Add cache-verify.yml

.gitea/workflows/cache-verify.yml

@@ -0,0 +1,50 @@
+name: Cache Verify
+
+on:
+  workflow_dispatch:
+
+jobs:
+  cache-verify:
+    runs-on: ubuntu-latest
+    steps:
+      - name: Checkout
+        uses: actions/checkout@v4
+
+      # 1) Show what cache/runtimes URLs the runner injected into this job
+      - name: Print cache environment
+        run: |
+          echo "ACTIONS_CACHE_URL=${ACTIONS_CACHE_URL}"
+          echo "ACTIONS_RUNTIME_URL=${ACTIONS_RUNTIME_URL}"
+
+      # 2) Ping the cache status endpoint (works with either host IP or service name)
+      - name: Probe cache server
+        run: |
+          URL="${ACTIONS_CACHE_URL%/}/_apis/artifactcache/status"
+          echo "Checking: $URL"
+          if command -v curl >/dev/null 2>&1; then
+            curl -fsS "$URL"
+          else
+            wget -qO- "$URL"
+          fi
+
+      # 3) Use the cache action with a stable key
+      #    - First run => MISS (will SAVE at the end)
+      #    - Second run => HIT
+      - name: Use actions/cache
+        uses: actions/cache@v3
+        with:
+          path: ~/.cache/demo
+          key: cache-verify-${{ runner.os }}-v1
+
+      # 4) Write a marker file so we can see reuse across runs
+      - name: Write marker
+        run: |
+          mkdir -p ~/.cache/demo
+          date -u +"%Y-%m-%dT%H:%M:%SZ" > ~/.cache/demo/when.txt
+          echo "Wrote: $(cat ~/.cache/demo/when.txt)"
+
+      # 5) Read marker (on a cache HIT, this value will be from the previous run)
+      - name: Read marker
+        run: |
+          echo "Marker content:"
+          cat ~/.cache/demo/when.txt || echo "<missing>"