added functionality to automatically select files and skipping files

Author: yucongalicechen

src/diffpy/labpdfproc/labpdfprocapp.py

@@ -30,7 +30,8 @@ def get_args(override_cli_inputs=None):
         " the list of files contained in the text-file called "
         "file_list.txt that can be found in the folder ./data), "
         "'./*.chi', 'data/*.chi' (load all files with extension .chi in the "
-        "folder ./data).",
+        "folder ./data). You can also prepend '~' to a file name to "
+        "specify files that should be excluded.",
     )
     p.add_argument(
         "-a",

src/diffpy/labpdfproc/tests/test_tools.py

@@ -65,6 +65,10 @@
         ["good_data*"],
         ["good_data.chi", "good_data.xy", "good_data.txt"],
     ),
+    (  # specify files do not want to read
+        [".", "~unreadable_file.txt", "~binary.pkl"],
+        ["good_data.chi", "good_data.xy", "good_data.txt"],
+    ),
 ]
 
 

src/diffpy/labpdfproc/tools.py

@@ -80,8 +80,14 @@ def set_input_lists(args):
     """
 
     input_paths = []
+    excluded_paths = []
     args = _expand_user_input(args)
     for input_name in args.input:
+        if input_name.startswith("~"):
+            input_path = Path(input_name[1:]).resolve()
+            if input_path.exists() and input_path.is_file():
+                excluded_paths.append(input_path)
+                continue
         input_path = Path(input_name).resolve()
         if input_path.exists():
             if input_path.is_file():
@@ -100,6 +106,7 @@ def set_input_lists(args):
                 )
         else:
             raise FileNotFoundError(f"Cannot find {input_name}.")
+    input_paths = [input_path for input_path in input_paths if input_path not in excluded_paths]
     setattr(args, "input_paths", list(set(input_paths)))
     return args