Improved release scripts: (#307)

- Removed hard coded branch for release.
- Build only master branch by default.
- Validate if release contains SNAPSHOT version.

.github/workflows/build.yml

@@ -2,6 +2,8 @@ name: SmallRye Build
 
 on:
   push:
+    branches: 
+      - master
     paths-ignore:
       - '.gitignore'
       - 'CODEOWNERS'

.github/workflows/pre-release.yml

@@ -18,6 +18,12 @@ jobs:
           github-token: ${{secrets.GITHUB_TOKEN}}
           metadata-file-path: '.github/project.yml'
 
+      - name: Validate version
+        if: contains(steps.metadata.outputs.current-version, 'SNAPSHOT')
+        run: |
+          echo '::error::Cannot release a SNAPSHOT version.'
+          exit 1
+
       - uses: radcortez/milestone-review-action@master
         name: milestone review
         with:

.github/workflows/release.yml

@@ -40,7 +40,7 @@ jobs:
           git config --global user.email "[email protected]"
           git checkout -b release
           mvn -B release:prepare -Prelease -DreleaseVersion=${{steps.metadata.outputs.current-version}} -s maven-settings.xml
-          git checkout master
+          git checkout ${{github.base_ref}}
           git rebase release
           mvn -B release:perform -Prelease -s maven-settings.xml
           git push