152 lines
4.8 KiB
Python
152 lines
4.8 KiB
Python
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"""distutils.command.check
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Implements the Distutils 'check' command.
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"""
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import contextlib
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from distutils.core import Command
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from distutils.errors import DistutilsSetupError
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with contextlib.suppress(ImportError):
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import docutils.utils
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import docutils.parsers.rst
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import docutils.frontend
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import docutils.nodes
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class SilentReporter(docutils.utils.Reporter):
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def __init__(
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self,
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source,
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report_level,
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halt_level,
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stream=None,
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debug=0,
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encoding='ascii',
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error_handler='replace',
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):
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self.messages = []
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super().__init__(
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source, report_level, halt_level, stream, debug, encoding, error_handler
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)
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def system_message(self, level, message, *children, **kwargs):
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self.messages.append((level, message, children, kwargs))
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return docutils.nodes.system_message(
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message, level=level, type=self.levels[level], *children, **kwargs
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)
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class check(Command):
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"""This command checks the meta-data of the package."""
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description = "perform some checks on the package"
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user_options = [
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('metadata', 'm', 'Verify meta-data'),
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(
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'restructuredtext',
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'r',
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(
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'Checks if long string meta-data syntax '
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'are reStructuredText-compliant'
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),
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),
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('strict', 's', 'Will exit with an error if a check fails'),
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]
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boolean_options = ['metadata', 'restructuredtext', 'strict']
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def initialize_options(self):
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"""Sets default values for options."""
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self.restructuredtext = 0
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self.metadata = 1
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self.strict = 0
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self._warnings = 0
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def finalize_options(self):
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pass
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def warn(self, msg):
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"""Counts the number of warnings that occurs."""
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self._warnings += 1
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return Command.warn(self, msg)
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def run(self):
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"""Runs the command."""
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# perform the various tests
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if self.metadata:
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self.check_metadata()
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if self.restructuredtext:
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if 'docutils' in globals():
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try:
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self.check_restructuredtext()
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except TypeError as exc:
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raise DistutilsSetupError(str(exc))
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elif self.strict:
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raise DistutilsSetupError('The docutils package is needed.')
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# let's raise an error in strict mode, if we have at least
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# one warning
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if self.strict and self._warnings > 0:
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raise DistutilsSetupError('Please correct your package.')
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def check_metadata(self):
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"""Ensures that all required elements of meta-data are supplied.
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Required fields:
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name, version
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Warns if any are missing.
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"""
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metadata = self.distribution.metadata
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missing = []
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for attr in 'name', 'version':
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if not getattr(metadata, attr, None):
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missing.append(attr)
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if missing:
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self.warn("missing required meta-data: %s" % ', '.join(missing))
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def check_restructuredtext(self):
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"""Checks if the long string fields are reST-compliant."""
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data = self.distribution.get_long_description()
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for warning in self._check_rst_data(data):
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line = warning[-1].get('line')
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if line is None:
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warning = warning[1]
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else:
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warning = '{} (line {})'.format(warning[1], line)
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self.warn(warning)
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def _check_rst_data(self, data):
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"""Returns warnings when the provided data doesn't compile."""
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# the include and csv_table directives need this to be a path
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source_path = self.distribution.script_name or 'setup.py'
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parser = docutils.parsers.rst.Parser()
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settings = docutils.frontend.OptionParser(
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components=(docutils.parsers.rst.Parser,)
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).get_default_values()
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settings.tab_width = 4
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settings.pep_references = None
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settings.rfc_references = None
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reporter = SilentReporter(
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source_path,
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settings.report_level,
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settings.halt_level,
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stream=settings.warning_stream,
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debug=settings.debug,
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encoding=settings.error_encoding,
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error_handler=settings.error_encoding_error_handler,
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)
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document = docutils.nodes.document(settings, reporter, source=source_path)
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document.note_source(source_path, -1)
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try:
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parser.parse(data, document)
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except AttributeError as e:
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reporter.messages.append(
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(-1, 'Could not finish the parsing: %s.' % e, '', {})
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)
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return reporter.messages
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