ci/skqp: Add gitlab sections for uncluttering

skqp output is verbose, as we are running multiple backends at the same
job, normally the trace will surpass the Gitlab UI line limit.

This commit wraps every skqp execution in a Gitlab section and removes
some `set -xtrace` from skqp-runner.sh for a cleaner output.

Signed-off-by: Guilherme Gallo <guilherme.gallo@collabora.com>
Part-of: <https://gitlab.freedesktop.org/mesa/mesa/-/merge_requests/17835>

.gitlab-ci/skqp-runner.sh

@@ -22,6 +22,20 @@
 # OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
 # SOFTWARE.
 
+# Args:
+# $1: section id
+# $2: section header
+gitlab_section_start() {
+    echo -e "\e[0Ksection_start:$(date +%s):$1[collapsed=${GL_COLLAPSED:-false}]\r\e[0K\e[32;1m$2\e[0m"
+}
+
+# Args:
+# $1: section id
+gitlab_section_end() {
+        echo -e "\e[0Ksection_end:$(date +%s):$1\r\e[0K"
+}
+
+
 # sponge allows piping to files that are being used as input.
 # E.g.: sort file.txt | sponge file.txt
 # In order to avoid installing moreutils just to have the sponge binary, we can
@@ -92,9 +106,20 @@ merge_rendertests_files() {
         sponge "$BASE_FILE"
 }
 
+assure_files() (
+    for CASELIST_FILE in $*
+    do
+        >&2 echo "Looking for ${CASELIST_FILE}..."
+        [ -f ${CASELIST_FILE} ] || (
+            >&2 echo "Not found. Creating empty."
+            touch ${CASELIST_FILE}
+        )
+    done
+)
+
 # Generate rendertests from scratch, customizing with fails/flakes/crashes files
 generate_rendertests() (
-    set -ex
+    set -e
     GENERATED_FILE=$(mktemp)
     TESTS_FILE_PREFIX="${SKQP_FILE_PREFIX}-${SKQP_BACKEND}_rendertests"
     FLAKES_FILE="${TESTS_FILE_PREFIX}-flakes.txt"
@@ -103,7 +128,7 @@ generate_rendertests() (
     RENDER_TESTS_FILE="${TESTS_FILE_PREFIX}.txt"
 
     # Default to an empty known flakes file if it doesn't exist.
-    touch "${FLAKES_FILE}" "${FAILS_FILE}" "${CRASHES_FILE}"
+    assure_files ${FLAKES_FILE} ${FAILS_FILE} ${CRASHES_FILE}
 
     # skqp does not support comments in rendertests.txt file
     remove_comments_from_files "${FLAKES_FILE}" "${FAILS_FILE}" "${CRASHES_FILE}"
@@ -125,7 +150,7 @@ generate_rendertests() (
 )
 
 generate_unittests() (
-    set -ex
+    set -e
     GENERATED_FILE=$(mktemp)
     TESTS_FILE_PREFIX="${SKQP_FILE_PREFIX}_unittests"
     FLAKES_FILE="${TESTS_FILE_PREFIX}-flakes.txt"
@@ -134,7 +159,7 @@ generate_unittests() (
     UNIT_TESTS_FILE="${TESTS_FILE_PREFIX}.txt"
 
     # Default to an empty known flakes file if it doesn't exist.
-    touch "${FLAKES_FILE}" "${FAILS_FILE}" "${CRASHES_FILE}"
+    assure_files ${FLAKES_FILE} ${FAILS_FILE} ${CRASHES_FILE}
 
     # Remove unitTest_ prefix
     for UT_FILE in "${FAILS_FILE}" "${CRASHES_FILE}" "${FLAKES_FILE}"; do
@@ -154,7 +179,7 @@ generate_unittests() (
 )
 
 run_all_tests() {
-    rm "${SKQP_ASSETS_DIR}"/skqp/*.txt
+    rm -f "${SKQP_ASSETS_DIR}"/skqp/*.txt
 }
 
 copy_tests_files() (
@@ -167,6 +192,7 @@ copy_tests_files() (
 
     if echo "${SKQP_BACKEND}" | grep -qE 'vk|gl(es)?'
     then
+        echo "Generating rendertests.txt file"
         GENERATED_RENDERTESTS=$(generate_rendertests)
         cp "${GENERATED_RENDERTESTS}" "${SKQP_ASSETS_DIR}"/skqp/rendertests.txt
         mkdir -p "${SKQP_RESULTS_DIR}/${SKQP_BACKEND}"
@@ -178,6 +204,7 @@ copy_tests_files() (
     # that is why it needs to be a special case.
     if echo "${SKQP_BACKEND}" | grep -qE "unitTest"
     then
+        echo "Generating unittests.txt file"
         GENERATED_UNITTESTS=$(generate_unittests)
         cp "${GENERATED_UNITTESTS}" "${SKQP_ASSETS_DIR}"/skqp/unittests.txt
         mkdir -p "${SKQP_RESULTS_DIR}/${SKQP_BACKEND}"
@@ -291,7 +318,7 @@ parse_args() {
     done
 }
 
-set -ex
+set -e
 
 parse_args "${@}"
 
@@ -324,12 +351,17 @@ do
     SKQP_BACKEND_RESULTS_DIR="${SKQP_RESULTS_DIR}"/"${SKQP_BACKEND}"
     mkdir -p "${SKQP_BACKEND_RESULTS_DIR}"
     BACKEND_EXITCODE=0
+
+    GL_COLLAPSED=true gitlab_section_start "skqp_${SKQP_BACKEND}" "skqp logs for ${SKQP_BACKEND}"
     "${SKQP_BIN_DIR}"/skqp "${SKQP_ASSETS_DIR}" "${SKQP_BACKEND_RESULTS_DIR}" "${SKQP_BACKEND}_" ||
         BACKEND_EXITCODE=$?
+    gitlab_section_end "skqp_${SKQP_BACKEND}"
 
     if [ ! $BACKEND_EXITCODE -eq 0 ]
     then
         echo "skqp failed on ${SKQP_BACKEND} tests with exit code: ${BACKEND_EXITCODE}."
+    else
+        echo "skqp succeeded on ${SKQP_BACKEND}."
     fi
 
     # Propagate error codes to leverage the final job result