// Copyright 2013 Prometheus Team
// 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.

// Useful file/filesystem related functions.

package utility

import (
	"fmt"
	"os"
)

// Returns true iff dirPath is a valid directory path.
func IsDir(dirPath string) (bool, error) {
	finfo, err := os.Stat(dirPath)
	if err != nil {
		return false, err
	}
	if !finfo.IsDir() {
		return false, fmt.Errorf("%s not a directory", dirPath)
	}
	return true, nil
}