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envoy_build_system.bzl
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# The main Envoy bazel file. Load this file for all Envoy-specific build macros
# and rules that you'd like to use in your BUILD files.
load("@rules_foreign_cc//tools/build_defs:cmake.bzl", "cmake_external")
load(":envoy_binary.bzl", _envoy_cc_binary = "envoy_cc_binary")
load(":envoy_internal.bzl", "envoy_external_dep_path")
load(
":envoy_library.bzl",
_envoy_basic_cc_library = "envoy_basic_cc_library",
_envoy_cc_extension = "envoy_cc_extension",
_envoy_cc_library = "envoy_cc_library",
_envoy_cc_posix_library = "envoy_cc_posix_library",
_envoy_cc_win32_library = "envoy_cc_win32_library",
_envoy_include_prefix = "envoy_include_prefix",
_envoy_proto_library = "envoy_proto_library",
)
load(
":envoy_select.bzl",
_envoy_select_boringssl = "envoy_select_boringssl",
_envoy_select_google_grpc = "envoy_select_google_grpc",
_envoy_select_hot_restart = "envoy_select_hot_restart",
_envoy_select_wasm = "envoy_select_wasm",
_envoy_select_wasm_v8 = "envoy_select_wasm_v8",
_envoy_select_wasm_wasmtime = "envoy_select_wasm_wasmtime",
_envoy_select_wasm_wavm = "envoy_select_wasm_wavm",
)
load(
":envoy_test.bzl",
_envoy_benchmark_test = "envoy_benchmark_test",
_envoy_cc_benchmark_binary = "envoy_cc_benchmark_binary",
_envoy_cc_fuzz_test = "envoy_cc_fuzz_test",
_envoy_cc_mock = "envoy_cc_mock",
_envoy_cc_test = "envoy_cc_test",
_envoy_cc_test_binary = "envoy_cc_test_binary",
_envoy_cc_test_library = "envoy_cc_test_library",
_envoy_py_test_binary = "envoy_py_test_binary",
_envoy_sh_test = "envoy_sh_test",
)
load(
"@envoy_build_config//:extensions_build_config.bzl",
"EXTENSION_PACKAGE_VISIBILITY",
)
load("@bazel_skylib//rules:common_settings.bzl", "bool_flag")
def envoy_package():
native.package(default_visibility = ["//visibility:public"])
def envoy_extension_package(enabled_default = True):
native.package(default_visibility = EXTENSION_PACKAGE_VISIBILITY)
bool_flag(
name = "enabled",
build_setting_default = enabled_default,
)
native.config_setting(
name = "is_enabled",
flag_values = {":enabled": "True"},
)
# A genrule variant that can output a directory. This is useful when doing things like
# generating a fuzz corpus mechanically.
def _envoy_directory_genrule_impl(ctx):
tree = ctx.actions.declare_directory(ctx.attr.name + ".outputs")
ctx.actions.run_shell(
inputs = ctx.files.srcs,
tools = ctx.files.tools,
outputs = [tree],
command = "mkdir -p " + tree.path + " && " + ctx.expand_location(ctx.attr.cmd),
env = {"GENRULE_OUTPUT_DIR": tree.path},
)
return [DefaultInfo(files = depset([tree]))]
envoy_directory_genrule = rule(
implementation = _envoy_directory_genrule_impl,
attrs = {
"srcs": attr.label_list(),
"cmd": attr.string(),
"tools": attr.label_list(),
},
)
# External CMake C++ library targets should be specified with this function. This defaults
# to building the dependencies with ninja
def envoy_cmake_external(
name,
cache_entries = {},
debug_cache_entries = {},
cmake_options = ["-GNinja"],
make_commands = ["ninja -v", "ninja -v install"],
lib_source = "",
postfix_script = "",
static_libraries = [],
copy_pdb = False,
pdb_name = "",
cmake_files_dir = "$BUILD_TMPDIR/CMakeFiles",
generate_crosstool_file = False,
**kwargs):
cache_entries.update({"CMAKE_BUILD_TYPE": "Bazel"})
cache_entries_debug = dict(cache_entries)
cache_entries_debug.update(debug_cache_entries)
pf = ""
if copy_pdb:
# TODO: Add iterator of the first list presented of these options;
# static_libraries[.pdb], pdb_names, name[.pdb] files
if pdb_name == "":
pdb_name = name
copy_command = "cp {cmake_files_dir}/{pdb_name}.dir/{pdb_name}.pdb $INSTALLDIR/lib/{pdb_name}.pdb".format(cmake_files_dir = cmake_files_dir, pdb_name = pdb_name)
if postfix_script != "":
copy_command = copy_command + " && " + postfix_script
pf = select({
"@envoy//bazel:windows_dbg_build": copy_command,
"//conditions:default": postfix_script,
})
else:
pf = postfix_script
cmake_external(
name = name,
cache_entries = select({
"@envoy//bazel:dbg_build": cache_entries_debug,
"//conditions:default": cache_entries,
}),
cmake_options = cmake_options,
# TODO(lizan): Make this always true
generate_crosstool_file = select({
"@envoy//bazel:windows_x86_64": True,
"//conditions:default": generate_crosstool_file,
}),
lib_source = lib_source,
make_commands = make_commands,
postfix_script = pf,
static_libraries = static_libraries,
**kwargs
)
# Used to select a dependency that has different implementations on POSIX vs Windows.
# The platform-specific implementations should be specified with envoy_cc_posix_library
# and envoy_cc_win32_library respectively
def envoy_cc_platform_dep(name):
return select({
"@envoy//bazel:windows_x86_64": [name + "_win32"],
"//conditions:default": [name + "_posix"],
})
# Envoy proto descriptor targets should be specified with this function.
# This is used for testing only.
def envoy_proto_descriptor(name, out, srcs = [], external_deps = []):
input_files = ["$(location " + src + ")" for src in srcs]
include_paths = [".", native.package_name()]
if "api_httpbody_protos" in external_deps:
srcs.append("@com_google_googleapis//google/api:httpbody.proto")
include_paths.append("external/com_google_googleapis")
if "http_api_protos" in external_deps:
srcs.append("@com_google_googleapis//google/api:annotations.proto")
srcs.append("@com_google_googleapis//google/api:http.proto")
include_paths.append("external/com_google_googleapis")
if "well_known_protos" in external_deps:
srcs.append("@com_google_protobuf//:well_known_protos")
include_paths.append("external/com_google_protobuf/src")
options = ["--include_imports"]
options.extend(["-I" + include_path for include_path in include_paths])
options.append("--descriptor_set_out=$@")
cmd = "$(location //external:protoc) " + " ".join(options + input_files)
native.genrule(
name = name,
srcs = srcs,
outs = [out],
cmd = cmd,
tools = ["//external:protoc"],
)
# Dependencies on Google grpc should be wrapped with this function.
def envoy_google_grpc_external_deps():
return envoy_select_google_grpc([envoy_external_dep_path("grpc")])
# Here we create wrappers for each of the public targets within the separate bazel
# files loaded above. This maintains envoy_build_system.bzl as the preferred import
# for BUILD files that need these build macros. Do not use the imports directly
# from the other bzl files (e.g. envoy_select.bzl, envoy_binary.bzl, etc.)
# Select wrappers (from envoy_select.bzl)
envoy_select_boringssl = _envoy_select_boringssl
envoy_select_google_grpc = _envoy_select_google_grpc
envoy_select_hot_restart = _envoy_select_hot_restart
envoy_select_wasm = _envoy_select_wasm
envoy_select_wasm_wavm = _envoy_select_wasm_wavm
envoy_select_wasm_wasmtime = _envoy_select_wasm_wasmtime
envoy_select_wasm_v8 = _envoy_select_wasm_v8
# Binary wrappers (from envoy_binary.bzl)
envoy_cc_binary = _envoy_cc_binary
# Library wrappers (from envoy_library.bzl)
envoy_basic_cc_library = _envoy_basic_cc_library
envoy_cc_extension = _envoy_cc_extension
envoy_cc_library = _envoy_cc_library
envoy_cc_posix_library = _envoy_cc_posix_library
envoy_cc_win32_library = _envoy_cc_win32_library
envoy_include_prefix = _envoy_include_prefix
envoy_proto_library = _envoy_proto_library
# Test wrappers (from envoy_test.bzl)
envoy_cc_fuzz_test = _envoy_cc_fuzz_test
envoy_cc_mock = _envoy_cc_mock
envoy_cc_test = _envoy_cc_test
envoy_cc_test_binary = _envoy_cc_test_binary
envoy_cc_test_library = _envoy_cc_test_library
envoy_cc_benchmark_binary = _envoy_cc_benchmark_binary
envoy_benchmark_test = _envoy_benchmark_test
envoy_py_test_binary = _envoy_py_test_binary
envoy_sh_test = _envoy_sh_test