Build.zig do step if certain directory changes?

Im trying to migrate my project to the new build system. Is there a way to say “rerun this step if a directory and its content changes”? This is my code rn, java-sources.zig just walks the first arg dir and writes the abs path of it into the second arg. const java_sources = b.addRunArtifact(b.addExecutable(.{ .name = "java-sources", .root_module = b.createModule(.{ .root_source_file = b.path("src/build-tools/java-sources.zig"), .target = target, .optimize = .deb...