squid: Update squid_dnf_mirrors script to use "libdnf5".

roles/squid/files/squid_dnf_mirrors.py

@@ -1,6 +1,6 @@
 #! /usr/bin/env python3
 """Squid DNF repositories mirrors updater"""
-# Copyright (C) 2021 J.Goutin
+# Copyright (C) 2024 J.Goutin
 #
 # This program is free software: you can redistribute it and/or modify
 # it under the terms of the GNU General Public License as published by
@@ -15,35 +15,46 @@
 # You should have received a copy of the GNU General Public License
 # along with this program.  If not, see <https://www.gnu.org/licenses/>.
 
-__version__ = "1.0.0"
-__copyright__ = "Copyright 2021 J.Goutin"
+__version__ = "2.0.0"
+__copyright__ = "Copyright 2024 J.Goutin"
 
-import dnf
+import libdnf5
 import re
+from os import getenv
 
 _HTTP = re.compile(r"^https?://")
 _is_http = _HTTP.match
 _http_sub = _HTTP.sub
 
 
-def update_dnf_mirrors(store_ids, releasever):
+def update_dnf_mirrors(store_ids: dict[str, str], releasever: str | int | None = None, arch: str | None = None) -> None:
     """
     Updates DNF repositories mirrors list.
 
     Args:
-        store_ids (dict): IDs as key, mirrors URLs as values.
-        releasever (str or int): OS release version.
+        store_ids: IDs as key, mirrors URLs as values.
+        releasever: OS release version.
+        arch: CPU architecture.
     """
     # Update repository information and get mirrors
-    conf = dnf.conf.Conf()
-    conf.releasever = str(releasever)
+    dnf = libdnf5.base.Base()
+    dnf_config = dnf.get_config()
+    dnf_config.plugins = False
+    dnf.load_config()
+    dnf_vars = dnf.get_vars().get()
+    if arch:
+        dnf_vars.set("arch", arch)
+    if releasever:
+        dnf_vars.set("releasever", releasever)
+    dnf.setup()
+
+    dnf_repo_sack = dnf.get_repo_sack()
+    dnf_repo_sack.create_repos_from_reposdir()
+
     repos = {}
-    for repo in dnf.conf.read.RepoReader(conf, {}):
-        try:
-            repo.load()
-        except dnf.exceptions.RepoError:
-            pass
-        mirrors = repo._repo.getMirrors()
+    for repo in []: # TODO: Find how to list "repo" objects
+        mirrors = repo.get_mirrors()
+
         if len(mirrors) <= 2:
             # Skip if only one URL since no need to create StoreID to optimize hit ratio
             continue
@@ -85,12 +96,10 @@ def update_dnf_mirrors(store_ids, releasever):
 if __name__ == "__main__":
     # Get current OS version repository mirrors
     _store_ids = dict()
-    update_dnf_mirrors(
-        _store_ids, dnf.rpm.detect_releasever(dnf.conf.Conf().installroot)
-    )
+    update_dnf_mirrors(_store_ids)
 
     # Write the Squid StoreID file
-    with open("/etc/squid/dnf_mirrors", "wt") as _store_id_file:
+    with open(getenv("STOREID_FILE_PATH", "/etc/squid/dnf_mirrors"), "wt") as _store_id_file:
         for _store_id, _urls in _store_ids.items():
             line = f"^%s(.*)\thttp://{_store_id}.squid.internal/$1\n"
             for _url in sorted(_urls):