complete main functionality

LICENSE

@@ -0,0 +1,20 @@
+The MIT License (MIT)
+Copyright © 2022 Rokas Puzonas
+
+Permission is hereby granted, free of charge, to any person obtaining a copy of
+this software and associated documentation files (the “Software”), to deal in
+the Software without restriction, including without limitation the rights to
+use, copy, modify, merge, publish, distribute, sublicense, and/or sell copies
+of the Software, and to permit persons to whom the Software is furnished to do
+so, subject to the following conditions:
+
+The above copyright notice and this permission notice shall be included in all
+copies or substantial portions of the Software.
+
+THE SOFTWARE IS PROVIDED “AS IS”, WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
+AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
+LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
+OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
+SOFTWARE.

README.md

@@ -0,0 +1,2 @@
+# ls repos
+List all deep sub folders that are repositories (contain a .git folder)

src/main.rs

@@ -1,3 +1,30 @@
+use std::{env, collections::HashSet, fs};
+
 fn main() {
-	println!("Hello, world!");
+	let mut search_dirs = if env::args().count() > 1 {
+		env::args().skip(1).collect()
+	} else {
+		vec![".".into()]
+	};
+
+	search_dirs.reverse();
+
+	let mut showed_repos = HashSet::new();
+	while !search_dirs.is_empty() {
+		let dir = search_dirs.pop().unwrap();
+
+		for entry in fs::read_dir(dir).unwrap() {
+			let path = entry.unwrap().path();
+			if !path.is_dir() { continue; }
+			let canonical = path.canonicalize().unwrap();
+			if showed_repos.contains(&canonical) { continue; }
+
+			if path.join(".git").is_dir() {
+				println!("{}", path.display());
+				showed_repos.insert(canonical);
+			} else {
+				search_dirs.push(path.to_str().unwrap().into());
+			}
+		}
+	}
 }