Save on successful build

Author: christophfroehlich

.github/workflows/reusable-industrial-ci-with-cache.yml

@@ -130,8 +130,8 @@ jobs:
         id: ici
       - name: Save ccache folder
         uses: actions/cache/save@v4
-        # but only on default branch to save disk space
-        if: github.ref == format('refs/heads/{0}', github.event.repository.default_branch)
+        # save if build step succeeded, but only on default branch to save disk space
+        if: ${{ always() && github.ref == format('refs/heads/{0}', github.event.repository.default_branch) && steps.ici.outputs.build_target_workspace == '0' }}
         with:
           path: ${{ env.CCACHE_DIR }}
           key: ccache-${{ env.CACHE_PREFIX }}-${{ github.sha }}-${{ github.run_id }}