Clean up the shared-state-cache

Allows cleaning share state cache by declaring CI_ONIRO_CLEAN_SSTATE variable, manually, via a schedule pipeline or globally.

Related to: eclipse-wg/oniro-wg/products-services-oniro-wg/it-services-oniro-wg/pipelines-architecture-oniro-wg#58 (closed)

Signed-off-by: sebastien.heurtematte sebastien.heurtematte@eclipse-foundation.org

.oniro-ci/build-generic.yaml

@@ -464,3 +464,20 @@
   artifacts:
     paths:
       - $ARTIFACTS_DIR
+
+clean_sstate:
+  extends: .bitbake-workspace
+  stage: clean
+  variables: 
+    CI_ONIRO_BUILD_FLAVOUR: "bypass precondition"
+    MACHINE: "bypass precondition"
+  script:
+    - SCRATCH_DIR="$(cat "$CI_PROJECT_DIR"/.scratch-dir-name)"
+    - cd "$SCRATCH_DIR"
+    - df -h ${CI_ONIRO_RUNNER_PERSISTENT_STORAGE}
+    - time ${SCRATCH_DIR}/oe-core/scripts/sstate-cache-management.sh --remove-duplicated -d --cache-dir=${CI_ONIRO_BB_LOCAL_CONF_SSTATE_DIR} -y
+    - df -h ${CI_ONIRO_RUNNER_PERSISTENT_STORAGE}
+  rules:
+      - if: '$CI_ONIRO_CLEAN_SSTATE'
+        when: always
+  allow_failure: true
\ No newline at end of file