Early work on tab completion

src/shellenv/meta.rs

@@ -5,13 +5,16 @@ use crate::prelude::*;
 pub struct MetaTab {
 	timer_start: Instant,
 	last_runtime: Option<Duration>,
+	path_cmds: Vec<String> // Used for command completion
 }
 
 impl MetaTab {
 	pub fn new() -> Self {
+		let path_cmds = get_path_cmds().unwrap_or_default();
 		Self {
 			timer_start: Instant::now(),
 			last_runtime: None,
+			path_cmds
 		}
 	}
 	pub fn start_timer(&mut self) {
@@ -23,4 +26,7 @@ impl MetaTab {
 	pub fn get_runtime(&self) -> Option<Duration> {
 		self.last_runtime
 	}
+	pub fn path_cmds(&self) -> &[String] {
+		&self.path_cmds
+	}
 }