Module: CmdTools::Command::EmacsLaunch

Extended by:
RubyPatch::AutoLoad
Defined in:
lib/cmd_tools/command/emacs_launch.rb

Class Method Summary collapse

Class Method Details

.daemon_running? ⇒ Boolean

Returns:

  • (Boolean) 


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# File 'lib/cmd_tools/command/emacs_launch.rb', line 35

def self.daemon_running?
  system "emacsclient -e '()' > /dev/null 2>&1"
end

.number_of_frames ⇒ Object 



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# File 'lib/cmd_tools/command/emacs_launch.rb', line 39

def self.number_of_frames
  `emacsclient -e "(length (visible-frame-list))"`.to_i
end

.run(mode, *files) ⇒ Object

Open files by mode (:gui/:cui) mode. Launch emacs daemon if necessary. Create new frame if necessary. You can edit ~/.config/cmd_tools/config.yaml to specify an emacs executable. For example, if you are a Mac user who uses MacPorts, following modification will be useful.

- :emacs: emacs
+ :emacs: /Applications/MacPorts/Emacs.app/Contents/MacOS/Emacs



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# File 'lib/cmd_tools/command/emacs_launch.rb', line 12

def self.run(mode, *files)
  system "#{::CmdTools::Config.emacs} --daemon" unless self.daemon_running?

  files = files.flatten.join(' ')
  case mode
  when :gui
    if self.number_of_frames <= 1 # emacs daemon has one (invisible) frame.
      exec "emacsclient -c -n #{files}"
    else
      exec "emacsclient -n #{files}"
    end
  when :cui
    exec "emacsclient -t #{files}"
  else
    raise ArgumentError, "Expected :gui or :cui, but got #{mode}."
  end
end

.stop ⇒ Object

Stop emacs daemon.



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# File 'lib/cmd_tools/command/emacs_launch.rb', line 31

def self.stop
  exec "emacsclient -e '(kill-emacs)'"
end