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minio/fs-dir-others.go

107 lines
2.5 KiB

// +build !linux,!darwin,!openbsd,!freebsd,!netbsd,!dragonfly
/*
* Minio Cloud Storage, (C) 2016 Minio, Inc.
*
* Licensed under the Apache License, Version 2.0 (the "License");
* you may not use this file except in compliance with the License.
* You may obtain a copy of the License at
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS,
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* See the License for the specific language governing permissions and
* limitations under the License.
*/
package main
import (
"io"
"os"
"path/filepath"
"sort"
"strings"
)
// Read all directory entries, returns a list of lexically sorted entries.
func readDirAll(readDirPath, entryPrefixMatch string) ([]fsDirent, error) {
f, err := os.Open(readDirPath)
if err != nil {
return nil, err
}
defer f.Close()
var dirents []fsDirent
for {
fis, err := f.Readdir(1000)
if err != nil {
if err == io.EOF {
break
}
return nil, err
}
for _, fi := range fis {
dirent := fsDirent{
name: fi.Name(),
modTime: fi.ModTime(),
size: fi.Size(),
mode: fi.Mode(),
}
if dirent.IsDir() {
dirent.name += string(os.PathSeparator)
dirent.size = 0
}
if strings.HasPrefix(fi.Name(), entryPrefixMatch) {
dirents = append(dirents, dirent)
}
}
}
// Sort dirents.
sort.Sort(byDirentName(dirents))
return dirents, nil
}
// scans the directory dirPath, calling filter() on each directory
// entry. Entries for which filter() returns true are stored, lexically
// sorted using sort.Sort(). If filter is NULL, all entries are selected.
// If namesOnly is true, dirPath is not appended into entry name.
func scandir(dirPath string, filter func(fsDirent) bool, namesOnly bool) ([]fsDirent, error) {
d, err := os.Open(dirPath)
if err != nil {
return nil, err
}
defer d.Close()
var dirents []fsDirent
for {
fis, err := d.Readdir(1000)
if err != nil {
if err == io.EOF {
break
}
return nil, err
}
for _, fi := range fis {
dirent := fsDirent{
name: fi.Name(),
modTime: fi.ModTime(),
size: fi.Size(),
mode: fi.Mode(),
}
if !namesOnly {
dirent.name = filepath.Join(dirPath, dirent.name)
}
if dirent.IsDir() {
dirent.name += string(os.PathSeparator)
}
if filter == nil || filter(dirent) {
dirents = append(dirents, dirent)
}
}
}
sort.Sort(byDirentName(dirents))
return dirents, nil
}