DOMjudge comes with a fully featured REST API. It is based on the CCS Contest API specification to which some DOMjudge-specific API endpoints have been added. Full documentation on the available API endpoints can be found at http(s)://yourhost.example.edu/domjudge/api/doc.
DOMjudge also offers an OpenAPI Specification ver. 3 compatible JSON file, which can be found at http(s)://yourhost.example.edu/domjudge/api/doc.json.
Bootstrapping from Git repository sources
The installation steps in this document assume that you are using a downloaded tarball from the DOMjudge website. If you want to install from Git repository sources, because you want to use the bleeding edge code or consider to send a patch to the developers, the configure/build system first has to be bootstrapped.
You can either spin up a development Docker container or install locally.
The local install requires the GNU autoconf/automake toolset to be installed, and various tools to build the documentation.
On Debian(-based) systems, the following apt command should install the packages that are required (additionally to the ones already listed under domserver, judgehost and submit client requirements):
sudo apt install autoconf automake bats \ python-sphinx python-sphinx-rtd-theme rst2pdf fontconfig python3-yaml latexmk
On Debian 11 (Bullseye) and above, instead install:
sudo apt install autoconf automake bats \ python3-sphinx python3-sphinx-rtd-theme rst2pdf fontconfig python3-yaml \ latexmk texlive-latex-recommended texlive-latex-extra tex-gyre
When this software is present, bootstrapping can be done by running
make dist, which creates the
downloads and installs the PHP dependencies via composer and
generates documentation from RST/LaTeX sources.
Maintainer mode installation
DOMjudge provides a special maintainer mode installation. This method does an in-place installation within the source tree. This allows one to immediately see effects when modifying code.
This method requires some special steps which can most easily be run via makefile rules as follows:
make maintainer-conf [CONFIGURE_FLAGS=<extra options for ./configure>] make maintainer-install
Note that these targets have to be executed separately and they replace the steps described in the chapters on installing the DOMserver or Judgehost.
The Makefiles in the source tree use a recursion mechanism to run make
targets within the relevant subdirectories. The recursion is handled
SUBDIRS variables and the
recursion step is executed in
Makefile.global. Any target
added to the
REC_TARGETS list will be recursively called in
all directories in
SUBDIRS. Moreover, a local variant of the
-l appended is called after recursing into the
subdirectories, so recursion is depth-first.
are recursive by default, which means that these call their local
-l variants in all directories containing a Makefile. This
allows for true depth-first traversal, which is necessary to correctly
*clean targets: otherwise e.g.
be deleted before subdirectory
*clean targets are called that
depend on information in it.
Debugging and developing
While working on DOMjudge, it is useful to run the Symfony webapp in
development mode to have access to the profiling and debugging
interfaces and extended logging. To run in development mode, create
webapp/.env.local and add to it the setting
APP_ENV=dev. This is automatically done when running
maintainer-install when the file did not exist before.
For more details see the Symfony documentation.
webapp/.env.local file can also be used to overwrite the database
version. This is needed to automatically generate migrations based on the
current database compared to the models. To set the correct version, add a line
webapp/.env.local with the following contents:
Replace the following:
<user>with the database user.
<password>with the database password.
<host>with the database host.
<port>with the database port, probably 3306.
<version>with the server version. For MySQL use the server version like
5.7.0. For MariaDB use something like
<version> can be found in
For the judgeadaemon, use the
-v commandline option to increase
verbosity. It takes a numeric argument corresponding to the syslog
-v 7 to enable loglevel debug. This will also show
detailed debugging information from the scripts invoked by the
A special case is the API user with only the judgedaemon role. For
this user, Symfony profiling is disabled on the API for performance
reasons even in dev mode. If you should wish to profile these API calls
to enable it.
Running the test suite
The DOMjudge sources ship with a comprehensive test-suite that contains unit, integration and functional tests to make sure the system works.
These tests live in the
To run them, follow the following steps:
Make sure you have a working DOMjudge installation.
Make sure your database contains only the sample data. This can be done by first dropping any existing database and then running
bin/dj_setup_database -u root -r install.
Note that you don’t have to drop and recreate the database every time you run the tests; the tests are written in such a way that they keep working, even if you run them multiple times.
webapp/.env.test.local if it
exists) are loaded when you run the unit tests. You can thus place any
test-specific settings in there.
Now to run the tests, execute the command:
lib/vendor/bin/phpunit -c webapp/phpunit.xml.dist
This command can take an argument
--filter to which you can pass a string
which will be used to filter which tests to run. For example, to run only the
jury print controller tests, run:
lib/vendor/bin/phpunit -c webapp/phpunit.xml.dist --filter \ 'App\\Tests\\Controller\\Jury\\PrintControllerTest'
Or to run only one test in that class, you can run:
lib/vendor/bin/phpunit -c webapp/phpunit.xml.dist --filter \ 'App\\Tests\\Controller\\Jury\\PrintControllerTest::testPrintingDisabledJuryIndexPage
Note that most IDEs have support for running tests inside of them, so you don’t have to type these filters manually. If you use such an IDE, just make sure to specify the webapp/phpunit.xml.dist file as a PHPUnit configuration file and it should work.
Loading development fixture data
To debug failing Unit tests the fixtures can be loaded with:
./webapp/bin/console domjudge:load-development-data SampleSubmissionsFixture in the current database.