BUILD.bazel

# Bazel (https://bazel.build/) BUILD file for Protobuf.

load("@bazel_skylib//rules:common_settings.bzl", "string_flag")
load("@rules_cc//cc:defs.bzl", "cc_binary", "cc_library", "cc_proto_library", "cc_test")
load("@rules_pkg//:mappings.bzl", "pkg_files", "strip_prefix")
load("@rules_proto//proto:defs.bzl", "proto_lang_toolchain", "proto_library")
load("@rules_java//java:defs.bzl", "java_binary", "java_lite_proto_library", "java_proto_library")
load("//build_defs:cpp_opts.bzl", "COPTS", "LINK_OPTS", "PROTOC_LINK_OPTS")
load(":protobuf.bzl", "py_proto_library")

licenses(["notice"])

exports_files(["LICENSE"])

################################################################################
# Well Known Types Proto Library Rules
#
# https://developers.google.com/protocol-buffers/docs/reference/google.protobuf
################################################################################
# These proto_library rules can be used with one of the language specific proto
# library rules i.e. java_proto_library:
#
# java_proto_library(
#   name = "any_java_proto",
#   deps = ["@com_google_protobuf//:any_proto"],
# )
################################################################################

alias(
    name = "any_proto",
    actual = "//src/google/protobuf:any_proto",
    visibility = ["//visibility:public"],
)

alias(
    name = "api_proto",
    actual = "//src/google/protobuf:api_proto",
    visibility = ["//visibility:public"],
)

alias(
    name = "duration_proto",
    actual = "//src/google/protobuf:duration_proto",
    visibility = ["//visibility:public"],
)

alias(
    name = "empty_proto",
    actual = "//src/google/protobuf:empty_proto",
    visibility = ["//visibility:public"],
)

alias(
    name = "field_mask_proto",
    actual = "//src/google/protobuf:field_mask_proto",
    visibility = ["//visibility:public"],
)

alias(
    name = "source_context_proto",
    actual = "//src/google/protobuf:source_context_proto",
    visibility = ["//visibility:public"],
)

alias(
    name = "struct_proto",
    actual = "//src/google/protobuf:struct_proto",
    visibility = ["//visibility:public"],
)

alias(
    name = "timestamp_proto",
    actual = "//src/google/protobuf:timestamp_proto",
    visibility = ["//visibility:public"],
)

alias(
    name = "type_proto",
    actual = "//src/google/protobuf:type_proto",
    visibility = ["//visibility:public"],
)

alias(
    name = "wrappers_proto",
    actual = "//src/google/protobuf:wrappers_proto",
    visibility = ["//visibility:public"],
)

# Source files: these are aliases to a filegroup, not a `proto_library`.
#
# (This is _probably_ not what you want.)
alias(
    name = "lite_well_known_protos",
    actual = "//src/google/protobuf:well_known_type_protos",  # filegroup
    visibility = ["//visibility:public"],
)

alias(
    name = "well_known_type_protos",
    actual = "//src/google/protobuf:well_known_type_protos",  # filegroup
    visibility = ["//visibility:public"],
)

# Built-in runtime protos: these are part of protobuf's internal
# implementation, but are not Well-Known Types.

alias(
    name = "descriptor_proto",
    actual = "//src/google/protobuf:descriptor_proto",  # proto_library
    visibility = ["//visibility:public"],
)

alias(
    name = "descriptor_proto_srcs",
    actual = "//src/google/protobuf:descriptor_proto_srcs",  # filegroup
    visibility = ["//visibility:public"],
)

alias(
    name = "compiler_plugin_proto",
    actual = "//src/google/protobuf/compiler:plugin_proto",  # proto_library
    visibility = ["//visibility:public"],
)

cc_library(
    name = "cc_wkt_protos",
    deprecation = "Only for backward compatibility. Do not use.",
    visibility = ["//visibility:public"],
)

# Source protos that are typically part of the protobuf runtime.
#
# DEPRECATED: Prefer :well_known_type_protos for the Well-Known Types
# (https://developers.google.com/protocol-buffers/docs/reference/google.protobuf)
# or :descriptor_proto(_srcs) for descriptor.proto (source), or
# :compiler_plugin_proto for compiler/plugin.proto.
filegroup(
    name = "well_known_protos",
    srcs = [
        ":descriptor_proto_srcs",
        ":well_known_type_protos",
        "//src/google/protobuf/compiler:plugin.proto",
    ],
    deprecation = "Prefer :well_known_type_protos instead.",
    visibility = ["//visibility:public"],
)

################################################################################
# Protocol Buffers Compiler
################################################################################

cc_binary(
    name = "protoc",
    linkopts = LINK_OPTS + PROTOC_LINK_OPTS,
    visibility = ["//visibility:public"],
    deps = ["//src/google/protobuf/compiler:protoc_lib"],
)

################################################################################
# C++ runtime
################################################################################

# The "lite" runtime works for .proto files that specify the option:
#     optimize_for = LITE_RUNTIME;
#
# The lite runtime does not include the `Reflection` APIs (including
# `Descriptor` and related types) or Well-Known Types.
#
# See also:
#     https://developers.google.com/protocol-buffers/docs/reference/cpp-generated#message
#     https://developers.google.com/protocol-buffers/docs/reference/google.protobuf
alias(
    name = "protobuf_lite",
    actual = "//src/google/protobuf:protobuf_lite",
    visibility = ["//visibility:public"],
)

cc_library(
    name = "protobuf",
    hdrs = glob([
        "src/**/*.h",
        "src/**/*.inc",
    ]),
    copts = COPTS,
    include_prefix = "google/protobuf/io",
    linkopts = LINK_OPTS,
    visibility = ["//visibility:public"],
    deps = [
        "//src/google/protobuf",
        "//src/google/protobuf/compiler:importer",
        "//src/google/protobuf/util:delimited_message_util",
        "//src/google/protobuf/util:differencer",
        "//src/google/protobuf/util:field_mask_util",
        "//src/google/protobuf/util:json_util",
        "//src/google/protobuf/util:time_util",
        "//src/google/protobuf/util:type_resolver_util",
    ],
)

# This provides just the header files for use in projects that need to build
# shared libraries for dynamic loading. This target is available until Bazel
# adds native support for such use cases.
# TODO(keveman): Remove this target once the support gets added to Bazel.
alias(
    name = "protobuf_headers",
    actual = "//src/google/protobuf:protobuf_headers",
    visibility = ["//visibility:public"],
)

################################################################################
# Java support
################################################################################

alias(
    name = "protobuf_java",
    actual = "//java/core",
    visibility = ["//visibility:public"],
)

alias(
    name = "protobuf_javalite",
    actual = "//java/lite",
    visibility = ["//visibility:public"],
)

alias(
    name = "protobuf_java_util",
    actual = "//java/util",
    visibility = ["//visibility:public"],
)

alias(
    name = "java_toolchain",
    actual = "//java/core:toolchain",
    visibility = ["//visibility:public"],
)

alias(
    name = "javalite_toolchain",
    actual = "//java/lite:toolchain",
    visibility = ["//visibility:public"],
)

################################################################################
# Python support
################################################################################

alias(
    name = "protobuf_python",
    actual = "//python:protobuf_python",
    visibility = ["//visibility:public"],
)

alias(
    name = "python_srcs",
    actual = "//python:python_srcs",
    visibility = ["@upb//:__subpackages__"],
)

alias(
    name = "python_test_srcs",
    actual = "//python:python_test_srcs",
    visibility = ["@upb//:__subpackages__"],
)

alias(
    name = "well_known_types_py_pb2",
    actual = "//python:well_known_types_py_pb2",
    visibility = ["@upb//:__subpackages__"],
)

alias(
    name = "python_common_test_protos",
    actual = "//python:python_common_test_protos",
    visibility = ["//visibility:public"],
)

alias(
    name = "python_specific_test_protos",
    actual = "//python:python_specific_test_protos",
    visibility = ["//visibility:public"],
)

proto_lang_toolchain(
    name = "cc_toolchain",
    blacklisted_protos = [
        "@com_google_protobuf//:any_proto",
        "@com_google_protobuf//:api_proto",
        "@com_google_protobuf//:compiler_plugin_proto",
        "@com_google_protobuf//:descriptor_proto",
        "@com_google_protobuf//:duration_proto",
        "@com_google_protobuf//:empty_proto",
        "@com_google_protobuf//:field_mask_proto",
        "@com_google_protobuf//:source_context_proto",
        "@com_google_protobuf//:struct_proto",
        "@com_google_protobuf//:timestamp_proto",
        "@com_google_protobuf//:type_proto",
        "@com_google_protobuf//:wrappers_proto",
    ],
    command_line = "--cpp_out=$(OUT)",
    runtime = ":protobuf",
    visibility = ["//visibility:public"],
)

alias(
    name = "objectivec",
    actual = "//objectivec",
    tags = ["manual"],
    visibility = ["//visibility:public"],
)

alias(
    name = "protobuf_objc",
    actual = "//objectivec",
    tags = ["manual"],
    visibility = ["//visibility:public"],
)

################################################################################
# Test protos
################################################################################

alias(
    name = "lite_test_protos",
    actual = "//src/google/protobuf:lite_test_protos",  # proto_library
    visibility = ["//:__subpackages__"],
)

alias(
    name = "test_proto_srcs",
    actual = "//src/google/protobuf:test_proto_srcs",  # filegroup
    visibility = ["//:__subpackages__"],
)

alias(
    name = "test_protos",
    actual = "//src/google/protobuf:test_protos",  # proto_library
    visibility = ["//:__subpackages__"],
)

# Validate generated proto source inputs:

genrule(
    name = "generated_protos",
    testonly = 1,
    srcs = ["//src/google/protobuf:test_proto_srcs"],
    outs = ["unittest_gen_import.proto"],
    cmd = "cat src/google/protobuf/unittest_import.proto > $@",
)

proto_library(
    name = "generated_protos_proto",
    testonly = 1,
    srcs = [":generated_protos"],
    deps = ["//src/google/protobuf:generic_test_protos"],
)

py_proto_library(
    name = "generated_protos_py",
    testonly = 1,
    srcs = [":generated_protos"],
    default_runtime = "",
    protoc = ":protoc",
    deps = ["//python:python_common_test_protos"],
)

################################################################################
# Conformance tests
################################################################################

alias(
    name = "conformance_test_runner",
    actual = "//conformance:conformance_test_runner",
    visibility = ["//visibility:public"],
)

alias(
    name = "test_messages_proto2_proto",
    actual = "//src/google/protobuf:test_messages_proto2_proto",  # proto_library
    visibility = ["//visibility:public"],
)

alias(
    name = "test_messages_proto3_proto",
    actual = "//src/google/protobuf:test_messages_proto3_proto",  # proto_library
    visibility = ["//visibility:public"],
)

# TODO: re-enable this test if appropriate, or replace with something that
# uses the new setup.
# sh_test(
#     name = "build_files_updated_unittest",
#     srcs = [
#         "build_files_updated_unittest.sh",
#     ],
#     data = [
#         "BUILD",
#         "cmake/extract_includes.bat.in",
#         "cmake/libprotobuf.cmake",
#         "cmake/libprotobuf-lite.cmake",
#         "cmake/libprotoc.cmake",
#         "cmake/tests.cmake",
#         "src/Makefile.am",
#         "update_file_lists.sh",
#     ],
# )

java_proto_library(
    name = "test_messages_proto2_java_proto",
    visibility = [
        "//conformance:__pkg__",
        "//java:__subpackages__",
    ],
    deps = [":test_messages_proto2_proto"],
)

java_proto_library(
    name = "test_messages_proto3_java_proto",
    visibility = [
        "//conformance:__pkg__",
        "//java:__subpackages__",
    ],
    deps = [":test_messages_proto3_proto"],
)

java_lite_proto_library(
    name = "test_messages_proto2_java_proto_lite",
    visibility = [
        "//conformance:__pkg__",
        "//java:__subpackages__",
    ],
    deps = [":test_messages_proto2_proto"],
)

java_lite_proto_library(
    name = "test_messages_proto3_java_proto_lite",
    visibility = [
        "//conformance:__pkg__",
        "//java:__subpackages__",
    ],
    deps = [":test_messages_proto3_proto"],
)

filegroup(
    name = "bzl_srcs",
    srcs = glob(["**/*.bzl"]),
    visibility = ["//visibility:public"],
)

################################################################################
# Packaging rules
################################################################################

# Files included in all source distributions
pkg_files(
    name = "common_dist_files",
    srcs = glob(
        [
            "*.bzl",
            "cmake/*.cmake",
            "cmake/*.in",
            "editors/*",

            # Several of these files are generated by autogen.sh, so using
            # glob() lets us ignore them if they are missing. (This is not good
            # practice, though.)
            "Makefile.in",
            "aclocal.m4",
            "ar-lib",
            "compile",
            "config*",
            "depcomp",
            "install-sh",
            "ltmain.sh",
            "m4/*.m4",
            "missing",
            "protobuf*.pc.in",
            "test-driver",
        ],
        allow_empty = True,
    ) + [
        "BUILD.bazel",
        "CHANGES.txt",
        "CMakeLists.txt",
        "CONTRIBUTORS.txt",
        "LICENSE",
        "Makefile.am",
        "README.md",
        "WORKSPACE",
        "autogen.sh",
        "build_files_updated_unittest.sh",
        "cmake/CMakeLists.txt",
        "cmake/README.md",
        "generate_descriptor_proto.sh",
        "maven_install.json",
        "update_file_lists.sh",
        "//third_party:BUILD.bazel",
        "//third_party:zlib.BUILD",
        "//util/python:BUILD.bazel",
    ],
    strip_prefix = strip_prefix.from_root(""),
    visibility = ["//pkg:__pkg__"],
)

# Additional files for C#
pkg_files(
    name = "csharp_dist_files",
    srcs = [
        "global.json",
    ],
    visibility = ["//pkg:__pkg__"],
)

# Additional files for ObjC
pkg_files(
    name = "objectivec_dist_files",
    srcs = [
        "Protobuf.podspec",
    ],
    visibility = ["//pkg:__pkg__"],
)