old_contents: # Copyright 2021 Google LLC
  #
  # 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
  #
  #      https://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.
  
  """A utility to enforce that a list matches a glob expression.
  
  We use this primarily to enable the error-checking capabilities of globs of test
  files in IREE while still allowing our Bazel to CMake conversion to not create
  CMake globs (which are discouraged for collecting source files, see
  https://cmake.org/cmake/help/latest/command/file.html#glob) and not be dependent
  on any information outside of the BUILD file.
  """
  
  def enforce_glob(files, **kwargs):
      """A utility to enforce that a list matches a glob expression.
  
      Note that the comparison is done in an order-independent fashion.
  
      Args:
          files: a list that is expected to contain the same files as the
              specified glob expression.
          **kwargs: keyword arguments forwarded to the glob.
  
      Returns:
          files. The input argument unchanged
      """
      glob_result = native.glob(**kwargs)
  
      # glob returns a sorted list.
      if sorted(files) != glob_result:
          glob_result_dict = {k: None for k in glob_result}
          result_dict = {k: None for k in files}
          missing = [k for k in glob_result if k not in files]
          extra = [k for k in files if k not in glob_result]
          fail(("Error in enforce_glob." +
                "\nExpected {}." +
                "\nGot {}." +
                "\nMissing {}." +
                "\nExtra {}").format(glob_result, files, missing, extra))
      return files
  
new_contents: # Copyright 2021 Google LLC
  #
  # 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
  #
  #      https://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.
  
  """A utility to enforce that a list matches a glob expression.
  
  We use this primarily to enable the error-checking capabilities of globs of test
  files in IREE while still allowing our Bazel to CMake conversion to not create
  CMake globs (which are discouraged for collecting source files, see
  https://cmake.org/cmake/help/latest/command/file.html#glob) and not be dependent
  on any information outside of the BUILD file.
  """
  
  def enforce_glob(files, **kwargs):
      """A utility to enforce that a list matches a glob expression.
  
      Note that the comparison is done in an order-independent fashion.
  
      Args:
          files: a list that is expected to contain the same files as the
              specified glob expression.
          **kwargs: keyword arguments forwarded to the glob.
  
      Returns:
          files. The input argument unchanged
      """
      glob_result = native.glob(**kwargs)
  
      # glob returns a sorted list.
      if sorted(files) != glob_result:
          glob_result_dict = {k: None for k in glob_result}
          result_dict = {k: None for k in files}
          missing = [k for k in glob_result if k not in files]
          extra = [k for k in files if k not in glob_result]
          expected_formatted = "\n".join(['"{}",'.format(file) for file in glob_result])
          fail(("Error in enforce_glob." +
                "\nExpected {}." +
                "\nGot {}." +
                "\nMissing {}." +
                "\nExtra {}" +
                "\nPaste this into the first enforce_glob argument:" +
                "\n{}").format(
              glob_result,
              files,
              missing,
              extra,
              expected_formatted,
          ))
      return files
  
subject: Make error message in enforce_glob more copy-pasteable (#5071)