Snippet: Compiling XIBs into NIBs in your Nukefile

Here's a function I use in my Nukefile to compile XIBs into NIBs:

(function compile-xibs-from-to (xibs to_path)
     (if (and (!= target "clobber") (!= target "clean"))
         (then
              (SH "mkdir -p #{to_path}")
              ((filelist xibs) each:(do (xib)
                                        (set nib (xib stringByReplacingPathExtensionWith:"nib"))
                                        (SH "ibtool #{xib} --compile #{to_path}/#{( nib fileName )}")))
              (filelist "^#{to_path}/[^/]*.nib$"))
         (else nil)))

(set @nib_files (compile-xibs-from-to "^resources/views/[^/]*.xib$" "build/nibs"))

It uses ibtool to compile the .xib into a .nib:

ibtool source.xib --compile target.nib