1""" 2Generates package naming variables for use with rules_pkg. 3""" 4 5load("@bazel_tools//tools/cpp:toolchain_utils.bzl", "find_cpp_toolchain") 6load("@rules_pkg//pkg:providers.bzl", "PackageVariablesInfo") 7load(":protobuf_version.bzl", "PROTOC_VERSION") 8 9def _package_naming_impl(ctx): 10 values = {} 11 values["version"] = PROTOC_VERSION 12 13 # infer from the current cpp toolchain. 14 toolchain = find_cpp_toolchain(ctx) 15 cpu = toolchain.cpu 16 system_name = toolchain.target_gnu_system_name 17 18 # rename cpus to match what we want artifacts to be 19 if cpu == "systemz": 20 cpu = "s390_64" 21 elif cpu == "aarch64": 22 cpu = "aarch_64" 23 elif cpu == "ppc64": 24 cpu = "ppcle_64" 25 26 # use the system name to determine the os and then create platform names 27 if "apple" in system_name: 28 values["platform"] = "osx-" + cpu 29 elif "linux" in system_name: 30 values["platform"] = "linux-" + cpu 31 elif "mingw" in system_name: 32 if cpu == "x86_64": 33 values["platform"] = "win64" 34 else: 35 values["platform"] = "win32" 36 else: 37 values["platform"] = "unknown" 38 39 return PackageVariablesInfo(values = values) 40 41package_naming = rule( 42 implementation = _package_naming_impl, 43 attrs = { 44 # Necessary data dependency for find_cpp_toolchain. 45 "_cc_toolchain": attr.label(default = Label("@bazel_tools//tools/cpp:current_cc_toolchain")), 46 }, 47 toolchains = ["@bazel_tools//tools/cpp:toolchain_type"], 48) 49