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#
# Author:: Seth Chisamore (<schisamo@opscode.com>)
# Copyright:: Copyright 2011 Opscode, Inc.
# License:: Apache License, Version 2.0
#
# Licensed under the Apache License, Version 2.0 (the "License");
# you may not use this file except in compliance with the License.
# You may obtain a copy of the License at
#
# http://www.apache.org/licenses/LICENSE-2.0
#
# Unless required by applicable law or agreed to in writing, software
# distributed under the License is distributed on an "AS IS" BASIS,
# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
# See the License for the specific language governing permissions and
# limitations under the License.
#
require 'chef/win32/file'
class Chef
module ReservedNames::Win32
class File
# Objects of class Chef::ReservedNames::Win32::File::Stat encapsulate common status
# information for Chef::ReservedNames::Win32::File objects. The information
# is recorded at the moment the Chef::ReservedNames::Win32::File::Stat object is
# created; changes made to the file after that point will not be reflected.
class Info
include Chef::ReservedNames::Win32::API::File
include Chef::ReservedNames::Win32::API
# http://msdn.microsoft.com/en-us/library/windows/desktop/aa363788(v=vs.85).aspx
def initialize(file_name)
raise Errno::ENOENT, file_name unless ::File.exist?(file_name)
@file_info = retrieve_file_info(file_name)
end
def volume_serial_number
@file_info[:dw_volume_serial_number]
end
def index
make_uint64(@file_info[:n_file_index_low], @file_info[:n_file_index_high])
end
def last_access_time
parse_time(@file_info[:ft_last_access_time])
end
def creation_time
parse_time(@file_info[:ft_creation_time])
end
def last_write_time
parse_time(@file_info[:ft_last_write_time])
end
def links
@file_info[:n_number_of_links]
end
def size
make_uint64(@file_info[:n_file_size_low], @file_info[:n_file_size_high])
end
##############################
# ::File::Stat compat
alias :atime :last_access_time
alias :mtime :last_write_time
alias :ctime :creation_time
# we're faking it here, but this is in the spirit of ino in *nix
#
# from MSDN:
#
# "The identifier (low and high parts) and the volume serial number
# uniquely identify a file on a single computer. To determine whether
# two open handles represent the same file, combine the identifier
# and the volume serial number for each file and compare them.""
#
def ino
volume_serial_number + index
end
##############################
# given a +Chef::ReservedNames::Win32::API::File::FILETIME+ structure convert into a
# Ruby +Time+ object.
#
def parse_time(file_time_struct)
wtime_to_time(make_uint64(file_time_struct[:dw_low_date_time],
file_time_struct[:dw_high_date_time]))
end
end
end
end
end
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