Convert test_mapping.zip to soong

Bug: 398025839
Test: Diffed test_mapping.zip before/after this change
Change-Id: Ief6e1dd110749929b55157434a70862efc676eaa
diff --git a/android/test_mapping_zip.go b/android/test_mapping_zip.go
new file mode 100644
index 0000000..8dc70d7
--- /dev/null
+++ b/android/test_mapping_zip.go
@@ -0,0 +1,49 @@
+// Copyright 2025 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 android
+
+func init() {
+	InitRegistrationContext.RegisterSingletonType("test_mapping_zip_singleton", testMappingZipSingletonFactory)
+}
+
+func testMappingZipSingletonFactory() Singleton {
+	return &testMappingZipSingleton{}
+}
+
+type testMappingZipSingleton struct{}
+
+func (s *testMappingZipSingleton) GenerateBuildActions(ctx SingletonContext) {
+	fileListFile := PathForArbitraryOutput(ctx, ".module_paths", "TEST_MAPPING.list")
+	out := PathForOutput(ctx, "test_mappings.zip")
+	dep := PathForOutput(ctx, "test_mappings.zip.d")
+
+	// disabled-presubmit-tests used to be filled out based on modules that set
+	// LOCAL_PRESUBMIT_DISABLED. But that's no longer used and there was never a soong equivalent
+	// anyways, so just always create an empty file.
+	disabledPresubmitTestsFile := PathForOutput(ctx, "disabled-presubmit-tests")
+	WriteFileRule(ctx, disabledPresubmitTestsFile, "")
+
+	builder := NewRuleBuilder(pctx, ctx)
+	builder.Command().BuiltTool("soong_zip").
+		FlagWithOutput("-o ", out).
+		FlagWithInput("-l ", fileListFile).
+		FlagWithArg("-e ", "disabled-presubmit-tests").
+		FlagWithInput("-f ", disabledPresubmitTestsFile)
+	builder.Command().Textf("echo '%s : ' $(cat %s) > ", out, fileListFile).DepFile(dep)
+	builder.Build("test_mappings_zip", "build TEST_MAPPING zip")
+
+	ctx.Phony("test_mapping", out)
+	ctx.DistForGoals([]string{"dist_files", "test_mapping"}, out)
+}