draft of lscpu

src/uu/lscpu/Cargo.toml

@@ -0,0 +1,12 @@
+[package]
+name = "uu_lscpu"
+version = "0.0.1"
+edition = "2021"
+
+[[bin]]
+name = "lscpu"
+path = "src/lscpu.rs"
+
+[dependencies]
+regex = { workspace = true }
+sysinfo = { workspace = true }

src/uu/lscpu/src/lscpu.rs

@@ -0,0 +1,31 @@
+use sysinfo::{System};
+use regex::Regex;
+use std::fs;
+
+fn main() {
+    let system = System::new_all();
+    let cpu = system.global_cpu_info();
+
+    println!("Architecture: {}", get_architecture());
+    println!("CPU(s): {}", system.cpus().len());
+    // Add more CPU information here...
+
+    // Example: Parsing /proc/cpuinfo for additional details
+    if let Ok(contents) = fs::read_to_string("/proc/cpuinfo") {
+        let re = Regex::new(r"^model name\s+:\s+(.*)$").unwrap();
+        for cap in re.captures_iter(&contents) {
+            println!("Model name: {}", &cap[1]);
+            break; // Assuming all CPUs have the same model name
+        }
+    }
+}
+
+fn get_architecture() -> String {
+    if cfg!(target_arch = "x86") {
+        "x86".to_string()
+    } else if cfg!(target_arch = "x86_64") {
+        "x86_64".to_string()
+    } else {
+        "Unknown".to_string()
+    }
+}