* DBContext is just a Context

This PR removes some of the specialness from the DBContext and makes it context
This allows us to simplify the GetEngine code to wrap around any context in future
and means that we can change our loadRepo(e Engine) functions to simply take contexts.

Signed-off-by: Andrew Thornton <art27@cantab.net>

* fix unit tests

Signed-off-by: Andrew Thornton <art27@cantab.net>

* another place that needs to set the initial context

Signed-off-by: Andrew Thornton <art27@cantab.net>

* avoid race

Signed-off-by: Andrew Thornton <art27@cantab.net>

* change attachment error

Signed-off-by: Andrew Thornton <art27@cantab.net>

* Move db related basic functions to models/db

* Fix lint

* Fix lint

* Fix test

* Fix lint

* Fix lint

* revert unnecessary change

* Fix test

* Fix wrong replace string

* Use *Context

* Correct committer spelling and fix wrong replaced words

Co-authored-by: zeripath <art27@cantab.net>

* chore: rewrite format.

* chore: update format

Signed-off-by: Bo-Yi Wu <appleboy.tw@gmail.com>

* chore: update format

Signed-off-by: Bo-Yi Wu <appleboy.tw@gmail.com>

* chore: Adjacent parameters with the same type should be grouped together

* chore: update format.

In #12379 it was discovered that enry v2 has a maximum language length
of 34 characters which is larger than the 30 previously provided.

This PR updates the language column to 50.

Fix #12379

* Fix language stat calculation

* Group languages and ignore 0 size files

* remove unneeded code

* Change language statistics to save size instead of percentage in database

Co-Authored-By: Cirno the Strongest <1447794+CirnoT@users.noreply.github.com>

* Do not exclude if only language

* Fix edge cases with special langauges

Co-authored-by: Cirno the Strongest <1447794+CirnoT@users.noreply.github.com>

* Update header.tmpl

* Update _repository.less

* Update pull.go

* Update indexer.go

* Update pull.go

* Update pull.go

* Update indexer.go

* fix forked repo doesn't have language stat

* fix forked repo doesn't have language stat

* fix forked repo doesn't have language stat

* fix forked repo doesn't have language stat

* fix forked repo doesn't have language stat

* fix forked repo doesn't have language stat

* fix forked repo doesn't have language stat

* fix forked repo doesn't have language stat

* fix forked repo doesn't have language stat

* fix forked repo doesn't have language stat

* fix forked repo doesn't have language stat

Thanks the advice from lunny and 6543.

* fix forked repo doesn't have language stat

Modified as suggested by 6543.

* fix forked repo doesn't have language stat

simplify the function.

* fix forked repo doesn't have language stat

update the indexer after the loop

Co-authored-by: techknowlogick <techknowlogick@gitea.io>
Co-authored-by: Lauris BH <lauris@nix.lv>

Fix test and switch to unique queue

Fix MySQL support when deleting old statistics

* Implementation for calculating language statistics

Impement saving code language statistics to database

Implement rendering langauge stats

Add primary laguage to show in repository list

Implement repository stats indexer queue

Add indexer test

Refactor to use queue module

* Do not timeout for queues