qmk_firmware/lib/python/qmk/cli/generate/keymap_hash.py

37 lines
1.4 KiB
Python

"""Used by the make system to generate header.
"""
from fnvhash import fnv1a_32
from milc import cli
from qmk.commands import dump_lines
from qmk.keymap import locate_keymap
from qmk.keyboard import keyboard_completer, keyboard_folder
from qmk.path import normpath
from qmk.constants import GPL2_HEADER_C_LIKE, GENERATED_HEADER_C_LIKE
@cli.argument('-o', '--output', arg_only=True, type=normpath, help='File to write to')
@cli.argument('-q', '--quiet', arg_only=True, action='store_true', help="Quiet mode, only output error messages")
@cli.argument('-kb', '--keyboard', arg_only=True, type=keyboard_folder, completer=keyboard_completer, required=True, help='Keyboard to generate header for.')
@cli.argument('-km', '--keymap', arg_only=True, required=True, help='Keymap to generate header for.')
@cli.subcommand('Used by the make system to generate header', hidden=True)
def generate_keymap_hash(cli):
# Build the header file.
header_lines = [GPL2_HEADER_C_LIKE, GENERATED_HEADER_C_LIKE, '#pragma once']
keymap_folder = locate_keymap(cli.args.keyboard, cli.args.keymap).parent
keymap_files = list(keymap_folder.glob('**/*'))
keymap_files.sort()
content = ""
for file in keymap_files:
content += file.read_text(encoding='utf-8')
val = fnv1a_32(bytes(content, 'utf-8'))
header_lines.append(f'#define KEYMAP_HASH 0x{val:08X}ul')
# Show the results
dump_lines(cli.args.output, header_lines, cli.args.quiet)