mirror-checker/projects/racket.py

import requests
import re
from project import Project
from shared import CSC_MIRROR
import itertools
from bs4 import BeautifulSoup

class racket(Project):
    """racket class"""
    @staticmethod
    def max_version(processed_versions):
        latest_version = processed_versions[0]
        for version in processed_versions:
            if len(latest_version) > len(version):
                latest_version_portion = itertools.islice(latest_version, len(version))
                comparisons = list(map(lambda p, q: p == q, latest_version_portion, version))
                if False in comparisons:
                    index = comparisons.index(False)
                    if latest_version[index] < version[index]:
                        latest_version = version
            if len(latest_version) < len(version):
                version_portion = itertools.islice(version, len(latest_version))
                comparisons = list(map(lambda p, q: p == q, version_portion, latest_version))
                if False in comparisons:
                    index = comparisons.index(False)
                    if latest_version[index] < version[index]:
                        latest_version = version
                latest_version = version
            if len(latest_version) == len(version):
                comparisons = list(map(lambda p, q: p == q, version, latest_version))
                if False in comparisons:
                    index = comparisons.index(False)
                    if latest_version[index] < version[index]:
                        latest_version = version
        return latest_version

    @staticmethod
    def scrape(versions, site):
        # getting the request from url
        r = requests.get(site)
        
        # converting the text
        s = BeautifulSoup(r.text,"html.parser")

        for i in s.find_all("a"): # for a href directories
            href = i.attrs['href']
            
            if href.endswith("/") and href != "../" and href != "/" and href != "recent/":
                if href not in versions:
                    versions.append(href)   

    @classmethod
    def get_latest_version(cls, web_dir):
        page = requests.get(web_dir).text

        versions = []
        cls.scrape(versions, web_dir)

        processed_versions = []
        for version in versions:
            # print(version)
            processed_versions.append(version.replace("/", "").split("."))
        # print(cls.max_version(processed_versions))

        return(cls.max_version(processed_versions))

    
    @classmethod
    def check(cls, data, project, current_time):
        """Check if project packages are up-to-date"""
        csc_url = CSC_MIRROR + data[project]["csc"] + data[project]["file"]
        upstream_url = data[project]["upstream"] + data[project]["file"]

        return cls.get_latest_version(csc_url) == cls.get_latest_version(upstream_url)