| #!/usr/bin/env python |
| # Copyright 2015 The Chromium Authors. All rights reserved. |
| # Use of this source code is governed by a BSD-style license that can be |
| # found in the LICENSE file. |
| |
| import argparse |
| import hashlib |
| import os |
| import sys |
| |
| def main(): |
| """Command line utility to embed file in a C executable.""" |
| parser = argparse.ArgumentParser( |
| description='Generate a source file to embed the content of a file') |
| |
| parser.add_argument('source') |
| parser.add_argument('out_dir') |
| parser.add_argument('namespace') |
| parser.add_argument('variable') |
| |
| opts = parser.parse_args() |
| |
| if not os.path.exists(opts.out_dir): |
| os.makedirs(opts.out_dir) |
| |
| header = os.path.join(opts.out_dir, '%s.h' % opts.variable) |
| c_file = os.path.join(opts.out_dir, '%s.cc' % opts.variable) |
| namespaces = opts.namespace.split('::') |
| |
| data = None |
| with open(opts.source, "rb") as f: |
| data = f.read() |
| |
| with open(header, "w") as f: |
| f.write('// Generated file. Do not modify.\n') |
| f.write('\n') |
| f.write('#include "mojo/tools/embed/data.h"\n') |
| f.write('\n') |
| for n in namespaces: |
| f.write('namespace %s {\n' % n) |
| f.write('extern const mojo::embed::Data %s;\n' % opts.variable); |
| for n in reversed(namespaces): |
| f.write('} // namespace %s\n' % n) |
| |
| sha1hash = hashlib.sha1(data).hexdigest() |
| values = ["0x%02x" % ord(c) for c in data] |
| lines = [] |
| chunk_size = 16 |
| for i in range(0, len(values), chunk_size): |
| lines.append(" " + ", ".join(values[i: i + chunk_size])) |
| |
| with open(c_file, "w") as f: |
| f.write('// Generated file. Do not modify.\n') |
| f.write('\n') |
| f.write('#include "mojo/tools/embed/data.h"\n') |
| f.write('\n') |
| for n in namespaces: |
| f.write('namespace %s {\n' % n) |
| f.write('namespace {\n') |
| f.write("const char data[%d] = {\n" % len(data)) |
| f.write(",\n".join(lines)) |
| f.write("\n};\n") |
| f.write('} // namespace\n') |
| f.write('\n') |
| f.write('extern const mojo::embed::Data %s;\n' % opts.variable); |
| f.write('const mojo::embed::Data %s = {\n' % opts.variable); |
| f.write(' "%s",\n' % sha1hash) |
| f.write(' data,\n') |
| f.write(' sizeof(data)\n') |
| f.write('};\n'); |
| f.write('\n') |
| for n in reversed(namespaces): |
| f.write('} // namespace %s\n' % n) |
| |
| if __name__ == '__main__': |
| main() |