poll_prs.py

import json
from datetime import datetime, timedelta

import github_api
from notifier import Notifier

TIME_UNITS = ['days', 'seconds', 'microseconds', 'milliseconds', 'minutes', 'hours', 'weeks']

now = datetime.now()

with open('watchlist.json', 'r') as fp:
    watchlist = json.load(fp)

for repo in watchlist:
    notifier = Notifier(repo['mail'])

    try:
        delta = timedelta(**repo['timespan'])
        time_from = now - delta

        if 'branches' not in repo:
            repo['branches'] = ['master']

        for branch in repo['branches']:
            prs = github_api.get_prs_since(repo['repository'], branch, time_from)
            n = len(prs)

            for i in range(n):
                response = github_api.get_pr_files(repo['repository'], prs[i]['number'])

                for file in response:
                    if file['filename'] in repo['files']:
                        notifier.append(notifier.notify_pr(file, prs[i]))

        notifier.send_notifications('[{}] A new pull request changes watched files.'.format(repo['repository']))

    except PermissionError as e:
        notifier.append(notifier.error(e.args[0]), '[{}] API Error!'.format(repo['repository']))
        notifier.send_notifications('[{}] A new commit changed watched files.'.format(repo['repository']))
        raise e