web-crawler/main.go

package main

import (
	"errors"
	"fmt"
	"os"
)

var (
	binaryVersion string
	buildTime     string
	goVersion     string
	gitCommit     string
)

func main() {
	if err := run(); err != nil {
		fmt.Println(err)
		os.Exit(1)
	}
}

func run() error {
	args := os.Args[1:]

	if len(args) == 0 {
		return errors.New("no website provided")
	}

	if len(args) > 1 {
		return errors.New("too many arguments provided")
	}

	baseURL := args[0]

	fmt.Printf("starting crawl of: %s\n", baseURL)

	return nil
}