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Merge pull request #264 from pimoroni/badger2040-assets
Badger2040: Build assets from source + CMake builtin copy
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| Original file line number | Diff line number | Diff line change |
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| @@ -0,0 +1,153 @@ | ||
| #! /usr/bin/python3 | ||
| # -*- coding: utf-8 -*- | ||
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| # The MIT License (MIT) | ||
| # | ||
| # Copyright (c) 2016 Peter Hinch | ||
| # | ||
| # Permission is hereby granted, free of charge, to any person obtaining a copy | ||
| # of this software and associated documentation files (the "Software"), to deal | ||
| # in the Software without restriction, including without limitation the rights | ||
| # to use, copy, modify, merge, publish, distribute, sublicense, and/or sell | ||
| # copies of the Software, and to permit persons to whom the Software is | ||
| # furnished to do so, subject to the following conditions: | ||
| # | ||
| # The above copyright notice and this permission notice shall be included in | ||
| # all copies or substantial portions of the Software. | ||
| # | ||
| # THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR | ||
| # IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, | ||
| # FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE | ||
| # AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER | ||
| # LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, | ||
| # OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN | ||
| # THE SOFTWARE. | ||
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| import argparse | ||
| import sys | ||
| import os | ||
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| # UTILITIES FOR WRITING PYTHON SOURCECODE TO A FILE | ||
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| # ByteWriter takes as input a variable name and data values and writes | ||
| # Python source to an output stream of the form | ||
| # my_variable = b'\x01\x02\x03\x04\x05\x06\x07\x08'\ | ||
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| # Lines are broken with \ for readability. | ||
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| class ByteWriter(object): | ||
| bytes_per_line = 16 | ||
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| def __init__(self, stream, varname): | ||
| self.stream = stream | ||
| self.stream.write('{} =\\\n'.format(varname)) | ||
| self.bytecount = 0 # For line breaks | ||
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| def _eol(self): | ||
| self.stream.write("'\\\n") | ||
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| def _eot(self): | ||
| self.stream.write("'\n") | ||
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| def _bol(self): | ||
| self.stream.write("b'") | ||
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| # Output a single byte | ||
| def obyte(self, data): | ||
| if not self.bytecount: | ||
| self._bol() | ||
| self.stream.write('\\x{:02x}'.format(data)) | ||
| self.bytecount += 1 | ||
| self.bytecount %= self.bytes_per_line | ||
| if not self.bytecount: | ||
| self._eol() | ||
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| # Output from a sequence | ||
| def odata(self, bytelist): | ||
| for byt in bytelist: | ||
| self.obyte(byt) | ||
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| # ensure a correct final line | ||
| def eot(self): # User force EOL if one hasn't occurred | ||
| if self.bytecount: | ||
| self._eot() | ||
| self.stream.write('\n') | ||
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| # PYTHON FILE WRITING | ||
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| STR01 = """# Code generated by data_to_py.py. | ||
| version = '0.1' | ||
| """ | ||
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| STR02 = """_mvdata = memoryview(_data) | ||
| def data(): | ||
| return _mvdata | ||
| """ | ||
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| def write_func(stream, name, arg): | ||
| stream.write('def {}():\n return {}\n\n'.format(name, arg)) | ||
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| def write_data(op_path, ip_path): | ||
| try: | ||
| with open(ip_path, 'rb') as ip_stream: | ||
| try: | ||
| with open(op_path, 'w') as op_stream: | ||
| write_stream(ip_stream, op_stream) | ||
| except OSError: | ||
| print("Can't open", op_path, 'for writing') | ||
| return False | ||
| except OSError: | ||
| print("Can't open", ip_path) | ||
| return False | ||
| return True | ||
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| def write_stream(ip_stream, op_stream): | ||
| op_stream.write(STR01) | ||
| op_stream.write('\n') | ||
| data = ip_stream.read() | ||
| bw_data = ByteWriter(op_stream, '_data') | ||
| bw_data.odata(data) | ||
| bw_data.eot() | ||
| op_stream.write(STR02) | ||
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| # PARSE COMMAND LINE ARGUMENTS | ||
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| def quit(msg): | ||
| print(msg) | ||
| sys.exit(1) | ||
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| DESC = """data_to_py.py | ||
| Utility to convert an arbitrary binary file to Python source. | ||
| Sample usage: | ||
| data_to_py.py image.jpg image.py | ||
| """ | ||
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| if __name__ == "__main__": | ||
| parser = argparse.ArgumentParser(__file__, description=DESC, | ||
| formatter_class=argparse.RawDescriptionHelpFormatter) | ||
| parser.add_argument('infile', type=str, help='Input file path') | ||
| parser.add_argument('outfile', type=str, | ||
| help='Path and name of output file. Must have .py extension.') | ||
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| args = parser.parse_args() | ||
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| if not os.path.isfile(args.infile): | ||
| quit("Data filename does not exist") | ||
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| if not os.path.splitext(args.outfile)[1].upper() == '.PY': | ||
| quit('Output filename must have a .py extension.') | ||
|
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| print('Writing Python file.') | ||
| if not write_data(args.outfile, args.infile): | ||
| sys.exit(1) | ||
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| print(args.outfile, 'written successfully.') |
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