build: add utility library for build scripts

Author: Reim-developer

scripts/lib.py

@@ -0,0 +1,41 @@
+from sys 		import stdout, stderr
+from enum 		import StrEnum, IntEnum
+from typing 	import NoReturn
+from os 		import getcwd, chdir, mkdir
+from pathlib	import Path
+
+class BuildOptions(StrEnum):
+	WHEEL_DEBUG 	= "WHEEL_DEBUG"
+	WHEEL_RELEASE 	= "WHEEL_RELEASE"
+
+class StatusCode(IntEnum):
+	SUCCESS 			= 0
+	MISSING_ARGUMENT 	= 1
+	ARGUMENT_NOT_FOUND 	= 2
+	CHANGE_DIR_FAILED 	= 3
+	CREATE_DIR_FAILED   = 4
+	SUBPROCESS_FAILED	= 5
+
+class BuildExtraOptions(StrEnum):
+	REFESH_CACHE = "--refesh-cache"
+	VERBOSE		 = "--verbose"
+
+def cout(*msg: object) -> None:
+	stdout.write(f" ".join(str(m) for m in msg) + "\n")
+	stdout.flush()
+
+def cerr(*msg: object) -> None:
+	stderr.write(f" ".join(str(m) for m in msg) + "\n")
+	stderr.flush()
+
+def die(code: StatusCode) -> NoReturn:
+	exit(code)
+
+def working_dir() -> str:
+	return getcwd()
+
+def change_dir_to(parent: str | Path) -> None:
+	chdir(parent)
+
+def create_dir(dir: str | Path) -> None:
+	mkdir(dir)