Class: Opal::CliRunners::Nodejs

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# File 'opal/lib/opal/cli_runners/nodejs.rb', line 7
def initialize(output)
 @output ||= output
end

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# File 'opal/lib/opal/cli_runners/nodejs.rb', line 10
def exit_status
 @exit_status
end

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# File 'opal/lib/opal/cli_runners/nodejs.rb', line 10
def output
 @output
end

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# File 'opal/lib/opal/cli_runners/nodejs.rb', line 16
def node_modules
 File.expand_path('../stdlib/nodejs/node_modules', ::Opal .gem_dir )
end

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# File 'opal/lib/opal/cli_runners/nodejs.rb', line 12
def puts(*args)
 output.puts(*args)
end

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# File 'opal/lib/opal/cli_runners/nodejs.rb', line 20
def run(code, argv)
 require 'tempfile'
 tempfile = Tempfile.new('opal-nodejs-runner-')
 # tempfile = File.new('opal-nodejs-runner.js', 'w') # for debugging
 tempfile.write code
 tempfile.close
 system_with_output({'NODE_PATH' => node_modules}, 'node', tempfile.path , *argv)
rescue Errno::ENOENT
 raise MissingNodeJS , 'Please install Node.js to be able to run Opal scripts.'
end

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# File 'opal/lib/opal/cli_runners/nodejs.rb', line 32
def system_with_output(env, *cmd)
 if IO.try_convert(output)
 system(env,*cmd)
 @exit_status = $?.exitstatus
 return
 end
 if RUBY_PLATFORM == 'java'
 # JRuby has issues in dealing with subprocesses (at least up to 1.7.15)
 # @headius told me it's mostly fixed on master, but while we wait for it
 # to ship here's a tempfile workaround.
 require 'tempfile'
 require 'shellwords'
 tempfile = Tempfile.new('opal-node-output')
 system(env,cmd.shelljoin+" > #{tempfile.path}")
 @exit_status = $?.exitstatus
 captured_output = File.read tempfile.path
 tempfile.close
 else
 require 'open3'
 captured_output, status = Open3.capture2(env,*cmd)
 @exit_status = status.exitstatus
 end
 output.write captured_output
end