name: Sync Back to Dev Branch
on:
  push:
    branches:
      - '*'

env:  
  EMAIL: ${{ secrets.email }}
  REPO_BRANCH: ${{ github.ref }}
  USERNAME: ${{ github.actor }}


jobs:
  sync_back:
    runs-on: ubuntu-latest

    steps:
    
    - name: Set globals
      run: |
        repo=${GITHUB_REPOSITORY#*/}
        original_repo_issue=${repo::-5}
        issue_name=${GITHUB_REF#refs/heads/}
        len_issue=$(( -${#issue_name}-1 ))
        original_project=${original_repo_issue::${len_issue}}
        echo "original_project=$original_project" >> $GITHUB_ENV
        
    - name: Setup SSH keys
      run: |
        mkdir -p ~/.ssh
        echo "${{ secrets.SSH_PRIVATE_KEY }}" > ~/.ssh/id_ed25519
        chmod 600 ~/.ssh/id_ed25519
        ssh-keyscan github.com >> ~/.ssh/known_hosts

    - name: Checkout code from mirror
      uses: actions/checkout@v2
      with:
        ref: ${{ env.REPO_BRANCH }}

    - name: Checkout dev branch
      run: |
        git clone git@github.com:${USERNAME}/${original_project}.git
        git fetch --unshallow
        echo ${original_project}
        cd ${original_project}
        echo ${GITHUB_REF#refs/heads/}
        git checkout ${GITHUB_REF#refs/heads/}
        
    - name: Merge and Push
      run: |
        cd ${original_project}
        git config pull.rebase false
        git config --global user.email $EMAIL
        git config --global user.name $USERNAME
        git pull ../ ${GITHUB_REF#refs/heads/}
        git push origin ${GITHUB_REF#refs/heads/}