Mercurial > repos > shellac > sam_consensus_v3
annotate env/lib/python3.9/site-packages/galaxy/util/properties.py @ 0:4f3585e2f14b draft default tip
"planemo upload commit 60cee0fc7c0cda8592644e1aad72851dec82c959"
author | shellac |
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date | Mon, 22 Mar 2021 18:12:50 +0000 |
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1 """ Module used to blend ini, environment, and explicit dictionary properties |
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2 to determine application configuration. Some hard coded defaults for Galaxy but |
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3 this should be reusable by tool shed and pulsar as well. |
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4 """ |
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5 import os |
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6 import os.path |
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7 import sys |
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8 from configparser import ConfigParser |
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9 from functools import partial |
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10 from itertools import product, starmap |
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11 |
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12 import yaml |
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13 |
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14 from galaxy.exceptions import InvalidFileFormatError |
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15 from galaxy.util.path import extensions, has_ext, joinext |
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16 |
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17 |
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18 def find_config_file(names, exts=None, dirs=None, include_samples=False): |
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19 """Locate a config file in multiple directories, with multiple extensions. |
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20 |
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21 >>> from shutil import rmtree |
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22 >>> from tempfile import mkdtemp |
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23 >>> def touch(d, f): |
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24 ... open(os.path.join(d, f), 'w').close() |
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25 >>> def _find_config_file(*args, **kwargs): |
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26 ... return find_config_file(*args, **kwargs).replace(d, '') |
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27 >>> d = mkdtemp() |
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28 >>> d1 = os.path.join(d, 'd1') |
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29 >>> d2 = os.path.join(d, 'd2') |
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30 >>> os.makedirs(d1) |
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31 >>> os.makedirs(d2) |
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32 >>> touch(d1, 'foo.ini') |
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33 >>> touch(d1, 'foo.bar') |
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34 >>> touch(d1, 'baz.ini.sample') |
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35 >>> touch(d2, 'foo.yaml') |
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36 >>> touch(d2, 'baz.yml') |
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37 >>> _find_config_file('foo', dirs=(d1, d2)) |
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38 '/d1/foo.ini' |
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39 >>> _find_config_file('baz', dirs=(d1, d2)) |
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40 '/d2/baz.yml' |
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41 >>> _find_config_file('baz', dirs=(d1, d2), include_samples=True) |
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42 '/d2/baz.yml' |
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43 >>> _find_config_file('baz', dirs=(d1,), include_samples=True) |
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44 '/d1/baz.ini.sample' |
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45 >>> _find_config_file('foo', dirs=(d2, d1)) |
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46 '/d2/foo.yaml' |
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47 >>> find_config_file('quux', dirs=(d,)) |
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48 >>> _find_config_file('foo', exts=('bar', 'ini'), dirs=(d1,)) |
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49 '/d1/foo.bar' |
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50 >>> rmtree(d) |
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51 """ |
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52 found = __find_config_files( |
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53 names, |
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54 exts=exts or extensions['yaml'] + extensions['ini'], |
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55 dirs=dirs or [os.getcwd(), os.path.join(os.getcwd(), 'config')], |
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56 include_samples=include_samples, |
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57 ) |
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58 if not found: |
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59 return None |
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60 # doesn't really make sense to log here but we should probably generate a warning of some kind if more than one |
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61 # config is found. |
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62 return found[0] |
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63 |
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64 |
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65 def load_app_properties( |
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66 kwds=None, |
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67 ini_file=None, |
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68 ini_section=None, |
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69 config_file=None, |
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70 config_section=None, |
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71 config_prefix="GALAXY_CONFIG_" |
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72 ): |
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73 if config_file is None: |
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74 config_file = ini_file |
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75 config_section = ini_section |
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76 |
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77 # read from file or init w/no file |
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78 if config_file: |
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79 properties = read_properties_from_file(config_file, config_section) |
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80 else: |
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81 properties = {'__file__': None} |
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82 |
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83 # update from kwds |
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84 if kwds: |
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85 properties.update(kwds) |
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86 |
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87 # update from env |
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88 override_prefix = "%sOVERRIDE_" % config_prefix |
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89 for key in os.environ: |
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90 if key.startswith(override_prefix): |
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91 config_key = key[len(override_prefix):].lower() |
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92 properties[config_key] = os.environ[key] |
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93 elif key.startswith(config_prefix): |
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94 config_key = key[len(config_prefix):].lower() |
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95 if config_key not in properties: |
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96 properties[config_key] = os.environ[key] |
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97 |
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98 return properties |
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99 |
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100 |
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101 def read_properties_from_file(config_file, config_section=None): |
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102 properties = {} |
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103 if has_ext(config_file, 'yaml', aliases=True, ignore='sample'): |
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104 if config_section is None: |
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105 config_section = "galaxy" |
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106 properties.update(__default_properties(config_file)) |
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107 raw_properties = _read_from_yaml_file(config_file) |
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108 if raw_properties: |
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109 properties.update(raw_properties.get(config_section) or {}) |
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110 elif has_ext(config_file, 'ini', aliases=True, ignore='sample'): |
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111 if config_section is None: |
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112 config_section = "app:main" |
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113 parser = nice_config_parser(config_file) # default properties loaded w/parser |
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114 if parser.has_section(config_section): |
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115 properties.update(dict(parser.items(config_section))) |
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116 else: |
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117 properties.update(parser.defaults()) |
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118 else: |
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119 raise InvalidFileFormatError("File '%s' doesn't have a supported extension" % config_file) |
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120 return properties |
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121 |
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122 |
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123 def _read_from_yaml_file(path): |
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124 with open(path) as f: |
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125 return yaml.safe_load(f) |
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126 |
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127 |
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128 def nice_config_parser(path): |
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129 parser = NicerConfigParser(path, defaults=__default_properties(path)) |
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130 parser.optionxform = str # Don't lower-case keys |
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131 with open(path) as f: |
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132 parser.read_file(f) |
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133 return parser |
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134 |
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135 |
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136 class NicerConfigParser(ConfigParser): |
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137 |
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138 def __init__(self, filename, *args, **kw): |
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139 ConfigParser.__init__(self, *args, **kw) |
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140 self.filename = filename |
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141 if hasattr(self, '_interpolation'): |
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142 self._interpolation = self.InterpolateWrapper(self._interpolation) |
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143 |
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144 read_file = getattr(ConfigParser, 'read_file', ConfigParser.readfp) |
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145 read_file.__doc__ = "" |
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146 |
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147 def defaults(self): |
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148 """Return the defaults, with their values interpolated (with the |
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149 defaults dict itself) |
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150 |
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151 Mainly to support defaults using values such as %(here)s |
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152 """ |
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153 defaults = ConfigParser.defaults(self).copy() |
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154 for key, val in defaults.items(): |
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155 defaults[key] = self.get('DEFAULT', key) or val |
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156 return defaults |
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157 |
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158 def _interpolate(self, section, option, rawval, vars): |
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159 # Python < 3.2 |
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160 try: |
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161 return ConfigParser._interpolate( |
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162 self, section, option, rawval, vars) |
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163 except Exception: |
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164 e = sys.exc_info()[1] |
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165 args = list(e.args) |
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166 args[0] = f'Error in file {self.filename}: {e}' |
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167 e.args = tuple(args) |
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168 e.message = args[0] |
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169 raise |
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170 |
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171 class InterpolateWrapper: |
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172 # Python >= 3.2 |
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173 def __init__(self, original): |
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174 self._original = original |
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175 |
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176 def __getattr__(self, name): |
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177 return getattr(self._original, name) |
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178 |
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179 def before_get(self, parser, section, option, value, defaults): |
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180 try: |
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181 return self._original.before_get(parser, section, option, |
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182 value, defaults) |
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183 except Exception: |
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184 e = sys.exc_info()[1] |
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185 args = list(e.args) |
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186 args[0] = f'Error in file {parser.filename}: {e}' |
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187 e.args = tuple(args) |
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188 e.message = args[0] |
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189 raise |
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190 |
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191 |
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192 def _running_from_source(): |
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193 paths = ['run.sh', 'lib/galaxy/__init__.py', 'scripts/common_startup.sh'] |
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194 return all(map(os.path.exists, paths)) |
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195 |
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196 |
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197 running_from_source = _running_from_source() |
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198 |
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199 |
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200 def get_data_dir(properties): |
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201 data_dir = properties.get('data_dir', None) |
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202 if data_dir is None: |
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203 if running_from_source: |
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204 data_dir = './database' |
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205 else: |
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206 config_dir = properties.get('config_dir', os.path.dirname(properties['__file__'])) |
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207 data_dir = os.path.join(config_dir, 'data') |
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208 return data_dir |
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209 |
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210 |
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211 def __get_all_configs(dirs, names): |
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212 return list(filter(os.path.exists, starmap(os.path.join, product(dirs, names)))) |
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213 |
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214 |
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215 def __find_config_files(names, exts=None, dirs=None, include_samples=False): |
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216 sample_names = [] |
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217 if isinstance(names, str): |
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218 names = [names] |
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219 if not dirs: |
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220 dirs = [os.getcwd()] |
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221 if exts: |
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222 # add exts to names, converts back into a list because it's going to be small and we might consume names twice |
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223 names = list(starmap(joinext, product(names, exts))) |
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224 if include_samples: |
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225 sample_names = map(partial(joinext, ext='sample'), names) |
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226 # check for all names in each dir before moving to the next dir. could do it the other way around but that makes |
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227 # less sense to me. |
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228 return __get_all_configs(dirs, names) or __get_all_configs(dirs, sample_names) |
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229 |
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230 |
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231 def __default_properties(path): |
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232 return { |
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233 'here': os.path.dirname(os.path.abspath(path)), |
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234 '__file__': os.path.abspath(path) |
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235 } |
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236 |
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237 |
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238 __all__ = ('find_config_file', 'get_data_dir', 'load_app_properties', 'NicerConfigParser', 'running_from_source') |