From 2d58609d546e1c1ede537071aa7de38fc06d1529 Mon Sep 17 00:00:00 2001
From: "andy.boot" <bootandy@gmail.com>
Date: Sun, 2 Jan 2022 18:49:28 +0000
Subject: [PATCH] Fix: Add assert for low terminal width

If terminal is not wide enought to print text, then print an error
message

https://github.com/bootandy/dust/issues/204
---
 src/display.rs | 4 ++++
 1 file changed, 4 insertions(+)

diff --git a/src/display.rs b/src/display.rs
index 4f0124b..d904a7c 100644
--- a/src/display.rs
+++ b/src/display.rs
@@ -128,6 +128,10 @@ pub fn draw_it(
     } else {
         5 // Under normal usage we need 5 chars to display the size of a directory
     };
+    assert!(
+        terminal_width > 9 + num_chars_needed_on_left_most,
+        "Not enough terminal width"
+    );
 
     let terminal_width = terminal_width - 9 - num_chars_needed_on_left_most;
     let num_indent_chars = 3;