Contents

module LinuxStat
	module OS
		class << self
			def os_release
				# Cached ; as changing the value in runtime is unexpected
				@@os_release ||= File.readable?('/etc/os-release') ? release('/etc/os-release') : {}
			end

			def lsb_release
				# Cached ; as changing the value in runtime is unexpected
				@@lsb_release ||= File.readable?('/etc/lsb-release') ? release('/etc/lsb-release') : {}
			end

			def uptime
				raise StatUnavailable, 'Cannot read /proc/uptime' unless uptime_readable?

				uptime = IO.read('/proc/uptime').to_f
				uptime_i = uptime.to_i

				h = uptime_i / 3600
				m = uptime_i % 3600 / 60
				s = uptime.%(3600).%(60).round(2)

				{
					hour: h,
					minute: m,
					second: s
				}
			end

			private
			def release(file)
				IO.readlines(file).reduce({}) { |h, x|
					x.strip!
					next h if x.empty?

					splitted = x.split(?=)

					key = splitted[0].to_s.strip
					value = splitted[1..-1].join(?=).to_s.strip

					dumped = value[0] == ?" && value[-1] == ?"
					h.merge!( key.to_sym => dumped ? value.undump : value )
				}
			end

			def uptime_readable?
				@@uptime_readable = File.readable?('/proc/uptime')
			end
		end
	end
end

Version data entries

2 entries across 2 versions & 1 rubygems

Version	Path
linux_stat-0.1.2	lib/linux_stat/os.rb
linux_stat-0.1.1	lib/linux_stat/os.rb