Module: Hawknee::Helpers

Extended by:
Helpers
Included in:
Helpers
Defined in:
lib/hawknee/helpers.rb

Defined Under Namespace

Classes: BadCommand, BadOption

Instance Method Summary collapse

Instance Method Details

#ask(what) ⇒ Object 



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# File 'lib/hawknee/helpers.rb', line 4

def ask(what)
	print what
	$stdin.gets.chomp.strip
end

#command_exists? ⇒ Boolean

Used to check if command user passed exists. If not, raises BadCommand, and shows appropriate note.

usage examples:

puts "Good" if command_exists? 'initialize'

Returns:

  • (Boolean) 


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# File 'lib/hawknee/helpers.rb', line 28

def command_exists?
	begin
		true if eval "Hawknee::Cli::Command::#{@command.capitalize}.new"
	rescue NameError
		raise BadCommand
	end
end

#confirm?(what = "Are you sure to continue?") ⇒ Boolean

Ask user if he wants to do something. If he passed ‘n’ it exits.

usage examples:

confirm?                         # Puts "Are you sure to continue? (y/n): ", and waits for input
confirm? "Delete?"               # Puts "Delete? (y/n): ", and waits for input
puts "Confirmed" if confirm?     # Puts "Confirmed" if user passed 'y'

Returns:

  • (Boolean) 


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# File 'lib/hawknee/helpers.rb', line 17

def confirm?(what = "Are you sure to continue?")
	print what + " (y/n): " # Hmmm... DRY? Yeah. DRY. We keep ourselves before writing (y/n): several times.
	if $stdin.gets.chomp.strip =~ /y/i then true else exit end # Exit if input != y
end