From c182d46d2477da9283661c8b4544d7da095835b4 Mon Sep 17 00:00:00 2001
From: Koichi Sasada <ko1@atdot.net>
Date: Mon, 26 Dec 2022 21:57:27 +0900
Subject: check `NO_COLOR` envval

Support `NO_COLOR` (https://no-color.org/) to make parsing output easy.
---
 tool/lib/colorize.rb | 4 +++-
 1 file changed, 3 insertions(+), 1 deletion(-)

(limited to 'tool')

diff --git a/tool/lib/colorize.rb b/tool/lib/colorize.rb
index 467cd21246..8fb90e1833 100644
--- a/tool/lib/colorize.rb
+++ b/tool/lib/colorize.rb
@@ -33,9 +33,11 @@ class Colorize
     "bold"=>"1", "underline"=>"4", "reverse"=>"7",
   }
 
+  NO_COLOR = (nc = ENV['NO_COLOR']) && !nc.empty?
+
   # colorize.decorate(str, name = color_name)
   def decorate(str, name = @color)
-    if @colors and color = (@colors[name] || DEFAULTS[name])
+    if !NO_COLOR and @colors and color = (@colors[name] || DEFAULTS[name])
       "#{@beg}#{color}m#{str}#{@reset}"
     else
       str
-- 
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