Merge ~cjwatson/launchpad:db-more-relative-build-scores into launchpad:db-devel

[Colin Watson]

Add relative_build_score to CharmRecipe/GitRepository/Snap

We've had a request to be able to control build scores for snap recipes, and we might as well give ourselves some more control over a couple of other build types while we're at it.

[William Grant (wgrant)]

review: Approve (db)

diff --git a/database/schema/patch-2211-16-0.sql b/database/schema/patch-2211-16-0.sql
 new file mode 100644
index 0000000..86ad4b3
--- /dev/null
+++ b/database/schema/patch-2211-16-0.sql
@@ -0,0 +1,14 @@
+-- Copyright 2023 Canonical Ltd.  This software is licensed under the
+-- GNU Affero General Public License version 3 (see the file LICENSE).
+
+SET client_min_messages=ERROR;
+
+ALTER TABLE CharmRecipe ADD COLUMN relative_build_score integer;
+ALTER TABLE GitRepository ADD COLUMN relative_build_score integer;
+ALTER TABLE Snap ADD COLUMN relative_build_score integer;
+
+COMMENT ON COLUMN CharmRecipe.relative_build_score IS 'A delta to the build score that is applied to all builds of this charm recipe.';
+COMMENT ON COLUMN GitRepository.relative_build_score IS 'A delta to the build score that is applied to all builds of this Git repository.';
+COMMENT ON COLUMN Snap.relative_build_score IS 'A delta to the build score that is applied to all builds of this snap recipe.';
+
+INSERT INTO LaunchpadDatabaseRevision VALUES (2211, 16, 0);