gitea/models/db
wxiaoguang 042cac5fed
Improve install code to avoid low-level mistakes. ()
* 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).
..
install Improve install code to avoid low-level mistakes. ()
paginator Decouple unit test code from business code ()
context.go Remove NewSession method from db.Engine interface ()
convert.go Move db related basic functions to models/db ()
engine.go Improve install code to avoid low-level mistakes. ()
error.go Move user related model into models/user ()
index.go Fix commit status index problem ()
list_options.go Remove NewSession method from db.Engine interface ()
log.go Move db related basic functions to models/db ()
name.go Move user related model into models/user ()
search.go Move user related model into models/user ()
sequence.go Move db related basic functions to models/db ()
sql_postgres_with_schema.go Move db related basic functions to models/db ()