vlog implements io.Writer to roll and compress log file time every day, and encapsulate the use of Golang native log library
- implements io.Writer. You can easily use in golang log, GORM, grpclog etc.
- daily roll log, you can specific the log file name's prefix, default is process name
- compress to gz for old file
Example
To use vlog, you can:
go get github.com/zf1976/vlog@latestand import like this:
package main
import (
"github.com/zf1976/vlog"
"github.com/zf1976/vlog/timewriter"
)
func main() {
timeWriter := &timewriter.TimeWriter{
Dir: "./logs",
Compress: true,
ReserveDay: 30,
LogFilePrefix: "vlog",
}
log := vlog.New(timeWriter)
log.Info("hello vlog")
}If you need to set the output globally:
package main
import (
"github.com/zf1976/vlog"
"github.com/zf1976/vlog/timewriter"
"io"
"os"
)
func main() {
timeWriter := &timewriter.TimeWriter{
Dir: "./logs",
Compress: true,
ReserveDay: 30,
LogFilePrefix: "vlog",
}
w := io.MultiWriter(os.Stdout, timeWriter)
vlog.SetOutput(w)
// global settings
logger := vlog.Default()
logger.Info("hello vlog")
}If you need to set the output globally and synchronize to the default log library:
package main
import (
"github.com/zf1976/vlog"
"github.com/zf1976/vlog/timewriter"
"io"
"log"
"os"
)
func main() {
timeWriter := &timewriter.TimeWriter{
Dir: "./logs",
Compress: true,
ReserveDay: 30,
LogFilePrefix: "vlog",
}
w := io.MultiWriter(os.Stdout, timeWriter)
// global settings
vlog.SetSyncOutput(true)
vlog.SetOutput(w)
logger := vlog.Default()
logger.Info("hello vlog")
log.Println("hello vlog")
}