donutbrowser/.github/workflows/lint-rs.yml

# Installs Rust and checks formatting + linting, then runs the full test suite

name: Lint Rust

# Pull requests reach this through pr-checks.yml and tags through release.yml.
# Both used to trigger it directly as well, so it ran twice for each of them.
on:
  workflow_call: {}
  push:
    branches:
      - main

permissions:
  contents: read

concurrency:
  # A called workflow sees its caller's `github.workflow`, so the literal
  # prefix keeps this group apart from the caller's own. Only the standalone
  # push to main cancels a superseded run; Rolling Release runs one at a time.
  group: lint-rs-${{ github.workflow }}-${{ github.ref }}
  cancel-in-progress: ${{ github.event_name == 'push' && github.ref == 'refs/heads/main' }}

env:
  CARGO_TERM_COLOR: always
  # Clippy and the tests never need debug info. Without it the target
  # directory the cache carries is several times smaller and links are faster.
  CARGO_PROFILE_DEV_DEBUG: "0"
  CARGO_PROFILE_TEST_DEBUG: "0"

jobs:
  build:
    strategy:
      fail-fast: false
      matrix:
        os: [macos-latest, ubuntu-22.04, windows-latest]

    runs-on: ${{ matrix.os }}
    timeout-minutes: 90

    steps:
      - name: Disable git core.autocrlf on Windows
        if: matrix.os == 'windows-latest'
        run: git config --global core.autocrlf false

      - name: Checkout repository code
        uses: actions/checkout@3d3c42e5aac5ba805825da76410c181273ba90b1 #v7.0.1
        with:
          persist-credentials: false

      - name: Set up pnpm package manager
        uses: pnpm/action-setup@ea17c68df8912ef543352723c149a84f56e3d413 #v6.1.0
        with:
          run_install: false

      - name: Set up Node.js
        uses: actions/setup-node@949feb2413d6458794dcd2491c4babbbce0c15c1 #v7.1.0
        with:
          node-version-file: .node-version
          cache: "pnpm"

      - name: Install Rust toolchain
        uses: dtolnay/rust-toolchain@683b588c487a69d01f6c6ddf40f036ff682cc2c8 #master
        with:
          toolchain: stable
          components: rustfmt, clippy

      # Dependencies only: the app crate itself always rebuilds. Only main
      # writes the cache, so pull requests and tags reuse it without churning
      # the 10 GB repository cache.
      - name: Rust cache
        uses: swatinem/rust-cache@6323deb102c322ba6fcbdcafc7e3dddab59af2b6 #v2.9.2
        with:
          workspaces: "src-tauri -> target"
          save-if: ${{ github.ref == 'refs/heads/main' }}

      - name: Install dependencies (Ubuntu only)
        if: matrix.os == 'ubuntu-22.04'
        run: |
          sudo apt-get update
          sudo apt-get install -y libwebkit2gtk-4.1-dev build-essential curl wget file libxdo-dev libssl-dev libayatana-appindicator3-dev librsvg2-dev openvpn unzip

      - name: Install frontend dependencies
        run: pnpm install --frozen-lockfile

      - name: Build frontend
        run: pnpm build

      - name: Get host target
        id: host_target
        shell: bash
        run: |
          HOST_TARGET=$(rustc -vV | sed -n 's|host: ||p')
          echo "target=${HOST_TARGET}" >> "$GITHUB_OUTPUT"
          echo "Host target: ${HOST_TARGET}"

      # A dev build, not --release. Tauri only needs the sidecar file to
      # exist at compile time, and the proxy integration tests build and use
      # target/debug/donut-proxy anyway. The release build compiled every
      # dependency a second time with thin LTO: 13 to 22 minutes per OS that
      # checked nothing the release workflow does not build for real.
      - name: Build sidecar binaries
        shell: bash
        working-directory: ./src-tauri
        run: |
          cargo build --bin donut-proxy

      - name: Copy sidecar binaries to Tauri binaries
        shell: bash
        env:
          HOST_TARGET: ${{ steps.host_target.outputs.target }}
        run: |
          mkdir -p src-tauri/binaries
          if [[ "$HOST_TARGET" == *"windows"* ]]; then
            cp src-tauri/target/debug/donut-proxy.exe "src-tauri/binaries/donut-proxy-${HOST_TARGET}.exe"
          else
            cp src-tauri/target/debug/donut-proxy "src-tauri/binaries/donut-proxy-${HOST_TARGET}"
            chmod +x "src-tauri/binaries/donut-proxy-${HOST_TARGET}"
          fi

      - name: Download verified Xray-core sidecar
        env:
          HOST_TARGET: ${{ steps.host_target.outputs.target }}
        run: node src-tauri/download-xray.mjs --target "$HOST_TARGET"
        shell: bash

      - name: Run rustfmt check
        run: cargo fmt --all -- --check
        working-directory: src-tauri

      - name: Run clippy check and deny warnings
        run: cargo clippy --all-targets --all-features -- -D warnings -D clippy::all
        working-directory: src-tauri

      - name: Run test suite
        run: pnpm test

      # Cargo.lock is the same on every OS, so one audit covers it. The Ubuntu
      # image ships cargo-audit; installing it elsewhere cost 4 to 6 minutes.
      - name: Run cargo audit security check
        if: matrix.os == 'ubuntu-22.04'
        working-directory: src-tauri
        run: |
          command -v cargo-audit > /dev/null || cargo install cargo-audit --locked
          cargo audit