libxslt.rb

require 'formula'

class Libxslt < Formula
  homepage 'http://xmlsoft.org/XSLT/'
  url 'ftp://xmlsoft.org/libxml2/libxslt-1.1.28.tar.gz'
  mirror 'http://xmlsoft.org/sources/libxslt-1.1.28.tar.gz'
  sha1 '4df177de629b2653db322bfb891afa3c0d1fa221'

  keg_only :provided_by_osx

  depends_on 'https://gist.github.com/steakknife/8968844/raw/libxml2.rb'
  
  def patches_repo
    'https://raw2.github.com/sparklemotion/nokogiri/master/ports/patches/libxslt/'
  end
  
  def patches
    %w[
      0001-Adding-doc-update-related-to-1.1.28.patch
      0002-Fix-a-couple-of-places-where-f-printf-parameters-wer.patch
      0003-Initialize-pseudo-random-number-generator-with-curre.patch
      0004-EXSLT-function-str-replace-is-broken-as-is.patch
      0006-Fix-str-padding-to-work-with-UTF-8-strings.patch
      0007-Separate-function-for-predicate-matching-in-patterns.patch
      0008-Fix-direct-pattern-matching.patch
      0009-Fix-certain-patterns-with-predicates.patch
      0010-Fix-handling-of-UTF-8-strings-in-EXSLT-crypto-module.patch
      0013-Memory-leak-in-xsltCompileIdKeyPattern-error-path.patch
      0014-Fix-for-bug-436589.patch    
    ].map { |x| patches_repo + x }
  end
  
  def libxml2_prefix
    Formula.factory('libxml2').prefix
  end
  
  def install
    system "./configure", "--disable-dependency-tracking",
                          "--prefix=#{prefix}",
                          "--with-libxml-prefix=#{libxml2_prefix}"
    system "make"
    system "make install"
  end
  
  def nokogiri_options
    '--use-system-libraries --with-iconv-dir="$(brew --prefix libiconv)" --with-xml2-config="$(brew --prefix libxml2)/bin/xml2-config" --with-xslt-config="$(brew --prefix libxslt)/bin/xslt-config"'
  end

  def caveats; <<-EOS.undent
    To allow the nokogiri gem to link against this libxslt run:
    
      NOKOGIRI_USE_SYSTEM_LIBRARIES=1 gem install nokogiri -- #{nokogiri_options}
      
    For bundler to be permanently configured:
      bundle config build.nokogiri #{nokogiri_options}
     
    For bundler to be configured for the current local project directory only:
      bundle config --local build.nokogiri #{nokogiri_options}

    # 1. add to the top of the Gemfile to workaround the nokogiri build bug
    require './.nokogiri-brew-osx'
    
    # 2. add this to .nokogiri-brew-osx.rb
    #### better nokogiri support
    if %x(uname).chop == 'Darwin'
      nokogiri_libxml2 ||= system '"$(brew --prefix libxml2)/bin/xml2-config" --version 2>/dev/null | grep -q 2.8.0'
      nokogiri_libxslt ||= system 'grep -q "consistent use of xslt processor" "$(brew --prefix libxslt)/NEWS"'
      nokogiri_libiconv ||= system 'brew info libiconv | grep -qv Not'
      unless nokogiri_libxml2 && nokogiri_libxslt && nokogiri_libiconv && !ENV.include?('NOKOGIRI_NOTICE_SHOWN')
        ENV['NOKOGIRI_NOTICE_SHOWN'] = '1'
        $stderr.puts 'Nokogiri will install faster by reinstalling with :'
        $stderr.puts
        $stderr.puts ' brew install https://gist.github.com/steakknife/8968844/raw/libxml2.rb --without-python' unless nokogiri_libxml2
        $stderr.puts ' brew install https://gist.github.com/steakknife/8969334/raw/libxslt.rb' unless $nokogiri_libxslt
        $stderr.puts ' brew install libiconv' unless nokogiri_libiconv
        $stderr.puts
      else
        $stderr.puts 'Configuring Nokogiri for brew-ed dependencies'
        ENV['NOKOGIRI_USE_SYSTEM_LIBRARIES'] = '1'
        nokogiri_options = "#{nokogiri_options}"
        system "mkdir -p .bundle; grep -q 'BUNDLE_BUILD__NOKOGIRI' .bundle/config 2>/dev/null || echo 'BUNDLE_BUILD__NOKOGIRI: #{nokogiri_options}' >> .bundle/config"
      end
    end
    #### better nokogiri support
  EOS
  end
end