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Diffstat (limited to 'pkg/osx/daemon/_metadata.py')
-rw-r--r-- | pkg/osx/daemon/_metadata.py | 154 |
1 files changed, 154 insertions, 0 deletions
diff --git a/pkg/osx/daemon/_metadata.py b/pkg/osx/daemon/_metadata.py new file mode 100644 index 00000000..88843df7 --- /dev/null +++ b/pkg/osx/daemon/_metadata.py @@ -0,0 +1,154 @@ +# -*- coding: utf-8 -*- + +# daemon/_metadata.py +# Part of ‘python-daemon’, an implementation of PEP 3143. +# +# Copyright © 2008–2015 Ben Finney <ben+python@benfinney.id.au> +# +# This is free software: you may copy, modify, and/or distribute this work +# under the terms of the Apache License, version 2.0 as published by the +# Apache Software Foundation. +# No warranty expressed or implied. See the file ‘LICENSE.ASF-2’ for details. + +""" Package metadata for the ‘python-daemon’ distribution. """ + +from __future__ import (absolute_import, unicode_literals) + +import json +import re +import collections +import datetime + +import pkg_resources + + +distribution_name = "python-daemon" +version_info_filename = "version_info.json" + + +def get_distribution_version_info(filename=version_info_filename): + """ Get the version info from the installed distribution. + + :param filename: Base filename of the version info resource. + :return: The version info as a mapping of fields. If the + distribution is not available, the mapping is empty. + + The version info is stored as a metadata file in the + distribution. + + """ + version_info = { + 'release_date': "UNKNOWN", + 'version': "UNKNOWN", + 'maintainer': "UNKNOWN", + } + + try: + distribution = pkg_resources.get_distribution(distribution_name) + except pkg_resources.DistributionNotFound: + distribution = None + + if distribution is not None: + if distribution.has_metadata(version_info_filename): + content = distribution.get_metadata(version_info_filename) + version_info = json.loads(content) + + return version_info + +version_info = get_distribution_version_info() + +version_installed = version_info['version'] + + +rfc822_person_regex = re.compile( + "^(?P<name>[^<]+) <(?P<email>[^>]+)>$") + +ParsedPerson = collections.namedtuple('ParsedPerson', ['name', 'email']) + + +def parse_person_field(value): + """ Parse a person field into name and email address. + + :param value: The text value specifying a person. + :return: A 2-tuple (name, email) for the person's details. + + If the `value` does not match a standard person with email + address, the `email` item is ``None``. + + """ + result = (None, None) + + match = rfc822_person_regex.match(value) + if len(value): + if match is not None: + result = ParsedPerson( + name=match.group('name'), + email=match.group('email')) + else: + result = ParsedPerson(name=value, email=None) + + return result + +author_name = "Ben Finney" +author_email = "ben+python@benfinney.id.au" +author = "{name} <{email}>".format(name=author_name, email=author_email) + + +class YearRange: + """ A range of years spanning a period. """ + + def __init__(self, begin, end=None): + self.begin = begin + self.end = end + + def __unicode__(self): + text = "{range.begin:04d}".format(range=self) + if self.end is not None: + if self.end > self.begin: + text = "{range.begin:04d}–{range.end:04d}".format(range=self) + return text + + __str__ = __unicode__ + + +def make_year_range(begin_year, end_date=None): + """ Construct the year range given a start and possible end date. + + :param begin_date: The beginning year (text) for the range. + :param end_date: The end date (text, ISO-8601 format) for the + range, or a non-date token string. + :return: The range of years as a `YearRange` instance. + + If the `end_date` is not a valid ISO-8601 date string, the + range has ``None`` for the end year. + + """ + begin_year = int(begin_year) + + try: + end_date = datetime.datetime.strptime(end_date, "%Y-%m-%d") + except (TypeError, ValueError): + # Specified end_date value is not a valid date. + end_year = None + else: + end_year = end_date.year + + year_range = YearRange(begin=begin_year, end=end_year) + + return year_range + +copyright_year_begin = "2001" +build_date = version_info['release_date'] +copyright_year_range = make_year_range(copyright_year_begin, build_date) + +copyright = "Copyright © {year_range} {author} and others".format( + year_range=copyright_year_range, author=author) +license = "Apache-2" +url = "https://alioth.debian.org/projects/python-daemon/" + + +# Local variables: +# coding: utf-8 +# mode: python +# End: +# vim: fileencoding=utf-8 filetype=python : |