1 files changed, 22 insertions, 0 deletions
diff --git a/jni/ruby/ext/io/console/lib/console/size.rb b/jni/ruby/ext/io/console/lib/console/size.rb
new file mode 100644
index 0000000..519bc3b
--- /dev/null
+++ b/jni/ruby/ext/io/console/lib/console/size.rb
@@ -0,0 +1,22 @@
+# fallback to console window size
+def IO.default_console_size
+  [
+    ENV["LINES"].to_i.nonzero? || 25,
+    ENV["COLUMNS"].to_i.nonzero? || 80,
+  ]
+end
+
+begin
+  require 'io/console'
+rescue LoadError
+  class IO
+    alias console_size default_console_size
+  end
+else
+  # returns console window size
+  def IO.console_size
+    console.winsize
+  rescue NoMethodError
+    default_console_size
+  end
+end