b4628eb03f
This CL refactors the bp2build code generator to pretty print lists with a single element on one line, instead of taking up three lines, which can make BUILD files unnecessarily long. A single line singleton list is also more commonly used in BUILD files. Test: TH Change-Id: Ic9e44741bbb070c8f45925466b9ccdd0608498b2
271 lines
8.2 KiB
Go
271 lines
8.2 KiB
Go
// Copyright 2021 Google Inc. All rights reserved.
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//
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// Licensed under the Apache License, Version 2.0 (the "License");
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// you may not use this file except in compliance with the License.
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// You may obtain a copy of the License at
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//
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// http://www.apache.org/licenses/LICENSE-2.0
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//
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// Unless required by applicable law or agreed to in writing, software
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// distributed under the License is distributed on an "AS IS" BASIS,
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// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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// See the License for the specific language governing permissions and
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// limitations under the License.
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package bp2build
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import (
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"android/soong/android"
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"android/soong/cc"
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"strings"
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"testing"
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)
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const (
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// See cc/testing.go for more context
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soongCcLibraryPreamble = `
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cc_defaults {
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name: "linux_bionic_supported",
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}
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toolchain_library {
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name: "libclang_rt.builtins-x86_64-android",
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defaults: ["linux_bionic_supported"],
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vendor_available: true,
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vendor_ramdisk_available: true,
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product_available: true,
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recovery_available: true,
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native_bridge_supported: true,
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src: "",
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}`
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)
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func TestCcLibraryBp2Build(t *testing.T) {
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testCases := []struct {
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description string
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moduleTypeUnderTest string
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moduleTypeUnderTestFactory android.ModuleFactory
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moduleTypeUnderTestBp2BuildMutator func(android.TopDownMutatorContext)
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bp string
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expectedBazelTargets []string
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filesystem map[string]string
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dir string
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}{
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{
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description: "cc_library - simple example",
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moduleTypeUnderTest: "cc_library",
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moduleTypeUnderTestFactory: cc.LibraryFactory,
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moduleTypeUnderTestBp2BuildMutator: cc.CcLibraryBp2Build,
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filesystem: map[string]string{
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"android.cpp": "",
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"darwin.cpp": "",
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// Refer to cc.headerExts for the supported header extensions in Soong.
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"header.h": "",
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"header.hh": "",
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"header.hpp": "",
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"header.hxx": "",
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"header.h++": "",
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"header.inl": "",
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"header.inc": "",
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"header.ipp": "",
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"header.h.generic": "",
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"impl.cpp": "",
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"linux.cpp": "",
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"x86.cpp": "",
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"x86_64.cpp": "",
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"foo-dir/a.h": "",
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},
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bp: soongCcLibraryPreamble + `
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cc_library_headers { name: "some-headers" }
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cc_library {
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name: "foo-lib",
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srcs: ["impl.cpp"],
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cflags: ["-Wall"],
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header_libs: ["some-headers"],
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export_include_dirs: ["foo-dir"],
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ldflags: ["-Wl,--exclude-libs=bar.a"],
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arch: {
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x86: {
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ldflags: ["-Wl,--exclude-libs=baz.a"],
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srcs: ["x86.cpp"],
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},
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x86_64: {
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ldflags: ["-Wl,--exclude-libs=qux.a"],
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srcs: ["x86_64.cpp"],
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},
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},
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target: {
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android: {
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srcs: ["android.cpp"],
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},
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linux_glibc: {
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srcs: ["linux.cpp"],
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},
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darwin: {
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srcs: ["darwin.cpp"],
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},
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},
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}
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`,
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expectedBazelTargets: []string{`cc_library(
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name = "foo-lib",
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copts = ["-Wall"],
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deps = [":some-headers"],
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hdrs = [
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"header.h",
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"header.hh",
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"header.hpp",
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"header.hxx",
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"header.h++",
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"header.inl",
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"header.inc",
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"header.ipp",
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"header.h.generic",
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"foo-dir/a.h",
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],
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includes = ["foo-dir"],
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linkopts = ["-Wl,--exclude-libs=bar.a"] + select({
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"//build/bazel/platforms/arch:x86": ["-Wl,--exclude-libs=baz.a"],
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"//build/bazel/platforms/arch:x86_64": ["-Wl,--exclude-libs=qux.a"],
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"//conditions:default": [],
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}),
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srcs = ["impl.cpp"] + select({
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"//build/bazel/platforms/arch:x86": ["x86.cpp"],
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"//build/bazel/platforms/arch:x86_64": ["x86_64.cpp"],
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"//conditions:default": [],
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}) + select({
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"//build/bazel/platforms/os:android": ["android.cpp"],
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"//build/bazel/platforms/os:darwin": ["darwin.cpp"],
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"//build/bazel/platforms/os:linux": ["linux.cpp"],
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"//conditions:default": [],
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}),
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)`},
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},
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{
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description: "cc_library - trimmed example of //bionic/linker:ld-android",
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moduleTypeUnderTest: "cc_library",
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moduleTypeUnderTestFactory: cc.LibraryFactory,
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moduleTypeUnderTestBp2BuildMutator: cc.CcLibraryBp2Build,
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filesystem: map[string]string{
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"ld-android.cpp": "",
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"linked_list.h": "",
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"linker.h": "",
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"linker_block_allocator.h": "",
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"linker_cfi.h": "",
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},
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bp: soongCcLibraryPreamble + `
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cc_library_headers { name: "libc_headers" }
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cc_library {
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name: "fake-ld-android",
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srcs: ["ld_android.cpp"],
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cflags: [
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"-Wall",
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"-Wextra",
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"-Wunused",
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"-Werror",
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],
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header_libs: ["libc_headers"],
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ldflags: [
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"-Wl,--exclude-libs=libgcc.a",
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"-Wl,--exclude-libs=libgcc_stripped.a",
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"-Wl,--exclude-libs=libclang_rt.builtins-arm-android.a",
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"-Wl,--exclude-libs=libclang_rt.builtins-aarch64-android.a",
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"-Wl,--exclude-libs=libclang_rt.builtins-i686-android.a",
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"-Wl,--exclude-libs=libclang_rt.builtins-x86_64-android.a",
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],
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arch: {
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x86: {
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ldflags: ["-Wl,--exclude-libs=libgcc_eh.a"],
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},
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x86_64: {
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ldflags: ["-Wl,--exclude-libs=libgcc_eh.a"],
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},
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},
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}
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`,
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expectedBazelTargets: []string{`cc_library(
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name = "fake-ld-android",
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copts = [
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"-Wall",
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"-Wextra",
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"-Wunused",
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"-Werror",
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],
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deps = [":libc_headers"],
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hdrs = [
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"linked_list.h",
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"linker.h",
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"linker_block_allocator.h",
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"linker_cfi.h",
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],
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linkopts = [
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"-Wl,--exclude-libs=libgcc.a",
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"-Wl,--exclude-libs=libgcc_stripped.a",
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"-Wl,--exclude-libs=libclang_rt.builtins-arm-android.a",
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"-Wl,--exclude-libs=libclang_rt.builtins-aarch64-android.a",
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"-Wl,--exclude-libs=libclang_rt.builtins-i686-android.a",
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"-Wl,--exclude-libs=libclang_rt.builtins-x86_64-android.a",
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] + select({
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"//build/bazel/platforms/arch:x86": ["-Wl,--exclude-libs=libgcc_eh.a"],
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"//build/bazel/platforms/arch:x86_64": ["-Wl,--exclude-libs=libgcc_eh.a"],
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"//conditions:default": [],
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}),
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srcs = ["ld_android.cpp"],
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)`},
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},
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}
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dir := "."
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for _, testCase := range testCases {
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filesystem := make(map[string][]byte)
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toParse := []string{
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"Android.bp",
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}
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for f, content := range testCase.filesystem {
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if strings.HasSuffix(f, "Android.bp") {
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toParse = append(toParse, f)
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}
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filesystem[f] = []byte(content)
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}
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config := android.TestConfig(buildDir, nil, testCase.bp, filesystem)
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ctx := android.NewTestContext(config)
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cc.RegisterCCBuildComponents(ctx)
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ctx.RegisterModuleType("toolchain_library", cc.ToolchainLibraryFactory)
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ctx.RegisterModuleType("cc_library_headers", cc.LibraryHeaderFactory)
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ctx.RegisterModuleType(testCase.moduleTypeUnderTest, testCase.moduleTypeUnderTestFactory)
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ctx.RegisterBp2BuildMutator(testCase.moduleTypeUnderTest, testCase.moduleTypeUnderTestBp2BuildMutator)
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ctx.RegisterBp2BuildConfig(bp2buildConfig) // TODO(jingwen): make this the default for all tests
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ctx.RegisterForBazelConversion()
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_, errs := ctx.ParseFileList(dir, toParse)
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if Errored(t, testCase.description, errs) {
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continue
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}
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_, errs = ctx.ResolveDependencies(config)
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if Errored(t, testCase.description, errs) {
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continue
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}
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checkDir := dir
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if testCase.dir != "" {
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checkDir = testCase.dir
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}
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codegenCtx := NewCodegenContext(config, *ctx.Context, Bp2Build)
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bazelTargets := generateBazelTargetsForDir(codegenCtx, checkDir)
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if actualCount, expectedCount := len(bazelTargets), len(testCase.expectedBazelTargets); actualCount != expectedCount {
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t.Errorf("%s: Expected %d bazel target, got %d", testCase.description, expectedCount, actualCount)
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} else {
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for i, target := range bazelTargets {
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if w, g := testCase.expectedBazelTargets[i], target.content; w != g {
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t.Errorf(
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"%s: Expected generated Bazel target to be '%s', got '%s'",
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testCase.description,
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w,
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g,
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)
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}
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}
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}
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}
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}
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