// Copyright 2019 The Go Cloud Development Kit 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
//
//     https://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.

// This is a small Go binary for testing command redirection.

package main

import (
	"flag"
	"fmt"
	"io"
	"os"
)

var exit = flag.Int("exit", 0, "exit with this code")

func main() {
	flag.Parse()
	if *exit != 0 {
		os.Exit(*exit)
	}
	fmt.Println("Here is stdin:")
	_, err := io.Copy(os.Stdout, os.Stdin)
	if err != nil {
		fmt.Fprintf(os.Stderr, "failed: %v\n", err)
		os.Exit(1)
	}
}