https://git.ruby-lang.org/ruby.git/commit/?id=46c6da9c37

From 46c6da9c378a64deb2d65d8fcf5afd4d7c9c3f45 Mon Sep 17 00:00:00 2001
From: aycabta <aycabta@g...>
Date: Sat, 24 Jul 2021 15:01:22 +0900
Subject: [ruby/reline] Check empty .inputrc

https://github.com/ruby/reline/commit/b60b3b76cd
---
 lib/reline/config.rb       | 2 +-
 test/reline/test_config.rb | 6 ++++++
 2 files changed, 7 insertions(+), 1 deletion(-)

diff --git a/lib/reline/config.rb b/lib/reline/config.rb
index 3e6c42d..c2b50a9 100644
--- a/lib/reline/config.rb
+++ b/lib/reline/config.rb
@@ -158,7 +158,7 @@ class Reline::Config https://github.com/ruby/ruby/blob/trunk/lib/reline/config.rb#L158
   end
 
   def read_lines(lines, file = nil)
-    if lines.first.encoding != Reline.encoding_system_needs
+    if not lines.empty? and lines.first.encoding != Reline.encoding_system_needs
       begin
         lines = lines.map do |l|
           l.encode(Reline.encoding_system_needs)
diff --git a/test/reline/test_config.rb b/test/reline/test_config.rb
index b6d2ec7..aa549a3 100644
--- a/test/reline/test_config.rb
+++ b/test/reline/test_config.rb
@@ -311,6 +311,12 @@ class Reline::Config::Test < Reline::TestCase https://github.com/ruby/ruby/blob/trunk/test/reline/test_config.rb#L311
     # do nothing
   end
 
+  def test_empty_inputrc
+    assert_nothing_raised do
+      @config.read_lines([])
+    end
+  end
+
   def test_xdg_config_home
     home_backup = ENV['HOME']
     xdg_config_home_backup = ENV['XDG_CONFIG_HOME']
-- 
cgit v1.1


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