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from __future__ import unicode_literals
import os.path
import re
import sys
dirn = os.path.dirname
sys.path.insert(0, dirn(dirn(os.path.abspath(__file__))))
from utils import read_file
from youtube_dl.compat import compat_open as open
README_FILE = 'README.md'
helptext = sys.stdin.read()
if isinstance(helptext, bytes):
helptext = helptext.decode('utf-8')
oldreadme = read_file(README_FILE)
header = oldreadme[:oldreadme.index('# OPTIONS')]
footer = oldreadme[oldreadme.index('# CONFIGURATION'):]
options = helptext[helptext.index(' General Options:') + 19:]
options = re.sub(r'(?m)^ (\w.+)$', r'## \1', options)
options = '# OPTIONS\n' + options + '\n'
with open(README_FILE, 'w', encoding='utf-8') as f:
f.write(header)
f.write(options)
f.write(footer)
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