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releases.py
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releases.py
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# -*- coding: utf-8 -*-
# LICENCE: This program is free software: you can redistribute it and/or modify
# it under the terms of the GNU Affero General Public License as published by
# the Free Software Foundation, either version 3 of the License, or
# (at your option) any later version.
#
# This program is distributed in the hope that it will be useful,
# but WITHOUT ANY WARRANTY; without even the implied warranty of
# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
# GNU Affero General Public License for more details.
#
# You should have received a copy of the GNU Affero General Public License
# along with this program. If not, see <http://www.gnu.org/licenses/>.
from pathlib import Path
import logging
import re
from django.conf import settings
from packaging.version import parse as parse_version
RELEASE_TYPE_SOURCE_GZIP = 'source_gzip_version'
RELEASE_TYPE_SOURCE_BZIP2 = 'source_bzip2_version'
RELEASE_TYPE_WINDOWS = 'windows_version'
RELEASE_TYPE_MACOS = 'macos_version'
RELEASE_TYPES = {
settings.LATEST_VERSION_RELEASES_DIRECTORY: {
RELEASE_TYPE_SOURCE_GZIP: {
'pattern': re.compile(r'^geany-([0-9\.\-]+).tar.gz$'),
'fallback_filename': 'geany-{version}.tar.gz'
},
RELEASE_TYPE_SOURCE_BZIP2: {
'pattern': re.compile(r'^geany-([0-9\.\-]+).tar.bz2$'),
'fallback_filename': 'geany-{version}.tar.bz2'
},
RELEASE_TYPE_WINDOWS: {
'pattern': re.compile(r'^geany-([0-9\.\-]+)_setup(-[0-9]+)?.exe$'),
'fallback_filename': 'geany-{version}_setup.exe'
},
RELEASE_TYPE_MACOS: {
'pattern': re.compile(r'^geany-([0-9\.\-]+)_osx(-[0-9]+)?.dmg$'),
'fallback_filename': 'geany-{version}_osx.dmg'
},
},
settings.LATEST_VERSION_PLUGINS_RELEASES_DIRECTORY: {
RELEASE_TYPE_SOURCE_GZIP: {
'pattern': re.compile(r'^geany-plugins-([0-9\.\-]+).tar.gz$'),
'fallback_filename': 'geany-plugins-{version}.tar.gz'
},
RELEASE_TYPE_SOURCE_BZIP2: {
'pattern': re.compile(r'^geany-plugins-([0-9\.\-]+).tar.bz2$'),
'fallback_filename': 'geany-plugins-{version}.tar.bz2'
},
RELEASE_TYPE_WINDOWS: {
'pattern': re.compile(r'^geany-plugins-([0-9\.\-]+)_setup(-[0-9]+)?.exe$'),
'fallback_filename': 'geany-plugins-{version}_setup.exe'
},
},
}
logger = logging.getLogger(__name__) # pylint: disable=invalid-name
class ReleaseVersions:
source_gzip_version = None
source_bzip2_version = None
windows_version = None
macos_version = None
class ReleaseVersionsProvider:
# ----------------------------------------------------------------------
def __init__(self, releases_directory, fallback_version):
self._releases_directory = releases_directory
self._fallback_version = fallback_version
self._release_files = None
self._release_files_by_version = None
self._release_versions = None
# ----------------------------------------------------------------------
def provide(self):
self._fetch_releases_from_filesystem()
self._group_releases_by_type()
self._factor_release_versions()
return self._release_versions
# ----------------------------------------------------------------------
def _fetch_releases_from_filesystem(self):
self._release_files = list()
if not self._releases_directory:
return
path = Path(self._releases_directory)
if not path.exists():
return
for entry in path.iterdir():
relative_entry = entry.relative_to(self._releases_directory)
filename = relative_entry.as_posix()
self._release_files.append(filename)
# ----------------------------------------------------------------------
def _group_releases_by_type(self):
self._release_files_by_version = dict()
release_types = self._get_release_types()
for release_type in release_types:
self._release_files_by_version[release_type] = list()
for filename in self._release_files:
for release_type in release_types:
if release_types[release_type]['pattern'].match(filename):
self._release_files_by_version[release_type].append(filename)
break
# ----------------------------------------------------------------------
def _get_release_types(self):
return RELEASE_TYPES.get(self._releases_directory, dict())
# ----------------------------------------------------------------------
def _factor_release_versions(self):
self._release_versions = ReleaseVersions()
for release_type in self._release_files_by_version:
latest_version = self._determine_latest_version(release_type)
setattr(self._release_versions, release_type, latest_version)
# ----------------------------------------------------------------------
def _determine_latest_version(self, release_type):
versions = self._release_files_by_version[release_type]
sorted_versions = sorted(versions, key=parse_version)
release_types = self._get_release_types()
try:
latest_version = sorted_versions.pop()
logger.debug(
'Latest version found for "{}": {}'.format(release_type, latest_version))
except IndexError:
fallback_filename = release_types[release_type]['fallback_filename']
latest_version = fallback_filename.format(version=self._fallback_version)
logger.debug(
'Latest version found for "{}": {} (fallback)'.format(
release_type,
latest_version))
return latest_version