create-release-tag.yml

name: Create Release Tag

on:
  pull_request:
    types: [closed]
    branches:
      - mainnet
      - testnet

env:
  HEAD_BRANCH: ${{ github.head_ref || github.ref_name }}

permissions:
  contents: write
  pull-requests: write

jobs:
  create-release-tag:
    runs-on: ubuntu-latest
    if: github.event.pull_request.merged == true
    steps:
    - name: Set Env
      run: |
        echo "VERSION=$(echo -n ${{ env.HEAD_BRANCH }} | sed 's/.*deploy\///' | cut -d'-' -f1)" >> $GITHUB_ENV
        echo "NETWORK=$(echo -n ${{ env.HEAD_BRANCH }} | sed 's/.*deploy\/v[0-9\.]*-\(.*\)/\1/')" >> $GITHUB_ENV

    - name: Checkout code
      uses: actions/checkout@b4ffde65f46336ab88eb53be808477a3936bae11 # v4.1.1
      with:
        ref: ${{ env.NETWORK }}
        fetch-depth: 0
        fetch-tags: 'true'

    - name: Set Mainnet Tag
      if: ${{ env.NETWORK == 'mainnet' }}
      run: |
        echo "TAG=${{ env.VERSION }}" >> $GITHUB_ENV
    
    - name: Set Testnet Tag
      if: ${{ env.NETWORK == 'testnet' }}
      run: |
        echo "TAG=${{ env.VERSION }}-testnet" >> $GITHUB_ENV

    - name: Get Testnet Latest Tag
      if: ${{ env.NETWORK == 'testnet' }}
      run: |
        echo "LATESTTAG=$(git describe --tags --match "*testnet*" --abbrev=0)" >> $GITHUB_ENV

    - name: Get Mainnet Latest Tag
      if: ${{ env.NETWORK == 'mainnet' }}
      run: |
        echo "LATESTTAG=$(git describe --tags --match "*mainnet*" --abbrev=0)" >> $GITHUB_ENV

    - name: Create release
      env:
        GITHUB_TOKEN: ${{ secrets.GITHUB_TOKEN }}
        tag: ${{ env.TAG }}
      run: |
        gh release create "$tag" \
            --repo "$GITHUB_REPOSITORY" \
            --title "${{ env.NETWORK }} release ${{ env.VERSION }}" \
            --target "${{ env.NETWORK }}" \
            --notes-start-tag "${{ env.LATESTTAG }}" \
            --generate-notes