Check the OFL.txt files in the gf repo are good

ofl_check.py

"""
For each OFL.txt file, if there is not a double linebreak after the firt
line, add it.


e.g:

Before:

Copyright 2017 The Manuala Project Authors (http:www.gitrepo.com)
This is the license file. description

After:

Copyright 2017 The Manuala Project Authors (http:www.gitrepo.com)

This is the license file. description
"""

import os 
import sys
import re

def main(ofl_path):

    for path, r, files in os.walk(ofl_path):
        for file in files:
            if file == 'OFL.txt':
                ofl_path = os.path.join(path, file)
                
                with open(ofl_path, 'r') as ofl_doc:
                    ofl_text = ofl_doc.read()
                    # if '\r\n' in ofl_text:
                    #     ofl_text = ofl_text.replace('\r\n', '\n')
                    #     with open(ofl_path, 'w') as ofl_doc_w:
                    #         ofl_doc_w.write(ofl_text)

                    pattern = re.search(r'[\n|\r][\r|\n]This Font Software is licensed', ofl_text)
                    if not pattern:
                        print ofl_path


if __name__ == '__main__':
    if len(sys.argv) != 2:
        print 'Please add path to google/fonts/ofl'
    else:
        main(sys.argv[-1])