Module: CmdTools::Commands::EmacsLaunch

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

Class Method Summary collapse

Class Method Details

.daemon_running? ⇒ Boolean

Returns:

  • (Boolean) 


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

def self.daemon_running?
  system "emacsclient -e '()' > #{File::NULL} 2>&1"
end

.emacsclient_open(files_str) ⇒ Object 



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# File 'lib/cmd_tools/commands/emacs_launch.rb', line 47

def self.emacsclient_open(files_str)
  spawn "emacsclient -n #{files_str}"
end

.is_gui_running? ⇒ Boolean

Returns:

  • (Boolean) 


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# File 'lib/cmd_tools/commands/emacs_launch.rb', line 43

def self.is_gui_running?
  ::CmdTools::Config.emacs_window_systems.include?(`emacsclient -e "(window-system)"`.strip)
end

.run(mode, *files) ⇒ Object

This method is created to provide ‘open -a Emacs.app’ command of Mac to Linux. Unfortunately, This method is not work satisfactory on Mac (but you have ‘open -a Emacs.app’). This method will

  • 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 a path to an emacs executable.



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# File 'lib/cmd_tools/commands/emacs_launch.rb', line 13

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

  files_str = files.flatten.join(' ')
  case mode
  when :gui
    if is_gui_running?
      emacsclient_open(files_str)
    else
      spawn "emacsclient -c -n #{files_str}"
    end
  when :cui
    Process.waitpid(emacsclient_open(files_str)) # To retain a file even if a terminal, which the file was opened, have closed.
    exec "emacsclient -t #{files_str}"
  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/commands/emacs_launch.rb', line 33

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