bintree: fix UnboundLocalError for url when using cached index

Bug: https://bugs.gentoo.org/965453
Signed-off-by: Zac Medico <[email protected]>

Author: zmedico

lib/portage/dbapi/bintree.py

@@ -1377,6 +1377,7 @@ def _populate_remote(self, getbinpkg_refresh=True, pretend=False, verbose=False)
         for repo in reversed(list(self._binrepos_conf.values())):
             binrepo_name = repo.name or repo.name_fallback
             base_url = repo.sync_uri
+            pkgindex_uri = base_url.rstrip("/") + "/Packages"
             parsed_url = urlparse(base_url)
             host = parsed_url.hostname or ""
             port = parsed_url.port
@@ -1755,7 +1756,7 @@ def _populate_remote(self, getbinpkg_refresh=True, pretend=False, verbose=False)
 
                     d["CPV"] = cpv
                     d["BASE_URI"] = remote_base_uri
-                    d["PKGINDEX_URI"] = url
+                    d["PKGINDEX_URI"] = pkgindex_uri
                     # FETCHCOMMAND and RESUMECOMMAND may be specified
                     # by binrepos.conf, and otherwise ensure that they
                     # do not propagate from the Packages index since