automation: fix eclair gitlab jobs for merge requests

The "eclair" script calls action_push.sh even for merge request, while
instead action_pull_request.sh should be called, resulting in a job
failure with this error:

Unexpected event pull_request

Fix the script to call action_pull_request.sh appropriately.

Signed-off-by: Stefano Stabellini <stefano.stabellini@amd.com>
Reviewed-by: Simone Ballarin <simone.ballarin@bugseng.com>

automation/eclair_analysis/ECLAIR/action_pull_request.sh

@@ -3,7 +3,7 @@
 set -eu
 
 usage() {
-    echo "Usage: $0 WTOKEN ANALYSIS_OUTPUT_DIR COMMIT_ID" >&2
+    echo "Usage: $0 WTOKEN ANALYSIS_OUTPUT_DIR" >&2
     exit 2
 }
 

automation/scripts/eclair

@@ -21,5 +21,16 @@ ex=0
 # Fail in case of new reports for clean guidelines
 "${ECLAIR_DIR}/action_check_clean_regressions.sh" "${ECLAIR_OUTPUT_DIR}" || ex=$?
 
-"${ECLAIR_DIR}/action_push.sh" "${WTOKEN}" "${ECLAIR_OUTPUT_DIR}"
+case "${CI_PIPELINE_SOURCE}" in
+merge_request_event)
+    "${ECLAIR_DIR}/action_pull_request.sh" "${WTOKEN}" "${ECLAIR_OUTPUT_DIR}"
+    ;;
+push | pipeline | web | schedule)
+    "${ECLAIR_DIR}/action_push.sh" "${WTOKEN}" "${ECLAIR_OUTPUT_DIR}"
+    ;;
+*)
+    echo "Unexpected event ${CI_PIPELINE_SOURCE}" >&2
+    ex=1
+    ;;
+esac
 [ "${ex}" = 0 ] || exit "${ex}"