1# encoding=utf-8 2# Copyright © 2018 Intel Corporation 3# 4# Permission is hereby granted, free of charge, to any person obtaining a 5# copy of this software and associated documentation files (the "Software"), 6# to deal in the Software without restriction, including without limitation 7# the rights to use, copy, modify, merge, publish, distribute, sublicense, 8# and/or sell copies of the Software, and to permit persons to whom the 9# Software is furnished to do so, subject to the following conditions: 10# 11# The above copyright notice and this permission notice (including the next 12# paragraph) shall be included in all copies or substantial portions of the 13# Software. 14# 15# THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR 16# IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, 17# FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL 18# THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER 19# LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING 20# FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS 21# IN THE SOFTWARE. 22 23# Converts a file to a C/C++ #include containing a string 24 25from __future__ import unicode_literals 26import argparse 27import io 28import os 29 30 31def get_args(): 32 parser = argparse.ArgumentParser() 33 parser.add_argument('input', help="Name of input file") 34 parser.add_argument('output', help="Name of output file") 35 parser.add_argument("-n", "--name", 36 help="Name of C variable") 37 parser.add_argument("-b", "--binary", dest='binary', action='store_const', 38 const=True, default=False) 39 args = parser.parse_args() 40 return args 41 42 43def filename_to_C_identifier(n): 44 if n[0] != '_' and not n[0].isalpha(): 45 n = "_" + n[1:] 46 47 return "".join([c if c.isalnum() or c == "_" else "_" for c in n]) 48 49 50def emit_byte(f, b): 51 f.write("0x{:02x}, ".format(ord(b)).encode('utf-8')) 52 53 54def process_file(args): 55 with io.open(args.input, "rb") as infile: 56 try: 57 with io.open(args.output, "wb") as outfile: 58 # If a name was not specified on the command line, pick one based on the 59 # name of the input file. If no input filename was specified, use 60 # from_stdin. 61 if args.name is not None: 62 name = args.name 63 else: 64 name = filename_to_C_identifier(args.input) 65 66 outfile.write("static const char {}[] = {{\n".format(name).encode('utf-8')) 67 68 linecount = 0 69 while True: 70 byte = infile.read(1) 71 if byte == b"": 72 break 73 74 if not args.binary: 75 assert(ord(byte) != 0) 76 77 emit_byte(outfile, byte) 78 linecount = linecount + 1 79 if linecount > 20: 80 outfile.write(b"\n ") 81 linecount = 0 82 if not args.binary: 83 outfile.write(b"\n0") 84 outfile.write(b"\n};\n\n") 85 except Exception: 86 # In the event that anything goes wrong, delete the output file, 87 # then re-raise the exception. Deleteing the output file should 88 # ensure that the build system doesn't try to use the stale, 89 # half-generated file. 90 os.unlink(args.output) 91 raise 92 93 94def main(): 95 args = get_args() 96 process_file(args) 97 98 99if __name__ == "__main__": 100 main() 101