minio/pkg/ioutils/ioutils.go
Harshavardhana 497f13d733 api: Various fixes.
- limit list buckets to limit only 100 buckets, all uppercase buckets
  are now lowercase and work transparently with all calls.
- Change disk.Stat to disk.GetInfo and return back disk.Info{} struct.
- Introduce new ioutils package which implements ReadDirN(path, n),
  ReadDirNamesN(path, n)
2016-01-25 16:08:27 -08:00

46 lines
1.0 KiB
Go

package ioutils
import (
"os"
"sort"
)
// byName implements sort.Interface for sorting os.FileInfo list.
type byName []os.FileInfo
func (f byName) Len() int { return len(f) }
func (f byName) Less(i, j int) bool { return f[i].Name() < f[j].Name() }
func (f byName) Swap(i, j int) { f[i], f[j] = f[j], f[i] }
// ReadDirN reads the directory named by dirname and returns
// a list of sorted directory entries of size 'n'.
func ReadDirN(dirname string, n int) ([]os.FileInfo, error) {
f, err := os.Open(dirname)
if err != nil {
return nil, err
}
list, err := f.Readdir(n)
f.Close()
if err != nil {
return nil, err
}
sort.Sort(byName(list))
return list, nil
}
// ReadDirNamesN reads the directory named by dirname and returns
// a list of sorted directory names of size 'n'.
func ReadDirNamesN(dirname string, n int) ([]string, error) {
f, err := os.Open(dirname)
if err != nil {
return nil, err
}
names, err := f.Readdirnames(n)
f.Close()
if err != nil {
return nil, err
}
sort.Strings(names)
return names, nil
}