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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/cookbook_manifest"
require "chef_zero/data_store/memory_store"
require "chef_zero/data_store/data_already_exists_error"
require "chef_zero/data_store/data_not_found_error"
require "chef/chef_fs/file_pattern"
require "chef/chef_fs/file_system"
require "chef/chef_fs/file_system/not_found_error"
require "chef/chef_fs/file_system/memory/memory_root"
require "fileutils"
class Chef
module ChefFS
#
# Translation layer between chef-zero's DataStore (a place where it expects
# files to be stored) and ChefFS (the user's repository directory layout).
#
# chef-zero expects the data store to store files *its* way--for example, it
# expects get("nodes/blah") to return the JSON text for the blah node, and
# it expects get("cookbooks/blah/1.0.0") to return the JSON definition of
# the blah cookbook version 1.0.0.
#
# The repository is defined the way the *user* wants their layout. These
# two things are very similar in layout (for example, nodes are stored under
# the nodes/ directory and their filename is the name of the node).
#
# However, there are a few differences that make this more than just a raw
# file store:
#
# 1. Cookbooks are stored much differently.
# - chef-zero places JSON text with the checksums for the cookbook at
# /cookbooks/NAME/VERSION, and expects the JSON to contain URLs to the
# actual files, which are stored elsewhere.
# - The repository contains an actual directory with just the cookbook
# files and a metadata.rb containing a version #. There is no JSON to
# be found.
# - Further, if versioned_cookbooks is false, that directory is named
# /cookbooks/NAME and only one version exists. If versioned_cookbooks
# is true, the directory is named /cookbooks/NAME-VERSION.
# - Therefore, ChefFSDataStore calculates the cookbook JSON by looking at
# the files in the cookbook and checksumming them, and reading metadata.rb
# for the version and dependency information.
# - ChefFSDataStore also modifies the cookbook file URLs so that they point
# to /file_store/repo/<filename> (the path to the actual file under the
# repository root). For example, /file_store/repo/apache2/metadata.rb or
# /file_store/repo/cookbooks/apache2/recipes/default.rb).
#
# 2. Sandboxes don't exist in the repository.
# - ChefFSDataStore lets cookbooks be uploaded into a temporary memory
# storage, and when the cookbook is committed, copies the files onto the
# disk in the correct place (/cookbooks/apache2/recipes/default.rb).
#
# 3. Data bags:
# - The Chef server expects data bags in /data/BAG/ITEM
# - The repository stores data bags in /data_bags/BAG/ITEM
#
# 4. JSON filenames are generally NAME.json in the repository (e.g. /nodes/foo.json).
#
# 5. Org membership:
# chef-zero stores user membership in an org as a series of empty files.
# If an org has jkeiser and cdoherty as members, chef-zero expects these
# files to exist:
#
# - `users/jkeiser` (content: '{}')
# - `users/cdoherty` (content: '{}')
#
# ChefFS, on the other hand, stores user membership in an org as a single
# file, `members.json`, with content:
#
# ```json
# [
# { "user": { "username": "jkeiser" } },
# { "user": { "username": "cdoherty" } }
# ]
# ```
#
# To translate between the two, we need to intercept requests to `users`
# like so:
#
# - `list(users)` -> `get(/members.json)`
# - `get(users/NAME)` -> `get(/members.json)`, see if it's in there
# - `create(users/NAME)` -> `get(/members.json)`, add name, `set(/members.json)`
# - `delete(users/NAME)` -> `get(/members.json)`, remove name, `set(/members.json)`
#
# 6. Org invitations:
# chef-zero stores org membership invitations as a series of empty files.
# If an org has invited jkeiser and cdoherty (and they have not yet accepted
# the invite), chef-zero expects these files to exist:
#
# - `association_requests/jkeiser` (content: '{}')
# - `association_requests/cdoherty` (content: '{}')
#
# ChefFS, on the other hand, stores invitations as a single file,
# `invitations.json`, with content:
#
# ```json
# [
# { "id" => "jkeiser-chef", 'username' => 'jkeiser' },
# { "id" => "cdoherty-chef", 'username' => 'cdoherty' }
# ]
# ```
#
# To translate between the two, we need to intercept requests to `users`
# like so:
#
# - `list(association_requests)` -> `get(/invitations.json)`
# - `get(association_requests/NAME)` -> `get(/invitations.json)`, see if it's in there
# - `create(association_requests/NAME)` -> `get(/invitations.json)`, add name, `set(/invitations.json)`
# - `delete(association_requests/NAME)` -> `get(/invitations.json)`, remove name, `set(/invitations.json)`
#
class ChefFSDataStore
#
# Create a new ChefFSDataStore
#
# ==== Arguments
#
# [chef_fs]
# A +ChefFS::FileSystem+ object representing the repository root.
# Generally will be a +ChefFS::FileSystem::ChefRepositoryFileSystemRoot+
# object, created from +ChefFS::Config.local_fs+.
#
def initialize(chef_fs, chef_config=Chef::Config)
@chef_fs = chef_fs
@memory_store = ChefZero::DataStore::MemoryStore.new
@repo_mode = chef_config[:repo_mode]
end
def publish_description
"Reading and writing data to #{chef_fs.fs_description}"
end
attr_reader :chef_fs
attr_reader :repo_mode
def create_dir(path, name, *options)
if use_memory_store?(path)
@memory_store.create_dir(path, name, *options)
else
with_parent_dir(path + [name], *options) do |parent, name|
begin
parent.create_child(name, nil)
rescue Chef::ChefFS::FileSystem::AlreadyExistsError => e
raise ChefZero::DataStore::DataAlreadyExistsError.new(to_zero_path(e.entry), e)
end
end
end
end
#
# If you want to get the contents of /data/x/y from the server,
# you say chef_fs.child('data').child('x').child('y').read.
# It will make exactly one network request: GET /data/x/y
# And that will return 404 if it doesn't exist.
#
# ChefFS objects do not go to the network until you ask them for data.
# This means you can construct a /data/x/y ChefFS entry early.
#
# Alternative:
# chef_fs.child('data') could have done a GET /data preemptively,
# allowing it to know whether child('x') was valid (GET /data gives you
# a list of data bags). Then child('x') could have done a GET /data/x,
# allowing it to know whether child('y') (the item) existed. Finally,
# we would do the GET /data/x/y to read the contents. Three network
# requests instead of 1.
#
def create(path, name, data, *options)
if use_memory_store?(path)
@memory_store.create(path, name, data, *options)
elsif path[0] == "cookbooks" && path.length == 2
# Do nothing. The entry gets created when the cookbook is created.
# /policy_groups/GROUP/policies/NAME
elsif path[0] == "policy_groups" && path[2] == "policies"
# Just set or create the proper entry in the hash
update_json(to_chef_fs_path(path[0..1]), {}, *options) do |group|
if policies.has_key?(path[3])
raise ChefZero::DataStore::DataAlreadyExistsError.new(path, group)
end
group["policies"] ||= {}
group["policies"][path[3]] = { "revision_id" => Chef::JSONCompat.parse(data) }
group
end
# create [/organizations/ORG]/users/NAME (with content '{}')
# Manipulate the `members.json` file that contains a list of all users
elsif is_org? && path == [ "users" ]
update_json("members.json", [], *options) do |members|
# Format of each entry: { "user": { "username": "jkeiser" } }
if members.any? { |member| member["user"]["username"] == name }
raise ChefZero::DataStore::DataAlreadyExistsError.new(path, entry)
end
# Actually add the user
members << { "user" => { "username" => name } }
end
# create [/organizations/ORG]/association_requests/NAME (with content '{}')
# Manipulate the `invitations.json` file that contains a list of all users
elsif is_org? && path == [ "association_requests" ]
update_json("invitations.json", [], *options) do |invitations|
# Format of each entry: { "id" => "jkeiser-chef", 'username' => 'jkeiser' }
if invitations.any? { |member| member["username"] == name }
raise ChefZero::DataStore::DataAlreadyExistsError.new(path)
end
# Actually add the user (TODO insert org name??)
invitations << { "username" => name }
end
else
if !data.is_a?(String)
raise "set only works with strings"
end
with_parent_dir(path + [name], *options) do |parent, name|
begin
parent.create_child(name, data)
rescue Chef::ChefFS::FileSystem::AlreadyExistsError => e
raise ChefZero::DataStore::DataAlreadyExistsError.new(to_zero_path(e.entry), e)
end
end
end
end
def get(path, request=nil)
if use_memory_store?(path)
@memory_store.get(path)
elsif path[0] == "file_store" && path[1] == "repo"
entry = Chef::ChefFS::FileSystem.resolve_path(chef_fs, path[2..-1].join("/"))
begin
entry.read
rescue Chef::ChefFS::FileSystem::NotFoundError => e
raise ChefZero::DataStore::DataNotFoundError.new(to_zero_path(e.entry), e)
end
# /policy_groups/NAME/policies/POLICYNAME: return the revision of the given policy
elsif path[0] == "policy_groups" && path[2] == "policies" && path.length == 4
# Just set or create the proper entry in the hash
policy_group = get_json(to_chef_fs_path(path[0..1]), {})
if !policy_group["policies"] || !policy_group["policies"][path[3]]
raise ChefZero::DataStore::DataNotFoundError.new(path, entry)
end
# The policy group looks like:
# {
# "policies": {
# "x": { "revision_id": "10" }
# }
# }
Chef::JSONCompat.to_json_pretty(policy_group["policies"][path[3]]["revision_id"])
# GET [/organizations/ORG]/users/NAME -> /users/NAME
# Manipulates members.json
elsif is_org? && path[0] == "users" && path.length == 2
if get_json("members.json", []).any? { |member| member["user"]["username"] == path[1] }
"{}"
else
raise ChefZero::DataStore::DataNotFoundError.new(path)
end
# GET [/organizations/ORG]/association_requests/NAME -> /users/NAME
# Manipulates invites.json
elsif is_org? && path[0] == "association_requests" && path.length == 2
if get_json("invites.json", []).any? { |member| member["user"]["username"] == path[1] }
"{}"
else
raise ChefZero::DataStore::DataNotFoundError.new(path)
end
# GET /cookbooks/NAME/VERSION or /cookbook_artifacts/NAME/IDENTIFIER
elsif %w(cookbooks cookbook_artifacts).include?(path[0]) && path.length == 3
with_entry(path) do |entry|
cookbook_type = path[0]
result = nil
begin
result = Chef::CookbookManifest.new(entry.chef_object, policy_mode: cookbook_type == "cookbook_artifacts").to_hash
rescue Chef::ChefFS::FileSystem::NotFoundError => e
raise ChefZero::DataStore::DataNotFoundError.new(to_zero_path(e.entry), e)
end
result.each_pair do |key, value|
if value.is_a?(Array)
value.each do |file|
if file.is_a?(Hash) && file.has_key?("checksum")
relative = ["file_store", "repo", cookbook_type]
if chef_fs.versioned_cookbooks || cookbook_type == "cookbook_artifacts"
relative << "#{path[1]}-#{path[2]}"
else
relative << path[1]
end
relative = relative + file[:path].split("/")
file["url"] = ChefZero::RestBase::build_uri(request.base_uri, relative)
end
end
end
end
# Cookbook artifacts act as if certain things aren't set if they are empty
# (e.g. "definitions" and "libraries" are not set if they are empty, but
# "recipes" is)
if cookbook_type == "cookbook_artifacts"
result.delete_if do |key,value|
(value == [] && key != "recipes")
end
result["metadata"] = result["metadata"].to_hash
result["metadata"].delete_if do |key,value|
value == [] ||
(value == {} && !%w(dependencies attributes recipes).include?(key)) ||
(value == "" && %w(source_url issues_url).include?(key)) ||
(value == false && key == "privacy")
end
end
Chef::JSONCompat.to_json_pretty(result)
end
else
with_entry(path) do |entry|
begin
entry.read
rescue Chef::ChefFS::FileSystem::NotFoundError => e
raise ChefZero::DataStore::DataNotFoundError.new(to_zero_path(e.entry), e)
end
end
end
end
def set(path, data, *options)
if use_memory_store?(path)
@memory_store.set(path, data, *options)
else
if !data.is_a?(String)
raise "set only works with strings: #{path} = #{data.inspect}"
end
# Write out the files!
if %w(cookbooks cookbook_artifacts).include?(path[0]) && path.length == 3
write_cookbook(path, data, *options)
# Handle /policy_groups/some_policy_group/policies/some_policy_name
elsif path[0] == "policy_groups" && path[2] == "policies" && path.length == 4
# Just set or create the proper entry in the hash
update_json(to_chef_fs_path(path[0..1]), {}, *options) do |group|
group["policies"] ||= {}
group["policies"][path[3]] = { "revision_id" => Chef::JSONCompat.parse(data) }
group
end
else
with_parent_dir(path, *options) do |parent, name|
child = parent.child(name)
if child.exists?
child.write(data)
else
parent.create_child(name, data)
end
end
end
end
end
def delete(path)
if use_memory_store?(path)
@memory_store.delete(path)
# DELETE /policy_groups/GROUP/policies/POLICY
elsif path[0] == "policy_groups" && path[2] == "policies" && path.length == 4
update_json(to_chef_fs_path(path[0..1]), {}) do |group|
unless group["policies"] && group["policies"].has_key?(path[3])
raise ChefZero::DataStore::DataNotFoundError.new(path)
end
group["policies"].delete(path[3])
group
end
# DELETE [/organizations/ORG]/users/NAME
# Manipulates members.json
elsif is_org? && path[0] == "users" && path.length == 2
update_json("members.json", []) do |members|
result = members.reject { |member| member["user"]["username"] == path[1] }
if result.size == members.size
raise ChefZero::DataStore::DataNotFoundError.new(path)
end
result
end
# DELETE [/organizations/ORG]/users/NAME
# Manipulates members.json
elsif is_org? && path[0] == "association_requests" && path.length == 2
update_json("invitations.json", []) do |invitations|
result = invitations.reject { |invitation| invitation["username"] == path[1] }
if result.size == invitations.size
raise ChefZero::DataStore::DataNotFoundError.new(path)
end
result
end
else
with_entry(path) do |entry|
begin
if %w(cookbooks cookbook_artifacts).include?(path[0]) && path.length >= 3
entry.delete(true)
else
entry.delete(false)
end
rescue Chef::ChefFS::FileSystem::NotFoundError => e
raise ChefZero::DataStore::DataNotFoundError.new(to_zero_path(e.entry), e)
end
end
end
end
def delete_dir(path, *options)
if use_memory_store?(path)
@memory_store.delete_dir(path, *options)
# DELETE /policies/POLICY
elsif path[0] == "policies" && path.length == 2
with_entry(path[0..0]) do |policies|
# /policies:
# - a-1.0.0.json
# - a-1.0.1.json
# - b-2.0.0.json
found_policy = false
policies.children.each do |policy|
# We want to delete just the ones that == POLICY
next unless policy.name.rpartition("-")[0] == path[1]
policy.delete(false)
found_policy = true
end
raise ChefZero::DataStore::DataNotFoundError.new(path) if !found_policy
end
else
with_entry(path) do |entry|
begin
entry.delete(options.include?(:recursive))
rescue Chef::ChefFS::FileSystem::NotFoundError => e
raise ChefZero::DataStore::DataNotFoundError.new(to_zero_path(e.entry), e)
end
end
end
end
def list(path)
if use_memory_store?(path)
@memory_store.list(path)
# LIST /policies
elsif path == [ "policies" ]
with_entry([ path[0] ]) do |policies|
policies.children.map { |policy| policy.name[0..-6].rpartition("-")[0] }.uniq
end
# LIST /policies/POLICY/revisions
elsif path[0] == "policies" && path[2] == "revisions" && path.length == 3
with_entry([ path[0] ]) do |policies|
# /policies:
# - a-1.0.0.json
# - a-1.0.1.json
# - b-2.0.0.json
revisions = []
policies.children.each do |policy|
name, dash, revision = policy.name[0..-6].rpartition("-")
revisions << revision if name == path[1]
end
raise ChefZero::DataStore::DataNotFoundError.new(path) if revisions.empty?
revisions
end
elsif path[0] == "policy_groups" && path.length == 2
with_entry(path) do |entry|
[ "policies" ]
end
elsif path[0] == "policy_groups" && path[2] == "policies" && path.length == 3
with_entry(path[0..1]) do |entry|
policies = Chef::JSONCompat.parse(entry.read)["policies"] || {}
policies.keys
end
elsif %w(cookbooks cookbook_artifacts).include?(path[0]) && path.length == 1
with_entry(path) do |entry|
begin
if path[0] == "cookbook_artifacts"
entry.children.map { |child| child.name.rpartition("-")[0] }.uniq
elsif chef_fs.versioned_cookbooks
# /cookbooks/name-version -> /cookbooks/name
entry.children.map { |child| split_name_version(child.name)[0] }.uniq
else
entry.children.map { |child| child.name }
end
rescue Chef::ChefFS::FileSystem::NotFoundError
# If the cookbooks dir doesn't exist, we have no cookbooks (not 404)
[]
end
end
elsif %w(cookbooks cookbook_artifacts).include?(path[0]) && path.length == 2
if chef_fs.versioned_cookbooks || path[0] == "cookbook_artifacts"
result = with_entry([ path[0] ]) do |entry|
# list /cookbooks/name = filter /cookbooks/name-version down to name
entry.children.map { |child| split_name_version(child.name) }.
select { |name, version| name == path[1] }.
map { |name, version| version }
end
if result.empty?
raise ChefZero::DataStore::DataNotFoundError.new(path)
end
result
else
# list /cookbooks/name = <single version>
version = get_single_cookbook_version(path)
[version]
end
else
result = with_entry(path) do |entry|
begin
entry.children.map { |c| zero_filename(c) }.sort
rescue Chef::ChefFS::FileSystem::NotFoundError => e
# /cookbooks, /data, etc. never return 404
if path_always_exists?(path)
[]
else
raise ChefZero::DataStore::DataNotFoundError.new(to_zero_path(e.entry), e)
end
end
end
# Older versions of chef-zero do not understand policies and cookbook_artifacts,
# don't give that stuff to them
if path == [] && ChefZero::VERSION.to_f < 4.4
result.reject! { |child| %w(policies policy_data cookbook_artifacts).include?(child) }
end
result
end
end
def exists?(path)
if use_memory_store?(path)
@memory_store.exists?(path)
# /policy_groups/NAME/policies/POLICYNAME
elsif path[0] == "policy_groups" && path[2] == "policies" && path.length == 4
group = get_json(to_chef_fs_path(path[0..1]), {})
group["policies"] && group["policies"].has_key?(path[3])
else
path_always_exists?(path) || Chef::ChefFS::FileSystem.resolve_path(chef_fs, to_chef_fs_path(path)).exists?
end
end
def exists_dir?(path)
if use_memory_store?(path)
@memory_store.exists_dir?(path)
elsif %w(cookbooks cookbook_artifacts).include?(path[0]) && path.length == 2
list([ path[0] ]).include?(path[1])
# /policies/NAME
elsif path[0] == "policies" && path.length == 2
list([ path[0] ]).include?(path[1])
# /policy_groups/NAME/policies
elsif path[0] == "policy_groups" && path[2] == "policies" && path.length == 3
exists_dir?(path[0..1])
else
Chef::ChefFS::FileSystem.resolve_path(chef_fs, to_chef_fs_path(path)).exists?
end
end
private
def use_memory_store?(path)
return path[0] == "sandboxes" || path[0] == "file_store" && path[1] == "checksums" || path == [ "environments", "_default" ]
end
def write_cookbook(path, data, *options)
cookbook_type = path[0]
if chef_fs.versioned_cookbooks
cookbook_path = File.join(cookbook_type, "#{path[1]}-#{path[2]}")
else
cookbook_path = File.join(cookbook_type, path[1])
end
# Create a little Chef::ChefFS memory filesystem with the data
cookbook_fs = Chef::ChefFS::FileSystem::Memory::MemoryRoot.new("uploading")
cookbook = Chef::JSONCompat.parse(data)
cookbook.each_pair do |key, value|
if value.is_a?(Array)
value.each do |file|
if file.is_a?(Hash) && file.has_key?("checksum")
file_data = @memory_store.get(["file_store", "checksums", file["checksum"]])
cookbook_fs.add_file(File.join(cookbook_path, file["path"]), file_data)
end
end
end
end
# Create the .uploaded-cookbook-version.json
cookbooks = chef_fs.child(cookbook_type)
if !cookbooks.exists?
cookbooks = chef_fs.create_child(cookbook_type)
end
# We are calling a cookbooks-specific API, so get multiplexed_dirs out of the way if it is there
if cookbooks.respond_to?(:multiplexed_dirs)
cookbooks = cookbooks.write_dir
end
cookbooks.write_cookbook(cookbook_path, data, cookbook_fs)
end
def split_name_version(entry_name)
name_version = entry_name.split("-")
name = name_version[0..-2].join("-")
version = name_version[-1]
[name,version]
end
def to_chef_fs_path(path)
_to_chef_fs_path(path).join("/")
end
def chef_fs_filename(path)
_to_chef_fs_path(path)[-1]
end
def _to_chef_fs_path(path)
# /data -> /data_bags
# /data/BAG -> /data_bags/BAG
# /data/BAG/ITEM -> /data_bags/BAG/ITEM.json
if path[0] == "data"
path = path.dup
path[0] = "data_bags"
if path.length >= 3
path[2] = "#{path[2]}.json"
end
# /policies/POLICY/revisions/REVISION -> /policies/POLICY-REVISION.json
elsif path[0] == "policies" && path[2] == "revisions" && path.length >= 4
path = [ "policies", "#{path[1]}-#{path[3]}.json" ]
elsif %w(cookbooks cookbook_artifacts).include?(path[0])
if path.length == 2
raise ChefZero::DataStore::DataNotFoundError.new(path)
elsif path.length >= 3
if chef_fs.versioned_cookbooks || path[0] == "cookbook_artifacts"
# cookbooks/name/version -> cookbooks/name-version
path = [ path[0], "#{path[1]}-#{path[2]}" ] + path[3..-1]
else
# cookbooks/name/version/... -> /cookbooks/name/... iff metadata says so
version = get_single_cookbook_version(path)
if path[2] == version
path = path[0..1] + path[3..-1]
else
raise ChefZero::DataStore::DataNotFoundError.new(path)
end
end
end
elsif path[0] == "acls"
# /acls/containers|nodes|.../x.json
# /acls/organization.json
if path.length == 3 || path == [ "acls", "organization" ]
path = path.dup
path[-1] = "#{path[-1]}.json"
end
# /acls/containers|nodes|... do NOT drop into the next elsif, and do
# not get .json appended
# /nodes|clients|.../x.json
elsif path.length == 2
path = path.dup
path[-1] = "#{path[-1]}.json"
end
path
end
def to_zero_path(entry)
path = entry.path.split("/")[1..-1]
if path[0] == "data_bags"
path = path.dup
path[0] = "data"
if path.length >= 3
path[2] = path[2][0..-6]
end
elsif %w(cookbooks cookbook_artifacts).include?(path[0])
if chef_fs.versioned_cookbooks || path[0] == "cookbook_artifacts"
# cookbooks/name-version/... -> cookbooks/name/version/...
if path.length >= 2
name, version = split_name_version(path[1])
path = [ path[0], name, version ] + path[2..-1]
end
else
if path.length >= 2
# cookbooks/name/... -> cookbooks/name/version/...
version = get_single_cookbook_version(path)
path = path[0..1] + [version] + path[2..-1]
end
end
# /policies/NAME-REVISION.json -> /policies/NAME/revisions/REVISION
elsif path[0] == "policies"
if path.length >= 2
name, dash, revision = path[1][0..-6].rpartition("-")
path = [ "policies", name, "revisions", revision ]
end
elsif path.length == 2 && path[0] != "cookbooks"
path = path.dup
path[1] = path[1][0..-6]
end
path
end
def zero_filename(entry)
to_zero_path(entry)[-1]
end
def path_always_exists?(path)
return path.length == 1 && %w(clients cookbooks data environments nodes roles users).include?(path[0])
end
def with_entry(path)
begin
yield Chef::ChefFS::FileSystem.resolve_path(chef_fs, to_chef_fs_path(path))
rescue Chef::ChefFS::FileSystem::NotFoundError => e
raise ChefZero::DataStore::DataNotFoundError.new(to_zero_path(e.entry), e)
end
end
def with_parent_dir(path, *options)
path = _to_chef_fs_path(path)
begin
yield get_dir(path[0..-2], options.include?(:create_dir)), path[-1]
rescue Chef::ChefFS::FileSystem::NotFoundError => e
err = ChefZero::DataStore::DataNotFoundError.new(to_zero_path(e.entry), e)
err.set_backtrace(e.backtrace)
raise err
end
end
def with_dir(path)
# Do not automatically create data bags
create = !(path[0] == "data" && path.size >= 2)
begin
yield get_dir(_to_chef_fs_path(path), create)
rescue Chef::ChefFS::FileSystem::NotFoundError => e
err = ChefZero::DataStore::DataNotFoundError.new(to_zero_path(e.entry), e)
err.set_backtrace(e.backtrace)
raise err
end
end
def get_dir(path, create=false)
result = Chef::ChefFS::FileSystem.resolve_path(chef_fs, path.join("/"))
if result.exists?
result
elsif create || path.size == 1
get_dir(path[0..-2], create).create_child(result.name, nil)
else
raise ChefZero::DataStore::DataNotFoundError.new(path)
end
end
def get_single_cookbook_version(path)
dir = Chef::ChefFS::FileSystem.resolve_path(chef_fs, path[0..1].join("/"))
metadata = ChefZero::CookbookData.metadata_from(dir, path[1], nil, [])
metadata[:version] || "0.0.0"
end
def update_json(path, default_value, *options)
entry = Chef::ChefFS::FileSystem.resolve_path(chef_fs, path)
begin
input = Chef::JSONCompat.parse(entry.read)
output = yield input
entry.write(Chef::JSONCompat.to_json_pretty(output)) if output != Chef::JSONCompat.parse(entry.read)
rescue Chef::ChefFS::FileSystem::NotFoundError
# Send the default value to the caller, and create the entry if the caller updates it
output = yield default_value
parent = entry.parent
parent = ensure_dir(parent) if options.include?(:create_dir)
parent.create_child(entry.name, Chef::JSONCompat.to_json_pretty(output)) if output != []
end
end
def ensure_dir(entry)
return entry if entry.exists?
parent = entry.parent
if parent
ensure_dir(parent)
parent.create_child(entry.name)
end
end
def get_json(path, default_value)
entry = Chef::ChefFS::FileSystem.resolve_path(chef_fs, path)
begin
Chef::JSONCompat.parse(entry.read)
rescue Chef::ChefFS::FileSystem::NotFoundError
default_value
end
end
def is_org?
repo_mode == "hosted_everything"
end
end
end
end
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