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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/command_line'
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, options = {})
super(name, parent)
@exists = options[:exists]
# If the name is apache2-1.0.0 and versioned_cookbooks is on, we know
# the actual cookbook_name and version.
if root.versioned_cookbooks
if name =~ VALID_VERSIONED_COOKBOOK_NAME
@cookbook_name = $1
@version = $2
else
@exists = false
end
else
@cookbook_name = name
@version = root.cookbook_version # nil unless --cookbook-version specified in download/diff
end
end
attr_reader :cookbook_name, :version
COOKBOOK_SEGMENT_INFO = {
:attributes => { :ruby_only => true },
:definitions => { :ruby_only => true },
:recipes => { :ruby_only => true },
:libraries => { :ruby_only => true },
:templates => { :recursive => true },
:files => { :recursive => true },
:resources => { :ruby_only => true, :recursive => true },
:providers => { :ruby_only => true, :recursive => true },
:root_files => { }
}
# See Erchef code
# https://github.com/opscode/chef_objects/blob/968a63344d38fd507f6ace05f73d53e9cd7fb043/src/chef_regex.erl#L94
VALID_VERSIONED_COOKBOOK_NAME = /^([.a-zA-Z0-9_-]+)-(\d+\.\d+\.\d+)$/
def add_child(child)
@children << child
end
def api_path
"#{parent.api_path}/#{cookbook_name}/#{version || "_latest"}"
end
def make_child_entry(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
children.select { |child| child.name == name }.first
rescue Chef::ChefFS::FileSystem::NotFoundError
nil
end
end
def can_have_child?(name, is_dir)
# A cookbook's root may not have directories unless they are segment directories
return name != 'root_files' && COOKBOOK_SEGMENT_INFO.keys.include?(name.to_sym) if is_dir
return 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
@children = @children.sort_by { |c| c.name }
end
@children
end
def dir?
exists?
end
def delete(recurse)
if recurse
begin
rest.delete(api_path)
rescue Timeout::Error => e
raise Chef::ChefFS::FileSystem::OperationFailedError.new(:delete, self, e), "Timeout deleting: #{e}"
rescue Net::HTTPServerException
if $!.response.code == "404"
raise Chef::ChefFS::FileSystem::NotFoundError.new(self, $!)
else
raise Chef::ChefFS::FileSystem::OperationFailedError.new(:delete, self, e), "HTTP error deleting: #{e}"
end
end
else
raise NotFoundError.new(self) if !exists?
raise MustDeleteRecursivelyError.new(self), "#{path_for_printing} must be deleted recursively"
end
end
# In versioned cookbook mode, actually check if the version exists
# Probably want to cache this.
def exists?
if @exists.nil?
@exists = parent.children.any? { |child| child.name == name }
end
@exists
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).each do |type, old_entry, new_entry|
if [ :directory_to_file, :file_to_directory, :deleted, :added, :modified ].include?(type)
are_same = false
end
end
[ are_same, nil, nil ]
end
def copy_from(other, options = {})
parent.upload_cookbook_from(other, options)
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(self, @could_not_get_chef_object)
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 ||= Chef::CookbookVersion.json_create(root.get_json(api_path))
ensure
Chef::Config[:http_retry_count] = old_retry_count
end
rescue Timeout::Error => e
raise Chef::ChefFS::FileSystem::OperationFailedError.new(:read, self, e), "Timeout reading: #{e}"
rescue Net::HTTPServerException => e
if e.response.code == "404"
@could_not_get_chef_object = e
raise Chef::ChefFS::FileSystem::NotFoundError.new(self, @could_not_get_chef_object)
else
raise Chef::ChefFS::FileSystem::OperationFailedError.new(:read, self, e), "HTTP error reading: #{e}"
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 => e
if e.response.code == "500"
@could_not_get_chef_object = e
raise Chef::ChefFS::FileSystem::NotFoundError.new(self, @could_not_get_chef_object)
else
raise Chef::ChefFS::FileSystem::OperationFailedError.new(:read, self, e), "HTTP error reading: #{e}"
end
end
end
end
end
end
end
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