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#
# Created by Luke Kanies on 2007-10-16.
# Copyright (c) 2007. All rights reserved.
require 'puppet'
require 'puppet/indirector'
require 'puppet/file_serving'
require 'puppet/file_serving/base'
require 'puppet/util/checksums'
require 'puppet/file_serving/indirection_hooks'
# A class that handles retrieving file metadata.
class Puppet::FileServing::Metadata < Puppet::FileServing::Base
include Puppet::Util::Checksums
extend Puppet::Indirector
indirects :file_metadata, :extend => Puppet::FileServing::IndirectionHooks
attr_reader :path, :owner, :group, :mode, :checksum_type, :checksum, :ftype, :destination
PARAM_ORDER = [:mode, :ftype, :owner, :group]
def attributes_with_tabs
raise(ArgumentError, "Cannot manage files of type #{ftype}") unless ['file','directory','link'].include? ftype
desc = []
PARAM_ORDER.each { |check|
check = :ftype if check == :type
desc << send(check)
}
desc << checksum
desc << @destination rescue nil if ftype == 'link'
desc.join("\t")
end
def checksum_type=(type)
raise(ArgumentError, "Unsupported checksum type #{type}") unless respond_to?("#{type}_file")
@checksum_type = type
end
# Retrieve the attributes for this file, relative to a base directory.
# Note that File.stat raises Errno::ENOENT if the file is absent and this
# method does not catch that exception.
def collect
real_path = full_path()
stat = stat()
@owner = stat.uid
@group = stat.gid
@ftype = stat.ftype
# We have to mask the mode, yay.
@mode = stat.mode & 007777
case stat.ftype
when "file"
@checksum = ("{#{@checksum_type}}") + send("#{@checksum_type}_file", real_path).to_s
when "directory" # Always just timestamp the directory.
@checksum_type = "ctime"
@checksum = ("{#{@checksum_type}}") + send("#{@checksum_type}_file", path).to_s
when "link"
@destination = File.readlink(real_path)
@checksum = ("{#{@checksum_type}}") + send("#{@checksum_type}_file", real_path).to_s rescue nil
else
raise ArgumentError, "Cannot manage files of type #{stat.ftype}"
end
end
def initialize(path,data={})
@owner = data.delete('owner')
@group = data.delete('group')
@mode = data.delete('mode')
if checksum = data.delete('checksum')
@checksum_type = checksum['type']
@checksum = checksum['value']
end
@checksum_type ||= "md5"
@ftype = data.delete('type')
@destination = data.delete('destination')
super(path,data)
end
PSON.register_document_type('FileMetadata',self)
def to_pson_data_hash
{
'document_type' => 'FileMetadata',
'data' => super['data'].update(
{
'owner' => owner,
'group' => group,
'mode' => mode,
'checksum' => {
'type' => checksum_type,
'value' => checksum
},
'type' => ftype,
'destination' => destination,
}),
'metadata' => {
'api_version' => 1
}
}
end
def to_pson(*args)
to_pson_data_hash.to_pson(*args)
end
def self.from_pson(data)
new(data.delete('path'), data)
end
end
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