gitlab-ci: handle the run-time tests conditions in script

Note that we do not propagate the existing comment, because it is
partially wrong; instead we just keep the per-condition comments.

Signed-off-by: Yann E. MORIN <yann.morin.1998@free.fr>
Cc: Romain Naour <romain.naour@gmail.com>
Cc: Thomas Petazzoni <thomas.petazzoni@bootlin.com>
Cc: Arnout Vandecappelle <arnout@mind.be>
Reviewed-by: Romain Naour <romain.naour@gmail.com>
Signed-off-by: Yann E. MORIN <yann.morin.1998@free.fr>

support/scripts/generate-gitlab-ci-yml

@@ -8,10 +8,7 @@ main() {
     preamble "${template}"
 
     gen_defconfigs
-
-    ./support/testing/run-tests -l 2>&1 \
-    | sed -r -e '/^test_run \((.*)\).*/!d; s//\1: { extends: .runtime_test }/' \
-    | LC_ALL=C sort
+    gen_tests
 }
 
 preamble() {
@@ -55,4 +52,32 @@ gen_defconfigs() {
     done
 }
 
+gen_tests() {
+    local -a tests
+    local run_tests tst
+
+    tests=( $(./support/testing/run-tests -l 2>&1 \
+              | sed -r -e '/^test_run \((.*)\).*/!d; s//\1/'\
+              | LC_ALL=C sort)
+          )
+
+    run_tests=false
+    if [ -n "${CI_COMMIT_TAG}" ]; then
+        # For tags, create a pipeline.
+        run_tests=true
+    fi
+    if [ -n "${CI_PIPELINE_TRIGGERED}" ]; then
+        # For pipeline created by using a trigger token.
+        run_tests=true
+    fi
+    case "${CI_COMMIT_REF_NAME}" in
+        # For the branch or tag name named *-runtime-tests, create a pipeline.
+        (*-runtime-tests) run_tests=true;;
+    esac
+
+    if ${run_tests}; then
+        printf '%s: { extends: .runtime_test }\n' "${tests[@]}"
+    fi
+}
+
 main "${@}"