Class: Hem::Lib::Vm::Command

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

Constant Summary collapse

@@vm_inspector = 
Inspector.new

Class Attribute Summary collapse

Instance Attribute Summary collapse

Instance Method Summary collapse

Constructor Details

#initialize(command, opts = {}) ⇒ Command

Returns a new instance of Command.



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# File 'lib/hem/lib/vm/command.rb', line 12

def initialize command, opts = {}
  @command = command
  @opts = {
      :auto_echo => false,
      :psuedo_tty => false,
      :pwd => opts[:pwd] || @@vm_inspector.project_mount_path,
      :append => ''
  }.merge(opts)
end

Class Attribute Details

.vm_inspector ⇒ Object

Returns the value of attribute vm_inspector.



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# File 'lib/hem/lib/vm/command.rb', line 6

def vm_inspector
  @vm_inspector
end

Instance Attribute Details

#command ⇒ Object

Returns the value of attribute command.



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# File 'lib/hem/lib/vm/command.rb', line 10

def command
  @command
end

#opts ⇒ Object

Returns the value of attribute opts.



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# File 'lib/hem/lib/vm/command.rb', line 10

def opts
  @opts
end

Instance Method Details

#<(cmd) ⇒ Object 



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# File 'lib/hem/lib/vm/command.rb', line 42

def < cmd
  pipe cmd, :on => :vm
end

#<<(cmd) ⇒ Object 



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# File 'lib/hem/lib/vm/command.rb', line 38

def << cmd
  pipe cmd, :on => :host
end

#pipe(cmd, pipe_opts = {}) ⇒ Object 



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# File 'lib/hem/lib/vm/command.rb', line 22

def pipe cmd, pipe_opts = {}
  pipe_opts = pipe_opts.merge({ :on => :vm })
  cmd = "echo #{cmd.shellescape}" if @opts[:auto_echo]

  case pipe_opts[:on]
    when :vm
      @pipe_in_vm = cmd
    when :host
      @pipe = cmd
    else
      raise "Unknown pipe source: #{pipe_opts[:on]}"
  end
  @opts[:psuedo_tty] = false
  return self
end

#run ⇒ Object 



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# File 'lib/hem/lib/vm/command.rb', line 46

def run
  return if @command.nil?
  Hem::Helper.shell to_s, @opts
end

#to_s ⇒ Object

TODO Speed up Vagrant SSH connections May need to be disabled for windows (mm_send_fd: UsePrivilegeSeparation=yes not supported) gist.github.com/jedi4ever/5657094



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# File 'lib/hem/lib/vm/command.rb', line 55

def to_s
  require 'tempfile'
  config = ::Tempfile.new 'hem_ssh_config'
  config.write @@vm_inspector.ssh_config
  config.close

  psuedo_tty = opts[:psuedo_tty] ? '-t' : ''

  ssh_command = [
      'ssh',
      "-F #{config.path.shellescape}",
      psuedo_tty,
      'default'
  ].join(' ')

  pwd_set_command = " -- \"cd #{@opts[:pwd].shellescape}; exec /bin/bash"

  vm_command = [
      @pipe_in_vm.nil? ? nil : @pipe_in_vm.gsub(/(\\+)/, '\\\\\1'),
      @command
  ].compact.join(' | ')

  command = [
      ssh_command + pwd_set_command,
      vm_command.empty? ? nil : vm_command.shellescape
  ].compact.join(' -c ') + "#{@opts[:append].shellescape}\""

  [
      @pipe,
      command
  ].compact.join(' | ')
end

#to_str ⇒ Object 



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# File 'lib/hem/lib/vm/command.rb', line 88

def to_str
  to_s
end