81 lines
2.3 KiB
Python
81 lines
2.3 KiB
Python
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#!/usr/bin/env python
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# -*- coding: utf-8 -*-
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"""
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cookiecutter.prompt
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---------------------
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Functions for prompting the user for project info.
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"""
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from __future__ import unicode_literals
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import sys
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from .compat import iteritems, read_response, is_string
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from jinja2.environment import Environment
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def prompt_for_config(context, no_input=False):
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"""
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Prompts the user to enter new config, using context as a source for the
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field names and sample values.
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:param no_input: Prompt the user at command line for manual configuration?
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"""
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cookiecutter_dict = {}
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env = Environment()
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for key, raw in iteritems(context['cookiecutter']):
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raw = raw if is_string(raw) else str(raw)
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val = env.from_string(raw).render(cookiecutter=cookiecutter_dict)
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if not no_input:
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prompt = '{0} (default is "{1}")? '.format(key, val)
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new_val = read_response(prompt).strip()
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if new_val != '':
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val = new_val
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cookiecutter_dict[key] = val
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return cookiecutter_dict
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def query_yes_no(question, default='yes'):
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"""
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Ask a yes/no question via `read_response()` and return their answer.
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:param question: A string that is presented to the user.
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:param default: The presumed answer if the user just hits <Enter>.
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It must be "yes" (the default), "no" or None (meaning
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an answer is required of the user).
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The "answer" return value is one of "yes" or "no".
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Adapted from
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http://stackoverflow.com/questions/3041986/python-command-line-yes-no-input
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http://code.activestate.com/recipes/577058/
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"""
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valid = {'yes': True, 'y': True, 'ye': True, 'no': False, 'n': False}
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if default is None:
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prompt = ' [y/n] '
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elif default == 'yes':
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prompt = ' [Y/n] '
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elif default == 'no':
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prompt = ' [y/N] '
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else:
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raise ValueError('Invalid default answer: "{0}"'.format(default))
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while True:
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sys.stdout.write(question + prompt)
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choice = read_response().lower()
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if default is not None and choice == '':
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return valid[default]
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elif choice in valid:
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return valid[choice]
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else:
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sys.stdout.write('Please respond with "yes" or "no" '
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'(or "y" or "n").\n')
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