filebrowser/fileutils/dir.go

100 lines
1.7 KiB
Go

package fileutils
import (
"errors"
"path/filepath"
"github.com/spf13/afero"
)
// CopyDir copies a directory from source to dest and all
// of its sub-directories. It doesn't stop if it finds an error
// during the copy. Returns an error if any.
func CopyDir(fs afero.Fs, source, dest string) error {
// Get properties of source.
srcinfo, err := fs.Stat(source)
if err != nil {
return err
}
// Create the destination directory.
err = fs.MkdirAll(dest, srcinfo.Mode())
if err != nil {
return err
}
dir, _ := fs.Open(source)
obs, err := dir.Readdir(-1)
if err != nil {
return err
}
var errs []error
for _, obj := range obs {
fsource := source + "/" + obj.Name()
fdest := dest + "/" + obj.Name()
if obj.IsDir() {
// Create sub-directories, recursively.
err = CopyDir(fs, fsource, fdest)
if err != nil {
errs = append(errs, err)
}
} else {
// Perform the file copy.
err = CopyFile(fs, fsource, fdest)
if err != nil {
errs = append(errs, err)
}
}
}
var errString string
for _, err := range errs {
errString += err.Error() + "\n"
}
if errString != "" {
return errors.New(errString)
}
return nil
}
func DiskUsage(fs afero.Fs, path string) (size, inodes int64, err error) {
lst, ok := fs.(afero.Lstater)
if !ok {
return 0, 0, err
}
info, _, err := lst.LstatIfPossible(path)
if err != nil {
return 0, 0, err
}
size = info.Size()
inodes = int64(1)
// don't follow symlinks
if !info.IsDir() {
return size, inodes, err
}
afs := &afero.Afero{Fs: fs}
dir, err := afs.ReadDir(path)
if err != nil {
return size, inodes, err
}
for _, fi := range dir {
s, i, e := DiskUsage(fs, filepath.Join(path, fi.Name()))
if e == nil {
size += s
inodes += i
}
}
return size, inodes, err
}