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127 lines
4.1 KiB
Python
Executable File
127 lines
4.1 KiB
Python
Executable File
#! /usr/bin/python3
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from sys import argv
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from collections import OrderedDict
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import re
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import msgpack
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import os
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class Message:
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def __init__(self, d: dict, header_file_index: int):
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self.section = d.get("section")
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self.index = d.get("index")
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self.name = d.get("name")
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self.bytes = d["bytes"]
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self.header_file_index = header_file_index
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if __name__ == "__main__":
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if len(argv) < 3:
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print("usage: combine.py [out.bin] [out.h] [compiled...]")
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exit(1)
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_, outfile, header_file, *infiles = argv
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messages = []
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#header_files = []
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for i, infile in enumerate(infiles):
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# if infile == "--headers":
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# header_files = infiles[i+1:]
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# break
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with open(infile, "rb") as f:
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messages.extend(Message(msg, i) for msg in msgpack.unpack(f))
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with open(outfile, "wb") as f:
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# sectioned+indexed, followed by just sectioned, followed by just indexed, followed by named (unsectioned & unindexed)
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#messages.sort(key=lambda msg: bool(msg.section)<<2 + bool(msg.index))
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names = set()
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sections = []
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#messages_by_file = {}
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# this logic could probably be a bit better (i.e. read ahead, so no overwriting happens)
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def section_get_unused_id(section):
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max_index = 0
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for index in section:
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if index > max_index:
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max_index = index
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return max_index + 1
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for message in messages:
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if message.section is None:
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# allocate a section
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for section_idx, section in enumerate(sections):
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if len(section) < 0xFFF:
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break
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message.section = section_idx
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else:
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section_idx = message.section
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while len(sections) <= section_idx:
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sections.append({})
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section = sections[section_idx]
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if message.index is None:
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message.index = section_get_unused_id(section)
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if message.name:
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if message.name in names:
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print(f"error: multiple messages with name '{message.name}'")
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exit(1)
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else:
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names.add(message.name)
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# if message.header_file_index in messages_by_file:
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# messages_by_file[message.header_file_index].add(message)
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# else:
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# messages_by_file[message.header_file_index] = set([message])
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if message.index in section:
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print(f"error: multiple messages allocated to id {section_idx:02X}:{message.index:03X}")
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exit(1)
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section[message.index] = message
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f.seek((len(sections) + 1) * 4) # skip past table of contents
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section_offsets = []
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for section in sections:
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# convert dict into sorted list
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section = [msg for idx, msg in sorted(section.items(), key=lambda ele: ele[0])]
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message_offsets = []
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for message in section:
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message_offsets.append(f.tell())
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f.write(message.bytes)
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section_offset = f.tell()
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section_offsets.append(section_offset)
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for offset in message_offsets:
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f.write(offset.to_bytes(4, byteorder="big"))
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f.write(section_offset.to_bytes(4, byteorder="big"))
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# padding
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while f.tell() % 0x10 != 0:
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f.write(b'\0\0\0\0')
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f.seek(0)
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for offset in section_offsets:
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f.write(offset.to_bytes(4, byteorder="big"))
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f.write(b'\0\0\0\0')
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with open(header_file, "w") as f:
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f.write(
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f"#ifndef _MESSAGE_IDS_H_\n"
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f"#define _MESSAGE_IDS_H_\n"
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"\n"
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'#include "messages.h"\n'
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"\n"
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)
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for message in messages:
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if message.name:
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f.write(f"#define MSG_{message.name} MESSAGE_ID(0x{message.section:02X}, 0x{message.index:03X})\n")
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f.write("\n#endif\n")
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