Files
vuls/util/logutil.go

99 lines
2.4 KiB
Go

package util
import (
"flag"
"fmt"
"io/ioutil"
"os"
"path/filepath"
"runtime"
"github.com/rifflock/lfshook"
"github.com/sirupsen/logrus"
"github.com/future-architect/vuls/config"
formatter "github.com/kotakanbe/logrus-prefixed-formatter"
)
// Log for localhsot
var Log *logrus.Entry
func init() {
log := logrus.New()
log.Out = ioutil.Discard
fields := logrus.Fields{"prefix": ""}
Log = log.WithFields(fields)
}
// NewCustomLogger creates logrus
func NewCustomLogger(c config.ServerInfo) *logrus.Entry {
log := logrus.New()
log.Formatter = &formatter.TextFormatter{MsgAnsiColor: c.LogMsgAnsiColor}
log.Level = logrus.InfoLevel
if config.Conf.Debug {
log.Level = logrus.DebugLevel
}
if flag.Lookup("test.v") != nil {
return logrus.NewEntry(log)
}
// File output
logDir := GetDefaultLogDir()
if 0 < len(config.Conf.LogDir) {
logDir = config.Conf.LogDir
}
// Only log to a file if quiet mode enabled
if config.Conf.Quiet && flag.Lookup("test.v") == nil {
if _, err := os.Stat(logDir); os.IsNotExist(err) {
if err := os.Mkdir(logDir, 0700); err != nil {
log.Errorf("Failed to create log directory. path: %s, err: %s", logDir, err)
}
}
logFile := logDir + "/vuls.log"
if file, err := os.OpenFile(logFile, os.O_CREATE|os.O_WRONLY|os.O_APPEND, 0644); err == nil {
log.Out = file
} else {
log.Out = os.Stderr
log.Errorf("Failed to create log file. path: %s, err: %s", logFile, err)
}
} else {
log.Out = os.Stderr
}
whereami := "localhost"
if 0 < len(c.ServerName) {
whereami = c.GetServerName()
}
if _, err := os.Stat(logDir); err == nil {
path := filepath.Join(logDir, fmt.Sprintf("%s.log", whereami))
if _, err := os.OpenFile(path, os.O_CREATE|os.O_WRONLY|os.O_APPEND, 0644); err == nil {
log.Hooks.Add(lfshook.NewHook(lfshook.PathMap{
logrus.DebugLevel: path,
logrus.InfoLevel: path,
logrus.WarnLevel: path,
logrus.ErrorLevel: path,
logrus.FatalLevel: path,
logrus.PanicLevel: path,
}, nil))
} else {
log.Errorf("Failed to create log file. path: %s, err: %s", path, err)
}
}
fields := logrus.Fields{"prefix": whereami}
return log.WithFields(fields)
}
// GetDefaultLogDir returns default log directory
func GetDefaultLogDir() string {
defaultLogDir := "/var/log/vuls"
if runtime.GOOS == "windows" {
defaultLogDir = filepath.Join(os.Getenv("APPDATA"), "vuls")
}
return defaultLogDir
}