chore(action): no need to checkout

action.yml

@@ -22,60 +22,66 @@ outputs:
   matrix_output:
     description: "Uploaded matrix artifact name"
     value: ${{ steps.store-outputs.outputs.matrix }}  
-    
+
 runs:
   using: "composite"
   steps:
-    - name: Checkout
-      uses: actions/checkout@b4ffde65f46336ab88eb53be808477a3936bae11 # v4.1.1
-      with:
-        repository: falcosecurity/kernel-testing
-        ref: ${{ env.ACTION_REF }}
+    # If action_ref points to v0 or v0.3, expect to be on a tag,
+    # else expect that user passed either `main` or an hash.
+    - name: Fetch tag or hash to be used
+      shell: bash
+      working-directory: ${{ github.action_path }}
+      id: git
+      run: |
+        if [[ "$ACTION_REF" =~ ^v[0-9] ]]; then
+            GIT_VER=$(git tag --points-at HEAD)
+        else
+            GIT_VER=$ACTION_REF
+        fi
+        echo "git_ver=$GIT_VER" >> $GITHUB_OUTPUT
       env:
-        ACTION_REF: ${{ github.action_ref }}  
-        
+        ACTION_REF: ${{ github.action_ref }}
+
     - name: Generate vars yaml
-      working-directory: ./ansible-playbooks
+      working-directory: ${{ github.action_path }}/ansible-playbooks
       shell: bash
       run: |
         cat > vars.yml <<EOF
         run_id: "id-${{ github.run_id }}"
         output_dir: "~/ansible_output_${{ github.run_id }}"
-        tag: "${ACTION_REF}"
+        tag: "${{ steps.git.outputs.git_ver }}"
         repos:
           libs: {name: "falcosecurity-libs", repo: "https://github.com/${{ inputs.libsrepo }}.git", version: "${{ inputs.libsversion }}"}
         EOF
-      env:
-        ACTION_REF: ${{ github.action_ref }}    
-
+
     - name: Bootstrap VMs
-      working-directory: ./ansible-playbooks
+      working-directory: ${{ github.action_path }}/ansible-playbooks
       shell: bash
       run: ansible-playbook bootstrap.yml --extra-vars "@vars.yml"
 
     - name: Common setup
-      working-directory: ./ansible-playbooks
+      working-directory: ${{ github.action_path }}/ansible-playbooks
       shell: bash
       run: ansible-playbook common.yml --extra-vars "@vars.yml"
 
     - name: Prepare github repos
-      working-directory: ./ansible-playbooks
+      working-directory: ${{ github.action_path }}/ansible-playbooks
       shell: bash
       run: ansible-playbook git-repos.yml --extra-vars "@vars.yml"
 
     - name: Run scap-open tests
-      working-directory: ./ansible-playbooks
+      working-directory: ${{ github.action_path }}/ansible-playbooks
       shell: bash
       run: |
         ansible-playbook scap-open.yml --extra-vars "@vars.yml" || : 
 
     - name: Tar output files
       shell: bash
-      run: tar -cvf ansible_output.tar ~/ansible_output_${{ github.run_id }}
+      run: tar -cvf $GITHUB_ACTION_PATH/ansible_output.tar ~/ansible_output_${{ github.run_id }}
 
     - name: Build matrix_gen and generate matrix
       if: inputs.build_matrix == 'true'
-      working-directory: ./matrix_gen
+      working-directory: ${{ github.action_path }}/matrix_gen
       env:
         GOPATH: /root/go
         GOCACHE: /root/.cache/go-build
@@ -93,7 +99,7 @@ runs:
 
     - name: Cleanup
       if: always()
-      working-directory: ./ansible-playbooks
+      working-directory: ${{ github.action_path }}/ansible-playbooks
       shell: bash
       run: |
         ansible-playbook clean-up.yml --extra-vars "@vars.yml" || :