Add cc_library_headers support to bp2build.
Test: Added cc_conversion_test.go. Change-Id: Id4459d2c2fa02687a374cd9fb25d687e9678218c
This commit is contained in:
Rupert Shuttleworth
parent
36eb24b3ab
commit
54e7841b90
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@ -15,12 +15,14 @@ bootstrap_go_package {
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deps: [
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"soong-android",
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"soong-bazel",
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"soong-cc",
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"soong-genrule",
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"soong-sh",
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],
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testSrcs: [
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"build_conversion_test.go",
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"bzl_conversion_test.go",
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"cc_conversion_test.go",
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"conversion_test.go",
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"testing.go",
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],
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@ -0,0 +1,221 @@
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// 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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toolchain_library {
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name: "libatomic",
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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 TestCcLibraryHeadersLoadStatement(t *testing.T) {
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testCases := []struct {
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bazelTargets BazelTargets
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expectedLoadStatements string
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}{
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{
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bazelTargets: BazelTargets{
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BazelTarget{
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name: "cc_library_headers_target",
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ruleClass: "cc_library_headers",
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// Note: no bzlLoadLocation for native rules
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},
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},
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expectedLoadStatements: ``,
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},
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}
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for _, testCase := range testCases {
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actual := testCase.bazelTargets.LoadStatements()
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expected := testCase.expectedLoadStatements
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if actual != expected {
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t.Fatalf("Expected load statements to be %s, got %s", expected, actual)
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}
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}
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}
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func TestCcLibraryHeadersBp2Build(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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preArchMutators []android.RegisterMutatorFunc
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depsMutators []android.RegisterMutatorFunc
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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_headers test",
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moduleTypeUnderTest: "cc_library_headers",
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moduleTypeUnderTestFactory: cc.LibraryHeaderFactory,
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moduleTypeUnderTestBp2BuildMutator: cc.CcLibraryHeadersBp2Build,
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filesystem: map[string]string{
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"lib-1/lib1a.h": "",
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"lib-1/lib1b.h": "",
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"lib-2/lib2a.h": "",
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"lib-2/lib2b.h": "",
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"dir-1/dir1a.h": "",
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"dir-1/dir1b.h": "",
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"dir-2/dir2a.h": "",
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"dir-2/dir2b.h": "",
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},
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bp: soongCcLibraryPreamble + `
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cc_library_headers {
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name: "lib-1",
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export_include_dirs: ["lib-1"],
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bazel_module: { bp2build_available: true },
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}
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cc_library_headers {
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name: "lib-2",
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export_include_dirs: ["lib-2"],
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bazel_module: { bp2build_available: true },
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}
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cc_library_headers {
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name: "foo_headers",
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export_include_dirs: ["dir-1", "dir-2"],
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header_libs: ["lib-1", "lib-2"],
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export_header_lib_headers: ["lib-1", "lib-2"],
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bazel_module: { bp2build_available: true },
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}`,
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expectedBazelTargets: []string{`cc_library_headers(
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name = "foo_headers",
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deps = [
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":lib-1",
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":lib-2",
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],
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hdrs = [
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"dir-1/dir1a.h",
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"dir-1/dir1b.h",
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"dir-2/dir2a.h",
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"dir-2/dir2b.h",
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],
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includes = [
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"dir-1",
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"dir-2",
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],
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)`, `cc_library_headers(
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name = "lib-1",
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hdrs = [
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"lib-1/lib1a.h",
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"lib-1/lib1b.h",
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],
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includes = [
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"lib-1",
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],
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)`, `cc_library_headers(
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name = "lib-2",
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hdrs = [
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"lib-2/lib2a.h",
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"lib-2/lib2b.h",
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],
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includes = [
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"lib-2",
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],
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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(testCase.moduleTypeUnderTest, testCase.moduleTypeUnderTestFactory)
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for _, m := range testCase.depsMutators {
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ctx.DepsBp2BuildMutators(m)
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}
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ctx.RegisterBp2BuildMutator(testCase.moduleTypeUnderTest, testCase.moduleTypeUnderTestBp2BuildMutator)
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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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bazelTargets := GenerateBazelTargets(ctx.Context.Context, Bp2Build)[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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@ -27,6 +27,7 @@ import (
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"github.com/google/blueprint/pathtools"
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"android/soong/android"
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"android/soong/bazel"
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"android/soong/cc/config"
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)
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@ -120,6 +121,9 @@ type LibraryProperties struct {
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// If this is an LLNDK library, properties to describe the LLNDK stubs. Will be copied from
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// the module pointed to by llndk_stubs if it is set.
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Llndk llndkLibraryProperties
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// Properties for Bazel migration purposes.
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bazel.Properties
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}
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// StaticProperties is a properties stanza to affect only attributes of the "static" variants of a
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@ -14,13 +14,18 @@
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package cc
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import "android/soong/android"
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import (
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"android/soong/android"
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"android/soong/bazel"
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)
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func init() {
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RegisterLibraryHeadersBuildComponents(android.InitRegistrationContext)
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// Register sdk member types.
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android.RegisterSdkMemberType(headersLibrarySdkMemberType)
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android.RegisterBp2BuildMutator("cc_library_headers", CcLibraryHeadersBp2Build)
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}
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var headersLibrarySdkMemberType = &librarySdkMemberType{
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@ -55,3 +60,86 @@ func prebuiltLibraryHeaderFactory() android.Module {
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library.HeaderOnly()
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return module.Init()
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}
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type bazelCcLibraryHeadersAttributes struct {
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Hdrs bazel.LabelList
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Includes bazel.LabelList
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Deps bazel.LabelList
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}
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type bazelCcLibraryHeaders struct {
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android.BazelTargetModuleBase
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bazelCcLibraryHeadersAttributes
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}
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func BazelCcLibraryHeadersFactory() android.Module {
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module := &bazelCcLibraryHeaders{}
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module.AddProperties(&module.bazelCcLibraryHeadersAttributes)
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android.InitBazelTargetModule(module)
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return module
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}
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func CcLibraryHeadersBp2Build(ctx android.TopDownMutatorContext) {
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module, ok := ctx.Module().(*Module)
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if !ok {
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// Not a cc module
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return
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}
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lib, ok := module.linker.(*libraryDecorator)
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if !ok {
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// Not a cc_library module
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return
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}
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if !lib.header() {
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// Not a cc_library_headers module
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return
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}
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if !lib.Properties.Bazel_module.Bp2build_available {
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return
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}
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// list of directories that will be added to the include path (using -I) for this
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// module and any module that links against this module.
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includeDirs := lib.flagExporter.Properties.Export_system_include_dirs
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includeDirs = append(includeDirs, lib.flagExporter.Properties.Export_include_dirs...)
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includeDirLabels := android.BazelLabelForModuleSrc(ctx, includeDirs)
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var includeDirGlobs []string
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for _, includeDir := range includeDirs {
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includeDirGlobs = append(includeDirGlobs, includeDir+"/**/*.h")
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}
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headerLabels := android.BazelLabelForModuleSrc(ctx, includeDirGlobs)
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// list of modules that should only provide headers for this module.
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var headerLibs []string
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for _, linkerProps := range lib.linkerProps() {
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if baseLinkerProps, ok := linkerProps.(*BaseLinkerProperties); ok {
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headerLibs = baseLinkerProps.Export_header_lib_headers
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break
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}
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}
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headerLibLabels := android.BazelLabelForModuleDeps(ctx, headerLibs)
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attrs := &bazelCcLibraryHeadersAttributes{
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Includes: includeDirLabels,
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Hdrs: headerLabels,
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Deps: headerLibLabels,
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}
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props := bazel.NewBazelTargetModuleProperties(
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module.Name(),
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"cc_library_headers",
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"//build/bazel/rules:cc_library_headers.bzl",
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)
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ctx.CreateBazelTargetModule(BazelCcLibraryHeadersFactory, props, attrs)
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}
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func (m *bazelCcLibraryHeaders) Name() string {
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return m.BaseModuleName()
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}
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func (m *bazelCcLibraryHeaders) GenerateAndroidBuildActions(ctx android.ModuleContext) {}
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