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use toolchains from nixpkgs (with fallback)

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Malte Poll 2023-09-07 10:53:42 +02:00 committed by Malte Poll
parent 90967d5bc2
commit 78300ee5b0
11 changed files with 166 additions and 38 deletions
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5
.bazelrc
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@ -39,6 +39,11 @@ common:linux_arm64 --platforms @zig_sdk//libc_aware/platform:linux_arm64_gnu.2.2
common:linux_amd64_static --platforms @zig_sdk//libc_aware/platform:linux_amd64_musl
common:linux_arm64_static --platforms @zig_sdk//libc_aware/platform:linux_arm64_musl
# bazel configs to explicitly target NixOS
common:nix --host_platform=@io_tweag_rules_nixpkgs//nixpkgs/platforms:host
common:nix --crosstool_top=@local_config_cc//:toolchain
common:nix --action_env=BAZEL_NIX_HOST_PLATFORM=1
# bazel config to explicitly disable stamping (hide version information at build time)
common:nostamp --nostamp --workspace_status_command=

65
WORKSPACE.bazel
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@ -1,5 +1,9 @@
workspace(name = "constellation")
load("//bazel/toolchains:skylib_deps.bzl", "skylib_deps")
skylib_deps()
# nixpkgs deps
load("//bazel/toolchains:nixpkgs_deps.bzl", "nixpkgs_deps")
@ -9,7 +13,13 @@ load("@io_tweag_rules_nixpkgs//nixpkgs:repositories.bzl", "rules_nixpkgs_depende
rules_nixpkgs_dependencies()
load("@io_tweag_rules_nixpkgs//nixpkgs:nixpkgs.bzl", "nixpkgs_flake_package")
load("@io_tweag_rules_nixpkgs//nixpkgs:nixpkgs.bzl", "nixpkgs_flake_package", "nixpkgs_git_repository", "nixpkgs_package", "nixpkgs_python_configure")
nixpkgs_git_repository(
name = "nixpkgs",
revision = "27c6a38e0aa2e57ab914ad8b500582085549c236",
sha256 = "875c2e171ab9663ff6ad2b5c75d974776682b3b4075143fc98d73c39a3b8c132",
)
nixpkgs_flake_package(
name = "mkosi",
@ -18,9 +28,19 @@ nixpkgs_flake_package(
package = "mkosi",
)
nixpkgs_package(
name = "diffutils",
repository = "@nixpkgs",
)
nixpkgs_package(
name = "systemd",
repository = "@nixpkgs",
)
load("//bazel/mkosi:mkosi_configure.bzl", "find_system_mkosi")
find_system_mkosi(name="constellation_mkosi")
find_system_mkosi(name = "constellation_mkosi")
# Python toolchain
load("//bazel/toolchains:python_deps.bzl", "python_deps")
@ -31,6 +51,14 @@ load("@rules_python//python:repositories.bzl", "py_repositories", "python_regist
py_repositories()
# if nix is installed, use nixpkgs python toolchain...
nixpkgs_python_configure(
fail_not_supported = False,
python3_attribute_path = "python311.withPackages(ps: with ps; [ numpy ])",
repository = "@nixpkgs",
)
# ... otherwise, fall back to rules_python toolchain
python_register_toolchains(
name = "python3_11",
python_version = "3.11",
@ -41,16 +69,29 @@ load("//bazel/toolchains:go_rules_deps.bzl", "go_deps")
go_deps()
load("@bazel_gazelle//:deps.bzl", "gazelle_dependencies")
load("@io_bazel_rules_go//go:deps.bzl", "go_register_toolchains", "go_rules_dependencies")
load("//bazel/toolchains:go_module_deps.bzl", "go_dependencies")
# gazelle:repository_macro bazel/toolchains/go_module_deps.bzl%go_dependencies
go_dependencies()
load("@io_bazel_rules_go//go:deps.bzl", "go_rules_dependencies")
go_rules_dependencies()
go_register_toolchains(version = "1.20.8")
local_repository(
name = "nixos-support",
path = "bazel/nixos-support",
)
load("@nixos-support//:nixos-support.bzl", "gen_imports")
gen_imports()
load("@nixos_support//:imports.bzl", "cc_toolchain", "go_toolchain")
go_toolchain()
load("@bazel_gazelle//:deps.bzl", "gazelle_dependencies")
gazelle_dependencies(go_repository_default_config = "//:WORKSPACE.bazel")
@ -111,19 +152,7 @@ load("@hermetic_cc_toolchain//toolchain:defs.bzl", zig_toolchains = "toolchains"
zig_toolchains()
register_toolchains(
"@zig_sdk//libc_aware/toolchain:linux_amd64_gnu.2.23",
"@zig_sdk//libc_aware/toolchain:linux_arm64_gnu.2.23",
"@zig_sdk//libc_aware/toolchain:linux_amd64_musl",
"@zig_sdk//libc_aware/toolchain:linux_arm64_musl",
"@zig_sdk//toolchain:linux_amd64_gnu.2.23",
"@zig_sdk//toolchain:linux_arm64_gnu.2.23",
"@zig_sdk//toolchain:linux_amd64_musl",
"@zig_sdk//toolchain:linux_arm64_musl",
"@zig_sdk//toolchain:darwin_amd64",
"@zig_sdk//toolchain:darwin_arm64",
"@zig_sdk//toolchain:windows_amd64",
)
cc_toolchain()
load("@bazel_tools//tools/build_defs/repo:http.bzl", "http_archive")

13
bazel/ci/BUILD.bazel
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@ -398,7 +398,18 @@ repo_command(
sh_template(
name = "proto_targets_check",
data = [],
data = select({
"@rules_nixpkgs_core//constraints:support_nix": [
"@diffutils//:bin/diff",
],
"//conditions:default": [],
}),
env = select({
"@rules_nixpkgs_core//constraints:support_nix": {
"DIFF": "$(rootpath @diffutils//:bin/diff)",
},
"//conditions:default": {},
}),
substitutions = {
"@@PROTO_TARGETS@@": " ".join(proto_targets()),
},

9
bazel/ci/proto_targets_check.sh.in
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@ -5,6 +5,13 @@
lib=$(realpath @@BASE_LIB@@) || exit 1
stat "${lib}" >> /dev/null || exit 1
if [[ -n ${DIFF+x} ]]; then
diff=$(realpath "${DIFF}") || exit 1
else
diff=$(command -v diff) || exit 1
fi
stat "${diff}" >> /dev/null || exit 1
# shellcheck source=../sh/lib.bash
if ! source "${lib}"; then
echo "Error: could not find import"
@ -47,7 +54,7 @@ done
protoFilePathsSorted=$(printf '%s\n' "${protoFilePaths[@]}" | sort)
writeGoProtoPathsSorted=$(printf '%s\n' "${writeGoProtoPaths[@]}" | sort)
diff=$(diff <(echo "${protoFilePathsSorted}") <(echo "${writeGoProtoPathsSorted}") || true) # don't let diff fail
diff=$($diff <(echo "${protoFilePathsSorted}") <(echo "${writeGoProtoPathsSorted}") || true) # don't let diff fail
if [[ -n ${diff} ]]; then
echo "Mismatch between proto files and 'write_go_proto_srcs' calls:"

0
bazel/nixos-support/BUILD.bazel Normal file
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0
bazel/nixos-support/WORKSPACE.bazel Normal file
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66
bazel/nixos-support/nixos-support.bzl Normal file
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@ -0,0 +1,66 @@
""" A repository rule use either nixpkgs or download a go toolchain / SDK """
def _has_nix(ctx):
return ctx.os.environ.get("BAZEL_NIX_HOST_PLATFORM", "0") == "1"
def _gen_imports_impl(ctx):
ctx.file("BUILD", "")
imports_for_nix = """
load("@io_tweag_rules_nixpkgs//nixpkgs:nixpkgs.bzl", "nixpkgs_cc_configure")
load("@io_tweag_rules_nixpkgs//nixpkgs:toolchains/go.bzl", "nixpkgs_go_configure")
def go_toolchain():
nixpkgs_go_configure(repository = "@nixpkgs")
def cc_toolchain():
nixpkgs_cc_configure(repository = "@nixpkgs")
native.register_toolchains(
"@zig_sdk//libc_aware/toolchain:linux_amd64_gnu.2.23",
"@zig_sdk//libc_aware/toolchain:linux_arm64_gnu.2.23",
"@zig_sdk//libc_aware/toolchain:linux_amd64_musl",
"@zig_sdk//libc_aware/toolchain:linux_arm64_musl",
"@zig_sdk//toolchain:linux_amd64_gnu.2.23",
"@zig_sdk//toolchain:linux_arm64_gnu.2.23",
"@zig_sdk//toolchain:linux_amd64_musl",
"@zig_sdk//toolchain:linux_arm64_musl",
"@zig_sdk//toolchain:darwin_amd64",
"@zig_sdk//toolchain:darwin_arm64",
"@zig_sdk//toolchain:windows_amd64",
)
"""
imports_for_non_nix = """
load("@io_bazel_rules_go//go:deps.bzl", "go_register_toolchains")
def go_toolchain():
go_register_toolchains(version = "1.20.8")
def cc_toolchain():
native.register_toolchains(
"@zig_sdk//libc_aware/toolchain:linux_amd64_gnu.2.23",
"@zig_sdk//libc_aware/toolchain:linux_arm64_gnu.2.23",
"@zig_sdk//libc_aware/toolchain:linux_amd64_musl",
"@zig_sdk//libc_aware/toolchain:linux_arm64_musl",
"@zig_sdk//toolchain:linux_amd64_gnu.2.23",
"@zig_sdk//toolchain:linux_arm64_gnu.2.23",
"@zig_sdk//toolchain:linux_amd64_musl",
"@zig_sdk//toolchain:linux_arm64_musl",
"@zig_sdk//toolchain:darwin_amd64",
"@zig_sdk//toolchain:darwin_arm64",
"@zig_sdk//toolchain:windows_amd64",
)
"""
if _has_nix(ctx):
ctx.file("imports.bzl", imports_for_nix)
else:
ctx.file("imports.bzl", imports_for_non_nix)
_gen_imports = repository_rule(
implementation = _gen_imports_impl,
)
def gen_imports():
_gen_imports(
name = "nixos_support",
)

1
bazel/proto/rules.bzl
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@ -83,5 +83,6 @@ def write_go_proto_srcs(name, go_proto_library, src, visibility = None):
files = {
src: generated_src,
},
diff_test = False,
visibility = visibility,
)

19
bazel/sh/def.bzl
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@ -5,7 +5,9 @@ load("@bazel_skylib//lib:shell.bzl", "shell")
def _sh_template_impl(ctx):
out_file = ctx.actions.declare_file(ctx.label.name + ".bash")
substitutions = {}
substitutions = {
"@@BASE_LIB@@": ctx.file._base_lib.path,
}
for k, v in ctx.attr.substitutions.items():
sub = ctx.expand_location(v, ctx.attr.data)
sub = ctx.expand_make_variables("substitutions", sub, {})
@ -21,6 +23,7 @@ def _sh_template_impl(ctx):
return [DefaultInfo(
files = depset([out_file]),
executable = out_file,
runfiles = ctx.runfiles(files = ctx.files.data + [ctx.file._base_lib]),
)]
_sh_template = rule(
@ -33,6 +36,10 @@ _sh_template = rule(
"template": attr.label(
allow_single_file = True,
),
"_base_lib": attr.label(
default = Label("@constellation//bazel/sh:base_lib"),
allow_single_file = True,
),
},
)
@ -46,10 +53,8 @@ def sh_template(name, **kwargs):
script_name = name + "-script"
tags = kwargs.get("tags", [])
data = kwargs.get("data", [])
data.append("//bazel/sh:base_lib")
data = kwargs.pop("data", [])
substitutions = kwargs.pop("substitutions", [])
substitutions["@@BASE_LIB@@"] = "$(rootpath //bazel/sh:base_lib)"
template = kwargs.pop("template", [])
toolchains = kwargs.pop("toolchains", [])
@ -65,6 +70,7 @@ def sh_template(name, **kwargs):
native.sh_binary(
name = name,
srcs = [script_name],
data = [script_name] + data,
**kwargs
)
@ -78,10 +84,8 @@ def sh_test_template(name, **kwargs):
script_name = name + "-script"
tags = kwargs.get("tags", [])
data = kwargs.get("data", [])
data.append("//bazel/sh:base_lib")
data = kwargs.pop("data", [])
substitutions = kwargs.pop("substitutions", [])
substitutions["@@BASE_LIB@@"] = "$(rootpath //bazel/sh:base_lib)"
template = kwargs.pop("template", [])
_sh_template(
@ -95,6 +99,7 @@ def sh_test_template(name, **kwargs):
native.sh_test(
name = name,
srcs = [script_name],
data = [script_name] + data,
**kwargs
)

11
bazel/toolchains/hermetic_cc_deps.bzl
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@ -5,17 +5,6 @@ load("@bazel_tools//tools/build_defs/repo:http.bzl", "http_archive")
def hermetic_cc_deps():
"""Loads the dependencies for hermetic_cc_toolchain."""
http_archive(
name = "bazel_skylib",
sha256 = "66ffd9315665bfaafc96b52278f57c7e2dd09f5ede279ea6d39b2be471e7e3aa",
urls = [
"https://mirror.bazel.build/github.com/bazelbuild/bazel-skylib/releases/download/1.4.2/bazel-skylib-1.4.2.tar.gz",
"https://cdn.confidential.cloud/constellation/cas/sha256/66ffd9315665bfaafc96b52278f57c7e2dd09f5ede279ea6d39b2be471e7e3aa",
"https://github.com/bazelbuild/bazel-skylib/releases/download/1.4.2/bazel-skylib-1.4.2.tar.gz",
],
type = "tar.gz",
)
http_archive(
name = "hermetic_cc_toolchain",
urls = [

15
bazel/toolchains/skylib_deps.bzl Normal file
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@ -0,0 +1,15 @@
"""bazel skylib"""
load("@bazel_tools//tools/build_defs/repo:http.bzl", "http_archive")
def skylib_deps():
http_archive(
name = "bazel_skylib",
sha256 = "66ffd9315665bfaafc96b52278f57c7e2dd09f5ede279ea6d39b2be471e7e3aa",
urls = [
"https://mirror.bazel.build/github.com/bazelbuild/bazel-skylib/releases/download/1.4.2/bazel-skylib-1.4.2.tar.gz",
"https://cdn.confidential.cloud/constellation/cas/sha256/66ffd9315665bfaafc96b52278f57c7e2dd09f5ede279ea6d39b2be471e7e3aa",
"https://github.com/bazelbuild/bazel-skylib/releases/download/1.4.2/bazel-skylib-1.4.2.tar.gz",
],
type = "tar.gz",
)