1# 2# Copyright (C) 2018 The Android Open Source Project 3# 4# Licensed under the Apache License, Version 2.0 (the "License"); 5# you may not use this file except in compliance with the License. 6# You may obtain a copy of the License at 7# 8# http://www.apache.org/licenses/LICENSE-2.0 9# 10# Unless required by applicable law or agreed to in writing, software 11# distributed under the License is distributed on an "AS IS" BASIS, 12# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. 13# See the License for the specific language governing permissions and 14# limitations under the License. 15 16import enum 17import sys 18 19USE_COLOR = sys.stdout.isatty() 20 21 22@enum.unique 23class Color(enum.Enum): 24 """Colors for output to console.""" 25 FRESH = '\x1b[32m' 26 STALE = '\x1b[31;1m' 27 ERROR = '\x1b[31m' 28 29 30END_COLOR = '\033[0m' 31 32 33def color_string(string: str, color: Color) -> str: 34 """Changes the color of a string when print to terminal.""" 35 if not USE_COLOR: 36 return string 37 return color.value + string + END_COLOR 38