Contest Management System
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.github Add code of conduct Sep 12, 2018
cms Let languages wrap in AWS contest edit page Sep 16, 2018
cmscommon Move score mode constants to cmscommon so that RWS can use them Aug 16, 2018
cmscontrib Add updater for admin in questions, announcements, messages Sep 14, 2018
cmsranking RWS: return 0 after dropping stored data Sep 8, 2018
cmstaskenv Make Job.operation an ESOperation rather than its exported dict Sep 10, 2018
cmstestsuite Display memory limits/measurements in MiB rather than MB Sep 16, 2018
config Clarify documentation about generating a new secret key Jun 8, 2018
debian Rename LICENSE.txt to debian/copyright May 8, 2018
docs Add zip as a requirement for using Python Sep 16, 2018
isolate @ e632cd6 Update isolate to version v1.6 Aug 17, 2018
scripts Add noqa to all star imports from future Aug 16, 2018
.codacy.yaml Codacy configuration to ignore files Sep 12, 2018
.editorconfig Use .editorconfig Sep 19, 2015
.eslintignore Added basic eslint configuration. Dec 31, 2016
.eslintrc.json Added basic eslint configuration. Dec 31, 2016
.gitignore Add built localization files to gitignore Jan 5, 2016
.gitmodules Move to ioi/isolate v1.3 Mar 14, 2017
.travis.yml Use system rustc in TravisCI build Aug 27, 2018
AUTHORS.txt Add myself to AUTHORS.TXT Aug 29, 2018
LICENSE.txt Rename LICENSE-AGPL.txt to LICENSE.txt May 8, 2018 Update mailing lists from FreeLists to Google Groups Mar 16, 2018
babel_mapping.cfg Port CWS to Jinja2: enable template message extraction in Babel mapping Feb 22, 2018
dev-requirements.txt Bump dependency versions to track Ubuntu 18.04 Feb 3, 2018 Fix broken introduced by Py2+3 code Mar 14, 2018
requirements.txt Silence psycopg2 warning in logs Mar 29, 2018
setup.cfg Update mailing lists from FreeLists to Google Groups Mar 16, 2018 Prefer hardcoded slashes over os.path.join in package data in Sep 8, 2018

Contest Management System


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CMS, or Contest Management System, is a distributed system for running and (to some extent) organizing a programming contest.

CMS has been designed to be general and to handle many different types of contests, tasks, scorings, etc. Nonetheless, CMS has been explicitly build to be used in the 2012 International Olympiad in Informatics, held in September 2012 in Italy.


For end-users it's best to download the latest stable version of CMS, which can be found already packaged at

This git repository, which contains the development version in its master branch, is intended for developers and everyone interested in contributing or just curious to see how the code works and wanting to hack on it.

Please note that since the sandbox is contained in a git submodule you should append --recursive to the standard git clone command to obtain it. Or, if you have already cloned CMS, simply run the following command from inside the repository:

git submodule update --init


To learn how to install and use CMS, please read the documentation, available at

If you have questions or need help troubleshooting some problem, contact us in the chat at gitter, or write on the support mailing list, where no registration is required (you can see the archives on Google Groups).

To help with the troubleshooting, you can upload on some online pastebin the relevant log files, that you can find in /var/local/log/cms/ (if CMS was running installed) or in ./log (if it was running from the local copy).

If you encountered a bug, please file an issue on GitHub following the instructions in the issue template.

Please don't file issues to ask for help, we are happy to help on the mailing list or on gitter, and it is more likely somebody will answer your query sooner.

You can subscribe to to receive announcements of new releases and other important news. Register on Google Groups.

For development queries, you can write to and as before subscribe or see the archives on Google Groups.


CMS has been used in several official and unofficial contests. Please find an updated list at

If you used CMS for a contest, selection, or a similar event, and want to publicize this information, we would be more than happy to hear from you and add it to that list.