testmail ¶

Save into '/usr/local/bin/testmail', then:

chmod +x /usr/local/bin/testmail

#!/usr/bin/env python3
import os
import configparser
from pathlib import Path
import argparse


def run_command(command, dry_run):
    print("\x1b[1;37;40m" + command + "\x1b[0m")
    if not dry_run:
        os.system(command)


class Config():

    def __init__(self):
        self._config = configparser.ConfigParser()
        if not self.get_config_filename().exists():
            self._config['general'] = {
                'counter': 1,
            }
            self.save_config()
            print(f"Default config written to {self.get_config_filename()}")
        self.read_config()

    def get_config_filename(self):
        return Path(__file__).parent / "testmail.ini"

    def read_config(self):
        self._config.read(self.get_config_filename())

    def save_config(self):
        with open(self.get_config_filename(), 'w') as f:
            self._config.write(f)

    def get_counter(self, increment=True):
        value = self._config.getint('general', 'counter')
        if increment:
            self.increment_counter()
        return value

    def increment_counter(self):
        self._config['general']['counter'] = str(self.get_counter(increment=False) + 1)
        self.save_config()

    def reset_counter(self):
        self._config['general']['counter'] = '1'
        self.save_config()


if __name__ == '__main__':

    parser = argparse.ArgumentParser(description="Sends a test email to the specified recipient")
    parser.add_argument('recipient')
    parser.add_argument('--dry-run', '-d', action='store_true')
    args = parser.parse_args()

    config = Config()
    counter = config.get_counter(increment=not args.dry_run)

    command = 'echo "Test mail %d; created on: `date`" | mail -s "Test mail %d" %s' % (
        counter,
        counter,
        args.recipient,
    )
    run_command(command, args.dry_run)