| 1 | import sys |
| 2 | import psutil |
| 3 | import logging |
| 4 | from watchdog.observers import Observer |
| 5 | from watchdog.events import FileSystemEventHandler |
| 6 | from django.core.management import call_command |
| 7 | from django.contrib.staticfiles import finders |
| 8 | import os |
| 9 | from multiprocessing import Process |
| 10 | from . import settings |
| 11 | |
| 12 | def get_project_name(): |
| 13 | settings_module = os.getenv('DJANGO_SETTINGS_MODULE') |
| 14 | if settings_module is not None: |
| 15 | project_name = settings_module.split('.')[0] |
| 16 | return project_name |
| 17 | else: |
| 18 | return None |
| 19 | |
| 20 | def kill_gunicorn(): |
| 21 | for process in psutil.process_iter(): |
| 22 | if 'gunicorn' in process.name(): |
| 23 | process.kill() |
| 24 | |
| 25 | def run_gunicorn_http(hostname=None, port=None): |
| 26 | hostname = hostname or settings.SMARTWATCH_HTTP_HOST |
| 27 | port = port or settings.SMARTWATCH_HTTP_PORT |
| 28 | kill_gunicorn() |
| 29 | os.system(f'gunicorn -b {hostname}:{port} {get_project_name()}.wsgi:application') |
| 30 | |
| 31 | |
| 32 | def kill_daphne(): |
| 33 | for process in psutil.process_iter(): |
| 34 | if 'daphne' in process.name(): |
| 35 | process.kill() |
| 36 | |
| 37 | |
| 38 | def run_daphne_ws(hostname=None, port=None): |
| 39 | hostname = hostname or settings.SMARTWATCH_WS_HOST |
| 40 | port = port or settings.SMARTWATCH_WS_PORT |
| 41 | kill_daphne() |
| 42 | os.system(f'daphne -b {hostname} -p {port} {get_project_name()}.asgi:application') |
| 43 | |
| 44 | |
| 45 | def start_servers(): |
| 46 | Process(target=run_gunicorn_http).start() |
| 47 | |
| 48 | print('started the servers') |
| 49 | |
| 50 | |
| 51 | class ServerHandler(FileSystemEventHandler): |
| 52 | def on_modified(self, event): |
| 53 | should_restart = event.src_path.endswith('.py') |
| 54 | if event.src_path == 'requirements.txt': |
| 55 | logging.info(f'{event.src_path} has been modified. Installing requirements...') |
| 56 | should_restart = True |
| 57 | os.system('pip install -r requirements.txt') |
| 58 | if settings.SMARTWATCH_MIGRATE and 'migrations' in event.src_path: |
| 59 | should_restart = False |
| 60 | logging.info(f'{event.src_path} has been modified. Running migrations...') |
| 61 | call_command('migrate') |
| 62 | if settings.SMARTWATCH_COLLECT_STATIC and 'static' in event.src_path: |
| 63 | logging.info(f'{event.src_path} has been modified. Collecting static files...') |
| 64 | call_command('collectstatic', '--noinput') |
| 65 | if should_restart: |
| 66 | logging.info(f'{event.src_path} has been modified. Restarting server...') |
| 67 | start_servers() |
| 68 | |
| 69 | |
| 70 | def watch_files(): |
| 71 | server_handler = ServerHandler() |
| 72 | observer = Observer() |
| 73 | observer.schedule(server_handler, '.', recursive=True) |
| 74 | observer.start() |
| 75 | try: |
| 76 | while observer.is_alive(): |
| 77 | observer.join(1) |
| 78 | finally: |
| 79 | observer.stop() |
| 80 | observer.join() |
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