in build/gyp_helper.py [0:0]
def apply_gyp_environment_from_file(file_path):
"""Reads in a *.gyp_env file and applies the valid keys to os.environ."""
if not os.path.exists(file_path):
return
with open(file_path, 'rU') as f:
file_contents = f.read()
try:
file_data = eval(file_contents, {'__builtins__': None}, None)
except SyntaxError, e:
e.filename = os.path.abspath(file_path)
raise
supported_vars = (
'CC',
'CC_wrapper',
'CC.host_wrapper',
'CHROMIUM_GYP_FILE',
'CHROMIUM_GYP_SYNTAX_CHECK',
'CXX',
'CXX_wrapper',
'CXX.host_wrapper',
'GYP_DEFINES',
'GYP_GENERATOR_FLAGS',
'GYP_CROSSCOMPILE',
'GYP_GENERATOR_OUTPUT',
'GYP_GENERATORS',
'GYP_INCLUDE_FIRST',
'GYP_INCLUDE_LAST',
'GYP_MSVS_VERSION',
)
for var in supported_vars:
file_val = file_data.get(var)
if file_val:
if var in os.environ:
behavior = 'replaces'
if var == 'GYP_DEFINES':
result = file_val + ' ' + os.environ[var]
behavior = 'merges with, and individual components override,'
else:
result = os.environ[var]
print 'INFO: Environment value for "%s" %s value in %s' % (
var, behavior, os.path.abspath(file_path)
)
string_padding = max(len(var), len(file_path), len('result'))
print ' %s: %s' % (var.rjust(string_padding), os.environ[var])
print ' %s: %s' % (file_path.rjust(string_padding), file_val)
os.environ[var] = result
else:
os.environ[var] = file_val