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#
# 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/rest_list_dir'
require 'chef/chef_fs/file_system/cookbook_subdir'
require 'chef/chef_fs/file_system/cookbook_file'
require 'chef/chef_fs/file_system/not_found_error'
require 'chef/cookbook_version'
require 'chef/cookbook_uploader'
class Chef
module ChefFS
module FileSystem
class CookbookDir < BaseFSDir
def initialize(name, parent, versions = nil)
super(name, parent)
@versions = versions
end
attr_reader :versions
COOKBOOK_SEGMENT_INFO = {
:attributes => { :ruby_only => true },
:definitions => { :ruby_only => true },
:recipes => { :ruby_only => true },
:libraries => { :ruby_only => true },
:templates => { :recursive => true },
:files => { :recursive => true },
:resources => { :ruby_only => true, :recursive => true },
:providers => { :ruby_only => true, :recursive => true },
:root_files => { }
}
def add_child(child)
@children << child
end
def api_path
"#{parent.api_path}/#{name}/_latest"
end
def child(name)
# Since we're ignoring the rules and doing a network request here,
# we need to make sure we don't rethrow the exception. (child(name)
# is not supposed to fail.)
begin
result = children.select { |child| child.name == name }.first
return result if result
rescue Chef::ChefFS::FileSystem::NotFoundError
end
return NonexistentFSObject.new(name, self)
end
def can_have_child?(name, is_dir)
# A cookbook's root may not have directories unless they are segment directories
if is_dir
return name != 'root_files' &&
COOKBOOK_SEGMENT_INFO.keys.any? { |segment| segment.to_s == name }
end
true
end
def children
if @children.nil?
@children = []
manifest = chef_object.manifest
COOKBOOK_SEGMENT_INFO.each do |segment, segment_info|
next unless manifest.has_key?(segment)
# Go through each file in the manifest for the segment, and
# add cookbook subdirs and files for it.
manifest[segment].each do |segment_file|
parts = segment_file[:path].split('/')
# Get or create the path to the file
container = self
parts[0,parts.length-1].each do |part|
old_container = container
container = old_container.children.select { |child| part == child.name }.first
if !container
container = CookbookSubdir.new(part, old_container, segment_info[:ruby_only], segment_info[:recursive])
old_container.add_child(container)
end
end
# Create the file itself
container.add_child(CookbookFile.new(parts[parts.length-1], container, segment_file))
end
end
end
@children
end
def dir?
exists?
end
def read
# This will only be called if dir? is false, which means exists? is false.
raise Chef::ChefFS::FileSystem::NotFoundError, path_for_printing
end
def exists?
if !@versions
child = parent.children.select { |child| child.name == name }.first
@versions = child.versions if child
end
!!@versions
end
def compare_to(other)
if !other.dir?
return [ !exists?, nil, nil ]
end
are_same = true
Chef::ChefFS::CommandLine::diff_entries(self, other, nil, :name_only) do
are_same = false
end
[ are_same, nil, nil ]
end
def copy_from(other)
parent.upload_cookbook_from(other)
end
def rest
parent.rest
end
def chef_object
# We cheat and cache here, because it seems like a good idea to keep
# the cookbook view consistent with the directory structure.
return @chef_object if @chef_object
# The negative (not found) response is cached
if @could_not_get_chef_object
raise Chef::ChefFS::FileSystem::NotFoundError.new(@could_not_get_chef_object), "#{path_for_printing} not found"
end
begin
# We want to fail fast, for now, because of the 500 issue :/
# This will make things worse for parallelism, a little, because
# Chef::Config is global and this could affect other requests while
# this request is going on. (We're not parallel yet, but we will be.)
# Chef bug http://tickets.opscode.com/browse/CHEF-3066
old_retry_count = Chef::Config[:http_retry_count]
begin
Chef::Config[:http_retry_count] = 0
@chef_object ||= rest.get_rest(api_path)
ensure
Chef::Config[:http_retry_count] = old_retry_count
end
rescue Net::HTTPServerException
if $!.response.code == "404"
@could_not_get_chef_object = $!
raise Chef::ChefFS::FileSystem::NotFoundError.new(@could_not_get_chef_object), "#{path_for_printing} not found"
else
raise
end
# Chef bug http://tickets.opscode.com/browse/CHEF-3066 ... instead of 404 we get 500 right now.
# Remove this when that bug is fixed.
rescue Net::HTTPFatalError
if $!.response.code == "500"
@could_not_get_chef_object = $!
raise Chef::ChefFS::FileSystem::NotFoundError.new(@could_not_get_chef_object), "#{path_for_printing} not found"
else
raise
end
end
end
end
end
end
end
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