* Improve install code to avoid low-level mistakes.
If a user tries to do a re-install in a Gitea database, they gets a warning and double check.
When Gitea runs, it never create empty app.ini automatically.
Also some small (related) refactoring:
* Refactor db.InitEngine related logic make it more clean (especially for the install code)
* Move some i18n strings out from setting.go to make the setting.go can be easily maintained.
* Show errors in CLI code if an incorrect app.ini is used.
* APP_DATA_PATH is created when installing, and checked when starting (no empty directory is created any more).
* Run Migrate in Install rather than just SyncTables
The underlying problem in #17328 appears to be that users are re-running the install
page during upgrades. The function that tests and creates the db did not intend for
this and thus instead the migration scripts being run - a simple sync tables occurs.
This then causes a weird partially migrated DB which causes, in this release cycle,
the duplicate column in task table error. It is likely the cause of some weird
partial migration errors in other cycles too.
This PR simply ensures that the migration scripts are also run at this point too.
Fix #17328
Signed-off-by: Andrew Thornton <art27@cantab.net>
* refactor routers directory
* move func used for web and api to common
* make corsHandler a function to prohibit side efects
* rm unused func
Co-authored-by: 6543 <6543@obermui.de>
