"Setup coreutils toolchain repositories and rules" # Platform names follow the platform naming convention in @aspect_bazel_lib//:lib/private/repo_utils.bzl COREUTILS_PLATFORMS = { "darwin_amd64": struct( compatible_with = [ "@platforms//os:macos", "@platforms//cpu:x86_64", ], ), "darwin_arm64": struct( compatible_with = [ "@platforms//os:macos", "@platforms//cpu:aarch64", ], ), "linux_amd64": struct( compatible_with = [ "@platforms//os:linux", "@platforms//cpu:x86_64", ], ), "linux_arm64": struct( compatible_with = [ "@platforms//os:linux", "@platforms//cpu:aarch64", ], ), "windows_amd64": struct( compatible_with = [ "@platforms//os:windows", "@platforms//cpu:x86_64", ], ), } # https://github.com/uutils/coreutils/releases # # The integrity hashes can be automatically fetched for the coreutils releases by running # `tools/coreutils_mirror_release.sh`. COREUTILS_VERSIONS = { "0.0.27": { "darwin_arm64": { "filename": "coreutils-0.0.27-aarch64-apple-darwin.tar.gz", "sha256": "sha256-BjAeGgJ8+sLCIwmokCOkfelCCLtnNRH49QcFnrDq8a4=", }, "linux_arm64": { "filename": "coreutils-0.0.27-aarch64-unknown-linux-musl.tar.gz", "sha256": "sha256-doU+ZfTyA5I8RSwDAcsOkEI3BZXFuFwBfEbg+diS06g=", }, "darwin_amd64": { "filename": "coreutils-0.0.27-x86_64-apple-darwin.tar.gz", "sha256": "sha256-1ivz4ue8/ROUYhPh22Bg2ASPgC6MKMulR52nLgZvTBo=", }, "windows_amd64": { "filename": "coreutils-0.0.27-x86_64-pc-windows-msvc.zip", "sha256": "sha256-DC4H+hQX51aHoFudV39n7u217NDcNL9AiG4o4edboV0=", }, "linux_amd64": { "filename": "coreutils-0.0.27-x86_64-unknown-linux-musl.tar.gz", "sha256": "sha256-tM+hJd16cCjflJyMwsCaevPYZMiBkIKZJm7/XC+760w=", }, }, "0.0.26": { "darwin_arm64": { "filename": "coreutils-0.0.26-aarch64-apple-darwin.tar.gz", "sha256": "sha256-/A6CNYWmvOwPW443pH+wO+VtzDFgussN1hRGuANnFOU=", }, "linux_arm64": { "filename": "coreutils-0.0.26-aarch64-unknown-linux-musl.tar.gz", "sha256": "sha256-9zGLFOMDjUDbraDY/hrE5zFJ0O+QYrvx2wHk3Gw3q/A=", }, "darwin_amd64": { # TODO: remove this version_override hack once 0.0.27 is releases and contains a darwin arm binary "version_override": "0.0.23", "filename": "coreutils-0.0.23-x86_64-apple-darwin.tar.gz", "sha256": "sha256-SswetVAuK/hMK1r9uBvNnKj5JpSgD0bzkbsHTxOabCo=", }, "windows_amd64": { "filename": "coreutils-0.0.26-x86_64-pc-windows-msvc.zip", "sha256": "sha256-6qPkqxQZM4XBBBJ80t1uvzfZiz0gBeT/zoCdfqOO3uk=", }, "linux_amd64": { "filename": "coreutils-0.0.26-x86_64-unknown-linux-musl.tar.gz", "sha256": "sha256-QpGVp3wmHqpt5Brd/bdj7pyMQNftcihOtaRI8z2uhp0=", }, }, } DEFAULT_COREUTILS_VERSION = COREUTILS_VERSIONS.keys()[0] CoreUtilsInfo = provider( doc = "Provide info for executing coreutils", fields = { "bin": "Executable coreutils binary", }, ) def _coreutils_toolchain_impl(ctx): binary = ctx.file.binary # Make the $(COREUTILS_BIN) variable available in places like genrules. # See https://docs.bazel.build/versions/main/be/make-variables.html#custom_variables template_variables = platform_common.TemplateVariableInfo({ "COREUTILS_BIN": binary.path, }) default_info = DefaultInfo( files = depset([binary]), runfiles = ctx.runfiles(files = [binary]), ) coreutils_info = CoreUtilsInfo( bin = binary, ) # Export all the providers inside our ToolchainInfo # so the resolved_toolchain rule can grab and re-export them. toolchain_info = platform_common.ToolchainInfo( coreutils_info = coreutils_info, template_variables = template_variables, default = default_info, ) return [default_info, toolchain_info, template_variables] coreutils_toolchain = rule( implementation = _coreutils_toolchain_impl, attrs = { "binary": attr.label( mandatory = True, allow_single_file = True, ), }, ) def _coreutils_toolchains_repo_impl(rctx): # Expose a concrete toolchain which is the result of Bazel resolving the toolchain # for the execution or target platform. # Workaround for https://github.com/bazelbuild/bazel/issues/14009 starlark_content = """# @generated by @aspect_bazel_lib//lib/private:coreutils_toolchain.bzl # Forward all the providers def _resolved_toolchain_impl(ctx): toolchain_info = ctx.toolchains["@aspect_bazel_lib//lib:coreutils_toolchain_type"] return [ toolchain_info, toolchain_info.default, toolchain_info.coreutils_info, toolchain_info.template_variables, ] # Copied from java_toolchain_alias # https://cs.opensource.google/bazel/bazel/+/master:tools/jdk/java_toolchain_alias.bzl resolved_toolchain = rule( implementation = _resolved_toolchain_impl, toolchains = ["@aspect_bazel_lib//lib:coreutils_toolchain_type"], incompatible_use_toolchain_transition = True, ) """ rctx.file("defs.bzl", starlark_content) build_content = """# @generated by @aspect_bazel_lib//lib/private:coreutils_toolchain.bzl # # These can be registered in the workspace file or passed to --extra_toolchains flag. # By default all these toolchains are registered by the coreutils_register_toolchains macro # so you don't normally need to interact with these targets. load(":defs.bzl", "resolved_toolchain") resolved_toolchain(name = "resolved_toolchain", visibility = ["//visibility:public"]) """ for [platform, meta] in COREUTILS_PLATFORMS.items(): build_content += """ toolchain( name = "{platform}_toolchain", exec_compatible_with = {compatible_with}, toolchain = "@{user_repository_name}_{platform}//:coreutils_toolchain", toolchain_type = "@aspect_bazel_lib//lib:coreutils_toolchain_type", ) """.format( platform = platform, user_repository_name = rctx.attr.user_repository_name, compatible_with = meta.compatible_with, ) # Base BUILD file for this repository rctx.file("BUILD.bazel", build_content) coreutils_toolchains_repo = repository_rule( _coreutils_toolchains_repo_impl, doc = """Creates a repository with toolchain definitions for all known platforms which can be registered or selected.""", attrs = { "user_repository_name": attr.string(doc = "Base name for toolchains repository"), }, ) def _coreutils_platform_repo_impl(rctx): is_windows = rctx.attr.platform.startswith("windows_") platform = rctx.attr.platform filename = COREUTILS_VERSIONS[rctx.attr.version][platform]["filename"] version = rctx.attr.version if "version_override" in COREUTILS_VERSIONS[rctx.attr.version][platform]: version = COREUTILS_VERSIONS[rctx.attr.version][platform]["version_override"] url = "https://github.com/uutils/coreutils/releases/download/{}/{}".format( version, filename, ) rctx.download_and_extract( url = url, stripPrefix = filename.replace(".zip", "").replace(".tar.gz", ""), integrity = COREUTILS_VERSIONS[rctx.attr.version][platform]["sha256"], ) build_content = """# @generated by @aspect_bazel_lib//lib/private:coreutils_toolchain.bzl load("@aspect_bazel_lib//lib/private:coreutils_toolchain.bzl", "coreutils_toolchain") exports_files(["{0}"]) coreutils_toolchain(name = "coreutils_toolchain", binary = "{0}", visibility = ["//visibility:public"]) """.format("coreutils.exe" if is_windows else "coreutils") # Base BUILD file for this repository rctx.file("BUILD.bazel", build_content) coreutils_platform_repo = repository_rule( implementation = _coreutils_platform_repo_impl, doc = "Fetch external tools needed for coreutils toolchain", attrs = { "version": attr.string(mandatory = True, values = COREUTILS_VERSIONS.keys()), "platform": attr.string(mandatory = True, values = COREUTILS_PLATFORMS.keys()), }, )