build(promote): add promote action

This action promotes the target RC tag and creates a release (marked as latest) based on it.

Signed-off-by: francesco-racciatti <[email protected]>

.github/workflows/promote.yml

@@ -0,0 +1,72 @@
+name: promote
+
+on:
+  workflow_dispatch:
+    inputs:
+      release_version:
+        description: 'The release version, e.g. 5.0.0.'
+        type: string
+        required: true
+
+      rc_number:
+        description: 'The release candidate number to promote, e.g. 1.'
+        type: string
+        required: true
+
+jobs:
+  promote:
+    env:
+      RC_NAME: ${{ inputs.release_version }}-rc${{ inputs.rc_tag }}
+    name: Promote
+    runs-on: ubuntu-latest
+    steps:
+      - name: Verify inputs
+        shell: bash
+        run: |
+          if [[ ! "${{ inputs.release_version }}" =~ ^([0-9]+)\.([0-9]+)\.([0-9]+)$ ]]; then
+            echo "The provided release version is not valid"
+            exit 1
+          fi
+
+          if [[ ! "${{ inputs.rc_number }}" =~ ^([0-9])+$ ]]; then
+            echo "The provided rc tag is not valid"
+            exit 1
+          fi
+
+      - name: Checkout Code
+        uses: actions/checkout@v4
+        with:
+          fetch-depth: 0
+
+      - name: Promote RC Tag
+        shell: bash
+        run: |
+          if ! git rev-parse "${RC_NAME}" &>/dev/null; then
+            echo "The RC Tag ${RC_NAME} does not exist"
+            exit 1
+          fi
+
+          git fetch --tags
+          git tag "${{ inputs.release_version }}" "${RC_NAME}"
+          git push -u origin "${{ inputs.release_version }}"
+
+      - name: Get resources from RC
+        shell: bash
+        run: |
+          rm -f cloudformation.zip
+          rm -f checksums.txt
+          curl -L "https://github.com/${{ github.repository }}/releases/download/${RC_NAME}/cloudformation.zip" > cloudformation.zip
+          curl -L "https://github.com/${{ github.repository }}/releases/download/${RC_NAME}/checksums.txt" > checksums.txt
+
+      - name: Create release
+        uses: softprops/action-gh-release@v2
+        env:
+          GITHUB_TOKEN: ${{ secrets.GITHUB_TOKEN }}
+        with:
+          files: |
+            cloudformation.zip
+            checksums.txt
+          name: ${{ inputs.release_version }}
+          tag_name: ${{ inputs.release_version }}
+          prerelease: false
+          make_latest: true