release.yml

name: Release suite
on:
  push:
    tags:
      - v*
concurrency:
  group: ${{ github.workflow }}-${{ github.ref }}
  cancel-in-progress: true
jobs:
  extract-version:
    runs-on: ubuntu-latest
    steps:
      - name: Extract version
        run: echo "VERSION=$(echo ${GITHUB_REF#refs/tags/})" >> $GITHUB_OUTPUT
        id: extract_version
    outputs:
      VERSION: ${{ steps.extract_version.outputs.VERSION }}
  build:
    name: Build Release
    strategy:
      matrix:
        arch: [x86_64-unknown-linux-gnu, x86_64-apple-darwin]
        include:
          - arch: x86_64-unknown-linux-gnu
            platform: ubuntu-latest
          - arch: x86_64-apple-darwin
            platform: macos-latest
    runs-on: ${{ matrix.platform }}
    needs: extract-version
    steps:
      - name: Checkout sources
        uses: actions/checkout@v4
      - name: Read toolchain file
        id: rust-toolchain
        run: |
          RUST_TOOLCHAIN=$(grep 'channel' rust-toolchain.toml | awk '{split($0,a," = "); print a[2]}' | tr -d '"')
          echo "RUST_TOOLCHAIN=$RUST_TOOLCHAIN" >> $GITHUB_OUTPUT
        shell: bash
      - name: Install toolchain
        uses: dtolnay/rust-toolchain@master
        with:
          toolchain: ${{ steps.rust-toolchain.outputs.RUST_TOOLCHAIN }}
      # ==============================
      #       Build
      # ==============================
      - name: Build mev-rs
        run: |
          cargo install --profile maxperf --path bin/mev --locked
          mkdir artifacts
          mv ~/.cargo/bin/mev ./artifacts
          cd artifacts
          tar -czf mev-rs-${{ needs.extract-version.outputs.VERSION }}-${{ matrix.arch }}.tar.gz mev
          mv *tar.gz* ..
      # =======================================================================
      # Upload artifacts
      # This is required to share artifacts between different jobs
      # =======================================================================
      - name: Upload artifact
        uses: actions/upload-artifact@v4
        with:
          name: mev-rs-${{ needs.extract-version.outputs.VERSION }}-${{ matrix.arch }}.tar.gz
          path: mev-rs-${{ needs.extract-version.outputs.VERSION }}-${{ matrix.arch }}.tar.gz
          compression-level: 0
  draft-release:
    name: Draft Release
    needs: [build, extract-version]
    runs-on: ubuntu-latest
    env:
      VERSION: ${{ needs.extract-version.outputs.VERSION }}
    steps:
      # This is necessary for generating the changelog. It has to come before "Download Artifacts" or else it deletes the artifacts.
      - name: Checkout sources
        uses: actions/checkout@v4
        with:
          fetch-depth: 0
      # ==============================
      #       Download artifacts
      # ==============================
      - name: Download artifacts
        uses: actions/download-artifact@v4
      # ==============================
      #       Create release draft
      # ==============================
      - name: Generate Full Changelog
        id: changelog
        run: |
          echo "CHANGELOG<<EOF" >> $GITHUB_OUTPUT
          echo "$(git log --pretty=format:"- %s" $(git describe --tags --abbrev=0 ${{ env.VERSION }}^)..${{ env.VERSION }})" >> $GITHUB_OUTPUT
          echo "EOF" >> $GITHUB_OUTPUT
      - name: Create Release Draft
        env:
          GITHUB_USER: ${{ github.repository_owner }}
          GITHUB_TOKEN: ${{ secrets.GITHUB_TOKEN }}
        # The formatting here is adapted from OpenEthereum: https://github.com/openethereum/openethereum/blob/main/.github/workflows/build.yml
        run: |
          body=$(cat <<- "ENDBODY"
          ${{ env.VERSION }}

          ## Changelog

          ${{ steps.changelog.outputs.CHANGELOG }}

          ## Binaries

          | System | Architecture | Binary |
          |:---:|:---:|:---:|
          | <img src="https://simpleicons.org/icons/apple.svg" style="width: 32px;"/> | x86_64 | [mev-rs-${{ env.VERSION }}-x86_64-apple-darwin.tar.gz](https://github.com/${{ env.REPO_NAME }}/releases/download/${{ env.VERSION }}/mev-rs-${{ env.VERSION }}-x86_64-apple-darwin.tar.gz) |
          | <img src="https://simpleicons.org/icons/linux.svg" style="width: 32px;"/> | x86_64 | [mev-rs-${{ env.VERSION }}-x86_64-unknown-linux-gnu.tar.gz](https://github.com/${{ env.REPO_NAME }}/releases/download/${{ env.VERSION }}/mev-rs-${{ env.VERSION }}-x86_64-unknown-linux-gnu.tar.gz) |

          ENDBODY
          )
          assets=(./mev-rs-*.tar.gz*/mev-rs-*.tar.gz*)
          tag_name="${{ env.VERSION }}"
          echo "$body" | gh release create --draft -F "-" "$tag_name" "${assets[@]}"