name: Release
on:
  push:
    tags:
    - '[0-9]+.[0-9]+'
    - '[0-9]+.[0-9]+.[0-9]+'

jobs:
  fetch-grammars:
    name: Fetch Grammars
    runs-on: ubuntu-latest
    steps:
      - name: Checkout sources
        uses: actions/checkout@v3

      - name: Install stable toolchain
        uses: actions-rs/toolchain@v1
        with:
          profile: minimal
          toolchain: stable
          override: true

      - name: Cache cargo registry
        uses: actions/cache@v3
        with:
          path: ~/.cargo/registry
          key: ${{ runner.os }}-v2-cargo-registry-${{ hashFiles('**/Cargo.lock') }}
          restore-keys: ${{ runner.os }}-v2-cargo-registry-

      - name: Cache cargo index
        uses: actions/cache@v3
        with:
          path: ~/.cargo/git
          key: ${{ runner.os }}-v2-cargo-index-${{ hashFiles('**/Cargo.lock') }}
          restore-keys: ${{ runner.os }}-v2-cargo-index-

      - name: Cache cargo target dir
        uses: actions/cache@v3
        with:
          path: target
          key: ${{ runner.os }}-v2-cargo-build-target-${{ hashFiles('**/Cargo.lock') }}
          restore-keys: ${{ runner.os }}-v2-cargo-build-target-

      - name: Fetch tree-sitter grammars
        uses: actions-rs/cargo@v1
        env:
          HELIX_DISABLE_AUTO_GRAMMAR_BUILD: yes
        with:
          command: run
          args: -- --grammar fetch

      - name: Bundle grammars
        run: tar cJf grammars.tar.xz -C runtime/grammars/sources .

      - uses: actions/upload-artifact@v3
        with:
          name: grammars
          path: grammars.tar.xz

  dist:
    name: Dist
    needs: [fetch-grammars]
    runs-on: ${{ matrix.os }}
    strategy:
      fail-fast: false # don't fail other jobs if one fails
      matrix:
        build: [x86_64-linux, x86_64-macos, x86_64-windows] #, x86_64-win-gnu, win32-msvc
        include:
        - build: x86_64-linux
          os: ubuntu-20.04
          rust: stable
          target: x86_64-unknown-linux-gnu
          cross: false
        # - build: aarch64-linux
        #   os: ubuntu-20.04
        #   rust: stable
        #   target: aarch64-unknown-linux-gnu
        #   cross: true
        - build: x86_64-macos
          os: macos-latest
          rust: stable
          target: x86_64-apple-darwin
          cross: false
        - build: x86_64-windows
          os: windows-2019
          rust: stable
          target: x86_64-pc-windows-msvc
          cross: false
        # - build: aarch64-macos
        #   os: macos-latest
        #   rust: stable
        #   target: aarch64-apple-darwin
        # - build: x86_64-win-gnu
        #   os: windows-2019
        #   rust: stable-x86_64-gnu
        #   target: x86_64-pc-windows-gnu
        # - build: win32-msvc
        #   os: windows-2019
        #   rust: stable
        #   target: i686-pc-windows-msvc

    steps:
      - name: Checkout sources
        uses: actions/checkout@v3

      - name: Download grammars
        uses: actions/download-artifact@v3

      - name: Move grammars under runtime
        if: "!startsWith(matrix.os, 'windows')"
        run: |
          mkdir -p runtime/grammars/sources
          tar xJf grammars/grammars.tar.xz -C runtime/grammars/sources

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

      - name: Run cargo test
        uses: actions-rs/cargo@v1
        with:
          use-cross: ${{ matrix.cross }}
          command: test
          args: --release --locked --target ${{ matrix.target }} --workspace

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

      - name: Strip release binary (linux and macos)
        if: matrix.build == 'x86_64-linux' || matrix.build == 'x86_64-macos'
        run: strip "target/${{ matrix.target }}/release/hx"

      - name: Strip release binary (arm)
        if: matrix.build == 'aarch64-linux'
        run: |
          docker run --rm -v \
            "$PWD/target:/target:Z" \
            rustembedded/cross:${{ matrix.target }} \
            aarch64-linux-gnu-strip \
            /target/${{ matrix.target }}/release/hx

      - name: Build archive
        shell: bash
        run: |
          mkdir dist
          if [ "${{ matrix.os }}" = "windows-2019" ]; then
            cp "target/${{ matrix.target }}/release/hx.exe" "dist/"
          else
            cp "target/${{ matrix.target }}/release/hx" "dist/"
          fi
          rm -rf runtime/grammars/sources
          cp -r runtime dist

      - uses: actions/upload-artifact@v3
        with:
          name: bins-${{ matrix.build }}
          path: dist

  publish:
    name: Publish
    needs: [dist]
    runs-on: ubuntu-latest
    steps:
      - name: Checkout sources
        uses: actions/checkout@v3

      - uses: actions/download-artifact@v3

      - name: Calculate tag name
        run: |
          name=dev
          if [[ $GITHUB_REF == refs/tags/* ]]; then
            name=${GITHUB_REF:10}
          fi
          echo ::set-output name=val::$name
          echo TAG=$name >> $GITHUB_ENV
        id: tagname

      - name: Build archive
        shell: bash
        run: |
          set -ex

          source="$(pwd)"
          mkdir -p runtime/grammars/sources
          tar xJf grammars/grammars.tar.xz -C runtime/grammars/sources
          rm -rf grammars

          cd "$(mktemp -d)"
          mv $source/bins-* .
          mkdir dist

          for dir in bins-* ; do
              platform=${dir#"bins-"}
              if [[ $platform =~ "windows" ]]; then
                  exe=".exe"
              fi
              pkgname=helix-$TAG-$platform
              mkdir $pkgname
              cp $source/LICENSE $source/README.md $pkgname
              mv bins-$platform/runtime $pkgname/
              mv bins-$platform/hx$exe $pkgname
              chmod +x $pkgname/hx$exe

              if [ "$exe" = "" ]; then
                  tar cJf dist/$pkgname.tar.xz $pkgname
              else
                  7z a -r dist/$pkgname.zip $pkgname
              fi
          done

          tar cJf dist/helix-$TAG-source.tar.xz -C $source .
          mv dist $source/

      - name: Upload binaries to release
        uses: svenstaro/upload-release-action@v2
        with:
          repo_token: ${{ secrets.GITHUB_TOKEN }}
          file: dist/*
          file_glob: true
          tag: ${{ steps.tagname.outputs.val }}
          overwrite: true