upload_buck2.yml

name: Build, upload, and tag `buck2`

on:
  workflow_dispatch:
  push:
    branches:
      - main

jobs:
  build:
    strategy:
      fail-fast: false
      matrix:
        target:
          - os: 'ubuntu-24.04-arm'
            triple: 'aarch64-unknown-linux-gnu'
          - os: 'ubuntu-24.04-arm'
            triple: 'aarch64-unknown-linux-musl'
          - os: 'ubuntu-24.04'
            triple: 'x86_64-unknown-linux-gnu'
          - os: 'ubuntu-24.04'
            triple: 'x86_64-unknown-linux-musl'
          - os: 'macos-13'
            triple: 'aarch64-apple-darwin'
            cross: true
          - os: 'macos-13'
            triple: 'x86_64-apple-darwin'
          - os: 'windows-2022'
            triple: 'x86_64-pc-windows-msvc'
            is_windows: true
    runs-on: ${{ matrix.target.os }}

    steps:
      - uses: actions/checkout@v4
        with:
          fetch-depth: 0
      - name: Install packages (Ubuntu)
        if: matrix.os == 'ubuntu-24.04' || matrix.os == 'ubuntu-24.04-arm'
        run: |
          sudo apt-get update
          sudo apt-get install -y --no-install-recommends xz-utils liblz4-tool musl-tools
      - uses: SebRollen/toml-action@v1.0.2
        id: read_rust_toolchain
        with:
          file: 'rust-toolchain'
          field: 'toolchain.channel'
      - uses: dtolnay/rust-toolchain@v1
        with:
          toolchain: ${{ steps.read_rust_toolchain.outputs.value }}
          targets: ${{ matrix.target.triple }}
      - uses: Swatinem/rust-cache@v2
        with:
          prefix-key: buck2-upload
          key: ${{ matrix.target.triple }}
      - uses: actions-rs/install@v0.1
        if: matrix.target.cross
        with:
          crate: cross
          version: latest
      - name: Set variables
        id: set_variables
        shell: bash
        run: |
          if [ -n "${{ matrix.target.is_windows }}" ]; then
            echo "buck2_out=target/${{ matrix.target.triple }}/release/buck2.exe" >> "$GITHUB_OUTPUT"
            echo "buck2_zst=artifacts/buck2-${{ matrix.target.triple }}.exe.zst" >> "$GITHUB_OUTPUT"
            echo "buck2_rust_project_out=target/${{ matrix.target.triple }}/release/rust-project.exe" >> "$GITHUB_OUTPUT"
            echo "buck2_rust_project_zst=artifacts/rust-project-${{ matrix.target.triple }}.exe.zst" >> "$GITHUB_OUTPUT"
          else
            echo "buck2_out=target/${{ matrix.target.triple }}/release/buck2" >> "$GITHUB_OUTPUT"
            echo "buck2_zst=artifacts/buck2-${{ matrix.target.triple }}.zst" >> "$GITHUB_OUTPUT"
            echo "buck2_rust_project_out=target/${{ matrix.target.triple }}/release/rust-project" >> "$GITHUB_OUTPUT"
            echo "buck2_rust_project_zst=artifacts/rust-project-${{ matrix.target.triple }}.zst" >> "$GITHUB_OUTPUT"
          fi
      - name: Build
        shell: bash
        env:
          RUSTFLAGS: "-C strip=debuginfo -C codegen-units=1"
        run: |
          # aarch64-linux builds need JEMALLOC_SYS_WITH_LG_PAGE=16
          # this is for e.g. linux running on apple silicon with native 16k pages
          if [[ "${{ matrix.target.triple }}" == aarch64-unknown-linux* ]]; then
            export JEMALLOC_SYS_WITH_LG_PAGE=16
          fi

          if [ -n "${{ matrix.target.cross }}" ]; then
            CARGO=cross
          else
            CARGO=cargo
          fi
          $CARGO build --release --bin buck2 --bin rust-project --target ${{ matrix.target.triple }}
      - name: Sanity check with examples/with_prelude
        if: ${{ !matrix.target.cross }}
        shell: bash
        run: |
          BUCK2="$(pwd)/${{ steps.set_variables.outputs.buck2_out }}"
          cd examples/with_prelude
          "$BUCK2" build //rust/... //cpp/... //python/... -v=2
      - name: Move binary to artifacts/
        shell: bash
        run: |
          mkdir artifacts
          zstd -z ${{ steps.set_variables.outputs.buck2_out }} -o ${{ steps.set_variables.outputs.buck2_zst }}
          zstd -z ${{ steps.set_variables.outputs.buck2_rust_project_out }} -o ${{ steps.set_variables.outputs.buck2_rust_project_zst }}
      - name: Upload
        uses: actions/upload-artifact@v4
        with:
          name: buck2-${{ matrix.target.triple }}
          path: artifacts/

  release_latest_snapshot:
    name: Release latest push snapshot
    needs:
      - build
    runs-on: ubuntu-latest
    permissions:
      contents: write
    steps:
      - name: Get snapshot tag (YYYYMMDD-HHMMSS)
        id: get_tag
        run: |
          TAG=snapshot-$(date +'%Y%m%d-%H%M%S')
          echo "tag_name=$TAG" >> "$GITHUB_OUTPUT"
          echo "Release tag: $TAG"
      - uses: actions/checkout@v3
        with:
          fetch-depth: 0
      - uses: ./.github/actions/publish_tag
        with:
          tag: "${{ steps.get_tag.outputs.tag_name }}"
          github_token: ${{ secrets.GITHUB_TOKEN }}
      - uses: facebook/dotslash-publish-release@v1
        env:
          GITHUB_TOKEN: ${{ secrets.GITHUB_TOKEN }}
        with:
          config: .github/dotslash-config.json
          tag: "${{ steps.get_tag.outputs.tag_name }}"