name: Upstream sync

on:
  schedule:
    - cron: '0 0 1 * *'
  workflow_dispatch:

jobs:
  sync:
    runs-on: ubuntu-latest
    steps:
      - name: Checkout snapshot
        uses: actions/checkout@v2
        with:
          token: ${{ secrets.TOKEN }}
          ref: snapshot
          fetch-depth: 0
      - name: Fetch upstream
        run: |
          git remote add upstream https://github.com/KevinOConnor/klipper.git
          git fetch upstream master
      - name: Merge changes
        id: merge
        run: |
          echo "::set-output name=status::success"
          echo "::set-output name=tagname::snapshot-$(date +'%y%m%d')"
          git config user.name Desuuuu
          git config user.email Desuuuu@users.noreply.github.com
          git merge --no-commit --no-ff upstream/master
          git commit -m "Merge upstream changes" || echo "::set-output name=status::failure"
      - name: Push changes
        if: steps.merge.outputs.status == 'success'
        run: |
          git push origin snapshot
      - name: Create tag
        if: steps.merge.outputs.status == 'success'
        run: |
          git tag -m '/!\ This is an automated, untested release. Use at your own risk /!\' ${{ steps.merge.outputs.tagname }}
          git push origin refs/tags/${{ steps.merge.outputs.tagname }}
      - name: Create prerelease
        uses: actions/github-script@v3
        if: steps.merge.outputs.status == 'success'
        with:
          github-token: ${{ secrets.TOKEN }}
          script: |
            await github.repos.createRelease({
              owner: context.repo.owner,
              repo: context.repo.repo,
              tag_name: "${{ steps.merge.outputs.tagname }}",
              prerelease: true
            })