#!/bin/bash

# Copyright (c) 2016 The WebRTC project authors. All Rights Reserved.
#
# Use of this source code is governed by a BSD-style license
# that can be found in the LICENSE file in the root of the source
# tree. An additional intellectual property rights grant can be found
# in the file PATENTS.  All contributing project authors may
# be found in the AUTHORS file in the root of the source tree.

# This script is run in a git repository. It lists all header files,
# sorted by the number of other files where the file name of the file
# occurs. It is intentionally not limited to only source files, and
# there may be some false hits because we search only for the file
# part (sans directory). It is quite slow.
#
# Headers close to the top of the list are candidates for removal.

git ls-files '*.h' '*.hpp' | while read header ; do
  name="$(basename "${header}")"
  count="$(git grep -l -F  "${name}" | wc -l)"
  echo "${count}" "${header}"
done | sort -n