diff options
Diffstat (limited to 'lib/chef/chef_fs/file_system/cookbook_file.rb')
-rw-r--r-- | lib/chef/chef_fs/file_system/cookbook_file.rb | 78 |
1 files changed, 78 insertions, 0 deletions
diff --git a/lib/chef/chef_fs/file_system/cookbook_file.rb b/lib/chef/chef_fs/file_system/cookbook_file.rb new file mode 100644 index 0000000000..baa71f5d9e --- /dev/null +++ b/lib/chef/chef_fs/file_system/cookbook_file.rb @@ -0,0 +1,78 @@ +# +# 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 'digest/md5' + +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 + old_sign_on_redirect = rest.sign_on_redirect + rest.sign_on_redirect = false + begin + rest.get_rest(file[:url]) + ensure + rest.sign_on_redirect = old_sign_on_redirect + 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) + begin + Digest::MD5.hexdigest(value) + rescue Chef::ChefFS::FileSystem::NotFoundError + nil + end + end + end + end + end +end |