platform_build_blueprint/pathtools/glob.go
Colin Cross 8e0c51192a Add license headers and LICENSE file
Change-Id: I6f7c7374093c0745ee4aa677480376a06648b358
2015-01-23 14:23:27 -08:00

61 lines
1.6 KiB
Go

// Copyright 2014 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 pathtools
import (
"path/filepath"
"strings"
)
// Glob returns the list of files that match the given pattern along with the
// list of directories that were searched to construct the file list.
func Glob(pattern string) (matches, dirs []string, err error) {
matches, err = filepath.Glob(pattern)
if err != nil {
return nil, nil, err
}
wildIndices := wildElements(pattern)
if len(wildIndices) > 0 {
for _, match := range matches {
dir := filepath.Dir(match)
dirElems := strings.Split(dir, string(filepath.Separator))
for _, index := range wildIndices {
dirs = append(dirs, strings.Join(dirElems[:index],
string(filepath.Separator)))
}
}
}
return
}
func wildElements(pattern string) []int {
elems := strings.Split(pattern, string(filepath.Separator))
var result []int
for i, elem := range elems {
if isWild(elem) {
result = append(result, i)
}
}
return result
}
func isWild(pattern string) bool {
return strings.ContainsAny(pattern, "*?[")
}