From ec4134919e76e9ea5fe8eea453b295809087bc8c Mon Sep 17 00:00:00 2001
From: Lenka Segura <lsegura@redhat.com>
Date: Dec 04 2023 22:24:12 +0000
Subject: Remove pdc queries for active branches


Signed-off-by: Lenka Segura <lsegura@redhat.com>

---

diff --git a/dist_git_auth.py b/dist_git_auth.py
index d17c08d..f2d699b 100644
--- a/dist_git_auth.py
+++ b/dist_git_auth.py
@@ -74,15 +74,16 @@ class DistGitAuth(GitAuthHelper):
             "ACL_PROTECTED_NAMESPACES", ["rpms"]
         )
 
-        self.pdc_url = pagure_config.get("PDC_URL")
+        self.distgit_url = pagure_config.get("APP_URL")
 
     def is_supported_branch(self, project, refname):
         """Returns whether a specific branch is currently supported for Fedora
 
-        This retrieves the information about EOL status from PDC, to prevent
+        This retrieves the information from src.fedoraproject.org/lookaside, where
+        json files with retired packages on active branches are listed, to prevent
         EOL branches being pushed to.
         """
-        if not self.pdc_url:
+        if not self.distgit_url:
             # No way to confirm this is a supported branch, not supported
             return None
         if not refname.startswith("refs/heads/"):
@@ -90,29 +91,17 @@ class DistGitAuth(GitAuthHelper):
             return None
         refname = refname[len("refs/heads/") :]
 
-        namespace2pdctype = {
-            "rpms": "rpm",
-            "modules": "module",
-            "container": "container",
-        }
         name = urllib.parse.quote(project.name)
-        resp = requests.get(
-            f"{self.pdc_url}component-branches/?global_component={name}"
-            f"&name={refname}&type={namespace2pdctype[project.namespace]}&fields=active"
-        )
+        # gets retired packages on branches currently supported by Fedora`
+        resp = requests.get(f"{self.distgit_url}/lookaside/retired_in_{refname}.json")
 
-        res = []
-        if resp.ok:
-            res = resp.json().get("results")
+        # the branch is not supported
+        if resp.status_code == 404:
+            return False
 
-        if len(res) == 0:
-            # No status
-            return None
-        if len(res) != 1:
-            # PDC couldn't make up its mind....
-            # Should never happen, but just in case...
-            raise ValueError("PDC was unable to make up its mind")
-        return res[0]["active"]
+        # False: retired package on currently active branch
+        # True: active package on active branch
+        return name not in resp
 
     def info(self, msg):
         """Function to print information.
@@ -247,7 +236,10 @@ class DistGitAuth(GitAuthHelper):
                 pdc_ref = branch_overrides[project.namespace][refname]
             is_supported = self.is_supported_branch(project, pdc_ref)
             if is_supported is False:
-                self.info("Branch %s is unsupported. Cannot push to a disabled branch (maybe eol?)." % refname)
+                self.info(
+                    "Branch %s is unsupported. Cannot push to a disabled branch (maybe eol?)."
+                    % refname
+                )
                 return False
             elif is_supported is True:
                 self.debug("Branch %s is supported" % refname)