old_contents: # swift_build_support/products/swiftdoccrender.py ---------------*- python -*-
  #
  # This source file is part of the Swift.org open source project
  #
  # Copyright (c) 2014 - 2021 Apple Inc. and the Swift project authors
  # Licensed under Apache License v2.0 with Runtime Library Exception
  #
  # See https://swift.org/LICENSE.txt for license information
  # See https://swift.org/CONTRIBUTORS.txt for the list of Swift project authors
  #
  # ----------------------------------------------------------------------------
  
  import os
  
  from . import product
  from .. import shell
  
  
  class SwiftDocCRender(product.Product):
      @classmethod
      def product_source_name(cls):
          """product_source_name() -> str
  
          The name of the source code directory of this product.
          """
          return "swift-docc-render-artifact"
  
      @classmethod
      def is_build_script_impl_product(cls):
          return False
  
      @classmethod
      def is_before_build_script_impl_product(cls):
          return False
  
      @classmethod
      def is_swiftpm_unified_build_product(cls):
          return False
  
      def should_build(self, host_target):
          # Swift-DocC-Render is a pre-built, installable artifact.
          return False
  
      def should_test(self, host_target):
          # Swift-DocC-Render is a pre-built, installable artifact.
          return False
  
      def should_install(self, host_target):
          # Swift-DocC-Render should always be installed if Swift-DocC is being installed
          return self.args.install_swiftdocc
  
      def install(self, host_target):
          # Swift-DocC-Render is installed at '/usr/share/docc/render' in the built
          # toolchain.
          install_toolchain_path = self.install_toolchain_path(host_target)
          install_path = os.path.join(install_toolchain_path, 'share', 'docc', 'render')
  
          # The pre-built version of Swift-DocC-Render is distributed in the 'dist'
          # folder at the root of the swift-docc-render-artifact repository
          artifact_dist_path = os.path.join(self.source_dir, 'dist')
  
          # Add a trailing slash so that we copy the contents of the 'dist' directory
          # instead of the 'dist' directory itself.
          artifact_dist_path_with_trailing_slash = os.path.join(artifact_dist_path, '')
  
          shell.call(["mkdir", "-p", install_path])
          shell.call(
              ["rsync", "-a", artifact_dist_path_with_trailing_slash, install_path])
  
      @classmethod
      def get_dependencies(cls):
          return []
  
new_contents: # swift_build_support/products/swiftdoccrender.py ---------------*- python -*-
  #
  # This source file is part of the Swift.org open source project
  #
  # Copyright (c) 2014 - 2021 Apple Inc. and the Swift project authors
  # Licensed under Apache License v2.0 with Runtime Library Exception
  #
  # See https://swift.org/LICENSE.txt for license information
  # See https://swift.org/CONTRIBUTORS.txt for the list of Swift project authors
  #
  # ----------------------------------------------------------------------------
  
  import os
  
  from . import product
  from . import swiftdocc
  from .. import shell
  
  
  class SwiftDocCRender(product.Product):
      @classmethod
      def product_source_name(cls):
          """product_source_name() -> str
  
          The name of the source code directory of this product.
          """
          return "swift-docc-render-artifact"
  
      @classmethod
      def is_build_script_impl_product(cls):
          return False
  
      @classmethod
      def is_before_build_script_impl_product(cls):
          return False
  
      @classmethod
      def is_swiftpm_unified_build_product(cls):
          return False
  
      def should_build(self, host_target):
          # Swift-DocC-Render is a pre-built, installable artifact.
          return False
  
      def should_test(self, host_target):
          # Swift-DocC-Render is a pre-built, installable artifact.
          return False
  
      def should_install(self, host_target):
          # Swift-DocC-Render should always be installed if Swift-DocC is being installed
          return self.args.install_swiftdocc
  
      def install(self, host_target):
          # Swift-DocC-Render is installed at '/usr/share/docc/render' in the built
          # toolchain.
          install_toolchain_path = self.install_toolchain_path(host_target)
          install_path = os.path.join(install_toolchain_path, 'share', 'docc', 'render')
  
          # The pre-built version of Swift-DocC-Render is distributed in the 'dist'
          # folder at the root of the swift-docc-render-artifact repository
          artifact_dist_path = os.path.join(self.source_dir, 'dist')
  
          # Add a trailing slash so that we copy the contents of the 'dist' directory
          # instead of the 'dist' directory itself.
          artifact_dist_path_with_trailing_slash = os.path.join(artifact_dist_path, '')
  
          shell.call(["mkdir", "-p", install_path])
          shell.call(
              ["rsync", "-a", artifact_dist_path_with_trailing_slash, install_path])
  
      @classmethod
      def get_dependencies(cls):
          return [swiftdocc.SwiftDocC]
  
subject: add missing DocC dependency