Remove old BUILD file merging code (ea602c5a) · Commits · e / os / android_build_soong

android/allowlists/allowlists.go

+2 −0

Original line number	Diff line number	Diff line
		@@ -295,6 +295,7 @@ var (
		"external/bazel-skylib":/* recursive = */ true,
		"external/guava":/* recursive = */ true,
		"external/jsr305":/* recursive = */ true,
		"external/protobuf":/* recursive = */ false,
		"frameworks/ex/common":/* recursive = */ true,

		"packages/apps/Music":/* recursive = */ true,
		@@ -302,6 +303,7 @@ var (

		"prebuilts/bazel":/* recursive = */ true,
		"prebuilts/bundletool":/* recursive = */ true,
		"prebuilts/clang/host/linux-x86":/* recursive = */ false,
		"prebuilts/gcc":/* recursive = */ true,
		"prebuilts/build-tools":/* recursive = */ true,
		"prebuilts/jdk/jdk11":/* recursive = */ false,

android/bazel.go

+0 −26

Original line number	Diff line number	Diff line
		@@ -17,9 +17,6 @@ package android
		import (
		"bufio"
		"errors"
		"fmt"
		"io/ioutil"
		"path/filepath"
		"strings"

		"github.com/google/blueprint"
		@@ -117,7 +114,6 @@ type Bazelable interface {
		GetBazelLabel(ctx BazelConversionPathContext, module blueprint.Module) string
		ShouldConvertWithBp2build(ctx BazelConversionContext) bool
		shouldConvertWithBp2build(ctx bazelOtherModuleContext, module blueprint.Module) bool
		GetBazelBuildFileContents(c Config, path, name string) (string, error)
		ConvertWithBp2build(ctx TopDownMutatorContext)

		// namespacedVariableProps is a map from a soong config variable namespace
		@@ -498,28 +494,6 @@ func bp2buildDefaultTrueRecursively(packagePath string, config allowlists.Bp2Bui
		return false, packagePath
		}

		// GetBazelBuildFileContents returns the file contents of a hand-crafted BUILD file if available or
		// an error if there are errors reading the file.
		// TODO(b/181575318): currently we append the whole BUILD file, let's change that to do
		// something more targeted based on the rule type and target.
		func (b *BazelModuleBase) GetBazelBuildFileContents(c Config, path, name string) (string, error) {
		if !strings.Contains(b.HandcraftedLabel(), path) {
		return "", fmt.Errorf("%q not found in bazel_module.label %q", path, b.HandcraftedLabel())
		}
		name = filepath.Join(path, name)
		f, err := c.fs.Open(name)
		if err != nil {
		return "", err
		}
		defer f.Close()

		data, err := ioutil.ReadAll(f)
		if err != nil {
		return "", err
		}
		return string(data[:]), nil
		}

		func registerBp2buildConversionMutator(ctx RegisterMutatorsContext) {
		ctx.TopDown("bp2build_conversion", convertWithBp2build).Parallel()
		}

bp2build/build_conversion.go

+2 −76

Original line number	Diff line number	Diff line
		@@ -43,7 +43,6 @@ type BazelTarget struct {
		content string
		ruleClass string
		bzlLoadLocation string
		handcrafted bool
		}

		// IsLoadedFromStarlark determines if the BazelTarget's rule class is loaded from a .bzl file,
		@@ -65,25 +64,9 @@ func (t BazelTarget) Label() string {
		// BazelTargets is a typedef for a slice of BazelTarget objects.
		type BazelTargets []BazelTarget

		// HasHandcraftedTargetsreturns true if a set of bazel targets contain
		// handcrafted ones.
		func (targets BazelTargets) hasHandcraftedTargets() bool {
		for _, target := range targets {
		if target.handcrafted {
		return true
		}
		}
		return false
		}

		// sort a list of BazelTargets in-place, by name, and by generated/handcrafted types.
		// sort a list of BazelTargets in-place by name
		func (targets BazelTargets) sort() {
		sort.Slice(targets, func(i, j int) bool {
		if targets[i].handcrafted != targets[j].handcrafted {
		// Handcrafted targets will be generated after the bp2build generated targets.
		return targets[j].handcrafted
		}
		// This will cover all bp2build generated targets.
		return targets[i].name < targets[j].name
		})
		}
		@@ -94,18 +77,6 @@ func (targets BazelTargets) sort() {
		func (targets BazelTargets) String() string {
		var res string
		for i, target := range targets {
		// There is only at most 1 handcrafted "target", because its contents
		// represent the entire BUILD file content from the tree. See
		// build_conversion.go#getHandcraftedBuildContent for more information.
		//
		// Add a header to make it easy to debug where the handcrafted targets
		// are in a generated BUILD file.
		if target.handcrafted {
		res += "# -----------------------------\n"
		res += "# Section: Handcrafted targets. \n"
		res += "# -----------------------------\n\n"
		}

		res += target.content
		if i != len(targets)-1 {
		res += "\n\n"
		@@ -256,7 +227,6 @@ func (r conversionResults) BuildDirToTargets() map[string]BazelTargets {

		func GenerateBazelTargets(ctx *CodegenContext, generateFilegroups bool) (conversionResults, []error) {
		buildFileToTargets := make(map[string]BazelTargets)
		buildFileToAppend := make(map[string]bool)

		// Simple metrics tracking for bp2build
		metrics := CodegenMetrics{
		@@ -288,30 +258,10 @@ func GenerateBazelTargets(ctx *CodegenContext, generateFilegroups bool) (convers
		// Handle modules converted to handcrafted targets.
		//
		// Since these modules are associated with some handcrafted
		// target in a BUILD file, we simply append the entire contents
		// of that BUILD file to the generated BUILD file.
		//
		// The append operation is only done once, even if there are
		// multiple modules from the same directory associated to
		// targets in the same BUILD file (or package).
		// target in a BUILD file, we don't autoconvert them.

		// Log the module.
		metrics.AddConvertedModule(m, moduleType, Handcrafted)

		pathToBuildFile := getBazelPackagePath(b)
		if _, exists := buildFileToAppend[pathToBuildFile]; exists {
		// Append the BUILD file content once per package, at most.
		return
		}
		t, err := getHandcraftedBuildContent(ctx, b, pathToBuildFile)
		if err != nil {
		errs = append(errs, fmt.Errorf("Error converting %s: %s", bpCtx.ModuleName(m), err))
		return
		}
		targets = append(targets, t)
		// TODO(b/181575318): currently we append the whole BUILD file, let's change that to do
		// something more targeted based on the rule type and target
		buildFileToAppend[pathToBuildFile] = true
		} else if aModule, ok := m.(android.Module); ok && aModule.IsConvertedByBp2build() {
		// Handle modules converted to generated targets.

		@@ -397,29 +347,6 @@ func GenerateBazelTargets(ctx *CodegenContext, generateFilegroups bool) (convers
		}, errs
		}

		func getBazelPackagePath(b android.Bazelable) string {
		label := b.HandcraftedLabel()
		pathToBuildFile := strings.TrimPrefix(label, "//")
		pathToBuildFile = strings.Split(pathToBuildFile, ":")[0]
		return pathToBuildFile
		}

		func getHandcraftedBuildContent(ctx *CodegenContext, b android.Bazelable, pathToBuildFile string) (BazelTarget, error) {
		p := android.ExistentPathForSource(ctx, pathToBuildFile, HandcraftedBuildFileName)
		if !p.Valid() {
		return BazelTarget{}, fmt.Errorf("Could not find file %q for handcrafted target.", pathToBuildFile)
		}
		c, err := b.GetBazelBuildFileContents(ctx.Config(), pathToBuildFile, HandcraftedBuildFileName)
		if err != nil {
		return BazelTarget{}, err
		}
		// TODO(b/181575318): once this is more targeted, we need to include name, rule class, etc
		return BazelTarget{
		content: c,
		handcrafted: true,
		}, nil
		}

		func generateBazelTargets(ctx bpToBuildContext, m android.Module) []BazelTarget {
		var targets []BazelTarget
		for _, m := range m.Bp2buildTargets() {
		@@ -462,7 +389,6 @@ func generateBazelTarget(ctx bpToBuildContext, m bp2buildModule) BazelTarget {
		targetName,
		attributes,
		),
		handcrafted: false,
		}
		}

bp2build/build_conversion_test.go

+2 −11

Original line number	Diff line number	Diff line
		@@ -1299,9 +1299,7 @@ func TestCombineBuildFilesBp2buildTargets(t *testing.T) {
		name: "fg_foo",
		bazel_module: { label: "//other:fg_foo" },
		}`,
		ExpectedBazelTargets: []string{
		`// BUILD file`,
		},
		ExpectedBazelTargets: []string{},
		Filesystem: map[string]string{
		"other/BUILD.bazel": `// BUILD file`,
		},
		@@ -1319,9 +1317,7 @@ func TestCombineBuildFilesBp2buildTargets(t *testing.T) {
		name: "foo",
		bazel_module: { label: "//other:foo" },
		}`,
		ExpectedBazelTargets: []string{
		`// BUILD file`,
		},
		ExpectedBazelTargets: []string{},
		Filesystem: map[string]string{
		"other/BUILD.bazel": `// BUILD file`,
		},
		@@ -1349,7 +1345,6 @@ func TestCombineBuildFilesBp2buildTargets(t *testing.T) {
		},
		ExpectedBazelTargets: []string{
		MakeBazelTargetNoRestrictions("filegroup", "fg_foo", map[string]string{}),
		`// definition for fg_bar`,
		},
		},
		{
		@@ -1375,7 +1370,6 @@ func TestCombineBuildFilesBp2buildTargets(t *testing.T) {
		}`,
		ExpectedBazelTargets: []string{
		MakeBazelTargetNoRestrictions("filegroup", "fg_bar", map[string]string{}),
		`// BUILD file`,
		},
		},
		}
		@@ -1420,9 +1414,6 @@ func TestCombineBuildFilesBp2buildTargets(t *testing.T) {
		if actualCount != expectedCount {
		t.Errorf("Expected %d bazel target, got %d\n%s", expectedCount, actualCount, bazelTargets)
		}
		if !strings.Contains(bazelTargets.String(), "Section: Handcrafted targets. ") {
		t.Errorf("Expected string representation of bazelTargets to contain handcrafted section header.")
		}
		for i, target := range bazelTargets {
		actualContent := target.content
		expectedContent := testCase.ExpectedBazelTargets[i]

bp2build/conversion.go

+3 −11

Original line number	Diff line number	Diff line
		@@ -96,17 +96,9 @@ func createBuildFiles(buildToTargets map[string]BazelTargets, mode CodegenMode)
		# This file was automatically generated by bp2build for the Bazel migration project.
		# Feel free to edit or test it, but do not check it into your version control system.
		`
		if targets.hasHandcraftedTargets() {
		// For BUILD files with both handcrafted and generated targets,
		// don't hardcode actual content, like package() declarations.
		// Leave that responsibility to the checked-in BUILD file
		// instead.
		content += `# This file contains generated targets and handcrafted targets that are manually managed in the source tree.`
		} else {
		// For fully-generated BUILD files, hardcode the default visibility.
		content += "package(default_visibility = [\"//visibility:public\"])"
		}
		content += "\n"

		// Hardcode the default visibility.
		content += "package(default_visibility = [\"//visibility:public\"])\n"
		content += targets.LoadStatements()
		} else if mode == QueryView {
		content = soongModuleLoad