/
encode.go
84 lines (71 loc) · 1.39 KB
/
encode.go
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package log
import (
"fmt"
"math"
"strconv"
"time"
"go.uber.org/zap/zapcore"
)
type color uint8
const (
black color = iota + 30
red
green
yellow
blue
magenta
cyan
white
)
func (c color) Add(s string) string {
if c == 0 {
return s
}
return fmt.Sprintf("\x1b[%dm%s\x1b[0m", uint8(c), s)
}
func nameEncoder(debug bool) func(loggerName string, enc zapcore.PrimitiveArrayEncoder) {
return func(loggerName string, enc zapcore.PrimitiveArrayEncoder) {
var c color
if debug {
c = green
}
enc.AppendString(c.Add(loggerName))
}
}
func timeEncoder(debug bool) func(t time.Time, enc zapcore.PrimitiveArrayEncoder) {
return func(t time.Time, enc zapcore.PrimitiveArrayEncoder) {
if !debug {
zapcore.EpochTimeEncoder(t, enc)
return
}
const layout = "2006-01-02T15:04:05.000Z0700" // ISO8601TimeEncoder.
formatted := t.Format(layout)
var c color
if debug {
c = yellow
}
enc.AppendString(c.Add(formatted))
}
}
func levelEncoder(debug bool) func(l zapcore.Level, enc zapcore.PrimitiveArrayEncoder) {
return func(l zapcore.Level, enc zapcore.PrimitiveArrayEncoder) {
vl := math.Abs(float64(l))
level := strconv.FormatFloat(vl, 'f', 0, 64)
if !debug {
enc.AppendString(level)
return
}
var c color
switch {
case vl == 2:
c = red
case vl >= 0:
c = cyan
default:
c = white
}
enc.AppendString(
c.Add(fmt.Sprintf("V(%s)", level)),
)
}
}