From e168963d8ac8172941976255b653dc53044c3f0b Mon Sep 17 00:00:00 2001
From: nobu <nobu@b2dd03c8-39d4-4d8f-98ff-823fe69b080e>
Date: Fri, 26 Jan 2018 13:27:56 +0000
Subject: vcs.rb: debug print in system method

git-svn-id: svn+ssh://ci.ruby-lang.org/ruby/trunk@62058 b2dd03c8-39d4-4d8f-98ff-823fe69b080e
---
 tool/vcs.rb | 8 ++++++++
 1 file changed, 8 insertions(+)

(limited to 'tool')

diff --git a/tool/vcs.rb b/tool/vcs.rb
index c3a5b3a0f8..629d521320 100644
--- a/tool/vcs.rb
+++ b/tool/vcs.rb
@@ -86,6 +86,14 @@ else
         super
       end
     end
+    refine Kernel do
+      def system(*args, exception: true, **opts)
+        STDERR.puts [*args, **opts].inspect if $DEBUG
+        ret = super(*args, **opts, exception: exception)
+        raise "Command failed with status (#$?): #{args[0]}" if exception and !ret
+        ret
+      end
+    end
   ensure
     $VERBOSE = verbose unless verbose.nil?
   end
-- 
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