Lot of refactoring and tests. Maybe all this will be veverted but the code still runs

daemon.py

@@ -1,112 +0,0 @@
-"""
-Original Source:
-https://web.archive.org/web/20131017130434/http://www.jejik.com/articles/2007/02/a_simple_unix_linux_daemon_in_python/
-https://web.archive.org/web/20131017130434/http://www.jejik.com/files/examples/daemon3x.py
-See daemon3x.py in the uplink source tree.
-
-More Information:
-https://franklingu.github.io/programming/2016/03/01/creating-daemon-process-python-example-explanation/
-https://dpbl.wordpress.com/2017/02/12/a-tutorial-on-python-daemon/
-"""
-
-import sys
-import os
-import time
-import atexit
-import signal
-
-
-# TODO: Check why pid files are not being deleted when sending the TERM signal
-class Daemon:
-
-	def __init__(self, pid_file):
-		self.pid_file = pid_file
-
-	def daemonize(self):
-		try:
-			pid = os.fork()
-			if pid > 0:
-				sys.exit(0)
-		except OSError as err:
-			sys.stderr.write('fork #1 failed: {0}\n'.format(err))
-			sys.exit(1)
-
-		os.chdir('/')
-		os.setsid()
-		os.umask(0)
-
-		try:
-			pid = os.fork()
-			if pid > 0:
-				sys.exit(0)
-		except OSError as err:
-			sys.stderr.write('fork #2 failed: {0}\n'.format(err))
-			sys.exit(1)
-
-		sys.stdout.flush()
-		sys.stderr.flush()
-		si = open(os.devnull, 'r')
-		so = open(os.devnull, 'a+')
-		se = open(os.devnull, 'a+')
-
-		os.dup2(si.fileno(), sys.stdin.fileno())
-		os.dup2(so.fileno(), sys.stdout.fileno())
-		os.dup2(se.fileno(), sys.stderr.fileno())
-
-		atexit.register(self.del_pid)
-
-		pid = str(os.getpid())
-		with open(self.pid_file, 'w+') as f:
-			f.write(pid + '\n')
-
-	def del_pid(self):
-		os.remove(self.pid_file)
-
-	def start(self):
-		try:
-			with open(self.pid_file, 'r') as pf:
-				pid = int(pf.read().strip())
-		except IOError:
-			pid = None
-
-		if pid:
-			message = "pid_file {0} already exist. Daemon already running?\n"
-			sys.stderr.write(message.format(self.pid_file))
-			sys.exit(1)
-
-		self.daemonize()
-		self.run()
-
-	def stop(self):
-		try:
-			with open(self.pid_file, 'r') as pf:
-				pid = int(pf.read().strip())
-		except IOError:
-			pid = None
-
-		if not pid:
-			message = "pid_file {0} does not exist. Daemon not running?\n"
-			sys.stderr.write(message.format(self.pid_file))
-			return
-
-		try:
-			while 1:
-				os.kill(pid, signal.SIGTERM)
-				time.sleep(0.1)
-		except OSError as err:
-			e = str(err.args)
-			if e.find("No such process") > 0:
-				if os.path.exists(self.pid_file):
-					os.remove(self.pid_file)
-			else:
-				print(str(err.args))
-				sys.exit(1)
-
-	def restart(self):
-		self.stop()
-		self.start()
-
-	def run(self):
-		"""Override this method when you subclass Daemon.
-		It will be called after the process has been daemonized by
-		start() or restart()."""