1# Copyright 2014 The Chromium Authors. All rights reserved. 2# Use of this source code is governed by a BSD-style license that can be 3# found in the LICENSE file. 4 5""" 6Sets up various automatic gyp environment variables. These are used by 7gyp_chromium and landmines.py which run at different stages of runhooks. To 8make sure settings are consistent between them, all setup should happen here. 9""" 10 11import gyp_helper 12import os 13import sys 14import vs_toolchain 15 16def SetEnvironment(): 17 """Sets defaults for GYP_* variables.""" 18 gyp_helper.apply_chromium_gyp_env() 19 20 # Default to ninja on linux and windows, but only if no generator has 21 # explicitly been set. 22 # Also default to ninja on mac, but only when not building chrome/ios. 23 # . -f / --format has precedence over the env var, no need to check for it 24 # . set the env var only if it hasn't been set yet 25 # . chromium.gyp_env has been applied to os.environ at this point already 26 if sys.platform.startswith(('linux', 'win', 'freebsd', 'darwin')) and \ 27 not os.environ.get('GYP_GENERATORS'): 28 os.environ['GYP_GENERATORS'] = 'ninja' 29 30 vs_toolchain.SetEnvironmentAndGetRuntimeDllDirs() 31