chore: beginning

cyan.py

@@ -1 +1,27 @@
 # cyan, aka pyzule-rw; by zx, 2024
+
+import os
+import sys
+import argparse
+
+parser: argparse.ArgumentParser = argparse.ArgumentParser(
+    description="cyan, an azule \"clone\" for modifying iOS apps")
+parser.add_argument("-o", metavar="output",
+                    help="if unspecified, overwrites input")
+parser.add_argument("-f", metavar="file", nargs="+",
+                    help="a tweak to inject/item to be added to the bundle")
+parser.add_argument("input", help="the app to be modified (.app/.ipa)")
+args: argparse.Namespace = parser.parse_args()
+
+INPUT: str = os.path.realpath(args.input)
+WORKING_DIR: str = os.getcwd()
+PZ_DIR: str = os.path.expanduser("~/.config/cyan")
+changed: bool = False
+
+if not (INPUT.endswith(".ipa") or INPUT.endswith(".app")):
+    sys.exit("[!] input must be a .ipa/.app")
+elif not os.path.exists(INPUT):
+    sys.exit("[!] input does not exist")
+elif not args.o and (input("[<] override your input file? [y/N] ").strip()
+                    .lower() not in ("y", "yes")):
+    sys.exit("[!] not overriding input, missing -o")