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Contents
# frozen_string_literal: true
module Facter
module Resolvers
module Linux
class Disk < BaseResolver
@log = Facter::Log.new(self)
@semaphore = Mutex.new
@fact_list ||= {}
DIR = '/sys/block'
FILE_PATHS = { model: 'device/model', size: 'size', vendor: 'device/vendor' }.freeze
class << self
private
def post_resolve(fact_name)
@fact_list.fetch(fact_name) { read_facts(fact_name) }
end
def read_facts(fact_name)
build_disks_hash
FILE_PATHS.each do |key, file|
@fact_list[:disks].each do |disk, value|
file_path = File.join(DIR, disk, file)
result = Util::FileHelper.safe_read(file_path).strip
next if result.empty?
# Linux always considers sectors to be 512 bytes long independently of the devices real block size.
value[key] = file =~ /size/ ? construct_size(value, result) : result
end
end
@fact_list[:disks] = nil if @fact_list[:disks].empty?
@fact_list[fact_name]
end
def build_disks_hash
@fact_list[:disks] = {}
directories = Dir.entries(DIR).reject { |dir| dir =~ /\.+/ }
directories.each { |disk| @fact_list[:disks].merge!(disk => {}) }
@fact_list[:disks].select! { |disk, _fact| File.readable?(File.join(DIR, disk, 'device')) }
end
def construct_size(facts, value)
value = value.to_i * 512
facts[:size_bytes] = value
facts[:size] = Facter::FactsUtils::UnitConverter.bytes_to_human_readable(value)
end
end
end
end
end
end
Version data entries
17 entries across 17 versions & 1 rubygems