Export lists of support libraries modules to Make

Make will use the list to sort support libraries into
LOCAL_STATIC_ANDROID_LIBRARIES and LOCAL_STATIC_JAVA_LIBRARIES
as appropriate.

Bug: 78300023
Test: m checkbuild
Change-Id: I58582b124f2b6a9b124683ddf8f5d77314f2e941
Merged-In: I58582b124f2b6a9b124683ddf8f5d77314f2e941
(cherry picked from commit ff8ab0745f59c9c1ec3268051e24956ba8647849)

2 files changed, 67 insertions, 0 deletions

diff --git a/Android.bp b/Android.bp
index 68640fba..e9b1ebe0 100644
--- a/Android.bp
+++ b/Android.bp
@@ -232,6 +232,7 @@ bootstrap_go_package {
         "java/java.go",
         "java/java_resources.go",
         "java/proto.go",
+        "java/support_libraries.go",
         "java/system_modules.go",
     ],
     testSrcs: [
diff --git a/java/support_libraries.go b/java/support_libraries.go
new file mode 100644
index 00000000..320afae1
--- /dev/null
+++ b/java/support_libraries.go
@@ -0,0 +1,66 @@
+// Copyright 2018 Google Inc. All rights reserved.
+//
+// Licensed under the Apache License, Version 2.0 (the "License");
+// you may not use this file except in compliance with the License.
+// You may obtain a copy of the License at
+//
+//     http://www.apache.org/licenses/LICENSE-2.0
+//
+// Unless required by applicable law or agreed to in writing, software
+// distributed under the License is distributed on an "AS IS" BASIS,
+// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+// See the License for the specific language governing permissions and
+// limitations under the License.
+
+package java
+
+import (
+	"sort"
+	"strings"
+
+	"android/soong/android"
+)
+
+func init() {
+	android.RegisterMakeVarsProvider(pctx, supportLibrariesMakeVarsProvider)
+}
+
+func supportLibrariesMakeVarsProvider(ctx android.MakeVarsContext) {
+	var supportAars, supportJars []string
+
+	sctx := ctx.SingletonContext()
+	sctx.VisitAllModules(func(module android.Module) {
+		dir := sctx.ModuleDir(module)
+		switch {
+		case strings.HasPrefix(dir, "prebuilts/sdk/current/extras"),
+			dir == "prebuilts/sdk/current/androidx",
+			dir == "prebuilts/sdk/current/car",
+			dir == "prebuilts/sdk/current/optional",
+			dir == "prebuilts/sdk/current/support":
+			// Support library
+		default:
+			// Not a support library
+			return
+		}
+
+		name := sctx.ModuleName(module)
+		if strings.HasSuffix(name, "-nodeps") {
+			return
+		}
+
+		switch module.(type) {
+		case *AndroidLibrary, *AARImport:
+			supportAars = append(supportAars, name)
+		case *Library, *Import:
+			supportJars = append(supportJars, name)
+		default:
+			sctx.ModuleErrorf(module, "unknown module type %t", module)
+		}
+	})
+
+	sort.Strings(supportAars)
+	sort.Strings(supportJars)
+
+	ctx.Strict("SUPPORT_LIBRARIES_AARS", strings.Join(supportAars, " "))
+	ctx.Strict("SUPPORT_LIBRARIES_JARS", strings.Join(supportJars, " "))
+}