It was fun getting this to work, but in practice Xcode is the way to go. There are however bits and pieces of interest if you want to script certain aspects that otherwise require "manual clicking" in Xcode.
Build iOS and Mac apps caveman style
This is an example project setup for building iOS and Mac apps using the
command line and your favorite text editor, no Xcode required. This is
possible with a simple, minimalist Rakefile and a couple of command line
tools. This allows you to completely understand and control your
development environment from top to bottom. No more messing around with
buggy and bloated IDE's.
TODO: document motivation and how to get started.
Released under the MIT license.
Copyright (c) 2014 Konstantin Bender.
Permission is hereby granted, free of charge, to any person obtaining a copy of this software and associated documentation files (the "Software"), to deal in the Software without restriction, including without limitation the rights to use, copy, modify, merge, publish, distribute, sublicense, and/or sell copies of the Software, and to permit persons to whom the Software is furnished to do so, subject to the following conditions:
The above copyright notice and this permission notice shall be included in all copies or substantial portions of the Software.
THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.