// Copyright 2019 The original author or authors
//
// 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 layout

import (
	"os"
	"path/filepath"
)

// FromPath reads an OCI image layout at path and constructs a layout.Path.
func FromPath(path string) (Path, error) {
	// TODO: check oci-layout exists

	_, err := os.Stat(filepath.Join(path, "index.json"))
	if err != nil {
		return "", err
	}

	return Path(path), nil
}