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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
..
filebuffer Add Debian package registry (#24426) 1 year ago
rotatingfilewriter Rewrite logger system (#24726) 1 year ago
color.go Modify luminance calculation and extract related functions into single files (#24586) 1 year ago
color_test.go Modify luminance calculation and extract related functions into single files (#24586) 1 year ago
error.go Use ErrInvalidArgument in packages (#22268) 2 years ago
file_unix.go Implement FSFE REUSE for golang files (#21840) 2 years ago
file_unix_test.go Implement FSFE REUSE for golang files (#21840) 2 years ago
file_windows.go Implement FSFE REUSE for golang files (#21840) 2 years ago
io.go Improve checkIfPRContentChanged (#22611) 1 year ago
keypair.go Add Alpine package registry (#23714) 1 year ago
keypair_test.go Use minio/sha256-simd for accelerated SHA256 (#23052) 1 year ago
legacy.go Implement FSFE REUSE for golang files (#21840) 2 years ago
legacy_test.go Implement FSFE REUSE for golang files (#21840) 2 years ago
pack.go Add support for incoming emails (#22056) 2 years ago
pack_test.go Add support for incoming emails (#22056) 2 years ago
paginate.go Implement FSFE REUSE for golang files (#21840) 2 years ago
paginate_test.go Implement FSFE REUSE for golang files (#21840) 2 years ago
path.go Use a general approach to access custom/static/builtin assets (#24022) 1 year ago
path_test.go Use a general approach to access custom/static/builtin assets (#24022) 1 year ago
remove.go Implement FSFE REUSE for golang files (#21840) 2 years ago
sanitize.go Implement FSFE REUSE for golang files (#21840) 2 years ago
sanitize_test.go Implement FSFE REUSE for golang files (#21840) 2 years ago
sec_to_time.go Implement FSFE REUSE for golang files (#21840) 2 years ago
sec_to_time_test.go Implement FSFE REUSE for golang files (#21840) 2 years ago
shellquote.go Implement FSFE REUSE for golang files (#21840) 2 years ago
shellquote_test.go Implement FSFE REUSE for golang files (#21840) 2 years ago
slice.go Improve utils of slices (#22379) 2 years ago
slice_test.go Use more specific test methods (#24265) 1 year ago
string.go Implement FSFE REUSE for golang files (#21840) 2 years ago
string_test.go Implement FSFE REUSE for golang files (#21840) 2 years ago
timer.go Rewrite queue (#24505) 1 year ago
timer_test.go Use a general approach to access custom/static/builtin assets (#24022) 1 year ago
truncate.go Introduce GiteaLocaleNumber custom element to handle number localization on pages. (#23861) 1 year ago
truncate_test.go Use more specific test methods (#24265) 1 year ago
url.go Implement FSFE REUSE for golang files (#21840) 2 years ago
util.go Merge template functions "dict/Dict/mergeinto" (#23932) 1 year ago
util_test.go Introduce GiteaLocaleNumber custom element to handle number localization on pages. (#23861) 1 year ago