Class: Chef::CookbookLoader
- Inherits:
-
Object
- Object
- Chef::CookbookLoader
- Includes:
- Enumerable
- Defined in:
- lib/chef/cookbook_loader.rb
Overview
This class is used by knife, cheffs and legacy chef-solo modes. It is not used by the server mode of chef-client or zolo/zero modes.
This class implements orchestration around producing a single cookbook_version for a cookbook or loading a Mash of all cookbook_versions, using the cookbook_version_loader class, and doing lazy-access and memoization to only load each cookbook once on demand.
This implements a key-value style each which makes it appear to be a Hash of String => CookbookVersion pairs where the String is the cookbook name. The use of Enumerable combined with the Hash-style each is likely not entirely sane.
This object is also passed and injected into the CookbookCollection object where it is converted to a Mash that looks almost exactly like the cookbook_by_name Mash in this object.
Instance Attribute Summary collapse
-
#repo_paths ⇒ Array<String>
readonly
The array of repo paths containing cookbook dirs.
Class Method Summary collapse
-
.copy_to_tmp_dir_from_array(cookbooks) ⇒ Object
This method creates tmp directory and copies all cookbooks into it and creates cookbook loader object which points to tmp directory.
Instance Method Summary collapse
- #[](cookbook) ⇒ Object (also: #fetch)
-
#compile_metadata ⇒ Object
generates metadata.json adds it in the manifest.
- #cookbook_names ⇒ Object
-
#cookbooks_by_name ⇒ Mash<String, Chef::CookbookVersion>
The primary function of this class is to build this Mash mapping cookbook names as a string to the CookbookVersion objects for them.
- #each ⇒ Object
- #each_key(&block) ⇒ Object
- #each_value(&block) ⇒ Object
-
#freeze_versions ⇒ Object
freeze versions of all the cookbooks.
- #has_key?(cookbook_name) ⇒ Boolean (also: #cookbook_exists?, #key?)
-
#initialize(*repo_paths) ⇒ CookbookLoader
constructor
A new instance of CookbookLoader.
-
#load_cookbook(cookbook_name) ⇒ Chef::CookbookVersion
Loads a single cookbook by its name.
-
#load_cookbooks ⇒ Mash<String, Chef::CookbookVersion>
Loads all cookbooks across all repo_paths.
-
#metadata ⇒ Mash<String, Chef::Cookbook::Metadata>
This class also builds a mapping of cookbook names to their Metadata objects.
- #values ⇒ Object (also: #cookbooks)
Constructor Details
#initialize(*repo_paths) ⇒ CookbookLoader
Returns a new instance of CookbookLoader.
51 52 53 54 |
# File 'lib/chef/cookbook_loader.rb', line 51 def initialize(*repo_paths) @repo_paths = repo_paths.flatten.compact.map { |p| File.(p) } raise ArgumentError, "You must specify at least one cookbook repo path" if @repo_paths.empty? end |
Instance Attribute Details
#repo_paths ⇒ Array<String> (readonly)
Returns the array of repo paths containing cookbook dirs.
45 46 47 |
# File 'lib/chef/cookbook_loader.rb', line 45 def repo_paths @repo_paths end |
Class Method Details
.copy_to_tmp_dir_from_array(cookbooks) ⇒ Object
This method creates tmp directory and copies all cookbooks into it and creates cookbook loader object which points to tmp directory
139 140 141 142 143 144 145 146 147 148 149 150 151 152 153 154 155 156 157 |
# File 'lib/chef/cookbook_loader.rb', line 139 def self.copy_to_tmp_dir_from_array(cookbooks) Dir.mktmpdir do |tmp_dir| cookbooks.each do |cookbook| checksums_to_on_disk_paths = cookbook.checksums cookbook.each_file do |manifest_record| path_in_cookbook = manifest_record[:path] on_disk_path = checksums_to_on_disk_paths[manifest_record[:checksum]] dest = File.join(tmp_dir, cookbook.name.to_s, path_in_cookbook) FileUtils.mkdir_p(File.dirname(dest)) FileUtils.cp_r(on_disk_path, dest) end end tmp_cookbook_loader ||= begin Chef::Cookbook::FileVendor.fetch_from_disk(tmp_dir) CookbookLoader.new(tmp_dir) end yield tmp_cookbook_loader end end |
Instance Method Details
#[](cookbook) ⇒ Object Also known as: fetch
103 104 105 |
# File 'lib/chef/cookbook_loader.rb', line 103 def [](cookbook) load_cookbook(cookbook) end |
#compile_metadata ⇒ Object
generates metadata.json adds it in the manifest
160 161 162 163 164 165 166 167 168 |
# File 'lib/chef/cookbook_loader.rb', line 160 def each do |cookbook_name, cookbook| = cookbook. if cookbook.all_files << cookbook.cookbook_manifest.send(:generate_manifest) end end end |
#cookbook_names ⇒ Object
130 131 132 |
# File 'lib/chef/cookbook_loader.rb', line 130 def cookbook_names cookbooks_by_name.keys.sort end |
#cookbooks_by_name ⇒ Mash<String, Chef::CookbookVersion>
The primary function of this class is to build this Mash mapping cookbook names as a string to the CookbookVersion objects for them. Callers must call “load_cookbooks” first.
60 61 62 |
# File 'lib/chef/cookbook_loader.rb', line 60 def cookbooks_by_name @cookbooks_by_name ||= Mash.new end |
#each ⇒ Object
116 117 118 119 120 |
# File 'lib/chef/cookbook_loader.rb', line 116 def each cookbooks_by_name.keys.sort_by(&:to_s).each do |cname| yield(cname, cookbooks_by_name[cname]) end end |
#each_key(&block) ⇒ Object
122 123 124 |
# File 'lib/chef/cookbook_loader.rb', line 122 def each_key(&block) cookbook_names.each(&block) end |
#each_value(&block) ⇒ Object
126 127 128 |
# File 'lib/chef/cookbook_loader.rb', line 126 def each_value(&block) values.each(&block) end |
#freeze_versions ⇒ Object
freeze versions of all the cookbooks
171 172 173 174 175 |
# File 'lib/chef/cookbook_loader.rb', line 171 def freeze_versions each do |cookbook_name, cookbook| cookbook.freeze_version end end |
#has_key?(cookbook_name) ⇒ Boolean Also known as: cookbook_exists?, key?
109 110 111 |
# File 'lib/chef/cookbook_loader.rb', line 109 def has_key?(cookbook_name) not self[cookbook_name.to_sym].nil? end |
#load_cookbook(cookbook_name) ⇒ Chef::CookbookVersion
Loads a single cookbook by its name.
86 87 88 89 90 91 92 93 94 95 96 97 98 99 100 101 |
# File 'lib/chef/cookbook_loader.rb', line 86 def load_cookbook(cookbook_name) unless cookbook_version_loaders.key?(cookbook_name) raise Exceptions::CookbookNotFoundInRepo, "Cannot find a cookbook named #{cookbook_name}; did you forget to add metadata to a cookbook? (https://docs.chef.io/config_rb_metadata/)" end return cookbooks_by_name[cookbook_name] if cookbooks_by_name.key?(cookbook_name) loader = cookbook_version_loaders[cookbook_name] loader.load! cookbook_version = loader.cookbook_version cookbooks_by_name[cookbook_name] = cookbook_version [cookbook_name] = cookbook_version. unless cookbook_version.nil? cookbook_version end |
#load_cookbooks ⇒ Mash<String, Chef::CookbookVersion>
Loads all cookbooks across all repo_paths
75 76 77 78 79 80 |
# File 'lib/chef/cookbook_loader.rb', line 75 def load_cookbooks cookbook_version_loaders.each_key do |cookbook_name| load_cookbook(cookbook_name) end cookbooks_by_name end |
#metadata ⇒ Mash<String, Chef::Cookbook::Metadata>
This class also builds a mapping of cookbook names to their Metadata objects. Callers must call “load_cookbooks” first.
68 69 70 |
# File 'lib/chef/cookbook_loader.rb', line 68 def @metadata ||= Mash.new end |
#values ⇒ Object Also known as: cookbooks
134 135 136 |
# File 'lib/chef/cookbook_loader.rb', line 134 def values cookbooks_by_name.values end |