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logger.go
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/
logger.go
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package cliutil
import (
"io"
"os"
"path/filepath"
"sync"
"k8s.io/client-go/util/homedir"
)
const (
glooDir = ".gloo"
glooLogs = "debug.log"
)
var (
glooPath string
glooLogsPath string
logger io.Writer
mutex sync.Once
)
func init() {
home := homedir.HomeDir()
glooPath = filepath.Join(home, glooDir)
glooLogsPath = filepath.Join(glooPath, glooLogs)
}
func GetLogsPath() string {
return glooLogsPath
}
func GetLogger() io.Writer {
Initialize()
return logger
}
func Initialize() error {
var initError error
mutex.Do(func() {
if _, err := os.ReadDir(glooPath); err != nil {
if !os.IsNotExist(err) {
initError = err
return
}
err = os.Mkdir(glooPath, 0755)
if err != nil {
initError = err
return
}
}
file, err := os.OpenFile(glooLogsPath, os.O_APPEND|os.O_CREATE|os.O_WRONLY, 0644)
if err != nil {
initError = err
return
}
logger = file
})
if initError != nil {
logger = os.Stdout
}
return initError
}