Validate rules for GitHub branches when creating a pull request

[hamidonos]

Situation

We have a branch name convention which currently is not validated automatically.

Wanted

Configure the pipelines to validate the branch name. Invalid branch names should make the pipeline fail.

Solution

Something like this should do the trick.

jobs:
  check-branch-name:
    runs-on: ubuntu-latest

    steps:
      - name: Check branch name
        run: |
          BRANCH_NAME=${GITHUB_REF#refs/heads/}
          if [[ ! "$BRANCH_NAME" =~ ^(feature|bugfix|hotfix)/.+$ ]]; then
            echo "Branch name '$BRANCH_NAME' does not match the required pattern."
            exit 1
          fi

It might be desirable to put this into a blueprint which can be used across all GitHub workflows.