A cross-platform virtual tabletop for multiplayer card games https://cockatrice.github.io
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[CardDB] Break the CardInfo <-> CardSet cycle on reload (#7645)
* [CardDB] Drop the CardInfo self pointer

The weak self pointer had to be assigned right after every construction,
and a missed assignment silently stopped change notifications. CardInfo
is always owned by a QSharedPointer, so it now derives from
QEnableSharedFromThis<CardInfo> and asks for sharedFromThis() instead:
nothing to initialize, and the CardSet cycle stays broken.

CardSet::newInstance() also loses the commented-out self-pointer
assignment left over from the same design.

* [CardDB] Pin the cardInfoChanged contract without the self pointer

Dropping CardInfo's self pointer moved change notifications onto
QEnableSharedFromThis, so the signal now rests on the card being owned by
a QSharedPointer. Two tests pin that down:

- A property change on a card owned by a CardDatabase still emits
  cardInfoChanged() carrying that card, which is what the card database
  views and models listen to.
- clone() starts out unowned, so a change to the clone is reported as the
  clone's and must not reach the original's observers.

* [CardDB] Treat an unowned CardInfo as a bug, not a no-op

Every CardInfo is built inside a QSharedPointer (both factory overloads
and clone()), and no constructor notifies anyone, so sharedFromThis() is
always available by the time addToSet() or a setter runs. Assert that and
warn in a released build, instead of silently skipping the notification
or the set append.

The copy constructor keeps its explicit QEnableSharedFromThis
initializer: GCC's -Wextra warns about the uninitialized base in every
translation unit that copies a CardInfo otherwise. A comment there
records that the clone deliberately starts unowned.

* [CardDB] Break the CardInfo <-> CardSet cycle on reload

CardSet is a QList<CardInfoPtr> and CardInfo::addToSet() appends the card
to its sets, while a card keeps a CardSetPtr per printing in
setsToPrintings. The sets therefore hold strong references back to the
cards, and the previous database snapshot stayed alive after a reload, so
RSS grew by roughly a second database on every reload.

Empty the sets before the cards are dropped: CardDatabase::clear() and
swapInDatabaseData() clear the sets before replacing the containers, and
removeCard() detaches the card from its sets, so nothing keeps a card
alive on behalf of a set once the database lets go of it.

Two tests pin the behaviour: a reload and a clear() must drop the last
strong reference to a card from the previous snapshot.

* [CardDB] Keep the set detach in one place

clear() and swapInDatabaseData() both emptied every set before dropping the
cards, so share that as detachSetMembership() instead of two copies that have
to stay in sync.

removeCard() now detaches through the first printing of each set directly, the
same way CardInfo::newInstance() appends, instead of an inner loop that always
breaks after the first item.

Because clear() empties the sets up front, its per-card detach was walking
every card's printings to remove it from sets that were already empty. Split
removeCard() into the per-card detach and unindexCard(), and let clear() call
only the latter.

* [CardDB] Test that removeCard detaches the card from its set

removeCard() is the one teardown path a caller can trigger for a single card
(the token editor uses it), and it now detaches the card from its sets as
well. Without that detach the set's strong CardInfoPtr keeps the removed card
alive forever, which is exactly what the reload and clear tests pin for the
whole-snapshot paths.

The test loads the fixture, removes Cat, and requires the card to be gone from
the CAT set and to be destroyed once the test drops its own reference.

* [Servatrice] Drop the settings cache from the logger

#7602 removed #include "settingscache.h" from server_logger.cpp but left
isLoggingEnabled() reading settingsCache, so master no longer compiles: the
servatrice target fails on the undeclared global and server_logger_test, which
compiles the same file without main.cpp, fails to link it.

The same commit made reloadConfig() the single place that stores writelog and
the log filters, precisely so logging threads stop reading the global QSettings.
isLoggingEnabled() now mirrors logMessage() and reads those members instead: the
console is a sink of its own, and the logfile needs an open file plus writelog.
The mutex is mutable so the const query can take it.

---------

Co-authored-by: Lukas Brübach <Bruebach.Lukas@bdosecurity.de>
2026-10-31 19:37:15 +01:00
.ci [Installer] Graceful close and a way out of a stuck update (#7687) 2026-10-31 15:32:59 +01:00
.github [CI] Keep the vcpkg cache directory guard unconditional (#7527) 2026-10-31 18:49:45 +01:00
.tx [Translation] Move config into git version control (#7575) 2026-10-18 14:29:51 +02:00
cmake [Installer] Graceful close and a way out of a stuck update (#7687) 2026-10-31 15:32:59 +01:00
cockatrice [Build] Use versionless Qt CMake commands (#7639) 2026-10-31 18:53:00 +01:00
doc Support tab-separated deck imports (#4222) (#7267) 2026-10-11 21:19:10 +02:00
libcockatrice_card [CardDB] Break the CardInfo <-> CardSet cycle on reload (#7645) 2026-10-31 19:37:15 +01:00
libcockatrice_deck_list [Build] Let AUTOMOC process library headers (#7638) 2026-10-31 18:49:05 +01:00
libcockatrice_filters [Build] Let AUTOMOC process library headers (#7638) 2026-10-31 18:49:05 +01:00
libcockatrice_game [Refactor] Move game logic into libcockatrice_game (#7437) 2026-10-31 18:44:15 +01:00
libcockatrice_interfaces [Build] Let AUTOMOC process library headers (#7638) 2026-10-31 18:49:05 +01:00
libcockatrice_models [Build] Let AUTOMOC process library headers (#7638) 2026-10-31 18:49:05 +01:00
libcockatrice_network [Build] Let AUTOMOC process library headers (#7638) 2026-10-31 18:49:05 +01:00
libcockatrice_protocol [Server/Client/Protocol] Let moderators clear banner cards (#7546) 2026-10-25 13:19:20 +01:00
libcockatrice_rng [Build] Let AUTOMOC process library headers (#7638) 2026-10-31 18:49:05 +01:00
libcockatrice_settings [Build] Let AUTOMOC process library headers (#7638) 2026-10-31 18:49:05 +01:00
libcockatrice_utility [Installer] Graceful close and a way out of a stuck update (#7687) 2026-10-31 15:32:59 +01:00
oracle [Build] Use versionless Qt CMake commands (#7639) 2026-10-31 18:53:00 +01:00
servatrice [CardDB] Break the CardInfo <-> CardSet cycle on reload (#7645) 2026-10-31 19:37:15 +01:00
tests [CardDB] Break the CardInfo <-> CardSet cycle on reload (#7645) 2026-10-31 19:37:15 +01:00
tools [Installer] Graceful close and a way out of a stuck update (#7687) 2026-10-31 15:32:59 +01:00
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] Use versionless Qt CMake commands (#7639) 2026-10-31 18:53:00 +01:00
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] Add app logo to main page + cleanup (#7471) 2026-10-10 23:48:37 +02:00
format.sh [CrashReporting] Name the files and processes behind a failed installer purge (#7590) 2026-10-24 00:46:54 +02:00
gcovr.cfg [CI] Publish a gcovr line-coverage report from the test run (#7404) 2026-10-11 15:05:28 +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
publish_beta.sh [Tooling] Add publish_beta.sh to automate Development beta tagging (#7505) 2026-10-19 15:01:18 +02:00
qt6.imp [Tooling] Add IWYU Qt6 mapping, generator, and runner script (#7454) 2026-10-08 11:17:01 +02:00
README.md [README] Small tweaks (#7585) 2026-10-22 20:13:43 +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 learn about the app and its code ⇢ read our code documentation 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 ❤️

Made with contrib.rocks

Code

To commit code to the project, please review our Contribution 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 everybody 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.