Have the Weblate Git communicate with our main Git repository

Originally created by @Anonymous on #15082 (Redmine)

(plan created by intrigeri and hefee - Jan 2018)

Translation Server

• Have a (rough) review of used scripts and interaction of components (tails#16326 (closed)).

Weblate

• We have to make sure that Weblate git only contains reviewed translations.
• maybe have pre-commit hooks that run check_po on the commit.
• Weblate should push by commit. Or if that to much noise once per hour. If once per hour we need a cronjob for this on the weblate VM.

MAIN GIT

• get pre-receive hook reviewed (#15402 (closed)).
• On merge, our main git has to verify that weblate tries to push only po files, modified or new ones, and nothing else. Email on error to weblate admins and tails-l10n.

Parent Task: tails#15079 (closed)

Subtasks

• tails#15185 (closed)
• #15356 (closed)
• #15402 (closed)
• #15673 (closed)
• #15675 (closed)
• tails#16842 (closed)

Related issues

• Related to tails#15355 (closed)
• Blocked by tails#16328 (closed)