mirror of
https://github.com/chrislusf/seaweedfs
synced 2024-05-20 10:20:00 +02:00
115 lines
2.2 KiB
Go
115 lines
2.2 KiB
Go
package util
|
|
|
|
import (
|
|
"errors"
|
|
"os"
|
|
"os/user"
|
|
"path/filepath"
|
|
"strings"
|
|
"time"
|
|
|
|
"github.com/chrislusf/seaweedfs/weed/glog"
|
|
)
|
|
|
|
func TestFolderWritable(folder string) (err error) {
|
|
fileInfo, err := os.Stat(folder)
|
|
if err != nil {
|
|
return err
|
|
}
|
|
if !fileInfo.IsDir() {
|
|
return errors.New("Not a valid folder!")
|
|
}
|
|
perm := fileInfo.Mode().Perm()
|
|
glog.V(0).Infoln("Folder", folder, "Permission:", perm)
|
|
if 0200&perm != 0 {
|
|
return nil
|
|
}
|
|
return errors.New("Not writable!")
|
|
}
|
|
|
|
func GetFileSize(file *os.File) (size int64, err error) {
|
|
var fi os.FileInfo
|
|
if fi, err = file.Stat(); err == nil {
|
|
size = fi.Size()
|
|
}
|
|
return
|
|
}
|
|
|
|
func FileExists(filename string) bool {
|
|
|
|
_, err := os.Stat(filename)
|
|
if os.IsNotExist(err) {
|
|
return false
|
|
}
|
|
return true
|
|
|
|
}
|
|
|
|
func CheckFile(filename string) (exists, canRead, canWrite bool, modTime time.Time, fileSize int64) {
|
|
exists = true
|
|
fi, err := os.Stat(filename)
|
|
if os.IsNotExist(err) {
|
|
exists = false
|
|
return
|
|
}
|
|
if err != nil {
|
|
glog.Errorf("check %s: %v", filename, err)
|
|
return
|
|
}
|
|
if fi.Mode()&0400 != 0 {
|
|
canRead = true
|
|
}
|
|
if fi.Mode()&0200 != 0 {
|
|
canWrite = true
|
|
}
|
|
modTime = fi.ModTime()
|
|
fileSize = fi.Size()
|
|
return
|
|
}
|
|
|
|
func ResolvePath(path string) string {
|
|
|
|
if !strings.Contains(path, "~") {
|
|
return path
|
|
}
|
|
|
|
usr, _ := user.Current()
|
|
dir := usr.HomeDir
|
|
|
|
if path == "~" {
|
|
// In case of "~", which won't be caught by the "else if"
|
|
path = dir
|
|
} else if strings.HasPrefix(path, "~/") {
|
|
// Use strings.HasPrefix so we don't match paths like
|
|
// "/something/~/something/"
|
|
path = filepath.Join(dir, path[2:])
|
|
}
|
|
|
|
return path
|
|
}
|
|
|
|
func FileNameBase(filename string) string {
|
|
lastDotIndex := strings.LastIndex(filename, ".")
|
|
if lastDotIndex < 0 {
|
|
return filename
|
|
}
|
|
return filename[:lastDotIndex]
|
|
}
|
|
|
|
// Copied from os.WriteFile(), adding file sync.
|
|
// see https://github.com/golang/go/issues/20599
|
|
func WriteFile(name string, data []byte, perm os.FileMode) error {
|
|
f, err := os.OpenFile(name, os.O_WRONLY|os.O_CREATE|os.O_TRUNC, perm)
|
|
if err != nil {
|
|
return err
|
|
}
|
|
_, err = f.Write(data)
|
|
if err1 := f.Sync(); err1 != nil && err == nil {
|
|
err = err1
|
|
}
|
|
if err1 := f.Close(); err1 != nil && err == nil {
|
|
err = err1
|
|
}
|
|
return err
|
|
}
|