53 lines
1.6 KiB
Python
53 lines
1.6 KiB
Python
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# Copyright 2015 the V8 project authors. All rights reserved.
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# Use of this source code is governed by a BSD-style license that can be
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# found in the LICENSE file.
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"""
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Sets up various automatic gyp environment variables. These are used by
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gyp_v8 and landmines.py which run at different stages of runhooks. To
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make sure settings are consistent between them, all setup should happen here.
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"""
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import os
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import sys
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SCRIPT_DIR = os.path.dirname(os.path.realpath(__file__))
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V8_ROOT = os.path.abspath(os.path.join(SCRIPT_DIR, os.pardir))
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def apply_gyp_environment(file_path=None):
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"""
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Reads in a *.gyp_env file and applies the valid keys to os.environ.
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"""
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if not file_path or not os.path.exists(file_path):
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return
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file_contents = open(file_path).read()
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try:
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file_data = eval(file_contents, {'__builtins__': None}, None)
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except SyntaxError, e:
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e.filename = os.path.abspath(file_path)
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raise
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supported_vars = ( 'V8_GYP_FILE',
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'V8_GYP_SYNTAX_CHECK',
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'GYP_DEFINES',
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'GYP_GENERATOR_FLAGS',
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'GYP_GENERATOR_OUTPUT', )
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for var in supported_vars:
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val = file_data.get(var)
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if val:
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if var in os.environ:
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print 'INFO: Environment value for "%s" overrides value in %s.' % (
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var, os.path.abspath(file_path)
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)
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else:
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os.environ[var] = val
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def set_environment():
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"""Sets defaults for GYP_* variables."""
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if 'SKIP_V8_GYP_ENV' not in os.environ:
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# Update the environment based on v8.gyp_env
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gyp_env_path = os.path.join(os.path.dirname(V8_ROOT), 'v8.gyp_env')
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apply_gyp_environment(gyp_env_path)
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