macvim.rb

require 'formula'

class Macvim < Formula
  homepage 'http://code.google.com/p/macvim/'
  url 'https://github.com/b4winckler/macvim/tarball/snapshot-61'
  version '7.3-61'
  md5 '18218561913ae5d5ad68c1b6a6df5a1f'
  head 'https://github.com/b4winckler/macvim.git', :branch => 'master'

  def options
    [
      # Building custom icons fails for many users, so off by default.
      ["--custom-icons", "Try to generate custom document icons."],
      ["--with-cscope", "Build with Cscope support."],
      ["--with-envycoder", "Build with Envy Code R Bold font."],
      ["--override-system-vim", "Override system vim."],
      ["--enable-clipboard", "Enable System clipboard handling in the terminal."]
    ]
  end

  depends_on 'cscope' if ARGV.include? '--with-cscope'

  def install
    # MacVim's Xcode project gets confused by $CC, so remove it
    ENV['CC'] = nil
    ENV['CFLAGS'] = nil
    ENV['CXX'] = nil
    ENV['CXXFLAGS'] = nil

    # Set ARCHFLAGS so the Python app (with C extension) that is
    # used to create the custom icons will not try to compile in
    # PPC support (which isn't needed in Homebrew-supported systems.)
    arch = MacOS.prefer_64_bit? ? 'x86_64' : 'i386'
    ENV['ARCHFLAGS'] = "-arch #{arch}"

    args = ["--with-macsdk=#{MACOS_VERSION}",
      "--with-features=huge",
        "--with-tlib=ncurses",
        "--enable-multibyte",
        "--with-macarchs=#{arch}",
      "--enable-perlinterp",
        "--enable-pythoninterp",
        "--enable-rubyinterp",
        "--enable-tclinterp"]

      args << "--enable-cscope" if ARGV.include? "--with-cscope"
      args << "--enable-clipboard" if ARGV.include? "--enable-clipboard"

      unless ARGV.include? "--custom-icons"
        inreplace "src/MacVim/icons/Makefile", "$(MAKE) -C makeicns", ""
        inreplace "src/MacVim/icons/make_icons.py", "dont_create = False", "dont_create = True"
      end

      if ARGV.include? "--with-envycoder"
        # Font download location has changed.
        # This is fixed in MacVim trunk, but not in the stable tarball.
        inreplace "src/MacVim/icons/Makefile",
          "http://download.damieng.com/latest/EnvyCodeR",
          "http://download.damieng.com/fonts/original/EnvyCodeR-PR7.zip"
      else
        # Remove the font from the build dependencies
        inreplace "src/MacVim/icons/Makefile",
          '$(OUTDIR)/MacVim-generic.icns: make_icons.py vim-noshadow-512.png loadfont.so Envy\ Code\ R\ Bold.ttf',
          "$(OUTDIR)/MacVim-generic.icns: make_icons.py vim-noshadow-512.png loadfont.so"
      end

      if `ruby -v` =~ /1\.9\.2/  
        onoe "Can't install MacVim with ruby 1.9.2. Please change your environment to use 1.8.7"
        raise "Can't install MacVim using ruby 1.9.2"
      else
        ohai "Using Ruby that isn't 1.9"
      end
      system "make"

      prefix.install "src/MacVim/build/Release/MacVim.app"
      inreplace "src/MacVim/mvim", /^# VIM_APP_DIR=\/Applications$/,
        "VIM_APP_DIR=#{prefix}"
      bin.install "src/MacVim/mvim"

      # Create MacVim vimdiff, view, ex equivalents
      executables = %w[mvimdiff mview mvimex]
      executables += %w[vi vim vimdiff view vimex] if ARGV.include? "--override-system-vim"
      executables.each {|f| ln_s bin+'mvim', bin+f}
  end

  def caveats; <<-EOS.undent
    MacVim.app installed to:
    #{prefix}

    To link the application to a normal Mac OS X location:
        brew linkapps
    or:
        ln -s #{prefix}/MacVim.app /Applications
    EOS
  end
end