servo/.github/workflows/linux.yml

name: Linux
on:
  workflow_call:
    outputs:
      artifact_ids:
        value: ${{ jobs.build.outputs.artifact_ids }}
        description: Comma-separated list of artifact IDs for the release artifacts
    inputs:
      profile:
        required: false
        default: "release"
        type: string
      build-args:
        default: ""
        required: false
        type: string
      wpt-args:
        default: ""
        required: false
        type: string
      wpt-sync-from-upstream:
        required: false
        default: false
        type: boolean
      wpt:
        required: false
        type: boolean
      number-of-wpt-chunks:
        default: 20
        required: false
        type: number
      unit-tests:
        required: false
        default: false
        type: boolean
      build-libservo:
        required: false
        default: false
        type: boolean
      force-github-hosted-runner:
        required: false
        type: boolean
        default: false
      bencher:
        required: false
        default: false
        type: boolean
      coverage:
        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:
        required: false
        type: boolean
      number-of-wpt-chunks:
        default: 20
        required: false
        type: number
      unit-tests:
        required: false
        default: false
        type: boolean
      build-libservo:
        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:
    runs-on: ubuntu-24.04
    outputs:
      unique-id: ${{ steps.select.outputs.unique-id }}
      selected-runner-label: ${{ steps.select.outputs.selected-runner-label }}
      runner-type-label: ${{ steps.select.outputs.runner-type-label }}
      is-self-hosted: ${{ steps.select.outputs.is-self-hosted }}
    steps:
      - name: Runner select
        id: select
        uses: servo/ci-runners/actions/runner-select@44317e3cd86c5ff2ef0b08878b90da246bc237da
        with:
          GITHUB_TOKEN: ${{ github.token }}
          # Before updating the GH action runner image for the nightly job, ensure
          # that the system has a glibc version that is compatible with the one
          # used by the wpt.fyi runners.
          github-hosted-runner-label: ubuntu-22.04
          self-hosted-image-name: servo-ubuntu2204
          # You can disable self-hosted runners globally by creating a repository variable named
          # NO_SELF_HOSTED_RUNNERS with any non-empty value.
          # <https://github.com/servo/servo/settings/variables/actions>
          NO_SELF_HOSTED_RUNNERS: ${{ vars.NO_SELF_HOSTED_RUNNERS }}
          # Any other boolean conditions that disable self-hosted runners go here.
          force-github-hosted-runner: ${{ inputs.force-github-hosted-runner }}

  build:
    needs:
      - runner-select
    name: Linux Build [${{ needs.runner-select.outputs.unique-id }}]
    runs-on: ${{ needs.runner-select.outputs.selected-runner-label }}
    outputs:
      artifact_ids: ${{ steps.artifact_ids.outputs.artifact_ids }}
    steps:
      - uses: servo/ci-runners/actions/checkout@44317e3cd86c5ff2ef0b08878b90da246bc237da
      - 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: Set LIBCLANG_PATH env # needed for bindgen in mozangle
        if: ${{ runner.environment != 'self-hosted' }}
        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: Change Mirror Priorities
        if: ${{ runner.environment != 'self-hosted' }}
        uses: ./.github/actions/apt-mirrors
      - uses: taiki-e/install-action@v2
        with:
          tool: nextest
      - name: Bootstrap dependencies
        if: ${{ runner.environment != 'self-hosted' }}
        timeout-minutes: 10
        run: |
          sudo apt update
          echo "wireshark-common wireshark-common/install-setuid boolean true" | sudo debconf-set-selections
          sudo apt install -qy tshark
          ./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 --profile ${{ inputs.profile }} ${{ inputs.build-args }}
          cp -r target/cargo-timings target/cargo-timings-linux
      - name: Smoketest
        run: xvfb-run ./mach smoketest --profile ${{ inputs.profile  }}
      - name: Script tests
        run: ./mach test-scripts
      - name: Unit tests
        id: run_unit_tests
        if: ${{ inputs.unit-tests }}
        env:
          NEXTEST_RETRIES: 2 # https://github.com/servo/servo/issues/30683
        run: ./mach test-unit --profile ${{ inputs.profile }} --nextest-profile ci
      # We upload the test-results to Codecov to help us identify flaky unit-tests.
      - name: Upload test results to Codecov
        # Upload test results to Codecov, also for failed unit-tests, but only
        # if unit-tests were supposed to run, and not if they were skipped (e.g., due
        # to an earlier failure).
        if: ${{ !cancelled() && steps.run_unit_tests.conclusion != 'skipped' }}
        uses: codecov/codecov-action@v5
        with:
          report_type: test_results
          files: target/nextest/ci/junit.xml
          disable_search: true
          flags: unittests,unittests-linux,unittests-linux-${{ inputs.profile }}
          token: ${{ secrets.CODECOV_TOKEN }}
      - name: Devtools tests
        if: ${{ false && inputs.unit-tests }}  # FIXME #39273
        run: ./mach test-devtools --profile ${{ inputs.profile }}
      - name: Archive build timing
        uses: actions/upload-artifact@v4
        with:
          name: cargo-timings-linux-${{ inputs.profile }}
          # Using a wildcard here ensures that the archive includes the path.
          path: target/cargo-timings-*
      - name: Build mach package
        run: ./mach package --profile ${{ inputs.profile }}
      - name: Upload artifact for mach package
        uses: actions/upload-artifact@v4
        id: upload-tarball
        with:
          name: ${{ inputs.profile }}-binary-linux
          path: target/${{ inputs.profile }}/servo-tech-demo.tar.gz
      - name: Collect artifact IDs needed by the release workflow
        id: artifact_ids
        shell: bash
        run: |
          echo "artifact_ids=${{steps.upload-tarball.outputs.artifact-id}}" >> $GITHUB_OUTPUT

  wpt-2020:
    if: ${{ inputs.wpt }}
    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 }}
      number-of-wpt-chunks: ${{ inputs. number-of-wpt-chunks }}
      binary-path: servo/servo
    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/servo-tech-demo.tar.gz
      binary-path: servo/servo
      file-size: true
      # We only evaluate speedometer and dromaeo score in release
      speedometer: ${{ inputs.profile == 'release' }}
      dromaeo: ${{ inputs.profile == 'release' }}
    secrets: inherit

  build-libservo:
    if: ${{ inputs.build-libservo }}
    name: Build libservo and MSRV check
    runs-on: ubuntu-22.04
    steps:
      - uses: actions/checkout@v5
        if: github.event_name != 'pull_request_target'
        with:
          fetch-depth: 1
      # This is necessary to checkout the pull request if this run was triggered via a
      # `pull_request_target` event.
      - uses: actions/checkout@v5
        if: github.event_name == 'pull_request_target'
        with:
          ref: ${{ github.event.pull_request.head.sha }}
          fetch-depth: 1
      - 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: Set LIBCLANG_PATH env # needed for bindgen in mozangle
        run: echo "LIBCLANG_PATH=/usr/lib/llvm-14/lib" >> $GITHUB_ENV
      - name: Setup Python
        uses: ./.github/actions/setup-python
      - name: Determine MSRV
        id: msrv
        uses: ./.github/actions/parse_msrv
      - name: Install MSRV
        uses: dtolnay/rust-toolchain@master
        with:
          toolchain: ${{ steps.msrv.outputs.rust_version }}
      - name: Compile libservo with MSRV
        run: |
          cargo +${{ steps.msrv.outputs.rust_version }} build -p libservo --locked --all-targets

  # Runs the underlying job (“workload”) on a self-hosted runner if available.
  runner-select-coverage:
    if: inputs.coverage
    runs-on: ubuntu-24.04
    outputs:
      unique-id: ${{ steps.select.outputs.unique-id }}
      selected-runner-label: ${{ steps.select.outputs.selected-runner-label }}
      is-self-hosted: ${{ steps.select.outputs.is-self-hosted }}
    steps:
      - name: Runner select
        id: select
        uses: servo/ci-runners/actions/runner-select@44317e3cd86c5ff2ef0b08878b90da246bc237da
        with:
          GITHUB_TOKEN: ${{ github.token }}
          # Before updating the GH action runner image for the nightly job, ensure
          # that the system has a glibc version that is compatible with the one
          # used by the wpt.fyi runners.
          github-hosted-runner-label: ubuntu-22.04
          self-hosted-image-name: servo-ubuntu2204
          # You can disable self-hosted runners globally by creating a repository variable named
          # NO_SELF_HOSTED_RUNNERS with any non-empty value.
          # <https://github.com/servo/servo/settings/variables/actions>
          NO_SELF_HOSTED_RUNNERS: ${{ vars.NO_SELF_HOSTED_RUNNERS }}
          # Any other boolean conditions that disable self-hosted runners go here.
          force-github-hosted-runner: ${{ inputs.force-github-hosted-runner }}

  unit-test-coverage:
    if: inputs.coverage
    needs: runner-select-coverage
    name: Unit Test Coverage [${{ needs.runner-select-coverage.outputs.unique-id }}]
    runs-on: ${{ needs.runner-select-coverage.outputs.selected-runner-label }}
    continue-on-error: true
    steps:
      - uses: servo/ci-runners/actions/checkout@44317e3cd86c5ff2ef0b08878b90da246bc237da
      - 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: Set LIBCLANG_PATH env # needed for bindgen in mozangle
        shell: bash
        if: ${{ runner.environment != 'self-hosted' }}
        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: Change Mirror Priorities
        if: ${{ runner.environment != 'self-hosted' }}
        uses: ./.github/actions/apt-mirrors
      - name: Install cargo-llvm-cov
        uses: taiki-e/install-action@v2
        with:
          tool: cargo-llvm-cov,cargo-nextest
      - name: Bootstrap dependencies
        if: ${{ runner.environment != 'self-hosted' }}
        shell: bash
        run: |
          sudo apt update
          ./mach bootstrap --skip-lints
      - name: Determine options
        id: options
        run: |
          if [[ ${{ runner.environment }} == 'self-hosted' ]];
          then
            CARGO_PROFILE=dev
          else
            # github hosted runners don't have enough diskspace for the dev profile.
            CARGO_PROFILE=coverage
          fi
          echo "cargo_profile=${CARGO_PROFILE}" | tee $GITHUB_OUTPUT
      - name: Run unit-tests with coverage
        shell: bash
        env:
          NEXTEST_RETRIES: 2 # https://github.com/servo/servo/issues/30683
        run: |
          ./mach test-unit --code-coverage \
              --profile=${{ steps.options.outputs.cargo_profile }} \
              --llvm-cov-option=--codecov \
              --llvm-cov-option=--output-path=codecov.json
      - name: Upload coverage to Codecov
        uses: codecov/codecov-action@v5
        with:
          token: ${{ secrets.CODECOV_TOKEN }}
          files: codecov.json,support/crown/codecov.json
          fail_ci_if_error: true
          flags: unittests