Add new script link_directory

link_directory.py

@@ -0,0 +1,40 @@
+from argparse import ArgumentParser
+from os.path import exists, isdir, join
+from os import makedirs, listdir, link
+
+
+p = ArgumentParser(description='Link files in a directory to another directory.')  # noqa: E501
+p.add_argument('-a', '--all', help='Include all files.', action='store_true')  # noqa: E501
+p.add_argument('input', help='The path to the input directory.')
+p.add_argument('output', help='The path to the output directory.')
+
+
+def hardlink_files(input: str, output: str, all: bool):
+    if exists(input) and not isdir(input):
+        raise ValueError(f"{input} is not a directory.")
+    if exists(output) and not isdir(output):
+        raise ValueError(f"{output} is not a directory.")
+    if not exists(output):
+        makedirs(output)
+    for f in listdir(input):
+        if not all and f.startswith('.'):
+            continue
+        src = join(input, f)
+        dst = join(output, f)
+        if isdir(src):
+            hardlink_files(src, dst, all)
+            continue
+        if exists(dst):
+            print(f"{dst} already exists.")
+            continue
+        print(f"Linking {src} to {dst}.")
+        link(src, dst)
+
+
+def main(args=None):
+    arg = p.parse_intermixed_args(args)
+    hardlink_files(arg.input, arg.output, arg.all)
+
+
+if __name__ == '__main__':
+    main()