Class: Xssh::CLI

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

Constant Summary collapse

DEFAULT_INVENTORY = 
File.join(ENV['HOME'], '.xsshrc')
DEFAULT_TEMPLATE = 
File.join(ENV['HOME'], '.xssh.d')

Class Method Summary collapse

Instance Method Summary collapse

Class Method Details

.run(args = ARGV) ⇒ Object 



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# File 'lib/xssh/cli.rb', line 11

def self.run(args = ARGV)
  Xssh::CLI.new.run(args)
end

Instance Method Details

#exec(config) ⇒ Object 



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# File 'lib/xssh/cli.rb', line 31

def exec(config)
  Signal.trap(:INT){ exit 1 }

  info  = Xssh.find(name: config[:name])
  width = info[:name].length
  raise "No host found: `#{info[:name]}`" if info.empty?

  buffer  = StringIO.new
  prefix  = "#{info[:name].to_s.ljust(width)} |"
  session = nil

  begin
    loggers  = []
    loggers << buffer
    loggers << $stdout
    loggers << File.expand_path(File.join(config[:logdir], "#{info[:name]}.log"), ENV['PWD']) if config[:logdir]

    session = Xssh.get(info[:name], **info.merge(log: loggers))
  rescue => e
    raise e
  end

  session
end

#hello ⇒ Object 



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# File 'lib/xssh/cli.rb', line 15

def hello
  puts "hello"
end

#list(config) ⇒ Object 



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# File 'lib/xssh/cli.rb', line 19

def list(config)
  puts Xssh.list(name: config[:name]).map{ |e| e[:name] }.sort.uniq
end

#run(args) ⇒ Object 



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# File 'lib/xssh/cli.rb', line 55

def run(args)
  config = Hash.new
  config[:env]       = []
  config[:inventory] = []
  config[:template]  = []
  config[:command]   = []
  config[:runner]    = self.method(:tty)

  parser = OptionParser.new
  parser.banner  = "#{File.basename($0)} HOST_PATTERN [Options]"
  parser.version = Xssh::VERSION

  parser.on('-i PATH', '--inventory', String, 'The PATH to the inventory file.')            { |v| config[:inventory] << v }
  parser.on('-t PATH', '--template',  String, 'The PATH to the template file or directory.'){ |v| config[:template]  << v }
  parser.on('-L PATH', '--log-dir',   String, 'The PATH to the log directory.')             { |v| config[:logdir]     = v }

  parser.on('-l',         '--list',   TrueClass, 'List the inventory.')       { |v| config[:runner] = self.method(:list) }
  #parser.on('-e COMMAND', '--exec',   String,    'Execute commands and quit.'){ |v| config[:runner] = self.method(:exec); config[:command] << v }

  config[:name]      = parser.parse!(args).first
  config[:inventory] << DEFAULT_INVENTORY if config[:inventory].empty?
  config[:template]  << DEFAULT_TEMPLATE  if config[:template].empty?

  Xssh.configure do
    source   *config[:inventory].map{ |e| File.expand_path(e, ENV['PWD']) }
    template *config[:template].map { |e| File.expand_path(e, ENV['PWD']) }
  end

  raise Xssh::Error.new("Invalid host : '#{config[:name]}'") if Xssh.list(**config.slice(:name)).empty?
  config[:runner].call(config)
rescue => e
  $stderr.puts e, '', parser
  exit 1
end

#tty(config) ⇒ Object 



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# File 'lib/xssh/cli.rb', line 23

def tty(config)
  info = Xssh.find(name: config[:name])
  puts "Trying #{info[:name]}...", "Escape character is '^]'."

  session, _ = exec(config.merge(patterns: info[:name], jobs: 1))
  session.interact!
end