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comparison: DebugClients/Python3/coverage/config.py
DebugClients/Python3/coverage/config.py
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- debugger speed
- changeset 5178
- 878ce843ca9f
- parent 5174
- 8c48f5e0cd92
- child 5179
- 5f56410e7624
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| 5174:8c48f5e0cd92 | 5178:878ce843ca9f |
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| 1 # Licensed under the Apache License: http://www.apache.org/licenses/LICENSE-2.0 | |
| 2 # For details: https://bitbucket.org/ned/coveragepy/src/default/NOTICE.txt | |
| 3 | |
| 4 """Config file for coverage.py""" | |
| 5 | |
| 6 import collections | |
| 7 import os | |
| 8 import re | |
| 9 import sys | |
| 10 | |
| 11 from coverage.backward import configparser, iitems, string_class | |
| 12 from coverage.misc import CoverageException, isolate_module | |
| 13 | |
| 14 os = isolate_module(os) | |
| 15 | |
| 16 | |
| 17 class HandyConfigParser(configparser.RawConfigParser): | |
| 18 """Our specialization of ConfigParser.""" | |
| 19 | |
| 20 def __init__(self, section_prefix): | |
| 21 configparser.RawConfigParser.__init__(self) | |
| 22 self.section_prefix = section_prefix | |
| 23 | |
| 24 def read(self, filename): | |
| 25 """Read a file name as UTF-8 configuration data.""" | |
| 26 kwargs = {} | |
| 27 if sys.version_info >= (3, 2): | |
| 28 kwargs['encoding'] = "utf-8" | |
| 29 return configparser.RawConfigParser.read(self, filename, **kwargs) | |
| 30 | |
| 31 def has_option(self, section, option): | |
| 32 section = self.section_prefix + section | |
| 33 return configparser.RawConfigParser.has_option(self, section, option) | |
| 34 | |
| 35 def has_section(self, section): | |
| 36 section = self.section_prefix + section | |
| 37 return configparser.RawConfigParser.has_section(self, section) | |
| 38 | |
| 39 def options(self, section): | |
| 40 section = self.section_prefix + section | |
| 41 return configparser.RawConfigParser.options(self, section) | |
| 42 | |
| 43 def get_section(self, section): | |
| 44 """Get the contents of a section, as a dictionary.""" | |
| 45 d = {} | |
| 46 for opt in self.options(section): | |
| 47 d[opt] = self.get(section, opt) | |
| 48 return d | |
| 49 | |
| 50 def get(self, section, *args, **kwargs): | |
| 51 """Get a value, replacing environment variables also. | |
| 52 | |
| 53 The arguments are the same as `RawConfigParser.get`, but in the found | |
| 54 value, ``$WORD`` or ``${WORD}`` are replaced by the value of the | |
| 55 environment variable ``WORD``. | |
| 56 | |
| 57 Returns the finished value. | |
| 58 | |
| 59 """ | |
| 60 section = self.section_prefix + section | |
| 61 v = configparser.RawConfigParser.get(self, section, *args, **kwargs) | |
| 62 def dollar_replace(m): | |
| 63 """Called for each $replacement.""" | |
| 64 # Only one of the groups will have matched, just get its text. | |
| 65 word = next(w for w in m.groups() if w is not None) # pragma: part covered | |
| 66 if word == "$": | |
| 67 return "$" | |
| 68 else: | |
| 69 return os.environ.get(word, '') | |
| 70 | |
| 71 dollar_pattern = r"""(?x) # Use extended regex syntax | |
| 72 \$(?: # A dollar sign, then | |
| 73 (?P<v1>\w+) | # a plain word, | |
| 74 {(?P<v2>\w+)} | # or a {-wrapped word, | |
| 75 (?P<char>[$]) # or a dollar sign. | |
| 76 ) | |
| 77 """ | |
| 78 v = re.sub(dollar_pattern, dollar_replace, v) | |
| 79 return v | |
| 80 | |
| 81 def getlist(self, section, option): | |
| 82 """Read a list of strings. | |
| 83 | |
| 84 The value of `section` and `option` is treated as a comma- and newline- | |
| 85 separated list of strings. Each value is stripped of whitespace. | |
| 86 | |
| 87 Returns the list of strings. | |
| 88 | |
| 89 """ | |
| 90 value_list = self.get(section, option) | |
| 91 values = [] | |
| 92 for value_line in value_list.split('\n'): | |
| 93 for value in value_line.split(','): | |
| 94 value = value.strip() | |
| 95 if value: | |
| 96 values.append(value) | |
| 97 return values | |
| 98 | |
| 99 def getregexlist(self, section, option): | |
| 100 """Read a list of full-line regexes. | |
| 101 | |
| 102 The value of `section` and `option` is treated as a newline-separated | |
| 103 list of regexes. Each value is stripped of whitespace. | |
| 104 | |
| 105 Returns the list of strings. | |
| 106 | |
| 107 """ | |
| 108 line_list = self.get(section, option) | |
| 109 value_list = [] | |
| 110 for value in line_list.splitlines(): | |
| 111 value = value.strip() | |
| 112 try: | |
| 113 re.compile(value) | |
| 114 except re.error as e: | |
| 115 raise CoverageException( | |
| 116 "Invalid [%s].%s value %r: %s" % (section, option, value, e) | |
| 117 ) | |
| 118 if value: | |
| 119 value_list.append(value) | |
| 120 return value_list | |
| 121 | |
| 122 | |
| 123 # The default line exclusion regexes. | |
| 124 DEFAULT_EXCLUDE = [ | |
| 125 r'(?i)#\s*pragma[:\s]?\s*no\s*cover', | |
| 126 ] | |
| 127 | |
| 128 # The default partial branch regexes, to be modified by the user. | |
| 129 DEFAULT_PARTIAL = [ | |
| 130 r'(?i)#\s*pragma[:\s]?\s*no\s*branch', | |
| 131 ] | |
| 132 | |
| 133 # The default partial branch regexes, based on Python semantics. | |
| 134 # These are any Python branching constructs that can't actually execute all | |
| 135 # their branches. | |
| 136 DEFAULT_PARTIAL_ALWAYS = [ | |
| 137 'while (True|1|False|0):', | |
| 138 'if (True|1|False|0):', | |
| 139 ] | |
| 140 | |
| 141 | |
| 142 class CoverageConfig(object): | |
| 143 """Coverage.py configuration. | |
| 144 | |
| 145 The attributes of this class are the various settings that control the | |
| 146 operation of coverage.py. | |
| 147 | |
| 148 """ | |
| 149 def __init__(self): | |
| 150 """Initialize the configuration attributes to their defaults.""" | |
| 151 # Metadata about the config. | |
| 152 self.attempted_config_files = [] | |
| 153 self.config_files = [] | |
| 154 | |
| 155 # Defaults for [run] | |
| 156 self.branch = False | |
| 157 self.concurrency = None | |
| 158 self.cover_pylib = False | |
| 159 self.data_file = ".coverage" | |
| 160 self.debug = [] | |
| 161 self.note = None | |
| 162 self.parallel = False | |
| 163 self.plugins = [] | |
| 164 self.source = None | |
| 165 self.timid = False | |
| 166 | |
| 167 # Defaults for [report] | |
| 168 self.exclude_list = DEFAULT_EXCLUDE[:] | |
| 169 self.fail_under = 0 | |
| 170 self.ignore_errors = False | |
| 171 self.include = None | |
| 172 self.omit = None | |
| 173 self.partial_always_list = DEFAULT_PARTIAL_ALWAYS[:] | |
| 174 self.partial_list = DEFAULT_PARTIAL[:] | |
| 175 self.precision = 0 | |
| 176 self.show_missing = False | |
| 177 self.skip_covered = False | |
| 178 | |
| 179 # Defaults for [html] | |
| 180 self.extra_css = None | |
| 181 self.html_dir = "htmlcov" | |
| 182 self.html_title = "Coverage report" | |
| 183 | |
| 184 # Defaults for [xml] | |
| 185 self.xml_output = "coverage.xml" | |
| 186 self.xml_package_depth = 99 | |
| 187 | |
| 188 # Defaults for [paths] | |
| 189 self.paths = {} | |
| 190 | |
| 191 # Options for plugins | |
| 192 self.plugin_options = {} | |
| 193 | |
| 194 MUST_BE_LIST = ["omit", "include", "debug", "plugins"] | |
| 195 | |
| 196 def from_args(self, **kwargs): | |
| 197 """Read config values from `kwargs`.""" | |
| 198 for k, v in iitems(kwargs): | |
| 199 if v is not None: | |
| 200 if k in self.MUST_BE_LIST and isinstance(v, string_class): | |
| 201 v = [v] | |
| 202 setattr(self, k, v) | |
| 203 | |
| 204 def from_file(self, filename, section_prefix=""): | |
| 205 """Read configuration from a .rc file. | |
| 206 | |
| 207 `filename` is a file name to read. | |
| 208 | |
| 209 Returns True or False, whether the file could be read. | |
| 210 | |
| 211 """ | |
| 212 self.attempted_config_files.append(filename) | |
| 213 | |
| 214 cp = HandyConfigParser(section_prefix) | |
| 215 try: | |
| 216 files_read = cp.read(filename) | |
| 217 except configparser.Error as err: | |
| 218 raise CoverageException("Couldn't read config file %s: %s" % (filename, err)) | |
| 219 if not files_read: | |
| 220 return False | |
| 221 | |
| 222 self.config_files.extend(files_read) | |
| 223 | |
| 224 try: | |
| 225 for option_spec in self.CONFIG_FILE_OPTIONS: | |
| 226 self._set_attr_from_config_option(cp, *option_spec) | |
| 227 except ValueError as err: | |
| 228 raise CoverageException("Couldn't read config file %s: %s" % (filename, err)) | |
| 229 | |
| 230 # Check that there are no unrecognized options. | |
| 231 all_options = collections.defaultdict(set) | |
| 232 for option_spec in self.CONFIG_FILE_OPTIONS: | |
| 233 section, option = option_spec[1].split(":") | |
| 234 all_options[section].add(option) | |
| 235 | |
| 236 for section, options in iitems(all_options): | |
| 237 if cp.has_section(section): | |
| 238 for unknown in set(cp.options(section)) - options: | |
| 239 if section_prefix: | |
| 240 section = section_prefix + section | |
| 241 raise CoverageException( | |
| 242 "Unrecognized option '[%s] %s=' in config file %s" % ( | |
| 243 section, unknown, filename | |
| 244 ) | |
| 245 ) | |
| 246 | |
| 247 # [paths] is special | |
| 248 if cp.has_section('paths'): | |
| 249 for option in cp.options('paths'): | |
| 250 self.paths[option] = cp.getlist('paths', option) | |
| 251 | |
| 252 # plugins can have options | |
| 253 for plugin in self.plugins: | |
| 254 if cp.has_section(plugin): | |
| 255 self.plugin_options[plugin] = cp.get_section(plugin) | |
| 256 | |
| 257 return True | |
| 258 | |
| 259 CONFIG_FILE_OPTIONS = [ | |
| 260 # These are *args for _set_attr_from_config_option: | |
| 261 # (attr, where, type_="") | |
| 262 # | |
| 263 # attr is the attribute to set on the CoverageConfig object. | |
| 264 # where is the section:name to read from the configuration file. | |
| 265 # type_ is the optional type to apply, by using .getTYPE to read the | |
| 266 # configuration value from the file. | |
| 267 | |
| 268 # [run] | |
| 269 ('branch', 'run:branch', 'boolean'), | |
| 270 ('concurrency', 'run:concurrency'), | |
| 271 ('cover_pylib', 'run:cover_pylib', 'boolean'), | |
| 272 ('data_file', 'run:data_file'), | |
| 273 ('debug', 'run:debug', 'list'), | |
| 274 ('include', 'run:include', 'list'), | |
| 275 ('note', 'run:note'), | |
| 276 ('omit', 'run:omit', 'list'), | |
| 277 ('parallel', 'run:parallel', 'boolean'), | |
| 278 ('plugins', 'run:plugins', 'list'), | |
| 279 ('source', 'run:source', 'list'), | |
| 280 ('timid', 'run:timid', 'boolean'), | |
| 281 | |
| 282 # [report] | |
| 283 ('exclude_list', 'report:exclude_lines', 'regexlist'), | |
| 284 ('fail_under', 'report:fail_under', 'int'), | |
| 285 ('ignore_errors', 'report:ignore_errors', 'boolean'), | |
| 286 ('include', 'report:include', 'list'), | |
| 287 ('omit', 'report:omit', 'list'), | |
| 288 ('partial_always_list', 'report:partial_branches_always', 'regexlist'), | |
| 289 ('partial_list', 'report:partial_branches', 'regexlist'), | |
| 290 ('precision', 'report:precision', 'int'), | |
| 291 ('show_missing', 'report:show_missing', 'boolean'), | |
| 292 ('skip_covered', 'report:skip_covered', 'boolean'), | |
| 293 | |
| 294 # [html] | |
| 295 ('extra_css', 'html:extra_css'), | |
| 296 ('html_dir', 'html:directory'), | |
| 297 ('html_title', 'html:title'), | |
| 298 | |
| 299 # [xml] | |
| 300 ('xml_output', 'xml:output'), | |
| 301 ('xml_package_depth', 'xml:package_depth', 'int'), | |
| 302 ] | |
| 303 | |
| 304 def _set_attr_from_config_option(self, cp, attr, where, type_=''): | |
| 305 """Set an attribute on self if it exists in the ConfigParser.""" | |
| 306 section, option = where.split(":") | |
| 307 if cp.has_option(section, option): | |
| 308 method = getattr(cp, 'get' + type_) | |
| 309 setattr(self, attr, method(section, option)) | |
| 310 | |
| 311 def get_plugin_options(self, plugin): | |
| 312 """Get a dictionary of options for the plugin named `plugin`.""" | |
| 313 return self.plugin_options.get(plugin, {}) | |
| 314 | |
| 315 def set_option(self, option_name, value): | |
| 316 """Set an option in the configuration. | |
| 317 | |
| 318 `option_name` is a colon-separated string indicating the section and | |
| 319 option name. For example, the ``branch`` option in the ``[run]`` | |
| 320 section of the config file would be indicated with `"run:branch"`. | |
| 321 | |
| 322 `value` is the new value for the option. | |
| 323 | |
| 324 """ | |
| 325 | |
| 326 # Check all the hard-coded options. | |
| 327 for option_spec in self.CONFIG_FILE_OPTIONS: | |
| 328 attr, where = option_spec[:2] | |
| 329 if where == option_name: | |
| 330 setattr(self, attr, value) | |
| 331 return | |
| 332 | |
| 333 # See if it's a plugin option. | |
| 334 plugin_name, _, key = option_name.partition(":") | |
| 335 if key and plugin_name in self.plugins: | |
| 336 self.plugin_options.setdefault(plugin_name, {})[key] = value | |
| 337 return | |
| 338 | |
| 339 # If we get here, we didn't find the option. | |
| 340 raise CoverageException("No such option: %r" % option_name) | |
| 341 | |
| 342 def get_option(self, option_name): | |
| 343 """Get an option from the configuration. | |
| 344 | |
| 345 `option_name` is a colon-separated string indicating the section and | |
| 346 option name. For example, the ``branch`` option in the ``[run]`` | |
| 347 section of the config file would be indicated with `"run:branch"`. | |
| 348 | |
| 349 Returns the value of the option. | |
| 350 | |
| 351 """ | |
| 352 | |
| 353 # Check all the hard-coded options. | |
| 354 for option_spec in self.CONFIG_FILE_OPTIONS: | |
| 355 attr, where = option_spec[:2] | |
| 356 if where == option_name: | |
| 357 return getattr(self, attr) | |
| 358 | |
| 359 # See if it's a plugin option. | |
| 360 plugin_name, _, key = option_name.partition(":") | |
| 361 if key and plugin_name in self.plugins: | |
| 362 return self.plugin_options.get(plugin_name, {}).get(key) | |
| 363 | |
| 364 # If we get here, we didn't find the option. | |
| 365 raise CoverageException("No such option: %r" % option_name) |
