support derived components

.github/workflows/test-derived.yml

@@ -0,0 +1,40 @@
+name: Test Derived Component Settings
+on:
+  #  # Uncomment when test added first time to register workflow and comment it back after workflow would be registered
+  #  #
+  #  # Added pull_request to register workflow from the PR.
+  #  # Read more https://stackoverflow.com/questions/63362126/github-actions-how-to-run-a-workflow-created-on-a-non-master-branch-from-the-wo
+  #  pull_request: {}
+  workflow_dispatch: {}
+
+jobs:
+  test:
+    runs-on: ubuntu-latest
+    continue-on-error: true
+    outputs:
+      result: "${{ steps.current.outputs.value }}"
+    steps:
+      - name: Setup terraform
+        uses: hashicorp/setup-terraform@v2
+      - name: Setup atmos
+        uses: cloudposse/[email protected]
+        with:
+          install-wrapper: false
+      - name: Checkout
+        uses: actions/checkout@v3
+
+      - uses: ./
+        id: current
+        with:
+          component: derived-foo
+          stack: core-ue1-dev
+          settings-path: level1.level2.level3.secrets-arn
+
+  assert:
+    runs-on: ubuntu-latest
+    needs: [test]
+    steps:
+      - uses: nick-fields/assert-action@v1
+        with:
+          expected: arn:aws:secretsmanager:us-east-1:000000000000:secret:MySecret-PlMes4
+          actual: "${{ needs.test.outputs.result }}"

action.yml

@@ -24,5 +24,5 @@ runs:
     - id: settings
       shell: bash
       run: |
-        value=$(atmos describe stacks -s ${{ inputs.stack }} --components ${{ inputs.component }} --sections=settings --format json | jq -rc --arg key "${{inputs.settings-path}}" '.. | select(.settings)?| .settings | select(has($key | split(".")[])) | getpath($key | split("."))')
+        value=$(atmos describe stacks -s ${{ inputs.stack }} --components ${{ inputs.component }} --sections=settings --format json | jq -rc --arg key "${{inputs.settings-path}}" '.. | select(.settings)?| .settings | select(has($key | split(".")[])) | getpath($key | split("."))' | jq -s .[-1])
         echo "value=$value" >> $GITHUB_OUTPUT

stacks/orgs/demo/dev/dev.yaml

@@ -12,3 +12,13 @@ components:
         environment: ue1
         stage: dev
         foo: bar
+
+    derived-foo:
+      metadata:
+        inherits:
+          - foo
+      settings:
+        level1:
+          level2:
+            level3:
+              secrets-arn: arn:aws:secretsmanager:us-east-1:000000000000:secret:MySecret-PlMes4