67 lines
1.5 KiB
Go
67 lines
1.5 KiB
Go
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// Copyright 2018 clair authors
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//
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// Licensed under the Apache License, Version 2.0 (the "License");
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// you may not use this file except in compliance with the License.
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// You may obtain a copy of the License at
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//
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// http://www.apache.org/licenses/LICENSE-2.0
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//
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// Unless required by applicable law or agreed to in writing, software
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// distributed under the License is distributed on an "AS IS" BASIS,
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// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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// See the License for the specific language governing permissions and
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// limitations under the License.
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// Package fsutil contains utility functions for file system querying.
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package fsutil
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import (
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"os"
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"strings"
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)
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type dirFilter int
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const (
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// All doesn't filter anything
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All dirFilter = iota
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// FilesOnly filters Dir function to return only files
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FilesOnly
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// DirectoriesOnly filters Dir function to return only directories
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DirectoriesOnly
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)
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// Readdir lists the files or folders under the given path and filter based on the
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// dirFilter.
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func Readdir(path string, filter dirFilter) ([]string, error) {
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dir, err := os.Open(path)
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if err != nil {
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return nil, err
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}
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defer dir.Close()
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finfos, err := dir.Readdir(0)
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if err != nil {
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return nil, err
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}
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var files []string
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for _, info := range finfos {
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if filter == DirectoriesOnly && !info.IsDir() {
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continue
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}
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if filter == FilesOnly && info.IsDir() {
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continue
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}
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if strings.HasPrefix(info.Name(), ".") {
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continue
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}
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files = append(files, info.Name())
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}
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return files, nil
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}
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