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#!/usr/bin/env python3
import argparse
import os
import re
import time
import sys
import urllib.request
import urllib.parse
import urllib.error
import logging
from multiprocessing.pool import ThreadPool
DIRECT_MAP_URL = 'http://direct.mapswithme.com/direct/'
ROOT = os.path.dirname(os.path.realpath(__file__))
DEFAULT_DOWNLOAD_DIRECTORY = os.path.join(os.path.dirname(os.path.dirname(ROOT)), 'data')
MAP_REVISION_REGEXP = re.compile(r'(\d{6})')
MWM_NAME_REGEXP = re.compile(r'"(\S+\.mwm)"')
logger = logging.getLogger(__name__)
def parse_html_by_regexp(url, regexp):
def parse_line(line):
return regexp.search(line.decode('utf-8'))
with urllib.request.urlopen(url) as http_response_lines:
filtered_lines = filter(None, map(parse_line, http_response_lines))
for line in filtered_lines:
yield line.group(1)
def get_mwm_versions():
return map(int, parse_html_by_regexp(DIRECT_MAP_URL, MAP_REVISION_REGEXP))
def get_mwm_names(version_num):
version_url = '{base}{version}'.format(base=DIRECT_MAP_URL, version=version_num)
return map(urllib.parse.unquote, parse_html_by_regexp(version_url, MWM_NAME_REGEXP))
def download_file(arg_tuple, attempts=3):
url, filename = arg_tuple
try:
urllib.request.urlretrieve(url, filename=filename)
except urllib.error.HTTPError as err:
if 400 <= err.code < 500:
logger.error('URL \'{url}\' is not found'.format(url=url), exc_info=True)
return False
except PermissionError:
logger.error('Can\'t write file {filename}: permission denied'.format(filename=filename), exc_info=True)
return False
except urllib.error.URLError:
if attempts:
time.sleep(3)
return download_file(arg_tuple, attempts - 1)
logger.error('File {filename} is not loaded'.format(filename=filename), exc_info=True)
return False
return True
def progress_bar(total, progress):
"""
Displays or updates a console progress bar.
Original source: https://stackoverflow.com/a/15860757/1391441
"""
initial_progress = progress
bar_length = 20
progress = progress / total
block = int(round(bar_length * progress))
progress_bar_str = '#' * block + '-' * (bar_length - block)
text = '\r[{progress_bar}] {percent:.0f}% {item}/{total}'.format(
progress_bar=progress_bar_str,
percent=round(progress * 100, 0),
item=initial_progress,
total=total)
sys.stderr.write(text)
if progress == 1:
sys.stderr.write('\n')
sys.stderr.flush()
def download_mwm_list(version=None, threads=8, folder=None, mwm_prefix_list=None, quiet=True):
versions = list(get_mwm_versions())
if version is None:
# Get latest version by default
version = max(versions)
elif version not in versions:
logger.error('Maps with version {version} is not found in {url}'.format(version=version, url=DIRECT_MAP_URL))
return
mwm_names = get_mwm_names(version)
if mwm_prefix_list is not None:
mwm_regexp = re.compile('|'.join(mwm_prefix_list))
mwm_to_download = filter(lambda m: mwm_regexp.match(m), mwm_names)
else:
mwm_to_download = mwm_names
if folder is None:
folder = '{base}/{version}'.format(base=DEFAULT_DOWNLOAD_DIRECTORY, version=version)
os.makedirs(folder, exist_ok=True)
def generate_args(mwm_name):
unescaped_name = urllib.parse.quote(mwm_name)
url = '{base}{version}/{mwm_name}'.format(base=DIRECT_MAP_URL, version=version, mwm_name=unescaped_name)
filename = '{folder}/{mwm_name}'.format(folder=folder, mwm_name=mwm_name)
return url, filename
mwm_args = list(map(generate_args, mwm_to_download))
# No sense to show progress bar for one map
if len(mwm_args) < 2:
quiet = True
pool = ThreadPool(processes=threads)
for num, _ in enumerate(pool.imap_unordered(download_file, mwm_args)):
if not quiet:
progress_bar(len(mwm_args), num + 1)
if __name__ == '__main__':
parser = argparse.ArgumentParser(description='Script to download \'.mwm\' files in multiple threads')
parser.add_argument('-v', '--version', help='Map version number e.g. 180126', type=int, default=None)
parser.add_argument('-t', '--threads', help='Threads count', type=int, default=8)
parser.add_argument('-f', '--folder', help='Directory to save maps', type=str, default=None)
parser.add_argument('-m', '--mwm_prefix_list', help='Mwm prefix list (exmp. \'Russia\', \'Russia_Moscow.mwm\')',
type=str, default=None, nargs='+')
parser.add_argument('-q', '--quiet', help='Prevent progress bar showing', action='store_true', default=False)
args = parser.parse_args()
if not args.quiet:
start_time = time.time()
print('Start downloading maps with {threads} threads'.format(threads=args.threads))
download_mwm_list(**vars(args))
if not args.quiet:
end_time = time.time()
print('Finished in {} s.'.format(round(end_time - start_time)))
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