1 files changed, 41 insertions, 0 deletions
diff --git a/.azure-pipelines/rbreadline.diff b/.azure-pipelines/rbreadline.diff
new file mode 100644
index 0000000000..c139577610
--- /dev/null
+++ b/.azure-pipelines/rbreadline.diff
@@ -0,0 +1,41 @@
+diff --git a/rbreadline.rb b/rbreadline.rb
+index c710961..e35408c 100644
+--- a/rbreadline.rb
++++ b/rbreadline.rb
+@@ -16,6 +16,7 @@ end
+ 
+ module RbReadline
+   require 'etc'
++  require 'io/console'
+ 
+   RL_LIBRARY_VERSION = "5.2"
+   RL_READLINE_VERSION  = 0x0502
+@@ -1092,6 +1093,9 @@ module RbReadline
+   @current_readline_init_include_level = 0
+   @current_readline_init_lineno = 0
+ 
++  # Used in windows 
++  @is_pipe = false
++
+   ENV["HOME"] ||= "#{ENV["HOMEDRIVE"]}#{ENV["HOMEPATH"]}"
+   if !File.directory? ENV["HOME"]
+     raise RuntimeError.new("HOME environment variable (or HOMEDRIVE and HOMEPATH) must be set and point to a directory")
+@@ -4490,6 +4494,10 @@ module RbReadline
+     end
+ 
+     def rl_getc(stream)
++	  # below added as test for whether we're connected to a pipe or a keyboard.
++      # Pipe connection is probably running under a test suite.
++      return (stream.getc || EOF rescue EOF) if @is_pipe
++
+       while (@kbhit.Call == 0)
+         # If there is no input, yield the processor for other threads
+         sleep(@_keyboard_input_timeout)
+@@ -4740,6 +4748,7 @@ module RbReadline
+   def readline_internal_charloop()
+     lastc = -1
+     eof_found = false
++	@is_pipe = (!@rl_outstream.winsize rescue true)
+ 
+     while (!@rl_done)
+       lk = @_rl_last_command_was_kill