| // 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" |
| ) |
| |
| // PrefixPaths returns a list of paths consisting of prefix joined with each |
| // element of paths. The resulting paths are "clean" in the filepath.Clean |
| // sense. |
| func PrefixPaths(paths []string, prefix string) []string { |
| result := make([]string, len(paths)) |
| for i, path := range paths { |
| result[i] = filepath.Join(prefix, path) |
| } |
| return result |
| } |
| |
| func ReplaceExtensions(paths []string, extension string) []string { |
| result := make([]string, len(paths)) |
| for i, path := range paths { |
| result[i] = ReplaceExtension(path, extension) |
| } |
| return result |
| } |
| |
| // ReplaceExtension changes the file extension. If the file does not have an |
| // extension, the new extension is appended. |
| func ReplaceExtension(path string, extension string) string { |
| oldExt := filepath.Ext(path) |
| if oldExt != "" { |
| path = strings.TrimSuffix(path, oldExt) |
| } |
| return path + "." + extension |
| } |