Print ccache stats for macOS builds

.gitlab-ci.yml

@@ -131,10 +131,12 @@ Debian_Clang_tests:
     - export CCACHE_BASEDIR="$(pwd)"
     - export CCACHE_DIR="$(pwd)/ccache"
     - mkdir -pv "${CCACHE_DIR}"
+    - ccache -z -M "${CCACHE_SIZE}"
     - CI/before_install.osx.sh
     - CI/before_script.osx.sh
     - cd build; make -j $(sysctl -n hw.logicalcpu) package
     - for dmg in *.dmg; do mv "$dmg" "${dmg%.dmg}_${CI_COMMIT_REF_NAME}_${CI_JOB_ID}.dmg"; done
+    - ccache -s
   artifacts:
     paths:
       - build/OpenMW-*.dmg
@@ -145,12 +147,16 @@ macOS11_Xcode12:
   image: macos-11-xcode-12
   cache:
     key: macOS11_Xcode12.v1
+  variables:
+    CCACHE_SIZE: 3G
 
 macOS10.15_Xcode11:
   extends: .MacOS
   image: macos-10.15-xcode-11
   cache:
     key: macOS10.15_Xcode11.v1
+  variables:
+    CCACHE_SIZE: 3G
 
 variables: &engine-targets
   targets: "openmw,openmw-essimporter,openmw-iniimporter,openmw-launcher,openmw-wizard"