create-draft-release.yml

name: 'Create draft release from upstream'

on:
  workflow_dispatch:
    inputs:
      release:
        description: 'Upstream release'
        required: true
        type: string
      publish:
        description: 'Whether to publish the release to GitHub on success'
        type: boolean
        required: false
        default: false

jobs:
  publish-draft-release:
    runs-on: ubuntu-latest
    name: Publish draft release
    steps:
      - name: Checkout
        uses: actions/checkout@v4
        with:
          token: ${{ secrets.CREATE_RELEASE_AUTOMATION_TOKEN }}
      - name: Configure git
        run: |
          git config --global user.name "shiftbot"
          git config --global user.email "github@brendanforster.com"
          git config --local core.autocrlf "input"
          git remote add upstream https://github.com/desktop/desktop.git
        shell: bash
      - name: Create baseline branch on fork
        id: create-baseline-branch
        env:
          RELEASE_TAG: ${{ inputs.release }}
          BASE_BRANCH: 'linux-${{ inputs.release }}'
        run: |
          git fetch upstream 'refs/tags/*:refs/tags/*'
          git fetch origin --unshallow
          git checkout -b $BASE_BRANCH $RELEASE_TAG
          git push origin $BASE_BRANCH
          git config -l --show-origin
        shell: bash
      - name: Rebase Linux customizations on top of upstream release branch
        id: rebase-linux-branch
        env:
          HEAD_BRANCH: 'apply-changes-${{ inputs.release }}'
          BASE_BRANCH: 'linux-${{ inputs.release }}'
          UPSTREAM_BRANCH: 'development'
        run: |

          git fetch origin linux
          git fetch origin $UPSTREAM_BRANCH
          git checkout -b $HEAD_BRANCH linux
          git push origin $HEAD_BRANCH
          git submodule update
          echo "One last git config output..."
          git config -l --show-origin
          echo "Commit identifiers before performing rebase..."
          echo "BASE_BRANCH: $(git rev-parse $BASE_BRANCH)"
          echo "development: $(git rev-parse origin/$UPSTREAM_BRANCH)"
          echo "HEAD_BRANCH: $(git rev-parse $HEAD_BRANCH)"
          echo "About to run 'git log --oneline --decorate=full --graph $HEAD_BRANCH...origin/$UPSTREAM_BRANCH'..."
          git log --oneline --decorate=full --graph $HEAD_BRANCH...origin/$UPSTREAM_BRANCH
          echo "About to run 'git rebase --verbose origin/$UPSTREAM_BRANCH $HEAD_BRANCH --onto $BASE_BRANCH'..."
          git rebase --verbose origin/$UPSTREAM_BRANCH $HEAD_BRANCH --onto $BASE_BRANCH
          git push origin $HEAD_BRANCH
        shell: bash
        continue-on-error: true
      - name: Review current status
        id: status
        run: |
          git status
        shell: bash