JezK
Edit File: check.py
"""distutils.command.check Implements the Distutils 'check' command. """ from distutils.core import Command from distutils.errors import DistutilsSetupError try: # docutils is installed from docutils.utils import Reporter from docutils.parsers.rst import Parser from docutils import frontend from docutils import nodes from io import StringIO class SilentReporter(Reporter): def __init__(self, source, report_level, halt_level, stream=None, debug=0, encoding='ascii', error_handler='replace'): self.messages = [] Reporter.__init__(self, source, report_level, halt_level, stream, debug, encoding, error_handler) def system_message(self, level, message, *children, **kwargs): self.messages.append((level, message, children, kwargs)) return nodes.system_message(message, level=level, type=self.levels[level], *children, **kwargs) HAS_DOCUTILS = True except Exception: # Catch all exceptions because exceptions besides ImportError probably # indicate that docutils is not ported to Py3k. HAS_DOCUTILS = False class check(Command): """This command checks the meta-data of the package. """ description = ("perform some checks on the package") user_options = [('metadata', 'm', 'Verify meta-data'), ('restructuredtext', 'r', ('Checks if long string meta-data syntax ' 'are reStructuredText-compliant')), ('strict', 's', 'Will exit with an error if a check fails')] boolean_options = ['metadata', 'restructuredtext', 'strict'] def initialize_options(self): """Sets default values for options.""" self.restructuredtext = 0 self.metadata = 1 self.strict = 0 self._warnings = 0 def finalize_options(self): pass def warn(self, msg): """Counts the number of warnings that occurs.""" self._warnings += 1 return Command.warn(self, msg) def run(self): """Runs the command.""" # perform the various tests if self.metadata: self.check_metadata() if self.restructuredtext: if HAS_DOCUTILS: self.check_restructuredtext() elif self.strict: raise DistutilsSetupError('The docutils package is needed.') # let's raise an error in strict mode, if we have at least # one warning if self.strict and self._warnings > 0: raise DistutilsSetupError('Please correct your package.') def check_metadata(self): """Ensures that all required elements of meta-data are supplied. name, version, URL, (author and author_email) or (maintainer and maintainer_email)). Warns if any are missing. """ metadata = self.distribution.metadata missing = [] for attr in ('name', 'version', 'url'): if not (hasattr(metadata, attr) and getattr(metadata, attr)): missing.append(attr) if missing: self.warn("missing required meta-data: %s" % ', '.join(missing)) if metadata.author: if not metadata.author_email: self.warn("missing meta-data: if 'author' supplied, " + "'author_email' must be supplied too") elif metadata.maintainer: if not metadata.maintainer_email: self.warn("missing meta-data: if 'maintainer' supplied, " + "'maintainer_email' must be supplied too") else: self.warn("missing meta-data: either (author and author_email) " + "or (maintainer and maintainer_email) " + "must be supplied") def check_restructuredtext(self): """Checks if the long string fields are reST-compliant.""" data = self.distribution.get_long_description() for warning in self._check_rst_data(data): line = warning[-1].get('line') if line is None: warning = warning[1] else: warning = '%s (line %s)' % (warning[1], line) self.warn(warning) def _check_rst_data(self, data): """Returns warnings when the provided data doesn't compile.""" source_path = StringIO() parser = Parser() settings = frontend.OptionParser(components=(Parser,)).get_default_values() settings.tab_width = 4 settings.pep_references = None settings.rfc_references = None reporter = SilentReporter(source_path, settings.report_level, settings.halt_level, stream=settings.warning_stream, debug=settings.debug, encoding=settings.error_encoding, error_handler=settings.error_encoding_error_handler) document = nodes.document(settings, reporter, source=source_path) document.note_source(source_path, -1) try: parser.parse(data, document) except AttributeError as e: reporter.messages.append( (-1, 'Could not finish the parsing: %s.' % e, '', {})) return reporter.messages