name: CLI Release

on:
  workflow_call:
  workflow_dispatch:
  push:
    tags:
      - "cli-v*.*.*"

jobs:
  info:
    name: Gather info
    runs-on: ubuntu-latest
    outputs:
      cli_version: ${{ steps.version.outputs.cli_version }}
      release_notes: ${{ fromJSON(steps.notes.outputs.notes_json) }}
      announce: ${{ steps.announce.outputs.announce }}
    steps:
      - uses: actions/checkout@v2
      - name: Extract version
        id: version
        shell: bash
        run: |
          set -euxo pipefail

          version=$(grep -m1 -F 'version =' crates/cli/Cargo.toml | cut -d\" -f2)

          if [[ -z "$version" ]]; then
            echo "Error: no version :("
            exit 1
          fi

          echo "::set-output name=cli_version::$version"

      - name: Extract release notes
        id: notes
        shell: bash
        env:
          GITHUB_TOKEN: ${{ secrets.GITHUB_TOKEN }}
          GITHUB_REPO: ${{ github.repository }}
          release_commit: ${{ github.event.head_commit.message }}
        run: |
          set -euxo pipefail
          release_pr=$(head -n1 <<< "${release_commit:-}" | grep -oP '(?<=[(]#)\d+(?=[)])')
          if [[ -z "$release_pr" ]]; then
            echo "::set-output name=notes_json::null"
            exit
          fi

          gh \
            pr --repo "$GITHUB_REPO" \
            view "$release_pr" \
            --json body \
            --jq '"::set-output name=notes_json::\((.body | split("### Release notes")[1] // "") | tojson)"'

      - name: Make a new announcement post
        id: announce
        if: endsWith(steps.version.outputs.cli_version, '.0')
        run: echo "::set-output name=announce::Announcements"
        # TODO: append patch release notes as comments on minor version announce discussion
        # TODO: add link to discussion from patch release notes
        # TODO: rename minor version announce discussion to be just CLI vX.Y (remove .0)

  build:
    strategy:
      matrix:
        name:
          - linux-amd64-gnu
          - linux-amd64-musl
          - linux-i686-musl
          - linux-armhf-gnu
          - linux-arm64-gnu
          - linux-arm64-musl
          - linux-s390x-gnu
          - linux-ppc64le-gnu
          - mac-x86-64
          - mac-arm64
          - windows-x86-64
        include:
          - name: linux-amd64-gnu
            os: ubuntu-latest
            target: x86_64-unknown-linux-gnu
            cross: false
            experimental: false

          - name: linux-amd64-musl
            os: ubuntu-latest
            target: x86_64-unknown-linux-musl
            cross: true
            experimental: false

          - name: linux-i686-musl
            os: ubuntu-latest
            target: i686-unknown-linux-musl
            cross: true
            experimental: true

          - name: linux-armhf-gnu
            os: ubuntu-latest
            target: armv7-unknown-linux-gnueabihf
            cross: true
            experimental: false

          - name: linux-arm64-gnu
            os: ubuntu-latest
            target: aarch64-unknown-linux-gnu
            cross: true
            experimental: false

          - name: linux-arm64-musl
            os: ubuntu-latest
            target: aarch64-unknown-linux-musl
            cross: true
            experimental: true

          - name: linux-s390x-gnu
            os: ubuntu-latest
            target: s390x-unknown-linux-gnu
            cross: true
            experimental: false

          - name: linux-ppc64le-gnu
            os: ubuntu-latest
            target: powerpc64le-unknown-linux-gnu
            cross: true
            experimental: false

          - name: mac-x86-64
            os: macos-latest
            target: x86_64-apple-darwin
            cross: false
            experimental: false

          - name: mac-arm64
            os: macos-11.0
            target: aarch64-apple-darwin
            cross: true
            experimental: true

          - name: windows-x86-64
            os: windows-latest
            target: x86_64-pc-windows-msvc
            cross: false
            experimental: false

          #- name: windows-arm64
          #  os: windows-latest
          #  target: aarch64-pc-windows-msvc
          #  cross: true
          #  experimental: true

    name: Binaries for ${{ matrix.name }}
    needs: info
    runs-on: ${{ matrix.os }}
    continue-on-error: ${{ matrix.experimental }}

    env:
      version: ${{ needs.info.outputs.cli_version }}
      dst: watchexec-${{ needs.info.outputs.cli_version }}-${{ matrix.target }}

    steps:
      - uses: actions/checkout@v2
      - uses: actions/cache@v2
        with:
          path: ~/.cargo/registry
          key: ${{ runner.os }}-cargo-registry-${{ hashFiles('Cargo.lock') }}

      - name: Add musl tools
        run: sudo apt install -y musl musl-dev musl-tools
        if: endsWith(matrix.target, '-musl')
      - name: Add aarch-gnu tools
        run: sudo apt install -y gcc-aarch64-linux-gnu
        if: startsWith(matrix.target, 'aarch64-unknown-linux')
      - name: Add arm7hf-gnu tools
        run: sudo apt install -y gcc-arm-linux-gnueabihf
        if: startsWith(matrix.target, 'armv7-unknown-linux-gnueabihf')
      - name: Add s390x-gnu tools
        run: sudo apt install -y gcc-s390x-linux-gnu
        if: startsWith(matrix.target, 's390x-unknown-linux-gnu')
      - name: Add ppc64le-gnu tools
        run: sudo apt install -y gcc-powerpc64le-linux-gnu
        if: startsWith(matrix.target, 'powerpc64le-unknown-linux-gnu')

      - name: Install cargo-deb
        if: startsWith(matrix.name, 'linux-')
        uses: baptiste0928/cargo-install@v1
        with:
          crate: cargo-deb
          version: 1.34.2

      - name: Install cargo-generate-rpm
        if: startsWith(matrix.name, 'linux-')
        uses: baptiste0928/cargo-install@v1
        with:
          crate: cargo-generate-rpm
          version: 0.6.0

      - uses: actions-rs/toolchain@v1
        with:
          target: ${{ matrix.target }}
          toolchain: stable
          profile: minimal
          override: true

      - uses: actions-rs/cargo@v1
        name: Build
        with:
          use-cross: ${{ matrix.cross }}
          command: build
          args: --package watchexec-cli --release --locked --target ${{ matrix.target }}

      - name: Package
        shell: bash
        run: |
          set -euxo pipefail
          ext=""
          [[ "${{ matrix.name }}" == windows-* ]] && ext=".exe"
          bin="target/${{ matrix.target }}/release/watchexec${ext}"
          objcopy --compress-debug-sections "$bin" || strip "$bin" || true

          mkdir "$dst"

          mkdir -p "target/release"
          cp "$bin" "target/release/" # workaround for cargo-deb silliness with targets

          cp "$bin" "$dst/"
          cp -r crates/cli/README.md LICENSE completions doc/{logo.svg,watchexec.1{,.html}} "$dst/"

      - name: Archive (tar)
        if: '! startsWith(matrix.name, ''windows-'')'
        run: tar cavf "$dst.tar.xz" "$dst"
      - name: Archive (deb)
        if: startsWith(matrix.name, 'linux-')
        run: cargo deb -p watchexec-cli --no-build --no-strip --target ${{ matrix.target }} --output "$dst.deb"
      - name: Archive (rpm)
        if: startsWith(matrix.name, 'linux-')
        shell: bash
        run: |
          set -euxo pipefail
          shopt -s globstar
          cargo generate-rpm -p crates/cli --target "${{ matrix.target }}" --target-dir "target/${{ matrix.target }}"
          mv target/**/*.rpm "$dst.rpm"
      - name: Archive (zip)
        if: startsWith(matrix.name, 'windows-')
        shell: bash
        run: 7z a "$dst.zip" "$dst"

      - uses: actions/upload-artifact@v2
        with:
          name: builds
          retention-days: 1
          path: |
            watchexec-*.tar.xz
            watchexec-*.tar.zst
            watchexec-*.deb
            watchexec-*.rpm
            watchexec-*.zip

  sign:
    needs: [build, info]

    name: Checksum and sign
    runs-on: ubuntu-latest


    steps:
      - uses: actions/checkout@v2

      - name: Install rsign2
        uses: baptiste0928/cargo-install@v1
        with:
          crate: rsign2
          version: 0.6.1

      - name: Install b3sum
        uses: baptiste0928/cargo-install@v1
        with:
          crate: b3sum
          version: 1.3.0

      - uses: actions/download-artifact@v2
        with:
          name: builds

      - name: Checksums with BLAKE3
        run: b3sum watchexec-* | tee B3SUMS

      - name: Checksums with SHA512
        run: sha512sum watchexec-* | tee SHA512SUMS

      - name: Sign checksums
        shell: bash
        env:
          RELEASE_KEY: ${{ secrets.RELEASE_KEY }}
          version: ${{ needs.info.outputs.cli_version }}
        run: |
          set -u
          echo "$RELEASE_KEY" > release.key
          set -x
          for algo in B3 SHA512; do
            echo | rsign sign \
              -p .github/workflows/release.pub \
              -s release.key \
              -t "watchexec v$version signed with automated key" \
              -c 'see website for signing information' \
              -x "${algo}SUMS.auto.minisig" \
              "${algo}SUMS"
          done
          rm release.key
          cat {B3,SHA512}SUMS.auto.minisig

      - uses: softprops/action-gh-release@50195ba7f6f93d1ac97ba8332a178e008ad176aa
        with:
          tag_name: cli-v${{ needs.info.outputs.cli_version }}
          name: CLI v${{ needs.info.outputs.cli_version }}
          body: ${{ needs.info.outputs.release_notes }}
          append_body: true
          discussion_category_name: ${{ needs.info.outputs.announce }}
          files: |
            watchexec-*.tar.xz
            watchexec-*.tar.zst
            watchexec-*.deb
            watchexec-*.rpm
            watchexec-*.zip
            *SUMS*
        env:
          GITHUB_TOKEN: ${{ secrets.GITHUB_TOKEN }}