func (f *TextFormatter) printColored(
b *bytes.Buffer,
entry *log.Entry,
keys []string,
timestampFormat string) {
var levelColor int
switch entry.Level {
case log.DebugLevel:
levelColor = gray
case log.WarnLevel:
levelColor = yellow
case log.ErrorLevel, log.FatalLevel, log.PanicLevel:
levelColor = red
default:
levelColor = blue
}
levelText := strings.ToUpper(entry.Level.String())[0:4]
if !f.FullTimestamp {
fmt.Fprintf(b, "\x1b[%dm%s\x1b[0m[%04d] %-44s ",
levelColor, levelText, miniTS(), entry.Message)
} else {
fmt.Fprintf(b, "\x1b[%dm%s\x1b[0m[%s] %-44s ",
levelColor,
levelText,
entry.Time.Format(timestampFormat),
entry.Message)
}
for _, k := range keys {
v := entry.Data[k]
switch v.(type) {
case golf.Golfs:
fields := golf.Fore(k, v)
for kk, vv := range fields {
switch vvt := vv.(type) {
case string:
if needsQuoting(vvt) {
fmt.Fprintf(b,
" \x1b[%dm%s\x1b[0m=%s",
levelColor, kk, vvt)
} else {
fmt.Fprintf(b,
" \x1b[%dm%s\x1b[0m=%q",
levelColor, kk, vvt)
}
default:
fmt.Fprintf(b,
" \x1b[%dm%s\x1b[0m=%+v",
levelColor, kk, vvt)
}
}
default:
fmt.Fprintf(b, " \x1b[%dm%s\x1b[0m=%+v", levelColor, k, v)
}
}
}
func (f *JSONFormatter) Format(entry *log.Entry) ([]byte, error) {
data := make(log.Fields, len(entry.Data)+3)
for k, v := range entry.Data {
switch v := v.(type) {
case golf.Golfs:
for ck, cv := range golf.Fore(k, v) {
data[ck] = cv
}
case error:
// Otherwise errors are ignored by `encoding/json`
// https://github.com/Sirupsen/logrus/issues/137
data[k] = v.Error()
default:
data[k] = v
}
}
prefixFieldClashes(data)
timestampFormat := f.TimestampFormat
if timestampFormat == "" {
timestampFormat = DefaultTimestampFormat
}
data["time"] = entry.Time.Format(timestampFormat)
data["msg"] = entry.Message
data["level"] = entry.Level.String()
serialized, err := json.Marshal(data)
if err != nil {
return nil, fmt.Errorf("Failed to marshal fields to JSON, %v", err)
}
return append(serialized, '\n'), nil
}
func (f *TextFormatter) appendKeyValue(
b *bytes.Buffer,
key string, value interface{}) {
switch value.(type) {
case golf.Golfs:
for ck, cv := range golf.Fore(key, value) {
f.appendKeyValue(b, ck, cv)
}
return
}
b.WriteString(key)
b.WriteByte('=')
switch value := value.(type) {
case string:
if needsQuoting(value) {
b.WriteString(value)
} else {
fmt.Fprintf(b, "%q", value)
}
case error:
errmsg := value.Error()
if needsQuoting(errmsg) {
b.WriteString(errmsg)
} else {
fmt.Fprintf(b, "%q", value)
}
default:
fmt.Fprint(b, value)
}
b.WriteByte(' ')
}