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 # A slugified version of the string, suitable for inclusion in URLs and # domain names. Rules: # # * Lowercased # * Anything not matching [a-z0-9-] is replaced with a - # * Maximum length is 63 bytes # * First/Last Character is not a hyphen def slugify(str) return str.downcase .gsub(/[^a-z0-9]/, '-')[0..62] .gsub(/(\A-+|-+\z)/, '') end # Converts newlines into HTML line break elements def nlbr(str) ActionView::Base.full_sanitizer.sanitize(str, tags: []).gsub(/\r?\n/, '<br>').html_safe end def remove_line_breaks(str) str.gsub(/\r?\n/, '') 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 def random_string Random.rand(Float::MAX.to_i).to_s(36) end # See: http://stackoverflow.com/questions/2108727/which-in-ruby-checking-if-program-exists-in-path-from-ruby # Cross-platform way of finding an executable in the $PATH. # # which('ruby') #=> /usr/bin/ruby def which(cmd, env = ENV) exts = env['PATHEXT'] ? env['PATHEXT'].split(';') : [''] env['PATH'].split(File::PATH_SEPARATOR).each do |path| exts.each do |ext| exe = File.join(path, "#{cmd}#{ext}") return exe if File.executable?(exe) && !File.directory?(exe) end end nil end def bytes_to_megabytes(bytes) bytes.to_f / Numeric::MEGABYTE end # Used in EE # Accepts either an Array or a String and returns an array def ensure_array_from_string(string_or_array) return string_or_array if string_or_array.is_a?(Array) string_or_array.split(',').map(&:strip) end end end