main.py

import threading
from queue import Queue
from spiders import Spider
from domain import *
from files import *
from bs4 import BeautifulSoup as soup
PROJECT_NAME = str(input("Enter the project name: "))
HOMEPAGE = str(input("Enter the homepage url: "))
DOMAIN_NAME = get_domain_name(HOMEPAGE)
QUEUE_FILE = PROJECT_NAME + '/queue.txt'
CRAWLED_FILE = PROJECT_NAME + '/crawled.txt'
NUMBER_OF_THREADS = int(input("Number of Spiders as per your system: "))
queue = Queue()
Spider(PROJECT_NAME, HOMEPAGE, DOMAIN_NAME)


def create_workers():
    for _ in range(NUMBER_OF_THREADS):
        t = threading.Thread(target=work)
        t.daemon = True
        t.start()


def work():
    while True:
        url = queue.get()
        Spider.crawl_page(threading.current_thread().name, url)
        queue.task_done()


def create_jobs():
    for link in file_to_set(QUEUE_FILE):
        queue.put(link)
    queue.join()
    crawl()


def crawl():
    queued_links = file_to_set(QUEUE_FILE)
    if len(queued_links) > 0:
        print(str(len(queued_links)) + ' links in the queue')
        create_jobs()


if __name__ == '__main__':
    create_workers()
    crawl()