Initial project skeleton.

This includes a working gyp-based build of an executable that uses LLVM.

README.md

@@ -15,13 +15,12 @@ Coming soon (maybe):
 ## Quickstart
 
     git clone https://github.com/benvanik/xenia.git
-    ./xenia-build.sh setup
-    ./xenia-build.sh build
-    ./bin/xenia some.xex
+    cd xenia && source xeniarc
+    xb setup
+    xb build
+    ./bin/xenia-run some.xex
 
-## Building
-
-### Requirements
+## Requirements
 
 You must have a 64-bit machine for building and running the project. Always
 run your system updater before building and make sure you have the latest
@@ -43,8 +42,85 @@ Windows SDK, the full DirectX SDK, and the Kinect SDK.
 
 #### OS X
 
-* [Xcode 4](http://developer.apple.com/xcode/)
+Only tested on OS X 10.8 (Mountain Lion).
 
-### Dependencies
+* [Xcode 4](http://developer.apple.com/xcode/) + command line tools
+* [Homebrew](http://mxcl.github.com/homebrew/)
 
-TODO
+## Building
+
+A simple build script is included to manage basic tasks such as building
+dependencies.
+
+    ./xenia-build.py --help
+
+The `xeniarc` bash file has some aliases that save some keypresses.
+
+    source xeniarc
+    xb  -> python xenia-build.py
+    xbb -> python xenia-build.py build
+    xbc -> python xenia-build.py clean
+
+### Commands
+
+#### setup
+
+Run this on initial checkout to pull down all dependencies and setup LLVM.
+
+    xb setup
+
+#### pull
+
+Does a `git pull` in addition to updating submodules and rebuilding dependencies
+and gyp outputs. Use this, if possible, instead of git pull.
+
+    xb pull
+
+#### gyp
+
+Updates all of the supported gyp projects. If you're using Visual Studio or
+Xcode to build or debug your projects you'll need to run this after you change
+gyp/gypi files.
+
+    xb gyp
+
+#### build
+
+Builds all xenia targets using ninja. Release is built by default; specify
+`--debug` to build the debug configuration.
+
+    xb build
+    xb build --debug
+
+#### clean
+
+Cleans just xenia outputs from the build/ directory. A following build will just
+have the rebuild xenia and not all of the dependencies.
+
+    xb clean
+
+#### nuke
+
+Cleans up xenia outputs as well as all dependencies. A full build will be
+required after this - including LLVM - so only do this if you want to reclaim
+your disk space or something is really wrong.
+
+    xb nuke
+
+## Running
+
+Use the wrapper shell scripts under `bin/` to run tools. They will ensure the
+tools are built (but not that they are up to date) before running and allow
+switching between the debug and release variants with `--debug`.
+
+### xenia-info
+
+Dumps information about a xex file.
+
+    ./bin/xenia-info some.xex
+
+### xenia-run
+
+Runs a xex.
+
+    ./bin/xenia-run some.xex