imported previous rust projects and cleaned up unused files

tempdir/rusttest/.gitignore

@@ -0,0 +1 @@
+/target

tempdir/rusttest/Cargo.lock

@@ -0,0 +1,7 @@
+# This file is automatically @generated by Cargo.
+# It is not intended for manual editing.
+version = 3
+
+[[package]]
+name = "rusttest"
+version = "0.1.0"

tempdir/rusttest/Cargo.toml

@@ -0,0 +1,8 @@
+[package]
+name = "rusttest"
+version = "0.1.0"
+edition = "2021"
+
+# See more keys and their definitions at https://doc.rust-lang.org/cargo/reference/manifest.html
+
+[dependencies]

tempdir/rusttest/src/main.rs

@@ -0,0 +1,64 @@
+use std::fs;
+use std::time::Instant;
+
+const PATH: &str = "/usr/share/applications/";
+
+fn read(path: &str) -> std::io::Result<()> {
+    let files = fs::read_dir(path)?;
+    for file in files {
+        let file = file?;
+        let path = file.path();
+        let extension = path.extension().expect("error");
+
+        if extension != "desktop" {
+            continue;
+        }
+
+        let mut class: &str = "";
+        let mut name: &str = "";
+        let mut icon: &str = "";
+
+        let file = fs::read_to_string(path)?;
+
+        for line in file.lines() {
+            match line {
+                line if line.starts_with("StartupWMClass") => {
+                    class = match line.split_once('=') {
+                        Some((_, class)) => class,
+                        None => "",
+                    }
+                }
+                line if line.starts_with("Name") => {
+                    name = match line.split_once('=') {
+                        Some((_, name)) => name,
+                        None => "",
+                    }
+                }
+                line if line.starts_with("Icon") => {
+                    icon = match line.split_once('=') {
+                        Some((_, icon)) => icon,
+                        None => "",
+                    }
+                }
+                _ => (),
+            }
+        }
+        println!("Class: {class}, Name: {name}, Icon: {icon}");
+    }
+
+    Ok(())
+}
+
+fn main() {
+    let start_time = Instant::now();
+    read(PATH).expect("error");
+    let end_time = Instant::now();
+
+    let time = end_time - start_time;
+
+    println!(
+        "Time taken: {}.{:03}s",
+        time.as_secs(),
+        time.subsec_millis()
+    );
+}