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# Copyright 2020 The Pigweed Authors
#
# Licensed under the Apache License, Version 2.0 (the "License"); you may not
# use this file except in compliance with the License. You may obtain a copy of
# the License at
#
# https://www.apache.org/licenses/LICENSE-2.0
#
# Unless required by applicable law or agreed to in writing, software
# distributed under the License is distributed on an "AS IS" BASIS, WITHOUT
# WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. See the
# License for the specific language governing permissions and limitations under
# the License.
"""Facilities for accessing the current Pigweed branding"""
import operator
from typing import Optional
from pathlib import Path
import pw_cli.env
import pw_cli.color
_memoized_banner: Optional[str] = None
# This is the default banner for Pigweed.
_PIGWEED_BANNER = '''
▒█████▄ █▓ ▄███▒ ▒█ ▒█ ░▓████▒ ░▓████▒ ▒▓████▄
▒█░ █░ ░█▒ ██▒ ▀█▒ ▒█░ █ ▒█ ▒█ ▀ ▒█ ▀ ▒█ ▀█▌
▒█▄▄▄█░ ░█▒ █▓░ ▄▄░ ▒█░ █ ▒█ ▒███ ▒███ ░█ █▌
▒█▀ ░█░ ▓█ █▓ ░█░ █ ▒█ ▒█ ▄ ▒█ ▄ ░█ ▄█▌
▒█ ░█░ ░▓███▀ ▒█▓▀▓█░ ░▓████▒ ░▓████▒ ▒▓████▀
'''
def banner() -> str:
global _memoized_banner # pylint: disable=global-statement
if _memoized_banner is not None:
return _memoized_banner
parsed_env = pw_cli.env.pigweed_environment()
# Take the banner from the file PW_BRANDING_BANNER; or use the default.
banner_filename = parsed_env.PW_BRANDING_BANNER
_memoized_banner = (
Path(banner_filename).read_text()
if banner_filename
else _PIGWEED_BANNER
)
# Color the banner if requested.
banner_color = parsed_env.PW_BRANDING_BANNER_COLOR
if banner_color != '':
set_color = operator.attrgetter(banner_color)(pw_cli.color.colors())
_memoized_banner = '\n'.join(
set_color(line) for line in _memoized_banner.splitlines()
)
return _memoized_banner
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