From 138b8a79d554a6f98e58f0c3b080612d3feda2e7 Mon Sep 17 00:00:00 2001
From: Daniel Kotik <d.kotik@hzdr.de>
Date: Fri, 31 May 2024 22:38:27 +0200
Subject: [PATCH] Restrict usage of cache to PRs:

Usage of the cache should speed up *multiple* workflow runs within PRs
for fixing failed tests etc. So far even for pushes to `develop` and
`master` branches (merge commit of PRs) the Docker image is also
uploaded to the cache, but most likely won't get used afterwards and
hence only occupies cached storage.
---
 .github/workflows/cpu-tests.yml | 1 +
 1 file changed, 1 insertion(+)

diff --git a/.github/workflows/cpu-tests.yml b/.github/workflows/cpu-tests.yml
index 531fb0c7c..50c152bbb 100644
--- a/.github/workflows/cpu-tests.yml
+++ b/.github/workflows/cpu-tests.yml
@@ -42,6 +42,7 @@ jobs:
       - name: Restore cache
         uses: actions/cache@v3
         id: cache-docker
+        if: github.event_name == 'pull_request'
         with:
           path: ${{ env.DOCKER_CACHE_PATH }}
           key: ${{ github.run_id }}