sync-with-upstream.yml

name: Sync packages with upstream

# Git for Windows is a slightly modified subset of MSYS2. Some of its
# components are maintained by Git for Windows, others by MSYS2. Since 
# Git for Windows currently needs i686 versions of some packages maintained
# by MSYS2 and they don't build them for that architecture, this workflow
# monitors their git repository and opens new pull requests for updated packages.
 
on:
  schedule:
    - cron: "13 17 * * *"
  workflow_dispatch:

permissions:
  contents: write
  pull-requests: write

jobs:
  syncPackages:
    strategy:
      matrix:
        package: [ca-certificates, coreutils, less, nano, p11-kit, vim]
    runs-on: ubuntu-latest
    steps:
      - uses: actions/checkout@v2
      - name: Check for upstream changes
        run: |
          git remote add upstream https://github.com/msys2/MSYS2-Packages.git
          git fetch upstream master
          msys_pkgver="$(git grep -h 'pkgver=' upstream/master -- ${{ matrix.package }}/PKGBUILD)"
          msys_pkgrel="$(git grep -h 'pkgrel=' upstream/master -- ${{ matrix.package }}/PKGBUILD)"
          our_pkgver="$(git grep -h 'pkgver=' sync-with-upstream -- ${{ matrix.package }}/PKGBUILD)"
          our_pkgrel="$(git grep -h 'pkgrel=' sync-with-upstream -- ${{ matrix.package }}/PKGBUILD)"
          if [ $msys_pkgver != $our_pkgver ] || [ $msys_pkgrel != $our_pkgrel ]
            then
              rm ${{ matrix.package }}/*
              git checkout upstream/master -- "${{ matrix.package }}/*"
          fi
      - name: Create Pull Request
        uses: peter-evans/create-pull-request@v3
        with:
          branch: sync-${{ matrix.package }}
          title: "${{ matrix.package }}: sync with upstream"
          body: Update ${{ matrix.package }} to MSYS2's version.
          commit-message: "${{ matrix.package }}: synchronize with MSYS2's version"
          signoff: true
          committer: Git for Windows Build Agent <ci@git-for-windows.build>