| # 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. |
| """Defines ANSI color codes.""" |
| |
| import ctypes |
| import os |
| |
| |
| def _make_color(*codes): |
| # Apply all the requested ANSI color codes. Note that this is unbalanced |
| # with respect to the reset, which only requires a '0' to erase all codes. |
| start = ''.join('\033[{}m'.format(code) for code in codes) |
| reset = '\033[0m' |
| |
| return staticmethod(lambda msg: u'{}{}{}'.format(start, msg, reset)) |
| |
| |
| class Color: # pylint: disable=too-few-public-methods |
| """Helpers to surround text with ASCII color escapes""" |
| bold = _make_color(1) |
| red = _make_color(31) |
| bold_red = _make_color(31, 1) |
| green = _make_color(32) |
| magenta = _make_color(35, 1) |
| |
| |
| def enable_colors(): |
| if os.name == 'nt': |
| kernel32 = ctypes.windll.kernel32 |
| kernel32.SetConsoleMode(kernel32.GetStdHandle(-11), 7) |
