Use manifest merger in Soong

Move the manifest merger config to Soong, and use it to merge
manifests of static dependencies of android_library and android_app
modules.

Bug: 110848854
Test: m checkbuild
Change-Id: Ib89e1f1a52a8b76157e4e0348baf42800412df0d

java/android_manifest.go

@@ -0,0 +1,71 @@
+// 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 (
+	"android/soong/java/config"
+
+	"github.com/google/blueprint"
+
+	"android/soong/android"
+)
+
+var manifestFixerRule = pctx.AndroidStaticRule("manifestFixer",
+	blueprint.RuleParams{
+		Command:     `${config.ManifestFixerCmd} --minSdkVersion ${minSdkVersion} $usesLibraries $in $out`,
+		CommandDeps: []string{"${config.ManifestFixerCmd}"},
+	},
+	"minSdkVersion", "usesLibraries")
+
+var manifestMergerRule = pctx.AndroidStaticRule("manifestMerger",
+	blueprint.RuleParams{
+		Command: `${config.JavaCmd} -classpath ${config.ManifestMergerClasspath} com.android.manifmerger.Merger ` +
+			`--main $in $libs --out $out`,
+		CommandDeps: config.ManifestMergerClasspath,
+	},
+	"libs")
+
+func manifestMerger(ctx android.ModuleContext, manifest android.Path, sdkContext sdkContext,
+	staticLibManifests android.Paths) android.Path {
+
+	// Inject minSdkVersion into the manifest
+	fixedManifest := android.PathForModuleOut(ctx, "manifest_fixer", "AndroidManifest.xml")
+	ctx.Build(pctx, android.BuildParams{
+		Rule:   manifestFixerRule,
+		Input:  manifest,
+		Output: fixedManifest,
+		Args: map[string]string{
+			"minSdkVersion": sdkVersionOrDefault(ctx, sdkContext.minSdkVersion()),
+		},
+	})
+	manifest = fixedManifest
+
+	// Merge static aar dependency manifests if necessary
+	if len(staticLibManifests) > 0 {
+		mergedManifest := android.PathForModuleOut(ctx, "manifest_merger", "AndroidManifest.xml")
+		ctx.Build(pctx, android.BuildParams{
+			Rule:      manifestMergerRule,
+			Input:     manifest,
+			Implicits: staticLibManifests,
+			Output:    mergedManifest,
+			Args: map[string]string{
+				"libs": android.JoinWithPrefix(staticLibManifests.Strings(), "--uses-library "),
+			},
+		})
+		manifest = mergedManifest
+	}
+
+	return manifest
+}