diff options
Diffstat (limited to 'lib/chef/cookbook/cookbook_version_loader.rb')
| -rw-r--r-- | lib/chef/cookbook/cookbook_version_loader.rb | 173 |
1 files changed, 173 insertions, 0 deletions
diff --git a/lib/chef/cookbook/cookbook_version_loader.rb b/lib/chef/cookbook/cookbook_version_loader.rb new file mode 100644 index 0000000000..48de17cc5a --- /dev/null +++ b/lib/chef/cookbook/cookbook_version_loader.rb @@ -0,0 +1,173 @@ + +require 'chef/config' +require 'chef/cookbook_version' +require 'chef/cookbook/chefignore' +require 'chef/cookbook/metadata' + +class Chef + class Cookbook + class CookbookVersionLoader + + FILETYPES_SUBJECT_TO_IGNORE = [ :attribute_filenames, + :definition_filenames, + :recipe_filenames, + :template_filenames, + :file_filenames, + :library_filenames, + :resource_filenames, + :provider_filenames] + + + attr_reader :cookbook_name + attr_reader :cookbook_settings + attr_reader :metadata_filenames + + def initialize(path, chefignore=nil) + @cookbook_path = File.expand_path( path ) + @cookbook_name = File.basename( path ) + @chefignore = chefignore + @metadata = Hash.new + @relative_path = /#{Regexp.escape(@cookbook_path)}\/(.+)$/ + @cookbook_settings = { + :attribute_filenames => {}, + :definition_filenames => {}, + :recipe_filenames => {}, + :template_filenames => {}, + :file_filenames => {}, + :library_filenames => {}, + :resource_filenames => {}, + :provider_filenames => {}, + :root_filenames => {} + } + + @metadata_filenames = [] + end + + def load_cookbooks + load_as(:attribute_filenames, 'attributes', '*.rb') + load_as(:definition_filenames, 'definitions', '*.rb') + load_as(:recipe_filenames, 'recipes', '*.rb') + load_as(:library_filenames, 'libraries', '*.rb') + load_recursively_as(:template_filenames, "templates", "*") + load_recursively_as(:file_filenames, "files", "*") + load_recursively_as(:resource_filenames, "resources", "*.rb") + load_recursively_as(:provider_filenames, "providers", "*.rb") + load_root_files + + remove_ignored_files + + if File.exists?(File.join(@cookbook_path, "metadata.rb")) + @metadata_filenames << File.join(@cookbook_path, "metadata.rb") + elsif File.exists?(File.join(@cookbook_path, "metadata.json")) + @metadata_filenames << File.join(@cookbook_path, "metadata.json") + end + + if empty? + Chef::Log.warn "found a directory #{cookbook_name} in the cookbook path, but it contains no cookbook files. skipping." + end + @cookbook_settings + end + + def cookbook_version + return nil if empty? + + Chef::CookbookVersion.new(@cookbook_name.to_sym).tap do |c| + c.root_dir = @cookbook_path + c.attribute_filenames = cookbook_settings[:attribute_filenames].values + c.definition_filenames = cookbook_settings[:definition_filenames].values + c.recipe_filenames = cookbook_settings[:recipe_filenames].values + c.template_filenames = cookbook_settings[:template_filenames].values + c.file_filenames = cookbook_settings[:file_filenames].values + c.library_filenames = cookbook_settings[:library_filenames].values + c.resource_filenames = cookbook_settings[:resource_filenames].values + c.provider_filenames = cookbook_settings[:provider_filenames].values + c.root_filenames = cookbook_settings[:root_filenames].values + c.metadata_filenames = @metadata_filenames + c.metadata = metadata(c) + end + end + + # Generates the Cookbook::Metadata object + def metadata(cookbook_version) + @metadata = Chef::Cookbook::Metadata.new(cookbook_version) + @metadata_filenames.each do |metadata_file| + case metadata_file + when /\.rb$/ + apply_ruby_metadata(metadata_file) + when /\.json$/ + apply_json_metadata(metadata_file) + else + raise RuntimeError, "Invalid metadata file: #{metadata_file} for cookbook: #{cookbook_version}" + end + end + @metadata + end + + def empty? + cookbook_settings.inject(true) do |all_empty, files| + all_empty && files.last.empty? + end + end + + def merge!(other_cookbook_loader) + other_cookbook_settings = other_cookbook_loader.cookbook_settings + @cookbook_settings.each do |file_type, file_list| + file_list.merge!(other_cookbook_settings[file_type]) + end + @metadata_filenames.concat(other_cookbook_loader.metadata_filenames) + end + + def chefignore + @chefignore ||= Chefignore.new(File.basename(@cookbook_path)) + end + + def load_root_files + Dir.glob(File.join(@cookbook_path, '*'), File::FNM_DOTMATCH).each do |file| + next if File.directory?(file) + @cookbook_settings[:root_filenames][file[@relative_path, 1]] = file + end + end + + def load_recursively_as(category, category_dir, glob) + file_spec = File.join(@cookbook_path, category_dir, '**', glob) + Dir.glob(file_spec, File::FNM_DOTMATCH).each do |file| + next if File.directory?(file) + @cookbook_settings[category][file[@relative_path, 1]] = file + end + end + + def load_as(category, *path_glob) + Dir[File.join(@cookbook_path, *path_glob)].each do |file| + @cookbook_settings[category][file[@relative_path, 1]] = file + end + end + + def remove_ignored_files + @cookbook_settings.each_value do |file_list| + file_list.reject! do |relative_path, full_path| + chefignore.ignored?(relative_path) + end + end + end + + def apply_ruby_metadata(file) + begin + @metadata.from_file(file) + rescue JSON::ParserError + Chef::Log.error("Error evaluating metadata.rb for #@cookbook_name in " + file) + raise + end + end + + def apply_json_metadata(file) + begin + @metadata.from_json(IO.read(file)) + rescue JSON::ParserError + Chef::Log.error("Couldn't parse cookbook metadata JSON for #@cookbook_name in " + file) + raise + end + end + + end + end +end |