trigger-deploy.yml

name: Trigger deploy after merges to main 

on: 
  push:
    branches: [main]

jobs:
  merge-commits-trigger-deploy:
    runs-on: ubuntu-latest
    permissions:
      actions: write # be able to trigger another workflow 
      contents: write # to merge commits into latest branch 
    steps:
    - uses: actions/checkout@v4

    - name: Merge main -> latest to trigger a deploy on latest 
      uses: devmasx/merge-branch@v1.4.0
      with:
        type: now
        from_branch: main
        target_branch: latest
        github_token: ${{ secrets.GITHUB_TOKEN }}
    
    # We manually run here because github will not execute github actions as a result of commits being pushed to latest branch. 
    - name: Trigger deploy 
      uses: aurelien-baudet/workflow-dispatch@v2
      id: deploy-action
      with:
        workflow: deployment.yml
        wait-for-completion: false
        ref: latest # run the workflow on latest branch so deploy happens on it. 
        token: ${{ secrets.GITHUB_TOKEN }}