forked from forks/qmk_firmware
98 lines
3 KiB
Python
98 lines
3 KiB
Python
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"""Functions to collect user input.
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"""
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from milc import cli, format_ansi
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def yesno(prompt, *args, default=None, **kwargs):
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"""Displays prompt to the user and gets a yes or no response.
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Returns True for a yes and False for a no.
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If you add `--yes` and `--no` arguments to your program the user can answer questions by passing command line flags.
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@add_argument('-y', '--yes', action='store_true', arg_only=True, help='Answer yes to all questions.')
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@add_argument('-n', '--no', action='store_true', arg_only=True, help='Answer no to all questions.')
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Arguments:
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prompt
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The prompt to present to the user. Can include ANSI and format strings like milc's `cli.print()`.
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default
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Whether to default to a Yes or No when the user presses enter.
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None- force the user to enter Y or N
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True- Default to yes
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False- Default to no
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"""
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if not args and kwargs:
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args = kwargs
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if 'no' in cli.args and cli.args.no:
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return False
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if 'yes' in cli.args and cli.args.yes:
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return True
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if default is not None:
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if default:
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prompt = prompt + ' [Y/n] '
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else:
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prompt = prompt + ' [y/N] '
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while True:
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print()
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answer = input(format_ansi(prompt % args))
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print()
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if not answer and prompt is not None:
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return default
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elif answer.lower() in ['y', 'yes']:
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return True
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elif answer.lower() in ['n', 'no']:
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return False
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def question(prompt, *args, default=None, confirm=False, answer_type=str, **kwargs):
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"""Prompt the user to answer a question with a free-form input.
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prompt
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The prompt to present to the user. Can include ANSI and format strings like milc's `cli.print()`.
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default
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The value to return when the user doesn't enter any value. Use None to prompt until they enter a value.
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answer_type
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Specify a type function for the answer. Will re-prompt the user if the function raises any errors. Common choices here include int, float, and decimal.Decimal.
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"""
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if not args and kwargs:
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args = kwargs
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if default is not None:
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prompt = '%s [%s] ' % (prompt, default)
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while True:
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print()
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answer = input(format_ansi(prompt % args))
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print()
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if answer:
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if confirm:
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if yesno('Is the answer "%s" correct?', answer, default=True):
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try:
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return answer_type(answer)
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except Exception as e:
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cli.log.error('Could not convert answer (%s) to type %s: %s', answer, answer_type.__name__, str(e))
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else:
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try:
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return answer_type(answer)
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except Exception as e:
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cli.log.error('Could not convert answer (%s) to type %s: %s', answer, answer_type.__name__, str(e))
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elif default is not None:
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return default
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