150 lines
5.5 KiB
Python
150 lines
5.5 KiB
Python
"""distutils.command.check
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Implements the Distutils 'check' command.
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"""
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from distutils.core import Command
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from distutils.errors import DistutilsSetupError
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try:
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# docutils is installed
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from docutils.utils import Reporter
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from docutils.parsers.rst import Parser
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from docutils import frontend
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from docutils import nodes
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from io import StringIO
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class SilentReporter(Reporter):
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def __init__(self, source, report_level, halt_level, stream=None,
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debug=0, encoding='ascii', error_handler='replace'):
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self.messages = []
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Reporter.__init__(self, source, report_level, halt_level, stream,
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debug, encoding, error_handler)
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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 nodes.system_message(message, level=level,
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type=self.levels[level],
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*children, **kwargs)
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HAS_DOCUTILS = True
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except Exception:
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# Catch all exceptions because exceptions besides ImportError probably
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# indicate that docutils is not ported to Py3k.
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HAS_DOCUTILS = False
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class check(Command):
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"""This command checks the meta-data of the package.
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"""
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description = ("perform some checks on the package")
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user_options = [('metadata', 'm', 'Verify meta-data'),
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('restructuredtext', 'r',
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('Checks if long string meta-data syntax '
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'are reStructuredText-compliant')),
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('strict', 's',
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'Will exit with an error if a check fails')]
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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 HAS_DOCUTILS:
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self.check_restructuredtext()
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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, URL
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Recommended fields:
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(author and author_email) or (maintainer and maintainer_email))
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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', 'url'):
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if not (hasattr(metadata, attr) and getattr(metadata, attr)):
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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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if metadata.author:
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if not metadata.author_email:
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self.warn("missing meta-data: if 'author' supplied, " +
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"'author_email' should be supplied too")
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elif metadata.maintainer:
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if not metadata.maintainer_email:
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self.warn("missing meta-data: if 'maintainer' supplied, " +
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"'maintainer_email' should be supplied too")
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else:
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self.warn("missing meta-data: either (author and author_email) " +
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"or (maintainer and maintainer_email) " +
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"should be supplied")
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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 = '%s (line %s)' % (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 = Parser()
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settings = frontend.OptionParser(components=(Parser,)).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(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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document = 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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return reporter.messages
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