copy-section.py

import click
import os
import glob
from configparser import ConfigParser
import re

@click.group()
def cli():
    pass

@click.command()
@click.option('--input-folder')
@click.option('--source-ini-file')
@click.option('--section-to-copy')
@click.option('--out-folder', default='out')
def copy_section(input_folder, source_ini_file, section_to_copy, out_folder):
    if not os.path.exists(input_folder):
        raise Exception('Cannot find input_folder %s' % input_folder)
        
    if not os.path.exists(source_ini_file):
        raise Exception('Cannot find source_ini_file %s' % source_ini_file)
    
    if not os.path.exists(out_folder):
        os.makedirs(out_folder)

    template = ConfigParser()
    # make ConfigParser work case sensitive, see http://stackoverflow.com/questions/19359556/configparser-reads-capital-keys-and-make-them-lower-case
    template.optionxform = str
    template.read(source_ini_file)

    if not template.has_section(section_to_copy):
        raise Exception('Source INI file %s has no section %s!' % (source_ini_file, section_to_copy))

    for file in os.listdir(input_folder):
        fullpath = os.path.join(input_folder, file)
        if not os.path.isfile(fullpath) or file[-4:] != '.ini':
            continue

        ini = ConfigParser()
        ini.optionxform = str
        ini.read(fullpath)

        if ini.has_section(section_to_copy):
            print('overwrite section in %s' % file)
        else:
            print('create section in    %s' % file)
        ini[section_to_copy] = template[section_to_copy]

        with open(os.path.join(out_folder, file), 'w') as out:
            ini.write(out)

if __name__ == '__main__':
    cli.add_command(copy_section)
    cli()