release.yml

name: Create Release Asset

on:
  schedule:
    - cron: "0 0 * * 0" # weekly
  workflow_dispatch:
  push:
    tags:
      'v*'

jobs:
  prepare_env:
    name: Prepare build version
    runs-on: ubuntu-latest
    steps:
      - uses: actions/checkout@v2
      - name: Get latest release
        continue-on-error: true
        id: cur_release
        uses: pozetroninc/github-action-get-latest-release@master
        with:
          repository: ${{ github.repository }}
          excludes: draft
      - name: Set outputs
        id: vars
        run: |
          tag=${GITHUB_REF#refs/tags/*}
          sha=$(git rev-parse --short HEAD)
          version=$([[ $tag == v* ]] && echo ${tag:1} || echo 0.0.$sha)
          cur_ver=$([[ ${{ steps.cur_release.outcome }} == failure ]] && echo v0 || echo ${{ steps.cur_release.outputs.release }})
          [[ v$version == $cur_ver ]] && exit 1
          prerelease=$([[ $tag == v* ]] && echo false || echo true)
          rust_cache=${{ hashFiles('**/rust-toolchain', '**/Cargo.lock') }}
          echo "version=$version" >> $GITHUB_ENV
          echo "arch=$(dpkg-architecture -q DEB_BUILD_ARCH)" >> $GITHUB_ENV
          echo "prerelease=$prerelease" >> $GITHUB_ENV
          echo "rust_cache=$rust_cache" >> $GITHUB_ENV
          echo "rust_toolchain=$(cat rust-toolchain)" >> $GITHUB_ENV
    outputs:
      version: ${{ env.version }}
      arch: ${{ env.arch }}
      prerelease: ${{ env.prerelease }}
      rust_cache: ${{ env.rust_cache }}
      rust_toolchain: ${{ env.rust_toolchain }}

  build:
    needs: prepare_env
    name: Build and release
    runs-on: ubuntu-latest
    strategy:
      fail-fast: false
      matrix:
        build: [general, webrender]
    env:
      GITHUB_TOKEN: ${{ secrets.GITHUB_TOKEN }}
      CARGO_INCREMENTAL: 0
    steps:
      - uses: actions/checkout@v2
      - name: rust setup
        id: rust-setup
        run: |
          rustup install $(cat rust-toolchain)
          rustup component add rustfmt-preview
      - name: Cache rust
        uses: actions/cache@v2
        with:
          path: |
            ~/.cargo/registry
            ~/.cargo/git
            ./target
          key: ${{ runner.os }}-${{ matrix.build }}-cargo-${{ needs.prepare_env.outputs.rust_cache }}
          restore-keys: |
            ${{ runner.os }}-${{ matrix.build }}-cargo
      - name: Build project
        if: ${{ matrix.build == 'general' }}
        run: |
          version=${{ needs.prepare_env.outputs.version }}
          bin_version=$version
          echo "version=$version" >> $GITHUB_ENV
          echo "bin_version=$bin_version" >> $GITHUB_ENV
          ./build_emacs_ng.sh $bin_version
      - name: Build project with webrender
        if: ${{ matrix.build == 'webrender' }}
        run: |
          version=${{ needs.prepare_env.outputs.version }}
          bin_version=$version.webrender
          echo "version=$version" >> $GITHUB_ENV
          echo "bin_version=$bin_version" >> $GITHUB_ENV
          ./build_emacs_ng.sh $bin_version --with-webrender --with-winit
      - name: Reduce cache
        continue-on-error: true
        run: |
          ## Reduce Cache
          # https://bheisler.github.io/post/efficient-use-of-travis-ci-cache-for-rust/
          # Delete loose files in the release/debug directory
          sudo find ./target/release -maxdepth 1 -type f -delete
          # Delete just meta data
          sudo rm -f  ./target/.rustc_info.json
          # Also delete cargo's registry index. This is updated on every build, but it's
          # way cheaper to re-download than the whole cache is.
          sudo rm -rf ~/.cargo/registry/index/
      - name: Get release
        id: get_release_by_tag
        uses: jonfriesen/get-release-by-tag@v0.0.11
        with:
          tag_name: v${{ env.version }}
        continue-on-error: true
      - name: Do Release
        if: steps.get_release_by_tag.outcome == 'failure'
        id: do_release
        uses: ncipollo/release-action@v1
        with:
          tag: v${{ env.version }}
          name: emacs-ng_${{ env.version }}
          draft: false
          prerelease: ${{ needs.prepare_env.outputs.prerelease }}
          artifactErrorsFailBuild: true
          artifacts: ./emacs-ng_${{ env.bin_version }}_${{ needs.prepare_env.outputs.arch }}.deb
          artifactContentType: application/vnd.debian.binary-package
          token: ${{ secrets.GITHUB_TOKEN }}
      - name: Do upload to release
        if: steps.get_release_by_tag.outcome == 'success'
        id: upload_release_asset
        uses: actions/upload-release-asset@v1
        with:
          upload_url: ${{ steps.get_release_by_tag.outputs.upload_url }}
          asset_path: ./emacs-ng_${{ env.bin_version }}_${{ needs.prepare_env.outputs.arch }}.deb
          asset_name: emacs-ng_${{ env.bin_version }}_${{ needs.prepare_env.outputs.arch }}.deb
          asset_content_type: application/vnd.debian.binary-package