自己实现的一个log
至少符合我的习惯。使用简单, 当然别人的使用方式也不难。 它可以非常细腻的控制，定制化。
名字和golang/glog 重复了。这点也不用在意。至少它的风格和我们不符。我也是学习了它的源码，经过自己的构思。
没有用sync.Mutex. 使用可以支持并发写入的环形队列。
https://github.com/slclub/glog
# glog
golang logger manager
### Summary
Log plug-ins that can be customized appropriately. Support concurrent logging.We used the ring queue and sync.Pool .
and use queue instead of lock(sync.Mutex) write security. Easy to use. Customized. Log files can be customized by size and date. Both supported.
### Install
`go get github.com/slclub/glog`
`go mod`
### Let's starts.
If you don't want set your path, debug, time and so on. It can still be used
- Import
`import "github.com/slclub/glog"`
- API
Like fmt.Pringln
```go
glog.Info("[HELLO][WORLD]", "MY FIST START", "PID[", int , "]")
glog.Debug("[HELLO][WORLD]", "MY FIST START", "PID[", int , "]")
glog.Warn("[HELLO][WORLD]", "MY FIST START", "PID[", int , "]")
glog.Error("[HELLO][WORLD]", "MY FIST START", "PID[", int , "]")
glog.Fatal("[HELLO][WORLD]", "MY FIST START", "PID[", int , "]")
```
- An example.
```go
func concurrencyLog(send_time int) {
for i := 0; i < send_time; i++ {
glog.Debug("testing something.")
glog.Info("Oh my god. you are so clever.")
glog.Warnning("an waring log!")
}
fmt.Println("[PRINT][FINISH]")
}
func main() {
glog.Set("path", "", "mylog")
go concurrencyLog(1000)
go concurrencyLog(1000)
time.Sleep(1800 * time.Second)
}
```
- Log default style. before you customized
```go
2020-05-20 00:20:38 INFO Oh my god. you are so clever.
2020-05-20 00:20:38 WARN an waring log!
2020-05-20 00:20:38 DEBUG testing something.
2020-05-20 00:20:38 INFO Oh my god. you are so clever.
2020-05-20 00:20:38 WARN an waring log!
2020-05-20 00:20:38 DEBUG testing something.
2020-05-20 00:20:38 INFO Oh my god. you are so clever.
```
### Customized
It's actually a function
`Set(field string, value ...interface{})`
In you code maybe like `glog.Set(xxx, xxx)`
- Log file path setting.
```go
// log file abs path and relative path. can both set them.
// In fact, the two paths correspond to the project path and its path respectively
// You can choose only one of them to set.
Set("path", "abs_path", "rel_path")
```
- Log name prefix
```go
// We offen concatenated log name with string and time and random number.
// here you just set the string part of the name.
Set("name", "kawayi")
```
- Log time settings
```go
// Need to hide the time of each log line
// false : hidden, true: show ;
// default format : 2020-50-19 00:00:00
Set("show_time", false)
```
- Log head info
```go
// Log files are changed. when a new file was created. this string you added will be set to top of file.
Set("head", "auth@kawayi\nBbegin a new log every day\n")
```
- Log debug settings.
```go
// false: Hide data printed by a Debug method. true: show all
Set("debug", false)
// The second param also can be a number. The permission setting here is designed by bit calculation
// Add and subtract are supported for these numbers. You can use addition and subtraction to control permissions
// Very delicate to control
Set("debug", int)
const (
// LEVEL
LEVEL_INFO = 1
LEVEL_DEBUG = 2
LEVEL_WARNNING = 4
LEVEL_ERROR = 8
LEVEL_FATAL = 16
TRACE_INFO = 32
TRACE_DEBUG = 64
TRACE_WARNNING = 128
TRACE_ERROR = 256
TRACE_FATAL = 512
)
```
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