ag(The Silver Searcher)でEUC-JP/Shift-JISのファイルも検索できるようにしてみた - Thinking-megane http://blog.monochromegane.com/blog/2013/09/15/the-silver-searcher-detects-japanese-char-set/ homebrew 化した。

the_legacy_searcher.rb

require 'formula'

# Documentation: https://github.com/mxcl/homebrew/wiki/Formula-Cookbook
#                /usr/local/Library/Contributions/example-formula.rb
# PLEASE REMOVE ALL GENERATED COMMENTS BEFORE SUBMITTING YOUR PULL REQUEST!

class TheLegacySearcher < Formula
  homepage ''
  url 'https://github.com/monochromegane/the_silver_searcher/archive/legacy-0.1.tar.gz'
  sha1 '9608f10564c64081a38a345ee6848c570a0266f9'

  depends_on :automake
  depends_on :autoconf

  depends_on 'pkg-config' => :build
  depends_on 'pcre'
  depends_on 'xz'

  def install
    # Stable tarball does not include pre-generated configure script
    system "aclocal -I #{HOMEBREW_PREFIX}/share/aclocal"
    system "autoconf"
    system "autoheader"
    system "automake --add-missing"

    system "./configure", "--disable-dependency-tracking",
                          "--prefix=#{prefix}"
    system "make"
    system "make install"

    bash_completion.install 'ag.bashcomp.sh'
  end

  def test
    system "#{bin}/ag", "--version"
  end
end