script/isolate_for_tests

   1 #!/usr/bin/env ruby
   2 # scripts/Makefiles can read and eval the output of this script and
   3 # use it as RUBYLIB
   4 require 'rubygems'
   5 require 'isolate'
   6 fp = File.open(__FILE__, "rb")
   7 fp.flock(File::LOCK_EX)
   8
   9 ruby_engine = defined?(RUBY_ENGINE) ? RUBY_ENGINE : 'ruby'
  10 opts = {
  11   :system => false,
  12   # we want "ruby-1.8.7" and not "ruby-1.8", so disable :multiruby
  13   :multiruby => false,
  14   :path => "tmp/isolate/#{ruby_engine}-#{RUBY_VERSION}",
  15 }
  16
  17 pid = fork do
  18   Isolate.now!(opts) do
  19     gem 'sqlite3-ruby', '1.2.5'
  20     gem 'kgio', '1.1.0'
  21     gem 'rack', '1.1.0'
  22   end
  23 end
  24 _, status = Process.waitpid2(pid)
  25 status.success? or abort status.inspect
  26 lib_paths = Dir["#{opts[:path]}/gems/*-*/lib"].map { |x| File.expand_path(x) }
  27 libs = "tmp/isolate/.#{ruby_engine}-#{RUBY_VERSION}.libs"
  28 File.open("#{libs}.#$$", "w") { |fp| fp.puts lib_paths.join(':') }
  29 File.rename("#{libs}.#$$", libs)
  30
  31 # pure Ruby gems can be shared across all Rubies
  32 %w(3.0.0).each do |rails_ver|
  33   opts[:path] = "tmp/isolate/rails-#{rails_ver}"
  34   pid = fork do
  35     Isolate.now!(opts) do
  36       gem 'rails', rails_ver
  37     end
  38   end
  39   _, status = Process.waitpid2(pid)
  40   status.success? or abort status.inspect
  41   more = Dir["#{opts[:path]}/gems/*-*/lib"].map { |x| File.expand_path(x) }
  42   lib_paths.concat(more)
  43 end