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https://github.com/dart-lang/sdk
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68 lines
2.2 KiB
Python
68 lines
2.2 KiB
Python
# Copyright (c) 2012 The Chromium 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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# This file helps gyp_chromium and landmines correctly set up the gyp
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# environment from chromium.gyp_env on disk
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import os
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SCRIPT_DIR = os.path.dirname(os.path.realpath(__file__))
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CHROME_SRC = os.path.dirname(SCRIPT_DIR)
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def apply_gyp_environment_from_file(file_path):
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"""Reads in a *.gyp_env file and applies the valid keys to os.environ."""
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if not os.path.exists(file_path):
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return
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with open(file_path, 'rU') as f:
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file_contents = f.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 = (
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'CC',
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'CC_wrapper',
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'CC.host_wrapper',
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'CHROMIUM_GYP_FILE',
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'CHROMIUM_GYP_SYNTAX_CHECK',
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'CXX',
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'CXX_wrapper',
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'CXX.host_wrapper',
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'GYP_DEFINES',
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'GYP_GENERATOR_FLAGS',
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'GYP_CROSSCOMPILE',
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'GYP_GENERATOR_OUTPUT',
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'GYP_GENERATORS',
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'GYP_INCLUDE_FIRST',
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'GYP_INCLUDE_LAST',
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'GYP_MSVS_VERSION',
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)
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for var in supported_vars:
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file_val = file_data.get(var)
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if file_val:
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if var in os.environ:
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behavior = 'replaces'
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if var == 'GYP_DEFINES':
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result = file_val + ' ' + os.environ[var]
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behavior = 'merges with, and individual components override,'
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else:
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result = os.environ[var]
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print 'INFO: Environment value for "%s" %s value in %s' % (
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var, behavior, os.path.abspath(file_path)
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)
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string_padding = max(len(var), len(file_path), len('result'))
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print ' %s: %s' % (var.rjust(string_padding), os.environ[var])
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print ' %s: %s' % (file_path.rjust(string_padding), file_val)
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os.environ[var] = result
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else:
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os.environ[var] = file_val
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def apply_chromium_gyp_env():
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if 'SKIP_CHROMIUM_GYP_ENV' not in os.environ:
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# Update the environment based on chromium.gyp_env
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path = os.path.join(os.path.dirname(CHROME_SRC), 'chromium.gyp_env')
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apply_gyp_environment_from_file(path)
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