Generate combined deps-info for all updatable modules.
Introduce a singleton apex rule to merge contents of individual
deps-info results into a single output file.
Bug: 149622332
Test: m
Change-Id: I4ab7e1a3527fead97a81a5a2cb0e1e93a429117c
diff --git a/apex/apex_singleton.go b/apex/apex_singleton.go
new file mode 100644
index 0000000..83a56a2
--- /dev/null
+++ b/apex/apex_singleton.go
@@ -0,0 +1,65 @@
+/*
+ * Copyright (C) 2020 The Android Open Source Project
+ *
+ * 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 apex
+
+import (
+ "github.com/google/blueprint"
+
+ "android/soong/android"
+)
+
+func init() {
+ android.RegisterSingletonType("apex_depsinfo_singleton", apexDepsInfoSingletonFactory)
+}
+
+type apexDepsInfoSingleton struct {
+ // Output file with all flatlists from updatable modules' deps-info combined
+ updatableFlatListsPath android.OutputPath
+}
+
+func apexDepsInfoSingletonFactory() android.Singleton {
+ return &apexDepsInfoSingleton{}
+}
+
+var combineFilesRule = pctx.AndroidStaticRule("combineFilesRule",
+ blueprint.RuleParams{
+ Command: "cat $out.rsp | xargs cat > $out",
+ Rspfile: "$out.rsp",
+ RspfileContent: "$in",
+ },
+)
+
+func (s *apexDepsInfoSingleton) GenerateBuildActions(ctx android.SingletonContext) {
+ updatableFlatLists := android.Paths{}
+ ctx.VisitAllModules(func(module android.Module) {
+ if binaryInfo, ok := module.(android.ApexBundleDepsInfoIntf); ok {
+ if path := binaryInfo.FlatListPath(); path != nil {
+ if binaryInfo.Updatable() {
+ updatableFlatLists = append(updatableFlatLists, path)
+ }
+ }
+ }
+ })
+
+ s.updatableFlatListsPath = android.PathForOutput(ctx, "apex", "depsinfo", "updatable-flatlists.txt")
+ ctx.Build(pctx, android.BuildParams{
+ Rule: combineFilesRule,
+ Description: "Generate " + s.updatableFlatListsPath.String(),
+ Inputs: updatableFlatLists,
+ Output: s.updatableFlatListsPath,
+ })
+}