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wxiaoguang 4647660776
Rewrite logger system (#24726)
## ⚠️ Breaking

The `log.<mode>.<logger>` style config has been dropped. If you used it,
please check the new config manual & app.example.ini to make your
instance output logs as expected.

Although many legacy options still work, it's encouraged to upgrade to
the new options.

The SMTP logger is deleted because SMTP is not suitable to collect logs.

If you have manually configured Gitea log options, please confirm the
logger system works as expected after upgrading.

## Description

Close #12082 and maybe more log-related issues, resolve some related
FIXMEs in old code (which seems unfixable before)

Just like rewriting queue #24505 : make code maintainable, clear legacy
bugs, and add the ability to support more writers (eg: JSON, structured
log)

There is a new document (with examples): `logging-config.en-us.md`

This PR is safer than the queue rewriting, because it's just for
logging, it won't break other logic.

## The old problems

The logging system is quite old and difficult to maintain:
* Unclear concepts: Logger, NamedLogger, MultiChannelledLogger,
SubLogger, EventLogger, WriterLogger etc
* Some code is diffuclt to konw whether it is right:
`log.DelNamedLogger("console")` vs `log.DelNamedLogger(log.DEFAULT)` vs
`log.DelLogger("console")`
* The old system heavily depends on ini config system, it's difficult to
create new logger for different purpose, and it's very fragile.
* The "color" trick is difficult to use and read, many colors are
unnecessary, and in the future structured log could help
* It's difficult to add other log formats, eg: JSON format
* The log outputer doesn't have full control of its goroutine, it's
difficult to make outputer have advanced behaviors
* The logs could be lost in some cases: eg: no Fatal error when using
CLI.
* Config options are passed by JSON, which is quite fragile.
* INI package makes the KEY in `[log]` section visible in `[log.sub1]`
and `[log.sub1.subA]`, this behavior is quite fragile and would cause
more unclear problems, and there is no strong requirement to support
`log.<mode>.<logger>` syntax.


## The new design

See `logger.go` for documents.


## Screenshot

<details>


![image](https://github.com/go-gitea/gitea/assets/2114189/4462d713-ba39-41f5-bb08-de912e67e1ff)


![image](https://github.com/go-gitea/gitea/assets/2114189/b188035e-f691-428b-8b2d-ff7b2199b2f9)


![image](https://github.com/go-gitea/gitea/assets/2114189/132e9745-1c3b-4e00-9e0d-15eaea495dee)

</details>

## TODO

* [x] add some new tests
* [x] fix some tests
* [x] test some sub-commands (manually ....)

---------

Co-authored-by: Jason Song <i@wolfogre.com>
Co-authored-by: delvh <dev.lh@web.de>
Co-authored-by: Giteabot <teabot@gitea.io>
1 year ago
..
applications Change to vertical navbar layout for secondary navbar for repo/user/admin settings (#24246) 1 year ago
auth Update LDAP filters to include both username and email address (#24547) 1 year ago
base Optimize html templates (#22080) 2 years ago
emails Improve some modal action buttons (#24289) 1 year ago
org Fix template function DateTime (#24317) 1 year ago
packages Fix template function DateTime (#24317) 1 year ago
repo Add "Updated" column for admin repositories list (#24429) 1 year ago
runners Move secrets and runners settings to actions settings (#24200) 1 year ago
user Fix template function DateTime (#24317) 1 year ago
actions.tmpl Move secrets and runners settings to actions settings (#24200) 1 year ago
config.tmpl Rewrite logger system (#24726) 1 year ago
cron.tmpl Improve queue & process & stacktrace (#24636) 1 year ago
dashboard.tmpl Start cleaning the messy ".ui.left / .ui.right", improve label list page, fix stackable menu (#24393) 1 year ago
hook_new.tmpl Change to vertical navbar layout for secondary navbar for repo/user/admin settings (#24246) 1 year ago
hooks.tmpl Change to vertical navbar layout for secondary navbar for repo/user/admin settings (#24246) 1 year ago
layout_footer.tmpl Change to vertical navbar layout for secondary navbar for repo/user/admin settings (#24246) 1 year ago
layout_head.tmpl Change to vertical navbar layout for secondary navbar for repo/user/admin settings (#24246) 1 year ago
navbar.tmpl Improve queue & process & stacktrace (#24636) 1 year ago
notice.tmpl Modify width of ui container, fine tune css for settings pages and org header (#24315) 1 year ago
queue.tmpl Improve queue & process & stacktrace (#24636) 1 year ago
queue_manage.tmpl Improve queue & process & stacktrace (#24636) 1 year ago
stacktrace-row.tmpl Use auto-updating, natively hoverable, localized time elements (#23988) 1 year ago
stacktrace.tmpl Improve queue & process & stacktrace (#24636) 1 year ago