copr-builders: allow rpkg-util to build from forks

roles/copr/backend/files/provision/files/patches/rpkg-v3.patch

@@ -0,0 +1,21 @@
+diff --git a/rpkglib/lookaside_cache.py b/rpkglib/lookaside_cache.py
+index 0a38152..a6e3ec2 100644
+--- a/rpkglib/lookaside_cache.py
++++ b/rpkglib/lookaside_cache.py
+@@ -48,10 +48,15 @@ class LookasideCache(object):
+             'hash': hash,
+         }
+         subs.update(kwargs)
++
++        parts = subs["repo_path"].split("/")
++        subs["module"] = parts[-1]
++        subs["ns1"] = parts[-2]
++
+         try:
+             result_url = self.download_url % subs
+         except Exception as e:
+-            raise DownloadError(
++            raise RpkgError(
+                 'Could not get download url from %s template. '
+                 'Original error: %s.' % (self.download_url, str(e)))
+ 

roles/copr/backend/files/provision/provision_builder_tasks.yml

@@ -244,3 +244,9 @@
     mode: 0644
   when:
   - prepare_base_image is not defined
+
+- name: patch from https://pagure.io/rpkg-util/pull-request/38
+  patch: src=patches/rpkg-v3.patch
+         dest=/usr/lib/python3.10/site-packages/rpkglib/lookaside_cache.py
+  when:
+    - prepare_base_image is not defined

roles/copr/backend/templates/provision/copr-rpmbuild/main.ini.j2

@@ -38,6 +38,6 @@ rpm_vendor_copr_name = {{ rpm_vendor_copr_name }}
 
 [distgit0]
 distgit_hostname_pattern = src.fedoraproject.org
-distgit_lookaside_url = https://src.fedoraproject.org/repo/pkgs/%(repo_path)s/%(filename)s/%(hashtype)s/%(hash)s/%(filename)s
+distgit_lookaside_url = https://src.fedoraproject.org/repo/pkgs/%(ns1)s/%(module)s/%(filename)s/%(hashtype)s/%(hash)s/%(filename)s
 distgit_clone_url = https://src.fedoraproject.org/%(repo_path)s
 {% endif %}