init

src/executables.rs

@@ -0,0 +1,34 @@
+use std::{error::Error, fs, path::Path};
+
+pub fn get_executables() -> Result<Vec<String>, Box<dyn Error>> {
+    let mut executables: Vec<String> = Vec::new();
+
+    get_files(Path::new("/usr/local"), &mut executables)?;
+    get_files(Path::new("/bin"), &mut executables)?;
+
+    Ok(executables)
+}
+
+pub fn get_files(path: &Path, files: &mut Vec<String>) -> Result<(), Box<dyn Error>> {
+    let dirs = fs::read_dir(path)?;
+
+    for e in dirs {
+        let entry = e.unwrap();
+        let file_type = entry.file_type()?;
+
+        if file_type.is_dir() {
+            get_files(&entry.path(), files)?;
+            continue;
+        }
+        match entry.file_name().into_string() {
+            Ok(file_name) => {
+                if !files.contains(&file_name) {
+                    files.push(file_name)
+                }
+            }
+            Err(_) => {}
+        }
+    }
+
+    Ok(())
+}