Use cache instead of artifacts

.github/workflows/ci.yml

@@ -19,15 +19,22 @@ jobs:
     - name: Prepare
       run: |
           ci/setup.sh
-          tar cfz tools.tar.gz tools/
-          du -sh tools.tar.gz
 
-    - name: Archive production artifacts
-      uses: actions/upload-artifact@v3
-      with:
-        name: compiled-tools
-        path: |
-          tools.tar.gz
+    - name: Cache tools
+    id: cache-tools
+    uses: actions/cache@v3
+    env:
+        cache-name: cache-node-modules
+    with:
+        # npm cache files are stored in `~/.npm` on Linux/macOS
+        path: tools/
+        key: ${{ runner.os }}-build-${{ env.cache-name }}-${{ hashFiles('verif/core-v-verif/vendor/riscv/',
+            'verif/regress/install-verilator.sh', 'verif/regress/install-spike.sh', 'ci/') }}
+        restore-keys: |
+        ${{ runner.os }}-build-${{ env.cache-name }}-
+        ${{ runner.os }}-build-
+        ${{ runner.os }}-
+
 
   execute-riscv-tests:
     name: execute-riscv-tests
@@ -44,10 +51,24 @@ jobs:
     - uses: actions/checkout@v2
       with:
         submodules: recursive
-    - name: Download a single artifact
-      uses: actions/download-artifact@v3
-      with:
-        name: compiled-tools
+    - name: Cache tools
+    id: cache-tools
+    uses: actions/cache@v3
+    env:
+        cache-name: cache-node-modules
+    with:
+        # npm cache files are stored in `~/.npm` on Linux/macOS
+        path: tools/
+        key: ${{ runner.os }}-build-${{ env.cache-name }}-${{ hashFiles('verif/core-v-verif/vendor/riscv/',
+            'verif/regress/install-verilator.sh', 'verif/regress/install-spike.sh', 'ci/') }}
+        restore-keys: |
+        ${{ runner.os }}-build-${{ env.cache-name }}-
+        ${{ runner.os }}-build-
+
+      - if: ${{ steps.cache-tools.outputs.cache-hit != 'true' }}
+        name: List the versions of the tool
+        continue-on-error: true
+        run: ./tools/spike/bin/spike -v || ./tools/bin/verilator -v
     - name: Run Tests
       run: |
           set -x