Add minor release detection

.github/workflows/release.yml

@@ -28,6 +28,53 @@ jobs:
         with:
           fetch-depth: 0
           ref: main
+
+      - name: Minor Release Check
+        id: minor_release
+        run: |
+          version="$INPUT_VERSION"
+          
+          # Check if version is in format number.number.number
+          if ! [[ $version =~ ^[0-9]+\.[0-9]+\.[0-9]+$ ]]; then
+            echo "Invalid version format. It should be in format 'number.number.number'."
+            exit 1
+          fi
+
+          # Extract the third number
+          IFS='.' read -r -a version_parts <<< "$version"
+          third_number="${version_parts[2]}"
+
+          # Check if it's a minor release
+          if [ "$third_number" -eq 0 ]; then
+            echo "Minor release detected."
+            echo "is_minor=true" >> $GITHUB_ENV
+          else
+            echo "Not a minor release. Skipping branch creation."
+            echo "is_minor=false" >> $GITHUB_ENV
+          fi
+    
+      - name: Create and Push New Release Branch
+        if: env.is_minor == 'true'
+        run: |
+          version="$INPUT_VERSION"
+          IFS='.' read -r -a version_parts <<< "$version"
+          release_branch="${version_parts[0]}.${version_parts[1]}.x"
+
+          git fetch origin
+          git checkout origin/main
+          git checkout -b $release_branch
+          git push origin $release_branch
+        
+      - name: Check-out Release Branch
+        run: |
+          version="$INPUT_VERSION"
+          IFS='.' read -r -a version_parts <<< "$version"
+          release_branch="${version_parts[0]}.${version_parts[1]}.x"
+          echo "base_branch=${version_parts[0]}.${version_parts[1]}.x" >> $GITHUB_ENV
+          echo $base_branch
+          
+          git checkout $release_branch
+          git branch
 
       - name: Setup Python Environment
         uses: ./.github/actions/setup-python-env
@@ -38,7 +85,6 @@ jobs:
         run:  |
           git config user.name "rasabot"
           git config user.email "[email protected]"
-          git checkout -b prepare-release-$INPUT_VERSION
           poetry run python scripts/release.py --next_version $INPUT_VERSION
         env:
           INPUT_VERSION: ${{ github.event.inputs.version }}
@@ -47,8 +93,8 @@ jobs:
         uses: devops-infra/action-pull-request@e66e2ba93519dc63b9884a26e620e2fd0cffab2c # v0.5.5
         with:
           github_token: ${{ env.GITHUB_TOKEN }}
-          source_branch: prepare-release-${{ env.VERSION }}
-          target_branch: main
+          source_branch: prepare-release-${{ env.INPUT_VERSION }}
+          target_branch: ${{ env.base_branch }}
           body: "**Automated pull request for Rasa SDK release.**"
           title: Release ${{ github.event.inputs.version }}
         env: