From a0fe825533b254e28b68840434a7d23ae431c76f Mon Sep 17 00:00:00 2001
From: HAHWUL <hahwul@gmail.com>
Date: Tue, 4 Feb 2025 00:01:00 +0900
Subject: [PATCH] docs: Add environment variable information to options parser
 output

Signed-off-by: HAHWUL <hahwul@gmail.com>
---
 src/options.cr | 3 +++
 1 file changed, 3 insertions(+)

diff --git a/src/options.cr b/src/options.cr
index 3637e2eb..8fc0b66d 100644
--- a/src/options.cr
+++ b/src/options.cr
@@ -178,6 +178,9 @@ def run_options_parser
       banner()
       puts parser
       puts ""
+      puts "ENVIRONMENT VARIABLES:"
+      puts "  NOIR_HOME: Path to a directory containing the configuration file."
+      puts ""
       puts "EXAMPLES:"
       puts "  Basic run of noir:".colorize(:green)
       puts "      $ noir -b ."