67 lines
		
	
	
		
			2.7 KiB
		
	
	
	
		
			Python
		
	
	
	
	
	
			
		
		
	
	
			67 lines
		
	
	
		
			2.7 KiB
		
	
	
	
		
			Python
		
	
	
	
	
	
"""Generate a keymap.json from a keymap.c file.
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"""
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import json
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from argcomplete.completers import FilesCompleter
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from milc import cli
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import qmk.keymap
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import qmk.path
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from qmk.json_encoders import InfoJSONEncoder
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from qmk.keyboard import keyboard_completer, keyboard_folder
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from qmk.errors import CppError
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@cli.argument('--no-cpp', arg_only=True, action='store_false', help='Do not use \'cpp\' on keymap.c')
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@cli.argument('-o', '--output', arg_only=True, type=qmk.path.normpath, help='File to write to')
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@cli.argument('-q', '--quiet', arg_only=True, action='store_true', help="Quiet mode, only output error messages")
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@cli.argument('-kb', '--keyboard', arg_only=True, type=keyboard_folder, completer=keyboard_completer, required=True, help='The keyboard\'s name')
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@cli.argument('-km', '--keymap', arg_only=True, required=True, help='The keymap\'s name')
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@cli.argument('filename', arg_only=True, completer=FilesCompleter('.c'), help='keymap.c file')
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@cli.subcommand('Creates a keymap.json from a keymap.c file.')
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def c2json(cli):
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    """Generate a keymap.json from a keymap.c file.
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    This command uses the `qmk.keymap` module to generate a keymap.json from a keymap.c file. The generated keymap is written to stdout, or to a file if -o is provided.
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    """
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    if cli.args.filename != '-':
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        cli.args.filename = qmk.path.normpath(cli.args.filename)
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        # Error checking
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        if not cli.args.filename.exists():
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            cli.log.error('C file does not exist!')
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            cli.print_usage()
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            return False
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    # Environment processing
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    if cli.args.output == ('-'):
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        cli.args.output = None
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    # Parse the keymap.c
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    try:
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        keymap_json = qmk.keymap.c2json(cli.args.keyboard, cli.args.keymap, cli.args.filename, use_cpp=cli.args.no_cpp)
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    except CppError as e:
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        if cli.config.general.verbose:
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            cli.log.debug('The C pre-processor ran into a fatal error: %s', e)
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        cli.log.error('Something went wrong. Try to use --no-cpp.\nUse the CLI in verbose mode to find out more.')
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        return False
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    # Generate the keymap.json
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    try:
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        keymap_json = qmk.keymap.generate_json(keymap_json['keymap'], keymap_json['keyboard'], keymap_json['layout'], keymap_json['layers'])
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    except KeyError:
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        cli.log.error('Something went wrong. Try to use --no-cpp.')
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        return False
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    if cli.args.output:
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        cli.args.output.parent.mkdir(parents=True, exist_ok=True)
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        if cli.args.output.exists():
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            cli.args.output.replace(cli.args.output.parent / (cli.args.output.name + '.bak'))
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        cli.args.output.write_text(json.dumps(keymap_json, cls=InfoJSONEncoder))
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        if not cli.args.quiet:
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            cli.log.info('Wrote keymap to %s.', cli.args.output)
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    else:
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        print(json.dumps(keymap_json))
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