Method: Chef::ChefFS::ChefFSDataStore#list

Defined in:

lib/chef/chef_fs/chef_fs_data_store.rb

#list(path) ⇒ Object

# File 'lib/chef/chef_fs/chef_fs_data_store.rb', line 483

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
    rescue Chef::ChefFS::FileSystem::NotFoundError
      []

    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|

      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(&:name)
      end
    rescue Chef::ChefFS::FileSystem::NotFoundError
      # If the cookbooks dir doesn't exist, we have no cookbooks (not 404)
      []

    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|

      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

    # 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