Contents

module BBLib
  module System
    SPECIAL_PROGRAMS = ['pry', 'irb.cmd', 'irb'].freeze

    # A string representation of the command line that evoked this ruby instance (platform agnostic)
    def self.cmd_line(*args, include_args: true, include_ruby: true, prefix: nil, suffix: nil)
      args = ARGV if args.empty?
      include_ruby = false if special_program?
      "#{prefix}#{include_ruby ? Command.quote(Gem.ruby) : nil} #{Command.quote($PROGRAM_NAME)}" \
      " #{include_args ? args.map { |a| Command.quote(a) }.join(' ') : nil}#{suffix}"
        .strip
    end

    # EXPERIMENTAL: Reloads the original file that was called
    # Use at your own risk, this could cause some weird issues
    def self.reload(include_args: true)
      return false if special_program?
      load cmd_line(*args, include_ruby: false, include_args: include_args)
    end

    # EXPERIMENTAL: Restart the ruby process that is currently running.
    # Use at your own risk
    def self.restart(*args, include_args: true, stay_alive: 1)
      exit(0)
    rescue SystemExit
      opts = BBLib::OS.windows? ? { new_pgroup: true } : { pgroup: true }
      pid = spawn(cmd_line(*args, include_args: include_args, prefix: (BBLib::OS.windows? ? 'start ' : nil)), **opts)
      Process.detach(pid)
      sleep(stay_alive)
      exit(0) if special_program?
    end

    # Detects whether a console like irb or pry was used to launch this process
    def self.special_program?
      SPECIAL_PROGRAMS.include?($PROGRAM_NAME)
    end
  end

end

Version data entries

5 entries across 5 versions & 1 rubygems

Version	Path
bblib-2.0.5	lib/bblib/system/system.rb
bblib-2.0.4	lib/bblib/system/system.rb
bblib-2.0.3	lib/bblib/system/system.rb
bblib-2.0.1	lib/bblib/system/system.rb
bblib-2.0.0	lib/bblib/system/system.rb