right let's try this one again

src/about_variables.rs

@@ -1,38 +0,0 @@
-use helpers::*;
-
-// Variables in Rust are defined using the "let" keyword. Like this:
-
-fn exercise_one() {
-    let x = 5;
-    verify(5, x);
-    //      ^  ^
-    //      |  |
-    // What's  The variable
-    //  in it  name
-}
-
-// Try to replace the "0" with the value of the variable, then run
-// "cargo run" and see if it was correct!
-
-// Here's a more complicated example:
-
-fn guess_me() -> &'static str {
-    let x = 10;
-    if x == 10 {
-        return "Ten!";
-    } else {
-        return "Not ten!";
-    }
-}
-
-fn exercise_two() {
-    let result = guess_me();
-    verify("REPLACE ME", result);
-}
-
-pub fn exec() {
-    title("Variables: Exercise 1");
-    exercise_one();
-    title("Variables: Exercise 2");
-    exercise_two();
-}

src/helpers.rs

@@ -1,33 +0,0 @@
-use ansi_term::Color::{Green, Red, Yellow};
-use std::fmt::Display;
-
-pub fn verify<T: PartialEq + Display>(left: T, right: T) {
-    if left == right {
-        println!("{} {} == {}", Green.bold().paint("PASS"), left, right);
-    } else {
-        println!(
-            "{} You submitted {}, but that's not correct!",
-            Red.bold().paint("FAIL"),
-            left
-        );
-        println!("     Please correct your code to make this test pass!");
-    }
-}
-
-pub fn verify_easy<T: PartialEq + Display>(left: T, right: T) {
-    if left == right {
-        println!("{} {} == {}", Green.bold().paint("PASS"), left, right);
-    } else {
-        println!(
-            "{} You submitted {}, but that's not correct!",
-            Red.bold().paint("FAIL"),
-            left
-        );
-        println!("     Expected: {}", right);
-        println!("     Please correct your code to make this test pass!");
-    }
-}
-
-pub fn title(s: &str) {
-    println!("{} {}", Yellow.bold().paint("RUN"), s);
-}

src/main.rs

@@ -1,21 +1,44 @@
 #[macro_use]
-extern crate quicli;
-extern crate ansi_term;
+extern crate clap;
+extern crate indicatif;
+extern crate console;
 
-use ansi_term::Color::Yellow;
-use quicli::prelude::*;
+use clap::{App, SubCommand};
+use indicatif::{ProgressBar};
+use console::{style, Emoji};
+use std::process::Command;
 
-mod helpers;
-mod about_variables;
-
-#[derive(Debug, StructOpt)]
-struct Cli {
-    exercise: Option<String>,
+fn main() {
+  let matches = App::new("r2")
+      .version(crate_version!())
+      .author("Olivia Hugger")
+      .about("Test")
+      .subcommand(SubCommand::with_name("verify").alias("v"))
+      .get_matches();
+  
+  if let Some(_) = matches.subcommand_matches("verify") {
+    execute("exercises/ex1.rs");
+    execute("exercises/ex2.rs");
+    execute("exercises/ex3.rs");
+    execute("exercises/ex4.rs");
+    execute("exercises/ex5.rs");
+  }
 }
 
-main!(|args: Cli| if let Some(e) = args.exercise {
-    println!("selected {}", e);
-} else {
-    println!("Welcome to {}!\n", Yellow.paint("Rustlings"));
-    about_variables::exec();
-});
+fn execute(filename: &str) {
+  let bar = ProgressBar::new_spinner();
+  bar.set_message(format!("Compiling {}...", filename).as_str());
+  bar.enable_steady_tick(100);
+  let compilecmd = Command::new("rustc")
+                           .args(&[filename, "-o", "temp"])
+                           .output()
+                           .expect("fail");
+  bar.finish_and_clear();
+  if compilecmd.status.success() {
+    println!("{} Successfully compiled {}!", Emoji("✅", "✓"), style(filename).italic());
+  } else {
+    println!("{} Compilation of {} failed! Compiler error message:\n", Emoji("⚠️ ", "!"), style(filename).italic());
+    println!("{}", String::from_utf8_lossy(&compilecmd.stderr));
+    std::process::exit(1);
+  }
+}