Class: Bio::Shell::Setup

Inherits:
Object show all
Defined in:
lib/bio/shell/setup.rb

Instance Method Summary collapse

Constructor Details

#initialize ⇒ Setup

Returns a new instance of Setup.



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# File 'lib/bio/shell/setup.rb', line 14

def initialize
  check_ruby_version

  # command line options
  getoptlong

  # setup working directory
  savedir = setup_savedir

  # load configuration and plugins
  Bio::Shell.configure(savedir)

  # set default to irb mode
  Bio::Shell.cache[:mode] = ((defined? @mode) && @mode) || :irb

  case Bio::Shell.cache[:mode]
  when :web
    # setup rails server
    Bio::Shell::Web.new
  when :irb
    # setup irb server
    Bio::Shell::Irb.new
  when :script
    # run bioruby shell script
    Bio::Shell::Script.new(@script)
  end
end

Instance Method Details

#check_ruby_version ⇒ Object 



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# File 'lib/bio/shell/setup.rb', line 42

def check_ruby_version
  if RUBY_VERSION < "1.8.2"
    raise "BioRuby shell runs on Ruby version >= 1.8.2"
  end
end

#getoptlong ⇒ Object

command line argument (working directory or bioruby shell script file)



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# File 'lib/bio/shell/setup.rb', line 49

def getoptlong
  opts = GetoptLong.new
  opts.set_options(
    [ '--rails',   '-r',  GetoptLong::NO_ARGUMENT ],
    [ '--web',     '-w',  GetoptLong::NO_ARGUMENT ],
    [ '--console', '-c',  GetoptLong::NO_ARGUMENT ],
    [ '--irb',     '-i',  GetoptLong::NO_ARGUMENT ]
  )
  opts.each_option do |opt, arg|
    case opt
    when /--rails/, /--web/
      @mode = :web
    when /--console/, /--irb/
      @mode = :irb
    end
  end
end

#install_savedir(savedir) ⇒ Object 



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# File 'lib/bio/shell/setup.rb', line 104

def install_savedir(savedir)
  FileUtils.makedirs(savedir)
end

#setup_savedir ⇒ Object 



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# File 'lib/bio/shell/setup.rb', line 67

def setup_savedir
  arg = ARGV.shift

  # Options after the '--' argument are not parsed by GetoptLong and
  # are passed to irb or rails.  This hack preserve the first option
  # when working directory of the project is not given.
  if arg and arg[/^-/]
    ARGV.unshift arg
    arg = nil
  end

  if arg.nil?
    # run in the current directory
    if File.exist?(Bio::Shell::Core::HISTORY)
      savedir = Dir.pwd
    else
      savedir = File.join(ENV['HOME'].to_s, ".bioruby")
      install_savedir(savedir)
    end
  elsif File.file?(arg)
    # run file as a bioruby shell script
    savedir = File.join(File.dirname(arg), "..")
    @script = arg
    @mode = :script
  else
    # run in new or existing directory
    if arg[/^#{File::SEPARATOR}/]
      savedir = arg
    else
      savedir = File.join(Dir.pwd, arg)
    end
    install_savedir(savedir)
  end

  return savedir
end