require 'bundler'
require 'bundler/setup'

# require "rake/extensiontask"

Bundler::GemHelper.install_tasks

# desc "remove all generated artifacts except built v8 objects"
# task :clean do
#   sh "rm -rf pkg"
#   sh "rm -rf ext/v8/Makefile"
#   sh "rm -rf ext/v8/*.bundle ext/v8/*.so"
#   sh "rm -rf lib/v8/*.bundle lib/v8/*.so"
# end
# 
# desc "build v8 with debugging symbols (much slower)"
# task "v8:debug" do
#   sh "cd ext/v8/upstream && make debug"
# end

# Rake::ExtensionTask.new("libv8", eval(File.read("libv8.gemspec"))) do |ext|
#   ext.lib_dir = "lib/libv8"
# end

desc "Get the latest source"
task "fetch" do
  puts "Fetching latest from github..."
  if File.exist? File.join('lib', 'libv8', 'v8') then
    Dir.chdir(File.join('lib', 'libv8', 'v8')) do
      `git fetch`
      `git checkout tags/#{`git tag`.split.last}`
    end
  else
    `git clone https://github.com/v8/v8.git lib/libv8/v8`
    Dir.chdir(File.join('lib', 'libv8', 'v8')) do
      `git checkout tags/#{`git tag`.split.last}`
    end
  end
end

desc "Compile the V8 JavaScript engine"
task "compile" do
  puts "Compiling V8..."
  Dir.chdir(File.join('lib', 'libv8')) do
    `make`
  end
end

desc "Clean up from the build"
task "clean" do
  Dir.chdir(File.join('lib', 'libv8')) do
    `make clean`
  end
end

desc "Create a binary gem for this current platform"
task "binary" => "compile" do
  gemspec = eval(File.read('libv8.gemspec'))
  gemspec.extensions.clear
  gemspec.platform = Gem::Platform.new(RUBY_PLATFORM)
  gemspec.files << "lib/libv8/build/v8/libv8.a"
  FileUtils.mkdir_p 'pkg'
  FileUtils.mv(Gem::Builder.new(gemspec).build, 'pkg')
end