initial work for cli

cli.py

@@ -0,0 +1,53 @@
+import argparse
+
+
+def program_options():
+    description = """\
+        DESCRIPTION HERE.
+    """
+
+    parser = argparse.ArgumentParser(
+        prog="RedditVideoMakerBot", # can be renamed, just a base
+        usage="RedditVideoMakerBot [OPTIONS]",
+        description=description
+    )
+    parser.add_argument(
+        "-c",
+        "--create",
+        help="Create a video.",
+        action="store_true"
+    )
+    # this one accepts link as input, as well as already downloaded video,
+    # defaults to the minecraft video.
+    parser.add_argument(
+        "-b",
+        "--background",
+        help="Use another video background for video (accepts link).",
+        action="store"
+    )
+    parser.add_argument( # only accepts the name of subreddit, not links.
+        "-S",
+        "--subreddit",
+        help="Use another sub-reddit.",
+        action="store"
+    )
+    # show most of the background processes of the program
+    parser.add_argument(
+        "-v",
+        "--verbose",
+        help="Show the processes of program.",
+        action="store_true"
+    )
+
+    args = parser.parse_args()
+
+    try:
+        ...
+    except (
+        ConnectionError,
+        KeyboardInterrupt
+    ):
+        ...
+
+
+program_options()