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#!/usr/bin/env python3
# Copyright (C) 2023 Igalia S.L.
#
# Redistribution and use in source and binary forms, with or without
# modification, are permitted provided that the following conditions are
# met:
#
# * Redistributions of source code must retain the above copyright
# notice, this list of conditions and the following disclaimer.
# * Redistributions in binary form must reproduce the above
# copyright notice, this list of conditions and the following disclaimer
# in the documentation and/or other materials provided with the
# distribution.
# * Neither the name of Apple Inc. ("Apple") nor the names of
# its contributors may be used to endorse or promote products derived
# from this software without specific prior written permission.
#
# THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
# "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
# LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
# A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
# OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
# SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
# LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
# DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
# THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
# (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
# OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
import argparse
import json
import os
import re
parser = argparse.ArgumentParser(
description='This tool takes the compile_commands.json output by CMake and expands any UnifiedSources in it to regular sources.'
)
parser.add_argument('input_file')
parser.add_argument('output_file')
parser.add_argument('source_dir')
parser.add_argument('build_dir')
args = parser.parse_args()
source_dir = args.source_dir
build_dir = args.build_dir
generated_compile_commands = []
with open(args.input_file) as f:
compile_commands = json.load(f)
for entry in compile_commands:
entry_file = entry['file']
if not 'UnifiedSource' in entry_file:
generated_compile_commands.append(entry)
continue
# The paths we expect are in the style of:
# - WebKit/WebKitBuild/Release/DerivedSources/WebKit/unified-sources/UnifiedSource-54928a2b-29.cpp
# - WebKit/WebKitBuild/Release/WebCore/DerivedSources/unified-sources/UnifiedSource-42f7b70e-5.cpp
# And Windows too:
# - WebKit\WebKitBuild\Release\WebCore\DerivedSources\unified-sources\UnifiedSource-42f7b70e-5.cpp
# So we extract the parent folders to map them to the source folders.
parent_dir_1, parent_dir_2 = entry_file.rsplit(os.path.sep, maxsplit=4)[1:3]
search_directories = [
os.path.join(build_dir, parent_dir_1, parent_dir_2),
]
if parent_dir_1 == 'DerivedSources':
search_directories.append(os.path.join(source_dir, 'Source', parent_dir_2))
else:
search_directories.append(os.path.join(source_dir, 'Source', parent_dir_1))
with open(entry_file) as f:
for line in f.readlines():
include_path = line[10:-2] # Extract header from `#include "HEADER"\n`
for d in search_directories:
include_file = os.path.join(d, include_path)
if os.path.exists(include_file):
renamed_entry = {
"directory": entry["directory"],
"file": include_file,
}
if "command" in entry:
renamed_entry["command"] = entry["command"].replace(entry_file, include_file)
else:
renamed_arguments = [arg.replace(entry_file, include_file) for arg in entry["arguments"]]
renamed_entry["arguments"] = renamed_arguments
generated_compile_commands.append(renamed_entry)
break
output_directory = os.path.dirname(args.output_file)
if not os.path.isdir(output_directory):
os.makedirs(output_directory)
with open(args.output_file, 'w') as f:
json.dump(generated_compile_commands, f, indent=2)
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