compress_dictionary.py

import zlib

filename = "./src/config_dictionary.json"
outfile = "./src/compressed_dict.h"
with open(filename,"r") as f:
    string = ""
    for line in f.readlines():
        string+=line.lstrip().rstrip()
print(string)
print(f'uncompressed length: {len(string)}')
compressed = zlib.compress(string.encode())
print(f'compressed length: {len(compressed)}')

byte_string = ""
for b in compressed:
    byte_string+=f"{hex(b)}, "

decl_string = f"#define CONFIG_DICT_LENGTH {len(compressed)}\n#define CONFIG_DICT const uint8_t config[CONFIG_DICT_LENGTH] = {{{byte_string.strip(', ')}}};\n\n"

header = \
'''\
//Do not edit this file
//This file is machine generated by compress_dictionary.py
//Any changes made here will be lost
//Make any changes in either the compress_dictionary.py script, config_dictionary.json, or KlipperCommander.h

#ifndef _COMPRESSED_DICT
#define _COMPRESSED_DICT
#include "Arduino.h"\n
'''

footer = \
'''\
#endif
'''

with open(outfile, 'w') as f:
    f.write(header)
    f.write(decl_string)
    f.write(footer)