74 lines
2.7 KiB
Python
74 lines
2.7 KiB
Python
import argparse
|
|
import math
|
|
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 and version[1] < 100) or (version[1] >= 900 and version[1] < 1000)
|
|
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, upper_bound):
|
|
if not upper_bound:
|
|
upper_bound = [math.inf, math.inf]
|
|
else:
|
|
upper_bound = version_to_list(upper_bound)
|
|
|
|
return lambda version: version_predicate(version, selected) and version_to_list(version) < upper_bound
|
|
|
|
|
|
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")
|
|
parser.add_argument("--upper-bound", dest="upper-bound", help="Only look for versions older than this one (useful for pinning dependencies).")
|
|
|
|
|
|
if __name__ == "__main__":
|
|
args = parser.parse_args()
|
|
|
|
package_name = getattr(args, "package-name")
|
|
requested_release = getattr(args, "requested-release")
|
|
upper_bound = getattr(args, "upper-bound")
|
|
version_predicate = version_policies[getattr(args, "version-policy")]
|
|
version_policy = make_version_policy(version_predicate, requested_release, upper_bound)
|
|
|
|
# The structure of cache.json: https://gitlab.gnome.org/Infrastructure/sysadmin-bin/blob/master/ftpadmin#L762
|
|
cache = json.loads(requests.get(f"https://ftp.gnome.org/pub/GNOME/sources/{package_name}/cache.json").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])
|