1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
|
#
# Author:: John Keiser (<jkeiser@opscode.com>)
# Copyright:: Copyright (c) 2012 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/chef_fs/file_system/base_fs_object'
require 'chef/http/simple'
require 'openssl'
class Chef
module ChefFS
module FileSystem
class CookbookFile < BaseFSObject
def initialize(name, parent, file)
super(name, parent)
@file = file
end
attr_reader :file
def checksum
file[:checksum]
end
def read
begin
tmpfile = rest.streaming_request(file[:url])
rescue Timeout::Error => e
raise Chef::ChefFS::FileSystem::OperationFailedError.new(:read, self, e, "Timeout reading #{file[:url]}: #{e}")
rescue Net::HTTPServerException => e
raise Chef::ChefFS::FileSystem::OperationFailedError.new(:read, self, e, "#{e.message} retrieving #{file[:url]}")
end
begin
tmpfile.open
tmpfile.read
ensure
tmpfile.close!
end
end
def rest
parent.rest
end
def compare_to(other)
other_value = nil
if other.respond_to?(:checksum)
other_checksum = other.checksum
else
begin
other_value = other.read
rescue Chef::ChefFS::FileSystem::NotFoundError
return [ false, nil, :none ]
end
other_checksum = calc_checksum(other_value)
end
[ checksum == other_checksum, nil, other_value ]
end
private
def calc_checksum(value)
OpenSSL::Digest::MD5.hexdigest(value)
end
end
end
end
end
|
