resolve_includes.py

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#!/usr/bin/env python3
 
# Copyright (c) 2018 Samsung Electronics Co., Ltd. All Rights Reserved
#
# 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
#
#      http://www.apache.org/licenses/LICENSE-2.0
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# 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.
#
# Copyright (c) 2016, 2017 ARM Limited.
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# SPDX-License-Identifier: MIT
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# of this software and associated documentation files (the "Software"), to
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import collections
import os.path
import re
import subprocess
import glob
 
 
def resolve_includes(target, source):
    # File collection
    FileEntry = collections.namedtuple('FileEntry', 'target_name file_contents')
 
    # Include pattern
    pattern = re.compile("#include \"(.*)\"")
 
    # Get file contents
    files = []
    for i in range(len(source)):
        src = source[i]
        dst = target[i]
        f = open(src)
        cts = f.read()
        f.close()
        contents = cts.splitlines()
        entry = FileEntry(target_name=dst, file_contents=contents)
        files.append((os.path.basename(src), entry))
 
    # Create dictionary of tupled list
    files_dict = dict(files)
 
    # Check for includes (can only be files in the same folder)
    final_files = []
    for file in files:
        done = False
        tmp_file = file[1].file_contents
        print(file[1].target_name)
        while not done:
            file_count = 0
            updated_file = []
            for line in tmp_file:
                found = pattern.search(line)
                if found:
                    include_file = found.group(1)
                    data = files_dict[include_file].file_contents
                    updated_file.extend(data)
                else:
                    updated_file.append(line)
                    file_count += 1
 
            # Check if all include are replaced.
            if file_count == len(tmp_file):
                done = True
 
            # Update temp file
            tmp_file = updated_file
 
        # Append and prepend string literal identifiers and add expanded file to final list
        tmp_file.insert(0, "R\"(\n")
        tmp_file.append("\n)\"")
        entry = FileEntry(target_name=file[1].target_name, file_contents=tmp_file)
        final_files.append((file[0], entry))
 
    # Write output files
    for file in final_files:
        with open(file[1].target_name, 'w+') as out_file:
            out_file.write("\n".join(file[1].file_contents))
 
 
# Generate embed files
cl_files = glob.glob('src/core/CL/cl_kernels/*.cl')
cl_files += glob.glob('src/core/CL/cl_kernels/*.h')
 
# DEBUG: print cl files
print("cl_files:")
print(cl_files)
 
embed_files = [f + "embed" for f in cl_files]
print("embed_files:")
print(embed_files)
 
resolve_includes(embed_files, cl_files)