Class: Fenris::Command

Inherits:
Object
  • Object
show all
Defined in:
lib/fenris/command.rb

Class Method Summary collapse

Class Method Details

.parse(args) ⇒ Object


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# File 'lib/fenris/command.rb', line 86

def self.parse(args)
  extra = []
  options = OpenStruct.new
  options.port     = 10001
  options.host     = Socket.gethostname
  options.user     = ENV['FENRIS_USER']
  options.password = ENV['FENRIS_AUTHKEY']
  options.config   = ENV['FENRIS_CONFIG'] || "#{ENV["HOME"]}/.fenris"
  options.debug    = !! ENV['FENRIS_DEBUG']
  options.autosync = true

  if i = args.index("exec")
    extra = args[i..(args.length)]
    if i > 0
      args  = args[0..(i-1)]
    else
      args  = []
    end
  end

  opts = OptionParser.new do |opts|
    opts.banner    = "Usage: fenris [options] COMMAND"
    opts.separator ""
    opts.separator "Commands:"
    opts.separator ""
    opts.separator "  fenris info                          # info about current user and connections"
    opts.separator "  fenris useradd NAME                  # create a new subaccount"
    opts.separator "  fenris userdel NAME                  # delete a subaccount"
    opts.separator "  fenris add USER                      # allow USER to consume service"
    opts.separator "  fenris remove USER                   # disallow USER to consume service"
    opts.separator "  fenris provide BINDING               # provide a local service"
    opts.separator "  fenris consume [ USER [ BINDING ] ]  # consume one (or all) remote services"
    opts.separator "  fenris exec COMMAND                  # consume services and run COMMAND.  Terminates when command exits."
    opts.separator "  fenris sync                          # sync config with broker"
    opts.separator "  fenris rekey                         # generate a new authkey for the user"
    opts.separator "  fenris bind USER BINDING             # bind a remote service to a local binding"
    opts.separator ""
    opts.separator "Bindings can take the form of:"
    opts.separator ""
    opts.separator "  PORT, :PORT, HOST:PORT, /PATH/TO/UNIX_SOCKET, or -- for STDIN"
    opts.separator ""
    opts.separator "Options:"

    opts.on("-u", "--user USER", "Connect as USER.  Default is $FENRIS_USER.") do |user|
      options.user = user
    end

    opts.on("-c", "--config DIR", "Store config information in DIR.  Default is $HOME/.fenris or $FENRIS_CONFIG.") do |dir|
      options.config = dir
    end

    opts.on("-h", "--hostname HOST", "Hostname given to consumers on 'provide'. Default is `hostname`.") do |host|
      options.host = host
    end

    opts.on("-p", "--port PORT", "") do |port|
      options.port = port
    end

    opts.on("-q", "--quiet", "Do not print log messages.") do
      options.quiet = true
    end

    opts.on("-d", "--debug", "Print debugging messages.  Default is $FENRIS_DEBUG.") do
      options.debug = true
    end

    opts.on("-a", "--[no-]autosync", "Automatically sync updates from the broker. Default is true.") do |auto|
      options.autosync = auto
    end

    opts.on("-h", "--help", "Show this message") do
      puts opts
      exit
    end

    opts.on("--version", "Show version") do
      puts Fenris::VERSION
      exit
    end
    opts.separator ""
  end

  begin
    commands = opts.parse!(args)
  rescue OptionParser::InvalidOption
    puts opts
    exit
  end
  [ commands + extra, options, opts.to_s ]
end

.run(args) ⇒ Object


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# File 'lib/fenris/command.rb', line 8

def self.run(args)
  begin
    run_command(args)
  rescue RestClient::Conflict
    puts "Duplicate"
  rescue RestClient::Unauthorized
    puts "Unauthorized"
  rescue RestClient::ResourceNotFound
    puts "Resource Not Found"
  rescue Fenris::NoSuchProvider => e
    puts "No such provider '#{e.message}'"
    exit
  end
end

.run_command(args) ⇒ Object


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# File 'lib/fenris/command.rb', line 23

def self.run_command(args)
  url = URI.parse(ENV['FENRIS_URL'] || 'https://broker.fenris.cc/')
  args, options, help = parse(args)
  fenris = Fenris::Client.new url, options
  command = args.shift
  arg = args.first

  case [ command, args.length ]
  when [ "info", 0 ]
    fenris.update_user_config
    printf "INFO:\n"
    printf "  %s\n", fenris.user_name
    unless fenris.users.empty?
      puts "SUBACCOUNTS:"
      fenris.users.each { |c| printf "  %-20s\n", c["name"] }
    end
    unless fenris.consumers.empty?
      puts "CLIENTS:"
      fenris.consumers.each { |c| printf "  %-20s\n", c["name"] }
    end
    unless fenris.providers.empty?
      puts "SERVICES:"
      fenris.providers.each { |c| printf "  %-20s  [%s] %s\n", c["name"], c["binding"], c["location"] }
    end
  when [ "useradd", 1 ]
    fenris.useradd(arg)
    puts "user added"
  when [ "userdel", 1 ]
    fenris.userdel(arg)
    puts "ok"
  when [ "bind", 2 ]
    fenris.bind(args[0], args[1])
  when [ "sync", 0 ]
    fenris.update_config
  when [ "rekey", 0 ]
    fenris.rekey
    puts "rekey complete"
  when [ "add", 1 ]
    fenris.add(arg)
    puts "ok"
  when [ "remove", 1 ]
    fenris.remove(arg)
    puts "ok"
  when [ "provide", 1 ]
    fenris.provide(arg)
  when [ "consume", 0 ]
    fenris.consume
  when [ "consume", 1 ]
    fenris.consume(arg)
  when [ "consume", 2 ]
    fenris.consume(args[0] => args[1])
  else
    case command
    when "exec"
      options.quiet = true
      Fenris::Client.new(url, options).exec(*args)
    else
      puts help
      exit
    end
  end
end