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- // Copyright 2015 Google Inc. All Rights Reserved.
- //
- // 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 fusetesting
- import (
- "fmt"
- "os"
- "path"
- "sort"
- )
- type sortedEntries []os.FileInfo
- func (f sortedEntries) Len() int { return len(f) }
- func (f sortedEntries) Less(i, j int) bool { return f[i].Name() < f[j].Name() }
- func (f sortedEntries) Swap(i, j int) { f[i], f[j] = f[j], f[i] }
- // Read the directory with the given name and return a list of directory
- // entries, sorted by name.
- //
- // Unlike ioutil.ReadDir (cf. http://goo.gl/i0nNP4), this function does not
- // silently ignore "file not found" errors when stat'ing the names read from
- // the directory.
- func ReadDirPicky(dirname string) (entries []os.FileInfo, err error) {
- // Open the directory.
- f, err := os.Open(dirname)
- if err != nil {
- err = fmt.Errorf("Open: %v", err)
- return
- }
- // Don't forget to close it later.
- defer func() {
- closeErr := f.Close()
- if closeErr != nil && err == nil {
- err = fmt.Errorf("Close: %v", closeErr)
- }
- }()
- // Read all of the names from the directory.
- names, err := f.Readdirnames(-1)
- if err != nil {
- err = fmt.Errorf("Readdirnames: %v", err)
- return
- }
- // Stat each one.
- for _, name := range names {
- var fi os.FileInfo
- fi, err = os.Lstat(path.Join(dirname, name))
- if err != nil {
- err = fmt.Errorf("Lstat(%s): %v", name, err)
- return
- }
- entries = append(entries, fi)
- }
- // Sort the entries by name.
- sort.Sort(sortedEntries(entries))
- return
- }
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