module Gitlab
  module Utils
    extend self

    # Run system command without outputting to stdout.
    #
    # @param  cmd [Array<String>]
    # @return [Boolean]
    def system_silent(cmd)
      Popen.popen(cmd).last.zero?
    end

    def force_utf8(str)
      str.force_encoding(Encoding::UTF_8)
    end

    def to_boolean(value)
      return value if [true, false].include?(value)
      return true if value =~ /^(true|t|yes|y|1|on)$/i
      return false if value =~ /^(false|f|no|n|0|off)$/i

      nil
    end

    def boolean_to_yes_no(bool)
      if bool
        'Yes'
      else
        'No'
      end
    end
  end
end