Butlerfile

{
  "tasks" : [
    {
      "buildchain" : [
        {
          "providecompass" : false,
          "args" : [
            "-t",
            "expanded"
          ],
          "type" : "builtin",
          "compiler" : "sassc",
          "version" : "3.3.0"
        },
        {
          "args" : [
            "--autoprefixer.browsers",
            "> 1%, last 2 versions, ie >= 9"
          ],
          "type" : "builtin",
          "compiler" : "autoprefixer",
          "version" : "6.3.3"
        }
      ],
      "input" : "sass\/all.scss",
      "type" : "watch",
      "output" : "css\/all.css",
      "observe" : {
        "path" : "sass"
      }
    },
    {
      "buildchain" : [
        {
          "providecompass" : false,
          "args" : [
            "-t",
            "expanded"
          ],
          "type" : "builtin",
          "compiler" : "sassc",
          "version" : "3.3.0"
        },
        {
          "args" : [
            "--autoprefixer.browsers",
            "> 1%, last 2 versions, ie >= 9"
          ],
          "type" : "builtin",
          "compiler" : "autoprefixer",
          "version" : "6.3.3"
        }
      ],
      "input" : "sass\/grid-support-backend.scss",
      "type" : "watch",
      "output" : "css\/grid-support-backend.css",
      "observe" : {
        "path" : "sass"
      }
    }
  ]
}