It looks like Sublime Text 3 uses OSX-default version of Ruby in build mode. I would like to change the version, since I’m using a newer one. I found some answers for privious version of sublime:

How to edit a native build system in Sublime Text 2?

Setting and changing build systems in Sublime Text 2

Ruby, Sublime Text 2 and RVM help please!

All of them are dealing with Ruby.sublime-build file (given that I have RVM installed), but I can’t this file in Sublime Text 3. May be I should change /Users/Art/Library/Application Support/Sublime Text 3/Packages/User/Ruby.sublime-settings? But any manipulations with it didn’t give me a result.

Any help would be really appreciated!

Here’s what I did:

1. select “Sublime Text” > “Preferences” > “Browse Packages …”

   (this opens ~/Library/Application Support/Sublime Text 3/Packages)

2. open the User directory (create it if it doesn’t exist)
3. inside User create a file Ruby.sublime-build with the following content (adjust the path):

   {
       "cmd": ["/your/path/to/bin/ruby", "$file"],
       "file_regex": "^(...*?):([0-9]*):?([0-9]*)",
       "selector": "source.ruby"
   }

Your directory structure should look like this:

~/
  Library/
    Application Support/
      Sublime Text 3/
        Packages/
          User/
            Ruby.sublime-build