Add 9.6 build jobs to build against new 9.6 branch

.gitlab-ci.yml

@@ -10,7 +10,7 @@
 # cabal v2-build builds and preserves their results.
 #
 # The compiler to be tested can be taken from a number of sources. The
-# build-master and build-9.2 jobs form the validation pipeline of the
+# build-master and build-9-* jobs form the validation pipeline of the
 # head.hackage repository. In addition, other GitLab projects (e.g. ghc/ghc>)
 # can trigger a multi-project pipeline, specifying a GHC binary distribution
 # via either the GHC_TARBALL or UPSTREAM_* variables.
@@ -181,6 +181,37 @@ test-9.4:
     BUILD_MODE: TEST
   allow_failure: true
 
+# Build against the 9.6 branch
+.build-9.6:
+  extends: .build
+  before_script:
+    - |
+      if [ -e store.nar ]; then
+        echo "Extracting cached Nix store..."
+        nix-store --import -vv < store.nar || echo "invalid cache"
+      else
+        echo "No cache found"
+      fi
+    - GHC_TARBALL=$(nix run -f ./ci -c discover_tarball.sh)
+  variables:
+    UPSTREAM_BRANCH_NAME: ghc-9.6
+    EXTRA_HC_OPTS: "-dcore-lint"
+  rules:
+    - if: '$UPSTREAM_COMMIT_SHA || $UPSTREAM_PIPELINE_ID'
+      when: never
+    - when: always
+
+build-9.6:
+  extends: .build-9.6
+  variables:
+    BUILD_MODE: FULL
+
+test-9.6:
+  extends: .build-9.6
+  variables:
+    BUILD_MODE: TEST
+  allow_failure: true
+
 .build:
   stage: test
   interruptible: true

ci/config.sh

@@ -83,6 +83,10 @@ case $version in
     #       package                   ticket
     ;;
 
+  9.6.*)
+    #       package                   ticket
+    ;;
+
   9.7.*)
     #       package                   ticket
     broken  what4                     22663