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@ -1,38 +1,48 @@
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from typing import Callable, Iterable, TypeVar
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from genericpath import exists
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from typing import Iterable
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from enum import Enum
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from math import nan
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import os
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from os import path
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import sys
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import shutil
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from pathlib import Path
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#=== Global Parameters ===#
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dry_run: bool = False
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#=== Init ===#
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backup_root: str = path.dirname(__file__)
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user_home: str = path.expanduser("~")
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if user_home == "~":
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print("WARN: Cannot read the user home dir, do you run it in the correct script?")
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exit()
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else:
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print("dot-config: current user home: " + user_home)
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class SysType (Enum):
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LINUX = "linux"
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TERMUX = "termux"
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WINDOWS = "windows"
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if ("termux" in backup_root):
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sys_type: SysType = SysType.TERMUX
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elif (backup_root[0] == "/"):
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sys_type: SysType = SysType.LINUX
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else:
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sys_type: SysType = SysType.WINDOWS
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print(f"dot config: your dot-config path is {backup_root}")
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print(f"dot config: your system type is {sys_type}")
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print(f"Is all the informations correct? [y/n] ", end="")
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while True:
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_in = input()
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match _in:
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case "y":
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print("continuing...")
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break;
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case "n":
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print("Exiting")
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exit()
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case _:
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print("please confirm with [y/n] ", end="")
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#=== Utils ===#
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import re
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import hashlib
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T_WaitForInput_Res = TypeVar('T_WaitForInput_Res')
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def wait_for_input (cb: Callable[[str], T_WaitForInput_Res|None]) -> T_WaitForInput_Res:
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while True:
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_in = input()
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_out = cb(_in)
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if _out != None:
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return _out
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def replace_env_variables(input_string):
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"""
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Replaces environment variables in the input string with their current values.
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"""
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def replace_env(match):
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env_var = match.group(1)
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return os.environ.get(env_var, f"${{{env_var}}}")
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# Use regular expression to find environment variable placeholders
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pattern = r"%(\w+)%"
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replaced_string = re.sub(pattern, replace_env, input_string)
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return replaced_string
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def sorted_paths (paths: Iterable[str]) -> list[str]:
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fin = sorted(paths)
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@ -41,47 +51,21 @@ def sorted_paths (paths: Iterable[str]) -> list[str]:
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def de_abs_path (path: str) -> str:
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return path.strip('/').strip('\\')
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def get_file_hash(file_path: str) -> str:
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with open(file_path, 'rb') as f:
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bytes = f.read() # read entire file as bytes
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readable_hash = hashlib.md5(bytes).hexdigest()
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return readable_hash
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def ensure_file_dir (file_path: str) -> None:
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dir: str = path.dirname(file_path)
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if dir != '' and not path.exists(dir):
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if not dry_run:
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os.makedirs(dir)
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print(f":created parent dir {dir}")
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def copyfile (src: str, dest: str) -> None:
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ensure_file_dir(dest)
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if not dry_run:
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shutil.copy2(src, dest)
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print(f":copied {src} -> {dest}")
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print(f":updated {dest}")
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def delfile (file_path: str) -> None:
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if not dry_run:
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os.remove(file_path)
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print(f":deleted {file_path}")
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#=== Backup Item ===#
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class BackupItem:
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def __init__ (self, backup_dir: str, origin_dir: str) -> None:
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self.name: str = backup_dir
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self.backup_dir: str = path.join(backup_root, backup_dir)
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self.origin_dir: str = path.abspath(replace_env_variables(path.expanduser(origin_dir)))
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self.origin_dir: str = path.abspath(path.expanduser(origin_dir))
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table: list[BackupItem] = [
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BackupItem("PowerShell", "~/Documents/PowerShell"),
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BackupItem("lsd", "~/.config/lsd")
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]
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def execute_sync (backupItem: BackupItem) -> None:
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print(f">>> executing backup for {backupItem.name}")
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exec_gallery: list[Callable] = []
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### for file mode
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if (path.isfile(backupItem.origin_dir)) or (path.isfile(backupItem.backup_dir)):
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exec_gallery.append(compare_file(backupItem, None))
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### for dir mode
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else:
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all_files_tmp: list[str] = []
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def walk_dir (walking_dir: str):
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for root, dirs, files in os.walk(walking_dir):
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@ -99,189 +83,49 @@ def execute_sync (backupItem: BackupItem) -> None:
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walk_dir(backupItem.backup_dir)
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all_files: list[str] = sorted_paths(set(all_files_tmp))
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for file in all_files:
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exec_gallery.append(compare_file(backupItem, file))
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if exec_gallery.__len__() == 0:
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print("no files to sync ~")
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return
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while True:
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print("! sync those files now? [y/n] ", end="")
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_in = input()
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if _in == 'y':
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for i in exec_gallery:
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i()
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return
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elif _in == 'n':
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return
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compare_file(backupItem, file)
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# print("\n".join(all_files))
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def compare_file (rootBackItem: BackupItem, relative_file_path: str|None) -> Callable:
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class NewerStatus (Enum):
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RIGHT_MISSING = -2
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RIGHT_OLDER = -1
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LEFT_OLDER = 1
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LEFT_MISSING = 2
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def compare_file (rootBackItem: BackupItem, relative_file_path: str) -> None:
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class IsNewerStatus (Enum):
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OLDER = -1
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NEWER = 1
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DIFFERENT = nan
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ALL_MISSING = -999
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SAME = 0
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class FileStatus:
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def __init__ (self, realpath: str) -> None:
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def __init__(self, realpath: str) -> None:
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self.path = realpath
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self.exists = path.exists(realpath)
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if self.exists:
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self.size = path.getsize(realpath)
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self.edited_time = path.getmtime(realpath)
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def hash_of_file (self) -> str:
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def isNewerThan (self, other):
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# type: (FileStatus) -> IsNewerStatus
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if not self.exists:
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return ""
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return get_file_hash(self.path)
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def FileSameCheck (left: FileStatus, right: FileStatus) -> NewerStatus:
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def check_hash_same_or (status: NewerStatus) -> NewerStatus: # TODO: add to compare
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if left.hash_of_file() == right.hash_of_file():
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return NewerStatus.SAME
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return status
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if not left.exists:
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if not right.exists:
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return NewerStatus.ALL_MISSING
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return NewerStatus.LEFT_MISSING
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if not right.exists:
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if not left.exists:
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return NewerStatus.ALL_MISSING
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return NewerStatus.RIGHT_MISSING
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if left.edited_time > right.edited_time:
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return NewerStatus.LEFT_OLDER
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elif left.edited_time < right.edited_time:
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return NewerStatus.RIGHT_OLDER
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if left.size != right.size:
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return NewerStatus.DIFFERENT
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return NewerStatus.SAME
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if relative_file_path == None:
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backup_item: FileStatus = FileStatus(rootBackItem.backup_dir)
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origin_item: FileStatus = FileStatus(rootBackItem.origin_dir)
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file_id: str = rootBackItem.name
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else:
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return IsNewerStatus.OLDER
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if not other.exists:
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return IsNewerStatus.NEWER
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if self.edited_time > other.edited_time:
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return IsNewerStatus.NEWER
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elif self.edited_time < other.edited_time:
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return IsNewerStatus.OLDER
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if self.size != other.size:
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return IsNewerStatus.DIFFERENT
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return IsNewerStatus.SAME
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backup_item: FileStatus = FileStatus(path.join(rootBackItem.backup_dir, relative_file_path))
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origin_item: FileStatus = FileStatus(path.join(rootBackItem.origin_dir, relative_file_path))
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file_id: str = relative_file_path
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# print(f"((backup_item: {backup_item.path}))")
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# print(f"((origin_item: {origin_item.path}))")
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def wait_for_if_remove (onSync = Callable, onRemove = Callable) -> Callable[[str], Callable|None]:
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def implementation (_in: str) -> Callable|None:
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match _in:
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case "s":
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return onSync
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case "r":
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return onRemove
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case "i":
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return lambda: None
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case _:
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print("sync or remove? [s=sync/r=remove/i=ignore] ", end="")
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return None
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return implementation
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match FileSameCheck(origin_item, backup_item):
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case NewerStatus.SAME:
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# print(f"{file_id} : is same")
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pass
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case NewerStatus.RIGHT_OLDER:
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print(f"{file_id} : local file is newer")
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return lambda: copyfile(origin_item.path, backup_item.path)
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case NewerStatus.LEFT_OLDER:
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print(f"{file_id} : backup file is newer")
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return lambda: copyfile(backup_item.path, origin_item.path)
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case NewerStatus.RIGHT_MISSING:
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print(f"{file_id} : backup file is missing, sync or remove? [s=sync/r=remove/i=ignore] ", end="")
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return wait_for_input(wait_for_if_remove(
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onSync = lambda: copyfile(origin_item.path, backup_item.path),
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onRemove = lambda: delfile(origin_item.path)
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))
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case NewerStatus.LEFT_MISSING:
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print(f"{file_id} : local file is missing, sync or remove? [s=sync/r=remove/i=ignore] ", end="")
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exec = wait_for_input(wait_for_if_remove(
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onSync = lambda: copyfile(backup_item.path, origin_item.path),
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onRemove = lambda: delfile(backup_item.path)
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))
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return exec
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case NewerStatus.DIFFERENT:
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print(f"{file_id} : backup is different with local, which to keep? [b=backup/l=local/i=ignore] ", end="")
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return wait_for_input(lambda _in: (
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(lambda: copyfile(backup_item.path, origin_item.path)) if _in == 'l' else
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(lambda: copyfile(origin_item.path, backup_item.path)) if _in == 'b' else
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(lambda: None) if _in == 'i' else
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None
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))
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case NewerStatus.ALL_MISSING:
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print(f"{file_id} : both files are missing, will skipped")
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return lambda: None
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match origin_item.isNewerThan(backup_item):
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case IsNewerStatus.SAME:
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print(f"{relative_file_path} : is same")
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case IsNewerStatus.OLDER:
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print(f"{relative_file_path} : backup file is newer")
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case IsNewerStatus.NEWER:
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print(f"{relative_file_path} : original file is newer")
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case IsNewerStatus.DIFFERENT:
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print(f"{relative_file_path} : WARN : backup is different but cannot determine which is newer")
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#=== Init ===#
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for i in sys.argv:
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if i == "--help" or i == '-h':
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print("Usage: sync.py")
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print(" -n --dry-run : enable dry-run mode")
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print(" -v --version : show version")
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print(" -h --help : show this help")
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exit()
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if i == "--version" or i == '-v':
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print("dot-config sync.py v1.annie.0-alpha1")
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exit()
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if i == '--dry-run' or i == '-n':
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dry_run = True
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print("dot-config: global dry-run mode enabled!")
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backup_root: str = path.dirname(__file__)
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user_home: str = path.expanduser("~")
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if user_home == "~":
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print("FATAL: Cannot read the user home dir, do you run it in the correct script?")
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exit()
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else:
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print("dot-config: current user home: " + user_home)
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class SysType (Enum):
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LINUX = 'linux'
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TERMUX = 'termux'
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WINDOWS = 'windows'
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if ("termux" in backup_root):
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sys_type: SysType = SysType.TERMUX
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elif (backup_root[0] == "/"):
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sys_type: SysType = SysType.LINUX
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else:
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sys_type: SysType = SysType.WINDOWS
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print(f"dot-config: your dot-config path is {backup_root}")
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print(f"dot-config: your system type is {sys_type}")
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print(f"dot-config: dry run mode is {dry_run}")
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print(f"Is all the information correct? [y/n] ", end="")
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while True:
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_in = input()
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match _in:
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case "y":
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print("continuing...")
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break;
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case "n":
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print("Exiting")
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exit()
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case _:
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print("please confirm with [y/n] ", end="")
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#=== main ===#
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import json
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table: list[BackupItem] = []
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config_file = path.join(backup_root, f"sync.{sys_type.value}.json")
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if not path.isfile(config_file):
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print(f"dot-config : FATAL : cannot find config file for current system in {config_file}")
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exit()
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with open(config_file, 'r') as config_file_raw:
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config = json.load(config_file_raw)
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for i in config['backups']:
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here: str = i['path']
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there: str = i['source']
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print(f"-- loaded [{here}] <-> [{there}]")
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table.append(BackupItem(here, there))
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|
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print()
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|
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for i in table:
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|
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# print(f"((BackupItem i : {i.name}))")
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# print(f"((i.backup_dir : {i.backup_dir}))")
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# print(f"((i.origin_dir : {i.origin_dir}))")
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|
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execute_sync(i)
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print()
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