add library for modifying ISO files

udib/udib.py

@@ -1,63 +1,7 @@
 #!/usr/bin/env python3
 
-from pathlib import Path
-import subprocess
+"""Main entry point for the interactive udib CLI tool."""
 
+import argparse
 
-def extract_iso(path_to_output_dir, path_to_input_file):
-    """Extracts the input ISO-file into the specified directory using 'bsdtar'.
-
-    Parameters
-    ----------
-    path_to_output_dir : str or pathlike object
-        Path to the directory into which the contents of the archive will be
-        extracted.
-    path_to_input_file : str or pathlike object
-        Path to the file/archive which should be extracted.
-
-    Raises
-    ------
-    RuntimeError
-        Raised if 'bsdtar' is not installed or encountered an error during the
-        extraction.
-    FileNotFoundError
-        Raised if the input file does not exist or is not a file.
-    NotADirectoryError
-        Raised if the output directory does not exist or is not a directory.
-
-    Example
-    -------
-        extract_iso("/tmp/isocontents", "/home/myuser/downloads/debian-11.iso")
-    """
-
-    path_to_output_dir = Path(path_to_output_dir)
-    path_to_input_file = Path(path_to_input_file)
-
-    # check if paths are valid
-    if not path_to_output_dir.is_dir():
-        raise NotADirectoryError(f"No such directory: '{path_to_output_dir}'.")
-    if not path_to_input_file.is_file():
-        raise FileNotFoundError(f"No such file: '{path_to_input_file}'.")
-
-    # check if 'bsdtar' is installed
-    try:
-        subprocess.run(["command", "-v", "bsdtar"], check=True)
-    except subprocess.CalledProcessError:
-        raise RuntimeError("Program not found in $PATH: 'bsdtar'.")
-
-    # extract file to destination
-    try:
-        subprocess.run(
-            [
-                "bsdtar",
-                "-C",
-                str(path_to_output_dir),
-                "-xf",
-                str(path_to_input_file)
-            ],
-            check=True
-        )
-    except subprocess.CalledProcessError:
-        raise RuntimeError(
-            f"An error occurred while extracting '{path_to_input_file}'."
-        )
+import modiso