Add `assets` property for Android apps.
This property is similar to `asset_dirs`, but for individual files. This
is especially useful when the user wants to pack generated asset files
into the APK.
Bug: 257532944
Test: m nothing
Change-Id: If3062124e9dedb41315dcaf5d379803e5419b8cd
diff --git a/java/aar.go b/java/aar.go
index 85a6fbb..368f241 100644
--- a/java/aar.go
+++ b/java/aar.go
@@ -66,6 +66,9 @@
// ones.
Aapt_include_all_resources *bool
+ // list of files to use as assets.
+ Assets []string `android:"path"`
+
// list of directories relative to the Blueprints file containing assets.
// Defaults to ["assets"] if a directory called assets exists. Set to []
// to disable the default.
@@ -192,6 +195,11 @@
linkFlags = append(linkFlags, a.aaptProperties.Aaptflags...)
// Find implicit or explicit asset and resource dirs
+ assets := android.PathsRelativeToModuleSourceDir(android.SourceInput{
+ Context: ctx,
+ Paths: a.aaptProperties.Assets,
+ IncludeDirs: false,
+ })
assetDirs := android.PathsWithOptionalDefaultForModuleSrc(ctx, a.aaptProperties.Asset_dirs, "assets")
resourceDirs := android.PathsWithOptionalDefaultForModuleSrc(ctx, a.aaptProperties.Resource_dirs, "res")
resourceZips := android.PathsForModuleSrc(ctx, a.aaptProperties.Resource_zips)
@@ -226,6 +234,28 @@
assetDirStrings = append(assetDirStrings, filepath.Dir(a.noticeFile.Path().String()))
assetDeps = append(assetDeps, a.noticeFile.Path())
}
+ if len(assets) > 0 {
+ // aapt2 doesn't support adding individual asset files. Create a temp directory to hold asset
+ // files and pass it to aapt2.
+ tmpAssetDir := android.PathForModuleOut(ctx, "tmp_asset_dir")
+
+ rule := android.NewRuleBuilder(pctx, ctx)
+ rule.Command().
+ Text("rm -rf").Text(tmpAssetDir.String()).
+ Text("&&").
+ Text("mkdir -p").Text(tmpAssetDir.String())
+
+ for _, asset := range assets {
+ output := tmpAssetDir.Join(ctx, asset.Rel())
+ assetDeps = append(assetDeps, output)
+ rule.Command().Text("mkdir -p").Text(filepath.Dir(output.String()))
+ rule.Command().Text("cp").Input(asset).Output(output)
+ }
+
+ rule.Build("tmp_asset_dir", "tmp_asset_dir")
+
+ assetDirStrings = append(assetDirStrings, tmpAssetDir.String())
+ }
linkFlags = append(linkFlags, "--manifest "+manifestPath.String())
linkDeps = append(linkDeps, manifestPath)