From 8765caacfda95ad572e6a291216b52689fc85d96 Mon Sep 17 00:00:00 2001
From: Julio Biason <j.biason@engys.com>
Date: Thu, 22 Dec 2022 15:16:25 -0300
Subject: [PATCH] Finding files in PATH

---
 find_exe.rs | 34 ++++++++++++++++++++++++++++++++++
 1 file changed, 34 insertions(+)
 create mode 100644 find_exe.rs

diff --git a/find_exe.rs b/find_exe.rs
new file mode 100644
index 0000000..cdb6a36
--- /dev/null
+++ b/find_exe.rs
@@ -0,0 +1,34 @@
+use std::env;
+use std::path::Path;
+use std::path::PathBuf;
+
+fn main() {
+    let args = env::args();
+    if args.len() != 2 {
+        println!("Missing executable name");
+        return;
+    }
+
+    let command = PathBuf::from(&args.last().unwrap());
+    println!("Searching for {:?}...", command);
+
+    if command.exists() {
+        println!("Command is here!");
+        return;
+    }
+
+    println!("Exe is in {:?}", find_in_path(&command));
+}
+
+fn find_in_path(command: &Path) -> Option<PathBuf> {
+    env::split_paths(&env::var_os("PATH")?)
+        .filter_map(|dir| {
+            let full_path = dir.join(&command);
+            if full_path.exists() {
+                Some(full_path)
+            } else {
+                None
+            }
+        })
+        .next()
+}