[Truffle] JT: default to jruby if MRI is not available or too old

jruby · Feb 26, 2016 · aaf2b01 · aaf2b01
1 parent 98e9c40
commit aaf2b01
Showing 1 changed file with 6 additions and 1 deletion.
diff --git a/tool/jt.rb b/tool/jt.rb
@@ -70,7 +70,12 @@ def self.find_ruby
     if ENV["RUBY_BIN"]
       ENV["RUBY_BIN"]
     else
-      "ruby"
+      version = `ruby -e 'print RUBY_VERSION' 2>/dev/null`
+      if version.start_with?("2.")
+        "ruby"
+      else
+        find_jruby
+      end
     end
   end