name: Release

on:
  push:
    tags:
      - v[0-9]+.[0-9]+.[0-9]+
      - v[0-9]+.[0-9]+.[0-9]+-**

jobs:
  macos:
    name: "Build release on MacOS"
    runs-on: macos-11.0
    if: startsWith(github.ref, 'refs/tags/')
    env:
      UPLOAD_NAME: macos
      X86_ARCH: x86_64-apple-darwin
      ARM_ARCH: aarch64-apple-darwin
      X86_DIR: target/x86_64-apple-darwin/release
      ARM_DIR: target/aarch64-apple-darwin/release
      BUILD_BIN: distant
      UNIVERSAL_REL_BIN: distant-macos
    steps:
      - uses: actions/checkout@v2
      - name: Install Rust (x86)
        uses: actions-rs/toolchain@v1
        with:
          profile: minimal
          toolchain: stable
          target: ${{ env.X86_ARCH }}
      - name: Install Rust (ARM)
        uses: actions-rs/toolchain@v1
        with:
          profile: minimal
          toolchain: stable
          target: ${{ env.ARM_ARCH }}
      - uses: Swatinem/rust-cache@v1
      - name: Build binary (x86_64)
        run: |
          cargo build --release --all-features --target ${{ env.X86_ARCH }}
          ls -l ./${{ env.X86_DIR }}
          strip ./${{ env.X86_DIR }}/${{ env.BUILD_BIN }}
      - name: Build binary (aarch64)
        run: |
          cargo build --release --all-features --target ${{ env.ARM_ARCH }}
          ls -l ./${{ env.ARM_DIR }}
          strip ./${{ env.ARM_DIR }}/${{ env.BUILD_BIN }}
      - name: Unify binaries
        run: |
          lipo -create -output ${{ env.UNIVERSAL_REL_BIN }} \
              ./${{ env.X86_DIR }}/${{ env.BUILD_BIN }} \
              ./${{ env.ARM_DIR }}/${{ env.BUILD_BIN }}
          chmod +x ./${{ env.UNIVERSAL_REL_BIN }}
      - name: Upload 
        uses: actions/upload-artifact@v2
        with:
          name: ${{ env.UPLOAD_NAME }}
          path: |
            ${{ env.UNIVERSAL_REL_BIN }}

  windows:
    name: "Build release on Windows"
    runs-on: windows-latest
    if: startsWith(github.ref, 'refs/tags/')
    env:
      UPLOAD_NAME: win64
      X86_ARCH: x86_64-pc-windows-msvc
      X86_DIR: target/x86_64-pc-windows-msvc/release
      BUILD_BIN: distant.exe
      X86_REL_BIN: distant-win64.exe
    steps:
      - uses: actions/checkout@v2
      - name: Install Rust (MSVC)
        uses: actions-rs/toolchain@v1
        with:
          profile: minimal
          toolchain: stable
          target: ${{ env.X86_ARCH }}
      - uses: Swatinem/rust-cache@v1
      - name: Build binary (x86_64)
        run: |
          cargo build --release --all-features --target ${{ env.X86_ARCH }}
          ls -l ./${{ env.X86_DIR }}
          strip ./${{ env.X86_DIR }}/${{ env.BUILD_BIN }}
          mv ./${{ env.X86_DIR }}/${{ env.BUILD_BIN }} ./${{ env.X86_REL_BIN }}
          chmod +x ./${{ env.X86_REL_BIN }}
      - name: Upload 
        uses: actions/upload-artifact@v2
        with:
          name: ${{ env.UPLOAD_NAME }}
          path: |
            ${{ env.X86_REL_BIN }}

  linux_gnu:
    name: "Build release on Linux (gnu)"
    runs-on: ubuntu-latest
    if: startsWith(github.ref, 'refs/tags/')
    env:
      UPLOAD_NAME: linux64-gnu
      X86_GNU_ARCH: x86_64-unknown-linux-gnu
      X86_GNU_DIR: target/x86_64-unknown-linux-gnu/release
      BUILD_BIN: distant
      X86_GNU_REL_BIN: distant-linux64-gnu
    steps:
      - uses: actions/checkout@v2
      - name: Install Rust (GNU)
        uses: actions-rs/toolchain@v1
        with:
          profile: minimal
          toolchain: stable
          target: ${{ env.X86_GNU_ARCH }}
      - uses: Swatinem/rust-cache@v1
      - name: Build binary (GNU x86_64)
        run: |
          cargo build --release --all-features --target ${{ env.X86_GNU_ARCH }}
          ls -l ./${{ env.X86_GNU_DIR }}
          strip ./${{ env.X86_GNU_DIR }}/${{ env.BUILD_BIN }}
          mv ./${{ env.X86_GNU_DIR }}/${{ env.BUILD_BIN }} ./${{ env.X86_GNU_REL_BIN }}
          chmod +x ./${{ env.X86_GNU_REL_BIN }}
      - name: Upload 
        uses: actions/upload-artifact@v2
        with:
          name: ${{ env.UPLOAD_NAME }}
          path: |
            ${{ env.X86_GNU_REL_BIN }}

  # NOTE: For musl, we only support ssh2 and not libssh for the time being due to some
  #       build issue with libssh-rs-sys not finding the symbol ENGINE_cleanup in libcrypto
  linux_musl:
    name: "Build release on Linux (musl)"
    runs-on: ubuntu-latest
    container:
      image: alpine:3.14
    if: startsWith(github.ref, 'refs/tags/')
    env:
      UPLOAD_NAME: linux64-musl
      X86_MUSL_ARCH: x86_64-unknown-linux-musl
      X86_MUSL_DIR: target/x86_64-unknown-linux-musl/release
      BUILD_BIN: distant
      X86_MUSL_REL_BIN: distant-linux64-musl
    steps:
      - uses: actions/checkout@v2
      - name: Install base dependencies
        run: |
          apk add --update --no-cache build-base libc6-compat curl perl
      - name: Install Rust (MUSL)
        run: |
          curl https://sh.rustup.rs -sSf | sh -s -- -y --profile minimal
      - uses: Swatinem/rust-cache@v1
      - name: Build binary (MUSL x86_64)
        run: |
          source $HOME/.cargo/env
          cargo build --release --no-default-features --features ssh2 --target ${{ env.X86_MUSL_ARCH }}
          ls -l ./${{ env.X86_MUSL_DIR }}
          strip ./${{ env.X86_MUSL_DIR }}/${{ env.BUILD_BIN }}
          mv ./${{ env.X86_MUSL_DIR }}/${{ env.BUILD_BIN }} ./${{ env.X86_MUSL_REL_BIN }}
          chmod +x ./${{ env.X86_MUSL_REL_BIN }}
      - name: Upload 
        uses: actions/upload-artifact@v2
        with:
          name: ${{ env.UPLOAD_NAME }}
          path: |
            ${{ env.X86_MUSL_REL_BIN }}

  publish:
    needs: [macos, windows, linux_gnu, linux_musl]
    runs-on: ubuntu-latest
    if: startsWith(github.ref, 'refs/tags/')
    permissions:
      contents: write
    env:
      MACOS: macos
      MACOS_UNIVERSAL_BIN: distant-macos
      WIN64: win64
      WIN64_BIN: distant-win64.exe
      LINUX64_GNU: linux64-gnu
      LINUX64_GNU_BIN: distant-linux64-gnu
      LINUX64_MUSL: linux64-musl
      LINUX64_MUSL_BIN: distant-linux64-musl
    steps:
      - uses: actions/checkout@v2
      - uses: actions/download-artifact@v2
      - name: Generate MacOS SHA256 checksums
        run: |
          cd ${{ env.MACOS }}
          sha256sum ${{ env.MACOS_UNIVERSAL_BIN }} > ${{ env.MACOS_UNIVERSAL_BIN }}.sha256sum
          echo "SHA_MACOS_BIN=$(cat ${{ env.MACOS_UNIVERSAL_BIN }}.sha256sum)" >> $GITHUB_ENV
      - name: Generate Win64 SHA256 checksums
        run: |
          cd ${{ env.WIN64 }}
          sha256sum ${{ env.WIN64_BIN }} > ${{ env.WIN64_BIN }}.sha256sum
          echo "SHA_WIN64_BIN=$(cat ${{ env.WIN64_BIN }}.sha256sum)" >> $GITHUB_ENV
      - name: Generate Linux64 (gnu) SHA256 checksums
        run: |
          cd ${{ env.LINUX64_GNU }}
          sha256sum ${{ env.LINUX64_GNU_BIN }} > ${{ env.LINUX64_GNU_BIN }}.sha256sum
          echo "SHA_LINUX64_GNU_BIN=$(cat ${{ env.LINUX64_GNU_BIN }}.sha256sum)" >> $GITHUB_ENV
      - name: Generate Linux64 (musl) SHA256 checksums
        run: |
          cd ${{ env.LINUX64_MUSL }}
          sha256sum ${{ env.LINUX64_MUSL_BIN }} > ${{ env.LINUX64_MUSL_BIN }}.sha256sum
          echo "SHA_LINUX64_MUSL_BIN=$(cat ${{ env.LINUX64_MUSL_BIN }}.sha256sum)" >> $GITHUB_ENV
      - name: Determine git tag
        if: github.event_name == 'push'
        run: |
          TAG_NAME=${{ github.ref }}
          echo "TAG_NAME=${TAG_NAME#refs/tags/}" >> $GITHUB_ENV
          echo "TAG_VERSION=${TAG_NAME#refs/tags/v}" >> $GITHUB_ENV
      - name: Check git tag for pre-release
        id: check-tag
        run: |
          if [[ ${{ github.ref }} =~ ^refs/tags/v[0-9]+\.[0-9]+\.[0-9]+-.*$ ]]; then
              echo ::set-output name=match::true
          fi
      - name: Print pre-release status
        run: |
          echo "Is ${{ github.ref }} a pre-release: ${{ steps.check-tag.outputs.match }}"
      - name: Get Changelog Entry
        id: changelog
        uses: mindsers/changelog-reader-action@v2
        with:
          version: ${{ env.TAG_VERSION }}
          path: "./CHANGELOG.md"
      - name: Publish
        uses: softprops/action-gh-release@v1
        with:
          name: distant ${{ env.TAG_NAME }}
          fail_on_unmatched_files: true
          target_commitish: ${{ github.sha }}
          draft: false
          prerelease: ${{ steps.check-tag.outputs.match == 'true' }}
          files: |
            ${{ env.MACOS }}/${{ env.MACOS_UNIVERSAL_BIN }}
            ${{ env.WIN64 }}/${{ env.WIN64_BIN }}
            ${{ env.LINUX64_GNU }}/${{ env.LINUX64_GNU_BIN }}
            ${{ env.LINUX64_MUSL }}/${{ env.LINUX64_MUSL_BIN }}
            **/*.sha256sum
          body: |
            ## Release Notes
            ${{ steps.changelog.outputs.changes }}
            ## Binaries
            Standalone binaries are built out for Windows (x86_64), MacOS (Intel & ARM), and Linux (x86_64).
            - **linux64-gnu** is the x86-64 release on Linux using libc
            - **linux64-musl** is the x86-64 release on Linux using musl (static binary, no libc dependency)
            - **macos** is a universal binary for Mac OS that supports x86-64 and aarch64 (arm) platforms
            - **win64** is the x86-64 release on Windows using MSVC
            ## SHA256 Checksums
            ```
            ${{ env.SHA_MACOS_BIN }}
            ${{ env.SHA_WIN64_BIN }}
            ${{ env.SHA_LINUX64_GNU_BIN }}
            ${{ env.SHA_LINUX64_MUSL_BIN }}
            ```