Include license information for vendor and host snapshots

In addition to the license text files, include license kinds
information to json file. Also, use the original paths of license
text files that are copied to NOTICE_FILES directory.
This will be used when generating snapshots from the snapshot build.

Bug: 271539873
Test: m vendor-snapshot
Change-Id: I0c0427bb66f2c1fca322d5554aa66220a3b62fb3

snapshot/host_snapshot.go

@@ -96,6 +96,7 @@ func (f *hostSnapshot) CreateMetaData(ctx android.ModuleContext, fileName string
 	var jsonData []SnapshotJsonFlags
 	var metaPaths android.Paths
 
+	installedNotices := make(map[string]bool)
 	metaZipFile := android.PathForModuleOut(ctx, fileName).OutputPath
 
 	// Create JSON file based on the direct dependencies
@@ -104,12 +105,14 @@ func (f *hostSnapshot) CreateMetaData(ctx android.ModuleContext, fileName string
 		if desc != nil {
 			jsonData = append(jsonData, *desc)
 		}
-		if len(dep.EffectiveLicenseFiles()) > 0 {
-			noticeFile := android.PathForModuleOut(ctx, "NOTICE_FILES", dep.Name()+".txt").OutputPath
-			android.CatFileRule(ctx, dep.EffectiveLicenseFiles(), noticeFile)
-			metaPaths = append(metaPaths, noticeFile)
+		for _, notice := range dep.EffectiveLicenseFiles() {
+			if _, ok := installedNotices[notice.String()]; !ok {
+				installedNotices[notice.String()] = true
+				noticeOut := android.PathForModuleOut(ctx, "NOTICE_FILES", notice.String()).OutputPath
+				CopyFileToOutputPathRule(pctx, ctx, notice, noticeOut)
+				metaPaths = append(metaPaths, noticeOut)
+			}
 		}
-
 	})
 	// Sort notice paths and json data for repeatble build
 	sort.Slice(jsonData, func(i, j int) bool {
@@ -220,8 +223,7 @@ func hostJsonDesc(m android.Module) *SnapshotJsonFlags {
 	}
 
 	if path.Valid() && path.String() != "" {
-		return &SnapshotJsonFlags{
-			ModuleName:          m.Name(),
+		props := &SnapshotJsonFlags{
 			ModuleStemName:      moduleStem,
 			Filename:            path.String(),
 			Required:            append(m.HostRequiredModuleNames(), m.RequiredModuleNames()...),
@@ -229,6 +231,8 @@ func hostJsonDesc(m android.Module) *SnapshotJsonFlags {
 			RustProcMacro:       procMacro,
 			CrateName:           crateName,
 		}
+		props.InitBaseSnapshotProps(m)
+		return props
 	}
 	return nil
 }