old_contents: # Copyright (c) 2015 Yubico AB
  # All rights reserved.
  #
  #   Redistribution and use in source and binary forms, with or
  #   without modification, are permitted provided that the following
  #   conditions are met:
  #
  #    1. Redistributions of source code must retain the above copyright
  #       notice, this list of conditions and the following disclaimer.
  #    2. Redistributions in binary form must reproduce the above
  #       copyright notice, this list of conditions and the following
  #       disclaimer in the documentation and/or other materials provided
  #       with the distribution.
  #
  # THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
  # "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
  # LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS
  # FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE
  # COPYRIGHT HOLDER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT,
  # INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING,
  # BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES;
  # LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER
  # CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
  # LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN
  # ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
  # POSSIBILITY OF SUCH DAMAGE.
  import functools
  import click
  import sys
  from ..util import parse_b32_key
  
  click_force_option = click.option('-f', '--force', is_flag=True,
                                    help='Confirm the action without prompting.')
  
  
  def click_callback(invoke_on_missing=False):
      def wrap(f):
          @functools.wraps(f)
          def inner(ctx, param, val):
              if not invoke_on_missing and not param.required and val is None:
                  return None
              try:
                  return f(ctx, param, val)
              except Exception as e:
                  ctx.fail('Invalid value for "{}": {}'.format(
                      param.name, str(e)))
          return inner
      return wrap
  
  
  def click_skip_on_help(f):
      @functools.wraps(f)
      def inner(*args, **kwargs):
          ctx = click.get_current_context()
          for arg in ctx.help_option_names:
              if arg in sys.argv:
                  return
          f(*args, **kwargs)
      return inner
  
  
  @click_callback()
  def click_parse_b32_key(ctx, param, val):
      return parse_b32_key(val)
  
  
  def prompt_for_touch():
      click.echo('Touch your YubiKey...')
  
new_contents: # Copyright (c) 2015 Yubico AB
  # All rights reserved.
  #
  #   Redistribution and use in source and binary forms, with or
  #   without modification, are permitted provided that the following
  #   conditions are met:
  #
  #    1. Redistributions of source code must retain the above copyright
  #       notice, this list of conditions and the following disclaimer.
  #    2. Redistributions in binary form must reproduce the above
  #       copyright notice, this list of conditions and the following
  #       disclaimer in the documentation and/or other materials provided
  #       with the distribution.
  #
  # THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
  # "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
  # LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS
  # FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE
  # COPYRIGHT HOLDER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT,
  # INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING,
  # BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES;
  # LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER
  # CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
  # LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN
  # ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
  # POSSIBILITY OF SUCH DAMAGE.
  import functools
  import click
  import sys
  from ..util import parse_b32_key
  
  click_force_option = click.option('-f', '--force', is_flag=True,
                                    help='Confirm the action without prompting.')
  
  
  def click_callback(invoke_on_missing=False):
      def wrap(f):
          @functools.wraps(f)
          def inner(ctx, param, val):
              if not invoke_on_missing and not param.required and val is None:
                  return None
              try:
                  return f(ctx, param, val)
              except Exception as e:
                  ctx.fail('Invalid value for "{}": {}'.format(
                      param.name, str(e)))
          return inner
      return wrap
  
  
  def click_skip_on_help(f):
      @functools.wraps(f)
      def inner(*args, **kwargs):
          ctx = click.get_current_context()
          for arg in ctx.help_option_names:
              if arg in sys.argv:
                  return
          f(*args, **kwargs)
      return inner
  
  
  @click_callback()
  def click_parse_b32_key(ctx, param, val):
      return parse_b32_key(val)
  
  
  def prompt_for_touch():
      try:
          click.echo('Touch your YubiKey...', err=True)
      except Exception:
          sys.stderr.write('Touch your YubiKey...\n')
  
subject: Write touch prompt to stderr.