ci: log per-job ccache stats

.gitlab/ci/common.yml

@@ -119,6 +119,11 @@ variables:
   # configure cmake related flags
   source tools/ci/configure_ci_environment.sh
 
+  if [[ "$CI_CCACHE_STATS" == 1 ]] && command -v ccache >/dev/null 2>&1 && [[ -n "$CCACHE_STATSLOG" ]]; then
+    mkdir -p "$(dirname "$CCACHE_STATSLOG")"
+    rm -f "$CCACHE_STATSLOG"
+  fi
+
   # add extra python packages
   export PYTHONPATH="$IDF_PATH/tools:$IDF_PATH/tools/ci:$IDF_PATH/tools/esp_app_trace:$IDF_PATH/components/partition_table:$IDF_PATH/tools/ci/python_packages:$PYTHONPATH"
 
@@ -234,7 +239,17 @@ variables:
 .show_ccache_statistics: &show_ccache_statistics |
   # Show ccache statistics if enabled globally
   section_start "ccache_show_stats" "Show ccache statistics"
-  test "$CI_CCACHE_STATS" == 1 && test -n "$(which ccache)" && ccache --show-stats -vv || true
+  if [[ "$CI_CCACHE_STATS" == 1 ]] && command -v ccache >/dev/null 2>&1; then
+    if ccache --help 2>/dev/null | grep -q -- '--show-log-stats'; then
+      if [[ -n "$CCACHE_STATSLOG" && -f "$CCACHE_STATSLOG" ]]; then
+        ccache --show-log-stats -vv
+      else
+        echo "INFO: No per-job ccache statistics were recorded"
+      fi
+    else
+      ccache --show-stats -vv
+    fi
+  fi || true
   section_end "ccache_show_stats"
 
 .upload_failed_job_log_artifacts: &upload_failed_job_log_artifacts |
@@ -249,6 +264,7 @@ variables:
 .after_script:build:
   after_script:
     - source tools/ci/utils.sh
+    - source tools/ci/configure_ci_environment.sh
     - *show_ccache_statistics
     - *upload_failed_job_log_artifacts