Class: VolumeVisualizer::Cli

Inherits:
Thor
  • Object
show all
Defined in:
lib/volume_visualizer/cli.rb

Instance Method Summary collapse

Instance Method Details

#generate ⇒ Object 



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# File 'lib/volume_visualizer/cli.rb', line 89

def generate
  json_filename = File.join( options[:output_path], options[:data_name] + ".json" )
  File.open(json_filename, "w") do |json|
    json.puts zfs.to_json
  end
  STDERR.puts "generated data file #{json_filename}"

  html_filename = File.join( options[:output_path], "index.html" )
  FileUtils.cp html_source, html_filename
  STDERR.puts "installed #{html_filename}"
end

#instaweb ⇒ Object 



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# File 'lib/volume_visualizer/cli.rb', line 114

def instaweb
  if false && (ENV["USER"] != "root") # && not in parse mode
    STDERR.puts <<-EOF
ERROR: Sorry. Instaweb mode requires root privileges, or requires
  input data to parse. Try one of these:

sudo vv instaweb

  or 

sudo `vv show-command` > /tmp/data
vv instaweb --parse-file /tmp/data
    EOF
    exit 1
  end

  port = nil
  begin
    port = rand(20000) + 20000
    server = WEBrick::HTTPServer.new(
      :AccessLog => [],
      :Port => port,
      :Logger => WEBrick::Log::new("/dev/null", 7)
    )
  rescue Errno::EADDRINUSE
    puts "ERROR: port #{port} already in use -- retrying"
    retry
  end


  server.mount_proc "/" do |req, res|
    res.body = File.open(html_source).read
  end

  zfs_data = zfs.to_json
  server.mount_proc "/volviz.json" do |req, res|
    res.body = zfs_data
  end

  trap 'INT' do 
    server.shutdown 
  end

  STDERR.puts "server running on http://#{Socket.gethostname}:#{port}"

  server.start
end

#show_command ⇒ Object 



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# File 'lib/volume_visualizer/cli.rb', line 57

def show_command
  puts ZFS::Pool.query_command options[:volume]
end