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annotate piecrust/app.py @ 585:25df894f9ab9

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internal: Some fixes to the new app configuration. * Tweak order of source registration. * Add some missing default settings. * Fix some validation code. * Add better error handling to validation.
author Ludovic Chabant <ludovic@chabant.com>
date Sat, 02 Jan 2016 16:39:26 -0800
parents 9ccc933ac2c7
children 59268b4d8c71
Ignore whitespace changes - Everywhere: Within whitespace: At end of lines:
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1 import time
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2 import os.path
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3 import hashlib
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4 import logging
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5 from werkzeug.utils import cached_property
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6 from piecrust import (
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7 RESOURCES_DIR,
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8 CACHE_DIR, TEMPLATES_DIR, ASSETS_DIR,
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9 THEME_DIR,
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10 CONFIG_PATH, THEME_CONFIG_PATH)
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11 from piecrust.appconfig import PieCrustConfiguration
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12 from piecrust.cache import ExtensibleCache, NullExtensibleCache
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13 from piecrust.plugins.base import PluginLoader
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14 from piecrust.environment import StandardEnvironment
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15 from piecrust.configuration import ConfigurationError
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16 from piecrust.routing import Route
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17 from piecrust.sources.base import REALM_THEME
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18 from piecrust.taxonomies import Taxonomy
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20
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21 logger = logging.getLogger(__name__)
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22
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23
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24 class PieCrust(object):
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25 def __init__(self, root_dir, cache=True, debug=False, theme_site=False,
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26 env=None):
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27 self.root_dir = root_dir
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28 self.debug = debug
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29 self.theme_site = theme_site
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30 self.plugin_loader = PluginLoader(self)
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32 if cache:
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33 cache_dir = os.path.join(self.cache_dir, 'default')
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34 self.cache = ExtensibleCache(cache_dir)
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35 else:
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36 self.cache = NullExtensibleCache()
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37
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38 self.env = env
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39 if self.env is None:
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40 self.env = StandardEnvironment()
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41 self.env.initialize(self)
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42 self.env.registerTimer('SiteConfigLoad')
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43 self.env.registerTimer('PageLoad')
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44 self.env.registerTimer("PageDataBuild")
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45
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46 @cached_property
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47 def config(self):
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48 logger.debug("Creating site configuration...")
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49 start_time = time.perf_counter()
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50
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51 paths = []
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52 if self.theme_dir:
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53 paths.append(os.path.join(self.theme_dir, THEME_CONFIG_PATH))
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54 paths.append(os.path.join(self.root_dir, CONFIG_PATH))
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55
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56 config_cache = self.cache.getCache('app')
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57 config = PieCrustConfiguration(paths, config_cache)
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58 if self.theme_dir:
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59 # We'll need to flag all page sources as coming from
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60 # the theme.
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61 def _fixupThemeSources(index, config):
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62 if index != 0:
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63 return
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64 sitec = config.get('site')
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65 if sitec is None:
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66 sitec = {}
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67 config['site'] = sitec
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68 srcc = sitec.get('sources')
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69 if srcc is not None:
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70 for sn, sc in srcc.items():
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71 sc['realm'] = REALM_THEME
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72 config.fixups.append(_fixupThemeSources)
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73
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74 self.env.stepTimer('SiteConfigLoad', time.perf_counter() - start_time)
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75 return config
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76
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77 @cached_property
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78 def assets_dirs(self):
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79 assets_dirs = self._get_configurable_dirs(
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80 ASSETS_DIR, 'site/assets_dirs')
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81
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82 # Also add the theme directory, if any.
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83 if self.theme_dir:
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84 default_theme_dir = os.path.join(self.theme_dir, ASSETS_DIR)
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85 if os.path.isdir(default_theme_dir):
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86 assets_dirs.append(default_theme_dir)
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87
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88 return assets_dirs
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89
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90 @cached_property
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91 def templates_dirs(self):
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92 templates_dirs = self._get_configurable_dirs(
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93 TEMPLATES_DIR, 'site/templates_dirs')
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94
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95 # Also, add the theme directory, if any.
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96 if self.theme_dir:
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97 default_theme_dir = os.path.join(self.theme_dir, TEMPLATES_DIR)
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98 if os.path.isdir(default_theme_dir):
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99 templates_dirs.append(default_theme_dir)
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100
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101 return templates_dirs
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102
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103 @cached_property
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104 def theme_dir(self):
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105 td = self._get_dir(THEME_DIR)
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106 if td is not None:
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107 return td
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108 return os.path.join(RESOURCES_DIR, 'theme')
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109
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110 @cached_property
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111 def cache_dir(self):
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112 return os.path.join(self.root_dir, CACHE_DIR)
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113
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114 @property # Not a cached property because its result can change.
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115 def sub_cache_dir(self):
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116 if self.cache.enabled:
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117 return self.cache.base_dir
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118 return None
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119
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120 @cached_property
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121 def sources(self):
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122 defs = {}
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123 for cls in self.plugin_loader.getSources():
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124 defs[cls.SOURCE_NAME] = cls
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125
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126 sources = []
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127 for n, s in self.config.get('site/sources').items():
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128 cls = defs.get(s['type'])
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129 if cls is None:
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130 raise ConfigurationError("No such page source type: %s" %
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131 s['type'])
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132 src = cls(self, n, s)
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133 sources.append(src)
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134 return sources
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135
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136 @cached_property
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137 def routes(self):
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138 routes = []
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139 for r in self.config.get('site/routes'):
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140 rte = Route(self, r)
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141 routes.append(rte)
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142 return routes
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143
3
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144 @cached_property
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145 def taxonomies(self):
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146 taxonomies = []
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147 for tn, tc in self.config.get('site/taxonomies').items():
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148 tax = Taxonomy(self, tn, tc)
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149 taxonomies.append(tax)
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150 return taxonomies
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151
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152 def getSource(self, source_name):
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153 for source in self.sources:
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154 if source.name == source_name:
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155 return source
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156 return None
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157
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158 def getRoutes(self, source_name, *, skip_taxonomies=False):
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159 for route in self.routes:
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160 if route.source_name == source_name:
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161 if not skip_taxonomies or route.taxonomy_name is None:
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162 yield route
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163
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164 def getRoute(self, source_name, route_metadata, *, skip_taxonomies=False):
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165 for route in self.getRoutes(source_name,
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166 skip_taxonomies=skip_taxonomies):
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167 if (route_metadata is None or
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168 route.matchesMetadata(route_metadata)):
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169 return route
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170 return None
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171
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172 def getTaxonomyRoute(self, tax_name, source_name):
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173 for route in self.routes:
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174 if (route.taxonomy_name == tax_name and
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175 route.source_name == source_name):
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176 return route
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177 return None
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178
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179 def getTaxonomy(self, tax_name):
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180 for tax in self.taxonomies:
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181 if tax.name == tax_name:
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182 return tax
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183 return None
0
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184
371
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185 def useSubCache(self, cache_name, cache_key):
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186 cache_hash = hashlib.md5(cache_key.encode('utf8')).hexdigest()
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187 cache_dir = os.path.join(self.cache_dir,
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188 '%s_%s' % (cache_name, cache_hash))
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189 self._useSubCacheDir(cache_dir)
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190
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191 def _useSubCacheDir(self, cache_dir):
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192 assert cache_dir
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193 logger.debug("Moving cache to: %s" % cache_dir)
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194 self.cache = ExtensibleCache(cache_dir)
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195 self.env._onSubCacheDirChanged(self)
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196
0
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197 def _get_dir(self, default_rel_dir):
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198 abs_dir = os.path.join(self.root_dir, default_rel_dir)
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199 if os.path.isdir(abs_dir):
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200 return abs_dir
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201 return None
0
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202
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203 def _get_configurable_dirs(self, default_rel_dir, conf_name):
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204 dirs = []
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205
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206 # Add custom directories from the configuration.
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207 conf_dirs = self.config.get(conf_name)
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208 if conf_dirs is not None:
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209 if isinstance(conf_dirs, str):
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210 dirs.append(os.path.join(self.root_dir, conf_dirs))
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211 else:
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212 dirs += [os.path.join(self.root_dir, p) for p in conf_dirs]
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213
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214 # Add the default directory if it exists.
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215 default_dir = os.path.join(self.root_dir, default_rel_dir)
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216 if os.path.isdir(default_dir):
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217 dirs.append(default_dir)
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218
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219 return dirs
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220
466
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221
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222 def apply_variant_and_values(app, config_variant=None, config_values=None):
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223 if config_variant is not None:
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224 logger.debug("Applying configuration variant '%s'." % config_variant)
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225 app.config.applyVariant('variants/' + config_variant)
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226
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227 if config_values is not None:
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228 for name, value in config_values:
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229 logger.debug("Setting configuration '%s' to: %s" % (name, value))
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230 app.config.set(name, value)
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231