gistfile1.txt

require 'formula'
require 'net/http'

<<-COMMENTS
This is the Homebrew formula for PHP's PostgreSQL modules.
COMMENTS

class PhpPostgresql <Formula
  homepage 'http://www.php.net/'

  depends_on 'postgresql'
  
  def filename; "php-#{@version}.tar.bz2"; end
  def url; "http://www.php.net/distributions/" + filename; end
  
  @@md5s = {
    # Included with Mac OS 10.6, included to optimize for common case
    'php-5.3.1.tar.bz2' => '63e97ad450f0f7259e785100b634c797',
  }
  
  def self.release_md5_for filename
    # Look for a link to the file closely followed by "md5: ..." on the PHP releases page
    /<a\s+href="[^"]*\/#{Regexp.quote filename}(?:\/[^"]+)?"[^>]*>[^<]*<\/a>\s*<br\s*\/?>\s*<span[^>]*>md5:\s*([a-zA-Z0-9]+)/mi.match(@@release_html ||= %x[curl -s #{'http://www.php.net/releases/'}]) && $1 || false
  end
  
  def self.md5_for filename
    @@md5s[filename] ||= release_md5_for(filename)
  end
  
  def md5
    @md5 ||= PhpPostgresql.md5_for(filename)
  end

  def initialize *args, &block
    # We need to figure out which version of PHP this mac is running
    @version = %x[php -v].split(' ', 3)[1]
    # .. so we can set the URL
    @url = url
    # .. and we can try to get the md5
    @md5 = md5
    
    super *args, &block
  end
  
  def php_extensions; lib+'php/extensions'; end

  def install
    extensions = ['pgsql']
    extensions << 'pdo_pgsql' if File.directory? 'ext/pdo_pgsql'
    
    args = ["--prefix=#{prefix}"]    
    
    extensions.each do |extension|
      ohai "Compiling #{extension} extension"
      
      Dir.chdir "ext/#{extension}" do
        system '/usr/bin/phpize'
        system './configure', *args
        system '/usr/bin/make'
      end
    end
    
    php_extensions.mkpath
    extensions.each do |extension|
      php_extensions.install Dir["ext/#{extension}/modules/#{extension}.so"]
    end
  end

  def caveats
    <<-CAVEATS.undent
      The extensions are installed into:
        #{php_extensions}

      To use the module you'll need to include it in your php.ini:
        extension=#{php_extensions}/pgsql.so
      or use dl in your code:
        dl('#{php_extensions}/pgsql.so');

      By default, OS X doesn't include a php.ini so you can create one at:
        /etc/php.ini.
      
      This compiles the PostgreSQL extension from the PHP source, attempting to use Mac OS X's version of PHP (currently #{@version}). If you update Mac OS X and this changes the PHP version you may need to uninstall and re-install this forumula.
    CAVEATS
  end
end