Mercurial > repos > guerler > springsuite

annotate planemo/lib/python3.7/site-packages/galaxy/util/pastescript/loadwsgi.py @ 1:56ad4e20f292 draft

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"planemo upload commit 6eee67778febed82ddd413c3ca40b3183a3898f1"
author guerler
date Fri, 31 Jul 2020 00:32:28 -0400
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1
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1 # (c) 2005 Ian Bicking and contributors; written for Paste (http://pythonpaste.org)
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2 # Licensed under the MIT license: http://www.opensource.org/licenses/mit-license.php
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3
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4 # Mostly taken from PasteDeploy and stripped down for Galaxy
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5
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6 import inspect
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7 import os
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8 import re
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9 import sys
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10
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11 import pkg_resources
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12 from six import iteritems
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13 from six.moves.urllib.parse import unquote
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14
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15 from galaxy.util.getargspec import getfullargspec
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16 from galaxy.util.properties import NicerConfigParser
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17
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18
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19 __all__ = ('loadapp', 'loadserver', 'loadfilter', 'appconfig')
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20
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21 # ---- from paste.deploy.compat --------------------------------------
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22
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23 """Python 2<->3 compatibility module"""
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24
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25
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26 def print_(template, *args, **kwargs):
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27 template = str(template)
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28 if args:
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29 template = template % args
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30 elif kwargs:
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31 template = template % kwargs
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32 sys.stdout.writelines(template)
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33
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34
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35 if sys.version_info < (3, 0):
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36 def reraise(t, e, tb):
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37 exec('raise t, e, tb', dict(t=t, e=e, tb=tb))
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38 else:
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39 def reraise(t, e, tb):
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40 exec('raise e from tb', dict(e=e, tb=tb))
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41
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42 # ---- from paste.deploy.util ----------------------------------------
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43
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44
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45 def fix_type_error(exc_info, callable, varargs, kwargs):
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46 """
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47 Given an exception, this will test if the exception was due to a
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48 signature error, and annotate the error with better information if
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49 so.
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50
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51 Usage::
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52
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53 try:
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54 val = callable(*args, **kw)
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55 except TypeError:
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56 exc_info = fix_type_error(None, callable, args, kw)
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57 raise exc_info[0], exc_info[1], exc_info[2]
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58 """
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59 if exc_info is None:
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60 exc_info = sys.exc_info()
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61 if (exc_info[0] != TypeError or
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62 str(exc_info[1]).find('argument') == -1 or
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63 getattr(exc_info[1], '_type_error_fixed', False)):
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64 return exc_info
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65 exc_info[1]._type_error_fixed = True
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66 argspec = inspect.formatargspec(*getfullargspec(callable))
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67 args = ', '.join(map(_short_repr, varargs))
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68 if kwargs and args:
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69 args += ', '
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70 if kwargs:
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71 kwargs = sorted(kwargs.keys())
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72 args += ', '.join('%s=...' % n for n in kwargs)
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73 gotspec = '(%s)' % args
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74 msg = '%s; got %s, wanted %s' % (exc_info[1], gotspec, argspec)
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75 exc_info[1].args = (msg,)
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76 return exc_info
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77
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78
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79 def _short_repr(v):
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80 v = repr(v)
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81 if len(v) > 12:
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82 v = v[:8] + '...' + v[-4:]
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83 return v
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84
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85
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86 def fix_call(callable, *args, **kw):
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87 """
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88 Call ``callable(*args, **kw)`` fixing any type errors that come out.
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89 """
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90 try:
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91 val = callable(*args, **kw)
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92 except TypeError:
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93 exc_info = fix_type_error(None, callable, args, kw)
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94 reraise(*exc_info)
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95 return val
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96
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97
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98 def lookup_object(spec):
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99 """
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100 Looks up a module or object from a some.module:func_name specification.
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101 To just look up a module, omit the colon and everything after it.
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102 """
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103 parts, target = spec.split(':') if ':' in spec else (spec, None)
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104 module = __import__(parts)
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105
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106 for part in parts.split('.')[1:] + ([target] if target else []):
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107 module = getattr(module, part)
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108
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109 return module
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110
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111 # ---- from paste.deploy.loadwsgi ------------------------------------
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112
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113 ############################################################
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114 # Utility functions
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115 ############################################################
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116
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117
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118 def import_string(s):
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119 return pkg_resources.EntryPoint.parse("x=" + s).load(False)
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120
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121
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122 def _aslist(obj):
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123 """
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124 Turn object into a list; lists and tuples are left as-is, None
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125 becomes [], and everything else turns into a one-element list.
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126 """
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127 if obj is None:
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128 return []
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129 elif isinstance(obj, (list, tuple)):
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130 return obj
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131 else:
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132 return [obj]
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133
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134
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135 def _flatten(lst):
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136 """
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137 Flatten a nested list.
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138 """
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139 if not isinstance(lst, (list, tuple)):
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140 return [lst]
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141 result = []
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142 for item in lst:
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143 result.extend(_flatten(item))
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144 return result
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145
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146
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147 ############################################################
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148 # Object types
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149 ############################################################
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150
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151
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152 class _ObjectType(object):
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153
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154 name = None
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155 egg_protocols = None
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156 config_prefixes = None
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157
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158 def __init__(self):
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159 # Normalize these variables:
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160 self.egg_protocols = [_aslist(p) for p in _aslist(self.egg_protocols)]
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161 self.config_prefixes = [_aslist(p) for p in _aslist(self.config_prefixes)]
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162
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163 def __repr__(self):
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164 return '<%s protocols=%r prefixes=%r>' % (
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165 self.name, self.egg_protocols, self.config_prefixes)
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166
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167 def invoke(self, context):
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168 assert context.protocol in _flatten(self.egg_protocols)
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169 return fix_call(context.object,
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170 context.global_conf, **context.local_conf)
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171
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172
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173 class _App(_ObjectType):
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174
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175 name = 'application'
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176 egg_protocols = ['paste.app_factory', 'paste.composite_factory',
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177 'paste.composit_factory']
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178 config_prefixes = [['app', 'application'], ['composite', 'composit'],
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179 'pipeline', 'filter-app']
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180
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181 def invoke(self, context):
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182 if context.protocol in ('paste.composit_factory',
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183 'paste.composite_factory'):
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184 return fix_call(context.object,
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185 context.loader, context.global_conf,
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186 **context.local_conf)
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187 elif context.protocol == 'paste.app_factory':
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188 return fix_call(context.object, context.global_conf, **context.local_conf)
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189 else:
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190 assert 0, "Protocol %r unknown" % context.protocol
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191
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192
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193 APP = _App()
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194
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195
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196 class _Filter(_ObjectType):
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197 name = 'filter'
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198 egg_protocols = [['paste.filter_factory', 'paste.filter_app_factory']]
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199 config_prefixes = ['filter']
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200
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201 def invoke(self, context):
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202 if context.protocol == 'paste.filter_factory':
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203 return fix_call(context.object,
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204 context.global_conf, **context.local_conf)
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205 elif context.protocol == 'paste.filter_app_factory':
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206 def filter_wrapper(wsgi_app):
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207 # This should be an object, so it has a nicer __repr__
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208 return fix_call(context.object,
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209 wsgi_app, context.global_conf,
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210 **context.local_conf)
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211 return filter_wrapper
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212 else:
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213 assert 0, "Protocol %r unknown" % context.protocol
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214
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215
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216 FILTER = _Filter()
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217
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218
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219 class _Server(_ObjectType):
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220 name = 'server'
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221 egg_protocols = [['paste.server_factory', 'paste.server_runner']]
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222 config_prefixes = ['server']
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223
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224 def invoke(self, context):
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225 if context.protocol == 'paste.server_factory':
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226 return fix_call(context.object,
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227 context.global_conf, **context.local_conf)
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228 elif context.protocol == 'paste.server_runner':
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229 def server_wrapper(wsgi_app):
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230 # This should be an object, so it has a nicer __repr__
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231 return fix_call(context.object,
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232 wsgi_app, context.global_conf,
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233 **context.local_conf)
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234 return server_wrapper
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235 else:
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236 assert 0, "Protocol %r unknown" % context.protocol
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237
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238
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239 SERVER = _Server()
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240
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241
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242 # Virtual type: (@@: There's clearly something crufty here;
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243 # this probably could be more elegant)
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244 class _PipeLine(_ObjectType):
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245 name = 'pipeline'
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246
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247 def invoke(self, context):
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248 app = context.app_context.create()
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249 filters = [c.create() for c in context.filter_contexts]
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250 filters.reverse()
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251 for filter_ in filters:
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252 app = filter_(app)
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253 return app
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254
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255
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256 PIPELINE = _PipeLine()
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257
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258
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259 class _FilterApp(_ObjectType):
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260 name = 'filter_app'
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261
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262 def invoke(self, context):
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263 next_app = context.next_context.create()
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264 filter_ = context.filter_context.create()
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265 return filter_(next_app)
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266
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267
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268 FILTER_APP = _FilterApp()
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269
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270
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271 class _FilterWith(_App):
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272 name = 'filtered_with'
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273
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274 def invoke(self, context):
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275 filter_ = context.filter_context.create()
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276 filtered = context.next_context.create()
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277 if context.next_context.object_type is APP:
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278 return filter_(filtered)
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279 else:
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280 # filtering a filter
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281 def composed(app):
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282 return filter_(filtered(app))
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283 return composed
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284
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285
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286 FILTER_WITH = _FilterWith()
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287
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288 ############################################################
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289 # Loaders
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290 ############################################################
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291
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292
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293 def loadapp(uri, name=None, **kw):
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294 return loadobj(APP, uri, name=name, **kw)
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295
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296
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297 def loadfilter(uri, name=None, **kw):
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298 return loadobj(FILTER, uri, name=name, **kw)
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299
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300
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301 def loadserver(uri, name=None, **kw):
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302 return loadobj(SERVER, uri, name=name, **kw)
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303
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304
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305 def appconfig(uri, name=None, relative_to=None, global_conf=None):
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306 context = loadcontext(APP, uri, name=name,
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307 relative_to=relative_to,
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308 global_conf=global_conf)
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309 return context.config()
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310
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311
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312 _loaders = {}
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313
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314
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315 def loadobj(object_type, uri, name=None, relative_to=None,
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316 global_conf=None):
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317 context = loadcontext(
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318 object_type, uri, name=name, relative_to=relative_to,
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319 global_conf=global_conf)
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320 return context.create()
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321
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322
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323 def loadcontext(object_type, uri, name=None, relative_to=None,
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324 global_conf=None):
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325 if '#' in uri:
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326 if name is None:
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327 uri, name = uri.split('#', 1)
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328 else:
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329 # @@: Ignore fragment or error?
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330 uri = uri.split('#', 1)[0]
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331 if name is None:
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332 name = 'main'
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333 if ':' not in uri:
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334 raise LookupError("URI has no scheme: %r" % uri)
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335 scheme, path = uri.split(':', 1)
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336 scheme = scheme.lower()
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337 if scheme not in _loaders:
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338 raise LookupError(
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339 "URI scheme not known: %r (from %s)"
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340 % (scheme, ', '.join(_loaders.keys())))
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341 return _loaders[scheme](
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342 object_type,
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343 uri, path, name=name, relative_to=relative_to,
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344 global_conf=global_conf)
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345
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346
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347 def _loadconfig(object_type, uri, path, name, relative_to,
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348 global_conf):
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349 isabs = os.path.isabs(path)
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350 # De-Windowsify the paths:
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351 path = path.replace('\\', '/')
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352 if not isabs:
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353 if not relative_to:
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354 raise ValueError(
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355 "Cannot resolve relative uri %r; no relative_to keyword "
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356 "argument given" % uri)
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357 relative_to = relative_to.replace('\\', '/')
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358 if relative_to.endswith('/'):
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359 path = relative_to + path
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360 else:
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361 path = relative_to + '/' + path
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362 if path.startswith('///'):
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363 path = path[2:]
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364 path = unquote(path)
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365 loader = ConfigLoader(path)
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366 if global_conf:
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367 loader.update_defaults(global_conf, overwrite=False)
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368 return loader.get_context(object_type, name, global_conf)
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369
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370
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371 _loaders['config'] = _loadconfig
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372
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373
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374 def _loadegg(object_type, uri, spec, name, relative_to,
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375 global_conf):
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376 loader = EggLoader(spec)
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377 return loader.get_context(object_type, name, global_conf)
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378
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379
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380 _loaders['egg'] = _loadegg
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381
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382
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383 def _loadfunc(object_type, uri, spec, name, relative_to,
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384 global_conf):
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385
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386 loader = FuncLoader(spec)
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387 return loader.get_context(object_type, name, global_conf)
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388
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389
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390 _loaders['call'] = _loadfunc
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391
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392 ############################################################
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393 # Loaders
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394 ############################################################
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395
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396
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397 class _Loader(object):
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398
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399 def get_app(self, name=None, global_conf=None):
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400 return self.app_context(
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401 name=name, global_conf=global_conf).create()
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402
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403 def get_filter(self, name=None, global_conf=None):
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404 return self.filter_context(
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405 name=name, global_conf=global_conf).create()
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406
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407 def get_server(self, name=None, global_conf=None):
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408 return self.server_context(
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409 name=name, global_conf=global_conf).create()
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410
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411 def app_context(self, name=None, global_conf=None):
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412 return self.get_context(
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413 APP, name=name, global_conf=global_conf)
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414
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415 def filter_context(self, name=None, global_conf=None):
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416 return self.get_context(
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417 FILTER, name=name, global_conf=global_conf)
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418
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419 def server_context(self, name=None, global_conf=None):
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420 return self.get_context(
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421 SERVER, name=name, global_conf=global_conf)
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422
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423 _absolute_re = re.compile(r'^[a-zA-Z]+:')
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424
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425 def absolute_name(self, name):
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426 """
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427 Returns true if the name includes a scheme
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428 """
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429 if name is None:
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430 return False
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431 return self._absolute_re.search(name)
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432
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433
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434 class ConfigLoader(_Loader):
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435
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436 def __init__(self, filename):
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437 self.filename = filename = filename.strip()
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438 defaults = {
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439 'here': os.path.dirname(os.path.abspath(filename)),
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440 '__file__': os.path.abspath(filename)
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441 }
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442 self.parser = NicerConfigParser(filename, defaults=defaults)
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443 self.parser.optionxform = str # Don't lower-case keys
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444 with open(filename) as f:
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445 self.parser.read_file(f)
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446
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447 def update_defaults(self, new_defaults, overwrite=True):
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448 for key, value in iteritems(new_defaults):
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449 if not overwrite and key in self.parser._defaults:
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450 continue
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451 self.parser._defaults[key] = value
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452
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453 def get_context(self, object_type, name=None, global_conf=None):
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454 if self.absolute_name(name):
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455 return loadcontext(object_type, name,
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456 relative_to=os.path.dirname(self.filename),
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457 global_conf=global_conf)
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458 section = self.find_config_section(
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459 object_type, name=name)
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460 if global_conf is None:
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461 global_conf = {}
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462 else:
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463 global_conf = global_conf.copy()
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464 defaults = self.parser.defaults()
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465 global_conf.update(defaults)
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466 local_conf = {}
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467 global_additions = {}
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468 get_from_globals = {}
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469 for option in self.parser.options(section):
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470 if option.startswith('set '):
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471 name = option[4:].strip()
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472 global_additions[name] = global_conf[name] = (
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473 self.parser.get(section, option))
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474 elif option.startswith('get '):
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475 name = option[4:].strip()
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476 get_from_globals[name] = self.parser.get(section, option)
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477 else:
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478 if option in defaults:
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479 # @@: It's a global option (?), so skip it
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480 continue
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481 local_conf[option] = self.parser.get(section, option)
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482 for local_var, glob_var in get_from_globals.items():
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483 local_conf[local_var] = global_conf[glob_var]
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484 if object_type in (APP, FILTER) and 'filter-with' in local_conf:
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485 filter_with = local_conf.pop('filter-with')
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486 else:
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487 filter_with = None
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488 if 'require' in local_conf:
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489 for spec in local_conf['require'].split():
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490 pkg_resources.require(spec)
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491 del local_conf['require']
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492 if section.startswith('filter-app:'):
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493 context = self._filter_app_context(
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494 object_type, section, name=name,
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495 global_conf=global_conf, local_conf=local_conf,
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496 global_additions=global_additions)
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497 elif section.startswith('pipeline:'):
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498 context = self._pipeline_app_context(
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499 object_type, section, name=name,
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500 global_conf=global_conf, local_conf=local_conf,
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501 global_additions=global_additions)
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502 elif 'use' in local_conf:
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503 context = self._context_from_use(
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504 object_type, local_conf, global_conf, global_additions,
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505 section)
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506 else:
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507 context = self._context_from_explicit(
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508 object_type, local_conf, global_conf, global_additions,
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509 section)
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510 if filter_with is not None:
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511 filter_with_context = LoaderContext(
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512 obj=None,
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513 object_type=FILTER_WITH,
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514 protocol=None,
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515 global_conf=global_conf, local_conf=local_conf,
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516 loader=self)
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517 filter_with_context.filter_context = self.filter_context(
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518 name=filter_with, global_conf=global_conf)
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519 filter_with_context.next_context = context
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520 return filter_with_context
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diff changeset
521 return context
56ad4e20f292 "planemo upload commit 6eee67778febed82ddd413c3ca40b3183a3898f1"
guerler
parents:
diff changeset
522
56ad4e20f292 "planemo upload commit 6eee67778febed82ddd413c3ca40b3183a3898f1"
guerler
parents:
diff changeset
523 def _context_from_use(self, object_type, local_conf, global_conf,
56ad4e20f292 "planemo upload commit 6eee67778febed82ddd413c3ca40b3183a3898f1"
guerler
parents:
diff changeset
524 global_additions, section):
56ad4e20f292 "planemo upload commit 6eee67778febed82ddd413c3ca40b3183a3898f1"
guerler
parents:
diff changeset
525 use = local_conf.pop('use')
56ad4e20f292 "planemo upload commit 6eee67778febed82ddd413c3ca40b3183a3898f1"
guerler
parents:
diff changeset
526 context = self.get_context(
56ad4e20f292 "planemo upload commit 6eee67778febed82ddd413c3ca40b3183a3898f1"
guerler
parents:
diff changeset
527 object_type, name=use, global_conf=global_conf)
56ad4e20f292 "planemo upload commit 6eee67778febed82ddd413c3ca40b3183a3898f1"
guerler
parents:
diff changeset
528 context.global_conf.update(global_additions)
56ad4e20f292 "planemo upload commit 6eee67778febed82ddd413c3ca40b3183a3898f1"
guerler
parents:
diff changeset
529 context.local_conf.update(local_conf)
56ad4e20f292 "planemo upload commit 6eee67778febed82ddd413c3ca40b3183a3898f1"
guerler
parents:
diff changeset
530 if '__file__' in global_conf:
56ad4e20f292 "planemo upload commit 6eee67778febed82ddd413c3ca40b3183a3898f1"
guerler
parents:
diff changeset
531 # use sections shouldn't overwrite the original __file__
56ad4e20f292 "planemo upload commit 6eee67778febed82ddd413c3ca40b3183a3898f1"
guerler
parents:
diff changeset
532 context.global_conf['__file__'] = global_conf['__file__']
56ad4e20f292 "planemo upload commit 6eee67778febed82ddd413c3ca40b3183a3898f1"
guerler
parents:
diff changeset
533 # @@: Should loader be overwritten?
56ad4e20f292 "planemo upload commit 6eee67778febed82ddd413c3ca40b3183a3898f1"
guerler
parents:
diff changeset
534 context.loader = self
56ad4e20f292 "planemo upload commit 6eee67778febed82ddd413c3ca40b3183a3898f1"
guerler
parents:
diff changeset
535
56ad4e20f292 "planemo upload commit 6eee67778febed82ddd413c3ca40b3183a3898f1"
guerler
parents:
diff changeset
536 if context.protocol is None:
56ad4e20f292 "planemo upload commit 6eee67778febed82ddd413c3ca40b3183a3898f1"
guerler
parents:
diff changeset
537 # Determine protocol from section type
56ad4e20f292 "planemo upload commit 6eee67778febed82ddd413c3ca40b3183a3898f1"
guerler
parents:
diff changeset
538 section_protocol = section.split(':', 1)[0]
56ad4e20f292 "planemo upload commit 6eee67778febed82ddd413c3ca40b3183a3898f1"
guerler
parents:
diff changeset
539 if section_protocol in ('application', 'app'):
56ad4e20f292 "planemo upload commit 6eee67778febed82ddd413c3ca40b3183a3898f1"
guerler
parents:
diff changeset
540 context.protocol = 'paste.app_factory'
56ad4e20f292 "planemo upload commit 6eee67778febed82ddd413c3ca40b3183a3898f1"
guerler
parents:
diff changeset
541 elif section_protocol in ('composit', 'composite'):
56ad4e20f292 "planemo upload commit 6eee67778febed82ddd413c3ca40b3183a3898f1"
guerler
parents:
diff changeset
542 context.protocol = 'paste.composit_factory'
56ad4e20f292 "planemo upload commit 6eee67778febed82ddd413c3ca40b3183a3898f1"
guerler
parents:
diff changeset
543 else:
56ad4e20f292 "planemo upload commit 6eee67778febed82ddd413c3ca40b3183a3898f1"
guerler
parents:
diff changeset
544 # This will work with 'server' and 'filter', otherwise it
56ad4e20f292 "planemo upload commit 6eee67778febed82ddd413c3ca40b3183a3898f1"
guerler
parents:
diff changeset
545 # could fail but there is an error message already for
56ad4e20f292 "planemo upload commit 6eee67778febed82ddd413c3ca40b3183a3898f1"
guerler
parents:
diff changeset
546 # bad protocols
56ad4e20f292 "planemo upload commit 6eee67778febed82ddd413c3ca40b3183a3898f1"
guerler
parents:
diff changeset
547 context.protocol = 'paste.%s_factory' % section_protocol
56ad4e20f292 "planemo upload commit 6eee67778febed82ddd413c3ca40b3183a3898f1"
guerler
parents:
diff changeset
548
56ad4e20f292 "planemo upload commit 6eee67778febed82ddd413c3ca40b3183a3898f1"
guerler
parents:
diff changeset
549 return context
56ad4e20f292 "planemo upload commit 6eee67778febed82ddd413c3ca40b3183a3898f1"
guerler
parents:
diff changeset
550
56ad4e20f292 "planemo upload commit 6eee67778febed82ddd413c3ca40b3183a3898f1"
guerler
parents:
diff changeset
551 def _context_from_explicit(self, object_type, local_conf, global_conf,
56ad4e20f292 "planemo upload commit 6eee67778febed82ddd413c3ca40b3183a3898f1"
guerler
parents:
diff changeset
552 global_addition, section):
56ad4e20f292 "planemo upload commit 6eee67778febed82ddd413c3ca40b3183a3898f1"
guerler
parents:
diff changeset
553 possible = []
56ad4e20f292 "planemo upload commit 6eee67778febed82ddd413c3ca40b3183a3898f1"
guerler
parents:
diff changeset
554 for protocol_options in object_type.egg_protocols:
56ad4e20f292 "planemo upload commit 6eee67778febed82ddd413c3ca40b3183a3898f1"
guerler
parents:
diff changeset
555 for protocol in protocol_options:
56ad4e20f292 "planemo upload commit 6eee67778febed82ddd413c3ca40b3183a3898f1"
guerler
parents:
diff changeset
556 if protocol in local_conf:
56ad4e20f292 "planemo upload commit 6eee67778febed82ddd413c3ca40b3183a3898f1"
guerler
parents:
diff changeset
557 possible.append((protocol, local_conf[protocol]))
56ad4e20f292 "planemo upload commit 6eee67778febed82ddd413c3ca40b3183a3898f1"
guerler
parents:
diff changeset
558 break
56ad4e20f292 "planemo upload commit 6eee67778febed82ddd413c3ca40b3183a3898f1"
guerler
parents:
diff changeset
559 if len(possible) > 1:
56ad4e20f292 "planemo upload commit 6eee67778febed82ddd413c3ca40b3183a3898f1"
guerler
parents:
diff changeset
560 raise LookupError(
56ad4e20f292 "planemo upload commit 6eee67778febed82ddd413c3ca40b3183a3898f1"
guerler
parents:
diff changeset
561 "Multiple protocols given in section %r: %s"
56ad4e20f292 "planemo upload commit 6eee67778febed82ddd413c3ca40b3183a3898f1"
guerler
parents:
diff changeset
562 % (section, possible))
56ad4e20f292 "planemo upload commit 6eee67778febed82ddd413c3ca40b3183a3898f1"
guerler
parents:
diff changeset
563 if not possible:
56ad4e20f292 "planemo upload commit 6eee67778febed82ddd413c3ca40b3183a3898f1"
guerler
parents:
diff changeset
564 raise LookupError(
56ad4e20f292 "planemo upload commit 6eee67778febed82ddd413c3ca40b3183a3898f1"
guerler
parents:
diff changeset
565 "No loader given in section %r" % section)
56ad4e20f292 "planemo upload commit 6eee67778febed82ddd413c3ca40b3183a3898f1"
guerler
parents:
diff changeset
566 found_protocol, found_expr = possible[0]
56ad4e20f292 "planemo upload commit 6eee67778febed82ddd413c3ca40b3183a3898f1"
guerler
parents:
diff changeset
567 del local_conf[found_protocol]
56ad4e20f292 "planemo upload commit 6eee67778febed82ddd413c3ca40b3183a3898f1"
guerler
parents:
diff changeset
568 value = import_string(found_expr)
56ad4e20f292 "planemo upload commit 6eee67778febed82ddd413c3ca40b3183a3898f1"
guerler
parents:
diff changeset
569 context = LoaderContext(
56ad4e20f292 "planemo upload commit 6eee67778febed82ddd413c3ca40b3183a3898f1"
guerler
parents:
diff changeset
570 value, object_type, found_protocol,
56ad4e20f292 "planemo upload commit 6eee67778febed82ddd413c3ca40b3183a3898f1"
guerler
parents:
diff changeset
571 global_conf, local_conf, self)
56ad4e20f292 "planemo upload commit 6eee67778febed82ddd413c3ca40b3183a3898f1"
guerler
parents:
diff changeset
572 return context
56ad4e20f292 "planemo upload commit 6eee67778febed82ddd413c3ca40b3183a3898f1"
guerler
parents:
diff changeset
573
56ad4e20f292 "planemo upload commit 6eee67778febed82ddd413c3ca40b3183a3898f1"
guerler
parents:
diff changeset
574 def _filter_app_context(self, object_type, section, name,
56ad4e20f292 "planemo upload commit 6eee67778febed82ddd413c3ca40b3183a3898f1"
guerler
parents:
diff changeset
575 global_conf, local_conf, global_additions):
56ad4e20f292 "planemo upload commit 6eee67778febed82ddd413c3ca40b3183a3898f1"
guerler
parents:
diff changeset
576 if 'next' not in local_conf:
56ad4e20f292 "planemo upload commit 6eee67778febed82ddd413c3ca40b3183a3898f1"
guerler
parents:
diff changeset
577 raise LookupError(
56ad4e20f292 "planemo upload commit 6eee67778febed82ddd413c3ca40b3183a3898f1"
guerler
parents:
diff changeset
578 "The [%s] section in %s is missing a 'next' setting"
56ad4e20f292 "planemo upload commit 6eee67778febed82ddd413c3ca40b3183a3898f1"
guerler
parents:
diff changeset
579 % (section, self.filename))
56ad4e20f292 "planemo upload commit 6eee67778febed82ddd413c3ca40b3183a3898f1"
guerler
parents:
diff changeset
580 next_name = local_conf.pop('next')
56ad4e20f292 "planemo upload commit 6eee67778febed82ddd413c3ca40b3183a3898f1"
guerler
parents:
diff changeset
581 context = LoaderContext(None, FILTER_APP, None, global_conf,
56ad4e20f292 "planemo upload commit 6eee67778febed82ddd413c3ca40b3183a3898f1"
guerler
parents:
diff changeset
582 local_conf, self)
56ad4e20f292 "planemo upload commit 6eee67778febed82ddd413c3ca40b3183a3898f1"
guerler
parents:
diff changeset
583 context.next_context = self.get_context(
56ad4e20f292 "planemo upload commit 6eee67778febed82ddd413c3ca40b3183a3898f1"
guerler
parents:
diff changeset
584 APP, next_name, global_conf)
56ad4e20f292 "planemo upload commit 6eee67778febed82ddd413c3ca40b3183a3898f1"
guerler
parents:
diff changeset
585 if 'use' in local_conf:
56ad4e20f292 "planemo upload commit 6eee67778febed82ddd413c3ca40b3183a3898f1"
guerler
parents:
diff changeset
586 context.filter_context = self._context_from_use(
56ad4e20f292 "planemo upload commit 6eee67778febed82ddd413c3ca40b3183a3898f1"
guerler
parents:
diff changeset
587 FILTER, local_conf, global_conf, global_additions,
56ad4e20f292 "planemo upload commit 6eee67778febed82ddd413c3ca40b3183a3898f1"
guerler
parents:
diff changeset
588 section)
56ad4e20f292 "planemo upload commit 6eee67778febed82ddd413c3ca40b3183a3898f1"
guerler
parents:
diff changeset
589 else:
56ad4e20f292 "planemo upload commit 6eee67778febed82ddd413c3ca40b3183a3898f1"
guerler
parents:
diff changeset
590 context.filter_context = self._context_from_explicit(
56ad4e20f292 "planemo upload commit 6eee67778febed82ddd413c3ca40b3183a3898f1"
guerler
parents:
diff changeset
591 FILTER, local_conf, global_conf, global_additions,
56ad4e20f292 "planemo upload commit 6eee67778febed82ddd413c3ca40b3183a3898f1"
guerler
parents:
diff changeset
592 section)
56ad4e20f292 "planemo upload commit 6eee67778febed82ddd413c3ca40b3183a3898f1"
guerler
parents:
diff changeset
593 return context
56ad4e20f292 "planemo upload commit 6eee67778febed82ddd413c3ca40b3183a3898f1"
guerler
parents:
diff changeset
594
56ad4e20f292 "planemo upload commit 6eee67778febed82ddd413c3ca40b3183a3898f1"
guerler
parents:
diff changeset
595 def _pipeline_app_context(self, object_type, section, name,
56ad4e20f292 "planemo upload commit 6eee67778febed82ddd413c3ca40b3183a3898f1"
guerler
parents:
diff changeset
596 global_conf, local_conf, global_additions):
56ad4e20f292 "planemo upload commit 6eee67778febed82ddd413c3ca40b3183a3898f1"
guerler
parents:
diff changeset
597 if 'pipeline' not in local_conf:
56ad4e20f292 "planemo upload commit 6eee67778febed82ddd413c3ca40b3183a3898f1"
guerler
parents:
diff changeset
598 raise LookupError(
56ad4e20f292 "planemo upload commit 6eee67778febed82ddd413c3ca40b3183a3898f1"
guerler
parents:
diff changeset
599 "The [%s] section in %s is missing a 'pipeline' setting"
56ad4e20f292 "planemo upload commit 6eee67778febed82ddd413c3ca40b3183a3898f1"
guerler
parents:
diff changeset
600 % (section, self.filename))
56ad4e20f292 "planemo upload commit 6eee67778febed82ddd413c3ca40b3183a3898f1"
guerler
parents:
diff changeset
601 pipeline = local_conf.pop('pipeline').split()
56ad4e20f292 "planemo upload commit 6eee67778febed82ddd413c3ca40b3183a3898f1"
guerler
parents:
diff changeset
602 if local_conf:
56ad4e20f292 "planemo upload commit 6eee67778febed82ddd413c3ca40b3183a3898f1"
guerler
parents:
diff changeset
603 raise LookupError(
56ad4e20f292 "planemo upload commit 6eee67778febed82ddd413c3ca40b3183a3898f1"
guerler
parents:
diff changeset
604 "The [%s] pipeline section in %s has extra "
56ad4e20f292 "planemo upload commit 6eee67778febed82ddd413c3ca40b3183a3898f1"
guerler
parents:
diff changeset
605 "(disallowed) settings: %s"
56ad4e20f292 "planemo upload commit 6eee67778febed82ddd413c3ca40b3183a3898f1"
guerler
parents:
diff changeset
606 % (', '.join(local_conf.keys())))
56ad4e20f292 "planemo upload commit 6eee67778febed82ddd413c3ca40b3183a3898f1"
guerler
parents:
diff changeset
607 context = LoaderContext(None, PIPELINE, None, global_conf,
56ad4e20f292 "planemo upload commit 6eee67778febed82ddd413c3ca40b3183a3898f1"
guerler
parents:
diff changeset
608 local_conf, self)
56ad4e20f292 "planemo upload commit 6eee67778febed82ddd413c3ca40b3183a3898f1"
guerler
parents:
diff changeset
609 context.app_context = self.get_context(
56ad4e20f292 "planemo upload commit 6eee67778febed82ddd413c3ca40b3183a3898f1"
guerler
parents:
diff changeset
610 APP, pipeline[-1], global_conf)
56ad4e20f292 "planemo upload commit 6eee67778febed82ddd413c3ca40b3183a3898f1"
guerler
parents:
diff changeset
611 context.filter_contexts = [
56ad4e20f292 "planemo upload commit 6eee67778febed82ddd413c3ca40b3183a3898f1"
guerler
parents:
diff changeset
612 self.get_context(FILTER, pname, global_conf)
56ad4e20f292 "planemo upload commit 6eee67778febed82ddd413c3ca40b3183a3898f1"
guerler
parents:
diff changeset
613 for pname in pipeline[:-1]]
56ad4e20f292 "planemo upload commit 6eee67778febed82ddd413c3ca40b3183a3898f1"
guerler
parents:
diff changeset
614 return context
56ad4e20f292 "planemo upload commit 6eee67778febed82ddd413c3ca40b3183a3898f1"
guerler
parents:
diff changeset
615
56ad4e20f292 "planemo upload commit 6eee67778febed82ddd413c3ca40b3183a3898f1"
guerler
parents:
diff changeset
616 def find_config_section(self, object_type, name=None):
56ad4e20f292 "planemo upload commit 6eee67778febed82ddd413c3ca40b3183a3898f1"
guerler
parents:
diff changeset
617 """
56ad4e20f292 "planemo upload commit 6eee67778febed82ddd413c3ca40b3183a3898f1"
guerler
parents:
diff changeset
618 Return the section name with the given name prefix (following the
56ad4e20f292 "planemo upload commit 6eee67778febed82ddd413c3ca40b3183a3898f1"
guerler
parents:
diff changeset
619 same pattern as ``protocol_desc`` in ``config``. It must have the
56ad4e20f292 "planemo upload commit 6eee67778febed82ddd413c3ca40b3183a3898f1"
guerler
parents:
diff changeset
620 given name, or for ``'main'`` an empty name is allowed. The
56ad4e20f292 "planemo upload commit 6eee67778febed82ddd413c3ca40b3183a3898f1"
guerler
parents:
diff changeset
621 prefix must be followed by a ``:``.
56ad4e20f292 "planemo upload commit 6eee67778febed82ddd413c3ca40b3183a3898f1"
guerler
parents:
diff changeset
622
56ad4e20f292 "planemo upload commit 6eee67778febed82ddd413c3ca40b3183a3898f1"
guerler
parents:
diff changeset
623 Case is *not* ignored.
56ad4e20f292 "planemo upload commit 6eee67778febed82ddd413c3ca40b3183a3898f1"
guerler
parents:
diff changeset
624 """
56ad4e20f292 "planemo upload commit 6eee67778febed82ddd413c3ca40b3183a3898f1"
guerler
parents:
diff changeset
625 possible = []
56ad4e20f292 "planemo upload commit 6eee67778febed82ddd413c3ca40b3183a3898f1"
guerler
parents:
diff changeset
626 for name_options in object_type.config_prefixes:
56ad4e20f292 "planemo upload commit 6eee67778febed82ddd413c3ca40b3183a3898f1"
guerler
parents:
diff changeset
627 for name_prefix in name_options:
56ad4e20f292 "planemo upload commit 6eee67778febed82ddd413c3ca40b3183a3898f1"
guerler
parents:
diff changeset
628 found = self._find_sections(
56ad4e20f292 "planemo upload commit 6eee67778febed82ddd413c3ca40b3183a3898f1"
guerler
parents:
diff changeset
629 self.parser.sections(), name_prefix, name)
56ad4e20f292 "planemo upload commit 6eee67778febed82ddd413c3ca40b3183a3898f1"
guerler
parents:
diff changeset
630 if found:
56ad4e20f292 "planemo upload commit 6eee67778febed82ddd413c3ca40b3183a3898f1"
guerler
parents:
diff changeset
631 possible.extend(found)
56ad4e20f292 "planemo upload commit 6eee67778febed82ddd413c3ca40b3183a3898f1"
guerler
parents:
diff changeset
632 break
56ad4e20f292 "planemo upload commit 6eee67778febed82ddd413c3ca40b3183a3898f1"
guerler
parents:
diff changeset
633 if not possible:
56ad4e20f292 "planemo upload commit 6eee67778febed82ddd413c3ca40b3183a3898f1"
guerler
parents:
diff changeset
634 raise LookupError(
56ad4e20f292 "planemo upload commit 6eee67778febed82ddd413c3ca40b3183a3898f1"
guerler
parents:
diff changeset
635 "No section %r (prefixed by %s) found in config %s"
56ad4e20f292 "planemo upload commit 6eee67778febed82ddd413c3ca40b3183a3898f1"
guerler
parents:
diff changeset
636 % (name,
56ad4e20f292 "planemo upload commit 6eee67778febed82ddd413c3ca40b3183a3898f1"
guerler
parents:
diff changeset
637 ' or '.join(map(repr, _flatten(object_type.config_prefixes))),
56ad4e20f292 "planemo upload commit 6eee67778febed82ddd413c3ca40b3183a3898f1"
guerler
parents:
diff changeset
638 self.filename))
56ad4e20f292 "planemo upload commit 6eee67778febed82ddd413c3ca40b3183a3898f1"
guerler
parents:
diff changeset
639 if len(possible) > 1:
56ad4e20f292 "planemo upload commit 6eee67778febed82ddd413c3ca40b3183a3898f1"
guerler
parents:
diff changeset
640 raise LookupError(
56ad4e20f292 "planemo upload commit 6eee67778febed82ddd413c3ca40b3183a3898f1"
guerler
parents:
diff changeset
641 "Ambiguous section names %r for section %r (prefixed by %s) "
56ad4e20f292 "planemo upload commit 6eee67778febed82ddd413c3ca40b3183a3898f1"
guerler
parents:
diff changeset
642 "found in config %s"
56ad4e20f292 "planemo upload commit 6eee67778febed82ddd413c3ca40b3183a3898f1"
guerler
parents:
diff changeset
643 % (possible, name,
56ad4e20f292 "planemo upload commit 6eee67778febed82ddd413c3ca40b3183a3898f1"
guerler
parents:
diff changeset
644 ' or '.join(map(repr, _flatten(object_type.config_prefixes))),
56ad4e20f292 "planemo upload commit 6eee67778febed82ddd413c3ca40b3183a3898f1"
guerler
parents:
diff changeset
645 self.filename))
56ad4e20f292 "planemo upload commit 6eee67778febed82ddd413c3ca40b3183a3898f1"
guerler
parents:
diff changeset
646 return possible[0]
56ad4e20f292 "planemo upload commit 6eee67778febed82ddd413c3ca40b3183a3898f1"
guerler
parents:
diff changeset
647
56ad4e20f292 "planemo upload commit 6eee67778febed82ddd413c3ca40b3183a3898f1"
guerler
parents:
diff changeset
648 def _find_sections(self, sections, name_prefix, name):
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diff changeset
649 found = []
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parents:
diff changeset
650 if name is None:
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parents:
diff changeset
651 if name_prefix in sections:
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parents:
diff changeset
652 found.append(name_prefix)
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parents:
diff changeset
653 name = 'main'
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parents:
diff changeset
654 for section in sections:
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parents:
diff changeset
655 if section.startswith(name_prefix + ':'):
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parents:
diff changeset
656 if section[len(name_prefix) + 1:].strip() == name:
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parents:
diff changeset
657 found.append(section)
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diff changeset
658 return found
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parents:
diff changeset
659
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diff changeset
660
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diff changeset
661 class EggLoader(_Loader):
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diff changeset
662
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diff changeset
663 def __init__(self, spec):
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diff changeset
664 self.spec = spec
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diff changeset
665
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diff changeset
666 def get_context(self, object_type, name=None, global_conf=None):
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parents:
diff changeset
667 if self.absolute_name(name):
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parents:
diff changeset
668 return loadcontext(object_type, name,
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parents:
diff changeset
669 global_conf=global_conf)
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diff changeset
670 entry_point, protocol, ep_name = self.find_egg_entry_point(
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parents:
diff changeset
671 object_type, name=name)
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parents:
diff changeset
672 return LoaderContext(
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parents:
diff changeset
673 entry_point,
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parents:
diff changeset
674 object_type,
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diff changeset
675 protocol,
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diff changeset
676 global_conf or {}, {},
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diff changeset
677 self,
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diff changeset
678 distribution=pkg_resources.get_distribution(self.spec),
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parents:
diff changeset
679 entry_point_name=ep_name)
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parents:
diff changeset
680
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parents:
diff changeset
681 def find_egg_entry_point(self, object_type, name=None):
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diff changeset
682 """
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diff changeset
683 Returns the (entry_point, protocol) for the with the given
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parents:
diff changeset
684 ``name``.
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parents:
diff changeset
685 """
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parents:
diff changeset
686 if name is None:
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parents:
diff changeset
687 name = 'main'
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diff changeset
688 possible = []
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parents:
diff changeset
689 for protocol_options in object_type.egg_protocols:
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parents:
diff changeset
690 for protocol in protocol_options:
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parents:
diff changeset
691 pkg_resources.require(self.spec)
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parents:
diff changeset
692 entry = pkg_resources.get_entry_info(
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guerler
parents:
diff changeset
693 self.spec,
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parents:
diff changeset
694 protocol,
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parents:
diff changeset
695 name)
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parents:
diff changeset
696 if entry is not None:
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parents:
diff changeset
697 possible.append((entry.load(), protocol, entry.name))
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parents:
diff changeset
698 break
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parents:
diff changeset
699 if not possible:
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guerler
parents:
diff changeset
700 # Better exception
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parents:
diff changeset
701 dist = pkg_resources.get_distribution(self.spec)
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parents:
diff changeset
702 raise LookupError(
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parents:
diff changeset
703 "Entry point %r not found in egg %r (dir: %s; protocols: %s; "
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parents:
diff changeset
704 "entry_points: %s)"
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parents:
diff changeset
705 % (name, self.spec,
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parents:
diff changeset
706 dist.location,
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diff changeset
707 ', '.join(_flatten(object_type.egg_protocols)),
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parents:
diff changeset
708 ', '.join(_flatten([
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parents:
diff changeset
709 list((pkg_resources.get_entry_info(self.spec, prot, name) or {}).keys())
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parents:
diff changeset
710 for prot in protocol_options] or '(no entry points)'))))
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parents:
diff changeset
711 if len(possible) > 1:
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diff changeset
712 raise LookupError(
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parents:
diff changeset
713 "Ambiguous entry points for %r in egg %r (protocols: %s)"
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parents:
diff changeset
714 % (name, self.spec, ', '.join(_flatten(protocol_options))))
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guerler
parents:
diff changeset
715 return possible[0]
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guerler
parents:
diff changeset
716
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guerler
parents:
diff changeset
717
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parents:
diff changeset
718 class FuncLoader(_Loader):
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parents:
diff changeset
719 """ Loader that supports specifying functions inside modules, without
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guerler
parents:
diff changeset
720 using eggs at all. Configuration should be in the format:
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guerler
parents:
diff changeset
721 use = call:my.module.path:function_name
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parents:
diff changeset
722
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guerler
parents:
diff changeset
723 Dot notation is supported in both the module and function name, e.g.:
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parents:
diff changeset
724 use = call:my.module.path:object.method
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parents:
diff changeset
725 """
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parents:
diff changeset
726
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parents:
diff changeset
727 def __init__(self, spec):
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diff changeset
728 self.spec = spec
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diff changeset
729 if ':' not in spec:
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diff changeset
730 raise LookupError("Configuration not in format module:function")
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parents:
diff changeset
731
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diff changeset
732 def get_context(self, object_type, name=None, global_conf=None):
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guerler
parents:
diff changeset
733 obj = lookup_object(self.spec)
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guerler
parents:
diff changeset
734 return LoaderContext(
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guerler
parents:
diff changeset
735 obj,
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parents:
diff changeset
736 object_type,
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parents:
diff changeset
737 None, # determine protocol from section type
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parents:
diff changeset
738 global_conf or {},
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parents:
diff changeset
739 {},
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parents:
diff changeset
740 self,
56ad4e20f292 "planemo upload commit 6eee67778febed82ddd413c3ca40b3183a3898f1"
guerler
parents:
diff changeset
741 )
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parents:
diff changeset
742
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parents:
diff changeset
743
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parents:
diff changeset
744 class LoaderContext(object):
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parents:
diff changeset
745
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parents:
diff changeset
746 def __init__(self, obj, object_type, protocol,
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guerler
parents:
diff changeset
747 global_conf, local_conf, loader,
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guerler
parents:
diff changeset
748 distribution=None, entry_point_name=None):
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guerler
parents:
diff changeset
749 self.object = obj
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guerler
parents:
diff changeset
750 self.object_type = object_type
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guerler
parents:
diff changeset
751 self.protocol = protocol
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parents:
diff changeset
752 # assert protocol in _flatten(object_type.egg_protocols), (
56ad4e20f292 "planemo upload commit 6eee67778febed82ddd413c3ca40b3183a3898f1"
guerler
parents:
diff changeset
753 # "Bad protocol %r; should be one of %s"
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guerler
parents:
diff changeset
754 # % (protocol, ', '.join(map(repr, _flatten(object_type.egg_protocols)))))
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guerler
parents:
diff changeset
755 self.global_conf = global_conf
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parents:
diff changeset
756 self.local_conf = local_conf
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parents:
diff changeset
757 self.loader = loader
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parents:
diff changeset
758 self.distribution = distribution
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diff changeset
759 self.entry_point_name = entry_point_name
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parents:
diff changeset
760
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diff changeset
761 def create(self):
56ad4e20f292 "planemo upload commit 6eee67778febed82ddd413c3ca40b3183a3898f1"
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diff changeset
762 return self.object_type.invoke(self)
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parents:
diff changeset
763
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parents:
diff changeset
764 def config(self):
56ad4e20f292 "planemo upload commit 6eee67778febed82ddd413c3ca40b3183a3898f1"
guerler
parents:
diff changeset
765 conf = AttrDict(self.global_conf)
56ad4e20f292 "planemo upload commit 6eee67778febed82ddd413c3ca40b3183a3898f1"
guerler
parents:
diff changeset
766 conf.update(self.local_conf)
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guerler
parents:
diff changeset
767 conf.local_conf = self.local_conf
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guerler
parents:
diff changeset
768 conf.global_conf = self.global_conf
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guerler
parents:
diff changeset
769 conf.context = self
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guerler
parents:
diff changeset
770 return conf
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guerler
parents:
diff changeset
771
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guerler
parents:
diff changeset
772
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guerler
parents:
diff changeset
773 class AttrDict(dict):
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guerler
parents:
diff changeset
774 """
56ad4e20f292 "planemo upload commit 6eee67778febed82ddd413c3ca40b3183a3898f1"
guerler
parents:
diff changeset
775 A dictionary that can be assigned to.
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guerler
parents:
diff changeset
776 """
56ad4e20f292 "planemo upload commit 6eee67778febed82ddd413c3ca40b3183a3898f1"
guerler
parents:
diff changeset
777 pass