mirror of
https://github.com/kevinveenbirkenbach/computer-playbook.git
synced 2024-09-20 00:13:09 +02:00
103 lines
4.0 KiB
Python
103 lines
4.0 KiB
Python
import argparse
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import subprocess
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import time
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import os
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from datetime import datetime
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# Global variable definition
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BREAK_TIME_SECONDS = 5
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class AttemptException(Exception):
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"""A custom exception for maximum number of attempts."""
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pass
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def parse_time_to_seconds(time_str):
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"""
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Convert a time string (e.g., '1h', '30min', '45s') to seconds.
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"""
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units = {"s": 1, "min": 60, "h": 3600}
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if time_str[-3:] in units:
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number, unit = time_str[:-3], time_str[-3:]
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elif time_str[-2:] in units:
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number, unit = time_str[:-2], time_str[-2:]
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elif time_str[-1:] in units:
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number, unit = time_str[:-1], time_str[-1:]
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else:
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raise ValueError("Invalid time unit")
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return int(number) * units[unit]
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def check_service_active(service_name):
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"""
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Check if a systemd service is currently active or activating.
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"""
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result = subprocess.run(['systemctl', 'is-active', service_name], stdout=subprocess.PIPE)
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service_status = result.stdout.decode('utf-8').strip()
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is_active = service_status in ['active', 'activating']
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print(f"Service {service_name} is {'active' if is_active else 'not active'}.")
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return is_active
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def check_any_service_active(services):
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"""
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Check if any service in a given list is active or activating.
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"""
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return any(check_service_active(service) for service in services)
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def filter_services(services, ignored_services):
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"""
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Filter out services that are in the ignored_services list from services list.
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"""
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return [service for service in services if service not in ignored_services]
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def wait_for_all_services_to_stop(filtered_services, max_attempts, attempt):
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"""
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Wait until all services in the list have stopped, with a maximum number of attempts.
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"""
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for service in filtered_services:
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while check_service_active(service):
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attempt += 1
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if attempt > max_attempts:
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raise AttemptException(f"Maximum attempts ({max_attempts}) reached. Exiting.")
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print(f"{datetime.now().isoformat()}#{attempt}/{max_attempts}: Waiting for {BREAK_TIME_SECONDS} seconds for {service} to stop...")
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time.sleep(BREAK_TIME_SECONDS)
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return attempt
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def get_max_attempts(timeout_sec):
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return timeout_sec // BREAK_TIME_SECONDS
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def append_suffix_to_services(services, suffix=".cymais"):
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"""
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Append a specified suffix to each service name in the list.
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"""
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return [service + suffix for service in services]
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def main(services, ignored_services, timeout_sec):
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"""
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Main function to process the command-line arguments and perform actions.
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"""
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services_with_suffix = append_suffix_to_services(services)
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ignored_services_with_suffix = append_suffix_to_services(ignored_services)
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filtered_services = filter_services(services_with_suffix, ignored_services_with_suffix )
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print(f"Services to handle: {services_with_suffix}")
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print(f"Services to ignore: {ignored_services_with_suffix}")
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print(f"Services filtered: {filtered_services}")
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print("Waiting for services to stop.")
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attempt = 0
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max_attempts = get_max_attempts(timeout_sec)
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while check_any_service_active(filtered_services):
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attempt = wait_for_all_services_to_stop(filtered_services, max_attempts, attempt)
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print("All required services have stopped.")
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if __name__ == "__main__":
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parser = argparse.ArgumentParser(description='Blocks the code execution as long as defined services are running. Terminates with 0 when all services stopped')
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parser.add_argument('services', nargs='+', help='List of services to apply the action to.')
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parser.add_argument('--ignore', nargs='*', help='List of services to ignore in the action.', default=[])
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parser.add_argument('--timeout', help='Timeout for lock actions (e.g., 1h, 30min, 45s).', default='1min')
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args = parser.parse_args()
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services = args.services
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ignored_services = args.ignore if args.ignore else []
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timeout_seconds = parse_time_to_seconds(args.timeout)
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main(services, ignored_services, timeout_seconds)
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