Remove extra items because Reline::HISTORY is a sized queue

1 files changed, 15 insertions, 1 deletions

diff --git a/lib/reline.rb b/lib/reline.rb
index df2b620448..8e7d4ff016 100644
--- a/lib/reline.rb
+++ b/lib/reline.rb
@@ -45,9 +45,23 @@ module Reline
       super(index, String.new(val, encoding: Encoding::default_external))
     end
 
+    def concat(*val)
+      val.each do |v|
+        push(*v)
+      end
+    end
+
     def push(*val)
       diff = size + val.size - @@config.history_size
-      shift(diff) if diff > 0
+      if diff > 0
+        if diff <= size
+          shift(diff)
+        else
+          diff -= size
+          clear
+          val.shift(diff)
+        end
+      end
       super(*(val.map{ |v| String.new(v, encoding: Encoding::default_external) }))
     end