Revert "Build notice files from license metadata."

This reverts commit 43c2dcaef6.

Reason for revert: suspect build break

Bug: 227682036

Test: TARGET_BUILD_VARIANT=userdebug UNBUNDLED_BUILD_SDKS_FROM_SOURCE=true vendor/google/build/mainline_modules_bundles.sh -j97


Change-Id: Ibfb8b4fefc264f52f32ba661c269a9cd625d800a

java/app.go

@@ -19,6 +19,7 @@ package java
 
 import (
 	"path/filepath"
+	"sort"
 	"strings"
 
 	"github.com/google/blueprint"
@@ -163,6 +164,8 @@ type AndroidApp struct {
 
 	additionalAaptFlags []string
 
+	noticeOutputs android.NoticeOutputs
+
 	overriddenManifestPackageName string
 
 	android.ApexBundleDepsInfo
@@ -520,6 +523,53 @@ func (a *AndroidApp) JNISymbolsInstalls(installPath string) android.RuleBuilderI
 	return jniSymbols
 }
 
+func (a *AndroidApp) noticeBuildActions(ctx android.ModuleContext) {
+	// Collect NOTICE files from all dependencies.
+	seenModules := make(map[android.Module]bool)
+	noticePathSet := make(map[android.Path]bool)
+
+	ctx.WalkDeps(func(child android.Module, parent android.Module) bool {
+		// Have we already seen this?
+		if _, ok := seenModules[child]; ok {
+			return false
+		}
+		seenModules[child] = true
+
+		// Skip host modules.
+		if child.Target().Os.Class == android.Host {
+			return false
+		}
+
+		paths := child.(android.Module).NoticeFiles()
+		if len(paths) > 0 {
+			for _, path := range paths {
+				noticePathSet[path] = true
+			}
+		}
+		return true
+	})
+
+	// If the app has one, add it too.
+	if len(a.NoticeFiles()) > 0 {
+		for _, path := range a.NoticeFiles() {
+			noticePathSet[path] = true
+		}
+	}
+
+	if len(noticePathSet) == 0 {
+		return
+	}
+	var noticePaths []android.Path
+	for path := range noticePathSet {
+		noticePaths = append(noticePaths, path)
+	}
+	sort.Slice(noticePaths, func(i, j int) bool {
+		return noticePaths[i].String() < noticePaths[j].String()
+	})
+
+	a.noticeOutputs = android.BuildNoticeOutput(ctx, a.installDir, a.installApkName+".apk", noticePaths)
+}
+
 // Reads and prepends a main cert from the default cert dir if it hasn't been set already, i.e. it
 // isn't a cert module reference. Also checks and enforces system cert restriction if applicable.
 func processMainCert(m android.ModuleBase, certPropValue string, certificates []Certificate, ctx android.ModuleContext) []Certificate {
@@ -586,10 +636,9 @@ func (a *AndroidApp) generateAndroidBuildActions(ctx android.ModuleContext) {
 	}
 	a.onDeviceDir = android.InstallPathToOnDevicePath(ctx, a.installDir)
 
-	noticeFile := android.PathForModuleOut(ctx, "NOTICE", "NOTICE.html.gz")
-	android.BuildNoticeHtmlOutputFromLicenseMetadata(ctx, noticeFile)
+	a.noticeBuildActions(ctx)
 	if Bool(a.appProperties.Embed_notices) || ctx.Config().IsEnvTrue("ALWAYS_EMBED_NOTICES") {
-		a.aapt.noticeFile = android.OptionalPathForPath(noticeFile)
+		a.aapt.noticeFile = a.noticeOutputs.HtmlGzOutput
 	}
 
 	a.classLoaderContexts = a.usesLibrary.classLoaderContextForUsesLibDeps(ctx)