102 lines
1.7 KiB
Go
102 lines
1.7 KiB
Go
package logging
|
|
|
|
import (
|
|
"fmt"
|
|
"io"
|
|
"os"
|
|
"strings"
|
|
"sync"
|
|
"time"
|
|
|
|
"github.com/pkg/errors"
|
|
)
|
|
|
|
type Logger struct {
|
|
file io.WriteCloser
|
|
toStdout bool
|
|
mut sync.Mutex
|
|
}
|
|
|
|
// NewLogger creates a Logger instance with given filename and
|
|
// toStdout tells wether to write to Stdout as well or not.
|
|
func NewLogger(path string, toStdout bool) (*Logger, error) {
|
|
f, err := os.OpenFile(path, os.O_WRONLY|os.O_APPEND|os.O_CREATE, 0660)
|
|
if err != nil {
|
|
return nil, errors.Wrap(err, "failed to open log file")
|
|
}
|
|
|
|
return &Logger{file: f, toStdout: toStdout}, nil
|
|
}
|
|
|
|
func (l *Logger) Println(v ...interface{}) {
|
|
l.mut.Lock()
|
|
|
|
nowStr := time.Now().UTC().Format(time.RFC3339)
|
|
|
|
fmt.Fprintln(l.file, nowStr, v)
|
|
|
|
if l.toStdout {
|
|
fmt.Println(nowStr, v)
|
|
}
|
|
|
|
l.mut.Unlock()
|
|
}
|
|
|
|
func (l *Logger) Printf(format string, v ...interface{}) {
|
|
l.mut.Lock()
|
|
|
|
// Ensure a new line will be written
|
|
if !strings.HasSuffix(format, "\n") {
|
|
format += "\n"
|
|
}
|
|
|
|
nowStr := time.Now().UTC().Format(time.RFC3339)
|
|
|
|
fmt.Fprintf(l.file, nowStr+" "+format, v...)
|
|
|
|
if l.toStdout {
|
|
fmt.Printf(nowStr+" "+format, v...)
|
|
}
|
|
|
|
l.mut.Unlock()
|
|
}
|
|
|
|
func (l *Logger) Fatalln(v ...interface{}) {
|
|
l.mut.Lock()
|
|
|
|
nowStr := time.Now().UTC().Format(time.RFC3339)
|
|
|
|
fmt.Fprintln(l.file, nowStr, v)
|
|
|
|
if l.toStdout {
|
|
fmt.Println(nowStr, v)
|
|
}
|
|
|
|
l.file.Close()
|
|
os.Exit(1)
|
|
}
|
|
|
|
func (l *Logger) Fatalf(format string, v ...interface{}) {
|
|
l.mut.Lock()
|
|
|
|
// Ensure a new line will be written
|
|
if !strings.HasSuffix(format, "\n") {
|
|
format += "\n"
|
|
}
|
|
|
|
nowStr := time.Now().UTC().Format(time.RFC3339)
|
|
|
|
fmt.Fprintf(l.file, nowStr+" "+format, v...)
|
|
|
|
if l.toStdout {
|
|
fmt.Printf(nowStr+" "+format, v...)
|
|
}
|
|
|
|
l.file.Close()
|
|
os.Exit(1)
|
|
}
|
|
|
|
func (l *Logger) Close() error {
|
|
return l.file.Close()
|
|
}
|