From cf7ea9a5d1fa0c333a5e1a72098a5fdf2043ea30 Mon Sep 17 00:00:00 2001
From: Geremia Taglialatela <tagliala@users.noreply.github.com>
Date: Mon, 10 May 2021 18:18:35 +0200
Subject: [PATCH] Silence `gem list` command output (#181)

Prevents `appraisal rake` to write a boolean on the standard output when
checking the installed version of bundler

Bug introduced in #168 586864393e405a67b1457b563a4d5adc99e50e2d

Fix: #180
---
 lib/appraisal/command.rb | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/lib/appraisal/command.rb b/lib/appraisal/command.rb
index 26619e50..fd9cdb81 100644
--- a/lib/appraisal/command.rb
+++ b/lib/appraisal/command.rb
@@ -42,7 +42,7 @@ def with_clean_env
 
     def ensure_bundler_is_available
       version = Utils.bundler_version
-      unless system %(gem list -i bundler -v #{version})
+      unless system %(gem list --silent -i bundler -v #{version})
         puts ">> Reinstall Bundler into #{ENV["GEM_HOME"]}"
 
         unless system "gem install bundler --version #{version}"