Added weblate-update-pot.yml GitHub Action

[lslezak]

Problem

• Automatically extract and update the translations file (POT file)
• https://trello.com/c/RWh29AWA/3396-5-agama-set-up-the-translation-infrastructure-web-ui

Solution

• Use a solution similar to the Cockpit solution
• Run a GitHub Action regularly which generates the POT file and pushes it to the agama-weblate repository
• To avoid unneeded commits the file is not updated when only the timestamp is changed and the rest of the file is the same

Notes

• The xgettext call is just a temporary solution, it should be later replaced by some other call (Trello card)
• Similarly the changes in the FileViewer.jsx file, these are there just to have some texts in the generated POT file and to have something to import to the Weblate

Testing

• Tested manually
• See this test run and a repeated test run (skipping the commit step because of no changes)
• See the generated agama.pot file
• At runtime the original English texts are displayed as the translations are currently not supported in the Web UI

[coveralls]

coverage: 72.172% (+0.01%) from 72.16% when pulling a25b916 on lslezak:master into 410c673 on openSUSE:master.

[jreidinger]

so if I get it, it generate pot file only from web part and not from service ( aka ruby code ) and from rust code?

[lslezak]

Yes, web frontend only. As noted in the TODO above, this should be replaced by some other script.

[coveralls]

Changes unknown
when pulling a25b916 on lslezak:master
into ** on openSUSE:master**.