xref: /aosp_15_r20/external/webrtc/rtc_tools/class_usage.sh (revision d9f758449e529ab9291ac668be2861e7a55c2422)
1#!/bin/bash
2
3# Copyright (c) 2017 The WebRTC project authors. All Rights Reserved.
4#
5# Use of this source code is governed by a BSD-style license
6# that can be found in the LICENSE file in the root of the source
7# tree. An additional intellectual property rights grant can be found
8# in the file PATENTS.  All contributing project authors may
9# be found in the AUTHORS file in the root of the source tree.
10
11# This script is run in a git repository. It lists all classes defined
12# in header files, sorted by the number of other files where the name
13# of the class occurs. It is intentionally not limited to only source
14# files. Classes close to the top of the list are candidates for
15# removal.
16
17git grep -h '^class .*[:{]' -- '*.h' '*.hpp' \
18  | sed -e 's/WEBRTC_DLL_EXPORT// ' -e 's/^class *\([^ :{(<]*\).*/\1/' \
19  | sort | uniq | while read class ; do
20  count="$(git grep -l -w -F "${class}" | wc -l)"
21  echo "${count}" "${class}"
22done | sort -n
23