"""Meta and miscellaneous rules.""" load("@bazel_skylib//rules:build_test.bzl", _build_test = "build_test") load("@bazel_skylib//:bzl_library.bzl", _bzl_library = "bzl_library") build_test = _build_test bzl_library = _bzl_library rbe_platform = native.platform rbe_toolchain = native.toolchain more_shards = 4 most_shards = 8 def short_path(path): return path def proto_library(name, has_services = None, **kwargs): native.proto_library( name = name, **kwargs ) def select_arch(amd64 = "amd64", arm64 = "arm64", default = None, **kwargs): values = { "@bazel_tools//src/conditions:linux_x86_64": amd64, "@bazel_tools//src/conditions:linux_aarch64": arm64, } if default: values["//conditions:default"] = default return select(values, **kwargs) def select_system(linux = ["__linux__"], **kwargs): return linux # Only Linux supported. def default_installer(): return None def default_net_util(): return [] # Nothing needed. def coreutil(): return [] # Nothing needed. def select_native_vs_cross(native = [], amd64 = [], arm64 = [], cross = []): values = { "//tools/bazeldefs:linux_arm64_cross": arm64 + cross, "//tools/bazeldefs:linux_amd64_cross": amd64 + cross, "//conditions:default": native, } return select(values) def arch_genrule(name, srcs, outs, cmd, tools): """Runs a gen command on the target architecture. If the target architecture isn't match the host architecture, it will build a command for the target architecture and run it via qemu. The native genrule runs the command on the host architecture. Args: name: name of generated target. srcs: A list of inputs for this rule. cmd: The command to run. It has to contain " QEMU " before executed binaries. outs: A list of files generated by this rule. tools: A list of tool dependencies for this rule. """ qemu_arm64 = "qemu-aarch64-static" qemu_amd64 = "qemu-x86_64-static" srcs = select_native_vs_cross( cross = srcs + tools, native = srcs, ) tools = select_native_vs_cross( cross = [], native = tools, ) cmd = select_native_vs_cross( arm64 = cmd.replace("QEMU", qemu_arm64), amd64 = cmd.replace("QEMU", qemu_amd64), native = cmd.replace("QEMU", ""), cross = "", ) native.genrule(name = name, srcs = srcs, outs = outs, cmd = cmd, tools = tools)