A cross-platform virtual tabletop for multiplayer card games https://cockatrice.github.io
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Lukas Brübach e4d6d6625f [Build] Add an ENABLE_SANITIZERS option for ASan and UBSan
Adds -DENABLE_SANITIZERS, off by default, building with AddressSanitizer and
UndefinedBehaviorSanitizer. The bulk of the work is in the three ways the obvious
implementation silently does the wrong thing.

Probe the flags on the link step, not just the compile step. check_cxx_compiler_flag()
only compiles, so every sanitizer flag comes back unsupported, because linking an ASan
object without -fsanitize=address leaves __asan_init undefined. The result is not a
build failure but a build that appears instrumented and is not, which is worse. Use
check_cxx_source_compiles() with CMAKE_REQUIRED_LINK_OPTIONS instead, and treat an
unsupported sanitizer pair as fatal since the cosmetic flags are allowed to degrade.

Opt vendored sources out per source, through a cockatrice_disable_sanitizers_for()
helper rather than a list of set_source_files_properties() calls at the root. The
helper has to exist because CMake resolves a source-file property against the directory
scope its target was declared in: setting the property from the root with absolute paths
is a no-op, silently, which is why the call sites sit next to the add_library and
add_executable that pull the vendored code in. SFMT, minizip, the LZMA SDK and Qxt SMTP
are excluded. oracle/src/qt-json is in the history but not in the tree, removed in
#7214.

Also mark those sources SKIP_PRECOMPILE_HEADERS. The PCH is built with the sanitizer
flags, so it defines __SANITIZE_ADDRESS__; a translation unit compiled with
-fno-sanitize=all does not and GCC then refuses the PCH, which is a fatal
-Werror=invalid-pch in the servatrice and oracle builds.

-fno-sanitize=vptr is not optional. Qt constructs QObject subclasses into raw storage
and writes the vptr afterwards, so the vptr check reports on essentially every QObject
instantiation, and it has no value here because nothing outside moc-generated code
inherits QObject.

Verified on the resulting build: our own translation units carry ASan and UBSan calls,
SFMT.o carries neither, and the full suite of 464 cases passes clean under
ASAN_OPTIONS=detect_leaks=0:abort_on_error=1 with UBSAN_OPTIONS=halt_on_error=0.

The test suite needs two adjustments to make this option usable at all, both of which
land here because they are consequences of COCKATRICE_SANITIZERS existing rather than
independent changes.

DISCOVERY_TIMEOUT rises from 60s to 300s under sanitizers. An instrumented binary takes
2.8s to answer --gtest_list_tests against 0.04s uninstrumented, and discovery runs
several binaries at once behind a -j build.

One target is excluded via a NO_SANITIZE flag, server_developer_role_test. Reaching
google::protobuf::TextFormat::Printer's destructor aborts on an absl assertion inside
system protobuf 33.4 whenever the consumer translation unit is built without NDEBUG,
which a Debug sanitizer build is. This reproduces with no Cockatrice code at all, just
"TextFormat::Printer p; p.PrintToString(msg, &out);" built with -fsanitize=address, so it
is upstream rather than ours. It is a flag and not a fourth label because "skip this in
the sanitizer leg" has to compose with a test's group rather than compete for the single
label slot, and because a flag excludes by not registering the cases at all, which
cannot rot the way a label silently can. The target still builds and still runs on the
legs without sanitizers.
2026-10-10 19:51:07 +02:00
.ci [Tests] Register each test case with CTest instead of each test binary 2026-10-10 19:48:21 +02:00
.github [CI] Fix permissions for automations around translations (#7394) 2026-10-04 20:20:28 +02:00
.tx Remove webclient (extracted to Webatrice repo) (#6848) 2026-05-08 09:14:53 -04:00
cmake [Build] Add an ENABLE_SANITIZERS option for ASan and UBSan 2026-10-10 19:51:07 +02:00
cockatrice fix the desktop file, removing the invalid key (#7406) 2026-10-10 17:15:10 +02:00
doc [Client] Improve card database update visibility (#7458) 2026-10-09 11:07:48 +02:00
libcockatrice_card [CardDB] Keep parse-time set filtering and bust the cache on enablement changes (#7448) 2026-10-09 06:09:18 +02:00
libcockatrice_deck_list [Tooling] Apply include-what-you-use across the tree (#7396) 2026-10-08 11:13:50 +02:00
libcockatrice_filters [Tooling] Apply include-what-you-use across the tree (#7396) 2026-10-08 11:13:50 +02:00
libcockatrice_interfaces [CardDB] Keep parse-time set filtering and bust the cache on enablement changes (#7448) 2026-10-09 06:09:18 +02:00
libcockatrice_models [Tooling] Apply include-what-you-use across the tree (#7396) 2026-10-08 11:13:50 +02:00
libcockatrice_network [Tooling] Apply include-what-you-use across the tree (#7396) 2026-10-08 11:13:50 +02:00
libcockatrice_protocol [Tooling] Apply include-what-you-use across the tree (#7396) 2026-10-08 11:13:50 +02:00
libcockatrice_rng [Build] Add an ENABLE_SANITIZERS option for ASan and UBSan 2026-10-10 19:51:07 +02:00
libcockatrice_settings [Client] Improve card database update visibility (#7458) 2026-10-09 11:07:48 +02:00
libcockatrice_utility [Client] Improve card database update visibility (#7458) 2026-10-09 11:07:48 +02:00
oracle [Build] Add an ENABLE_SANITIZERS option for ASan and UBSan 2026-10-10 19:51:07 +02:00
servatrice [Build] Add an ENABLE_SANITIZERS option for ASan and UBSan 2026-10-10 19:51:07 +02:00
tests [Build] Add an ENABLE_SANITIZERS option for ASan and UBSan 2026-10-10 19:51:07 +02:00
tools [Tooling] Add IWYU Qt6 mapping, generator, and runner script (#7454) 2026-10-08 11:17:01 +02:00
vcpkg@9e593bb18e Update vcpkg submodule to 2026.07.29 release (+ add baseline) (#7067) 2026-08-05 22:00:06 +02:00
.clang-format Enable RemoveSemicolon & update format.sh (#6896) 2026-05-16 20:26:37 +02:00
.cmake-format.json rework formatting with cmake-format (#4627) 2022-06-08 21:14:26 -04:00
.dockerignore Include git metadata in docker build context (#7393) 2026-10-04 03:48:15 +02:00
.gitignore [Card Database] Improve loading times through binary cache (#7051) 2026-07-27 23:12:53 +02:00
.gitmodules Docs: Use doxygen-awesome-css theme (#6512) 2026-01-24 11:22:43 +01:00
CMakeLists.txt [Build] Add an ENABLE_SANITIZERS option for ASan and UBSan 2026-10-10 19:51:07 +02:00
docker-compose.yml Docker compose: Link to our GHCR hosted servatrice image (#6728) 2026-03-22 10:28:24 +01:00
docker-compose.yml.windows Docker compose: Link to our GHCR hosted servatrice image (#6728) 2026-03-22 10:28:24 +01:00
Dockerfile [Security] Use a CSPRNG for salts, tokens, and RNG seeding (#7192) 2026-09-04 13:49:18 +02:00
Doxyfile [Docs] Cleanup Doxygen files (#7361) 2026-10-06 07:23:41 +02:00
format.sh [Build] Add precompiled headers for Qt-backed executables (#7235) 2026-09-05 19:40:36 +02:00
iwyu.sh [Tooling] Add IWYU Qt6 mapping, generator, and runner script (#7454) 2026-10-08 11:17:01 +02:00
LICENSE update the address of the fsf in the license (#6113) 2025-09-10 18:18:34 -04:00
qt6.imp [Tooling] Add IWYU Qt6 mapping, generator, and runner script (#7454) 2026-10-08 11:17:01 +02:00
README.md [Readme] Add hint on building docs (#7389) 2026-10-04 21:48:10 +02:00
shell.nix nix: Add development utilities to shell.nix (#5725) 2025-03-15 19:03:26 +00:00
vcpkg.json Update vcpkg submodule to 2026.07.29 release (+ add baseline) (#7067) 2026-08-05 22:00:06 +02:00


Cockatrice | Download | Related | Community | Contribute | Build | Run



To get started with Cockatrice ⇢ view our webpage
To get support, or suggest changes to the app ⇢ file an issue (How?) To help with development ⇢ learn how to contribute


Cockatrice

Cockatrice is an open-source, multiplatform application for playing tabletop card games over a network. The program's server design prevents users from manipulating the game for unfair advantage. The client also provides a single-player mode, which allows users to brew while offline.

This project uses C++ and the Qt libraries.

Download Cockatrice Eternal Download Count

Downloads are available for stable releases and the current beta version in development.
There is no strict release schedule for either of them.

Latest stable release:
Download Stable Release  
Latest beta version:
Download Beta Release   
While incorporating the latest fixes and features, beta builds may not be stable or contain new bugs!
Please report any findings and open new issues when testing them!

Related Repositories

Community Resources Discord

Join our Discord community to connect with other project contributors (#dev channel) or fellow users of the app. Come here to talk about the application, features, or just to hang out.

Important

For support regarding specific servers, please contact that server's admin/mods and use their dedicated communication channels rather than contacting the team building the software.

Contribute

Code | Documentation | Translation

Repository Activity

Cockatrice Repo Analytics

Kudos to all our amazing contributors ❤️

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Code

To contribute code to the project, please review our guidelines first.
We maintain two tags for contributors to easier find issues to potentially work on:

  • Good first issue
    Issues tagged in this way provide a simple way to get started. They don't require much experience to be worked on.
  • Help wanted
    This tag is used for issues that we are looking for somebody to pick up. Often this is for feature suggestions we support, but don't have the time to work on ourselves.

For both tags, we're willing to provide help to contributors in showing them where and how they can make changes, as well as code reviews for submitted changes.
We'll happily advice on how best to implement a feature, or we can show you where the codebase is doing something similar before you get too far along - put a note on an issue you want to discuss more on!

You can also have a look at our Todo List in our Code Documentation or search the repo for \todo comments.

Documentation CI Docs

There are various places where useful information for different needs are maintained:

Cockatrice tries to use the Google Developer Documentation Style Guide to ensure consistent documentation. We encourage you to improve the documentation by suggesting edits based on this guide.

Translation Transifex Project

Cockatrice uses Transifex to manage translations. You can help us bring Cockatrice and Oracle to your language and just adjust single wordings right from within your browser by visiting our Transifex project page. The Webatrice web client manages its own translations in its repo.

Check out our Translator FAQ for more information about getting involved, and join a group of hundreds of others!

Build CI Desktop CI Docker

Dependencies: (for minimum versions search our CMake file)

Oracle can optionally use some packages to load compressed card files:


Basic compilation steps:

mkdir build
cd build
cmake ..
make

You can then

  • Create a Cockatrice installation inside the release folder:
    make install
    
  • Or make an installation package specific to your system:
    make package
    

Note

Detailed compiling instructions can be found in the Cockatrice wiki at Compiling Cockatrice


The following flags (with their non-default values) can be passed to cmake:

Flag Description
-DWITH_SERVER=1 Build Servatrice server
-DWITH_CLIENT=0 Don't build Cockatrice client
-DWITH_ORACLE=0 Don't build Oracle card database tool
-DCMAKE_BUILD_TYPE=Debug Compile in debug mode
Enables extra logging output, debug symbols, and much more verbose compiler warnings
-DWARNING_AS_ERROR=0 Don't treat compilation warnings as errors in debug mode
-DUPDATE_TRANSLATIONS=1 Configure make to update the translation .ts files for new strings in the source code
Note: make clean will remove the .ts files
-DTEST=1 Enable regression tests
Note: make test to run tests, googletest will be downloaded if not available

Tip

Build code documentation (Doxygen) according to our configuration into /docs:

doxygen Doxyfile

Run

Cockatrice is the game client
Oracle fetches card data
Servatrice is the server

Docker

You can build an image & deploy a Servatrice (Cockatrice server) container using Docker and our Dockerfile yourself.

For more details, look into our wiki section on Setting up Servatrice.
You'll also find more hints on our pre-build image there, or the docker-compose file which will configure and run both a MySQL server and Servatrice.

License GPLv2 License

Cockatrice is free software, licensed under the GPLv2.