Add comments and TODOs

+ Resolve all build warnings

src/main.rs

@@ -15,12 +15,21 @@ mod kot;
 // -----------------------------------------------------------------------------
 
 fn main() {
+    // Call augmented kot::cli::from_args() to parse CLI arguments
     let args = kot::cli::from_args();
+    // At this point all paths exist and have been converted to absolute paths
     println!("args: {:?}\n", args);
 
+    // Attempt to install the configurations, checking for collisions
     match kot::install_configs(&args) {
-        Err(e) => println!("Error: {:?}\n+ Configs used: {:?}\n+ Install directory: {:?}\n",
-                           e.kind(), args.configs_dir, args.install_dir),
+        Err(e) => {
+            // If there was an error, show the error type and run settings
+            println!(
+                "Error: {:?}\n+ Configs used: {:?}\n+ Install directory: {:?}\n",
+                e.kind(), args.dotfiles_dir, args.install_dir
+            )
+        },
+        // Configurations installed successfully
         Ok(()) => (),
     }
 }