Files
slog/io.go

114 lines
2.3 KiB
Go

package slog
import (
"fmt"
"os"
)
func (l *Logger) Infof(format string, args ...any) {
l.print(INFO, fmt.Sprintf(format, args...))
}
func (l *Logger) Info(m ...any) {
l.print(INFO, m...)
}
func (l *Logger) Infoln(m ...any) {
l.println(INFO, m...)
}
func (l *Logger) Warnf(format string, args ...any) {
l.print(WARN, fmt.Sprintf(format, args...))
}
func (l *Logger) Warn(m ...any) {
l.print(WARN, m...)
}
func (l *Logger) Warnln(m ...any) {
l.println(WARN, m...)
}
func (l *Logger) Errorf(format string, args ...any) {
l.print(ERROR, fmt.Sprintf(format, args...))
}
func (l *Logger) Error(m ...any) {
l.print(ERROR, m...)
}
func (l *Logger) Errorln(m ...any) {
l.println(ERROR, m...)
}
func (l *Logger) Fatalf(format string, args ...any) {
l.print(FATAL, fmt.Sprintf(format, args...))
os.Exit(1)
}
func (l *Logger) Fatal(m ...any) {
l.print(FATAL, m...)
os.Exit(1)
}
func (l *Logger) Fatalln(m ...any) {
l.println(FATAL, m...)
os.Exit(1)
}
func (l *Logger) Debugf(format string, args ...any) {
l.print(DEBUG, fmt.Sprintf(format, args...))
}
func (l *Logger) Debug(m ...any) {
l.print(DEBUG, m...)
}
func (l *Logger) Debugln(m ...any) {
l.println(DEBUG, m...)
}
// Write message without trailing "\n"
// Good for database
func (l *Logger) print(level LogLevel, m ...any) {
if l.level.n < level.n {
return
}
if len(l.writers) == 0 {
return
}
tb := getFullTraceback(0)
for _, writer := range l.writers {
if writer == nil {
continue
}
err := writer.Print(level, l.prefix, tb, m...)
if err != nil {
l.reportWriterError(err)
}
}
}
// Docker requires "\n" at end to write to log.
// print not work for docker, otherwise it will work and write into stdout
func (l *Logger) println(level LogLevel, m ...any) {
if l.level.n < level.n {
return
}
if len(l.writers) == 0 {
return
}
tb := getFullTraceback(0)
messages := append(append(make([]any, 0, len(m)+1), m...), "\n")
for _, writer := range l.writers {
if writer == nil {
continue
}
err := writer.Print(level, l.prefix, tb, messages...)
if err != nil {
l.reportWriterError(err)
}
}
}
// reportWriterError writes internal writer failures directly to stderr to avoid
// re-entering the same logger path that just failed.
func (l *Logger) reportWriterError(err error) {
if err == nil {
return
}
_, _ = fmt.Fprintf(os.Stderr, "[%s] logger writer error: %v\n", l.prefix, err)
}