A big commit

src/programs/viewer.rs

@@ -1,6 +1,9 @@
 extern crate glium;
 extern crate model_converter;
 
+use std::env;
+use std::process::exit;
+
 use glium::Display;
 use glium::glutin;
 use glium::glutin::{
@@ -14,15 +17,45 @@ use glium::glutin::VirtualKeyCode;
 
 
 use model_converter::math::vector::Vector3;
-use model_converter::parser::{parse, parse_into_model};
+use model_converter::parser::parse_into_model;
 use model_converter::renderer::Renderer;
 use model_converter::renderer::controls::OrbitControls;
 use model_converter::renderer::camera::Camera;
+use model_converter::model::Model;
 
 fn main() {
 
-    let mut model = parse("./assets/models/link/link.mtl").unwrap();
-    parse_into_model("./assets/models/link/link.obj", &mut model).unwrap();
+    let mut model = Model::new();
+    let mut inputs = vec![];
+    let mut iterator = env::args();
+
+    // Skip the name of the program
+    iterator.next();
+
+    while let Some(argument) = iterator.next() {
+        match argument.as_ref() {
+            "-i" | "--input" => {
+                if let Some(path) = iterator.next() {
+                    inputs.push(path);
+                } else {
+                    eprintln!("Expecting path after {}", argument);
+                    exit(-1);
+                }
+            },
+
+            arg => {
+                eprintln!("Argument unkown: {}", arg);
+                exit(-1);
+            },
+        }
+    }
+
+    for input in inputs {
+        if let Err(e) = parse_into_model(&input, &mut model) {
+            eprintln!("Error while parsing file: {}", e);
+            exit(1);
+        }
+    }
 
     let mut events_loop = EventsLoop::new();
     let window = WindowBuilder::new();