uninstall-osx-pkg.rb

#!/usr/bin/ruby

# Example script to "uninstall" OSX .pkg files
# Probably very dangerous.
#
# Eric Butler <eric@codebutler.com>

require 'fileutils'

PKGS = %w(
  net.refractions.postgis14-snow
  org.postgresql.postgresql-snow
  dbsgeo.com.mapnikFramework.Libraries.pkg
  dbsgeo.com.mapnikFramework.mapnik.pkg
  dbsgeo.com.mapnikFramework.postgis.pkg
  dbsgeo.com.mapnikFramework.raster.pkg
  dbsgeo.com.mapnikFramework.shape.pkg
  dbsgeo.com.mapnikFramework.ttf.pkg
  dbsgeo.com.mapnikPython26.cairo.pkg
  dbsgeo.com.mapnikPython26.libboost_python_system2.6.pkg
  dbsgeo.com.mapnikPython26.mapnik-1.pkg
  dbsgeo.com.mapnikPython26.mapnik.pkg
  dbsgeo.com.mapnikPython26.ogcserver.pkg
  net.refractions.geos-framework-snow
  net.refractions.postgis14-snow
)

PKGS.each do |pkg|
  puts pkg

  info = `pkgutil --info #{pkg}`
  if $? == 0
    info = Hash[info.split("\n").map { |line| line.split(':').map{ |x| x.strip } }]

    prefix = File.join(info['volume'], info['location'])

    files = `pkgutil --files #{pkg}`.split("\n").map { |file| File.join(prefix, file) }
    files.each do |file|
      if File.file?(file)
        puts "Removing #{file}"
        File.delete(file)
      elsif File.directory?(file)
        puts "Removing dir #{file}"
        FileUtils.rm_rf(file)
      else
        puts "File not found: #{file}"
      end
    end
    
    `pkgutil --forget #{pkg}`
  end
end