name: Package and release
on:
  push:
    branches: [ master ]
  pull_request:
    branches: [ master ]

env:
  DEBIAN_RELEASE: buster
  DOCKER_PWD: /root
  DOCKER_IMAGE: debian:${DEBIAN_RELEASE}
  GO_VERSION: 1.15.5

jobs:
  build:
    runs-on: ubuntu-latest
    strategy:
      matrix:
        os: [dragonfly, freebsd, linux, netbsd, openbsd]
        arch: [amd64, arm, arm64, mips, mips64, mips64le, ppc64, ppc64le, s390x ]
        exclude:
          - os: dragonfly
            arch: arm
          - os: dragonfly
            arch: arm64
          - os: dragonfly
            arch: mips
          - os: dragonfly
            arch: mips64
          - os: dragonfly
            arch: mips64le
          - os: dragonfly
            arch: ppc64
          - os: dragonfly
            arch: ppc64le
          - os: dragonfly
            arch: s390x
          - os: freebsd
            arch: arm64
          - os: freebsd
            arch: mips
          - os: freebsd
            arch: mips64
          - os: freebsd
            arch: mips64le
          - os: freebsd
            arch: ppc64
          - os: freebsd
            arch: ppc64le
          - os: freebsd
            arch: s390x
          - os: netbsd
            arch: arm64
          - os: netbsd
            arch: mips
          - os: netbsd
            arch: mips64
          - os: netbsd
            arch: mips64le
          - os: netbsd
            arch: ppc64
          - os: netbsd
            arch: ppc64le
          - os: netbsd
            arch: s390x
          - os: openbsd
            arch: arm64
          - os: openbsd
            arch: mips
          - os: openbsd
            arch: mips64
          - os: openbsd
            arch: mips64le
          - os: openbsd
            arch: ppc64
          - os: openbsd
            arch: ppc64le
          - os: openbsd
            arch: s390x

    steps:
      - name: Clone repository
        uses: actions/checkout@v2

      - name: Set environment from runtime properties
        run: echo "MATTERMOST_RELEASE=$(grep 'mattermost' dependabot/go.mod | cut -d' ' -f3)" >> $GITHUB_ENV

      - name: Pull docker image
        run: 'docker pull "${{ env.DOCKER_IMAGE }}"'

      - name: Build
        env:
          GOOS: ${{ matrix.os }}
          GOARCH: ${{ matrix.arch }}
        run: docker run --mount="type=bind,source=$PWD,destination=${{ env.DOCKER_PWD }}" --rm=true --tty=true --workdir="${{ env.DOCKER_PWD }}" -e DEBIAN_RELEASE -e MATTERMOST_RELEASE -e GOOS -e GOARCH "${{ env.DOCKER_IMAGE }}" ./build.sh

      - name: Tag release
        if: github.ref == 'refs/heads/master'
        uses: actions/github-script@v3
        # this throws an error if the tag already exists. can't find a way around that without writing our own Github REST client or forking github's scripts repo.
        # would prefer to do this before any of these jobs run, but we need to know the mattermost version which only happens after a clone. could potentially
        # setup a separate job which does clone + tag, but felt like this was "good enough" for now.
        continue-on-error: true
        with:
          script: |
            github.git.createRef({
              owner: context.repo.owner,
              repo: context.repo.repo,
              ref: 'refs/tags/${{ env.MATTERMOST_RELEASE }}',
              sha: context.sha
            })

      - name: Create Github release
        if: github.ref == 'refs/heads/master'
        uses: softprops/action-gh-release@v1
        env:
          GITHUB_TOKEN: ${{ secrets.GITHUB_TOKEN }}
        with:
          tag_name: ${{ env.MATTERMOST_RELEASE }}
          files: |
            mattermost-${{ env.MATTERMOST_RELEASE }}-${{ matrix.os }}-${{ matrix.arch }}.tar.gz
            mattermost-${{ env.MATTERMOST_RELEASE }}-${{ matrix.os }}-${{ matrix.arch }}.tar.gz.sha512sum