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

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"""Used by the make system to generate keyboard.h from info.json.
"""
from milc import cli
from qmk.decorators import automagic_keyboard, automagic_keymap
from qmk.info import info_json
from qmk.keyboard import keyboard_completer, keyboard_folder
from qmk.path import normpath
def would_populate_layout_h(keyboard):
"""Detect if a given keyboard is doing data driven layouts
"""
# Build the info.json file
kb_info_json = info_json(keyboard)
for layout_name in kb_info_json['layouts']:
if kb_info_json['layouts'][layout_name]['c_macro']:
continue
if 'matrix' not in kb_info_json['layouts'][layout_name]['layout'][0]:
cli.log.debug('%s/%s: No matrix data!', keyboard, layout_name)
continue
return True
return False
@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', type=keyboard_folder, completer=keyboard_completer, required=True, help='Keyboard to generate keyboard.h for.')
@cli.subcommand('Used by the make system to generate keyboard.h from info.json', hidden=True)
@automagic_keyboard
@automagic_keymap
def generate_keyboard_h(cli):
"""Generates the keyboard.h file.
"""
has_layout_h = would_populate_layout_h(cli.config.generate_keyboard_h.keyboard)
# Build the layouts.h file.
keyboard_h_lines = ['/* This file was generated by `qmk generate-keyboard-h`. Do not edit or copy.' ' */', '', '#pragma once', '#include "quantum.h"']
if not has_layout_h:
keyboard_h_lines.append('#pragma error("<keyboard>.h is only optional for data driven keyboards - kb.h == bad times")')
# Show the results
keyboard_h = '\n'.join(keyboard_h_lines) + '\n'
if cli.args.output:
cli.args.output.parent.mkdir(parents=True, exist_ok=True)
if cli.args.output.exists():
cli.args.output.replace(cli.args.output.parent / (cli.args.output.name + '.bak'))
cli.args.output.write_text(keyboard_h)
if not cli.args.quiet:
cli.log.info('Wrote keyboard_h to %s.', cli.args.output)
else:
print(keyboard_h)