A script to watch file changes in your project directory and automatically run commands

autobuild.py

import subprocess
import sys
import time
import json
from watchdog.observers import Observer
from watchdog.events import FileSystemEventHandler

# load config

with open("autobuild.json", "r") as config_file:
    config = json.loads(config_file.read())

path = sys.argv[1] if len(sys.argv) > 1 else "."

class FileEventsHandler(FileSystemEventHandler):
    def __init__(self):
        super()
    
    def on_any_event(self, _):
        build_cmd = config.get("run-command", None)
        run_cmd = config.get("buid-cmd", None)
        
        if build_cmd != None:
            subprocess.run(build_cmd.split(" "))
        if run_cmd != None:
             subprocess.run(run_cmd.split(" "))
        return

observer = Observer()

handler = FileEventsHandler()

observer.schedule(event_handler=handler, path=path, recursive=True)

observer.start()

try:
    while True:
        time.sleep(1)
except KeyboardInterrupt:
    observer.stop()

observer.join()