feat: Accept file path as argument

Author: LynithDev

packages/cli/src/main.rs

@@ -1,24 +1,36 @@
-use std::{path::PathBuf, str::FromStr};
-
 use lang_engine::Engine;
 
 #[macro_use] extern crate log;
 
-fn main() -> Result<(), Box<dyn std::error::Error>> {
+fn main() {
     pretty_env_logger::formatted_builder()
         .target(pretty_env_logger::env_logger::Target::Stdout)
         .format_module_path(true)
         .filter_level(log::LevelFilter::Trace)
         .init();
 
-    info!("creating engine");
+    debug!("initialized logger");
 
     let mut engine = Engine::default();
 
-    match engine.exec_file(&PathBuf::from_str("./script.tsh")?) {
+
+    let args: Vec<String> = std::env::args().collect();
+    if args.len() < 2 {
+        error!("no input file provided");
+        return;
+    }
+
+    let file_path = &args[1];
+    let absolute_path = match std::fs::canonicalize(file_path) {
+        Ok(path) => path,
+        Err(err) => {
+            error!("Could not get absolute path: {}", err);
+            return;
+        }
+    };
+
+    match engine.exec_file(&absolute_path) {
         Ok(status) => info!("finished with status {status}"),
         Err(err) => error!("{err}")
     };
-
-    Ok(())
 }

packages/engine/src/lib.rs

@@ -24,12 +24,13 @@ pub struct Engine {
 
 impl Engine {
     pub fn create() -> Self {
-        Self {
-
-        }
+        debug!("created engine");
+        Self {}
     }
 
     pub fn exec_file(&mut self, file: &PathBuf) -> EngineResult<i32> {
+        debug!("executing file {file:?}");
+
         let code = if file.is_file() && (file.is_absolute() || file.is_relative()) {
             std::fs::read_to_string(file).map_err(|_| error::EngineError::UnknownError)?
         } else {
@@ -45,8 +46,9 @@ impl Engine {
     }
 
     pub fn exec(&mut self, code: &str) -> EngineResult<i32> {
+        debug!("executing script");
+
         let mut lexer = Lexer::create(code, None);
-        
         println!("{:#?}", lexer.tokenize());
 
         lexer.print_errors();

script.tsh

@@ -1 +1 @@
-var test = "
+var test = ""