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forgejo/models/db/log.go
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>
2023-05-21 22:35:11 +00:00

107 lines
2.5 KiB
Go

// Copyright 2017 The Gitea Authors. All rights reserved.
// SPDX-License-Identifier: MIT
package db
import (
"fmt"
"sync/atomic"
"code.gitea.io/gitea/modules/log"
xormlog "xorm.io/xorm/log"
)
// XORMLogBridge a logger bridge from Logger to xorm
type XORMLogBridge struct {
showSQL atomic.Bool
logger log.Logger
}
// NewXORMLogger inits a log bridge for xorm
func NewXORMLogger(showSQL bool) xormlog.Logger {
l := &XORMLogBridge{logger: log.GetLogger("xorm")}
l.showSQL.Store(showSQL)
return l
}
const stackLevel = 8
// Log a message with defined skip and at logging level
func (l *XORMLogBridge) Log(skip int, level log.Level, format string, v ...interface{}) {
l.logger.Log(skip+1, level, format, v...)
}
// Debug show debug log
func (l *XORMLogBridge) Debug(v ...interface{}) {
l.Log(stackLevel, log.DEBUG, "%s", fmt.Sprint(v...))
}
// Debugf show debug log
func (l *XORMLogBridge) Debugf(format string, v ...interface{}) {
l.Log(stackLevel, log.DEBUG, format, v...)
}
// Error show error log
func (l *XORMLogBridge) Error(v ...interface{}) {
l.Log(stackLevel, log.ERROR, "%s", fmt.Sprint(v...))
}
// Errorf show error log
func (l *XORMLogBridge) Errorf(format string, v ...interface{}) {
l.Log(stackLevel, log.ERROR, format, v...)
}
// Info show information level log
func (l *XORMLogBridge) Info(v ...interface{}) {
l.Log(stackLevel, log.INFO, "%s", fmt.Sprint(v...))
}
// Infof show information level log
func (l *XORMLogBridge) Infof(format string, v ...interface{}) {
l.Log(stackLevel, log.INFO, format, v...)
}
// Warn show warning log
func (l *XORMLogBridge) Warn(v ...interface{}) {
l.Log(stackLevel, log.WARN, "%s", fmt.Sprint(v...))
}
// Warnf show warnning log
func (l *XORMLogBridge) Warnf(format string, v ...interface{}) {
l.Log(stackLevel, log.WARN, format, v...)
}
// Level get logger level
func (l *XORMLogBridge) Level() xormlog.LogLevel {
switch l.logger.GetLevel() {
case log.TRACE, log.DEBUG:
return xormlog.LOG_DEBUG
case log.INFO:
return xormlog.LOG_INFO
case log.WARN:
return xormlog.LOG_WARNING
case log.ERROR:
return xormlog.LOG_ERR
case log.NONE:
return xormlog.LOG_OFF
}
return xormlog.LOG_UNKNOWN
}
// SetLevel set the logger level
func (l *XORMLogBridge) SetLevel(lvl xormlog.LogLevel) {
}
// ShowSQL set if record SQL
func (l *XORMLogBridge) ShowSQL(show ...bool) {
if len(show) == 0 {
show = []bool{true}
}
l.showSQL.Store(show[0])
}
// IsShowSQL if record SQL
func (l *XORMLogBridge) IsShowSQL() bool {
return l.showSQL.Load()
}