Method: Commander::UI.ask_editor

Defined in:
lib/commander/user_interaction.rb

.ask_editor(input = nil, preferred_editor = nil) ⇒ Object

Prompt an editor for input. Optionally supply initial input which is written to the editor.

preferred_editor can be hinted.

Examples

ask_editor                # => prompts EDITOR with no input
ask_editor('foo')         # => prompts EDITOR with default text of 'foo'
ask_editor('foo', 'mate -w')  # => prompts TextMate with default text of 'foo'



256
257
258
259
260
261
262
263
264
265
266
267
 
# File 'lib/commander/user_interaction.rb', line 256

def ask_editor input = nil, preferred_editor = nil
  editor = available_editor preferred_editor
  program = Commander::Runner.instance.program(:name).downcase rescue 'commander'
  tmpfile = Tempfile.new program
  begin
    tmpfile.write input if input
    tmpfile.close
    system("#{editor} #{tmpfile.path.shellescape}") ? IO.read(tmpfile.path) : nil
  ensure
    tmpfile.unlink
  end
end