The Servo Browser Engine
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shuppy 47aa9ea8cf
ci: Run devtools tests whenever we run unit tests (#38614)
this patch updates linux.yml, mac.yml, and windows.yml to run the
devtools test suite (#36325), whenever unit tests are enabled in those
workflows. plus three changes that speed up the tests from 73 → 65 → 56
→ 51 seconds:

- we replace the hardcoded sleep(1) after starting servoshell with a
loop that waits until the devtools port is open (this also fixes
intermittent failures when servoshell starts too slowly, especially on
macOS)
- we start the internal web servers once, and reuse them across all
tests
- we run servoshell in headless mode (this is also required because most
CI runners have no GUI)

finally we fix two bugs that cause very noisy but not very interesting
error messages:

- in the test code, we use a [context
manager](https://docs.python.org/3/reference/datamodel.html#context-managers)
to ensure the devtools client is disconnected unconditionally, even if
test methods or assert helper methods raise exceptions (this was causing
errors on all platforms)
- in the devtools server, we treat “connection reset” errors when
reading from the client like a normal EOF, rather than as a failure
(this was causing errors on Windows)

on self-hosted linux builds, there are still spurious error messages
like the following, but we can fix them later:

```
error: XDG_RUNTIME_DIR not set in the environment.
libEGL warning: egl: failed to create dri2 screen
```

Testing: this patch effectively adds 44 tests to CI
Fixes: #36325

---------

Signed-off-by: Delan Azabani <dazabani@igalia.com>
Signed-off-by: atbrakhi <atbrakhi@igalia.com>
Co-authored-by: atbrakhi <atbrakhi@igalia.com>
2025-08-12 15:10:45 +00:00
.cargo Move various reflector types and traits to script_bindings (#35279) 2025-02-04 06:58:08 +00:00
.github ci: Run devtools tests whenever we run unit tests (#38614) 2025-08-12 15:10:45 +00:00
.vscode use ruff rather than flake8 for python code linting (#37045) 2025-05-24 14:19:47 +00:00
components ci: Run devtools tests whenever we run unit tests (#38614) 2025-08-12 15:10:45 +00:00
docs Update in-tree docs to point to the new book (#32743) 2024-07-09 15:42:00 +00:00
etc Support WPT subsuites in agregating and flake detection (#37584) 2025-07-04 16:58:42 +00:00
ports/servoshell Basic webdriver support to servoshell on ohos (#38386) 2025-08-12 06:26:53 +00:00
python ci: Run devtools tests whenever we run unit tests (#38614) 2025-08-12 15:10:45 +00:00
resources devtools: Show clients where they can set breakpoints (#37667) 2025-08-12 04:53:53 +00:00
support Losslessly optimize Android resources (#38332) 2025-07-29 12:15:50 +00:00
tests layout: Improve sizing for inline SVG (#38603) 2025-08-12 12:45:15 +00:00
third_party script_binding: Add type check on servo script bindings (#38161) 2025-08-01 04:34:24 +00:00
.gitattributes openharmony: add servoshell for ohos (#33295) 2024-09-20 08:20:27 +00:00
.gitignore Add justfile to gitignore (#37621) 2025-06-23 02:37:04 +00:00
.mailmap Update Tetsuharu OHZEKI's entry in mailmap 2019-11-15 00:46:45 +09:00
.python-version Set python version to 3.11 (#34707) 2024-12-19 18:42:36 +00:00
Cargo.lock layout: Improve sizing for inline SVG (#38603) 2025-08-12 12:45:15 +00:00
Cargo.toml build(deps): bump uuid from 1.17.0 to 1.18.0 (#38611) 2025-08-12 02:06:23 +00:00
CODE_OF_CONDUCT.md Clarify the Code of Conduct (closes servo/servo.org#164) (#32835) 2024-07-23 09:12:03 +00:00
CONTRIBUTING.md Update in-tree docs to point to the new book (#32743) 2024-07-09 15:42:00 +00:00
deny.toml Update Nom to 8.0.0 (#38585) 2025-08-10 21:25:37 +00:00
Info.plist remove bhtml 2018-02-11 08:02:39 +01:00
LICENSE Update MPL license to https (part 1) 2018-11-19 14:46:43 +01:00
LICENSE_WHATWG_SPECS Add license for WHATWG specifications in code (#36282) 2025-04-03 04:33:06 +00:00
mach Mergeruff.toml into pyproject.toml (#37741) 2025-07-04 12:21:48 +00:00
mach.bat Mergeruff.toml into pyproject.toml (#37741) 2025-07-04 12:21:48 +00:00
PULL_REQUEST_TEMPLATE.md Use a simpler GitHub pull request template (#36203) 2025-03-30 10:14:13 +00:00
pyproject.toml script_binding: Add type check on servo script bindings (#38161) 2025-08-01 04:34:24 +00:00
README.md mach (Windows): make vswhere.exe work properly (#38028) 2025-07-13 12:23:55 +00:00
rust-toolchain.toml Unsimplify rust-toolchain.toml by adding clippy and rustfmt (#37028) 2025-05-16 17:04:27 +00:00
rustfmt.toml Update rustfmt to the 2024 style edition (#35764) 2025-03-03 11:26:53 +00:00
SECURITY.md docs(security): avoid possible misconception in the security policy (#37032) 2025-05-16 21:27:42 +00:00
servo-tidy.toml mach(test-tidy): Remove alphabetical order and line length rule from tidy (#38538) 2025-08-11 08:54:50 +00:00
servobuild.example Fix DBus warning when running mach (#37818) 2025-07-02 23:17:01 +00:00
shell.nix Fix DBus warning when running mach (#37818) 2025-07-02 23:17:01 +00:00
taplo.toml Format toml files (#30112) 2023-08-17 15:07:43 +00:00
uv.toml uv: Use native-tls (#36564) 2025-04-16 11:47:49 +00:00

The Servo Parallel Browser Engine Project

Servo is a prototype web browser engine written in the Rust language. It is currently developed on 64-bit macOS, 64-bit Linux, 64-bit Windows, 64-bit OpenHarmony, and Android.

Servo welcomes contribution from everyone. Check out:

Coordination of Servo development happens:

Getting started

For more detailed build instructions, see the Servo book under Setting up your environment, Building Servo, Building for Android and Building for OpenHarmony.

macOS

  • Download and install Xcode and brew.
  • Install uv: curl -LsSf https://astral.sh/uv/install.sh | sh
  • Install rustup: curl --proto '=https' --tlsv1.2 -sSf https://sh.rustup.rs | sh
  • Restart your shell to make sure cargo is available
  • Install the other dependencies: ./mach bootstrap
  • Build servoshell: ./mach build

Linux

  • Install curl:
    • Arch: sudo pacman -S --needed curl
    • Debian, Ubuntu: sudo apt install curl
    • Fedora: sudo dnf install curl
    • Gentoo: sudo emerge net-misc/curl
  • Install uv: curl -LsSf https://astral.sh/uv/install.sh | sh
  • Install rustup: curl --proto '=https' --tlsv1.2 -sSf https://sh.rustup.rs | sh
  • Restart your shell to make sure cargo is available
  • Install the other dependencies: ./mach bootstrap
  • Build servoshell: ./mach build

Windows

  • Download uv, choco, and rustup
    • Be sure to select Quick install via the Visual Studio Community installer
  • In the Visual Studio Installer, ensure the following components are installed:
    • Windows 10/11 SDK (anything >= 10.0.19041.0) (Microsoft.VisualStudio.Component.Windows{10, 11}SDK.{>=19041})
    • MSVC v143 - VS 2022 C++ x64/x86 build tools (Latest) (Microsoft.VisualStudio.Component.VC.Tools.x86.x64)
    • C++ ATL for latest v143 build tools (x86 & x64) (Microsoft.VisualStudio.Component.VC.ATL)
    • C++ MFC for latest v143 build tools (x86 & x64) (Microsoft.VisualStudio.Component.VC.ATLMFC)
  • Restart your shell to make sure cargo is available
  • Install the other dependencies: .\mach bootstrap
  • Build servoshell: .\mach build

Android

  • Ensure that the following environment variables are set:
    • ANDROID_SDK_ROOT
    • ANDROID_NDK_ROOT: $ANDROID_SDK_ROOT/ndk/26.2.11394342/ ANDROID_SDK_ROOT can be any directory (such as ~/android-sdk). All of the Android build dependencies will be installed there.
  • Install the latest version of the Android command-line tools to $ANDROID_SDK_ROOT/cmdline-tools/latest.
  • Run the following command to install the necessary components:
    sudo $ANDROID_SDK_ROOT/cmdline-tools/latest/bin/sdkmanager --install \
     "build-tools;34.0.0" \
     "emulator" \
     "ndk;26.2.11394342" \
     "platform-tools" \
     "platforms;android-33" \
     "system-images;android-33;google_apis;x86_64"
    
  • Follow the instructions above for the platform you are building on

OpenHarmony

  • Follow the instructions above for the platform you are building on to prepare the environment.
  • Depending on the target distribution (e.g. HarmonyOS NEXT vs pure OpenHarmony) the build configuration will differ slightly.
  • Ensure that the following environment variables are set
    • DEVECO_SDK_HOME (Required when targeting HarmonyOS NEXT)
    • OHOS_BASE_SDK_HOME (Required when targeting OpenHarmony)
    • OHOS_SDK_NATIVE (e.g. ${DEVECO_SDK_HOME}/default/openharmony/native or ${OHOS_BASE_SDK_HOME}/${API_VERSION}/native)
    • SERVO_OHOS_SIGNING_CONFIG: Path to json file containing a valid signing configuration for the demo app.
  • Review the detailed instructions at Building for OpenHarmony.
  • The target distribution can be modified by passing --flavor=<default|harmonyos> to `mach <build|package|install>.