module Sys
  class Platform
    # The CPU architecture
    ARCH = File::ALT_SEPARATOR ? Uname.architecture.to_sym : Uname.machine.to_sym

    # Returns a basic OS family, either :windows or :unix
    OS = File::ALT_SEPARATOR ? :windows : :unix

    # Returns the OS type, :macosx, :linux, :mingw32, etc
    IMPL = case Uname.sysname
      when /darwin|mac/i
        :macosx
      when /mingw|windows/i
        require 'rbconfig'
        RbConfig::CONFIG['host_os'].split('_').first[/[a-z]+/i].downcase.to_sym
      when /linux/i
        :linux
      when /sunos|solaris/i
        :solaris
      when /bsd/i
        :bsd
    end

    # Returns whether or not you're on a Windows OS
    def self.windows?
      Uname.sysname =~ /microsoft/i ? true : false
    end

    # Returns whether or not you're on a Unixy (non-Windows) OS
    def self.unix?
      Uname.sysname !~ /microsoft/i ? true : false
    end

    # Returns whether or not you're on a mac, i.e. OSX
    def self.mac?
      Uname.sysname =~ /darwin|mac/i ? true : false
    end

    # Returns whether or not you're on Linux
    def self.linux?
      Uname.sysname =~ /linux/i ? true : false
    end

    # Returns whether or not you're on Solaris
    def self.solaris?
      Uname.sysname =~ /sunos|solaris/i ? true : false
    end

    # Returns whether or not you're on any BSD platform
    def self.bsd?
      Uname.sysname =~ /bsd/i ? true : false
    end
  end
end