From 7d70c8af2189dadf229459f99d2abcb30f263222 Mon Sep 17 00:00:00 2001
From: _ <_@_>
Date: Mon, 21 Feb 2022 23:36:14 +0000
Subject: [PATCH] :heavy_plus_sign: add CLI args

---
 .gitignore  |  4 ++++
 src/main.rs | 24 ++++++++++++++++++++++--
 2 files changed, 26 insertions(+), 2 deletions(-)

diff --git a/.gitignore b/.gitignore
index ea8c4bf..cd378c5 100644
--- a/.gitignore
+++ b/.gitignore
@@ -1 +1,5 @@
 /target
+
+*.blend
+*.glb
+*.iqm
diff --git a/src/main.rs b/src/main.rs
index 05d821c..f719bb5 100644
--- a/src/main.rs
+++ b/src/main.rs
@@ -9,7 +9,27 @@ use glam::{
 };
 
 fn main () {
-	let (document, buffers, _images) = gltf::import ("input.glb").unwrap ();
+	// The `clap` crate is very popular but also very slow to compile,
+	// so I'll do my own CLI parsing
+	let mut args = std::env::args ();
+	let _exe_name = args.next ().unwrap ();
+	
+	let mut input_path = None;
+	let mut output_path = None;
+	
+	while let Some (arg) = args.next () {
+		if arg == "--input" || arg == "-i" {
+			input_path = args.next ();
+		}
+		else if arg == "--output" || arg == "-o" {
+			output_path = args.next ();
+		}
+	}
+	
+	let input_path = input_path.unwrap ();
+	let output_path = output_path.unwrap ();
+	
+	let (document, buffers, _images) = gltf::import (input_path).unwrap ();
 	let buffer = buffers.get (0).unwrap ();
 	
 	let mut vertexes = Vec::default ();
@@ -121,7 +141,7 @@ fn main () {
 	
 	let filesize = ofs_text + num_text;
 	
-	let mut f = File::create ("output.iqm").unwrap ();
+	let mut f = File::create (output_path).unwrap ();
 	
 	f.write_all (b"INTERQUAKEMODEL\0").unwrap ();