Mercurial > hgrepos > Python > libs > ConfigMix
annotate configmix/config.py @ 519:df0bb39617d6
Docs
| author | Franz Glasner <fzglas.hg@dom66.de> |
|---|---|
| date | Sun, 19 Dec 2021 18:37:37 +0100 |
| parents | 55b8aed70f7d |
| children | 1001701be682 |
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1 # -*- coding: utf-8 -*- |
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2 # :- |
| 302 | 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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8 |
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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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29 |
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30 from .variables import lookup_varns, lookup_filter |
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31 from .compat import u, uchr, n, str_and_u, PY2 |
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32 from .constants import REF_NAMESPACE, NONE_FILTER, EMPTY_FILTER |
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33 |
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34 |
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35 _MARKER = object() |
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36 _MISSING = object() |
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37 |
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38 |
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39 class _AttributeDict(ConfigurationBase): |
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40 |
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41 def __getattr__(self, name): |
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42 try: |
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43 v = self[name] |
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44 except KeyError: |
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45 raise AttributeError("%s has no attribute %r" % (type(self), name)) |
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46 else: |
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47 # Wrap a dict into another dict with attribute access support |
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48 if isinstance(v, dict): |
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49 return _AttributeDict(v) |
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50 else: |
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51 return v |
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52 |
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53 |
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54 class CoercingMethodsMixin(object): |
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55 |
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56 """Mixin to provide some common implementations for retrieval |
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57 methods that convert return values to a fixed type (int, bool, |
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58 float). |
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59 |
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60 Both :class:`~.Configuration` and :class:`~._JailedConfiguration` use |
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61 this mixin. |
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62 |
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63 """ |
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64 |
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65 def getintvarl_s(self, *path, **kwds): |
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66 """Get a (possibly substituted) variable and coerce text to a |
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67 number. |
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68 |
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69 """ |
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70 s = self.getvarl_s(*path, **kwds) |
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71 if isinstance(s, _TEXTTYPE): |
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72 return int(s, 0) |
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73 else: |
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74 return s |
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75 |
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76 def getfirstintvarl_s(self, *paths, **kwds): |
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77 """Get a (possibly substituted) variable and coerce text to a |
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78 number. |
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79 |
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80 """ |
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81 s = self.getfirstvarl_s(*paths, **kwds) |
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82 if isinstance(s, _TEXTTYPE): |
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83 return int(s, 0) |
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84 else: |
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85 return s |
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86 |
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87 def getintvar_s(self, varname, default=_MARKER): |
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88 """Get a (possibly substituted) variable and coerce text to a |
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89 number. |
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90 |
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91 """ |
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92 s = self.getvar_s(varname, default=default) |
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93 if isinstance(s, _TEXTTYPE): |
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94 return int(s, 0) |
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95 else: |
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96 return s |
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97 |
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98 def getfirstintvar_s(self, *varnames, **kwds): |
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99 """A variant of :meth:`~.getintvar_s` that returns the first found |
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100 variable in the list of given variables in `varnames`. |
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101 |
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102 """ |
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103 s = self.getfirstvar_s(*varnames, **kwds) |
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104 if isinstance(s, _TEXTTYPE): |
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105 return int(s, 0) |
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106 else: |
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107 return s |
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108 |
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109 def getboolvarl_s(self, *path, **kwds): |
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110 """Get a (possibly substituted) variable and convert text to a |
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111 boolean |
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112 |
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113 """ |
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114 s = self.getvarl_s(*path, **kwds) |
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115 if isinstance(s, _TEXTTYPE): |
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116 sl = s.strip().lower() |
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117 if sl not in self._BOOL_CVT: |
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118 raise ValueError("Not a boolean: %r" % (s, )) |
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119 return self._BOOL_CVT[sl] |
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120 else: |
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121 return s |
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122 |
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123 def getfirstboolvarl_s(self, *paths, **kwds): |
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124 """Get a (possibly substituted) variable and convert text to a |
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125 boolean |
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126 |
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127 """ |
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128 s = self.getfirstvarl_s(*paths, **kwds) |
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129 if isinstance(s, _TEXTTYPE): |
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130 sl = s.strip().lower() |
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131 if sl not in self._BOOL_CVT: |
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132 raise ValueError("Not a boolean: %r" % (s, )) |
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133 return self._BOOL_CVT[sl] |
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134 else: |
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135 return s |
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136 |
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137 def getboolvar_s(self, varname, default=_MARKER): |
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138 """Get a (possibly substituted) variable and convert text to a |
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139 boolean |
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140 |
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141 """ |
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142 s = self.getvar_s(varname, default=default) |
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143 if isinstance(s, _TEXTTYPE): |
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144 sl = s.strip().lower() |
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145 if sl not in self._BOOL_CVT: |
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146 raise ValueError("Not a boolean: %r" % (s, )) |
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147 return self._BOOL_CVT[sl] |
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148 else: |
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149 return s |
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150 |
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151 def getfirstboolvar_s(self, *varnames, **kwds): |
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152 """A variant of :meth:`~.getboolvar_s` that returns the first found |
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153 variable in the list of given variables in `varnames`. |
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154 |
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155 """ |
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156 s = self.getfirstvar_s(*varnames, **kwds) |
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157 if isinstance(s, _TEXTTYPE): |
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158 sl = s.strip().lower() |
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159 if sl not in self._BOOL_CVT: |
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160 raise ValueError("Not a boolean: %r" % (s, )) |
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161 return self._BOOL_CVT[sl] |
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162 else: |
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163 return s |
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164 |
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165 # Conversion of booleans |
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166 _BOOL_CVT = { |
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167 u('1'): True, u('yes'): True, u('true'): True, u('on'): True, |
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168 u('0'): False, u('no'): False, u('false'): False, u('off'): False |
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169 } |
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170 |
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171 def getfloatvarl_s(self, *path, **kwds): |
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172 """Get a (possibly substituted) variable and convert text to a |
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173 float |
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174 |
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175 """ |
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176 s = self.getvarl_s(*path, **kwds) |
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177 if isinstance(s, _TEXTTYPE): |
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178 return float(s) |
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179 else: |
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180 return s |
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181 |
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182 def getfirstfloatvarl_s(self, *path, **kwds): |
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183 """Get a (possibly substituted) variable and convert text to a |
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184 float |
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185 |
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186 """ |
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187 s = self.getfirstvarl_s(*path, **kwds) |
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188 if isinstance(s, _TEXTTYPE): |
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189 return float(s) |
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190 else: |
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191 return s |
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192 |
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193 def getfloatvar_s(self, varname, default=_MARKER): |
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194 """Get a (possibly substituted) variable and convert text to a |
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195 float |
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196 |
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197 """ |
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198 s = self.getvar_s(varname, default) |
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199 if isinstance(s, _TEXTTYPE): |
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200 return float(s) |
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201 else: |
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202 return s |
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203 |
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204 def getfirstfloatvar_s(self, varname, default=_MARKER): |
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205 """Get a (possibly substituted) variable and convert text to a |
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206 float |
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207 |
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208 """ |
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209 s = self.getfirstvar_s(varname, default) |
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210 if isinstance(s, _TEXTTYPE): |
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211 return float(s) |
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212 else: |
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213 return s |
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214 |
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215 |
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216 # Speed |
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217 _EMPTY_STR = u("") |
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218 _TEXTTYPE = type(_EMPTY_STR) |
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219 _STARTTOK = u(b"{{") |
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220 _ENDTOK = u(b"}}") |
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221 _HIER_SEPARATOR = u(b'.') |
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222 _NS_SEPARATOR = u(b':') |
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223 _FILTER_SEPARATOR = u(b'|') |
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224 _STARTTOK_REF = _STARTTOK + REF_NAMESPACE + _NS_SEPARATOR |
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225 _ENDTOK_REF = _ENDTOK |
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226 _DOT = u(b'.') |
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227 _QUOTE = u(b'%') |
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228 _QUOTE_x = u(b'x') |
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229 _QUOTE_u = u(b'u') |
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230 _QUOTE_U = u(b'U') |
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231 _COMMENT = u(b'#') |
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232 _QUOTE_MAP = { |
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233 0x25: u(b'%x25'), # _QUOTE |
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234 0x2e: u(b'%x2e'), # _DOT |
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235 0x3a: u(b'%x3a'), # _NS_SEPARATOR |
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236 0x23: u(b'%x23'), # _COMMENT / anchor |
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237 0x7c: u(b'%x7c'), # _FILTER_SEPARATOR |
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238 0x22: u(b'%x22'), |
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239 0x27: u(b'%x27'), |
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240 0x7b: u(b'%x7b'), |
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241 0x7d: u(b'%x7d'), |
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242 0x5b: u(b'%x5b'), |
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243 0x5d: u(b'%x5d'), |
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244 } |
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245 _QUOTE_SAFE = u(b'abcdefghijklmnopqrstuvwxyz' |
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246 b'ABCDEFGHIJKLMNOPQRSTUVWXYZ' |
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247 b'0123456789' |
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248 b'-_@!$&/\\()=?*+~;,<>^') |
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249 """Mostly used configuration key characters that do not need any quoting |
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250 |
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251 """ |
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252 |
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253 |
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254 def quote(s): |
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255 """Replace important special characters in string `s` by replacing |
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256 them with ``%xNN`` where `NN` are the two hexadecimal digits of the |
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257 characters unicode codepoint value. |
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258 |
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259 Handled are the important special chars: ``%``, ``.``, ``:``, |
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260 ``#``; ``'``, ``"``, ``|``, ``{``, ``}``, ``[`` and ``]``. |
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261 |
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262 See also the :ref:`quoting` section. |
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263 |
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264 """ |
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265 # Quick check whether all of the chars are in _QUOTE_SAFE |
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266 if not s.lstrip(_QUOTE_SAFE): |
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267 return s |
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268 |
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269 # Slow path |
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270 re_encode = False |
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271 if PY2: |
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272 # Use the Unicode translation variant in PY2 |
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273 if isinstance(s, str): |
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274 s = s.decode("latin1") |
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275 re_encode = True |
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276 s = s.translate(_QUOTE_MAP) |
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277 if re_encode: |
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278 return s.encode("latin1") |
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279 else: |
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280 return s |
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281 |
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282 |
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283 def unquote(s): |
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284 """Unquote the content of `s`: handle all patterns ``%xNN``, |
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285 ``%uNNNN`` or ``%UNNNNNNNN``. |
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286 |
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287 This is the inverse of :func:`.quote`. |
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288 |
|
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289 """ |
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290 if _QUOTE not in s: |
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291 return s |
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292 parts = s.split(_QUOTE) |
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293 res = [parts[0]] |
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294 res_append = res.append |
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295 for p in parts[1:]: |
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296 try: |
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297 qc = p[0] |
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298 except IndexError: |
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299 raise ValueError("unknown quote syntax string: {}".format(s)) |
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300 if qc == _QUOTE_x: |
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301 if len(p) < 3: |
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302 raise ValueError("quote syntax: length too small") |
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303 res_append(uchr(int(p[1:3], 16))) |
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304 res_append(p[3:]) |
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305 elif qc == _QUOTE_u: |
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306 if len(p) < 5: |
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307 raise ValueError("quote syntax: length too small") |
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308 res_append(uchr(int(p[1:5], 16))) |
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309 res_append(p[5:]) |
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310 elif qc == _QUOTE_U: |
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311 if len(p) < 9: |
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312 raise ValueError("quote syntax: length too small") |
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313 res_append(uchr(int(p[1:9], 16))) |
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314 res_append(p[9:]) |
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315 else: |
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316 raise ValueError("unknown quote syntax string: {}".format(s)) |
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317 return _EMPTY_STR.join(res) |
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318 |
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319 |
|
412
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320 class Configuration(CoercingMethodsMixin, _AttributeDict): |
|
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321 |
| 18 | 322 """The configuration dictionary with attribute support or |
| 323 variable substitution. | |
| 324 | |
| 322 | 325 .. note:: When retrieving by attribute names variables will *not* |
| 18 | 326 substituted. |
| 327 | |
| 328 """ | |
| 329 | |
|
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330 is_jail = False |
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331 """Flag to show that this is not a jail for another configuration""" |
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332 |
|
499
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333 def __init__(self, *args, **kwds): |
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334 # |
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335 # PY2.7 compat: must be set before calling the superclass' __init__ |
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336 # |
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337 self.__cache = {} |
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338 super(Configuration, self).__init__(*args, **kwds) |
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339 |
|
506
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340 def clear_cache(self): |
| 507 | 341 """Clear the internal lookup cache""" |
|
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342 self.__cache.clear() |
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343 |
|
437
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344 def __getitem__(self, key): |
| 469 | 345 """Mapping and list interface that forwards to :meth:`~.getvarl_s` |
|
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346 |
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347 """ |
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348 if isinstance(key, (tuple, list)): |
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349 return self.getvarl_s(*key) |
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350 else: |
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351 return self.getvarl_s(key) |
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352 |
|
442
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353 def get(self, key, default=None): |
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354 """Mapping interface that forwards to :meth:`~.getvarl_s` |
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355 |
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356 """ |
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357 if isinstance(key, (tuple, list)): |
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358 return self.getvarl_s(*key, default=default) |
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359 else: |
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360 return self.getvarl_s(key, default=default) |
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361 |
|
439
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362 def __contains__(self, key): |
| 469 | 363 """Containment test""" |
|
439
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364 if isinstance(key, (tuple, list)): |
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365 # No namespace and quoting support here |
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366 try: |
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367 self._lookupvar(*key) |
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368 except KeyError: |
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369 return False |
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370 else: |
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371 return True |
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372 else: |
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373 return super(Configuration, self).__contains__(key) |
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374 |
|
443
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375 def getitem_ns(self, key): |
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376 """Just forward to the *original* :meth:`dict.__getitem__`. |
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377 |
|
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378 No variable interpolation and key path access. |
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379 |
|
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380 """ |
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381 return super(Configuration, self).__getitem__(key) |
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382 |
|
517
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383 def items(self): |
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384 """Items without interpolation""" |
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385 for k in self: |
|
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386 yield (k, self.getitem_ns(k)) |
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387 |
|
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388 def values(self): |
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389 """Values without interpolation""" |
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390 for k in self: |
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391 yield self.getitem_ns(k) |
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392 |
|
382
24db29162d09
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381
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393 def getvarl(self, *path, **kwds): |
|
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394 """Get a variable where the hierarchy is given in `path` as sequence |
|
380
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395 and the namespace is given in the `namespace` keyword argument. |
|
314
043a6412be3c
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396 |
|
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397 No variable interpolation is done and no filters are applied. |
|
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398 |
|
382
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399 Quoting of `path` and `namespace` is *not* needed and wrong. |
| 333 | 400 |
|
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401 """ |
|
321
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402 default = kwds.pop("default", _MARKER) |
|
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403 namespace = kwds.pop("namespace", None) |
|
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404 try: |
|
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405 if not namespace: |
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406 lookupfn = self._lookupvar |
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407 else: |
|
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408 if namespace == REF_NAMESPACE: |
|
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409 lookupfn = self._lookupref |
|
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410 else: |
|
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411 lookupfn = lookup_varns(namespace) |
|
382
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412 varvalue = lookupfn(*path) |
|
314
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413 except KeyError: |
|
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414 if default is _MARKER: |
|
382
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415 raise KeyError("Variable %r not found" % (path,)) |
|
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416 else: |
|
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417 return default |
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418 else: |
|
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419 return varvalue |
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420 |
|
418
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421 def getkeysl(self, *path, **kwds): |
|
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422 """Yield the keys of a variable value. |
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423 |
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424 :rtype: A generator |
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425 :raise KeyError: |
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426 |
|
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427 .. note:: Dictionary keys are not subject to interpolation. |
|
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428 |
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429 """ |
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430 if "default" in kwds: |
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431 raise TypeError("got unexpected keyword argument: default") |
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432 for k in self.getvarl(*path, **kwds).keys(): |
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433 yield k |
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434 |
|
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435 def getfirstvarl(self, *paths, **kwds): |
|
385
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436 """A variant of :meth:`~.getvarl` that returns the first found |
|
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437 variable in the `paths` list. |
|
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|
438 |
|
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439 Every item in `paths` is either a `tuple` or `list` or a `dict`. |
|
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440 If the path item is a `dict` then it must have two keys "namespace" |
|
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441 and "path". |
|
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442 If the path item is a `list` or `tuple` then the namespace is assumed |
|
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443 to be `None`. |
|
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444 |
| 389 | 445 Note that a caller that wants to use variables from a non-default |
| 446 namespace must use a sequence of dicts. | |
| 447 | |
|
385
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448 No variable interpolation is done and no filters are applied. |
|
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|
449 |
|
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changeset
|
450 Quoting of anything in `paths` is *not* needed and wrong. |
|
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diff
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|
451 |
|
395
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diff
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|
452 """ |
|
381
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changeset
|
453 default = kwds.pop("default", _MARKER) |
|
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diff
changeset
|
454 for path in paths: |
|
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diff
changeset
|
455 if isinstance(path, (list, tuple)): |
|
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changeset
|
456 try: |
|
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|
457 varvalue = self.getvarl(*path) |
|
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|
458 except KeyError: |
|
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diff
changeset
|
459 pass |
|
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diff
changeset
|
460 else: |
|
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Implemented Configuration.getfirstvarl() and Configuration.getfirstvarl_s()
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parents:
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changeset
|
461 return varvalue |
|
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diff
changeset
|
462 elif isinstance(path, dict): |
|
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Implemented Configuration.getfirstvarl() and Configuration.getfirstvarl_s()
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parents:
380
diff
changeset
|
463 try: |
|
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diff
changeset
|
464 namespace = path["namespace"] |
|
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Implemented Configuration.getfirstvarl() and Configuration.getfirstvarl_s()
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diff
changeset
|
465 p = path["path"] |
|
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Implemented Configuration.getfirstvarl() and Configuration.getfirstvarl_s()
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diff
changeset
|
466 except KeyError: |
|
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Implemented Configuration.getfirstvarl() and Configuration.getfirstvarl_s()
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diff
changeset
|
467 raise TypeError("a paths dict item must have a `path'" |
|
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Implemented Configuration.getfirstvarl() and Configuration.getfirstvarl_s()
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parents:
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diff
changeset
|
468 " and a `namespace' key") |
|
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Implemented Configuration.getfirstvarl() and Configuration.getfirstvarl_s()
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parents:
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diff
changeset
|
469 else: |
|
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Implemented Configuration.getfirstvarl() and Configuration.getfirstvarl_s()
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parents:
380
diff
changeset
|
470 try: |
|
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Implemented Configuration.getfirstvarl() and Configuration.getfirstvarl_s()
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diff
changeset
|
471 varvalue = self.getvarl(*p, namespace=namespace) |
|
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Implemented Configuration.getfirstvarl() and Configuration.getfirstvarl_s()
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parents:
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changeset
|
472 except KeyError: |
|
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Implemented Configuration.getfirstvarl() and Configuration.getfirstvarl_s()
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parents:
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diff
changeset
|
473 pass |
|
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Implemented Configuration.getfirstvarl() and Configuration.getfirstvarl_s()
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parents:
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diff
changeset
|
474 else: |
|
fe3dfd687621
Implemented Configuration.getfirstvarl() and Configuration.getfirstvarl_s()
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parents:
380
diff
changeset
|
475 return varvalue |
|
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Implemented Configuration.getfirstvarl() and Configuration.getfirstvarl_s()
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parents:
380
diff
changeset
|
476 else: |
|
fe3dfd687621
Implemented Configuration.getfirstvarl() and Configuration.getfirstvarl_s()
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parents:
380
diff
changeset
|
477 raise TypeError("a paths item must be a dict, list or tuple") |
|
fe3dfd687621
Implemented Configuration.getfirstvarl() and Configuration.getfirstvarl_s()
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parents:
380
diff
changeset
|
478 if default is _MARKER: |
|
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Implemented Configuration.getfirstvarl() and Configuration.getfirstvarl_s()
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parents:
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diff
changeset
|
479 raise KeyError( |
|
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Implemented Configuration.getfirstvarl() and Configuration.getfirstvarl_s()
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parents:
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diff
changeset
|
480 "none of the given variables found: %r" % (paths,)) |
|
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Implemented Configuration.getfirstvarl() and Configuration.getfirstvarl_s()
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parents:
380
diff
changeset
|
481 else: |
|
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Implemented Configuration.getfirstvarl() and Configuration.getfirstvarl_s()
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parents:
380
diff
changeset
|
482 return default |
|
fe3dfd687621
Implemented Configuration.getfirstvarl() and Configuration.getfirstvarl_s()
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parents:
380
diff
changeset
|
483 |
|
16
f85dc4677c01
Implemented the real configuration dictionary with attribute access or
Franz Glasner <hg@dom66.de>
parents:
diff
changeset
|
484 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
|
485 """Get a variable of the form ``[ns:][[key1.]key2.]name`` - including |
|
16
f85dc4677c01
Implemented the real configuration dictionary with attribute access or
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parents:
diff
changeset
|
486 variables from other namespaces. |
|
f85dc4677c01
Implemented the real configuration dictionary with attribute access or
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parents:
diff
changeset
|
487 |
|
202
2e66178a09d8
Docu: Ban "keyword expansion" -- use "variable interpolation" instead
Franz Glasner <fzglas.hg@dom66.de>
parents:
156
diff
changeset
|
488 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
|
489 |
| 333 | 490 Special characters (e.g. ``:`` and ``.``) must be quoted when using |
| 491 the default namespace. | |
| 492 | |
|
502
4f90e1eb7af8
Make quote() and unquote() module globals and also export from configmix
Franz Glasner <fzglas.hg@dom66.de>
parents:
500
diff
changeset
|
493 See also :func:`.quote`. |
| 333 | 494 |
|
16
f85dc4677c01
Implemented the real configuration dictionary with attribute access or
Franz Glasner <hg@dom66.de>
parents:
diff
changeset
|
495 """ |
|
f85dc4677c01
Implemented the real configuration dictionary with attribute access or
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parents:
diff
changeset
|
496 varns, varname = self._split_ns(varname) |
|
314
043a6412be3c
Implemented new access methods .getvarl() and .getvarl_s
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311
diff
changeset
|
497 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
|
498 if varname: |
|
511
93a5346907ef
Using generator expressions to directly create tuples is a not so good idea performance-wise.
Franz Glasner <fzglas.hg@dom66.de>
parents:
510
diff
changeset
|
499 varnameparts = tuple([unquote(vp) |
|
93a5346907ef
Using generator expressions to directly create tuples is a not so good idea performance-wise.
Franz Glasner <fzglas.hg@dom66.de>
parents:
510
diff
changeset
|
500 for vp in varname.split(_HIER_SEPARATOR)]) |
|
419
079a82129110
Allow the empty variable name to retrieve the root configuration object
Franz Glasner <fzglas.hg@dom66.de>
parents:
418
diff
changeset
|
501 else: |
|
079a82129110
Allow the empty variable name to retrieve the root configuration object
Franz Glasner <fzglas.hg@dom66.de>
parents:
418
diff
changeset
|
502 varnameparts = tuple() |
|
314
043a6412be3c
Implemented new access methods .getvarl() and .getvarl_s
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diff
changeset
|
503 else: |
|
043a6412be3c
Implemented new access methods .getvarl() and .getvarl_s
Franz Glasner <fzglas.hg@dom66.de>
parents:
311
diff
changeset
|
504 varnameparts = (varname,) |
|
364
1941f0188e81
FIX: Handle a "default" keyword parameter in ".getvar()" properly.
Franz Glasner <fzglas.hg@dom66.de>
parents:
357
diff
changeset
|
505 return self.getvarl(*varnameparts, namespace=varns, default=default) |
|
314
043a6412be3c
Implemented new access methods .getvarl() and .getvarl_s
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311
diff
changeset
|
506 |
|
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
|
507 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
|
508 """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
|
509 |
|
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
|
510 :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
|
511 :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
|
512 |
|
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
|
513 .. 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
|
514 |
|
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
|
515 """ |
|
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
|
516 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
|
517 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
|
518 |
|
368
4ee53f6fcac1
Implement ".getfirstvar()" and ".getfirstvar_s()".
Franz Glasner <fzglas.hg@dom66.de>
parents:
364
diff
changeset
|
519 def getfirstvar(self, *varnames, **kwds): |
|
4ee53f6fcac1
Implement ".getfirstvar()" and ".getfirstvar_s()".
Franz Glasner <fzglas.hg@dom66.de>
parents:
364
diff
changeset
|
520 """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
|
521 in the list of given variables in `varnames`. |
|
4ee53f6fcac1
Implement ".getfirstvar()" and ".getfirstvar_s()".
Franz Glasner <fzglas.hg@dom66.de>
parents:
364
diff
changeset
|
522 |
|
4ee53f6fcac1
Implement ".getfirstvar()" and ".getfirstvar_s()".
Franz Glasner <fzglas.hg@dom66.de>
parents:
364
diff
changeset
|
523 """ |
|
4ee53f6fcac1
Implement ".getfirstvar()" and ".getfirstvar_s()".
Franz Glasner <fzglas.hg@dom66.de>
parents:
364
diff
changeset
|
524 default = kwds.pop("default", _MARKER) |
|
4ee53f6fcac1
Implement ".getfirstvar()" and ".getfirstvar_s()".
Franz Glasner <fzglas.hg@dom66.de>
parents:
364
diff
changeset
|
525 for varname in varnames: |
|
4ee53f6fcac1
Implement ".getfirstvar()" and ".getfirstvar_s()".
Franz Glasner <fzglas.hg@dom66.de>
parents:
364
diff
changeset
|
526 try: |
|
4ee53f6fcac1
Implement ".getfirstvar()" and ".getfirstvar_s()".
Franz Glasner <fzglas.hg@dom66.de>
parents:
364
diff
changeset
|
527 varvalue = self.getvar(varname) |
|
4ee53f6fcac1
Implement ".getfirstvar()" and ".getfirstvar_s()".
Franz Glasner <fzglas.hg@dom66.de>
parents:
364
diff
changeset
|
528 except KeyError: |
|
4ee53f6fcac1
Implement ".getfirstvar()" and ".getfirstvar_s()".
Franz Glasner <fzglas.hg@dom66.de>
parents:
364
diff
changeset
|
529 pass |
|
4ee53f6fcac1
Implement ".getfirstvar()" and ".getfirstvar_s()".
Franz Glasner <fzglas.hg@dom66.de>
parents:
364
diff
changeset
|
530 else: |
|
4ee53f6fcac1
Implement ".getfirstvar()" and ".getfirstvar_s()".
Franz Glasner <fzglas.hg@dom66.de>
parents:
364
diff
changeset
|
531 return varvalue |
|
4ee53f6fcac1
Implement ".getfirstvar()" and ".getfirstvar_s()".
Franz Glasner <fzglas.hg@dom66.de>
parents:
364
diff
changeset
|
532 if default is _MARKER: |
|
4ee53f6fcac1
Implement ".getfirstvar()" and ".getfirstvar_s()".
Franz Glasner <fzglas.hg@dom66.de>
parents:
364
diff
changeset
|
533 raise KeyError( |
|
4ee53f6fcac1
Implement ".getfirstvar()" and ".getfirstvar_s()".
Franz Glasner <fzglas.hg@dom66.de>
parents:
364
diff
changeset
|
534 "none of the given variables found: %r" % (varnames,)) |
|
4ee53f6fcac1
Implement ".getfirstvar()" and ".getfirstvar_s()".
Franz Glasner <fzglas.hg@dom66.de>
parents:
364
diff
changeset
|
535 else: |
|
4ee53f6fcac1
Implement ".getfirstvar()" and ".getfirstvar_s()".
Franz Glasner <fzglas.hg@dom66.de>
parents:
364
diff
changeset
|
536 return default |
|
4ee53f6fcac1
Implement ".getfirstvar()" and ".getfirstvar_s()".
Franz Glasner <fzglas.hg@dom66.de>
parents:
364
diff
changeset
|
537 |
|
382
24db29162d09
Renamed "names" arguments into the more proper "path"
Franz Glasner <fzglas.hg@dom66.de>
parents:
381
diff
changeset
|
538 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
|
539 """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
|
540 |
|
382
24db29162d09
Renamed "names" arguments into the more proper "path"
Franz Glasner <fzglas.hg@dom66.de>
parents:
381
diff
changeset
|
541 `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
|
542 :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
|
543 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
|
544 applied. |
|
043a6412be3c
Implemented new access methods .getvarl() and .getvarl_s
Franz Glasner <fzglas.hg@dom66.de>
parents:
311
diff
changeset
|
545 |
|
043a6412be3c
Implemented new access methods .getvarl() and .getvarl_s
Franz Glasner <fzglas.hg@dom66.de>
parents:
311
diff
changeset
|
546 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
|
547 |
|
043a6412be3c
Implemented new access methods .getvarl() and .getvarl_s
Franz Glasner <fzglas.hg@dom66.de>
parents:
311
diff
changeset
|
548 """ |
|
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
|
549 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
|
550 namespace = kwds.pop("namespace", None) |
|
16
f85dc4677c01
Implemented the real configuration dictionary with attribute access or
Franz Glasner <hg@dom66.de>
parents:
diff
changeset
|
551 try: |
|
382
24db29162d09
Renamed "names" arguments into the more proper "path"
Franz Glasner <fzglas.hg@dom66.de>
parents:
381
diff
changeset
|
552 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
|
553 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
|
554 except KeyError: |
|
f85dc4677c01
Implemented the real configuration dictionary with attribute access or
Franz Glasner <hg@dom66.de>
parents:
diff
changeset
|
555 if default is _MARKER: |
|
314
043a6412be3c
Implemented new access methods .getvarl() and .getvarl_s
Franz Glasner <fzglas.hg@dom66.de>
parents:
311
diff
changeset
|
556 raise |
|
16
f85dc4677c01
Implemented the real configuration dictionary with attribute access or
Franz Glasner <hg@dom66.de>
parents:
diff
changeset
|
557 else: |
|
f85dc4677c01
Implemented the real configuration dictionary with attribute access or
Franz Glasner <hg@dom66.de>
parents:
diff
changeset
|
558 return default |
|
f85dc4677c01
Implemented the real configuration dictionary with attribute access or
Franz Glasner <hg@dom66.de>
parents:
diff
changeset
|
559 |
|
381
fe3dfd687621
Implemented Configuration.getfirstvarl() and Configuration.getfirstvarl_s()
Franz Glasner <fzglas.hg@dom66.de>
parents:
380
diff
changeset
|
560 def getfirstvarl_s(self, *paths, **kwds): |
|
388
13427f37abab
Docs: document Configuration.getfirstvarl_s()
Franz Glasner <fzglas.hg@dom66.de>
parents:
385
diff
changeset
|
561 """A variant of :meth:`~.getfirstvarl` that does variable |
|
13427f37abab
Docs: document Configuration.getfirstvarl_s()
Franz Glasner <fzglas.hg@dom66.de>
parents:
385
diff
changeset
|
562 interpolation. |
|
13427f37abab
Docs: document Configuration.getfirstvarl_s()
Franz Glasner <fzglas.hg@dom66.de>
parents:
385
diff
changeset
|
563 |
|
13427f37abab
Docs: document Configuration.getfirstvarl_s()
Franz Glasner <fzglas.hg@dom66.de>
parents:
385
diff
changeset
|
564 `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
|
565 But variables will be interpolated |
|
13427f37abab
Docs: document Configuration.getfirstvarl_s()
Franz Glasner <fzglas.hg@dom66.de>
parents:
385
diff
changeset
|
566 recursively within the variable values and filters are |
|
13427f37abab
Docs: document Configuration.getfirstvarl_s()
Franz Glasner <fzglas.hg@dom66.de>
parents:
385
diff
changeset
|
567 applied. |
|
13427f37abab
Docs: document Configuration.getfirstvarl_s()
Franz Glasner <fzglas.hg@dom66.de>
parents:
385
diff
changeset
|
568 |
|
13427f37abab
Docs: document Configuration.getfirstvarl_s()
Franz Glasner <fzglas.hg@dom66.de>
parents:
385
diff
changeset
|
569 For more details see chapter :ref:`variable-interpolation`. |
|
13427f37abab
Docs: document Configuration.getfirstvarl_s()
Franz Glasner <fzglas.hg@dom66.de>
parents:
385
diff
changeset
|
570 |
|
13427f37abab
Docs: document Configuration.getfirstvarl_s()
Franz Glasner <fzglas.hg@dom66.de>
parents:
385
diff
changeset
|
571 """ |
|
381
fe3dfd687621
Implemented Configuration.getfirstvarl() and Configuration.getfirstvarl_s()
Franz Glasner <fzglas.hg@dom66.de>
parents:
380
diff
changeset
|
572 default = kwds.pop("default", _MARKER) |
|
fe3dfd687621
Implemented Configuration.getfirstvarl() and Configuration.getfirstvarl_s()
Franz Glasner <fzglas.hg@dom66.de>
parents:
380
diff
changeset
|
573 for path in paths: |
|
fe3dfd687621
Implemented Configuration.getfirstvarl() and Configuration.getfirstvarl_s()
Franz Glasner <fzglas.hg@dom66.de>
parents:
380
diff
changeset
|
574 if isinstance(path, (list, tuple)): |
|
fe3dfd687621
Implemented Configuration.getfirstvarl() and Configuration.getfirstvarl_s()
Franz Glasner <fzglas.hg@dom66.de>
parents:
380
diff
changeset
|
575 try: |
|
fe3dfd687621
Implemented Configuration.getfirstvarl() and Configuration.getfirstvarl_s()
Franz Glasner <fzglas.hg@dom66.de>
parents:
380
diff
changeset
|
576 obj = self.getvarl(*path) |
|
fe3dfd687621
Implemented Configuration.getfirstvarl() and Configuration.getfirstvarl_s()
Franz Glasner <fzglas.hg@dom66.de>
parents:
380
diff
changeset
|
577 except KeyError: |
|
fe3dfd687621
Implemented Configuration.getfirstvarl() and Configuration.getfirstvarl_s()
Franz Glasner <fzglas.hg@dom66.de>
parents:
380
diff
changeset
|
578 pass |
|
fe3dfd687621
Implemented Configuration.getfirstvarl() and Configuration.getfirstvarl_s()
Franz Glasner <fzglas.hg@dom66.de>
parents:
380
diff
changeset
|
579 else: |
|
fe3dfd687621
Implemented Configuration.getfirstvarl() and Configuration.getfirstvarl_s()
Franz Glasner <fzglas.hg@dom66.de>
parents:
380
diff
changeset
|
580 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
|
581 |
|
fe3dfd687621
Implemented Configuration.getfirstvarl() and Configuration.getfirstvarl_s()
Franz Glasner <fzglas.hg@dom66.de>
parents:
380
diff
changeset
|
582 elif isinstance(path, dict): |
|
fe3dfd687621
Implemented Configuration.getfirstvarl() and Configuration.getfirstvarl_s()
Franz Glasner <fzglas.hg@dom66.de>
parents:
380
diff
changeset
|
583 try: |
|
fe3dfd687621
Implemented Configuration.getfirstvarl() and Configuration.getfirstvarl_s()
Franz Glasner <fzglas.hg@dom66.de>
parents:
380
diff
changeset
|
584 namespace = path["namespace"] |
|
fe3dfd687621
Implemented Configuration.getfirstvarl() and Configuration.getfirstvarl_s()
Franz Glasner <fzglas.hg@dom66.de>
parents:
380
diff
changeset
|
585 p = path["path"] |
|
fe3dfd687621
Implemented Configuration.getfirstvarl() and Configuration.getfirstvarl_s()
Franz Glasner <fzglas.hg@dom66.de>
parents:
380
diff
changeset
|
586 except KeyError: |
|
fe3dfd687621
Implemented Configuration.getfirstvarl() and Configuration.getfirstvarl_s()
Franz Glasner <fzglas.hg@dom66.de>
parents:
380
diff
changeset
|
587 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
|
588 " and a `namespace' key") |
|
fe3dfd687621
Implemented Configuration.getfirstvarl() and Configuration.getfirstvarl_s()
Franz Glasner <fzglas.hg@dom66.de>
parents:
380
diff
changeset
|
589 else: |
|
fe3dfd687621
Implemented Configuration.getfirstvarl() and Configuration.getfirstvarl_s()
Franz Glasner <fzglas.hg@dom66.de>
parents:
380
diff
changeset
|
590 try: |
|
fe3dfd687621
Implemented Configuration.getfirstvarl() and Configuration.getfirstvarl_s()
Franz Glasner <fzglas.hg@dom66.de>
parents:
380
diff
changeset
|
591 obj = self.getvarl(*p, namespace=namespace) |
|
fe3dfd687621
Implemented Configuration.getfirstvarl() and Configuration.getfirstvarl_s()
Franz Glasner <fzglas.hg@dom66.de>
parents:
380
diff
changeset
|
592 except KeyError: |
|
fe3dfd687621
Implemented Configuration.getfirstvarl() and Configuration.getfirstvarl_s()
Franz Glasner <fzglas.hg@dom66.de>
parents:
380
diff
changeset
|
593 pass |
|
fe3dfd687621
Implemented Configuration.getfirstvarl() and Configuration.getfirstvarl_s()
Franz Glasner <fzglas.hg@dom66.de>
parents:
380
diff
changeset
|
594 else: |
|
fe3dfd687621
Implemented Configuration.getfirstvarl() and Configuration.getfirstvarl_s()
Franz Glasner <fzglas.hg@dom66.de>
parents:
380
diff
changeset
|
595 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
|
596 else: |
|
fe3dfd687621
Implemented Configuration.getfirstvarl() and Configuration.getfirstvarl_s()
Franz Glasner <fzglas.hg@dom66.de>
parents:
380
diff
changeset
|
597 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
|
598 if default is _MARKER: |
|
fe3dfd687621
Implemented Configuration.getfirstvarl() and Configuration.getfirstvarl_s()
Franz Glasner <fzglas.hg@dom66.de>
parents:
380
diff
changeset
|
599 raise KeyError( |
|
fe3dfd687621
Implemented Configuration.getfirstvarl() and Configuration.getfirstvarl_s()
Franz Glasner <fzglas.hg@dom66.de>
parents:
380
diff
changeset
|
600 "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
|
601 else: |
|
fe3dfd687621
Implemented Configuration.getfirstvarl() and Configuration.getfirstvarl_s()
Franz Glasner <fzglas.hg@dom66.de>
parents:
380
diff
changeset
|
602 return default |
|
fe3dfd687621
Implemented Configuration.getfirstvarl() and Configuration.getfirstvarl_s()
Franz Glasner <fzglas.hg@dom66.de>
parents:
380
diff
changeset
|
603 |
|
16
f85dc4677c01
Implemented the real configuration dictionary with attribute access or
Franz Glasner <hg@dom66.de>
parents:
diff
changeset
|
604 def getvar_s(self, varname, default=_MARKER): |
|
24
fa65adab0b71
FIX: Typo in comment
Franz Glasner <f.glasner@feldmann-mg.com>
parents:
23
diff
changeset
|
605 """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
|
606 |
|
115
a5339d39af5c
Begin the documentation of variables and its expansion
Franz Glasner <hg@dom66.de>
parents:
104
diff
changeset
|
607 `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
|
608 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
|
609 and filters are applied. |
|
115
a5339d39af5c
Begin the documentation of variables and its expansion
Franz Glasner <hg@dom66.de>
parents:
104
diff
changeset
|
610 |
|
202
2e66178a09d8
Docu: Ban "keyword expansion" -- use "variable interpolation" instead
Franz Glasner <fzglas.hg@dom66.de>
parents:
156
diff
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|
611 For more details see chapter :ref:`variable-interpolation`. |
|
115
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104
diff
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|
612 |
|
16
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|
613 """ |
|
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|
614 try: |
|
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changeset
|
615 obj = self.getvar(varname) |
|
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|
616 return self.substitute_variables_in_obj(obj) |
|
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|
617 except KeyError: |
|
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|
618 if default is _MARKER: |
|
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parents:
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changeset
|
619 raise |
|
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diff
changeset
|
620 else: |
|
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changeset
|
621 return default |
|
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diff
changeset
|
622 |
|
368
4ee53f6fcac1
Implement ".getfirstvar()" and ".getfirstvar_s()".
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parents:
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diff
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|
623 def getfirstvar_s(self, *varnames, **kwds): |
|
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Implement ".getfirstvar()" and ".getfirstvar_s()".
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|
624 """A variant of :meth:`~.getvar_s` that returns the first found |
|
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|
625 variable in the list of given variables in `varnames`. |
|
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|
626 |
|
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parents:
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diff
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|
627 """ |
|
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diff
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|
628 default = kwds.pop("default", _MARKER) |
|
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|
629 for varname in varnames: |
|
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|
630 try: |
|
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|
631 obj = self.getvar(varname) |
|
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|
632 except KeyError: |
|
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633 pass |
|
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diff
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|
634 else: |
|
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parents:
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diff
changeset
|
635 return self.substitute_variables_in_obj(obj) |
|
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parents:
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|
636 if default is _MARKER: |
|
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parents:
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diff
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|
637 raise KeyError( |
|
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parents:
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|
638 "none of the given variables found: %r" % (varnames,)) |
|
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parents:
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diff
changeset
|
639 else: |
|
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diff
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|
640 return default |
|
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diff
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|
641 |
|
16
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|
642 def _split_ns(self, s): |
|
495
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643 ns, sep, rest = s.partition(_NS_SEPARATOR) |
|
480
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diff
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|
644 if sep: |
|
502
4f90e1eb7af8
Make quote() and unquote() module globals and also export from configmix
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parents:
500
diff
changeset
|
645 return (unquote(ns), rest) |
|
480
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|
646 else: |
|
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diff
changeset
|
647 return (None, ns) |
|
16
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|
648 |
|
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diff
changeset
|
649 def _split_filters(self, s): |
|
495
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|
650 name, sep, filters = s.partition(_FILTER_SEPARATOR) |
|
480
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|
651 if sep: |
|
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|
652 filters = filters.strip() |
|
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diff
changeset
|
653 if filters: |
|
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|
654 return (name.rstrip(), |
|
495
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Franz Glasner <f.glasner@feldmann-mg.com>
parents:
493
diff
changeset
|
655 filters.split(_FILTER_SEPARATOR)) |
|
476
eddc0f7c6271
Optimize ._split_filters() for the most common case of no-filters: use s.partition() first
Franz Glasner <f.glasner@feldmann-mg.com>
parents:
475
diff
changeset
|
656 else: |
|
480
3cfc808e613b
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changeset
|
657 return (name.rstrip(), []) |
|
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changeset
|
658 else: |
|
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parents:
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diff
changeset
|
659 return (name, []) |
|
16
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diff
changeset
|
660 |
|
489
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parents:
488
diff
changeset
|
661 def _lookupvar(self, *path): |
|
314
043a6412be3c
Implemented new access methods .getvarl() and .getvarl_s
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parents:
311
diff
changeset
|
662 """Lookup a variable within a hierarchy. |
|
16
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diff
changeset
|
663 |
|
489
b49164db1273
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parents:
488
diff
changeset
|
664 :raise KeyError: An unexisting `path` raises a `KeyError` |
|
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Remove unused keyword params for ._lookupvar().
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488
diff
changeset
|
665 |
|
16
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parents:
diff
changeset
|
666 """ |
|
419
079a82129110
Allow the empty variable name to retrieve the root configuration object
Franz Glasner <fzglas.hg@dom66.de>
parents:
418
diff
changeset
|
667 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
|
668 return self |
|
499
f46932e8a84c
Configuration._lookupvar() now uses an internal cache (positive and negative).
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parents:
497
diff
changeset
|
669 v = self.__cache.get(path, _MARKER) |
|
f46932e8a84c
Configuration._lookupvar() now uses an internal cache (positive and negative).
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diff
changeset
|
670 if v is not _MARKER: |
|
f46932e8a84c
Configuration._lookupvar() now uses an internal cache (positive and negative).
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parents:
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diff
changeset
|
671 if v is _MISSING: |
|
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Configuration._lookupvar() now uses an internal cache (positive and negative).
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parents:
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diff
changeset
|
672 raise KeyError( |
|
f46932e8a84c
Configuration._lookupvar() now uses an internal cache (positive and negative).
Franz Glasner <fzglas.hg@dom66.de>
parents:
497
diff
changeset
|
673 "Configuration variable %r not found" |
|
f46932e8a84c
Configuration._lookupvar() now uses an internal cache (positive and negative).
Franz Glasner <fzglas.hg@dom66.de>
parents:
497
diff
changeset
|
674 " (negative internal cache value)" % (path,)) |
|
f46932e8a84c
Configuration._lookupvar() now uses an internal cache (positive and negative).
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parents:
497
diff
changeset
|
675 else: |
|
f46932e8a84c
Configuration._lookupvar() now uses an internal cache (positive and negative).
Franz Glasner <fzglas.hg@dom66.de>
parents:
497
diff
changeset
|
676 return v |
|
493
6a0f761ff35b
Remove default (i.e. all keyword arguments) from .expand_if_reference() because no-one uses it
Franz Glasner <f.glasner@feldmann-mg.com>
parents:
491
diff
changeset
|
677 eiref = self.expand_if_reference |
|
16
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parents:
diff
changeset
|
678 try: |
|
493
6a0f761ff35b
Remove default (i.e. all keyword arguments) from .expand_if_reference() because no-one uses it
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parents:
491
diff
changeset
|
679 v = eiref(super(Configuration, self).__getitem__(path[0])) |
|
382
24db29162d09
Renamed "names" arguments into the more proper "path"
Franz Glasner <fzglas.hg@dom66.de>
parents:
381
diff
changeset
|
680 for p in path[1:]: |
|
493
6a0f761ff35b
Remove default (i.e. all keyword arguments) from .expand_if_reference() because no-one uses it
Franz Glasner <f.glasner@feldmann-mg.com>
parents:
491
diff
changeset
|
681 v = eiref(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
|
682 except TypeError: |
|
499
f46932e8a84c
Configuration._lookupvar() now uses an internal cache (positive and negative).
Franz Glasner <fzglas.hg@dom66.de>
parents:
497
diff
changeset
|
683 self.__cache[path] = _MISSING |
|
207
b3b5ed34d180
Handle most flake8 errors and warnings.
Franz Glasner <fzglas.hg@dom66.de>
parents:
202
diff
changeset
|
684 raise KeyError( |
|
b3b5ed34d180
Handle most flake8 errors and warnings.
Franz Glasner <fzglas.hg@dom66.de>
parents:
202
diff
changeset
|
685 "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
|
686 "(missing intermediate keys?)" % (path,)) |
|
499
f46932e8a84c
Configuration._lookupvar() now uses an internal cache (positive and negative).
Franz Glasner <fzglas.hg@dom66.de>
parents:
497
diff
changeset
|
687 except KeyError: |
|
f46932e8a84c
Configuration._lookupvar() now uses an internal cache (positive and negative).
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parents:
497
diff
changeset
|
688 self.__cache[path] = _MISSING |
|
f46932e8a84c
Configuration._lookupvar() now uses an internal cache (positive and negative).
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parents:
497
diff
changeset
|
689 raise |
|
f46932e8a84c
Configuration._lookupvar() now uses an internal cache (positive and negative).
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parents:
497
diff
changeset
|
690 self.__cache[path] = v |
|
16
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Implemented the real configuration dictionary with attribute access or
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parents:
diff
changeset
|
691 return v |
|
f85dc4677c01
Implemented the real configuration dictionary with attribute access or
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parents:
diff
changeset
|
692 |
|
518
55b8aed70f7d
Remove unneeded "default" keyword argument for Configuration._lookupref() and Configuration.expand_ref_uri()
Franz Glasner <fzglas.hg@dom66.de>
parents:
517
diff
changeset
|
693 def _lookupref(self, key): |
|
305
f529ca46dd50
Implemented the "ref" namespace to get configuration tree references.
Franz Glasner <fzglas.hg@dom66.de>
parents:
304
diff
changeset
|
694 """ |
| 311 | 695 |
| 696 `key` must be a configuration reference URI without any | |
| 697 (namespace) prefixes and suffixes | |
|
305
f529ca46dd50
Implemented the "ref" namespace to get configuration tree references.
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parents:
304
diff
changeset
|
698 |
| 519 | 699 :raise KeyError: If the reference is not found |
| 700 | |
|
305
f529ca46dd50
Implemented the "ref" namespace to get configuration tree references.
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parents:
304
diff
changeset
|
701 """ |
|
518
55b8aed70f7d
Remove unneeded "default" keyword argument for Configuration._lookupref() and Configuration.expand_ref_uri()
Franz Glasner <fzglas.hg@dom66.de>
parents:
517
diff
changeset
|
702 return self.expand_ref_uri(key) |
|
305
f529ca46dd50
Implemented the "ref" namespace to get configuration tree references.
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parents:
304
diff
changeset
|
703 |
|
493
6a0f761ff35b
Remove default (i.e. all keyword arguments) from .expand_if_reference() because no-one uses it
Franz Glasner <f.glasner@feldmann-mg.com>
parents:
491
diff
changeset
|
704 def expand_if_reference(self, v): |
| 311 | 705 """Check whether `v` is a configuration reference and -- if true -- |
| 706 then expand it. | |
|
305
f529ca46dd50
Implemented the "ref" namespace to get configuration tree references.
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parents:
304
diff
changeset
|
707 |
| 310 | 708 `v` must match the pattern ``{{ref:<REFERENCE>}}`` |
|
305
f529ca46dd50
Implemented the "ref" namespace to get configuration tree references.
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parents:
304
diff
changeset
|
709 |
|
f529ca46dd50
Implemented the "ref" namespace to get configuration tree references.
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parents:
304
diff
changeset
|
710 All non-matching texttypes and all non-texttypes are returned |
|
f529ca46dd50
Implemented the "ref" namespace to get configuration tree references.
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parents:
304
diff
changeset
|
711 unchanged. |
|
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Implemented the "ref" namespace to get configuration tree references.
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parents:
304
diff
changeset
|
712 |
|
493
6a0f761ff35b
Remove default (i.e. all keyword arguments) from .expand_if_reference() because no-one uses it
Franz Glasner <f.glasner@feldmann-mg.com>
parents:
491
diff
changeset
|
713 :raise KeyError: If the reverence cannot found |
|
6a0f761ff35b
Remove default (i.e. all keyword arguments) from .expand_if_reference() because no-one uses it
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parents:
491
diff
changeset
|
714 |
|
305
f529ca46dd50
Implemented the "ref" namespace to get configuration tree references.
Franz Glasner <fzglas.hg@dom66.de>
parents:
304
diff
changeset
|
715 """ |
|
495
3f0c932588fc
Performance: module-level variable lookup is much faster (similar to local) than class-level (either via CLASS.VARIABLE or self.VARIABLE).
Franz Glasner <f.glasner@feldmann-mg.com>
parents:
493
diff
changeset
|
716 if not isinstance(v, _TEXTTYPE): |
|
305
f529ca46dd50
Implemented the "ref" namespace to get configuration tree references.
Franz Glasner <fzglas.hg@dom66.de>
parents:
304
diff
changeset
|
717 return v |
|
495
3f0c932588fc
Performance: module-level variable lookup is much faster (similar to local) than class-level (either via CLASS.VARIABLE or self.VARIABLE).
Franz Glasner <f.glasner@feldmann-mg.com>
parents:
493
diff
changeset
|
718 if v.startswith(_STARTTOK_REF) and v.endswith(_ENDTOK_REF): |
|
488
298510ec8171
Simplify logic by not using many negations
Franz Glasner <f.glasner@feldmann-mg.com>
parents:
487
diff
changeset
|
719 return self.expand_ref_uri( |
|
495
3f0c932588fc
Performance: module-level variable lookup is much faster (similar to local) than class-level (either via CLASS.VARIABLE or self.VARIABLE).
Franz Glasner <f.glasner@feldmann-mg.com>
parents:
493
diff
changeset
|
720 v[len(_STARTTOK_REF):-len(_ENDTOK_REF)]) |
|
488
298510ec8171
Simplify logic by not using many negations
Franz Glasner <f.glasner@feldmann-mg.com>
parents:
487
diff
changeset
|
721 else: |
|
305
f529ca46dd50
Implemented the "ref" namespace to get configuration tree references.
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parents:
304
diff
changeset
|
722 return v |
|
f529ca46dd50
Implemented the "ref" namespace to get configuration tree references.
Franz Glasner <fzglas.hg@dom66.de>
parents:
304
diff
changeset
|
723 |
|
518
55b8aed70f7d
Remove unneeded "default" keyword argument for Configuration._lookupref() and Configuration.expand_ref_uri()
Franz Glasner <fzglas.hg@dom66.de>
parents:
517
diff
changeset
|
724 def expand_ref_uri(self, uri): |
| 519 | 725 """ |
| 726 | |
| 727 :raises KeyError: If the reference URI is not found | |
| 728 | |
| 729 """ | |
|
305
f529ca46dd50
Implemented the "ref" namespace to get configuration tree references.
Franz Glasner <fzglas.hg@dom66.de>
parents:
304
diff
changeset
|
730 pu = urlsplit(uri) |
|
f529ca46dd50
Implemented the "ref" namespace to get configuration tree references.
Franz Glasner <fzglas.hg@dom66.de>
parents:
304
diff
changeset
|
731 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
|
732 raise ValueError("only fragment-only URIs are supported") |
|
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Implemented the "ref" namespace to get configuration tree references.
Franz Glasner <fzglas.hg@dom66.de>
parents:
304
diff
changeset
|
733 if not pu.fragment: |
|
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Implemented the "ref" namespace to get configuration tree references.
Franz Glasner <fzglas.hg@dom66.de>
parents:
304
diff
changeset
|
734 return self |
|
495
3f0c932588fc
Performance: module-level variable lookup is much faster (similar to local) than class-level (either via CLASS.VARIABLE or self.VARIABLE).
Franz Glasner <f.glasner@feldmann-mg.com>
parents:
493
diff
changeset
|
735 if pu.fragment.startswith(_DOT): |
|
305
f529ca46dd50
Implemented the "ref" namespace to get configuration tree references.
Franz Glasner <fzglas.hg@dom66.de>
parents:
304
diff
changeset
|
736 raise ValueError("relative refs not supported") |
|
518
55b8aed70f7d
Remove unneeded "default" keyword argument for Configuration._lookupref() and Configuration.expand_ref_uri()
Franz Glasner <fzglas.hg@dom66.de>
parents:
517
diff
changeset
|
737 return self.getvar(pu.fragment) |
|
16
f85dc4677c01
Implemented the real configuration dictionary with attribute access or
Franz Glasner <hg@dom66.de>
parents:
diff
changeset
|
738 |
|
f85dc4677c01
Implemented the real configuration dictionary with attribute access or
Franz Glasner <hg@dom66.de>
parents:
diff
changeset
|
739 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
|
740 """Recursively expand variables in the object tree `obj`.""" |
|
491
de776953337b
Remove repeated type(obj) calls
Franz Glasner <f.glasner@feldmann-mg.com>
parents:
490
diff
changeset
|
741 ty = type(obj) |
|
495
3f0c932588fc
Performance: module-level variable lookup is much faster (similar to local) than class-level (either via CLASS.VARIABLE or self.VARIABLE).
Franz Glasner <f.glasner@feldmann-mg.com>
parents:
493
diff
changeset
|
742 if issubclass(ty, _TEXTTYPE): |
|
16
f85dc4677c01
Implemented the real configuration dictionary with attribute access or
Franz Glasner <hg@dom66.de>
parents:
diff
changeset
|
743 # a string - really replace the value |
|
f85dc4677c01
Implemented the real configuration dictionary with attribute access or
Franz Glasner <hg@dom66.de>
parents:
diff
changeset
|
744 return self.expand_variable(obj) |
|
491
de776953337b
Remove repeated type(obj) calls
Franz Glasner <f.glasner@feldmann-mg.com>
parents:
490
diff
changeset
|
745 elif issubclass(ty, dict): |
|
de776953337b
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Franz Glasner <f.glasner@feldmann-mg.com>
parents:
490
diff
changeset
|
746 newdict = ty() |
|
497
8e516f17cf95
Optimize .substitute_variables_in_obj: use dict.items() to avoid one dict lookup
Franz Glasner <fzglas.hg@dom66.de>
parents:
495
diff
changeset
|
747 for k, v in obj.items(): |
|
8e516f17cf95
Optimize .substitute_variables_in_obj: use dict.items() to avoid one dict lookup
Franz Glasner <fzglas.hg@dom66.de>
parents:
495
diff
changeset
|
748 newdict[k] = self.substitute_variables_in_obj(v) |
|
490
ea4b7fac02d6
Reorder type comparisons by usage
Franz Glasner <f.glasner@feldmann-mg.com>
parents:
489
diff
changeset
|
749 return newdict |
|
491
de776953337b
Remove repeated type(obj) calls
Franz Glasner <f.glasner@feldmann-mg.com>
parents:
490
diff
changeset
|
750 elif issubclass(ty, list): |
|
16
f85dc4677c01
Implemented the real configuration dictionary with attribute access or
Franz Glasner <hg@dom66.de>
parents:
diff
changeset
|
751 return [self.substitute_variables_in_obj(i) for i in obj] |
|
491
de776953337b
Remove repeated type(obj) calls
Franz Glasner <f.glasner@feldmann-mg.com>
parents:
490
diff
changeset
|
752 elif issubclass(ty, tuple): |
|
512
bf8a1b1498db
Remove a temporary variable usage
Franz Glasner <fzglas.hg@dom66.de>
parents:
511
diff
changeset
|
753 return ty([self.substitute_variables_in_obj(i) for i in obj]) |
|
491
de776953337b
Remove repeated type(obj) calls
Franz Glasner <f.glasner@feldmann-mg.com>
parents:
490
diff
changeset
|
754 elif issubclass(ty, set): |
|
de776953337b
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parents:
490
diff
changeset
|
755 newset = ty() |
|
16
f85dc4677c01
Implemented the real configuration dictionary with attribute access or
Franz Glasner <hg@dom66.de>
parents:
diff
changeset
|
756 for i in obj: |
|
f85dc4677c01
Implemented the real configuration dictionary with attribute access or
Franz Glasner <hg@dom66.de>
parents:
diff
changeset
|
757 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
|
758 else: |
|
f85dc4677c01
Implemented the real configuration dictionary with attribute access or
Franz Glasner <hg@dom66.de>
parents:
diff
changeset
|
759 return obj |
|
f85dc4677c01
Implemented the real configuration dictionary with attribute access or
Franz Glasner <hg@dom66.de>
parents:
diff
changeset
|
760 |
|
f85dc4677c01
Implemented the real configuration dictionary with attribute access or
Franz Glasner <hg@dom66.de>
parents:
diff
changeset
|
761 def expand_variable(self, s): |
| 302 | 762 """Expand variables in the single string `s`""" |
|
495
3f0c932588fc
Performance: module-level variable lookup is much faster (similar to local) than class-level (either via CLASS.VARIABLE or self.VARIABLE).
Franz Glasner <f.glasner@feldmann-mg.com>
parents:
493
diff
changeset
|
763 start = s.find(_STARTTOK, 0) |
|
484
0259bd521729
Avoid repeaded string concatenations in .expand_variable(): use a list of string parts and proper indexes into the source string
Franz Glasner <f.glasner@feldmann-mg.com>
parents:
483
diff
changeset
|
764 if start < 0: |
|
0259bd521729
Avoid repeaded string concatenations in .expand_variable(): use a list of string parts and proper indexes into the source string
Franz Glasner <f.glasner@feldmann-mg.com>
parents:
483
diff
changeset
|
765 return s |
|
515
3387a9d5fb12
Performance: compute the length of the constant input strinc only once and compute the new rest earlier and use the computed value also in comparisons
Franz Glasner <fzglas.hg@dom66.de>
parents:
513
diff
changeset
|
766 len_s = len(s) |
|
484
0259bd521729
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Franz Glasner <f.glasner@feldmann-mg.com>
parents:
483
diff
changeset
|
767 res = [] |
|
0259bd521729
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Franz Glasner <f.glasner@feldmann-mg.com>
parents:
483
diff
changeset
|
768 res_append = res.append |
|
0259bd521729
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Franz Glasner <f.glasner@feldmann-mg.com>
parents:
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diff
changeset
|
769 rest = 0 |
|
16
f85dc4677c01
Implemented the real configuration dictionary with attribute access or
Franz Glasner <hg@dom66.de>
parents:
diff
changeset
|
770 while start != -1: |
|
484
0259bd521729
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Franz Glasner <f.glasner@feldmann-mg.com>
parents:
483
diff
changeset
|
771 res_append(s[rest:start]) |
|
495
3f0c932588fc
Performance: module-level variable lookup is much faster (similar to local) than class-level (either via CLASS.VARIABLE or self.VARIABLE).
Franz Glasner <f.glasner@feldmann-mg.com>
parents:
493
diff
changeset
|
772 end = s.find(_ENDTOK, start) |
|
16
f85dc4677c01
Implemented the real configuration dictionary with attribute access or
Franz Glasner <hg@dom66.de>
parents:
diff
changeset
|
773 if end < 0: |
|
484
0259bd521729
Avoid repeaded string concatenations in .expand_variable(): use a list of string parts and proper indexes into the source string
Franz Glasner <f.glasner@feldmann-mg.com>
parents:
483
diff
changeset
|
774 rest = start |
|
0259bd521729
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Franz Glasner <f.glasner@feldmann-mg.com>
parents:
483
diff
changeset
|
775 break |
|
16
f85dc4677c01
Implemented the real configuration dictionary with attribute access or
Franz Glasner <hg@dom66.de>
parents:
diff
changeset
|
776 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
|
777 try: |
|
357
dd454e1efea4
Use constants for the names of the "None" and "Empty" filters
Franz Glasner <fzglas.hg@dom66.de>
parents:
352
diff
changeset
|
778 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
|
779 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
|
780 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
|
781 elif EMPTY_FILTER in filters: |
|
352
2b209bdf6995
Implement the "Empty" filter.
Franz Glasner <f.glasner@feldmann-mg.com>
parents:
350
diff
changeset
|
782 varvalue = self._apply_filters( |
|
484
0259bd521729
Avoid repeaded string concatenations in .expand_variable(): use a list of string parts and proper indexes into the source string
Franz Glasner <f.glasner@feldmann-mg.com>
parents:
483
diff
changeset
|
783 filters, self.getvar_s(varname, |
|
495
3f0c932588fc
Performance: module-level variable lookup is much faster (similar to local) than class-level (either via CLASS.VARIABLE or self.VARIABLE).
Franz Glasner <f.glasner@feldmann-mg.com>
parents:
493
diff
changeset
|
784 default=_EMPTY_STR)) |
|
349
83f76a41cf7c
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Franz Glasner <fzglas.hg@dom66.de>
parents:
334
diff
changeset
|
785 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
|
786 varvalue = self._apply_filters( |
|
83f76a41cf7c
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Franz Glasner <fzglas.hg@dom66.de>
parents:
334
diff
changeset
|
787 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
|
788 except KeyError: |
|
8715e5cc59ac
Print a warning if a variable cannot be expanded.
Franz Glasner <hg@dom66.de>
parents:
36
diff
changeset
|
789 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
|
790 "%r" % (varname, s, ), |
|
8715e5cc59ac
Print a warning if a variable cannot be expanded.
Franz Glasner <hg@dom66.de>
parents:
36
diff
changeset
|
791 UserWarning, |
|
8715e5cc59ac
Print a warning if a variable cannot be expanded.
Franz Glasner <hg@dom66.de>
parents:
36
diff
changeset
|
792 stacklevel=1) |
|
8715e5cc59ac
Print a warning if a variable cannot be expanded.
Franz Glasner <hg@dom66.de>
parents:
36
diff
changeset
|
793 raise |
|
515
3387a9d5fb12
Performance: compute the length of the constant input strinc only once and compute the new rest earlier and use the computed value also in comparisons
Franz Glasner <fzglas.hg@dom66.de>
parents:
513
diff
changeset
|
794 rest = end + 2 |
|
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
|
795 # |
|
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
|
796 # 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
|
797 # 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
|
798 # |
|
515
3387a9d5fb12
Performance: compute the length of the constant input strinc only once and compute the new rest earlier and use the computed value also in comparisons
Franz Glasner <fzglas.hg@dom66.de>
parents:
513
diff
changeset
|
799 if (start == 0) and (rest == len_s): |
|
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
|
800 return varvalue |
|
516
ad1e630ba736
FIX: Do not filter-out all False values then interpolating (zero int, boolean False)
Franz Glasner <fzglas.hg@dom66.de>
parents:
515
diff
changeset
|
801 if varvalue is None: |
|
484
0259bd521729
Avoid repeaded string concatenations in .expand_variable(): use a list of string parts and proper indexes into the source string
Franz Glasner <f.glasner@feldmann-mg.com>
parents:
483
diff
changeset
|
802 pass |
|
0259bd521729
Avoid repeaded string concatenations in .expand_variable(): use a list of string parts and proper indexes into the source string
Franz Glasner <f.glasner@feldmann-mg.com>
parents:
483
diff
changeset
|
803 else: |
|
487
d7f6f2afcee2
Instead of using u(str(v)) use specialized functions for PY2 and PY3
Franz Glasner <f.glasner@feldmann-mg.com>
parents:
485
diff
changeset
|
804 res_append(str_and_u(varvalue)) |
|
16
f85dc4677c01
Implemented the real configuration dictionary with attribute access or
Franz Glasner <hg@dom66.de>
parents:
diff
changeset
|
805 # don't re-evaluate because `self.getvar_s()` expands already |
|
495
3f0c932588fc
Performance: module-level variable lookup is much faster (similar to local) than class-level (either via CLASS.VARIABLE or self.VARIABLE).
Franz Glasner <f.glasner@feldmann-mg.com>
parents:
493
diff
changeset
|
806 start = s.find(_STARTTOK, rest) |
|
484
0259bd521729
Avoid repeaded string concatenations in .expand_variable(): use a list of string parts and proper indexes into the source string
Franz Glasner <f.glasner@feldmann-mg.com>
parents:
483
diff
changeset
|
807 res_append(s[rest:]) |
|
495
3f0c932588fc
Performance: module-level variable lookup is much faster (similar to local) than class-level (either via CLASS.VARIABLE or self.VARIABLE).
Franz Glasner <f.glasner@feldmann-mg.com>
parents:
493
diff
changeset
|
808 return _EMPTY_STR.join(res) |
|
16
f85dc4677c01
Implemented the real configuration dictionary with attribute access or
Franz Glasner <hg@dom66.de>
parents:
diff
changeset
|
809 |
|
f85dc4677c01
Implemented the real configuration dictionary with attribute access or
Franz Glasner <hg@dom66.de>
parents:
diff
changeset
|
810 def _apply_filters(self, filters, value): |
|
f85dc4677c01
Implemented the real configuration dictionary with attribute access or
Franz Glasner <hg@dom66.de>
parents:
diff
changeset
|
811 for name in filters: |
|
f85dc4677c01
Implemented the real configuration dictionary with attribute access or
Franz Glasner <hg@dom66.de>
parents:
diff
changeset
|
812 try: |
|
f85dc4677c01
Implemented the real configuration dictionary with attribute access or
Franz Glasner <hg@dom66.de>
parents:
diff
changeset
|
813 filterfn = lookup_filter(name) |
|
f85dc4677c01
Implemented the real configuration dictionary with attribute access or
Franz Glasner <hg@dom66.de>
parents:
diff
changeset
|
814 except KeyError: |
|
40
8d66aef2f7fb
Comment about exceptions when filters are missing.
Franz Glasner <hg@dom66.de>
parents:
39
diff
changeset
|
815 # |
|
8d66aef2f7fb
Comment about exceptions when filters are missing.
Franz Glasner <hg@dom66.de>
parents:
39
diff
changeset
|
816 # 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
|
817 # a very serious error. |
|
8d66aef2f7fb
Comment about exceptions when filters are missing.
Franz Glasner <hg@dom66.de>
parents:
39
diff
changeset
|
818 # |
|
16
f85dc4677c01
Implemented the real configuration dictionary with attribute access or
Franz Glasner <hg@dom66.de>
parents:
diff
changeset
|
819 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
|
820 else: |
|
f85dc4677c01
Implemented the real configuration dictionary with attribute access or
Franz Glasner <hg@dom66.de>
parents:
diff
changeset
|
821 value = filterfn(self, value) |
|
f85dc4677c01
Implemented the real configuration dictionary with attribute access or
Franz Glasner <hg@dom66.de>
parents:
diff
changeset
|
822 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
|
823 |
|
411
3c95faa91dad
Optimize the creation of a jailed config.
Franz Glasner <f.glasner@feldmann-mg.com>
parents:
406
diff
changeset
|
824 def jailed(self, rootpath=None, root=None, bind_root=True): |
| 399 | 825 """Return a "jailed" configuration of the current configuration. |
|
395
0b3ffc34fa5c
Begin a jailed configuration with access to a sub-tree of the original configuration
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parents:
389
diff
changeset
|
826 |
| 399 | 827 :param rootpath: a sequence of strings that shall emcompass |
| 828 the chroot-like jail of the returned | |
| 829 configuration | |
| 830 :type rootpath: list or tuple | |
| 831 :param str root: a string path expression that shall encompass | |
| 832 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
|
833 :param bool bind_root: if you do a :meth:`~.rebind` just after |
|
3c95faa91dad
Optimize the creation of a jailed config.
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parents:
406
diff
changeset
|
834 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
|
835 `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
|
836 the default |
| 397 | 837 :return: a jailed (aka restricted) configuration |
| 838 :rtype: _JailedConfiguration | |
| 839 | |
| 399 | 840 Exactly one of `rootpath` or `root` must be given. |
| 841 | |
|
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842 """ |
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843 if rootpath is not None and root is not None: |
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844 raise ValueError("only one of `rootpath' or `root' can be given") |
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845 if rootpath is None and root is None: |
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846 raise ValueError("one of `rootpath' or `root' must be given") |
|
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847 if rootpath is not None and not isinstance(rootpath, (list, tuple)): |
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848 raise TypeError("`rootpath' must be a list or a tuple") |
|
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849 if root is not None: |
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850 # convert to path |
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851 varns, varname = self._split_ns(root) |
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852 if varns: |
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853 raise ValueError( |
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854 "jailed configurations do not support namespaces") |
|
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855 if varname: |
|
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856 rootpath = tuple([unquote(p) |
|
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857 for p in root.split(_HIER_SEPARATOR)]) |
|
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858 else: |
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859 rootpath = tuple() |
|
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860 jc = _JailedConfiguration(*rootpath) |
|
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861 if bind_root: |
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862 jc.rebind(self) |
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863 return jc |
|
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864 |
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865 |
|
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866 class _JailedConfiguration(CoercingMethodsMixin): |
|
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867 |
| 397 | 868 """A jailed and restricted variant of :class:`Configuration`. |
| 869 | |
| 399 | 870 Restriction is two-fold: |
| 871 | |
| 872 - The access to configuration variables in `config` is restricted | |
| 873 to the configuration sub-tree that is configured in `path`. | |
| 874 | |
| 875 - Not all access-methods of :class:`Configuration` are implemented | |
| 876 yet. | |
| 877 | |
| 400 | 878 .. seealso:: :ref:`jailed-configuration` |
| 879 | |
| 399 | 880 .. note:: There is no namespace support. |
| 881 | |
| 882 .. note:: Do not call the constructor directly. Instantiate a jailed | |
| 883 configuration from the parent configuration's | |
| 884 :meth:`~.Configuration.jailed` factory method. | |
| 397 | 885 |
| 886 """ | |
|
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887 |
|
503
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888 __slots__ = ("_base", "_path", "_path_string") |
|
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889 |
|
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890 is_jail = True |
|
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891 """Flag to show that this is a jail for another configuration""" |
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892 |
|
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893 def __init__(self, *path): |
|
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894 super(_JailedConfiguration, self).__init__() |
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895 self._path = path |
|
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896 self._path_string = None |
|
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897 |
|
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898 @property |
|
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899 def _pathstr(self): |
|
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900 v = self._path_string |
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901 if v is None: |
|
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|
902 if self._path: |
|
513
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diff
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|
903 v = _HIER_SEPARATOR.join([quote(p) for p in self._path]) \ |
|
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|
904 + _HIER_SEPARATOR |
|
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905 else: |
|
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906 v = _EMPTY_STR |
|
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907 self._path_string = v |
|
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908 return v |
|
405
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|
909 |
|
406
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|
910 @property |
|
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|
911 def base(self): |
|
426
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|
912 """Ask for the base (aka parent) configuration". |
|
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|
913 |
|
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|
914 This configuration is always unjailed. |
|
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|
915 |
|
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|
916 """ |
|
406
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|
917 return self._base |
|
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|
918 |
|
405
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|
919 def rebind(self, new_base): |
|
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920 """Bind the jail to a new unjailed configuration `new_base`. |
|
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|
921 |
|
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|
922 The new configuration base also must have an existing path to |
|
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|
923 the root. |
|
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|
924 |
|
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|
925 :param Configuration new_base: the new base |
|
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926 |
|
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|
927 """ |
|
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|
928 if new_base.is_jail: |
|
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diff
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|
929 raise TypeError("can only bind to an unjailed configuration") |
|
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930 self._base = new_base |
|
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|
931 # |
|
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932 # Early error out if the chroot does not exist but allow |
|
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933 # degenerated case if `self._path` is empty. |
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934 # |
|
449
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|
935 if self._path and self._path not in new_base: |
|
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|
936 raise KeyError( |
|
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diff
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|
937 "base key path %r not available in the new base" |
|
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|
938 % (self._path, )) |
|
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|
939 |
|
448
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|
940 def __getattr__(self, name): |
| 469 | 941 """Attribute-style access. |
| 942 | |
| 943 Result values are interpolated (i.e. forwarded to | |
| 944 :meth:`~.getvarl_s`) | |
| 945 | |
| 946 """ | |
|
448
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|
947 try: |
|
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|
948 v = self._base.getvarl_s(*(self._path + (name, ))) |
|
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|
949 except KeyError: |
|
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|
950 raise AttributeError("%s has no attribute %r" % (type(self), name)) |
|
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|
951 else: |
|
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|
952 # Wrap a dict into another dict with attribute access support |
|
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|
953 if isinstance(v, dict): |
|
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|
954 return _AttributeDict(v) |
|
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955 else: |
|
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|
956 return v |
|
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|
957 |
|
437
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diff
changeset
|
958 def __getitem__(self, key): |
| 469 | 959 """Mapping and list interface that forwards to :meth:`~.getvarl_s` |
|
437
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diff
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|
960 |
|
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|
961 """ |
|
441
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diff
changeset
|
962 if isinstance(key, tuple): |
|
440
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diff
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|
963 return self._base.getvarl_s(*(self._path + key)) |
|
441
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|
964 elif isinstance(key, list): |
|
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changeset
|
965 return self._base.getvarl_s(*(self._path + tuple(key))) |
|
437
bbc5b64e137a
- Dict-level access to a configuration key now does variable interpolation.
Franz Glasner <fzglas.hg@dom66.de>
parents:
432
diff
changeset
|
966 else: |
|
468
95df1a10259a
Index list-access for jailed configurations: be more generic by calling also __getitem__ in the base
Franz Glasner <fzglas.hg@dom66.de>
parents:
467
diff
changeset
|
967 return self._base.getvarl_s(*self._path)[key] |
|
437
bbc5b64e137a
- Dict-level access to a configuration key now does variable interpolation.
Franz Glasner <fzglas.hg@dom66.de>
parents:
432
diff
changeset
|
968 |
|
442
94cf5a8722d6
Add proper .get() support for jailed and unjailed configurations
Franz Glasner <fzglas.hg@dom66.de>
parents:
441
diff
changeset
|
969 def get(self, key, default=None): |
|
94cf5a8722d6
Add proper .get() support for jailed and unjailed configurations
Franz Glasner <fzglas.hg@dom66.de>
parents:
441
diff
changeset
|
970 if isinstance(key, tuple): |
|
94cf5a8722d6
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Franz Glasner <fzglas.hg@dom66.de>
parents:
441
diff
changeset
|
971 return self._base.get(self._path + key, default=default) |
|
94cf5a8722d6
Add proper .get() support for jailed and unjailed configurations
Franz Glasner <fzglas.hg@dom66.de>
parents:
441
diff
changeset
|
972 elif isinstance(key, list): |
|
94cf5a8722d6
Add proper .get() support for jailed and unjailed configurations
Franz Glasner <fzglas.hg@dom66.de>
parents:
441
diff
changeset
|
973 return self._base.get(self._path + tuple(key), default=default) |
|
94cf5a8722d6
Add proper .get() support for jailed and unjailed configurations
Franz Glasner <fzglas.hg@dom66.de>
parents:
441
diff
changeset
|
974 else: |
|
94cf5a8722d6
Add proper .get() support for jailed and unjailed configurations
Franz Glasner <fzglas.hg@dom66.de>
parents:
441
diff
changeset
|
975 return self._base.get(self._path + (key, ), default=default) |
|
94cf5a8722d6
Add proper .get() support for jailed and unjailed configurations
Franz Glasner <fzglas.hg@dom66.de>
parents:
441
diff
changeset
|
976 |
|
439
bd27da55483a
Optimized __contains__() implementation for jailed and unjailed configurations
Franz Glasner <fzglas.hg@dom66.de>
parents:
438
diff
changeset
|
977 def __contains__(self, key): |
| 469 | 978 """Containment support for containers""" |
|
441
9d20fab53a19
FIX: Handle "list"-type keys in __contains__ and __getitem__ properly: convert to tuples for contatenation with tuple
Franz Glasner <fzglas.hg@dom66.de>
parents:
440
diff
changeset
|
979 if isinstance(key, tuple): |
|
439
bd27da55483a
Optimized __contains__() implementation for jailed and unjailed configurations
Franz Glasner <fzglas.hg@dom66.de>
parents:
438
diff
changeset
|
980 return (self._path + key) in self._base |
|
441
9d20fab53a19
FIX: Handle "list"-type keys in __contains__ and __getitem__ properly: convert to tuples for contatenation with tuple
Franz Glasner <fzglas.hg@dom66.de>
parents:
440
diff
changeset
|
981 elif isinstance(key, list): |
|
9d20fab53a19
FIX: Handle "list"-type keys in __contains__ and __getitem__ properly: convert to tuples for contatenation with tuple
Franz Glasner <fzglas.hg@dom66.de>
parents:
440
diff
changeset
|
982 return (self._path + tuple(key)) in self._base |
|
439
bd27da55483a
Optimized __contains__() implementation for jailed and unjailed configurations
Franz Glasner <fzglas.hg@dom66.de>
parents:
438
diff
changeset
|
983 else: |
|
bd27da55483a
Optimized __contains__() implementation for jailed and unjailed configurations
Franz Glasner <fzglas.hg@dom66.de>
parents:
438
diff
changeset
|
984 return (self._path + (key, )) in self._base |
|
bd27da55483a
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Franz Glasner <fzglas.hg@dom66.de>
parents:
438
diff
changeset
|
985 |
|
395
0b3ffc34fa5c
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Franz Glasner <f.glasner@feldmann-mg.com>
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diff
changeset
|
986 def getvarl(self, *path, **kwds): |
|
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|
987 return self._base.getvarl(*(self._path + path), **kwds) |
|
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parents:
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diff
changeset
|
988 |
|
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
|
989 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
|
990 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
|
991 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
|
992 |
|
398
b1f82b853290
Jailed configuration: implement more methods: getfirstvarl, getfirstvarl_s, getfirstvar and getfirstvar_s
Franz Glasner <fzglas.hg@dom66.de>
parents:
397
diff
changeset
|
993 def getfirstvarl(self, *paths, **kwds): |
|
b1f82b853290
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Franz Glasner <fzglas.hg@dom66.de>
parents:
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diff
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|
994 real_paths = [] |
|
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Franz Glasner <fzglas.hg@dom66.de>
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397
diff
changeset
|
995 for path in paths: |
|
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Franz Glasner <fzglas.hg@dom66.de>
parents:
397
diff
changeset
|
996 if isinstance(path, (list, tuple)): |
|
509
4c2517e18af0
FIX: Convert a list ito a tuple before appending it to another tuple
Franz Glasner <fzglas.hg@dom66.de>
parents:
507
diff
changeset
|
997 real_paths.append(self._path + tuple(path)) |
|
398
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Franz Glasner <fzglas.hg@dom66.de>
parents:
397
diff
changeset
|
998 elif isinstance(path, dict): |
|
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Franz Glasner <fzglas.hg@dom66.de>
parents:
397
diff
changeset
|
999 raise TypeError( |
|
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Franz Glasner <fzglas.hg@dom66.de>
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diff
changeset
|
1000 "a `dict' is not supported in a jailed configuration") |
|
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Franz Glasner <fzglas.hg@dom66.de>
parents:
397
diff
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|
1001 else: |
|
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diff
changeset
|
1002 raise TypeError("a paths item must be a list or tuple") |
|
b1f82b853290
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Franz Glasner <fzglas.hg@dom66.de>
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diff
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|
1003 return self._base.getfirstvarl(*real_paths, **kwds) |
|
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397
diff
changeset
|
1004 |
|
395
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diff
changeset
|
1005 def getvarl_s(self, *path, **kwds): |
|
0b3ffc34fa5c
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diff
changeset
|
1006 return self._base.getvarl_s(*(self._path + path), **kwds) |
|
0b3ffc34fa5c
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parents:
389
diff
changeset
|
1007 |
|
398
b1f82b853290
Jailed configuration: implement more methods: getfirstvarl, getfirstvarl_s, getfirstvar and getfirstvar_s
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parents:
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diff
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|
1008 def getfirstvarl_s(self, *paths, **kwds): |
|
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397
diff
changeset
|
1009 real_paths = [] |
|
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397
diff
changeset
|
1010 for path in paths: |
|
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Franz Glasner <fzglas.hg@dom66.de>
parents:
397
diff
changeset
|
1011 if isinstance(path, (list, tuple)): |
|
510
acf1e8696d68
FIX: Some other lists that need to converted to tuples
Franz Glasner <fzglas.hg@dom66.de>
parents:
509
diff
changeset
|
1012 real_paths.append(self._path + tuple(path)) |
|
398
b1f82b853290
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parents:
397
diff
changeset
|
1013 elif isinstance(path, dict): |
|
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|
1014 raise TypeError( |
|
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Franz Glasner <fzglas.hg@dom66.de>
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diff
changeset
|
1015 "a `dict' is not supported in a jailed configuration") |
|
b1f82b853290
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Franz Glasner <fzglas.hg@dom66.de>
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diff
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|
1016 else: |
|
b1f82b853290
Jailed configuration: implement more methods: getfirstvarl, getfirstvarl_s, getfirstvar and getfirstvar_s
Franz Glasner <fzglas.hg@dom66.de>
parents:
397
diff
changeset
|
1017 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
|
1018 return self._base.getfirstvarl_s(*real_paths, **kwds) |
|
b1f82b853290
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397
diff
changeset
|
1019 |
|
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
|
1020 def getvar(self, varname, **kwds): |
|
503
a56f1d97a3f3
Use generator comprehensions where possible instead of list comprehensions that are converted to tuples
Franz Glasner <fzglas.hg@dom66.de>
parents:
502
diff
changeset
|
1021 if varname: |
|
511
93a5346907ef
Using generator expressions to directly create tuples is a not so good idea performance-wise.
Franz Glasner <fzglas.hg@dom66.de>
parents:
510
diff
changeset
|
1022 varnameparts = tuple([unquote(vp) |
|
93a5346907ef
Using generator expressions to directly create tuples is a not so good idea performance-wise.
Franz Glasner <fzglas.hg@dom66.de>
parents:
510
diff
changeset
|
1023 for vp in varname.split(_HIER_SEPARATOR)]) |
|
503
a56f1d97a3f3
Use generator comprehensions where possible instead of list comprehensions that are converted to tuples
Franz Glasner <fzglas.hg@dom66.de>
parents:
502
diff
changeset
|
1024 else: |
|
a56f1d97a3f3
Use generator comprehensions where possible instead of list comprehensions that are converted to tuples
Franz Glasner <fzglas.hg@dom66.de>
parents:
502
diff
changeset
|
1025 varnameparts = tuple() |
|
a56f1d97a3f3
Use generator comprehensions where possible instead of list comprehensions that are converted to tuples
Franz Glasner <fzglas.hg@dom66.de>
parents:
502
diff
changeset
|
1026 return self._base.getvarl(*(self._path + varnameparts), **kwds) |
|
395
0b3ffc34fa5c
Begin a jailed configuration with access to a sub-tree of the original configuration
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389
diff
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|
1027 |
|
418
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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
|
1028 def getkeys(self, varname): |
|
503
a56f1d97a3f3
Use generator comprehensions where possible instead of list comprehensions that are converted to tuples
Franz Glasner <fzglas.hg@dom66.de>
parents:
502
diff
changeset
|
1029 if varname: |
|
511
93a5346907ef
Using generator expressions to directly create tuples is a not so good idea performance-wise.
Franz Glasner <fzglas.hg@dom66.de>
parents:
510
diff
changeset
|
1030 varnameparts = tuple([unquote(vp) |
|
93a5346907ef
Using generator expressions to directly create tuples is a not so good idea performance-wise.
Franz Glasner <fzglas.hg@dom66.de>
parents:
510
diff
changeset
|
1031 for vp in varname.split(_HIER_SEPARATOR)]) |
|
503
a56f1d97a3f3
Use generator comprehensions where possible instead of list comprehensions that are converted to tuples
Franz Glasner <fzglas.hg@dom66.de>
parents:
502
diff
changeset
|
1032 else: |
|
a56f1d97a3f3
Use generator comprehensions where possible instead of list comprehensions that are converted to tuples
Franz Glasner <fzglas.hg@dom66.de>
parents:
502
diff
changeset
|
1033 varnameparts = tuple() |
|
a56f1d97a3f3
Use generator comprehensions where possible instead of list comprehensions that are converted to tuples
Franz Glasner <fzglas.hg@dom66.de>
parents:
502
diff
changeset
|
1034 for k in self._base.getkeysl(*(self._path + varnameparts)): |
|
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
|
1035 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
|
1036 |
|
398
b1f82b853290
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Franz Glasner <fzglas.hg@dom66.de>
parents:
397
diff
changeset
|
1037 def getfirstvar(self, *varnames, **kwds): |
|
b1f82b853290
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Franz Glasner <fzglas.hg@dom66.de>
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diff
changeset
|
1038 real_varnames = [self._pathstr + vn for vn in varnames] |
|
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diff
changeset
|
1039 return self._base.getfirstvar(*real_varnames, **kwds) |
|
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diff
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|
1040 |
|
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
|
1041 def getvar_s(self, varname, **kwds): |
|
503
a56f1d97a3f3
Use generator comprehensions where possible instead of list comprehensions that are converted to tuples
Franz Glasner <fzglas.hg@dom66.de>
parents:
502
diff
changeset
|
1042 if varname: |
|
511
93a5346907ef
Using generator expressions to directly create tuples is a not so good idea performance-wise.
Franz Glasner <fzglas.hg@dom66.de>
parents:
510
diff
changeset
|
1043 varnameparts = tuple([unquote(vp) |
|
93a5346907ef
Using generator expressions to directly create tuples is a not so good idea performance-wise.
Franz Glasner <fzglas.hg@dom66.de>
parents:
510
diff
changeset
|
1044 for vp in varname.split(_HIER_SEPARATOR)]) |
|
503
a56f1d97a3f3
Use generator comprehensions where possible instead of list comprehensions that are converted to tuples
Franz Glasner <fzglas.hg@dom66.de>
parents:
502
diff
changeset
|
1045 else: |
|
a56f1d97a3f3
Use generator comprehensions where possible instead of list comprehensions that are converted to tuples
Franz Glasner <fzglas.hg@dom66.de>
parents:
502
diff
changeset
|
1046 varnameparts = tuple() |
|
a56f1d97a3f3
Use generator comprehensions where possible instead of list comprehensions that are converted to tuples
Franz Glasner <fzglas.hg@dom66.de>
parents:
502
diff
changeset
|
1047 return self._base.getvarl_s(*(self._path + varnameparts), **kwds) |
|
398
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|
1048 |
|
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diff
changeset
|
1049 def getfirstvar_s(self, *varnames, **kwds): |
|
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|
1050 real_varnames = [self._pathstr + vn for vn in varnames] |
|
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diff
changeset
|
1051 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
|
1052 |
|
459
9dc9cef1b9cd
Implement proper iteration support for jailed configurations
Franz Glasner <fzglas.hg@dom66.de>
parents:
455
diff
changeset
|
1053 def __iter__(self): |
| 469 | 1054 """Iteration support for containers""" |
|
459
9dc9cef1b9cd
Implement proper iteration support for jailed configurations
Franz Glasner <fzglas.hg@dom66.de>
parents:
455
diff
changeset
|
1055 return iter(self._base.getvarl_s(*self._path)) |
|
9dc9cef1b9cd
Implement proper iteration support for jailed configurations
Franz Glasner <fzglas.hg@dom66.de>
parents:
455
diff
changeset
|
1056 |
|
467
9fcdc42a0457
len-support for jailed configurations: implement a proper __len__() method
Franz Glasner <fzglas.hg@dom66.de>
parents:
460
diff
changeset
|
1057 def __len__(self): |
| 469 | 1058 """Length support for containers""" |
|
467
9fcdc42a0457
len-support for jailed configurations: implement a proper __len__() method
Franz Glasner <fzglas.hg@dom66.de>
parents:
460
diff
changeset
|
1059 return len(self._base.getvarl(*self._path)) |
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1060 |
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1061 if PY2: |
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1062 |
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1063 def __nonzero__(self): |
| 469 | 1064 """Map- and list-style evaluation in boolean context""" |
|
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1065 return bool(self._base.getvarl_s(*self._path)) |
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1066 |
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1067 else: |
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1068 |
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1069 def __bool__(self): |
| 469 | 1070 """Map- and list-style evaluation in boolean context""" |
|
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1071 return bool(self._base.getvarl_s(*self._path)) |
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1072 |
|
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1073 def jailed(self, rootpath=None, root=None, bind_root=True): |
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1074 """Return a "jailed" configuration that effectively is a |
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1075 subjail of the current jail |
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1076 |
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1077 For a more complete description see :meth:`.Configuration.jailed`. |
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1078 |
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1079 """ |
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1080 if rootpath is not None and root is not None: |
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1081 raise ValueError("only one of `rootpath' or `root' can be given") |
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1082 if rootpath is None and root is None: |
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1083 raise ValueError("one of `rootpath' or `root' must be given") |
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1084 if rootpath is not None and not isinstance(rootpath, (list, tuple)): |
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1085 raise TypeError("`rootpath' must be a list or a tuple") |
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1086 if root is not None: |
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1087 # convert to path |
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1088 varns, varname = self._base._split_ns(root) |
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1089 if varns: |
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1090 raise ValueError( |
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1091 "sub-jails do not support namespaces") |
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1092 if varname: |
|
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1093 rootpath = tuple([unquote(p) |
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1094 for p in varname.split(_HIER_SEPARATOR)]) |
|
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1095 else: |
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1096 rootpath = tuple() |
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1097 if self._path: |
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1098 new_rootpath = self._path + tuple(rootpath) |
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1099 else: |
|
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1100 new_rootpath = tuple(rootpath) |
|
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1101 sjc = _JailedConfiguration(*new_rootpath) |
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1102 if bind_root: |
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1103 sjc.rebind(self._base) |
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1104 return sjc |
|
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1105 |
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1106 def __repr__(self): |
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1107 r = "_JailedConfiguration(rootpath=%s)" % n(repr(self._path)) |
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1108 return r |
