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cloudreve/pkg/util/io.go

47 lines
935 B

package util
import (
"io"
"os"
"path/filepath"
)
// Exists reports whether the named file or directory exists.
func Exists(name string) bool {
if _, err := os.Stat(name); err != nil {
if os.IsNotExist(err) {
return false
}
}
return true
}
// CreatNestedFile 给定path创建文件如果目录不存在就递归创建
func CreatNestedFile(path string) (*os.File, error) {
basePath := filepath.Dir(path)
if !Exists(basePath) {
err := os.MkdirAll(basePath, 0700)
if err != nil {
Log().Warning("无法创建目录,%s", err)
return nil, err
}
}
return os.Create(path)
}
// IsEmpty 返回给定目录是否为空目录
func IsEmpty(name string) (bool, error) {
f, err := os.Open(name)
if err != nil {
return false, err
}
defer f.Close()
_, err = f.Readdirnames(1) // Or f.Readdir(1)
if err == io.EOF {
return true, nil
}
return false, err // Either not empty or error, suits both cases
}