https://git.ruby-lang.org/ruby.git/commit/?id=56c97a6621

From 56c97a6621241db99f7c96740164bdd8f898d881 Mon Sep 17 00:00:00 2001
From: Nobuyoshi Nakada <nobu@r...>
Date: Fri, 28 Oct 2022 18:30:20 +0900
Subject: [ruby/irb] Update regarding NO_COLOR value

https://no-color.org has been updated (jcs/no_color#83):

> Command-line software which adds ANSI color to its output by default
should check for a `NO_COLOR` environment variable that, when present
and **not an empty string** (regardless of its value), prevents the
addition of ANSI color.

https://github.com/ruby/irb/commit/46e0f7e370

Co-authored-by: Stan Lo <stan001212@g...>
---
 lib/irb/init.rb       | 2 +-
 test/irb/test_init.rb | 4 ++++
 2 files changed, 5 insertions(+), 1 deletion(-)

diff --git a/lib/irb/init.rb b/lib/irb/init.rb
index d9c4353f39..11d10c5bab 100644
--- a/lib/irb/init.rb
+++ b/lib/irb/init.rb
@@ -44,7 +44,7 @@ module IRB # :nodoc: https://github.com/ruby/ruby/blob/trunk/lib/irb/init.rb#L44
     @CONF[:IRB_RC] = nil
 
     @CONF[:USE_SINGLELINE] = false unless defined?(ReadlineInputMethod)
-    @CONF[:USE_COLORIZE] = !ENV['NO_COLOR']
+    @CONF[:USE_COLORIZE] = (nc = ENV['NO_COLOR']).nil? || nc.empty?
     @CONF[:USE_AUTOCOMPLETE] = true
     @CONF[:INSPECT_MODE] = true
     @CONF[:USE_TRACER] = false
diff --git a/test/irb/test_init.rb b/test/irb/test_init.rb
index 3293b98d34..074aae4070 100644
--- a/test/irb/test_init.rb
+++ b/test/irb/test_init.rb
@@ -80,6 +80,10 @@ module TestIRB https://github.com/ruby/ruby/blob/trunk/test/irb/test_init.rb#L80
       IRB.setup(__FILE__)
       refute IRB.conf[:USE_COLORIZE]
 
+      ENV['NO_COLOR'] = ''
+      IRB.setup(__FILE__)
+      assert IRB.conf[:USE_COLORIZE]
+
       ENV['NO_COLOR'] = nil
       IRB.setup(__FILE__)
       assert IRB.conf[:USE_COLORIZE]
-- 
cgit v1.2.3


--
ML: ruby-changes@q...
Info: http://www.atdot.net/~ko1/quickml/