Changed to lowercase "full" and "differential" for dir creation

So like ... fixed it. And stuff.

.gitignore

@@ -0,0 +1,4 @@
+
+#
+.idea
+

README.md

@@ -14,13 +14,17 @@ This script is really just a wrapper around rsync's beautiful functionality. It
 ## Command Line Arguments
 * ```--full``` Forces the script to run a *full* backup
 * ```--differential``` Forces the script to run a *differential* backup
+* ```--diff``` Same as ```---differential```
+* ```--no-incremental``` Always force differentials to link back to the *full* backup, and not the most recent *differential*
 * ```--log-dir <directory>``` Let's you set the log output directory
 * ```--source-dir <directory>``` Specifies the local source directory
+* ```--include <directory>``` Specifies another local source directory to include in the backup
+* ```--source-mountpoint <directory>``` Make sure a local mountpoint is mounted before continuing
 * ```--destination-dir <directory>``` Specifies the backup destination directory
+* ```--exclude <dir>``` Specifies a source directory to exclude (can be passed multiple times)
 * ```--remote-host <hostname>``` Specifies the remote host, if your backup destination is an SSH server
 * ```--remote-user <username>``` Specifies the remote username to use, if your backup destination is an SSH server
 * ```--ssh-key <path to key>``` Specifies the local SSH key to use for authentication, if your backup destination is an SSH server
-* ```--exclude <dir>``` Specifies a source directory to exclude (can be passed multiple times)
 
 Note that ```--remote-host```, ```--remote-user```, and ```--ssh-key``` are only needed if your backup destination is a remote SSH server. You may omit all three if the destination is a locally mounted folder.
 

mikes-backup

@@ -1,326 +1,513 @@
 #!/usr/bin/env python3
 
+
 #
 import datetime
 import os
+import re
 import shlex
 import subprocess
 import sys
 
+
 #
 class MikesBackup:
 	
 	#
-	_log_dir = None
-	_remote_host = None
-	_remote_user = None
-	_destination_dir_base = None
-	#
-	_ssh_key = None
-	_quiet_ssh = True
-	#
-	_source_dirs = []
-	_source_dir_excludes = []
-	#
-	_force_full = False
-	_force_differential = False
+	__log_dir = None
 	
+	__remote_host = None
+	__remote_user = None
+	__destination_dir_base = None
+	
+	__source_dir = None
+	__source_dir_includes = []
+	__source_dir_excludes = []
+	__source_mountpoint_demands = []
+	
+	__ssh_key = None
+	__quiet_ssh = True
+	
+	__force_full = False
+	__force_differential = False
+	__no_incremental = False
+	
+	__log_file_handle = None
+	
+	CONST_FULL_DIRECTORY_NAME = "full"
+	CONST_DIFFERENTIAL_DIRECTORY_NAME = "differential"
+	CONST_DIFFERENTIAL_IN_PROGRESS_DIRECTORY_NAME = "IN-PROGRESS"
 	
 	#
 	def __init__(self):
-		self.ParseArgs()
+		
+		self.parse_args()
+	
+	#
+	def __del__(self):
+		
+		self.close_log_file()
+	
+	#
+	def __str__(self):
+		
+		s = ""
+		
+		s += "MikesBackup Class Instance"
+		s += "\nLog Dir: " + str(self.__log_dir)
+		s += "\nRemote Host: " + str(self.__remote_host)
+		s += "\nRemote User: " + str(self.__remote_user)
+		s += "\nDestination Dir Base: " + str(self.__destination_dir_base)
+		s += "\nSource Dir (Main): " + str(self.__source_dir)
+		s += "\nSource Dirs (Includes): " + str(self.__source_dir_includes)
+		s += "\nSource Dirs (Excludes): " + str(self.__source_dir_excludes)
+		s += "\nSource Mountpoint Demands: " + str(self.__source_mountpoint_demands)
+		s += "\nSSH Key: " + str(self.__ssh_key)
+		s += "\nQuiet SSH: " + str(self.__quiet_ssh)
+		s += "\nForce Full Backup: " + str(self.__force_full)
+		s += "\nForce Differential: " + str(self.__force_differential)
+		s += "\nDisallow Incremental: " + str(self.__no_incremental)
+		
+		return s
+	
+	#
+	def log(self, s, o=None):
+	
+		the_date = self.get_datetime_for_logging()
+		
+		to_log = "[MikesBackup][" + the_date + "] " + s
+		
+		# Print the log line
+		print(to_log)
+		
+		# Append the log line to the log file
+		f = self.open_log_file()
+		if f:
+			f.write(to_log + "\n")
+		
+		# Recurse in order to print whatever o is outputting, if anything
+		if o is not None:
+			o_lines = str(o).split("\n")
+			for line in o_lines:
+				self.log(line)
+	
+	#
+	def open_log_file(self):
+		
+		if self.__log_file_handle:
+			return self.__log_file_handle
+		
+		log_file_path = self.make_log_path()
+		if log_file_path:
+			self.__log_file_handle = open(log_file_path, "w")
+		
+		return self.__log_file_handle
+	
+	#
+	def close_log_file(self):
+		
+		if self.__log_file_handle:
+			self.__log_file_handle.close()
+			self.__log_file_handle = None
 	
 	#
 	def eprint(*args, **kwargs):
+		
 		print(*args, file=sys.stderr, **kwargs)
 	
 	#
-	def log():
-		pass
-		
-	#
-	def ParseArgs(self):
-		
-		#	Simple mapped args
-		args_map = {
-			"--log-dir" : "_log_dir",
-			"--remote-host" : "_remote_host",
-			"--remote-user" : "_remote_user",
-			"--destination-dir" : "_destination_dir_base",
-			"--ssh-key" : "_ssh_key"
-		}
+	def parse_args(self):
 		
 		#
 		print()
-		print ("Parsing arguments")
-		a = 1
-		while a < len(sys.argv):
+		self.log("Parsing arguments")
+		a = 0
+		while a + 1 < len(sys.argv):
+			
+			a += 1
 			
 			#
 			arg = sys.argv[a]
 			
 			#
 			valid_arg = False
-			for arg_name in args_map:
-				if arg == arg_name:
-					valid_arg = True
-					self_var_name = args_map[arg_name]
-					self_var_value = sys.argv[ a + 1 ]
-					self.__dict__[self_var_name] = self_var_value
-					print("Found argument \"", arg_name, "\" ==>", self_var_value)
-					a = a + 1
-					break
 			if arg == "":
 				valid_arg = True
 			elif arg == "--full":
 				valid_arg = True
-				self._force_full = True
+				self.__force_full = True
+				self.log("Forcing a full backup")
 			elif arg == "--diff" or arg == "--differential":
 				valid_arg = True
-				self._force_differential = True
+				self.__force_differential = True
+				self.log("Forcing a differential backup")
+			elif arg == "--no-incremental":
+				valid_arg = True
+				self.__no_incremental = True
+				self.log("Disallowing incremental backups (differentials will only link back to full)")
+			elif arg == "--log-dir":
+				valid_arg = True
+				self.__log_dir = sys.argv[a + 1]
+				self.log("Found log dir: " + self.__log_dir)
+				a = a + 1
 			elif arg == "--source-dir":
 				valid_arg = True
-				self._source_dirs.append( sys.argv[ a + 1 ] )
-				print("Found source dir:", sys.argv[ a + 1 ])
+				if self.__source_dir:
+					raise Exception("--source-dir can only be used once")
+				self.__source_dir = sys.argv[a + 1]
+				self.log("Found source dir: " + sys.argv[a + 1])
+				a = a + 1
+			elif arg == "--include":
+				valid_arg = True
+				self.__source_dir_includes.append(sys.argv[a + 1])
+				self.log("Found additional source dir include: " + sys.argv[a + 1])
+				a = a + 1
+			elif arg == "--source-mountpoint":
+				valid_arg = True
+				self.__source_mountpoint_demands.append(sys.argv[a + 1])
+				self.log("Found required source mountpoint: " + sys.argv[a + 1])
+				a += 1
+			elif arg == "--destination-dir":
+				valid_arg = True
+				self.__destination_dir_base = sys.argv[a + 1]
+				self.log("Found destination dir: " + self.__destination_dir_base)
 				a = a + 1
 			elif arg == "--exclude":
 				valid_arg = True
-				self._source_dir_excludes.append( sys.argv[ a + 1 ] )
-				print("Found exclude dir:", sys.argv[ a + 1 ])
+				self.__source_dir_excludes.append(sys.argv[a + 1])
+				self.log("Found exclude dir: " + sys.argv[a + 1])
 				a = a + 1
-			
+			elif arg == "--remote-host":
+				valid_arg = True
+				self.__remote_host = sys.argv[a + 1]
+				self.log("Found remote host: " + self.__remote_host)
+				a = a + 1
+			elif arg == "--remote-user":
+				valid_arg = True
+				self.__remote_user = sys.argv[a + 1]
+				self.log("Found remote user: " + self.__remote_user)
+				a = a + 1
+			elif arg == "--ssh-key":
+				valid_arg = True
+				self.__ssh_key = sys.argv[a + 1]
+				self.log("Found ssh key: " + self.__ssh_key)
 				a = a + 1
 			
 			#
 			if not valid_arg:
-				raise Exception("Invalid argument:", arg);
+				raise Exception("Invalid argument:", arg)
+	
+	@staticmethod
+	def get_datetime_for_logging():
 		
 		#
-	def GetDatetimeForFilename(self):
+		return datetime.datetime.now().strftime("%b %d %Y; %I%M%p")
+	
+	@staticmethod
+	def get_datetime_for_filename():
 		
 		#
 		return datetime.datetime.now().strftime('%Y-%b-%d_%I%M%p')
 	
 	#
-	def IsUsingSSH(self):
+	def is_using_source_mountpoints(self):
+	
+		return len(self.__source_mountpoint_demands) > 0
 	
 	#
-		if self._remote_host != None or self._remote_user != None or self._ssh_key != None:
+	def demand_source_mountpoints(self):
+		
+		for mountpoint_path in self.__source_mountpoint_demands:
+			if not os.path.ismount(mountpoint_path):
+				raise Exception("Required mountpoint is not mounted: " + str(mountpoint_path))
+			self.log("Verified mountpoint: " + mountpoint_path)
+	
+	#
+	def is_using_ssh(self):
+		
+		#
+		if (
+			self.__remote_host is not None
+			or self.__remote_user is not None
+			or self.__ssh_key is not None
+		):
 			return True
 		
 		return False
 	
 	#
-	def DemandSSHConfig(self):
+	def demand_ssh_config(self):
 		
 		#
-		if self.IsUsingSSH():
-			if self._remote_host == None:
+		if self.is_using_ssh():
+			if self.__remote_host is None:
 				raise Exception("Please provide remote host")
-			if self._remote_user == None:
+			if self.__remote_user is None:
 				raise Exception("Please provide remote user")
 	
 	#
-	def DemandDestinationDirectoryConfig(self):
+	def demand_source_directory_config(self):
 		
 		#
-		if self._destination_dir_base == None:
+		if self.__source_dir is None:
+			raise Exception("Please provide a source directory")
+	
+	#
+	def demand_destination_directory_config(self):
+		
+		#
+		if self.__destination_dir_base is None:
 			raise Exception("Please provide backup destination directory")
 	
 	#
-	def DoesDestinationDirectoryExist(self, destination_path):
+	def does_destination_directory_exist(self, destination_path):
 		
 		#
-		print("Trying to determine if destination path exists:", destination_path)
+		self.log("Trying to determine if destination path exists:" + destination_path)
 		
 		# Local?
-		if not self.IsUsingSSH():
-			print("Checking for local destination path")
+		if not self.is_using_ssh():
+			self.log("Checking for local destination path")
 			if os.path.isdir(destination_path):
-				print("Local destination path exists")
+				self.log("Local destination path exists")
 				return True
 			else:
-				print("Local destination path does not exist")
+				self.log("Local destination path does not exist")
 				return False
 		
 		#
-		print("Checking for remote destination path")
+		self.log("Checking for remote destination path")
 		command = [
 			"[ -d " + destination_path + " ]"
 		]
 		
 		#
-		code, stdout, stderr = self.ExecuteRemoteSSHCommand(command)
+		code, stdout, stderr = self.execute_remote_ssh_command(command)
 		if code == 0:
-			print("Remote destination dir was found: " + destination_path)
+			self.log("Remote destination dir was found: " + destination_path)
 			return True
 		
 		#
-		print("Remote dir didn't seem to exist: " + destination_path)
+		self.log("Remote dir didn't seem to exist: " + destination_path)
 		return False
 	
 	#
-	def DemandDestinationBaseBackupDirectory(self):
+	def demand_destination_base_backup_directory(self):
 		
 		#
-		self.DemandDestinationDirectoryConfig()
+		self.demand_destination_directory_config()
 		
 		#
-		destination_path = self._destination_dir_base
+		destination_path = self.__destination_dir_base
 		
 		#
-		if self.DoesDestinationDirectoryExist(destination_path) == False:
+		if self.does_destination_directory_exist(destination_path) is False:
 			raise Exception("Backup destination directory doesn't exist: " + destination_path)
 		
 	#
-	def DoesFullBackupDestinationDirectoryExist(self):
+	def does_full_backup_destination_directory_exist(self):
 		
 		#
-		dir_path = self.MakeFullBackupDestinationPath()
+		dir_path = self.make_full_backup_destination_path()
 		
 		#
-		print("Trying to determine if Full backup destination directory exists:", dir_path)
-		return self.DoesDestinationDirectoryExist(dir_path)
+		self.log("Trying to determine if Full backup destination directory exists:", dir_path)
+		return self.does_destination_directory_exist(dir_path)
 	
 	#
-	def GetSourceDirectories(self):
-		
-		#
-		if len(self._source_dirs) == 0:
-			raise Exception("No source directories specified")
-		
-		return self._source_dirs
-	
-	#
-	def DoBackup(self):
+	def do_backup(self):
 		
 		#
 		print()
-		print("Enter: DoBackup")
+		self.log("Enter: do_backup")
+		
+		# Source mountpoints must be mounted
+		self.demand_source_mountpoints()
 		
 		# Remote base dir must exist
-		self.DemandDestinationBaseBackupDirectory()
+		self.demand_destination_base_backup_directory()
 		
 		# Forced full or differential by args?
-		if self._force_full == True or self._force_differential == True:
-			if self._force_full == True:
-				print("Forcing full backup")
-				self.DoFullBackup()
+		if self.__force_full is True or self.__force_differential is True:
+			if self.__force_full is True:
+				self.log("Forcing full backup")
+				self.do_full_backup()
 			else:
-				print("Forcing differential backup")
-				self.DoDifferentialBackup()
+				self.log("Forcing differential backup")
+				self.do_differential_backup()
 			return
 		
 		# Automatically choose full or differential
-		if self.DoesFullBackupDestinationDirectoryExist():
-			print("Automatically choosing differential backup, because full backup destination directory already exists")
-			self.DoDifferentialBackup()
+		if self.does_full_backup_destination_directory_exist():
+			self.log("Automatically choosing differential backup, because full backup destination directory already exists")
+			self.do_differential_backup()
 		else:
-			print("Automatically choosing full backup, because full backup destination directory wasn't found")
-			self.DoFullBackup()
+			self.log("Automatically choosing full backup, because full backup destination directory wasn't found")
+			self.do_full_backup()
 	
 	#
-	def DoFullBackup(self):
+	def do_full_backup(self):
 		
 		# Start args
 		args = []
 		
 		# Get destination directory
-		destination_dir = self.MakeFullBackupDestinationPath()
+		destination_dir = self.make_full_backup_destination_path()
 		
-		#	Append source directories
-		args.extend(self.GetSourceDirectories())
+		# Append source directory
+		args.append(self.make_rsync_source_directory_part())
 		
 		# Append remote destination directory
-		#args.append( self._remote_user + "@" + self._remote_host + ":" + remote_dir)
-		args.append( self.MakeRsyncRemoteDestinationPart(destination_dir) )
+		# args.append( self.__remote_user + "@" + self.__remote_host + ":" + remote_dir)
+		args.append(self.make_rsync_remote_destination_part(destination_dir))
 		
 		# print("Args", str(args))
-		print("Destination dir:", destination_dir)
+		self.log("Destination dir:" + destination_dir)
 		
-		self.ExecuteRsync(args)
+		self.execute_rsync(args)
+		
+		self.log("Rsync seems to have finished successfully")
+		self.log("Because a full backup has succeeded, will now delete any differential backups")
+		self.execute_remote_ssh_command(
+			[
+				"rm",
+				"-rfv",
+				self.make_remote_differential_backup_path_base()
+			])
+		self.log("Finished deleting old differentials")
 	
 	#
-	def DoDifferentialBackup(self):
+	def do_differential_backup(self):
 		
 		# Start args
 		args = []
 		
 		# Get directories
-		link_dest_dir = self.MakeFullBackupDestinationPath()
-		destination_dir = self.MakeRemoteDifferentialBackupPath()
-		self.EnsureDestinationDirectory(destination_dir)
+		link_dest_dir = self.determine_rsync_backup_link_destination_path()
+		destination_dir_in_progress = self.make_remote_differential_in_progress_backup_path()
+		destination_dir_final = self.make_remote_differential_backup_path()
+		self.ensure_destination_directory(destination_dir_in_progress)
 		
-		#	Add link dest arg
+		# Add link dest arg?
+		if link_dest_dir:
 			args.append("--link-dest")
 			args.append(link_dest_dir)
 		
-		#	Append source directories
-		args.extend(self.GetSourceDirectories())
+		# Append source directory
+		args.append(self.make_rsync_source_directory_part())
 		
 		# Append remote destination directory
-		#args.append( self._remote_user + "@" + self._remote_host + ":" + remote_dir)
-		args.append( self.MakeRsyncRemoteDestinationPart(destination_dir) )
+		args.append(self.make_rsync_remote_destination_part(destination_dir_in_progress))
 		
-		#print("Args", str(args))
-		print("Link destination dir:", link_dest_dir)
-		print("Destination dir:", destination_dir)
+		self.log("Link destination dir: " + link_dest_dir)
+		self.log("Destination dir: " + destination_dir_in_progress)
 		
-		self.ExecuteRsync(args)
+		self.execute_rsync(args)
+		
+		self.log("Rsync seems to have finished successfully")
+		self.log("Renaming temporary directory")
+		self.log("Old: " + destination_dir_in_progress)
+		self.log("New: " + destination_dir_final)
+		if self.is_using_ssh():
+			return_code, stdout, stderr = self.execute_remote_ssh_command([
+				"mv",
+				destination_dir_in_progress,
+				destination_dir_final
+			])
+			if return_code != 0:
+				raise Exception("Failed to move temporary diff directory to its final home")
+		else:
+			os.rename(destination_dir_in_progress, destination_dir_final)
+		self.log("Rename was successful")
 	
 	#
-	def MakeLogDirectoryPath(self):
+	def make_log_directory_path(self):
 		
 		#
-		log_dir = self._log_dir
-		if log_dir == None:
-			print("No log directory specified; Defaulting to current working directory")
-			log_dir = "."
+		log_dir = self.__log_dir
+		if log_dir is None:
+			print("No log directory specified; Won't log")
+			return None
 		
 		return log_dir
 		
 	#
-	def MakeLogPath(self):
+	def make_log_path(self):
 		
 		# Log dir
-		log_dir = self.MakeLogDirectoryPath()
+		log_dir = self.make_log_directory_path()
+		if not log_dir:
+			return None
 		
 		# Path
-		log_path = os.path.join(log_dir, self.GetDatetimeForFilename() + ".log")
+		log_path = os.path.join(log_dir, self.get_datetime_for_filename() + ".log")
 		
 		return log_path
 	
 	#
-	def MakeFullBackupDestinationPath(self):
+	def make_full_backup_destination_path(self):
 		
 		#
-		if self._destination_dir_base == None:
+		if self.__destination_dir_base is None:
 			raise Exception("No remote directory was specified")
 		
 		#
-		return os.path.join(self._destination_dir_base, "Full")
+		return os.path.join(self.__destination_dir_base, self.CONST_FULL_DIRECTORY_NAME)
 	
 	#
-	def MakeRemoteDifferentialBackupPath(self):
+	def make_remote_differential_backup_path_base(self):
 		
 		#
-		if self._destination_dir_base == None:
+		if self.__destination_dir_base is None:
 			raise Exception("No remote directory was specified")
 		
-		#
-		return os.path.join(self._destination_dir_base, "Differential", self.GetDatetimeForFilename())
+		return os.path.join(self.__destination_dir_base, self.CONST_DIFFERENTIAL_DIRECTORY_NAME)
 		
 	#
-	def MakeRsyncRemoteDestinationPart(self, destination_dir):
+	def make_remote_differential_in_progress_backup_path(self):
+		
+		diff_path_base = self.make_remote_differential_backup_path_base()
+		
+		return os.path.join(diff_path_base, self.CONST_DIFFERENTIAL_IN_PROGRESS_DIRECTORY_NAME)
+	
+	#
+	def make_remote_differential_backup_path(self):
+		
+		diff_path_base = self.make_remote_differential_backup_path_base()
+		
+		#
+		return os.path.join(diff_path_base, self.get_datetime_for_filename())
+	
+	#
+	def make_rsync_source_includes_part(self):
+		
+		args = []
+		
+		for d in self.__source_dir_includes:
+			args.append("--include")
+			args.append(d)
+		
+		return args
+	
+	#
+	def make_rsync_source_directory_part(self):
+		
+		self.demand_source_directory_config()
+		
+		#
+		return self.__source_dir
+	
+	#
+	def make_rsync_remote_destination_part(self, destination_dir):
 		
 		#
 		part = ""
 		
 		#
-		if self._remote_host != None:
-			if self._remote_user != None:
-				part += self._remote_user + "@"
-			part += self._remote_host + ":"
+		if self.__remote_host is not None:
+			if self.__remote_user is not None:
+				part += self.__remote_user + "@"
+			part += self.__remote_host + ":"
 			
 		#
 		part += destination_dir
@@ -328,53 +515,157 @@ class MikesBackup:
 		return part
 	
 	#
-	def EnsureLocalDirectory(self, d):
+	def determine_rsync_backup_link_destination_path(self):
+		
+		self.demand_destination_directory_config()
+		
+		self.log("Begin trying to determine which previous backup path to use as link")
+		
+		#
+		newest_path = None
+		newest_path_date = None
+		
+		# Pattern to parse the 'ls' command
+		pattern = re.compile(
+			""".*(?P<date>[0-9]{4}-[0-9]{2}-[0-9]{2} [0-9]{2}:[0-9]{2}:[0-9]{2}\.[0-9]{9} .{5}) (?P<name>.+)$""",
+			re.MULTILINE
+		)
+		
+		# Get listing info for the full path
+		destination_path_full = self.make_full_backup_destination_path()
+		args_full_destination_path_ls = [
+			"ls",
+			"-l",
+			"-c",
+			"--all",
+			"--full-time",
+			destination_path_full
+		]
+		if self.is_using_ssh():
+			return_code, stdout, stderr = self.execute_remote_ssh_command(args_full_destination_path_ls)
+		else:
+			return_code, stdout, stderr = self.execute_command(args_full_destination_path_ls)
+		if return_code != 0:
+			raise Exception("Failed to get listing info for base destination directory")
+		for match in pattern.finditer(stdout):
+			name = match.group("name")
+			date = match.group("date")
+			if name == ".":
+				self.log("Start by assuming \"Full\" is the most recent backup: " + destination_path_full)
+				self.log("; With a date of " + date)
+				newest_path = destination_path_full
+				newest_path_date = date
+				break
+		if not newest_path:
+			self.log("Didn't find a \"Full\" backup on remote")
+		
+		if self.__no_incremental:
+			self.log("Incremental backups are disabled; Won't consider any differential directories for the link target")
+			return newest_path
+		
+		# Get listing info for all differential directories
+		differential_path_base = self.make_remote_differential_backup_path_base()
+		self.ensure_destination_directory(differential_path_base)
+		args_differential_destination_path_ls = [
+			"ls",
+			"-l",
+			"-c",
+			"--all",
+			"--full-time",
+			differential_path_base
+		]
+		if self.is_using_ssh():
+			return_code, stdout, stderr = self.execute_remote_ssh_command(args_differential_destination_path_ls)
+		else:
+			return_code, stdout, stderr = self.execute_command(args_differential_destination_path_ls)
+		if return_code != 0:
+			raise Exception("Failed to get listing info for destination differential base directory")
+		
+		# Look for the most recent differential directory
+		# (must be newer than the Full directory too)
+		for match in pattern.finditer(stdout):
+			
+			name = match.group("name")
+			date = match.group("date")
+			
+			if name == "." or name == ".." or name == self.CONST_DIFFERENTIAL_IN_PROGRESS_DIRECTORY_NAME:
+				continue
+			
+			if newest_path is None or date > newest_path_date:
+				self.log("Found a newer differential backup: " + name + "; " + date)
+				newest_path = os.path.join(differential_path_base, name)
+				newest_path_date = date
+			else:
+				self.log("Not newer: " + name + "; " + date)
+		
+		#
+		self.log("Newest backup path is: " + newest_path)
+		self.log("; With a date of: " + newest_path_date)
+		
+		return newest_path
+	
+	@staticmethod
+	def ensure_local_directory(d):
 		
 		#
 		if not os.path.exists(d):
 			os.makedirs(d)
 	
 	#
-	def EnsureDestinationDirectory(self, d):
+	def ensure_destination_directory(self, d):
 		
 		#
-		if not self.DoesDestinationDirectoryExist(d):
+		if not self.does_destination_directory_exist(d):
 			
 			#
-			print("Destination directory doesn't exist; Will create:", d)
+			self.log("Destination directory doesn't exist; Will create:" + d)
 			
 			#
-			if self.IsUsingSSH():
+			if self.is_using_ssh():
 				command = [
 					"mkdir",
 					"--parents",
 					d
 				]
-				self.ExecuteRemoteSSHCommand(command)
+				self.execute_remote_ssh_command(command)
 			else:
 				os.makedirs(d)
 	
 	#
-	def StartRsyncArgs(self):
+	def start_rsync_args(self):
 		
 		#
-		self.EnsureLocalDirectory(self.MakeLogDirectoryPath())
 		args = [
 			"rsync",
-			"--log-file", self.MakeLogPath(),
 			"--archive",
 			"--compress",
 			"--progress",
 			"--stats",
 			"--human-readable",
 			"--itemize-changes",
-			"--one-file-system",
 			"--delete",
 			"--delete-excluded"
 		]
 		
+		log_dir = self.make_log_directory_path()
+		log_path = self.make_log_path()
+		if log_dir and log_path:
+			self.ensure_local_directory(log_dir)
+			args.append("--log-file")
+			args.append(log_path)
+		
+		# Only allow recursion into multiple file systems
+		# if any mountpoints were specified
+		if not self.is_using_source_mountpoints():
+			args.append("--one-file-system")
+		
 		#
-		for e in self._source_dir_excludes:
+		for i in self.__source_dir_includes:
+			args.append("--include")
+			args.append(i)
+		
+		#
+		for e in self.__source_dir_excludes:
 			args.append("--exclude")
 			args.append(e)
 		
@@ -384,44 +675,67 @@ class MikesBackup:
 		return args
 	
 	#
-	def StartRsyncEnvironmentalVariables(self):
+	def start_rsync_environment_variables(self):
 		
 		#
 		env = {}
 		
 		#
-		if self._ssh_key != None or self._quiet_ssh == True:
+		if self.__ssh_key is not None or self.__quiet_ssh is True:
 			env["RSYNC_RSH"] = "ssh"
-			if self._ssh_key != None:
-				env["RSYNC_RSH"] += " -i " + shlex.quote(self._ssh_key)
-			if self._quiet_ssh == True:
+			if self.__ssh_key is not None:
+				env["RSYNC_RSH"] += " -i " + shlex.quote(self.__ssh_key)
+			if self.__quiet_ssh is True:
 				env["RSYNC_RSH"] += " -q"
 		
 		return env
 	
-	#
-	def ExecuteRemoteSSHCommand(self, command):
+	@staticmethod
+	def execute_command(command):
 		
 		#
-		self.DemandSSHConfig()
+		args = list()
+		
+		# Append the command
+		if isinstance(command, str):
+			args.append(command)
+		elif isinstance(command, list):
+			args.extend(command)
+		else:
+			raise Exception("Unsupported command datatype")
+		
+		# Spawn
+		process = subprocess.Popen(args, stdout=subprocess.PIPE, stderr=subprocess.PIPE)
+		stdout, stderr = process.communicate()
+		
+		stdout = stdout.decode()
+		stderr = stderr.decode()
+		
+		return process.returncode, stdout, stderr
 	
 	#
-		args = []
+	def execute_remote_ssh_command(self, command):
+		
+		#
+		self.demand_ssh_config()
+		
+		#
+		args = list()
 		
 		# ssh command
 		args.append("ssh")
 		
 		# Quiet?
-		if self._quiet_ssh == True:
+		if self.__quiet_ssh is True:
 			args.append("-q")
 		
 		# ssh key
-		if self._ssh_key != None:
+		if self.__ssh_key is not None:
 			args.append("-i")
-			args.append(self._ssh_key)
+			args.append(self.__ssh_key)
 		
 		# ssh user@host
-		args.append(self._remote_user + "@" + self._remote_host)
+		args.append(self.__remote_user + "@" + self.__remote_host)
 		
 		# Append the command
 		args.append("--")
@@ -432,32 +746,41 @@ class MikesBackup:
 		else:
 			raise Exception("Unsupported command datatype")
 		
-		#	Spawn SSH in shell
-		#process = subprocess.Popen(args, stdout=subprocess.PIPE, stderr=subprocess.PIPE)
-		process = subprocess.Popen(args)
-		#stdout, stderr = process.communicate()
-		process.communicate()
-		stdout = ""
-		stderr = ""
+		# Spawn
+		process = subprocess.Popen(args, stdout=subprocess.PIPE, stderr=subprocess.PIPE)
+		# process = subprocess.Popen(args)
+		stdout, stderr = process.communicate()
+		
+		stdout = stdout.decode()
+		stderr = stderr.decode()
+		
+		# process.communicate()
+		# stdout = ""
+		# stderr = ""
 		# print(stderr.decode())
 		
-		return (process.returncode, stdout, stderr)
+		return process.returncode, stdout, stderr
 	
 	#
-	def ExecuteRsync(self, _args):
+	def execute_rsync(self, _args):
 		
 		# Demand stuff
-		self.DemandDestinationDirectoryConfig()
-		if self.IsUsingSSH():
-			self.DemandSSHConfig()
+		self.demand_source_directory_config()
+		self.demand_destination_directory_config()
+		if self.is_using_ssh():
+			self.demand_ssh_config()
 		
 		#
-		args = self.StartRsyncArgs()
+		args = self.start_rsync_args()
 		args.extend(_args)
 		# print(str(args))
 		
 		#
-		env = self.StartRsyncEnvironmentalVariables()
+		env = self.start_rsync_environment_variables()
+		
+		#
+		self.log("Executing rsync with the following arguments:", args)
+		self.log("; And the following environment:", env)
 		
 		#
 		# print("Debug -> Want to execute Rsync")
@@ -475,16 +798,24 @@ class MikesBackup:
 		stdout = ""
 		stderr = ""
 		
-		return (process.returncode, stdout, stderr)
+		# Check return code
+		# 0 = Success
+		# 24 = Source files vanished
+		return_code = process.returncode
+		if return_code != 0 and return_code != 24:
+			raise Exception("Rsync seems to have failed somehow! Got return code: " + str(return_code))
+		
+		return return_code, stdout, stderr
+
+
+def main():
+	
+	b = MikesBackup()
+	b.do_backup()
+
 
 #
 if __name__ == "__main__":
 	
 	#
-	b = MikesBackup()
-	b.DoBackup()
-
-
-
-
-
+	main()