mirror of
https://github.com/NixOS/nixpkgs.git
synced 2024-11-23 06:01:15 +00:00
61 lines
2.3 KiB
Python
61 lines
2.3 KiB
Python
import argparse
|
|
import json
|
|
import requests
|
|
import sys
|
|
|
|
def version_to_list(version):
|
|
return list(map(int, version.split('.')))
|
|
|
|
def odd_unstable(version_str, selected):
|
|
version = version_to_list(version_str)
|
|
if len(version) < 2:
|
|
return True
|
|
|
|
even = version[1] % 2 == 0
|
|
prerelease = version[1] >= 90
|
|
stable = even and not prerelease
|
|
if selected == 'stable':
|
|
return stable
|
|
else:
|
|
return True
|
|
|
|
def no_policy(version, selected):
|
|
return True
|
|
|
|
version_policies = {
|
|
'odd-unstable': odd_unstable,
|
|
'none': no_policy,
|
|
}
|
|
|
|
def make_version_policy(version_predicate, selected):
|
|
return lambda version: version_predicate(version, selected)
|
|
|
|
parser = argparse.ArgumentParser(description='Find latest version for a GNOME package by crawling their release server.')
|
|
parser.add_argument('package-name', help='Name of the directory in https://ftp.gnome.org/pub/GNOME/sources/ containing the package.')
|
|
parser.add_argument('version-policy', help='Policy determining which versions are considered stable. For most GNOME packages, odd minor versions are unstable but there are exceptions.', choices=version_policies.keys(), nargs='?', default='odd-unstable')
|
|
parser.add_argument('requested-release', help='Most of the time, we will want to update to stable version but sometimes it is useful to test.', choices=['stable', 'unstable'], nargs='?', default='stable')
|
|
|
|
|
|
if __name__ == '__main__':
|
|
args = parser.parse_args()
|
|
|
|
package_name = getattr(args, 'package-name')
|
|
requested_release = getattr(args, 'requested-release')
|
|
version_predicate = version_policies[getattr(args, 'version-policy')]
|
|
version_policy = make_version_policy(version_predicate, requested_release)
|
|
|
|
# The structure of cache.json: https://gitlab.gnome.org/Infrastructure/sysadmin-bin/blob/master/ftpadmin#L762
|
|
cache = json.loads(requests.get('https://ftp.gnome.org/pub/GNOME/sources/{}/cache.json'.format(package_name)).text)
|
|
if type(cache) != list or cache[0] != 4:
|
|
print('Unknown format of cache.json file.', file=sys.stderr)
|
|
sys.exit(1)
|
|
|
|
versions = cache[2][package_name]
|
|
versions = sorted(filter(version_policy, versions), key=version_to_list)
|
|
|
|
if len(versions) == 0:
|
|
print('No versions matched.', file=sys.stderr)
|
|
sys.exit(1)
|
|
|
|
print(versions[-1])
|