positioning windows in os x yosemite with JavaScript for Automation (https://developer.apple.com/library/prerelease/mac/releasenotes/interapplicationcommunication/rn-javascriptforautomation/index.html)

repozish.js

/* global Application, ObjC, $ */

/**
 * repozish.js
 *
 * this is an example of using os x yosemite's "JavaScript for Automation":
 *
 *   https://developer.apple.com/library/prerelease/mac/releasenotes/interapplicationcommunication/rn-javascriptforautomation/index.html
 *
 * it repositions some windows based on some position settings. you can run
 * this from a terminal with:
 *
 *   $ osascript repozish.js
 *
 * TODO: figure out how to read positions from/write positions to a file
 */

// importing this gives us the `$.printf` function and probably some other
// stuff
ObjC.import('stdio');

/**
 * positions of the windows
 *
 * you could query these with something like:
 *
 *     var positions = ['Terminal', 'MacVim']
 *       .reduce(function(positions, appName) {
 *         var properties = Application(appName).windows[0].properties();
 *         positions[appName] = properties.bounds;
 *         return positions;
 *       }, {});
 *
 *      // print this stuff to stdout
 *     $.printf(JSON.stringify(positions, null, 2));
 */

var positions = {
  Terminal: {
    x: 3270,
    y: -388,
    width: 573,
    height: 1412
  },
  MacVim: {
    x: 2551,
    y: -388,
    width: 718,
    height: 1397
  }
};

/**
 * run
 *
 * this is like the 'main' function in C.
 *
 * @param args Array of command line args
 */
function run(args) {
  Object.keys(positions).forEach(function(appName) {
    Application(appName).windows[0].properties = {
      bounds: positions[appName]
    };
  });
}