зеркало из https://github.com/microsoft/docker.git
40 строки
837 B
Go
40 строки
837 B
Go
|
// +build linux
|
||
|
|
|
||
|
|
package directory
|
||
|
|
|
||
|
|
import (
|
||
|
|
"os"
|
||
|
|
"path/filepath"
|
||
|
|
"syscall"
|
||
|
|
)
|
||
|
|
|
||
|
|
// Size walks a directory tree and returns its total size in bytes.
|
||
|
|
func Size(dir string) (size int64, err error) {
|
||
|
|
data := make(map[uint64]struct{})
|
||
|
|
err = filepath.Walk(dir, func(d string, fileInfo os.FileInfo, e error) error {
|
||
|
|
// Ignore directory sizes
|
||
|
|
if fileInfo == nil {
|
||
|
|
return nil
|
||
|
|
}
|
||
|
|
|
||
|
|
s := fileInfo.Size()
|
||
|
|
if fileInfo.IsDir() || s == 0 {
|
||
|
|
return nil
|
||
|
|
}
|
||
|
|
|
||
|
|
// Check inode to handle hard links correctly
|
||
|
|
inode := fileInfo.Sys().(*syscall.Stat_t).Ino
|
||
|
|
// inode is not a uint64 on all platforms. Cast it to avoid issues.
|
||
|
|
if _, exists := data[uint64(inode)]; exists {
|
||
|
|
return nil
|
||
|
|
}
|
||
|
|
// inode is not a uint64 on all platforms. Cast it to avoid issues.
|
||
|
|
data[uint64(inode)] = struct{}{}
|
||
|
|
|
||
|
|
size += s
|
||
|
|
|
||
|
|
return nil
|
||
|
|
})
|
||
|
|
return
|
||
|
|
}
|