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# Detect the native OS.
# Actually we rely on the Python "platform" module and map its output to names
# that the Catapult build understands.
from platform import machine, python_version, system
import sys
def detectOS():
'''Detects the operating system of the machine were are running on.
Raises ValueError if no known OS is detected.
'''
os = system().lower()
if os in ('linux', 'darwin', 'freebsd', 'netbsd', 'openbsd', 'gnu'):
return os
elif os.startswith('gnu/'):
# GNU userland on non-Hurd kernel, for example Debian GNU/kFreeBSD.
# For openMSX the kernel is not really relevant, so treat it like
# a generic GNU system.
return 'gnu'
elif os.startswith('mingw') or os == 'windows':
return 'mingw32'
elif os == 'sunos':
return 'solaris'
elif os == '':
# Python couldn't figure it out.
raise ValueError('Unable to detect OS')
else:
raise ValueError('Unsupported or unrecognised OS "%s"' % os)
if __name__ == '__main__':
try:
print(
' Using Python %s native system detection...' % python_version(),
file=sys.stderr
)
hostOS = detectOS()
print(' Detected OS: %s' % (hostOS,), file=sys.stderr)
print('CATAPULT_TARGET_OS=%s' % hostOS)
except ValueError as ex:
print(ex, file=sys.stderr)
sys.exit(1)
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