# Generates the contents of "components_defs.mk".

from components import (

	EmulationCore, iterBuildableComponents, iterComponents,

	requiredLibrariesFor

	)

from makeutils import extractMakeVariables

from outpututils import rewriteIfChanged

import sys

def iterComponentDefs(probeMakePath):

	probeVars = extractMakeVariables(probeMakePath)

	yield '# Automatically generated by build process.'

	yield ''

	yield 'LIBRARY_COMPILE_FLAGS:='

	yield 'LIBRARY_LINK_FLAGS:='

	for libName in requiredLibrariesFor(iterBuildableComponents(probeVars)):

		yield '# %s' % libName

		yield 'LIBRARY_COMPILE_FLAGS+=' + probeVars.get(libName + '_CFLAGS', '')

		yield 'LIBRARY_LINK_FLAGS+=' + probeVars.get(libName + '_LDFLAGS', '')

	yield ''

	for component in iterComponents():

		yield 'COMPONENT_%s:=%s' % (

			component.makeName,

			str(component.canBuild(probeVars)).lower()

			)

if len(sys.argv) == 3:

	rewriteIfChanged(sys.argv[1], iterComponentDefs(sys.argv[2]))

else:

	print(

		'Usage: python3 components2defs.py COMPONENTS_DEFS PROBE_MAKE',

		file=sys.stderr

		)

	sys.exit(2)