name: Linux
on:
  workflow_call:
    inputs:
      profile:
        required: false
        default: "release"
        type: string
      wpt-args:
        default: ""
        required: false
        type: string
      wpt-sync-from-upstream:
        required: false
        default: false
        type: boolean
      wpt-layout:
        required: false
        type: string
      unit-tests:
        required: false
        default: false
        type: boolean
      build-libservo:
        required: false
        default: false
        type: boolean
      upload:
        required: false
        default: false
        type: boolean
      github-release-id:
        required: false
        type: string
      force-github-hosted-runner:
        required: false
        type: boolean
        default: false
      bencher:
        required: false
        default: false
        type: boolean
  workflow_dispatch:
    inputs:
      profile:
        required: false
        default: "release"
        type: choice
        options: ["release", "debug", "production"]
      wpt-args:
        default: ""
        required: false
        type: string
      wpt-sync-from-upstream:
        default: false
        required: false
        type: boolean
      wpt-layout:
        required: false
        type: choice
        options: ["none", "2013", "2020", "all"]
      unit-tests:
        required: false
        default: false
        type: boolean
      build-libservo:
        required: false
        default: false
        type: boolean
      upload:
        required: false
        default: false
        type: boolean
      force-github-hosted-runner:
        required: false
        type: boolean
        default: false
      bencher:
        required: false
        default: false
        type: boolean

env:
  RUST_BACKTRACE: 1
  SHELL: /bin/bash

jobs:
  # Runs the underlying job (“workload”) on a self-hosted runner if available,
  # with the help of a `runner-select` job and a `runner-timeout` job.
  runner-select:
    uses: ./.github/workflows/self-hosted-runner-select.yml
    secrets: inherit
    with:
      # Ubuntu 22.04 has glibc 2.34 so the binaries produced
      # won't run on systems with older glibc e.g wpt.fyi
      # runners which still use 20.04.
      github-hosted-runner-label: ubuntu-${{ inputs.upload && '20.04' || '22.04' }}
      self-hosted-image-name: servo-ubuntu2204
      force-github-hosted-runner: ${{ inputs.upload || inputs.force-github-hosted-runner }}
  runner-timeout:
    needs:
      - runner-select
    uses: ./.github/workflows/self-hosted-runner-timeout.yml
    secrets: inherit
    with:
      unique-id: ${{ needs.runner-select.outputs.unique-id }}
      is-self-hosted: ${{ fromJSON(needs.runner-select.outputs.is-self-hosted) }}

  build:
    needs:
      - runner-select
    name: Linux Build [${{ needs.runner-select.outputs.unique-id }}]
    runs-on: ${{ needs.runner-select.outputs.selected-runner-label }}
    steps:
      - uses: actions/checkout@v4
        if: ${{ runner.environment != 'self-hosted' && github.event_name != 'pull_request_target' }}
      # This is necessary to checkout the pull request if this run was triggered via a
      # `pull_request_target` event.
      - uses: actions/checkout@v4
        if: ${{ runner.environment != 'self-hosted' && github.event_name == 'pull_request_target' }}
        with:
          ref: ${{ github.event.pull_request.head.sha }}

      # Faster checkout for self-hosted runner that uses prebaked repo.
      - if: ${{ runner.environment == 'self-hosted' && github.event_name != 'pull_request_target' }}
        run: git fetch --depth=1 origin $GITHUB_SHA
      - if: ${{ runner.environment == 'self-hosted' && github.event_name == 'pull_request_target' }}
        run: git fetch --depth=1 origin ${{ github.event.pull_request.head.sha }}
      - if: ${{ runner.environment == 'self-hosted' }}
        # Same as `git switch --detach FETCH_HEAD`, but fixes up dirty working
        # trees, in case the runner image was baked with a dirty working tree.
        run: |
          git switch --detach
          git reset --hard FETCH_HEAD
      - name: Free Disk Space (Ubuntu)
        uses: jlumbroso/free-disk-space@main
        if: ${{ runner.environment != 'self-hosted' }}
        with:
          tool-cache: false
          large-packages: false
          swap-storage: false
      - name: Install LLVM and Clang
        # Expliclity install Clang 14 on Ubuntu 20.04 used by the nightly job (#34713).
        if: ${{ runner.environment != 'self-hosted' && inputs.upload }}
        uses: KyleMayes/install-llvm-action@v2
        with:
          version: 14
        # FIXME: It would be better to use the above step for regular Linux jobs
        # and remove the following step, but currenty that is failing and needs investigation.
      - name: Set LIBCLANG_PATH env # needed for bindgen in mozangle
        if: ${{ runner.environment != 'self-hosted' && !inputs.upload }} # not needed on ubuntu 20.04 used for nightly
        run: echo "LIBCLANG_PATH=/usr/lib/llvm-14/lib" >> $GITHUB_ENV
      - name: Setup Python
        if: ${{ runner.environment != 'self-hosted' }}
        uses: ./.github/actions/setup-python
      - name: Bootstrap dependencies
        if: ${{ runner.environment != 'self-hosted' }}
        run: |
          sudo apt update
          ./mach bootstrap --skip-lints

      # Always install crown, even on self-hosted runners, because it is tightly
      # coupled to the rustc version, and we may have the wrong version if the
      # commit we are building uses a different rustc version.
      - name: Install crown
        run: cargo install --path support/crown

      - name: Build (${{ inputs.profile }})
        run: |
          ./mach build --use-crown --locked --${{ inputs.profile }} --features "layout_2013"
          cp -r target/cargo-timings target/cargo-timings-linux
      - name: Smoketest
        run: xvfb-run ./mach smoketest --${{ inputs.profile  }}
      - name: Script tests
        run: ./mach test-scripts
      - name: Unit tests
        if: ${{ inputs.unit-tests }}
        uses: nick-fields/retry@v3
        with:
          timeout_minutes: 20
          max_attempts: 2 # https://github.com/servo/servo/issues/30683
          command: ./mach test-unit --${{ inputs.profile }}
      - name: Build libservo with examples
        if: ${{ inputs.build-libservo }}
        continue-on-error: true
        run: cargo build -p libservo --all-targets
      - name: Archive build timing
        uses: actions/upload-artifact@v4
        with:
          name: cargo-timings-linux-${{ inputs.profile }}
          # Using a wildcard here ensures that the archive includes the path.
          path: target/cargo-timings-*
      - name: Build mach package
        run: ./mach package --${{ inputs.profile }}
      - name: Upload artifact for mach package
        uses: actions/upload-artifact@v4
        with:
          name: linux-${{ inputs.profile }}
          path: target/${{ inputs.profile }}/servo-tech-demo.tar.gz
      - name: Upload nightly
        if: ${{ inputs.upload }}
        run: |
          ./mach upload-nightly linux \
            --secret-from-environment \
            --github-release-id ${{ inputs.github-release-id }}
        env:
          S3_UPLOAD_CREDENTIALS: ${{ secrets.S3_UPLOAD_CREDENTIALS }}
          NIGHTLY_REPO_TOKEN: ${{ secrets.NIGHTLY_REPO_TOKEN }}
          NIGHTLY_REPO: ${{ github.repository_owner }}/servo-nightly-builds
      - name: Build package for target
        run: tar -czf target.tar.gz target/${{ inputs.profile }}/servo resources
      - name: Upload artifact for target
        uses: actions/upload-artifact@v4
        with:
          name: ${{ inputs.profile }}-binary-linux
          path: target.tar.gz

  wpt-2020:
    if: ${{ inputs.wpt-layout == '2020' || inputs.wpt-layout == 'all' }}
    name: Linux WPT
    needs: ["build"]
    uses: ./.github/workflows/linux-wpt.yml
    with:
      wpt-args: ${{ inputs.wpt-args }}
      profile: ${{ inputs.profile }}
      wpt-sync-from-upstream: ${{ inputs.wpt-sync-from-upstream }}
      wpt-layout: "layout-2020"
    secrets: inherit

  wpt-2013:
    if: ${{ inputs.wpt-layout == '2013' || inputs.wpt-layout == 'all' }}
    name: Linux WPT (Legacy)
    needs: ["build"]
    uses: ./.github/workflows/linux-wpt.yml
    with:
      wpt-args: ${{ inputs.wpt-args }}
      profile: ${{ inputs.profile }}
      wpt-sync-from-upstream: ${{ inputs.wpt-sync-from-upstream }}
      wpt-layout: "layout-2013"
    secrets: inherit

  bencher:
    needs: ["build"]
    if: ${{ inputs.bencher && inputs.profile != 'debug' && github.event_name != 'workflow_dispatch' && github.event_name != 'merge_group' }}
    uses: ./.github/workflows/bencher.yml
    with:
      target: 'linux'
      profile: ${{ inputs.profile }}
      compressed-file-path: ${{ inputs.profile }}-binary-linux/target.tar.gz
      binary-path: target/${{ inputs.profile }}/servo
      file-size: true
      # We only evaluate speedometer and dromaeo score in release
      speedometer: ${{ inputs.profile == 'release' }}
      dromaeo: ${{ inputs.profile == 'release' }}
    secrets: inherit