2023-09-07 04:53:42 -04:00
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""" A repository rule use either nixpkgs or download a go toolchain / SDK """
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def _has_nix(ctx):
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return ctx.os.environ.get("BAZEL_NIX_HOST_PLATFORM", "0") == "1"
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def _gen_imports_impl(ctx):
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ctx.file("BUILD", "")
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imports_for_nix = """
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load("@io_tweag_rules_nixpkgs//nixpkgs:nixpkgs.bzl", "nixpkgs_cc_configure")
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load("@io_tweag_rules_nixpkgs//nixpkgs:toolchains/go.bzl", "nixpkgs_go_configure")
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def go_toolchain():
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2023-09-28 16:29:14 -04:00
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nixpkgs_go_configure(
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repository = "@nixpkgs",
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attribute_path = "go_1_21",
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)
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2023-09-07 04:53:42 -04:00
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def cc_toolchain():
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nixpkgs_cc_configure(repository = "@nixpkgs")
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native.register_toolchains(
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"@zig_sdk//libc_aware/toolchain:linux_amd64_gnu.2.23",
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"@zig_sdk//libc_aware/toolchain:linux_arm64_gnu.2.23",
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"@zig_sdk//libc_aware/toolchain:linux_amd64_musl",
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"@zig_sdk//libc_aware/toolchain:linux_arm64_musl",
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"@zig_sdk//toolchain:linux_amd64_gnu.2.23",
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"@zig_sdk//toolchain:linux_arm64_gnu.2.23",
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"@zig_sdk//toolchain:linux_amd64_musl",
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"@zig_sdk//toolchain:linux_arm64_musl",
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"@zig_sdk//toolchain:darwin_amd64",
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"@zig_sdk//toolchain:darwin_arm64",
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"@zig_sdk//toolchain:windows_amd64",
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)
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"""
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imports_for_non_nix = """
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load("@io_bazel_rules_go//go:deps.bzl", "go_register_toolchains")
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def go_toolchain():
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2023-09-28 16:29:14 -04:00
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go_register_toolchains(version = "1.21.1")
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2023-09-07 04:53:42 -04:00
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def cc_toolchain():
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native.register_toolchains(
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"@zig_sdk//libc_aware/toolchain:linux_amd64_gnu.2.23",
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"@zig_sdk//libc_aware/toolchain:linux_arm64_gnu.2.23",
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"@zig_sdk//libc_aware/toolchain:linux_amd64_musl",
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"@zig_sdk//libc_aware/toolchain:linux_arm64_musl",
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"@zig_sdk//toolchain:linux_amd64_gnu.2.23",
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"@zig_sdk//toolchain:linux_arm64_gnu.2.23",
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"@zig_sdk//toolchain:linux_amd64_musl",
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"@zig_sdk//toolchain:linux_arm64_musl",
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"@zig_sdk//toolchain:darwin_amd64",
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"@zig_sdk//toolchain:darwin_arm64",
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"@zig_sdk//toolchain:windows_amd64",
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)
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"""
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if _has_nix(ctx):
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ctx.file("imports.bzl", imports_for_nix)
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else:
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ctx.file("imports.bzl", imports_for_non_nix)
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_gen_imports = repository_rule(
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implementation = _gen_imports_impl,
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)
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def gen_imports():
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_gen_imports(
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name = "nixos_support",
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)
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