// Copyright 2016 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 main

import (
	"flag"
	"log"
	"os"
	"time"

	"github.com/google/slothfs/populate"
)

func main() {
	mount := flag.String("ro", "", "path to slothfs-multifs mount.")
	flag.Parse()

	dir := "."
	if len(flag.Args()) == 1 {
		dir = flag.Arg(0)
	} else if len(flag.Args()) > 1 {
		log.Fatal("too many arguments.")
	}

	changed, err := populate.Checkout(*mount, dir)
	if err != nil {
		log.Fatalf("populate.Checkout: %v", err)
	}

	now := time.Now()
	for _, c := range changed {
		if err := os.Chtimes(c, now, now); err != nil {
			log.Fatalf("Chtimes(%s): %v", c, err)
		}
	}
	log.Printf("touched %d files", len(changed))
}