66.de>
parents: 412
diff changeset
735 self._HIER_SEPARATOR)
2abde0d3c735 FIX: Handle .jailed() with an empty "root" properly
Franz Glasner <fzglas.hg@dom66.de>
parents: 412
diff changeset
736 ]
2abde0d3c735 FIX: Handle .jailed() with an empty "root" properly
Franz Glasner <fzglas.hg@dom66.de>
parents: 412
diff changeset
737 else:
2abde0d3c735 FIX: Handle .jailed() with an empty "root" properly
Franz Glasner <fzglas.hg@dom66.de>
parents: 412
diff changeset
738 rootpath = tuple()
411
3c95faa91dad Optimize the creation of a jailed config.
Franz Glasner <f.glasner@feldmann-mg.com>
parents: 406
diff changeset
739 jc = _JailedConfiguration(*rootpath)
3c95faa91dad Optimize the creation of a jailed config.
Franz Glasner <f.glasner@feldmann-mg.com>
parents: 406
diff changeset
740 if bind_root:
3c95faa91dad Optimize the creation of a jailed config.
Franz Glasner <f.glasner@feldmann-mg.com>
parents: 406
diff changeset
741 jc.rebind(self)
3c95faa91dad Optimize the creation of a jailed config.
Franz Glasner <f.glasner@feldmann-mg.com>
parents: 406
diff changeset
742 return jc
395
0b3ffc34fa5c Begin a jailed configuration with access to a sub-tree of the original configuration
Franz Glasner <f.glasner@feldmann-mg.com>
parents: 389
diff changeset
743
0b3ffc34fa5c Begin a jailed configuration with access to a sub-tree of the original configuration
Franz Glasner <f.glasner@feldmann-mg.com>
parents: 389
diff changeset
744
412
816327e178b0 Provide coercing methods for the jailed configuration: getintXXX(), getboolXXX(), getfloatXXX() and friends.
Franz Glasner <fzglas.hg@dom66.de>
parents: 411
diff changeset
745 class _JailedConfiguration(CoercingMethodsMixin):
395
0b3ffc34fa5c Begin a jailed configuration with access to a sub-tree of the original configuration
Franz Glasner <f.glasner@feldmann-mg.com>
parents: 389
diff changeset
746
397
Franz Glasner <fzglas.hg@dom66.de>
parents: 396
diff changeset
747 """A jailed and restricted variant of :class:`Configuration`.
Franz Glasner <fzglas.hg@dom66.de>
parents: 396
diff changeset
748
399
Franz Glasner <fzglas.hg@dom66.de>
parents: 398
diff changeset
749 Restriction is two-fold:
Franz Glasner <fzglas.hg@dom66.de>
parents: 398
diff changeset
750
Franz Glasner <fzglas.hg@dom66.de>
parents: 398
diff changeset
751 - The access to configuration variables in `config` is restricted
Franz Glasner <fzglas.hg@dom66.de>
parents: 398
diff changeset
752 to the configuration sub-tree that is configured in `path`.
Franz Glasner <fzglas.hg@dom66.de>
parents: 398
diff changeset
753
Franz Glasner <fzglas.hg@dom66.de>
parents: 398
diff changeset
754 - Not all access-methods of :class:`Configuration` are implemented
Franz Glasner <fzglas.hg@dom66.de>
parents: 398
diff changeset
755 yet.
Franz Glasner <fzglas.hg@dom66.de>
parents: 398
diff changeset
756
400
Franz Glasner <fzglas.hg@dom66.de>
parents: 399
diff changeset
757 .. seealso:: :ref:`jailed-configuration`
Franz Glasner <fzglas.hg@dom66.de>
parents: 399
diff changeset
758
399
Franz Glasner <fzglas.hg@dom66.de>
parents: 398
diff changeset
759 .. note:: There is no namespace support.
Franz Glasner <fzglas.hg@dom66.de>
parents: 398
diff changeset
760
Franz Glasner <fzglas.hg@dom66.de>
parents: 398
diff changeset
761 .. note:: Do not call the constructor directly. Instantiate a jailed
Franz Glasner <fzglas.hg@dom66.de>
parents: 398
diff changeset
762 configuration from the parent configuration's
Franz Glasner <fzglas.hg@dom66.de>
parents: 398
diff changeset
763 :meth:`~.Configuration.jailed` factory method.
397
Franz Glasner <fzglas.hg@dom66.de>
parents: 396
diff changeset
764
Franz Glasner <fzglas.hg@dom66.de>
parents: 396
diff changeset
765 """
395
0b3ffc34fa5c Begin a jailed configuration with access to a sub-tree of the original configuration
Franz Glasner <f.glasner@feldmann-mg.com>
parents: 389
diff changeset
766
396
Franz Glasner <fzglas.hg@dom66.de>
parents: 395
diff changeset
767 __slots__ = ("_base", "_path", "_pathstr")
395
0b3ffc34fa5c Begin a jailed configuration with access to a sub-tree of the original configuration
Franz Glasner <f.glasner@feldmann-mg.com>
parents: 389
diff changeset
768
404
6a5aea02f3d0 Implement a ".is_jail" flag for configuration objects: to test/assert whether we expect a jail configuration
Franz Glasner <f.glasner@feldmann-mg.com>
parents: 400
diff changeset
769 is_jail = True
6a5aea02f3d0 Implement a ".is_jail" flag for configuration objects: to test/assert whether we expect a jail configuration
Franz Glasner <f.glasner@feldmann-mg.com>
parents: 400
diff changeset
770 """Flag to show that this is a jail for another configuration"""
6a5aea02f3d0 Implement a ".is_jail" flag for configuration objects: to test/assert whether we expect a jail configuration
Franz Glasner <f.glasner@feldmann-mg.com>
parents: 400
diff changeset
771
411
3c95faa91dad Optimize the creation of a jailed config.
Franz Glasner <f.glasner@feldmann-mg.com>
parents: 406
diff changeset
772 def __init__(self, *path):
395
0b3ffc34fa5c Begin a jailed configuration with access to a sub-tree of the original configuration
Franz Glasner <f.glasner@feldmann-mg.com>
parents: 389
diff changeset
773 super(_JailedConfiguration, self).__init__()
0b3ffc34fa5c Begin a jailed configuration with access to a sub-tree of the original configuration
Franz Glasner <f.glasner@feldmann-mg.com>
parents: 389
diff changeset
774 self._path = path
0b3ffc34fa5c Begin a jailed configuration with access to a sub-tree of the original configuration
Franz Glasner <f.glasner@feldmann-mg.com>
parents: 389
diff changeset
775 if path:
0b3ffc34fa5c Begin a jailed configuration with access to a sub-tree of the original configuration
Franz Glasner <f.glasner@feldmann-mg.com>
parents: 389
diff changeset
776 self._pathstr = \
0b3ffc34fa5c Begin a jailed configuration with access to a sub-tree of the original configuration
Franz Glasner <f.glasner@feldmann-mg.com>
parents: 389
diff changeset
777 Configuration._HIER_SEPARATOR.join(
0b3ffc34fa5c Begin a jailed configuration with access to a sub-tree of the original configuration
Franz Glasner <f.glasner@feldmann-mg.com>
parents: 389
diff changeset
778 [Configuration.quote(p) for p in path]) \
0b3ffc34fa5c Begin a jailed configuration with access to a sub-tree of the original configuration
Franz Glasner <f.glasner@feldmann-mg.com>
parents: 389
diff changeset
779 + Configuration._HIER_SEPARATOR
0b3ffc34fa5c Begin a jailed configuration with access to a sub-tree of the original configuration
Franz Glasner <f.glasner@feldmann-mg.com>
parents: 389
diff changeset
780 else:
0b3ffc34fa5c Begin a jailed configuration with access to a sub-tree of the original configuration
Franz Glasner <f.glasner@feldmann-mg.com>
parents: 389
diff changeset
781 self._pathstr = ''
405
af367e1d0950 Allow to rebind a jailed configuration to another "similar" base
Franz Glasner <f.glasner@feldmann-mg.com>
parents: 404
diff changeset
782
406
5286df5aeefe Allow a jailed configuration to return its base configuration via a property
Franz Glasner <f.glasner@feldmann-mg.com>
parents: 405
diff changeset
783 @property
5286df5aeefe Allow a jailed configuration to return its base configuration via a property
Franz Glasner <f.glasner@feldmann-mg.com>
parents: 405
diff changeset
784 def base(self):
426
84d4f82ffe59 Docs: more on jails and sub-jails
Franz Glasner <fzglas.hg@dom66.de>
parents: 419
diff changeset
785 """Ask for the base (aka parent) configuration".
84d4f82ffe59 Docs: more on jails and sub-jails
Franz Glasner <fzglas.hg@dom66.de>
parents: 419
diff changeset
786
84d4f82ffe59 Docs: more on jails and sub-jails
Franz Glasner <fzglas.hg@dom66.de>
parents: 419
diff changeset
787 This configuration is always unjailed.
84d4f82ffe59 Docs: more on jails and sub-jails
Franz Glasner <fzglas.hg@dom66.de>
parents: 419
diff changeset
788
84d4f82ffe59 Docs: more on jails and sub-jails
Franz Glasner <fzglas.hg@dom66.de>
parents: 419
diff changeset
789 """
406
5286df5aeefe Allow a jailed configuration to return its base configuration via a property
Franz Glasner <f.glasner@feldmann-mg.com>
parents: 405
diff changeset
790 return self._base
5286df5aeefe Allow a jailed configuration to return its base configuration via a property
Franz Glasner <f.glasner@feldmann-mg.com>
parents: 405
diff changeset
791
405
af367e1d0950 Allow to rebind a jailed configuration to another "similar" base
Franz Glasner <f.glasner@feldmann-mg.com>
parents: 404
diff changeset
792 def rebind(self, new_base):
af367e1d0950 Allow to rebind a jailed configuration to another "similar" base
Franz Glasner <f.glasner@feldmann-mg.com>
parents: 404
diff changeset
793 """Bind the jail to a new unjailed configuration `new_base`.
af367e1d0950 Allow to rebind a jailed configuration to another "similar" base
Franz Glasner <f.glasner@feldmann-mg.com>
parents: 404
diff changeset
794
af367e1d0950 Allow to rebind a jailed configuration to another "similar" base
Franz Glasner <f.glasner@feldmann-mg.com>
parents: 404
diff changeset
795 The new configuration base also must have an existing path to
af367e1d0950 Allow to rebind a jailed configuration to another "similar" base
Franz Glasner <f.glasner@feldmann-mg.com>
parents: 404
diff changeset
796 the root.
af367e1d0950 Allow to rebind a jailed configuration to another "similar" base
Franz Glasner <f.glasner@feldmann-mg.com>
parents: 404
diff changeset
797
af367e1d0950 Allow to rebind a jailed configuration to another "similar" base
Franz Glasner <f.glasner@feldmann-mg.com>
parents: 404
diff changeset
798 :param Configuration new_base: the new base
af367e1d0950 Allow to rebind a jailed configuration to another "similar" base
Franz Glasner <f.glasner@feldmann-mg.com>
parents: 404
diff changeset
799
af367e1d0950 Allow to rebind a jailed configuration to another "similar" base
Franz Glasner <f.glasner@feldmann-mg.com>
parents: 404
diff changeset
800 """
af367e1d0950 Allow to rebind a jailed configuration to another "similar" base
Franz Glasner <f.glasner@feldmann-mg.com>
parents: 404
diff changeset
801 if new_base.is_jail:
af367e1d0950 Allow to rebind a jailed configuration to another "similar" base
Franz Glasner <f.glasner@feldmann-mg.com>
parents: 404
diff changeset
802 raise TypeError("can only bind to an unjailed configuration")
af367e1d0950 Allow to rebind a jailed configuration to another "similar" base
Franz Glasner <f.glasner@feldmann-mg.com>
parents: 404
diff changeset
803 self._base = new_base
395
0b3ffc34fa5c Begin a jailed configuration with access to a sub-tree of the original configuration
Franz Glasner <f.glasner@feldmann-mg.com>
parents: 389
diff changeset
804 #
0b3ffc34fa5c Begin a jailed configuration with access to a sub-tree of the original configuration
Franz Glasner <f.glasner@feldmann-mg.com>
parents: 389
diff changeset
805 # Early error out if the chroot does not exist but allow
0b3ffc34fa5c Begin a jailed configuration with access to a sub-tree of the original configuration
Franz Glasner <f.glasner@feldmann-mg.com>
parents: 389
diff changeset
806 # degenerated case if `self._path` is empty.
0b3ffc34fa5c Begin a jailed configuration with access to a sub-tree of the original configuration
Franz Glasner <f.glasner@feldmann-mg.com>
parents: 389
diff changeset
807 #
0b3ffc34fa5c Begin a jailed configuration with access to a sub-tree of the original configuration
Franz Glasner <f.glasner@feldmann-mg.com>
parents: 389
diff changeset
808 if self._path:
405
af367e1d0950 Allow to rebind a jailed configuration to another "similar" base
Franz Glasner <f.glasner@feldmann-mg.com>
parents: 404
diff changeset
809 new_base.getvarl(*self._path)
395
0b3ffc34fa5c Begin a jailed configuration with access to a sub-tree of the original configuration
Franz Glasner <f.glasner@feldmann-mg.com>
parents: 389
diff changeset
810
0b3ffc34fa5c Begin a jailed configuration with access to a sub-tree of the original configuration
Franz Glasner <f.glasner@feldmann-mg.com>
parents: 389
diff changeset
811 def getvarl(self, *path, **kwds):
0b3ffc34fa5c Begin a jailed configuration with access to a sub-tree of the original configuration
Franz Glasner <f.glasner@feldmann-mg.com>
parents: 389
diff changeset
812 return self._base.getvarl(*(self._path + path), **kwds)
0b3ffc34fa5c Begin a jailed configuration with access to a sub-tree of the original configuration
Franz Glasner <f.glasner@feldmann-mg.com>
parents: 389
diff changeset
813
418
bb5f11abd12a Implement .getkeysl() and .getkeys() for configuration objects that iterate over all the keys of a configuration value
Franz Glasner <fzglas.hg@dom66.de>
parents: 417
diff changeset
814 def getkeysl(self, *path, **kwds):
bb5f11abd12a Implement .getkeysl() and .getkeys() for configuration objects that iterate over all the keys of a configuration value
Franz Glasner <fzglas.hg@dom66.de>
parents: 417
diff changeset
815 for k in self._base.getkeysl(*(self._path + path), **kwds):
bb5f11abd12a Implement .getkeysl() and .getkeys() for configuration objects that iterate over all the keys of a configuration value
Franz Glasner <fzglas.hg@dom66.de>
parents: 417
diff changeset
816 yield k
bb5f11abd12a Implement .getkeysl() and .getkeys() for configuration objects that iterate over all the keys of a configuration value
Franz Glasner <fzglas.hg@dom66.de>
parents: 417
diff changeset
817
398
b1f82b853290 Jailed configuration: implement more methods: getfirstvarl, getfirstvarl_s, getfirstvar and getfirstvar_s
Franz Glasner <fzglas.hg@dom66.de>
parents: 397
diff changeset
818 def getfirstvarl(self, *paths, **kwds):
b1f82b853290 Jailed configuration: implement more methods: getfirstvarl, getfirstvarl_s, getfirstvar and getfirstvar_s
Franz Glasner <fzglas.hg@dom66.de>
parents: 397
diff changeset
819 real_paths = []
b1f82b853290 Jailed configuration: implement more methods: getfirstvarl, getfirstvarl_s, getfirstvar and getfirstvar_s
Franz Glasner <fzglas.hg@dom66.de>
parents: 397
diff changeset
820 for path in paths:
b1f82b853290 Jailed configuration: implement more methods: getfirstvarl, getfirstvarl_s, getfirstvar and getfirstvar_s
Franz Glasner <fzglas.hg@dom66.de>
parents: 397
diff changeset
821 if isinstance(path, (list, tuple)):
b1f82b853290 Jailed configuration: implement more methods: getfirstvarl, getfirstvarl_s, getfirstvar and getfirstvar_s
Franz Glasner <fzglas.hg@dom66.de>
parents: 397
diff changeset
822 real_paths.append(self._path + path)
b1f82b853290 Jailed configuration: implement more methods: getfirstvarl, getfirstvarl_s, getfirstvar and getfirstvar_s
Franz Glasner <fzglas.hg@dom66.de>
parents: 397
diff changeset
823 elif isinstance(path, dict):
b1f82b853290 Jailed configuration: implement more methods: getfirstvarl, getfirstvarl_s, getfirstvar and getfirstvar_s
Franz Glasner <fzglas.hg@dom66.de>
parents: 397
diff changeset
824 raise TypeError(
b1f82b853290 Jailed configuration: implement more methods: getfirstvarl, getfirstvarl_s, getfirstvar and getfirstvar_s
Franz Glasner <fzglas.hg@dom66.de>
parents: 397
diff changeset
825 "a `dict' is not supported in a jailed configuration")
b1f82b853290 Jailed configuration: implement more methods: getfirstvarl, getfirstvarl_s, getfirstvar and getfirstvar_s
Franz Glasner <fzglas.hg@dom66.de>
parents: 397
diff changeset
826 else:
b1f82b853290 Jailed configuration: implement more methods: getfirstvarl, getfirstvarl_s, getfirstvar and getfirstvar_s
Franz Glasner <fzglas.hg@dom66.de>
parents: 397
diff changeset
827 raise TypeError("a paths item must be a list or tuple")
b1f82b853290 Jailed configuration: implement more methods: getfirstvarl, getfirstvarl_s, getfirstvar and getfirstvar_s
Franz Glasner <fzglas.hg@dom66.de>
parents: 397
diff changeset
828 return self._base.getfirstvarl(*real_paths, **kwds)
b1f82b853290 Jailed configuration: implement more methods: getfirstvarl, getfirstvarl_s, getfirstvar and getfirstvar_s
Franz Glasner <fzglas.hg@dom66.de>
parents: 397
diff changeset
829
395
0b3ffc34fa5c Begin a jailed configuration with access to a sub-tree of the original configuration
Franz Glasner <f.glasner@feldmann-mg.com>
parents: 389
diff changeset
830 def getvarl_s(self, *path, **kwds):
0b3ffc34fa5c Begin a jailed configuration with access to a sub-tree of the original configuration
Franz Glasner <f.glasner@feldmann-mg.com>
parents: 389
diff changeset
831 return self._base.getvarl_s(*(self._path + path), **kwds)
0b3ffc34fa5c Begin a jailed configuration with access to a sub-tree of the original configuration
Franz Glasner <f.glasner@feldmann-mg.com>
parents: 389
diff changeset
832
398
b1f82b853290 Jailed configuration: implement more methods: getfirstvarl, getfirstvarl_s, getfirstvar and getfirstvar_s
Franz Glasner <fzglas.hg@dom66.de>
parents: 397
diff changeset
833 def getfirstvarl_s(self, *paths, **kwds):
b1f82b853290 Jailed configuration: implement more methods: getfirstvarl, getfirstvarl_s, getfirstvar and getfirstvar_s
Franz Glasner <fzglas.hg@dom66.de>
parents: 397
diff changeset
834 real_paths = []
b1f82b853290 Jailed configuration: implement more methods: getfirstvarl, getfirstvarl_s, getfirstvar and getfirstvar_s
Franz Glasner <fzglas.hg@dom66.de>
parents: 397
diff changeset
835 for path in paths:
b1f82b853290 Jailed configuration: implement more methods: getfirstvarl, getfirstvarl_s, getfirstvar and getfirstvar_s
Franz Glasner <fzglas.hg@dom66.de>
parents: 397
diff changeset
836 if isinstance(path, (list, tuple)):
b1f82b853290 Jailed configuration: implement more methods: getfirstvarl, getfirstvarl_s, getfirstvar and getfirstvar_s
Franz Glasner <fzglas.hg@dom66.de>
parents: 397
diff changeset
837 real_paths.append(self._path + path)
b1f82b853290 Jailed configuration: implement more methods: getfirstvarl, getfirstvarl_s, getfirstvar and getfirstvar_s
Franz Glasner <fzglas.hg@dom66.de>
parents: 397
diff changeset
838 elif isinstance(path, dict):
b1f82b853290 Jailed configuration: implement more methods: getfirstvarl, getfirstvarl_s, getfirstvar and getfirstvar_s
Franz Glasner <fzglas.hg@dom66.de>
parents: 397
diff changeset
839 raise TypeError(
b1f82b853290 Jailed configuration: implement more methods: getfirstvarl, getfirstvarl_s, getfirstvar and getfirstvar_s
Franz Glasner <fzglas.hg@dom66.de>
parents: 397
diff changeset
840 "a `dict' is not supported in a jailed configuration")
b1f82b853290 Jailed configuration: implement more methods: getfirstvarl, getfirstvarl_s, getfirstvar and getfirstvar_s
Franz Glasner <fzglas.hg@dom66.de>
parents: 397
diff changeset
841 else:
b1f82b853290 Jailed configuration: implement more methods: getfirstvarl, getfirstvarl_s, getfirstvar and getfirstvar_s
Franz Glasner <fzglas.hg@dom66.de>
parents: 397
diff changeset
842 raise TypeError("a paths item must be a list or tuple")
b1f82b853290 Jailed configuration: implement more methods: getfirstvarl, getfirstvarl_s, getfirstvar and getfirstvar_s
Franz Glasner <fzglas.hg@dom66.de>
parents: 397
diff changeset
843 return self._base.getfirstvarl_s(*real_paths, **kwds)
b1f82b853290 Jailed configuration: implement more methods: getfirstvarl, getfirstvarl_s, getfirstvar and getfirstvar_s
Franz Glasner <fzglas.hg@dom66.de>
parents: 397
diff changeset
844
428
090a25f36a3d FIX: Allow jailed configurations to use correctly use base configurations that use a different "default" marker object.
Franz Glasner <f.glasner@feldmann-mg.com>
parents: 426
diff changeset
845 def getvar(self, varname, **kwds):
090a25f36a3d FIX: Allow jailed configurations to use correctly use base configurations that use a different "default" marker object.
Franz Glasner <f.glasner@feldmann-mg.com>
parents: 426
diff changeset
846 return self._base.getvar(self._pathstr + varname, **kwds)
395
0b3ffc34fa5c Begin a jailed configuration with access to a sub-tree of the original configuration
Franz Glasner <f.glasner@feldmann-mg.com>
parents: 389
diff changeset
847
418
bb5f11abd12a Implement .getkeysl() and .getkeys() for configuration objects that iterate over all the keys of a configuration value
Franz Glasner <fzglas.hg@dom66.de>
parents: 417
diff changeset
848 def getkeys(self, varname):
bb5f11abd12a Implement .getkeysl() and .getkeys() for configuration objects that iterate over all the keys of a configuration value
Franz Glasner <fzglas.hg@dom66.de>
parents: 417
diff changeset
849 for k in self._base.getkeys(self._pathstr + varname):
bb5f11abd12a Implement .getkeysl() and .getkeys() for configuration objects that iterate over all the keys of a configuration value
Franz Glasner <fzglas.hg@dom66.de>
parents: 417
diff changeset
850 yield k
bb5f11abd12a Implement .getkeysl() and .getkeys() for configuration objects that iterate over all the keys of a configuration value
Franz Glasner <fzglas.hg@dom66.de>
parents: 417
diff changeset
851
398
b1f82b853290 Jailed configuration: implement more methods: getfirstvarl, getfirstvarl_s, getfirstvar and getfirstvar_s
Franz Glasner <fzglas.hg@dom66.de>
parents: 397
diff changeset
852 def getfirstvar(self, *varnames, **kwds):
b1f82b853290 Jailed configuration: implement more methods: getfirstvarl, getfirstvarl_s, getfirstvar and getfirstvar_s
Franz Glasner <fzglas.hg@dom66.de>
parents: 397
diff changeset
853 real_varnames = [self._pathstr + vn for vn in varnames]
b1f82b853290 Jailed configuration: implement more methods: getfirstvarl, getfirstvarl_s, getfirstvar and getfirstvar_s
Franz Glasner <fzglas.hg@dom66.de>
parents: 397
diff changeset
854 return self._base.getfirstvar(*real_varnames, **kwds)
b1f82b853290 Jailed configuration: implement more methods: getfirstvarl, getfirstvarl_s, getfirstvar and getfirstvar_s
Franz Glasner <fzglas.hg@dom66.de>
parents: 397
diff changeset
855
428
090a25f36a3d FIX: Allow jailed configurations to use correctly use base configurations that use a different "default" marker object.
Franz Glasner <f.glasner@feldmann-mg.com>
parents: 426
diff changeset
856 def getvar_s(self, varname, **kwds):
090a25f36a3d FIX: Allow jailed configurations to use correctly use base configurations that use a different "default" marker object.
Franz Glasner <f.glasner@feldmann-mg.com>
parents: 426
diff changeset
857 return self._base.getvar_s(self._pathstr + varname, **kwds)
398
b1f82b853290 Jailed configuration: implement more methods: getfirstvarl, getfirstvarl_s, getfirstvar and getfirstvar_s
Franz Glasner <fzglas.hg@dom66.de>
parents: 397
diff changeset
858
b1f82b853290 Jailed configuration: implement more methods: getfirstvarl, getfirstvarl_s, getfirstvar and getfirstvar_s
Franz Glasner <fzglas.hg@dom66.de>
parents: 397
diff changeset
859 def getfirstvar_s(self, *varnames, **kwds):
b1f82b853290 Jailed configuration: implement more methods: getfirstvarl, getfirstvarl_s, getfirstvar and getfirstvar_s
Franz Glasner <fzglas.hg@dom66.de>
parents: 397
diff changeset
860 real_varnames = [self._pathstr + vn for vn in varnames]
b1f82b853290 Jailed configuration: implement more methods: getfirstvarl, getfirstvarl_s, getfirstvar and getfirstvar_s
Franz Glasner <fzglas.hg@dom66.de>
parents: 397
diff changeset
861 return self._base.getfirstvar_s(*real_varnames, **kwds)
417
83d537f1dfbb Implement sub-jails: allow to get a jailed configuration from a jail
Franz Glasner <fzglas.hg@dom66.de>
parents: 416
diff changeset
862
83d537f1dfbb Implement sub-jails: allow to get a jailed configuration from a jail
Franz Glasner <fzglas.hg@dom66.de>
parents: 416
diff changeset
863 def jailed(self, rootpath=None, root=None, bind_root=True):
83d537f1dfbb Implement sub-jails: allow to get a jailed configuration from a jail
Franz Glasner <fzglas.hg@dom66.de>
parents: 416
diff changeset
864 """Return a "jailed" configuration that effectively is a
83d537f1dfbb Implement sub-jails: allow to get a jailed configuration from a jail
Franz Glasner <fzglas.hg@dom66.de>
parents: 416
diff changeset
865 subjail of the current jail
83d537f1dfbb Implement sub-jails: allow to get a jailed configuration from a jail
Franz Glasner <fzglas.hg@dom66.de>
parents: 416
diff changeset
866
83d537f1dfbb Implement sub-jails: allow to get a jailed configuration from a jail
Franz Glasner <fzglas.hg@dom66.de>
parents: 416
diff changeset
867 For a more complete description see :meth:`.Configuration.jailed`.
83d537f1dfbb Implement sub-jails: allow to get a jailed configuration from a jail
Franz Glasner <fzglas.hg@dom66.de>
parents: 416
diff changeset
868
83d537f1dfbb Implement sub-jails: allow to get a jailed configuration from a jail
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869 """
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870 if rootpath is not None and root is not None:
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871 raise ValueError("only one of `rootpath' or `root' can be given")
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872 if rootpath is None and root is None:
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873 raise ValueError("one of `rootpath' or `root' must be given")
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874 if rootpath is not None and not isinstance(rootpath, (list, tuple)):
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875 raise TypeError("`rootpath' must be a list or a tuple")
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876 if root is not None:
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877 # convert to path
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878 varns, varname = self._base._split_ns(root)
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879 if varns:
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880 raise ValueError(
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881 "sub-jails do not support namespaces")
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882 if varname:
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883 rootpath = [
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884 self._base.unquote(p) for p in varname.split(
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885 self._base._HIER_SEPARATOR)
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886 ]
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887 else:
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888 rootpath = tuple()
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889 if self._path:
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890 new_rootpath = self._path + tuple(rootpath)
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891 else:
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892 new_rootpath = rootpath
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893 sjc = _JailedConfiguration(*new_rootpath)
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894 if bind_root:
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895 sjc.rebind(self._base)
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896 return sjc