Appease Pycharm's incessant complaints
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parent
ee2e1af737
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mikes-backup
294
mikes-backup
@ -1,5 +1,6 @@
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#!/usr/bin/env python3
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#
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import datetime
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import os
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@ -7,52 +8,48 @@ import shlex
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import subprocess
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import sys
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#
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class MikesBackup:
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#
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_log_dir = None
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_remote_host = None
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_remote_user = None
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_destination_dir_base = None
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__log_dir = None
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__remote_host = None
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__remote_user = None
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__destination_dir_base = None
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#
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_ssh_key = None
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_quiet_ssh = True
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__ssh_key = None
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__quiet_ssh = True
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#
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_source_dirs = []
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_source_dir_excludes = []
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__source_dirs = []
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__source_dir_excludes = []
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#
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_force_full = False
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_force_differential = False
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__force_full = False
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__force_differential = False
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#
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def __init__(self):
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self.ParseArgs()
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self.parse_args()
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#
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def eprint(*args, **kwargs):
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print(*args, file=sys.stderr, **kwargs)
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#
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def log():
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pass
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#
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def ParseArgs(self):
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def parse_args(self):
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# Simple mapped args
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args_map = {
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"--log-dir" : "_log_dir",
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"--remote-host" : "_remote_host",
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"--remote-user" : "_remote_user",
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"--destination-dir" : "_destination_dir_base",
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"--ssh-key" : "_ssh_key"
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"--log-dir": "__log_dir",
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"--remote-host": "__remote_host",
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"--remote-user": "__remote_user",
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"--destination-dir": "__destination_dir_base",
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"--ssh-key": "__ssh_key"
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}
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#
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print()
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print ("Parsing arguments")
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print("Parsing arguments")
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a = 1
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while a < len(sys.argv):
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@ -65,7 +62,7 @@ class MikesBackup:
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if arg == arg_name:
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valid_arg = True
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self_var_name = args_map[arg_name]
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self_var_value = sys.argv[ a + 1 ]
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self_var_value = sys.argv[a + 1]
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self.__dict__[self_var_name] = self_var_value
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print("Found argument \"", arg_name, "\" ==>", self_var_value)
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a = a + 1
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@ -74,67 +71,71 @@ class MikesBackup:
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valid_arg = True
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elif arg == "--full":
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valid_arg = True
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self._force_full = True
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self.__force_full = True
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elif arg == "--diff" or arg == "--differential":
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valid_arg = True
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self._force_differential = True
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self.__force_differential = True
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elif arg == "--source-dir":
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valid_arg = True
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self._source_dirs.append( sys.argv[ a + 1 ] )
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print("Found source dir:", sys.argv[ a + 1 ])
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self.__source_dirs.append(sys.argv[a + 1])
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print("Found source dir:", sys.argv[a + 1])
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a = a + 1
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elif arg == "--exclude":
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valid_arg = True
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self._source_dir_excludes.append( sys.argv[ a + 1 ] )
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print("Found exclude dir:", sys.argv[ a + 1 ])
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self.__source_dir_excludes.append(sys.argv[a + 1])
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print("Found exclude dir:", sys.argv[a + 1])
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a = a + 1
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a = a + 1
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#
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if not valid_arg:
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raise Exception("Invalid argument:", arg);
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raise Exception("Invalid argument:", arg)
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#
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def GetDatetimeForFilename(self):
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@staticmethod
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def get_datetime_for_filename():
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#
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return datetime.datetime.now().strftime('%Y-%b-%d_%I%M%p')
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#
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def IsUsingSSH(self):
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def is_using_ssh(self):
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#
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if self._remote_host != None or self._remote_user != None or self._ssh_key != None:
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if (
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self.__remote_host is not None
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or self.__remote_user is not None
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or self.__ssh_key is not None
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):
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return True
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return False
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#
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def DemandSSHConfig(self):
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def demand_ssh_config(self):
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#
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if self.IsUsingSSH():
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if self._remote_host == None:
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if self.is_using_ssh():
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if self.__remote_host is None:
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raise Exception("Please provide remote host")
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if self._remote_user == None:
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if self.__remote_user is None:
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raise Exception("Please provide remote user")
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#
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def DemandDestinationDirectoryConfig(self):
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def demand_destination_directory_config(self):
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#
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if self._destination_dir_base == None:
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if self.__destination_dir_base is None:
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raise Exception("Please provide backup destination directory")
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#
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def DoesDestinationDirectoryExist(self, destination_path):
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def does_destination_directory_exist(self, destination_path):
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#
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print("Trying to determine if destination path exists:", destination_path)
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# Local?
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if not self.IsUsingSSH():
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if not self.is_using_ssh():
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print("Checking for local destination path")
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if os.path.isdir(destination_path):
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print("Local destination path exists")
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@ -150,7 +151,7 @@ class MikesBackup:
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]
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#
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code, stdout, stderr = self.ExecuteRemoteSSHCommand(command)
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code, stdout, stderr = self.execute_remote_ssh_command(command)
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if code == 0:
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print("Remote destination dir was found: " + destination_path)
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return True
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@ -160,208 +161,208 @@ class MikesBackup:
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return False
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#
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def DemandDestinationBaseBackupDirectory(self):
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def demand_destination_base_backup_directory(self):
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#
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self.DemandDestinationDirectoryConfig()
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self.demand_destination_directory_config()
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#
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destination_path = self._destination_dir_base
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destination_path = self.__destination_dir_base
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#
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if self.DoesDestinationDirectoryExist(destination_path) == False:
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if self.does_destination_directory_exist(destination_path) is False:
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raise Exception("Backup destination directory doesn't exist: " + destination_path)
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#
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def DoesFullBackupDestinationDirectoryExist(self):
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def does_full_backup_destination_directory_exist(self):
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#
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dir_path = self.MakeFullBackupDestinationPath()
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dir_path = self.make_full_backup_destination_path()
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#
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print("Trying to determine if Full backup destination directory exists:", dir_path)
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return self.DoesDestinationDirectoryExist(dir_path)
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return self.does_destination_directory_exist(dir_path)
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#
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def GetSourceDirectories(self):
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def get_source_directories(self):
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#
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if len(self._source_dirs) == 0:
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if len(self.__source_dirs) == 0:
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raise Exception("No source directories specified")
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return self._source_dirs
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return self.__source_dirs
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#
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def DoBackup(self):
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def do_backup(self):
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#
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print()
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print("Enter: DoBackup")
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print("Enter: do_backup")
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# Remote base dir must exist
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self.DemandDestinationBaseBackupDirectory()
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self.demand_destination_base_backup_directory()
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# Forced full or differential by args?
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if self._force_full == True or self._force_differential == True:
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if self._force_full == True:
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if self.__force_full is True or self.__force_differential is True:
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if self.__force_full is True:
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print("Forcing full backup")
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self.DoFullBackup()
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self.do_full_backup()
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else:
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print("Forcing differential backup")
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self.DoDifferentialBackup()
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self.do_differential_backup()
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return
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# Automatically choose full or differential
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if self.DoesFullBackupDestinationDirectoryExist():
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if self.does_full_backup_destination_directory_exist():
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print("Automatically choosing differential backup, because full backup destination directory already exists")
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self.DoDifferentialBackup()
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self.do_differential_backup()
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else:
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print("Automatically choosing full backup, because full backup destination directory wasn't found")
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self.DoFullBackup()
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self.do_full_backup()
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#
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def DoFullBackup(self):
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def do_full_backup(self):
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# Start args
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args = []
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# Get destination directory
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destination_dir = self.MakeFullBackupDestinationPath()
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destination_dir = self.make_full_backup_destination_path()
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# Append source directories
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args.extend(self.GetSourceDirectories())
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args.extend(self.get_source_directories())
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# Append remote destination directory
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#args.append( self._remote_user + "@" + self._remote_host + ":" + remote_dir)
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args.append( self.MakeRsyncRemoteDestinationPart(destination_dir) )
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# args.append( self.__remote_user + "@" + self.__remote_host + ":" + remote_dir)
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args.append(self.make_rsync_remote_destination_part(destination_dir))
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#print("Args", str(args))
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# print("Args", str(args))
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print("Destination dir:", destination_dir)
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self.ExecuteRsync(args)
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self.execute_rsync(args)
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#
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def DoDifferentialBackup(self):
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def do_differential_backup(self):
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# Start args
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args = []
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# Get directories
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link_dest_dir = self.MakeFullBackupDestinationPath()
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destination_dir = self.MakeRemoteDifferentialBackupPath()
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self.EnsureDestinationDirectory(destination_dir)
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link_dest_dir = self.make_full_backup_destination_path()
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destination_dir = self.make_remote_differential_backup_path()
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self.ensure_destination_directory(destination_dir)
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# Add link dest arg
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args.append("--link-dest")
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args.append(link_dest_dir)
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# Append source directories
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args.extend(self.GetSourceDirectories())
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args.extend(self.get_source_directories())
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# Append remote destination directory
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#args.append( self._remote_user + "@" + self._remote_host + ":" + remote_dir)
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args.append( self.MakeRsyncRemoteDestinationPart(destination_dir) )
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# args.append( self.__remote_user + "@" + self.__remote_host + ":" + remote_dir)
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args.append(self.make_rsync_remote_destination_part(destination_dir))
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#print("Args", str(args))
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# print("Args", str(args))
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print("Link destination dir:", link_dest_dir)
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print("Destination dir:", destination_dir)
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self.ExecuteRsync(args)
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self.execute_rsync(args)
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#
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def MakeLogDirectoryPath(self):
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def make_log_directory_path(self):
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#
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log_dir = self._log_dir
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if log_dir == None:
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log_dir = self.__log_dir
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if log_dir is None:
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print("No log directory specified; Defaulting to current working directory")
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log_dir = "."
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return log_dir
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#
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def MakeLogPath(self):
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def make_log_path(self):
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# Log dir
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log_dir = self.MakeLogDirectoryPath()
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log_dir = self.make_log_directory_path()
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# Path
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log_path = os.path.join(log_dir, self.GetDatetimeForFilename() + ".log")
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log_path = os.path.join(log_dir, self.get_datetime_for_filename() + ".log")
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return log_path
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#
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def MakeFullBackupDestinationPath(self):
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def make_full_backup_destination_path(self):
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#
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if self._destination_dir_base == None:
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if self.__destination_dir_base is None:
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raise Exception("No remote directory was specified")
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#
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return os.path.join(self._destination_dir_base, "Full")
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return os.path.join(self.__destination_dir_base, "Full")
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#
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def MakeRemoteDifferentialBackupPath(self):
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def make_remote_differential_backup_path(self):
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#
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if self._destination_dir_base == None:
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if self.__destination_dir_base is None:
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raise Exception("No remote directory was specified")
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#
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return os.path.join(self._destination_dir_base, "Differential", self.GetDatetimeForFilename())
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return os.path.join(self.__destination_dir_base, "Differential", self.get_datetime_for_filename())
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#
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def MakeRsyncRemoteDestinationPart(self, destination_dir):
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def make_rsync_remote_destination_part(self, destination_dir):
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#
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part = ""
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#
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if self._remote_host != None:
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if self._remote_user != None:
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part += self._remote_user + "@"
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part += self._remote_host + ":"
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if self.__remote_host is not None:
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if self.__remote_user is not None:
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part += self.__remote_user + "@"
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part += self.__remote_host + ":"
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#
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part += destination_dir
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return part
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#
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def EnsureLocalDirectory(self, d):
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@staticmethod
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def ensure_local_directory(d):
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#
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if not os.path.exists(d):
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os.makedirs(d)
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#
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def EnsureDestinationDirectory(self, d):
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def ensure_destination_directory(self, d):
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#
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if not self.DoesDestinationDirectoryExist(d):
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if not self.does_destination_directory_exist(d):
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#
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print("Destination directory doesn't exist; Will create:", d)
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#
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if self.IsUsingSSH():
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if self.is_using_ssh():
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command = [
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"mkdir",
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"--parents",
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d
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]
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self.ExecuteRemoteSSHCommand(command)
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self.execute_remote_ssh_command(command)
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else:
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os.makedirs(d)
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#
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def StartRsyncArgs(self):
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def start_rsync_args(self):
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#
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self.EnsureLocalDirectory(self.MakeLogDirectoryPath())
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self.ensure_local_directory(self.make_log_directory_path())
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args = [
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"rsync",
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"--log-file", self.MakeLogPath(),
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"--log-file", self.make_log_path(),
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"--archive",
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"--compress",
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"--progress",
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@ -374,54 +375,54 @@ class MikesBackup:
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]
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#
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for e in self._source_dir_excludes:
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for e in self.__source_dir_excludes:
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args.append("--exclude")
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args.append(e)
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#
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#args.append("--dry-run") # DEBUG !!!
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# args.append("--dry-run") # DEBUG !!!
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return args
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#
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def StartRsyncEnvironmentalVariables(self):
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def start_rsync_environment_variables(self):
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#
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env = {}
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#
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if self._ssh_key != None or self._quiet_ssh == True:
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if self.__ssh_key is not None or self.__quiet_ssh is True:
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env["RSYNC_RSH"] = "ssh"
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if self._ssh_key != None:
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env["RSYNC_RSH"] += " -i " + shlex.quote(self._ssh_key)
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if self._quiet_ssh == True:
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if self.__ssh_key is not None:
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env["RSYNC_RSH"] += " -i " + shlex.quote(self.__ssh_key)
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if self.__quiet_ssh is True:
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env["RSYNC_RSH"] += " -q"
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return env
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#
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def ExecuteRemoteSSHCommand(self, command):
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def execute_remote_ssh_command(self, command):
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#
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self.DemandSSHConfig()
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self.demand_ssh_config()
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#
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args = []
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args = list()
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# ssh command
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args.append("ssh")
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# Quiet?
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if self._quiet_ssh == True:
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if self.__quiet_ssh is True:
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args.append("-q")
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# ssh key
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if self._ssh_key != None:
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if self.__ssh_key is not None:
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args.append("-i")
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args.append(self._ssh_key)
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args.append(self.__ssh_key)
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# ssh user@host
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args.append(self._remote_user + "@" + self._remote_host)
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args.append(self.__remote_user + "@" + self.__remote_host)
|
||||
|
||||
# Append the command
|
||||
args.append("--")
|
||||
@ -433,58 +434,59 @@ class MikesBackup:
|
||||
raise Exception("Unsupported command datatype")
|
||||
|
||||
# Spawn SSH in shell
|
||||
#process = subprocess.Popen(args, stdout=subprocess.PIPE, stderr=subprocess.PIPE)
|
||||
# process = subprocess.Popen(args, stdout=subprocess.PIPE, stderr=subprocess.PIPE)
|
||||
process = subprocess.Popen(args)
|
||||
#stdout, stderr = process.communicate()
|
||||
# stdout, stderr = process.communicate()
|
||||
process.communicate()
|
||||
stdout = ""
|
||||
stderr = ""
|
||||
#print (stderr.decode())
|
||||
# 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_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))
|
||||
# print(str(args))
|
||||
|
||||
#
|
||||
env = self.StartRsyncEnvironmentalVariables()
|
||||
env = self.start_rsync_environment_variables()
|
||||
|
||||
#
|
||||
#print("Debug -> Want to execute Rsync")
|
||||
#print("Args:", str(args))
|
||||
#print("Env:", str(env))
|
||||
#return (0, "", "")
|
||||
# print("Debug -> Want to execute Rsync")
|
||||
# print("Args:", str(args))
|
||||
# print("Env:", str(env))
|
||||
# return (0, "", "")
|
||||
|
||||
# Spawn Rsync in shell
|
||||
#process = subprocess.Popen(args, stdout=subprocess.PIPE, stderr=subprocess.PIPE, env=env)
|
||||
# process = subprocess.Popen(args, stdout=subprocess.PIPE, stderr=subprocess.PIPE, env=env)
|
||||
process = subprocess.Popen(args, env=env)
|
||||
#stdout, stderr = process.communicate()
|
||||
# stdout, stderr = process.communicate()
|
||||
process.communicate()
|
||||
#self.eprint(stderr.decode())
|
||||
# self.eprint(stderr.decode())
|
||||
|
||||
stdout = ""
|
||||
stderr = ""
|
||||
|
||||
return (process.returncode, stdout, stderr)
|
||||
return process.returncode, stdout, stderr
|
||||
|
||||
|
||||
def main():
|
||||
|
||||
b = MikesBackup()
|
||||
b.do_backup()
|
||||
|
||||
|
||||
#
|
||||
if __name__ == "__main__":
|
||||
|
||||
#
|
||||
b = MikesBackup()
|
||||
b.DoBackup()
|
||||
|
||||
|
||||
|
||||
|
||||
|
||||
main()
|
||||
|
||||
Loading…
Reference in New Issue
Block a user