Class: IRB::ExtendCommand::Edit

Inherits:
Nop show all
Defined in:
lib/irb/cmd/edit.rb

Instance Attribute Summary

Attributes inherited from Nop

#irb_context

Class Method Summary collapse

Instance Method Summary collapse

Methods inherited from Nop

category, description, execute, #initialize, #irb

Constructor Details

This class inherits a constructor from IRB::ExtendCommand::Nop

Class Method Details

.transform_args(args) ⇒ Object 



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# File 'lib/irb/cmd/edit.rb', line 13

def transform_args(args)
  # Return a string literal as is for backward compatibility
  if args.nil? || args.empty? || string_literal?(args)
    args
  else # Otherwise, consider the input as a String for convenience
    args.strip.dump
  end
end

Instance Method Details

#execute(*args) ⇒ Object 



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# File 'lib/irb/cmd/edit.rb', line 30

def execute(*args)
  path = args.first

  if path.nil? && (irb_path = @irb_context.irb_path)
    path = irb_path
  end

  if !File.exist?(path)
    require_relative "show_source"

    source =
      begin
        ShowSource.find_source(path, @irb_context)
      rescue NameError
        # if user enters a path that doesn't exist, it'll cause NameError when passed here because find_source would try to evaluate it as well
        # in this case, we should just ignore the error
      end

    if source && File.exist?(source.file)
      path = source.file
    else
      puts "Can not find file: #{path}"
      return
    end
  end

  if editor = ENV['EDITOR']
    puts "command: '#{editor}'"
    puts "   path: #{path}"
    system(*Shellwords.split(editor), path)
  else
    puts "Can not find editor setting: ENV['EDITOR']"
  end
end