Change io crate & add a small shell

user/shell/Cargo.toml

@@ -4,5 +4,4 @@ version = "0.1.0"
 edition = "2024"
 
 [dependencies]
-# shared = { path = "../../crates/shared", features = ["user"] }
-# core = { path = "../../crates/std/crates/core" }
+winnow = "1.0.0"

user/shell/src/main.rs

@@ -1,11 +1,57 @@
-// use std::io::_print;
+// #![feature(survos_std)]
+
+use std::io::{Read, Write, stdin, stdout};
 
 fn main() {
     let a = std::env::args();
     for a in a {
         println!("Argument: {}", a);
     }
-    println!(
-        "Hello from PIC program loaded dynamically with custom std and a better justfile, and syscalls ! "
-    );
+    std::process::Command::new("fastfetch")
+        .spawn()
+        .unwrap()
+        .wait()
+        .unwrap();
+
+    let mut current_command = String::new();
+
+    fn new_line() {
+        print!("> ");
+        stdout().flush().unwrap();
+    }
+
+    new_line();
+
+    loop {
+        let mut test = [0; 4];
+        let len = stdin().read(&mut test).unwrap();
+        let input = str::from_utf8(&test[..len as usize]).unwrap();
+
+        for c in input.chars() {
+            if c == '\n' {
+                println!();
+                let mut args = current_command.split(" ");
+                std::process::Command::new(args.next().unwrap())
+                    .args(args)
+                    .spawn()
+                    .unwrap()
+                    .wait()
+                    .unwrap();
+                current_command.clear();
+                new_line();
+            } else {
+                if if c == '\x08' {
+                    current_command.pop().is_some()
+                } else {
+                    current_command.push_str(input);
+                    true
+                } {
+                    print!("{}", input);
+                }
+            }
+        }
+        stdout().flush().unwrap();
+    }
 }
+
+// fn parse_command(input: &mut &str) {}