From ec285d75dfb7dbf8f603b0ff7c4153967415594e Mon Sep 17 00:00:00 2001
From: Mark McCaskey <mark@wasmer.io>
Date: Wed, 20 Nov 2019 14:59:55 -0800
Subject: [PATCH] Simplify default run logic

---
 src/bin/wasmer.rs | 11 +++--------
 1 file changed, 3 insertions(+), 8 deletions(-)

diff --git a/src/bin/wasmer.rs b/src/bin/wasmer.rs
index 012758504e1..356f51a8f1f 100644
--- a/src/bin/wasmer.rs
+++ b/src/bin/wasmer.rs
@@ -843,14 +843,9 @@ fn get_compiler_by_backend(backend: Backend) -> Option<Box<dyn Compiler>> {
 
 fn main() {
     let options = {
-        let args: Vec<String> = env::args().into_iter().filter(|x| !x.starts_with("-")).collect();
-        match args.get(1).map_or("", |s| &s) {
-            // Default
-            "run" | "cache" | "validate" | "self_update" | "" => {
-                CLIOptions::from_args()
-            }
-            // Wasmer trying to run a file directly
-            _ => {
+        match StructOpt::from_iter_safe(env::args()) {
+            Ok(options) => options,
+            Err(_) => {
                 let run_options = Run::from_args();
                 CLIOptions::Run(run_options)
             }