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list.go
47 lines (36 loc) · 1 KB
/
list.go
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// This Source Code Form is subject to the terms of the Mozilla Public
// License, v. 2.0. If a copy of the MPL was not distributed with this
// file, You can obtain one at http://mozilla.org/MPL/2.0/.
package extensions
import (
"fmt"
"os"
"path/filepath"
"sort"
)
// List prepared unpacked extensions under rootPath.
func List(rootPath string) ([]*Extension, error) {
items, err := os.ReadDir(rootPath)
if err != nil {
if os.IsNotExist(err) {
return nil, nil
}
return nil, err
}
if len(items) == 0 {
return nil, nil
}
sort.Slice(items, func(i, j int) bool { return items[i].Name() < items[j].Name() })
result := make([]*Extension, 0, len(items))
for _, item := range items {
if !item.IsDir() {
return nil, fmt.Errorf("unexpected non-directory entry: %q", item.Name())
}
ext, err := Load(filepath.Join(rootPath, item.Name()))
if err != nil {
return nil, fmt.Errorf("error loading extension %s: %w", item.Name(), err)
}
result = append(result, ext)
}
return result, nil
}