79 lines
1.5 KiB
Go
79 lines
1.5 KiB
Go
package logs
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import (
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"encoding/json"
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"log"
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"os"
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"runtime"
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)
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type Brush func(string) string
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func NewBrush(color string) Brush {
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pre := "\033["
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reset := "\033[0m"
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return func(text string) string {
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return pre + color + "m" + text + reset
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}
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}
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var colors = []Brush{
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NewBrush("1;36"), // Trace cyan
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NewBrush("1;34"), // Debug blue
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NewBrush("1;32"), // Info green
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NewBrush("1;33"), // Warn yellow
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NewBrush("1;31"), // Error red
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NewBrush("1;35"), // Critical purple
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}
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// ConsoleWriter implements LoggerInterface and writes messages to terminal.
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type ConsoleWriter struct {
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lg *log.Logger
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Level int `json:"level"`
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}
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// create ConsoleWriter returning as LoggerInterface.
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func NewConsole() LoggerInterface {
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cw := new(ConsoleWriter)
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cw.lg = log.New(os.Stdout, "", log.Ldate|log.Ltime)
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cw.Level = LevelTrace
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return cw
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}
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// init console logger.
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// jsonconfig like '{"level":LevelTrace}'.
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func (c *ConsoleWriter) Init(jsonconfig string) error {
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err := json.Unmarshal([]byte(jsonconfig), c)
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if err != nil {
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return err
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}
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return nil
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}
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// write message in console.
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func (c *ConsoleWriter) WriteMsg(msg string, level int) error {
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if level < c.Level {
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return nil
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}
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if goos := runtime.GOOS; goos == "windows" {
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c.lg.Println(msg)
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} else {
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c.lg.Println(colors[level](msg))
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}
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return nil
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}
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// implementing method. empty.
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func (c *ConsoleWriter) Destroy() {
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}
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// implementing method. empty.
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func (c *ConsoleWriter) Flush() {
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}
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func init() {
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Register("console", NewConsole)
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}
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