fix: Only output a file that exists

Author: smockle

.github/actions/gh-cache/cache/action.yml

@@ -35,7 +35,8 @@ runs:
       run: |
         mkdir -p "$(dirname "${{ inputs.key }}")"
         echo '${{ inputs.value }}' > "${{ inputs.key }}"
-    - name: Save cached value
+    - if: ${{ inputs.value }}
+      name: Save cached value
       uses: github/continuous-accessibility-scanner/.github/actions/gh-cache/save@smockle/cache-findings
       with:
         path: ${{ inputs.key }}
@@ -44,7 +45,9 @@ runs:
       shell: bash
       run: |
         echo "value<<EOF" >> $GITHUB_OUTPUT
-        cat "${{ inputs.key }}" >> $GITHUB_OUTPUT
+        if [ -f "${{ inputs.key }}" ]; then
+          cat "${{ inputs.key }}" >> $GITHUB_OUTPUT
+        fi
         echo "EOF" >> $GITHUB_OUTPUT
 
 branding:

.github/actions/gh-cache/save/action.yml

@@ -33,15 +33,15 @@ runs:
     - name: Copy file to repo
       shell: bash
       run: |
-        if [ -e "${{ inputs.path }}" ]; then
+        if [ -f "${{ inputs.path }}" ]; then
           cp -Rf "${{ inputs.path }}" ".gh-cache-${{ github.run_id }}/${{ inputs.path }}"
         fi
 
     - name: Commit and push
       shell: bash
       working-directory: .gh-cache-${{ github.run_id }}
       run: |
-        if [ -e "${{ inputs.path }}" ]; then
+        if [ -f "${{ inputs.path }}" ]; then
           git add "${{ inputs.path }}"
           git config user.name "github-actions[bot]"
           git config user.email "github-actions[bot]@users.noreply.github.com"