google_mechanize.rb

require 'mechanize'

def google_search(query_text)
	agent=Mechanize.new
	goog = agent.get "http://www.google.com"
	search = goog.form_with(:action => "/search")
	search.field_with(:name => 'q').value = query_text
	results = search.submit
	return results
end

require 'tempfile'

def with_temp_string(s)
	file = Tempfile.new("arbitrary_prefix")
	file.write(s)
	file.close
	yield file.path
	sleep 5
	file.unlink 
end

require 'launchy'

ENV['BROWSER'] = 'google-chrome'

def browse_s(s)
	with_temp_string(s) {|path| Launchy::Application::Browser.new.open(path)}
end

def browse_page(mechanize_page)
	browse_s mechanize_page.body
end

def unwrap_link(l)
	u = URI.parse(l)
	p = CGI.parse(u.query)
	return p['q'].first
end

def links(search_results)
	return search_results.search("#ires ol .g .r a")
	.map {|x| x['href']}
	.keep_if {|x| URI.parse(x).path == "/url"}
	.map {|x| unwrap_link x}
end

def im_feeling_lucky(search)
	links = links(google_search(search))
	Launchy.open(links.first)
end