Cargo commands

src/main.rs

@@ -1,4 +1,4 @@
-use std::process;
+use std::process::{self, Command};
 
 pub mod codegen;
 pub mod compiler;
@@ -12,13 +12,11 @@ fn main() {
     }
 
     match args[1].as_str() {
-        "build" => {
-            if args.len() < 2 {
-                eprintln!("error: expected a file path\n  usage: mist build");
-                process::exit(1);
-            }
+        "run" | "build" => {
             compiler::build();
+            Command::new("cargo").args(&args[1..]).status().unwrap();
         }
+        "transpile" => compiler::build(),
         "version" | "--version" | "-v" => {
             println!("mist {}", env!("CARGO_PKG_VERSION"));
         }
@@ -37,7 +35,9 @@ fn print_usage() {
     println!("mist - the mist compiler");
     println!();
     println!("usage:");
-    println!("  mist build             compile the project in the current directory");
+    println!("  mist run               run the project in the current directory");
+    println!("  mist build             build the project in the current directory");
+    println!("  mist transpile         transpile the project in the current directory");
     println!("  mist check <file.ms>   parse and validate without compiling");
     println!("  mist version           print the compiler version");
     println!("  mist help              print this message");