First version of repos file generator

repos_file_generator

+#!/usr/bin/env python3
+
+import argparse
+import yaml
+import re
+import logging
+
+
+email_regex = re.compile(r'^([A-Za-z0-9]+[.-_])*[A-Za-z0-9]+@[A-Za-z0-9-]+(\.[A-Z|a-z]{2,})+$')
+def is_valid_email(email: str) -> bool:
+    is_valid = re.fullmatch(email_regex, email) is not None
+    if not is_valid:
+        logging.warning(f'"{email.strip()}": is not a valid email -> not added in a group')
+    return is_valid
+
+
+if __name__ == '__main__':
+    parser = argparse.ArgumentParser(description='Repos file generator - create the PWM repos file from a list of emails')
+    parser.add_argument('in_file', type=argparse.FileType('r'), default='-', help='name of the file containing a list of email adresses (- for stdin)')
+    parser.add_argument('repos_file', type=argparse.FileType('w'), default='repos_file.yml', help='name of the repos file')
+    # In the case we want to implement input file parsers:
+    # parser.add_argument('-f', '--field', help='name of the field containing emails if the input as several fields (e.g. CSV)')
+    args = parser.parse_args()
+    email_list = [line.strip() for line in args.in_file if is_valid_email(line.strip())]  # I do not get why I need to strip for validating email -> the regexp should take care of line return with $
+    group_list = [{'emails': [email]} for email in email_list]
+    yaml.safe_dump(group_list, args.repos_file)