nightly.yml

name: Nightly build

on:
  workflow_dispatch: {}
  schedule:
    - cron: '0 0 * * *'
    
jobs:
  check_changes:
    runs-on: ubuntu-latest
    name: Check latest commit
    outputs:
      should_run: ${{steps.should_run.outputs.should_run}}
    steps:
      - uses: actions/checkout@v2
      - name: print latest_commit
        run: echo ${{github.sha}}
      - id: should_run
        continue-on-error: true
        name: check latest commit is less than a day
        if: ${{ github.event_name == 'schedule' }}
        run: test -z $(git rev-list --after="24 hours" ${{github.sha}}) && echo "::set-output name=should_run::false"

  optimize:
    name: PGO Build
    strategy:
      matrix:
        os: [ 
              { os: ubuntu-latest, arch: x86_64-unknown-linux-gnu }, 
              { os: macos-latest, arch: aarch64-apple-darwin },
              { os: windows-latest, arch: x86_64-pc-windows-msvc }
            ]
    needs: check_changes
    if: ${{needs.check_changes.outputs.should_run != 'false'}}
    runs-on: ${{ matrix.os.os }}
    defaults:
      run:
        shell: bash
    steps:
      - name: Checkout repository
        uses: actions/checkout@v2

      - name: Install Rust toolchain
        uses: actions-rs/toolchain@v1
        with:
          toolchain: stable
          profile: minimal
          override: true
          components: llvm-tools-preview

      - name: Set the STEEL_HOME environment variable
        run: echo STEEL_HOME=${PWD}/.steel-sync >> $GITHUB_ENV 
        
      - name: Install cargo-pgo
        run: cargo install cargo-pgo

      - uses: Swatinem/rust-cache@v2
        with:
          shared-key: "build"

      - name: Build instrumented binary
        # Use `cargo pgo build -- --bin foo` if you have multiple binaries
        run: cargo pgo build
        
      - name: install steel dylib installer
        env:
          STEEL_HOME: ${{ env.STEEL_HOME }}
        run: mkdir -p $STEEL_HOME/native && cd crates/cargo-steel-lib && cargo install --path .

      - name: Install cogs
        env:
          STEEL_HOME: ${{ env.STEEL_HOME }}
        run: |
          echo $STEEL_HOME
          mkdir -p .steel/cogs
          cd cogs/
          cargo run -- install.scm

      - name: Gather PGO profiles
        env:
          STEEL_HOME: ${{ env.STEEL_HOME }}
        run: |
          ./target/${{ matrix.os.arch }}/release/steel r7rs-benchmarks/scheme.scm
          ./target/${{ matrix.os.arch }}/release/steel r7rs-benchmarks/simplex.scm
          ./target/${{ matrix.os.arch }}/release/steel r7rs-benchmarks/array1.scm
          ./target/${{ matrix.os.arch }}/release/steel r7rs-benchmarks/triangl.scm
          ./target/${{ matrix.os.arch }}/release/steel benchmarks/fib/fib.scm

      - name: Build optimized binary
        run: cargo pgo optimize

      - name: Archive pgo optimized binary
        if: ${{ runner.os != 'windows' }}
        uses: actions/upload-artifact@v4
        with:
          name: pgo-nightly-build-${{ matrix.os.arch }}
          path: ${{ github.workspace }}/target/${{ matrix.os.arch }}/release/steel
          retention-days: 30

      - name: Archive pgo optimized binary (windows)
        if: ${{ runner.os == 'windows' }}
        uses: actions/upload-artifact@v4
        with:
          name: pgo-nightly-build-${{ matrix.os.arch }}
          path: target\${{ matrix.os.arch }}\release\steel.exe
          retention-days: 30