1*635a8641SAndroid Build Coastguard Worker# Copyright 2013 The Chromium Authors. All rights reserved. 2*635a8641SAndroid Build Coastguard Worker# Use of this source code is governed by a BSD-style license that can be 3*635a8641SAndroid Build Coastguard Worker# found in the LICENSE file. 4*635a8641SAndroid Build Coastguard Worker 5*635a8641SAndroid Build Coastguard Worker 6*635a8641SAndroid Build Coastguard Workerimport sys 7*635a8641SAndroid Build Coastguard Worker 8*635a8641SAndroid Build Coastguard Worker 9*635a8641SAndroid Build Coastguard Workerdef IsWindows(): 10*635a8641SAndroid Build Coastguard Worker return sys.platform in ['win32', 'cygwin'] 11*635a8641SAndroid Build Coastguard Worker 12*635a8641SAndroid Build Coastguard Worker 13*635a8641SAndroid Build Coastguard Workerdef IsLinux(): 14*635a8641SAndroid Build Coastguard Worker return sys.platform.startswith(('linux', 'freebsd', 'netbsd', 'openbsd')) 15*635a8641SAndroid Build Coastguard Worker 16*635a8641SAndroid Build Coastguard Worker 17*635a8641SAndroid Build Coastguard Workerdef IsMac(): 18*635a8641SAndroid Build Coastguard Worker return sys.platform == 'darwin' 19*635a8641SAndroid Build Coastguard Worker 20*635a8641SAndroid Build Coastguard Worker 21*635a8641SAndroid Build Coastguard Workerdef host_os(): 22*635a8641SAndroid Build Coastguard Worker """ 23*635a8641SAndroid Build Coastguard Worker Returns a string representing the host_os of the current system. 24*635a8641SAndroid Build Coastguard Worker Possible values: 'win', 'mac', 'linux', 'unknown'. 25*635a8641SAndroid Build Coastguard Worker """ 26*635a8641SAndroid Build Coastguard Worker if IsWindows(): 27*635a8641SAndroid Build Coastguard Worker return 'win' 28*635a8641SAndroid Build Coastguard Worker elif IsLinux(): 29*635a8641SAndroid Build Coastguard Worker return 'linux' 30*635a8641SAndroid Build Coastguard Worker elif IsMac(): 31*635a8641SAndroid Build Coastguard Worker return 'mac' 32*635a8641SAndroid Build Coastguard Worker else: 33*635a8641SAndroid Build Coastguard Worker return 'unknown' 34