src/tools/xcode/actoolwrapper/README - bazel - Git at Google

 actoolwrapper runs actool, which compiles asset catalog files.
 actoolwrapper then zips up the output, because actool returns an unpredictable
 number of output files.

 actool only runs on Darwin, so actoolwrapper only runs on Darwin.
	actoolwrapper runs actool, which compiles asset catalog files.
	actoolwrapper then zips up the output, because actool returns an unpredictable
	number of output files.

	actool only runs on Darwin, so actoolwrapper only runs on Darwin.