namespace :webpacker do
desc "Verifies if Node.js is installed" task :check_node do begin node_version = `node -v` node_version = `nodejs -v` if node_version.blank? required_node_version = "6.4" raise Errno::ENOENT if node_version.blank? if Gem::Version.new(node_version.strip.tr("v", "")) < Gem::Version.new(required_node_version) $stderr.puts "Webpacker requires Node.js >= v#{required_node_version} and you are using #{node_version}" $stderr.puts "Please upgrade Node.js https://nodejs.org/en/download/" $stderr.puts "Exiting!" && exit! end rescue Errno::ENOENT $stderr.puts "Node.js not installed. Please download and install Node.js https://nodejs.org/en/download/" $stderr.puts "Exiting!" && exit! end end
end