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Contents
# frozen_string_literal: true
module Doing
# Request Yes/No answers on command line
module PromptYN
##
## Ask a yes or no question in the terminal
##
## @param question [String] The question
## to ask
## @param default_response [Boolean] default
## response if no input
##
## @return [Boolean] yes or no
##
def yn(question, default_response: false)
return @force_answer == :yes ? true : false unless @force_answer.nil?
$stdin.reopen('/dev/tty')
default = if default_response.is_a?(String)
default_response =~ /y/i ? true : false
else
default_response
end
# if global --default is set, answer default
return default if @default_answer
# if this isn't an interactive shell, answer default
return default unless $stdout.isatty
# clear the buffer
if ARGV&.length
ARGV.length.times do
ARGV.shift
end
end
system 'stty cbreak'
cw = white
cbw = boldwhite
cbg = boldgreen
cd = Color.default
options = unless default.nil?
"#{cw}[#{default ? "#{cbg}Y#{cw}/#{cbw}n" : "#{cbw}y#{cw}/#{cbg}N"}#{cw}]#{cd}"
else
"#{cw}[#{cbw}y#{cw}/#{cbw}n#{cw}]#{cd}"
end
$stdout.syswrite "#{cbw}#{question.sub(/\?$/, '')} #{options}#{cbw}?#{cd} "
res = $stdin.sysread 1
puts
system 'stty cooked'
res.chomp!
res.downcase!
return default if res.empty?
res =~ /y/i ? true : false
end
end
end
Version data entries
41 entries across 41 versions & 1 rubygems