ci.yml

name: redis-cell CI

on:
  pull_request:
  push:
  schedule:
    # Weekly.
    - cron: "0 0 * * 0"

jobs:
  #
  # BUILD JOBS
  #

  build:
    runs-on: ubuntu-latest
    strategy:
      matrix:
        rust_toolchain:
          - stable
          - nightly
    timeout-minutes: 5

    steps:
      - name: "Checkout"
        uses: actions/checkout@v2

      - name: "Cache: Cargo registry"
        uses: actions/cache@v1
        with:
          path: ~/.cargo/registry
          key: ${{ runner.os }}-cargo-registry-${{ hashFiles('**/Cargo.lock') }}

      - name: "Cache: Cargo index"
        uses: actions/cache@v1
        with:
          path: ~/.cargo/git
          key: ${{ runner.os }}-cargo-index-${{ hashFiles('**/Cargo.lock') }}

      - name: "Cache: Cargo build"
        uses: actions/cache@v1
        with:
          path: target
          key: ${{ runner.os }}-cargo-build-target-${{ hashFiles('**/Cargo.lock') }}

      - name: "Install: Rust toolchain"
        uses: actions-rs/toolchain@v1
        with:
          components: clippy, rustfmt
          override: true
          profile: minimal
          toolchain: ${{ matrix.rust_toolchain }}

      - name: "Cargo: Check"
        uses: actions-rs/cargo@v1
        with:
          command: check

      - name: "Cargo: Build"
        uses: actions-rs/cargo@v1
        with:
          command: build

      - name: "Cargo: Test"
        uses: actions-rs/cargo@v1
        with:
          command: test

      - name: "Check: Clippy"
        uses: actions-rs/cargo@v1
        with:
          command: clippy
          args: -- -D warnings

      - name: "Check: Rustfmt"
        uses: actions-rs/cargo@v1
        with:
          command: fmt
          args: --all -- --check

  #
  # RELEASE JOBS
  #
  # Note that releases are only pushed on `vX.X.X` tags, and those releases are
  # only *drafts*. We still expect someone to go in and manually edit the title
  # description to give the final product a more human touch.
  #

  # This is pretty insane, but unfortunately a side effect inherent to the
  # design/misdesign of GitHub Actions:
  #
  # We want to publish a number of different build artifacts (one per
  # architecture), but any use of the `actions/create-release` action cuts a
  # brand new release instead of reusing an existing one. To work around the
  # problem, we cut the release in this separate job. Unfortunately, because
  # outputs cannot be shared across jobs, that prevents other jobs from
  # accessing the upload URL, which is need to publish artifacts.
  #
  # The workaround is to put the upload URL in a file and publish that as an
  # artifact. Other jobs then download it, export it to other steps, and
  # publish artifacts independently.
  release_create:
    if: contains(github.ref, 'tags/v')
    runs-on: ubuntu-latest

    steps:
      - name: "Create release"
        id: create_release
        uses: actions/create-release@v1
        env:
          GITHUB_TOKEN: ${{ secrets.GITHUB_TOKEN }}
        with:
          draft: true
          release_name: "${{ github.ref }}"
          tag_name: ${{ github.ref }}

      - name: "Save release URL to file"
        run: echo "${{ steps.create_release.outputs.upload_url }}" > release_url.txt

      - name: "Upload release URL file"
        uses: actions/upload-artifact@v1
        with:
          name: release_url
          path: release_url.txt

  release_linux:
    if: contains(github.ref, 'tags/v')
    needs:
      - build
      - release_create
    runs-on: ubuntu-latest
    strategy:
      matrix:
        target:
          - aarch64-unknown-linux-gnu
          - armv7-unknown-linux-gnueabihf
          - x86_64-unknown-linux-gnu
    timeout-minutes: 5

    steps:
      - name: "Checkout"
        uses: actions/checkout@v2

      - name: "Cache: Cargo registry"
        uses: actions/cache@v1
        with:
          path: ~/.cargo/registry
          key: ${{ runner.os }}-cargo-registry-${{ hashFiles('**/Cargo.lock') }}

      - name: "Cache: Cargo index"
        uses: actions/cache@v1
        with:
          path: ~/.cargo/git
          key: ${{ runner.os }}-cargo-index-${{ hashFiles('**/Cargo.lock') }}

      - name: "Cache: Cargo build"
        uses: actions/cache@v1
        with:
          path: target
          key: ${{ runner.os }}-cargo-build-target-${{ hashFiles('**/Cargo.lock') }}

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

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

      - name: "Download release URL file"
        uses: actions/download-artifact@v1
        with:
          name: release_url

      - name: "Get release info"
        id: get_release_info
        run: |
          echo ::set-output name=file_name::${REPOSITORY_NAME##*/}-${TAG_REF_NAME##*/}-${{ matrix.target }}.tar.gz # RepositoryName-v1.0.0-arch.tar.gz

          value=`cat release_url/release_url.txt`
          echo ::set-output name=upload_url::$value
        env:
          REPOSITORY_NAME: ${{ github.repository }}
          TAG_REF_NAME: ${{ github.ref }}

      - name: "Create release bundle"
        run: |
          main() {
            local src=$(pwd)
            local stage=$(mktemp -d)
            echo $stage

            cp target/${{ matrix.target }}/release/libredis_cell.* $stage/
            cd $stage
            tar czf $src/${{ steps.get_release_info.outputs.file_name }} *

            cd $src
            rm -rf $stage
          }
          main

      - name: "Upload release asset"
        uses: actions/upload-release-asset@v1
        env:
          GITHUB_TOKEN: ${{ secrets.GITHUB_TOKEN }}
        with:
          asset_content_type: application/zip
          asset_name: ${{ steps.get_release_info.outputs.file_name }}
          asset_path: ./${{ steps.get_release_info.outputs.file_name }}
          upload_url: ${{ steps.get_release_info.outputs.upload_url }}

  # A separate release step for Mac OS. Technically this seems like something
  # that might fit into a build matrix, but in practice the architecture
  # targets for Mac OS versus Ubuntu are completing exclusive, so the exclude
  # list would be huge. Unfortunately this results in more copy + paste, but so
  # it is.
  release_macos:
    if: contains(github.ref, 'tags/v')
    needs:
      - build
      - release_create
    runs-on: macos-latest
    strategy:
      matrix:
        target:
          - x86_64-apple-darwin
    timeout-minutes: 5

    steps:
      - name: "Checkout"
        uses: actions/checkout@v2

      - name: "Cache: Cargo registry"
        uses: actions/cache@v1
        with:
          path: ~/.cargo/registry
          key: ${{ runner.os }}-cargo-registry-${{ hashFiles('**/Cargo.lock') }}

      - name: "Cache: Cargo index"
        uses: actions/cache@v1
        with:
          path: ~/.cargo/git
          key: ${{ runner.os }}-cargo-index-${{ hashFiles('**/Cargo.lock') }}

      - name: "Cache: Cargo build"
        uses: actions/cache@v1
        with:
          path: target
          key: ${{ runner.os }}-cargo-build-target-${{ hashFiles('**/Cargo.lock') }}

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

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

      - name: "Download release URL file"
        uses: actions/download-artifact@v1
        with:
          name: release_url

      - name: "Get release info"
        id: get_release_info
        run: |
          echo ::set-output name=file_name::${REPOSITORY_NAME##*/}-${TAG_REF_NAME##*/}-${{ matrix.target }}.tar.gz # RepositoryName-v1.0.0-arch.tar.gz

          value=`cat release_url/release_url.txt`
          echo ::set-output name=upload_url::$value
        env:
          REPOSITORY_NAME: ${{ github.repository }}
          TAG_REF_NAME: ${{ github.ref }}

      - name: "Create release bundle"
        run: |
          main() {
            local src=$(pwd)
            local stage=$(mktemp -d)
            echo $stage

            cp target/${{ matrix.target }}/release/libredis_cell.* $stage/
            cd $stage
            tar czf $src/${{ steps.get_release_info.outputs.file_name }} *

            cd $src
            rm -rf $stage
          }
          main

      - name: "Upload release asset"
        uses: actions/upload-release-asset@v1
        env:
          GITHUB_TOKEN: ${{ secrets.GITHUB_TOKEN }}
        with:
          asset_content_type: application/zip
          asset_name: ${{ steps.get_release_info.outputs.file_name }}
          asset_path: ./${{ steps.get_release_info.outputs.file_name }}
          upload_url: ${{ steps.get_release_info.outputs.upload_url }}