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Contents
module Facter::Util::Partitions
module Linux
# Only Linux 2.6+ kernels support sysfs which is required to easily get device details
SYSFS_BLOCK_DIRECTORY = '/sys/block/'
DEVDISK_BY_UUID_DIRECTORY = '/dev/disk/by-uuid/'
def self.list
if File.exist?(SYSFS_BLOCK_DIRECTORY)
devices = Dir.entries(SYSFS_BLOCK_DIRECTORY).select { |d| File.exist?( SYSFS_BLOCK_DIRECTORY + d + "/device" ) }
if devices.empty?
[]
else
devices.collect do |device|
Dir.glob( SYSFS_BLOCK_DIRECTORY + device + "/#{device}*" ).collect do |d|
File.basename(d)
end
end.flatten
end
else
[]
end
end
def self.uuid(partition)
uuid = nil
if File.exist?(DEVDISK_BY_UUID_DIRECTORY)
Dir.entries(DEVDISK_BY_UUID_DIRECTORY).each do |file|
qualified_file = File.join(DEVDISK_BY_UUID_DIRECTORY, file)
#A uuid is 16 octets long (RFC4122) which is 32hex chars + 4 '-'s
next unless file.length == 36
next unless File.symlink?(qualified_file)
next unless File.readlink(qualified_file).match(%r[(?:\.\./\.\./|/dev/)#{partition}$])
uuid = file
end
end
uuid
end
def self.size(partition)
read_size(partition)
end
def self.mount(partition)
if Facter::Core::Execution.which('mount')
Facter::Core::Execution.exec('mount').scan(/\/dev\/#{partition}\son\s(\S+)/).flatten.first
end
end
def self.filesystem(partition)
if Facter::Core::Execution.which('blkid')
Facter::Core::Execution.exec("blkid #{File.join('/dev', partition)}").scan(/TYPE="([^"]*)"/).flatten.first
end
end
private
def self.read_size(partition)
if device = partition.match(/(\D+)/)[1] and File.readable?(File.join(SYSFS_BLOCK_DIRECTORY, device, partition, 'size'))
File.read(File.join(SYSFS_BLOCK_DIRECTORY, device, partition, 'size')).chomp
end
end
end
end
Version data entries
8 entries across 8 versions & 1 rubygems