Init project

src/main.mist

@@ -1,5 +1,6 @@
 use <std::process>;
 use <std::env>;
+use <std::fs>;
 
 pub mod builder;
 pub mod codegen;
@@ -29,6 +30,9 @@ void main() {
         "transpile" | "t" => {
             transpiler::build();
         }
+        "init" => {
+            init_project();
+        }
         "version" | "--version" | "-v" => {
             println!("mist {}", env!("CARGO_PKG_VERSION"));
         }
@@ -61,3 +65,17 @@ void print_usage() {
     println!(" \x1b[36m mist version \x1b[0m          print the compiler version\n");
     println!(" \x1b[36m mist help\x1b[0m              print this message\n");
 }
+
+void init_project(Vec<String> args) {
+    new process::Command("cargo")
+        .args(args)
+        .stdout(process::Stdio::piped())
+        .stderr(process::Stdio::piped())
+        .stdin(process::Stdio::piped())
+        .spawn()
+        .expect("Failed to run cargo");
+    
+    fs::remove("src/main.rs").expect("Failed to remove src/main.rs");
+
+    fs::write("src/main.mist", "void main() {\n    println!(\"Hello, World!\")\n}").expect("Failed to create src/main.mist");
+}

src/transpiler.rs

@@ -10,9 +10,9 @@ use mist_parser::error::ParseError;
 pub fn build() -> PathBuf {
     let start = Instant::now();
 
-    let root = find_project_root().unwrap_or_else(|| {
+    let root = std::env::current_dir()
-        panic!("error: could not find project root (mist.json)");
+        .ok()
-    });
+        .expect("Unable to find project root");
 
     let src_dir = root.join("src");
     let out_dir = root.join(".mist/src");
@@ -164,17 +164,3 @@ fn should_skip(source: &Path, output: &Path) -> bool {
     }
     false
 }
-
-pub fn find_project_root() -> Option<PathBuf> {
-    let mut dir = std::env::current_dir().ok()?;
-
-    loop {
-        if dir.join("mist.json").exists() {
-            return Some(dir);
-        }
-
-        if !dir.pop() {
-            return None;
-        }
-    }
-}