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86 lines
2.0 KiB
86 lines
2.0 KiB
/*
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Copyright The Helm Authors.
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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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http://www.apache.org/licenses/LICENSE-2.0
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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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*/
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package loader
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import (
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"errors"
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"os"
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"path/filepath"
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"strings"
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)
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// ExpandLocalPath expands a local file, dir or glob path to a list of files
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func ExpandLocalPath(name string, path string) (map[string]string, error) {
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if strings.Contains(path, "*") {
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// if this is a glob, we expand it and return a list of files
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return expandGlob(name, path)
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}
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fi, err := os.Stat(path)
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if err != nil {
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return nil, err
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}
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if fi.IsDir() {
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// if this is a valid dir, we return all files within
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return expandDir(name, path)
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}
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// finally, this is a file, so we return it
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return map[string]string{name: path}, nil
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}
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func expandGlob(name string, path string) (map[string]string, error) {
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fmap := make(map[string]string)
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paths, err := filepath.Glob(path)
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if err != nil {
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return nil, err
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}
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if len(paths) == 0 {
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return nil, errors.New("empty glob")
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}
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namePrefix := strings.TrimRight(name, "/") + "/"
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for _, p := range paths {
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key := namePrefix + filepath.Base(p)
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fmap[key] = p
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}
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return fmap, nil
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}
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func expandDir(name string, path string) (map[string]string, error) {
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fmap := make(map[string]string)
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f, 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 f.Close()
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files, err := f.Readdir(-1)
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if err != nil {
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return nil, err
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}
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localDirName := strings.TrimRight(path, "/") + "/"
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namePrefix := strings.TrimRight(name, "/") + "/"
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for _, file := range files {
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key := namePrefix + file.Name()
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fmap[key] = localDirName + file.Name()
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}
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return fmap, nil
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}
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