CiviCRM is a constituent relationship management system designed to meet the needs of advocacy, non-profit and non-governmental groups. It is an open source project, licensed under GNU AGPL 3, and coordinated by CiviCRM LLC. The main project code repository is: https://github.com/civicrm/civicrm-core/
This project contains an archive of the text-versions of translations files, as well a scripts used mainly by various automations.
To translate CiviCRM in another language, please visit our project on Transifex: https://explore.transifex.com/civicrm/civicrm/
Please do not open a pull-request on this project for translations.
We also have various guides on the CiviCRM translation wiki: https://lab.civicrm.org/dev/translation/-/wikis/home
For questions, please post in the translation channel at https://chat.civicrm.org or on StackExchange at https://civicrm.stackexchange.com.
There are also a few language-specific channels at https://chat.civicrm.org, e.g. francophone, nederlandstalig, etc.
CiviCRM uses ISO 3166-1 to determine the language/country codes, such as fr_FR, fr_CA, es_ES, etc.
Initially, Transifex used mainly ISO 639 (fr, es, ...) to codify languages. It later became possible to use ISO 3166-1.
The recommended method, when possible in Transifex, is to use the ISO 3166-1 language code, since this is what uses gettext, the underlying translation tool.
We map ISO 639 to ISO 3166 codes in the .tx/config file.
For more information: