It is convenient to invoke such synchronization automatically, for example once every day. If you have enabled commit notifications for the project’s repository, any new changes will be visible for subscribers. Here is an example crontab entry:
# m h dom mon dow command @daily cd $HOME/projects/www-lang; make VCS=yes
The job doesn’t have to run on the team leader’s machine, since all team members have write access to their project repository.
If desired, you could set up another job to report the status of the translations weekly or fortnightly, for example:
# m h dom mon dow command @weekly cd $HOME/projects/www-lang; \ make report | mail -s "Weekly statistics" \ email@example.com
Caution: Most cron implementations do not allow the character ‘\’ as a line continuation character—the example shown is made that way for better readability.