Snap for 10453563 from fbf62f8632731c3c78cfbfce15e6cd4c2079978a to mainline-sdkext-releaseaml_sdk_341510000aml_sdk_341410000aml_sdk_341110080aml_sdk_341110000aml_sdk_341010000aml_sdk_340912010android14-mainline-sdkext-release

Change-Id: I82c30207972d7297caab0cc6ee7811eda35a8673

20 files changed, 0 insertions, 1996 deletions

diff --git a/Android.bp b/Android.bp
deleted file mode 100644
index eb7729b..0000000
--- a/Android.bp
+++ /dev/null
@@ -1,157 +0,0 @@
-//
-// 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 {
-    default_applicable_licenses: ["Android-Apache-2.0"],
-}
-
-python_defaults {
-    name: "gki_python_defaults",
-    libs: [
-        "releasetools_ota_from_target_files",
-    ],
-    version: {
-        py3: {
-            embedded_launcher: true,
-        },
-    },
-    target: {
-        darwin: {
-            // required module "brillo_update_payload" is disabled on darwin
-            enabled: false,
-        },
-    },
-}
-
-python_binary_host {
-    name: "ota_from_raw_image",
-    defaults: ["gki_python_defaults"],
-    srcs: ["ota_from_raw_image.py"],
-    required: [
-        "brillo_update_payload",
-    ],
-}
-
-python_binary_host {
-    name: "extract_img_from_apex",
-    defaults: ["gki_python_defaults"],
-    srcs: ["extract_img_from_apex.py"],
-    required: [
-        "debugfs",
-        "delta_generator",
-    ],
-}
-
-apex_key {
-    name: "com.android.gki.key",
-    public_key: "com.android.gki.avbpubkey",
-    private_key: "com.android.gki.pem",
-}
-
-// Use cc_prebuilt_binary because sh_binary does not support product_specific.
-// TODO(b/169954965): Change to sh_binary when product_specific is supported.
-cc_prebuilt_binary {
-    name: "com.android.gki.preinstall",
-    product_specific: true,
-    srcs: ["preinstall.sh"],
-    apex_available: ["com.android.gki.*"],
-    strip: {
-        none: true,
-    },
-}
-
-// Common defaults for all GKI APEXes.
-apex_defaults {
-    name: "com.android.gki_defaults",
-    product_specific: true,
-    binaries: [
-        "update_engine_stable_client",
-        "com.android.gki.preinstall",
-    ],
-    file_contexts: ":com.android.gki-file_contexts",
-    // Key to sign apex_payload.img
-    key: "com.android.gki.key",
-    // Key to sign APEX. Left empty to use defaults.
-    certificate: "",
-    updatable: false,
-}
-
-// Helper binary to build APEX manifest for GKI.
-cc_binary_host {
-    name: "build_gki_apex_manifest",
-    srcs: [
-        "build_gki_apex_manifest.cpp",
-    ],
-    static_libs: [
-        "libbase",
-        "libgflags",
-        "libjsoncpp",
-        "libkver",
-        "liblog",
-    ],
-    cflags: [
-        "-Wall",
-        "-Werror",
-    ],
-}
-
-// Build GKI APEX 5.4-android12-unstable from $(PRODUCT_OUT)/boot.img.
-// Also generate test packages.
-gki_apex {
-    name: "com.android.gki.kmi_5_4_android12_unstable",
-    installable: true,
-    kmi_version: "5.4-android12-unstable",
-    product_out_path: "boot.img",
-    gen_test: true,
-}
-
-// Build GKI APEX 5.10-android12-unstable from $(PRODUCT_OUT)/boot.img.
-// Also generate test packages.
-gki_apex {
-    name: "com.android.gki.kmi_5_10_android12_unstable",
-    installable: true,
-    kmi_version: "5.10-android12-unstable",
-    product_out_path: "boot.img",
-    gen_test: true,
-}
-
-// Build GKI APEX 5.4-android12-unstable from $(PRODUCT_OUT)/boot-5.4.img
-gki_apex {
-    name: "com.android.gki.kmi_5_4_android12_unstable_boot-5.4",
-    installable: false,
-    kmi_version: "5.4-android12-unstable",
-    product_out_path: "boot-5.4.img",
-}
-
-// Build GKI APEX 5.10-android12-unstable from $(PRODUCT_OUT)/boot-5.10.img
-gki_apex {
-    name: "com.android.gki.kmi_5_10_android12_unstable_boot-5.10",
-    installable: false,
-    kmi_version: "5.10-android12-unstable",
-    product_out_path: "boot-5.10.img",
-}
-
-// List of all test APEXes for GkiInstallTest. Append "_test_high" and "_test_low" for each
-// gki_apex with gen_test:true.
-filegroup {
-    name: "gki_install_test_files",
-    srcs: [
-        ":com.android.gki.kmi_5_4_android12_unstable_test_high",
-        ":com.android.gki.kmi_5_4_android12_unstable_test_low",
-        ":com.android.gki.kmi_5_10_android12_unstable_test_high",
-        ":com.android.gki.kmi_5_10_android12_unstable_test_low",
-    ],
-}
diff --git a/TEST_MAPPING b/TEST_MAPPING
index 592bd85..ce2bc64 100644
--- a/TEST_MAPPING
+++ b/TEST_MAPPING
@@ -2,9 +2,6 @@
   "presubmit": [
     {
       "name": "libkver_test"
-    },
-    {
-      "name": "GkiInstallTest"
     }
   ]
 }
diff --git a/build/Android.bp b/build/Android.bp
deleted file mode 100644
index d9cb6ff..0000000
--- a/build/Android.bp
+++ /dev/null
@@ -1,41 +0,0 @@
-// 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 {
-    default_applicable_licenses: ["Android-Apache-2.0"],
-}
-
-bootstrap_go_package {
-    name: "gki-soong-rules",
-    pkgPath: "android/soong/gki",
-    pluginFor: ["soong_build"],
-    deps: [
-        "blueprint",
-        "blueprint-proptools",
-        "soong",
-        "soong-android",
-        "soong-apex",
-        "soong-phony",
-    ],
-    srcs: [
-        "gki.go",
-        "kmi.go",
-        "prebuilt.go",
-        "properties.go",
-        "raw_img_ota.go",
-    ],
-    testSrcs: [
-        "kmi_test.go",
-    ],
-}
diff --git a/build/gki.go b/build/gki.go
deleted file mode 100644
index e34130b..0000000
--- a/build/gki.go
+++ /dev/null
@@ -1,311 +0,0 @@
-// 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 gki
-
-import (
-	"path/filepath"
-	"strings"
-
-	"android/soong/android"
-	"android/soong/apex"
-	"android/soong/etc"
-	"android/soong/genrule"
-
-	"github.com/google/blueprint/proptools"
-)
-
-type gkiApexProperties struct {
-	// Path relative to $(PRODUCT_OUT) that points to the boot image. This is
-	// passed to the generated makefile_goal.
-	// Exactly one of [factory, product_out_path] must be set.
-	Product_out_path *string
-
-	// Declared KMI version of the boot image. Example: "5.4-android12-0"
-	Kmi_version *string
-
-	// The certificate to sign the OTA payload.
-	// The name of a certificate in the default certificate directory, blank to
-	// use the default product certificate,
-	// or an android_app_certificate module name in the form ":module".
-	Ota_payload_certificate *string
-
-	// Whether test APEXes are generated. Test APEXes are named with
-	// ${name}_test_high and ${name}_test_low, respectively.
-	Gen_test *bool
-
-	// Whether this APEX is installable to one of the partitions. Default:
-	// see apex.installable.
-	Installable *bool
-
-	// Whether modules should be enabled according to board variables.
-	ModulesEnabled bool `blueprint:"mutated"`
-	// APEX package name that will be declared in the APEX manifest.
-	// e.g. com.android.gki.kmi_5_4_android12_0
-	ApexName *string `blueprint:"mutated"`
-}
-
-type gkiApex struct {
-	android.ModuleBase
-	properties gkiApexProperties
-}
-
-func init() {
-	android.RegisterModuleType("gki_apex", gkiApexFactory)
-}
-
-// Declare a GKI APEX. Generate a set of modules to define an apex with name
-// "com.android.gki" + sanitized(kmi_version).
-func gkiApexFactory() android.Module {
-	g := &gkiApex{}
-	g.AddProperties(&g.properties)
-	android.InitAndroidModule(g)
-	android.AddLoadHook(g, func(ctx android.LoadHookContext) { gkiApexMutator(ctx, g) })
-	return g
-}
-
-func gkiApexMutator(mctx android.LoadHookContext, g *gkiApex) {
-	g.validateAndSetMutableProperties(mctx)
-	g.createModulesRealApexes(mctx)
-}
-
-func (g *gkiApex) validateAndSetMutableProperties(mctx android.LoadHookContext) {
-	// Parse kmi_version property to find APEX name.
-	apexName, err := kmiVersionToApexName(proptools.String(g.properties.Kmi_version))
-	if err != nil {
-		mctx.PropertyErrorf("kmi_version", err.Error())
-		return
-	}
-
-	// Set mutable properties.
-	g.properties.ModulesEnabled = g.bootImgHasRules(mctx) && g.boardDefinesKmiVersion(mctx)
-	g.properties.ApexName = proptools.StringPtr(apexName)
-}
-
-func testApexBundleFactory() android.Module {
-	return apex.ApexBundleFactory(true /* testApex */)
-}
-
-// Create modules for a real APEX package that contains an OTA payload.
-func (g *gkiApex) createModulesRealApexes(mctx android.LoadHookContext) {
-	// Import $(PRODUCT_OUT)/boot.img to Soong
-	bootImage := g.moduleName() + "_bootimage"
-	mctx.CreateModule(android.MakefileGoalFactory, &moduleCommonProperties{
-		Name:    proptools.StringPtr(bootImage),
-		Enabled: proptools.BoolPtr(g.properties.ModulesEnabled),
-	}, &makefileGoalProperties{
-		Product_out_path: g.properties.Product_out_path,
-	})
-	// boot.img -> kernel_release.txt
-	mctx.CreateModule(genrule.GenRuleFactory, &moduleCommonProperties{
-		Name:    proptools.StringPtr(g.kernelReleaseFileName()),
-		Enabled: proptools.BoolPtr(g.properties.ModulesEnabled),
-	}, &genRuleProperties{
-		Defaults: []string{"extract_kernel_release_defaults"},
-		Srcs:     []string{":" + bootImage},
-	})
-	// boot.img -> payload.bin and payload_properties.txt
-	otaPayloadGen := g.moduleName() + "_ota_payload_gen"
-	mctx.CreateModule(rawImageOtaFactory, &moduleCommonProperties{
-		Name:    proptools.StringPtr(otaPayloadGen),
-		Enabled: proptools.BoolPtr(g.properties.ModulesEnabled),
-	}, &rawImageOtaProperties{
-		Certificate: g.properties.Ota_payload_certificate,
-		Image_goals: []string{"boot:" + bootImage},
-	})
-	// copy payload.bin to <apex>/etc/ota
-	mctx.CreateModule(etc.PrebuiltEtcFactory, &moduleCommonProperties{
-		Name:    proptools.StringPtr(g.otaPayloadName()),
-		Enabled: proptools.BoolPtr(g.properties.ModulesEnabled),
-	}, &prebuiltEtcProperties{
-		Src:                   proptools.StringPtr(":" + otaPayloadGen + "{" + payloadTag + "}"),
-		Filename_from_src:     proptools.BoolPtr(true),
-		Relative_install_path: proptools.StringPtr("ota"),
-		Installable:           proptools.BoolPtr(false),
-	})
-	// copy payload_properties.txt to <apex>/etc/ota
-	mctx.CreateModule(etc.PrebuiltEtcFactory, &moduleCommonProperties{
-		Name:    proptools.StringPtr(g.otaPropertiesName()),
-		Enabled: proptools.BoolPtr(g.properties.ModulesEnabled),
-	}, &prebuiltEtcProperties{
-		Src:                   proptools.StringPtr(":" + otaPayloadGen + "{" + payloadPropertiesTag + "}"),
-		Filename_from_src:     proptools.BoolPtr(true),
-		Relative_install_path: proptools.StringPtr("ota"),
-		Installable:           proptools.BoolPtr(false),
-	})
-	// Create the APEX module with name g.moduleName(). Use factory APEX version.
-	g.createModulesRealApex(mctx, g.moduleName(), false, "")
-
-	// Create test APEX modules if gen_test. Test packages are not installable.
-	// Use hard-coded APEX version.
-	if proptools.Bool(g.properties.Gen_test) {
-		g.createModulesRealApex(mctx, g.moduleName()+"_test_high", true, "1000000000")
-		g.createModulesRealApex(mctx, g.moduleName()+"_test_low", true, "1")
-	}
-}
-
-func (g *gkiApex) createModulesRealApex(mctx android.LoadHookContext,
-	moduleName string,
-	isTestApex bool,
-	overrideApexVersion string) {
-	// Check kmi_version property against kernel_release.txt, then
-	// kernel_release.txt -> apex_manifest.json.
-	apexManifest := moduleName + "_apex_manifest"
-	mctx.CreateModule(genrule.GenRuleFactory, &moduleCommonProperties{
-		Name:    proptools.StringPtr(apexManifest),
-		Enabled: proptools.BoolPtr(g.properties.ModulesEnabled),
-	}, &genRuleProperties{
-		Tools: []string{"build_gki_apex_manifest"},
-		Out:   []string{"apex_manifest.json"},
-		Srcs:  []string{":" + g.kernelReleaseFileName()},
-		Cmd:   proptools.StringPtr(g.createApexManifestCmd(overrideApexVersion)),
-	})
-
-	// The APEX module.
-
-	// For test APEXes, if module is not enabled because KMI version is not
-	// compatible with the device, create a stub module that produces an empty
-	// file. This is so that the module name can be used in tests.
-	if isTestApex && !g.properties.ModulesEnabled {
-		mctx.CreateModule(genrule.GenRuleFactory, &moduleCommonProperties{
-			Name: proptools.StringPtr(moduleName),
-		}, &genRuleProperties{
-			Out: []string{moduleName + ".apex"},
-			Cmd: proptools.StringPtr(`touch $(out)`),
-		})
-		return
-	}
-
-	// For test APEXes, if module is enabled, build an apex_test with installable: false.
-	// For installed APEXes, build apex, respecting installable and enabled.
-	apexFactory := apex.BundleFactory
-	overrideInstallable := g.properties.Installable
-	if isTestApex {
-		apexFactory = testApexBundleFactory
-		overrideInstallable = proptools.BoolPtr(false)
-	}
-
-	mctx.CreateModule(apexFactory, &moduleCommonProperties{
-		Name:    proptools.StringPtr(moduleName),
-		Enabled: proptools.BoolPtr(g.properties.ModulesEnabled),
-	}, &apexProperties{
-		Apex_name: g.properties.ApexName,
-		Manifest:  proptools.StringPtr(":" + apexManifest),
-		Defaults:  []string{"com.android.gki_defaults"},
-		// A real GKI APEX cannot be preinstalled to the device.
-		// It can only be provided as an update.
-		Installable: overrideInstallable,
-		Prebuilts: []string{
-			g.otaPayloadName(),
-			g.otaPropertiesName(),
-		},
-	})
-}
-
-// Original module name as specified by the "name" property.
-// This is also the APEX module name, i.e. the file name of the APEX file.
-// This is also the prefix of names of all generated modules that the phony module depends on.
-// e.g. com.android.gki.kmi_5_4_android12_0_boot
-func (g *gkiApex) moduleName() string {
-	return g.BaseModuleName()
-}
-
-// The appeared name of this gkiApex object. Exposed to Soong to avoid conflicting with
-// the generated APEX module with name moduleName().
-// e.g. com.android.gki.kmi_5_4_android12_0_boot_all
-func (g *gkiApex) Name() string {
-	return g.moduleName() + "_all"
-}
-
-// Names for intermediate modules.
-func (g *gkiApex) kernelReleaseFileName() string {
-	return g.moduleName() + "_bootimage_kernel_release_file"
-}
-
-func (g *gkiApex) otaPayloadName() string {
-	return g.moduleName() + "_ota_payload"
-}
-
-func (g *gkiApex) otaPropertiesName() string {
-	return g.moduleName() + "_ota_payload_properties"
-}
-
-// If the boot image pointed at product_out_path has no rule to be generated, do not generate any
-// build rules for this gki_apex module. For example, if this gki_apex module is:
-//     { name: "foo", product_out_path: "boot-bar.img" }
-// But there is no rule to generate boot-bar.img, then
-// - `m foo` fails with `unknown target 'foo'`
-// - checkbuild is still successful. The module foo doesn't even exist, so there
-//   is no dependency on boot-bar.img
-//
-// There is a rule to generate "boot-foo.img" if "kernel-foo" is in BOARD_KERNEL_BINARIES.
-// As a special case, there is a rule to generate "boot.img" if BOARD_KERNEL_BINARIES is empty,
-// or "kernel" is in BOARD_KERNEL_BINARIES.
-func (g *gkiApex) bootImgHasRules(mctx android.EarlyModuleContext) bool {
-	kernelNames := mctx.DeviceConfig().BoardKernelBinaries()
-	if len(kernelNames) == 0 {
-		return proptools.String(g.properties.Product_out_path) == "boot.img"
-	}
-	for _, kernelName := range kernelNames {
-		validBootImagePath := strings.Replace(kernelName, "kernel", "boot", -1) + ".img"
-		if proptools.String(g.properties.Product_out_path) == validBootImagePath {
-			return true
-		}
-	}
-	return false
-}
-
-// Only generate if this module's kmi_version property is in BOARD_KERNEL_MODULE_INTERFACE_VERSIONS.
-// Otherwise, this board does not support GKI APEXes, so no modules are generated at all.
-// This function also avoids building invalid modules in checkbuild. For example, if these
-// gki_apex modules are defined:
-//   gki_apex { name: "boot-kmi-1", kmi_version: "1", product_out_path: "boot.img" }
-//   gki_apex { name: "boot-kmi-2", kmi_version: "2", product_out_path: "boot.img" }
-// But a given device's $PRODUCT_OUT/boot.img can only support at most one KMI version.
-// Disable some modules accordingly to make sure checkbuild still works.
-func boardDefinesKmiVersion(mctx android.EarlyModuleContext, kmiVersion string) bool {
-	kmiVersions := mctx.DeviceConfig().BoardKernelModuleInterfaceVersions()
-	return android.InList(kmiVersion, kmiVersions)
-}
-
-func (g *gkiApex) boardDefinesKmiVersion(mctx android.EarlyModuleContext) bool {
-	return boardDefinesKmiVersion(mctx, proptools.String(g.properties.Kmi_version))
-}
-
-// Transform kernel release file in $(in) to KMI version + sublevel.
-// e.g. 5.4.42-android12-0 => name: "com.android.gki.kmi_5_4_android12_0", version: "300000000"
-// Finally, write APEX manifest JSON to $(out).
-func (g *gkiApex) createApexManifestCmd(apexVersion string) string {
-	ret := `$(location build_gki_apex_manifest) ` +
-		`--kmi_version "` + proptools.String(g.properties.Kmi_version) + `" ` +
-		`--apex_manifest $(out) --kernel_release_file $(in)`
-	// Override version field if set.
-	if apexVersion != "" {
-		ret += ` --apex_version ` + apexVersion
-	}
-	return ret
-}
-
-func (g *gkiApex) DepsMutator(ctx android.BottomUpMutatorContext) {
-}
-
-func (g *gkiApex) GenerateAndroidBuildActions(ctx android.ModuleContext) {
-}
-
-// OTA payload binary is signed with default_system_dev_certificate, which is equivalent to
-// DefaultAppCertificate().
-func getDefaultCertificate(ctx android.EarlyModuleContext) string {
-	pem, _ := ctx.Config().DefaultAppCertificate(ctx)
-	return strings.TrimSuffix(pem.String(), filepath.Ext(pem.String()))
-}
diff --git a/build/kmi.go b/build/kmi.go
deleted file mode 100644
index cf03cb2..0000000
--- a/build/kmi.go
+++ /dev/null
@@ -1,45 +0,0 @@
-// Copyright (C) 2020 The Android Open Source Project
-//
-// Licensed under the Apache License, Version 2.0 (the "License");
-// you may not use this file except in compliance with the License.
-// You may obtain a copy of the License at
-//
-//     http://www.apache.org/licenses/LICENSE-2.0
-//
-// Unless required by applicable law or agreed to in writing, software
-// distributed under the License is distributed on an "AS IS" BASIS,
-// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
-// See the License for the specific language governing permissions and
-// limitations under the License.
-
-// Minimum support of KMI version in Go. Keep in sync with libkver.
-
-package gki
-
-import (
-	"fmt"
-	"regexp"
-)
-
-var digits = "([0-9]+)"
-var reKmi = regexp.MustCompile("^([0-9]+)[.]([0-9]+)-(android[0-9]+)-([0-9]+|unstable)$")
-
-// Input is a valid KMI version, e.g. 5.4-android12-0.
-// Return a sanitized string to be used as a suffix of APEX package name
-// com.android.gki.kmi_5_4_android12_0
-// Keep in sync with libkver.
-func kmiVersionToApexName(s string) (string, error) {
-	matches := reKmi.FindAllStringSubmatch(s, 4)
-
-	if matches == nil {
-		return "", fmt.Errorf("Poorly formed KMI version: %q must match regex %q", s, reKmi)
-	}
-
-	version := matches[0][1]
-	patchLevel := matches[0][2]
-	androidRelease := matches[0][3]
-	kmiGeneration := matches[0][4]
-
-	return fmt.Sprintf("com.android.gki.kmi_%s_%s_%s_%s",
-		version, patchLevel, androidRelease, kmiGeneration), nil
-}
diff --git a/build/kmi_test.go b/build/kmi_test.go
deleted file mode 100644
index de7642b..0000000
--- a/build/kmi_test.go
+++ /dev/null
@@ -1,48 +0,0 @@
-// 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.
-
-// Minimum support of KMI version in Go. Keep in sync with libkver.
-
-package gki
-
-import (
-	"testing"
-)
-
-func expectValid(t *testing.T, kmi string, expectedApexName string) {
-	t.Helper()
-	got, e := kmiVersionToApexName(kmi)
-	if e != nil {
-		t.Errorf("Expected no error when parsing %q, got %q", kmi, e)
-	}
-	if got != expectedApexName {
-		t.Errorf("Expected kmiVersionToApexName(%q) == %q, got %q", kmi, expectedApexName, got)
-	}
-}
-
-func expectInvalid(t *testing.T, kmi string) {
-	t.Helper()
-	got, e := kmiVersionToApexName(kmi)
-	if e == nil {
-		t.Errorf("Expected error when parsing %q, got no error with result %q", kmi, got)
-	}
-}
-
-func TestParse(t *testing.T) {
-	expectInvalid(t, "")
-	expectInvalid(t, "foobar")
-	expectInvalid(t, "1")
-	expectValid(t, "5.4-android12-0", "com.android.gki.kmi_5_4_android12_0")
-	expectValid(t, "5.4-android12-42", "com.android.gki.kmi_5_4_android12_42")
-}
diff --git a/build/prebuilt.go b/build/prebuilt.go
deleted file mode 100644
index da8a123..0000000
--- a/build/prebuilt.go
+++ /dev/null
@@ -1,125 +0,0 @@
-// 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 gki
-
-import (
-	"fmt"
-	"io"
-
-	"android/soong/android"
-	"android/soong/apex"
-	"github.com/google/blueprint/proptools"
-)
-
-var (
-	prebuiltApexTag = dependencyTag{name: "prebuilt_apex"}
-)
-
-type prebuiltGkiApexProperties struct {
-	apex.PrebuiltProperties
-
-	// Declared KMI version of the boot image. Example: "5.4-android12-0"
-	Kmi_version *string
-}
-
-type prebuiltGkiApex struct {
-	android.ModuleBase
-	properties prebuiltGkiApexProperties
-
-	extractedBootImage android.WritablePath
-}
-
-func init() {
-	android.RegisterModuleType("prebuilt_gki_apex", prebuiltGkiApexFactory)
-}
-
-// Declare a prebuilt GKI APEX. When installed, the boot image is extracted from
-// the module.
-func prebuiltGkiApexFactory() android.Module {
-	g := &prebuiltGkiApex{}
-	g.AddProperties(&g.properties)
-	android.InitAndroidModule(g)
-	android.AddLoadHook(g, func(ctx android.LoadHookContext) { prebuiltGkiApexMutator(ctx, g) })
-	return g
-}
-func prebuiltGkiApexMutator(mctx android.LoadHookContext, g *prebuiltGkiApex) {
-	// Whether modules should be enabled according to board variables.
-	enabled := boardDefinesKmiVersion(mctx, proptools.String(g.properties.Kmi_version))
-	if !enabled {
-		g.Disable()
-	}
-
-	// The prebuilt_apex module.
-	mctx.CreateModule(apex.PrebuiltFactory, &moduleCommonProperties{
-		Name:             proptools.StringPtr(g.BaseModuleName()),
-		Enabled:          proptools.BoolPtr(enabled),
-		Product_specific: proptools.BoolPtr(true),
-	}, &g.properties.PrebuiltProperties)
-}
-
-// The appeared name of this prebuiltGkiApex object. Exposed to Soong to avoid conflicting with
-// the generated prebuilt_apex module with name BaseModuleName().
-func (g *prebuiltGkiApex) Name() string {
-	return g.BaseModuleName() + "_boot_img"
-}
-
-func (g *prebuiltGkiApex) DepsMutator(ctx android.BottomUpMutatorContext) {
-	ctx.AddDependency(ctx.Module(), prebuiltApexTag, g.BaseModuleName())
-}
-
-func (g *prebuiltGkiApex) GenerateAndroidBuildActions(ctx android.ModuleContext) {
-	var apexFile android.OptionalPath
-	ctx.VisitDirectDepsWithTag(prebuiltApexTag, func(m android.Module) {
-		if prebuiltApex, ok := m.(*apex.Prebuilt); ok {
-			srcFiles, err := prebuiltApex.OutputFiles("")
-			if err != nil {
-				ctx.ModuleErrorf("Cannot get output files from %q: %s", ctx.OtherModuleName(m), err)
-			} else if len(srcFiles) != 1 {
-				ctx.ModuleErrorf("%q generated %d files", ctx.OtherModuleName(m), len(srcFiles))
-			} else {
-				apexFile = android.OptionalPathForPath(srcFiles[0])
-			}
-		} else {
-			ctx.ModuleErrorf("%q is not a prebuilt_apex", ctx.OtherModuleName(m))
-		}
-	})
-	if !apexFile.Valid() {
-		ctx.ModuleErrorf("Can't determine the prebuilt APEX file")
-		return
-	}
-
-	genDir := android.PathForModuleOut(ctx, "extracted")
-	g.extractedBootImage = genDir.Join(ctx, "boot.img")
-
-	rule := android.NewRuleBuilder(pctx, ctx)
-	rule.Command().
-		ImplicitOutput(g.extractedBootImage).
-		BuiltTool("extract_img_from_apex").
-		Flag("--tool").BuiltTool("debugfs").
-		Flag("--tool").BuiltTool("delta_generator").
-		Input(apexFile.Path()).
-		Text(genDir.String())
-	rule.Build("extractImgFromApex", "Extract boot image from prebuilt GKI APEX")
-
-	ctx.Phony(g.BaseModuleName(), g.extractedBootImage)
-}
-
-func (g *prebuiltGkiApex) AndroidMk() android.AndroidMkData {
-	return android.AndroidMkData{
-		Custom: func(w io.Writer, name, prefix, moduleDir string, data android.AndroidMkData) {
-			fmt.Fprintf(w, "ALL_MODULES.%s.EXTRACTED_BOOT_IMAGE := %s\n", name, g.extractedBootImage)
-		},
-	}
-}
diff --git a/build/properties.go b/build/properties.go
deleted file mode 100644
index af68446..0000000
--- a/build/properties.go
+++ /dev/null
@@ -1,50 +0,0 @@
-// 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 gki
-
-type moduleCommonProperties struct {
-	Name             *string
-	Enabled          *bool
-	Required         []string
-	Product_specific *bool
-}
-
-type makefileGoalProperties struct {
-	Product_out_path *string
-}
-
-type genRuleProperties struct {
-	Cmd      *string
-	Defaults []string
-	Out      []string
-	Srcs     []string
-	Tools    []string
-}
-
-type prebuiltEtcProperties struct {
-	Src                   *string
-	Filename_from_src     *bool
-	Relative_install_path *string
-	Installable           *bool
-}
-
-type apexProperties struct {
-	Apex_name   *string
-	Manifest    *string
-	Defaults    []string
-	Installable *bool
-	Prebuilts   []string
-	Overrides   []string
-}
diff --git a/build/raw_img_ota.go b/build/raw_img_ota.go
deleted file mode 100644
index 2f29e2e..0000000
--- a/build/raw_img_ota.go
+++ /dev/null
@@ -1,250 +0,0 @@
-// 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.
-
-// A special genrule that creates OTA payload and payload_properties from a raw
-// image. This rule is created so that the two outputs, payload and
-// payload_properties, can be distinguished with tags.
-
-package gki
-
-import (
-	"fmt"
-	"sort"
-	"strings"
-
-	"android/soong/android"
-	"android/soong/java"
-
-	"github.com/google/blueprint"
-	"github.com/google/blueprint/proptools"
-)
-
-type dependencyTag struct {
-	blueprint.BaseDependencyTag
-	name string
-}
-
-// {"foo": "fooVal", "bar": "barVal"} -> ["${foo}", "${bar}"]
-func keysToVars(deps map[string]string) []string {
-	var ret []string
-	for dep := range deps {
-		ret = append(ret, fmt.Sprintf("${%s}", dep))
-	}
-	sort.Strings(ret)
-	return ret
-}
-
-var (
-	certificateTag = dependencyTag{name: "certificate"}
-	rawImageTag    = dependencyTag{name: "raw_image"}
-
-	pctx = android.NewPackageContext("android/gki")
-
-	otaFromRawImageDeps = map[string]string{
-		"ota_from_raw_image": "ota_from_raw_image",
-
-		// Needed by ota_from_target_files
-		"brillo_update_payload": "brillo_update_payload",
-
-		// Needed by brillo_update_payload
-		"delta_generator": "delta_generator",
-		// b/171581299: shflags isn't built to the path where HostBinToolVariable
-		// points to without explicitly declaring it, even if it is stated as
-		// required by brillo_update_payload.
-		"shflags": "lib/shflags/shflags",
-
-		// Needed by GetBootImageTimestamp
-		"lz4":            "lz4",
-		"toybox":         "toybox",
-		"unpack_bootimg": "unpack_bootimg",
-	}
-
-	otaFromRawImageVarDeps = keysToVars(otaFromRawImageDeps)
-
-	otaFromRawImageRule = pctx.AndroidStaticRule("ota_from_raw_image", blueprint.RuleParams{
-		Command: `${ota_from_raw_image} --tools ` + strings.Join(otaFromRawImageVarDeps, " ") +
-			` ${kwargs} --out ${outDir} -- ${inputArg}`,
-		CommandDeps: otaFromRawImageVarDeps,
-		Description: "ota_from_raw_image ${outDir}",
-	}, "kwargs", "outDir", "inputArg")
-
-	// Tags to OutputFiles
-	payloadTag           = "payload"
-	payloadPropertiesTag = "properties"
-)
-
-func init() {
-	for dep := range otaFromRawImageDeps {
-		pctx.HostBinToolVariable(dep, otaFromRawImageDeps[dep])
-	}
-	// Intentionally not register this module so that it can only be constructed by gki_apex.
-}
-
-type rawImageOtaProperties struct {
-	// The name of a certificate in the default certificate directory, blank to use the default product certificate,
-	// or an android_app_certificate module name in the form ":module".
-	Certificate *string
-
-	// A set of images and their related modules. Must be in this form
-	// IMAGE_NAME:MODULE, where IMAGE_NAME is an image name like "boot", and
-	// MODULE is the name of a makefile_goal.
-	Image_goals []string
-}
-
-type rawImageOta struct {
-	android.ModuleBase
-	properties rawImageOtaProperties
-
-	pem android.Path
-	key android.Path
-
-	outPayload    android.WritablePath
-	outProperties android.WritablePath
-}
-
-// Declare a rule that generates a signed OTA payload from a raw image. This
-// includes payload.bin and payload_properties.txt.
-func rawImageOtaFactory() android.Module {
-	r := &rawImageOta{}
-	r.AddProperties(&r.properties)
-	android.InitAndroidModule(r)
-	return r
-}
-
-func (r *rawImageOta) OutputFiles(tag string) (android.Paths, error) {
-	switch tag {
-	case "":
-		return android.Paths{r.outPayload, r.outProperties}, nil
-	case payloadTag:
-		return android.Paths{r.outPayload}, nil
-	case payloadPropertiesTag:
-		return android.Paths{r.outProperties}, nil
-	default:
-		return nil, fmt.Errorf("unsupported module reference tag %q", tag)
-	}
-}
-
-var _ android.OutputFileProducer = (*rawImageOta)(nil)
-
-func (r *rawImageOta) getCertString(ctx android.BaseModuleContext) string {
-	moduleName := ctx.ModuleName()
-	certificate, overridden := ctx.DeviceConfig().OverrideCertificateFor(moduleName)
-	if overridden {
-		return ":" + certificate
-	}
-	return proptools.String(r.properties.Certificate)
-}
-
-// Returns module->image_name mapping, e.g. "bootimage_soong"->"boot"
-func (r *rawImageOta) goalToImage(ctx android.EarlyModuleContext) map[string]string {
-	ret := map[string]string{}
-	for _, imageGoal := range r.properties.Image_goals {
-		lst := strings.Split(imageGoal, ":")
-		if len(lst) != 2 {
-			ctx.PropertyErrorf("image_goals", "Must be in the form IMAGE_NAME:MODULE")
-			return map[string]string{}
-		}
-		ret[lst[1]] = lst[0]
-	}
-	return ret
-}
-
-func (r *rawImageOta) DepsMutator(ctx android.BottomUpMutatorContext) {
-	// Add dependency to modules in image_goals
-	for module, _ := range r.goalToImage(ctx) {
-		ctx.AddVariationDependencies(nil, rawImageTag, module)
-	}
-	// Add dependency to certificate module, if any.
-	cert := android.SrcIsModule(r.getCertString(ctx))
-	if cert != "" {
-		ctx.AddVariationDependencies(nil, certificateTag, cert)
-	}
-}
-
-func (r *rawImageOta) GenerateAndroidBuildActions(ctx android.ModuleContext) {
-	inputArg := []string{}
-	kwargs := []string{}
-	implicits := android.Paths{}
-
-	// Handle image_goals
-	goalToImage := r.goalToImage(ctx)
-	ctx.VisitDirectDepsWithTag(rawImageTag, func(module android.Module) {
-		depName := ctx.OtherModuleName(module)
-		imgPath := android.OutputFileForModule(ctx, module, "")
-		if imgPath != nil {
-			implicits = append(implicits, imgPath)
-			inputArg = append(inputArg, goalToImage[depName]+":"+imgPath.String())
-		} else {
-			ctx.ModuleErrorf("image dependency %q does not generate any output", depName)
-		}
-	})
-
-	// Handle certificate
-	ctx.VisitDirectDepsWithTag(certificateTag, func(module android.Module) {
-		depName := ctx.OtherModuleName(module)
-		if cert, ok := module.(*java.AndroidAppCertificate); ok {
-			r.pem = cert.Certificate.Pem
-			r.key = cert.Certificate.Key
-		} else {
-			ctx.ModuleErrorf("certificate dependency %q must be an android_app_certificate module", depName)
-		}
-	})
-	r.setCertificateAndPrivateKey(ctx)
-	keyName, keyError := removeCertExt(r.pem)
-	if keyError != nil {
-		ctx.ModuleErrorf("Cannot get certificate to sign the OTA payload binary: " + keyError.Error())
-	}
-	implicits = append(implicits, r.pem, r.key)
-	kwargs = append(kwargs, "--key "+proptools.String(keyName))
-
-	// Set outputs
-	outDir := android.PathForModuleGen(ctx, "payload_files")
-	r.outPayload = outDir.Join(ctx, "payload.bin")
-	r.outProperties = outDir.Join(ctx, "payload_properties.txt")
-
-	ctx.Build(pctx, android.BuildParams{
-		Rule:        otaFromRawImageRule,
-		Description: "Generate OTA from raw image",
-		Implicits:   implicits,
-		Outputs:     android.WritablePaths{r.outPayload, r.outProperties},
-		Args: map[string]string{
-			"kwargs":   strings.Join(kwargs, " "),
-			"outDir":   outDir.String(),
-			"inputArg": strings.Join(inputArg, " "),
-		},
-	})
-}
-
-func (r *rawImageOta) setCertificateAndPrivateKey(ctx android.ModuleContext) {
-	if r.pem == nil {
-		cert := proptools.String(r.properties.Certificate)
-		if cert == "" {
-			pem, key := ctx.Config().DefaultAppCertificate(ctx)
-			r.pem = pem
-			r.key = key
-		} else {
-			defaultDir := ctx.Config().DefaultAppCertificateDir(ctx)
-			r.pem = defaultDir.Join(ctx, cert+".x509.pem")
-			r.key = defaultDir.Join(ctx, cert+".pk8")
-		}
-	}
-}
-
-func removeCertExt(path android.Path) (*string, error) {
-	s := path.String()
-	if strings.HasSuffix(s, ".x509.pem") {
-		return proptools.StringPtr(strings.TrimSuffix(s, ".x509.pem")), nil
-	}
-	return nil, fmt.Errorf("Path %q does not end with .x509.pem", s)
-}
diff --git a/build_gki_apex_manifest.cpp b/build_gki_apex_manifest.cpp
deleted file mode 100644
index 3e6a878..0000000
--- a/build_gki_apex_manifest.cpp
+++ /dev/null
@@ -1,133 +0,0 @@
-//
-// 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.
-//
-
-#include <sysexits.h>
-
-#include <android-base/file.h>
-#include <android-base/logging.h>
-#include <android-base/strings.h>
-#include <gflags/gflags.h>
-#include <json/json.h>
-#include <kver/kernel_release.h>
-#include <kver/kmi_version.h>
-#include <kver/utils.h>
-
-using android::kver::GetFactoryApexVersion;
-using android::kver::KernelRelease;
-using android::kver::KmiVersion;
-
-static constexpr uint64_t UNSTABLE_GENERATION = UINT64_MAX;
-
-namespace {
-
-int CheckKmi(const KernelRelease& kernel_release, const KmiVersion& kmi_version) {
-  const auto& actual_kmi_version = kernel_release.kmi_version();
-  if (actual_kmi_version == kmi_version) {
-    return EX_OK;
-  }
-  if (kmi_version.generation() == UNSTABLE_GENERATION &&
-      kmi_version.version() == actual_kmi_version.version() &&
-      kmi_version.patch_level() == actual_kmi_version.patch_level() &&
-      kmi_version.android_release() == actual_kmi_version.android_release()) {
-    LOG(WARNING) << "Actual KMI version " << actual_kmi_version.string()
-                 << " matches unstable KMI version";
-    return EX_OK;
-  }
-  LOG(ERROR) << "KMI version does not match. Actual: " << actual_kmi_version.string()
-             << ", expected: " << kmi_version.string();
-  return EX_SOFTWARE;
-}
-
-int WriteApexManifest(const std::string& apex_name, Json::UInt64 apex_version,
-                      const std::string& out_file) {
-  Json::Value root;
-  root["name"] = apex_name;
-  root["version"] = apex_version;
-  root["preInstallHook"] = "bin/com.android.gki.preinstall";
-  Json::StreamWriterBuilder factory;
-  std::string json_string = Json::writeString(factory, root);
-  if (!android::base::WriteStringToFile(json_string, out_file)) {
-    PLOG(ERROR) << "Cannot write to " << out_file;
-    return EX_SOFTWARE;
-  }
-  return EX_OK;
-}
-
-}  // namespace
-
-DEFINE_string(kernel_release_file, "",
-              "Input file that contains a kernel release string parsed from the boot image. "
-              "Exactly one of --kernel_release_file or --factory must be set.");
-DEFINE_bool(factory, false,
-            "Set to true for factory APEX package. Exactly one of --kernel_release_file or "
-            "--factory must be set.");
-DEFINE_string(kmi_version, "", "Declared KMI version for this APEX.");
-DEFINE_string(apex_manifest, "", "Output APEX manifest JSON file.");
-DEFINE_uint64(apex_version, GetFactoryApexVersion(),
-              "Override APEX version in APEX manifest. Use factory APEX version if unspecified.");
-
-int main(int argc, char** argv) {
-  gflags::ParseCommandLineFlags(&argc, &argv, true);
-
-  if (FLAGS_kmi_version.empty()) {
-    LOG(ERROR) << "--kmi_version must be set.";
-    return EX_SOFTWARE;
-  }
-  std::string_view kmi_version_sv(FLAGS_kmi_version);
-  std::string kmi_version_string;
-  if (android::base::ConsumeSuffix(&kmi_version_sv, "unstable")) {
-    kmi_version_string = std::string(kmi_version_sv) + std::to_string(UNSTABLE_GENERATION);
-  } else {
-    kmi_version_string = kmi_version_sv;
-  }
-  auto kmi_version = KmiVersion::Parse(kmi_version_string);
-  if (!kmi_version.has_value()) {
-    LOG(ERROR) << "--kmi_version is not a valid KMI version.";
-    return EX_SOFTWARE;
-  }
-
-  if (FLAGS_factory + (!FLAGS_kernel_release_file.empty()) != 1) {
-    LOG(ERROR) << "Exactly one of --kernel_release_file or --factory must be set.";
-    return EX_SOFTWARE;
-  }
-
-  if (!FLAGS_kernel_release_file.empty()) {
-    std::string kernel_release_string;
-    if (!android::base::ReadFileToString(FLAGS_kernel_release_file, &kernel_release_string)) {
-      PLOG(ERROR) << "Cannot read " << FLAGS_kernel_release_file;
-      return EX_SOFTWARE;
-    }
-    auto kernel_release = KernelRelease::Parse(kernel_release_string, true /* allow_suffix */);
-    if (!kernel_release.has_value()) {
-      LOG(ERROR) << kernel_release_string << " is not a valid GKI kernel release string";
-      return EX_SOFTWARE;
-    }
-    int res = CheckKmi(*kernel_release, *kmi_version);
-    if (res != EX_OK) return res;
-  }
-
-  std::string apex_name = GetApexName(*kmi_version);
-  uint64_t apex_version = FLAGS_apex_version;
-
-  if (FLAGS_apex_manifest.empty()) {
-    LOG(WARNING) << "Skip writing APEX manifest because --apex_manifest is not set.";
-  } else {
-    int res = WriteApexManifest(apex_name, apex_version, FLAGS_apex_manifest);
-    if (res != EX_OK) return res;
-  }
-
-  return EX_OK;
-}
diff --git a/com.android.gki.avbpubkey b/com.android.gki.avbpubkey
deleted file mode 100644
index 166d37e..0000000
--- a/com.android.gki.avbpubkey
+++ /dev/null
diff --git a/com.android.gki.pem b/com.android.gki.pem
deleted file mode 100644
index fd85678..0000000
--- a/com.android.gki.pem
+++ /dev/null
@@ -1,51 +0,0 @@
------BEGIN RSA PRIVATE KEY-----
-MIIJKQIBAAKCAgEAqvhdLQls56eMMv6p+c1DoYiWl18TS6cn2MF06A0ZsPu3aHqn
-Tu2xY7o9XkBMrTdq3CXKgz7CtSkWoGOb26Oshz4A/xvDGRtlgi0c93AQO7Mh5U82
-54QWJS6GLx5Tqp45YztX7tfdkUKMFk8xh2wzltRv99s1yX27hApzA1xbx/16nzKj
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-nlkbpFCB+PRz6QKCAQEAyWqaIWNB6sT/mlFWQ3icwSWnFqjJPy7b2dPe4j+k1KSr
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-pmgj6LqAQc1bxqH56OamFDCjid1cgD+p9u1sJFgZL0fglbUvU9EfNzSseHDiZ77b
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-lK4KENDTMoLPpesGGBNF7nimMPIyKcBNGUXZn5ezVf4ds3nNF9gxKK4TJft4ZqG5
-4Jtm5uRTmE14oGrJQ4Giv9XshQydGDUHEfOQDKlAumHxGA4HVEwWfPXgMgmE5L0u
-ugJkWUrIQ583/yaTviOO4d/S1ULD4nIrMqStb+c0drmKBe5xUmpODbKSey6aeAUf
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-yNg8PQDK53B4Ng1U8fSaQ/aucIaD4O4lhig9C/4B1EfpPPY+U8SShXQi/EkEYbHi
-NgENVIT+qFngLSLIZbqrCC3FoEFsB+EoWaB/RHSqyDqkLrPikDt/WSvmODvQNwEZ
-mJFpl7w7hwVAAG7tHa4H9eAn8glV8ReM+yYS2sxi1Q7dBYlrm+FpUSUHJl6w5Ql2
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-mD9HDM7U4vjZLIlVjI9oTUpl54a7yBWuRTNcuLr4toOc8g3NrtVCqoduXKaD
------END RSA PRIVATE KEY-----
diff --git a/download_boot_prebuilt.py b/download_boot_prebuilt.py
deleted file mode 100755
index bd665d7..0000000
--- a/download_boot_prebuilt.py
+++ /dev/null
@@ -1,140 +0,0 @@
-#!/usr/bin/env python3
-#
-# Copyright (C) 2019-2020 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.
-#
-
-import argparse
-import collections
-import functools
-import glob
-import json
-import logging
-import os
-import pathlib
-import re
-import shlex
-import shutil
-import subprocess
-import sys
-import tempfile
-import urllib.request
-
-from concurrent import futures
-from pathlib import Path
-
-BASE_URL = "https://ci.android.com/builds/submitted/{build_id}/{target}/latest/raw"
-SUPPORTED_ARCHS = ["arm64"]
-VARIANTS = ["userdebug"]
-BOOT_PREBUILT_REL_DIR = "packages/modules/BootPrebuilt"
-ANDROID_BUILD_TOP = os.environ["ANDROID_BUILD_TOP"]
-
-logger = logging.getLogger(__name__)
-logging.basicConfig(level=logging.INFO)
-
-def parse_args():
-  parser = argparse.ArgumentParser()
-  parser.add_argument(
-      "build_id",
-      type=int,
-      help="the build id to download the build for, e.g. 6148204")
-  parser.add_argument(
-      "--bug",
-      type=str,
-      default=None,
-      help="optional bug number for git commit.")
-
-  return parser.parse_args()
-
-
-def download_file(url, dest_filename):
-  logger.info("Downloading %s -> %s", url, dest_filename)
-  urllib.request.urlretrieve(url, dest_filename)
-
-
-def get_artifact_download_spec(build_id, device, variant, dest_dir):
-  target = "{}-{}".format(device, variant)
-  url_base = BASE_URL.format(build_id=build_id, target=target)
-  filename = "{}-img-{}.zip".format(device, build_id)
-  url = os.path.join(url_base, filename)
-  dest_filename = os.path.join(dest_dir, filename)
-  return url, dest_filename
-
-
-def update_prebuilt(build_id, boot_prebuilt, ver, arch, variant, bug):
-  device = "aosp_" + arch
-  arch_dir = os.path.join(boot_prebuilt, ver, arch)
-  variant_dir = os.path.join(arch_dir, variant)
-  boot_img_name = "boot-{}.img".format(ver)
-  stored_img_name = "boot-{}.img".format(variant)
-  try:
-    subprocess.check_call(["repo", "start", "boot-prebuilt-{}".format(build_id)], cwd=arch_dir)
-
-    os.makedirs(variant_dir)
-    url, dest_filename = get_artifact_download_spec(build_id, device, variant, variant_dir)
-    download_file(url, dest_filename)
-    args = ["unzip", "-d", variant_dir, dest_filename, boot_img_name]
-    logger.info("Calling: %s", " ".join(args))
-    subprocess.check_call(args)
-    shutil.move(os.path.join(variant_dir, boot_img_name), os.path.join(arch_dir, stored_img_name))
-
-  finally:
-    shutil.rmtree(variant_dir)
-
-    message = """Update prebuilts to {build_id}.
-
-Test: Treehugger
-Bug: {bug}
-""".format(build_id=build_id, bug=bug or "N/A")
-
-    logger.info("Creating commit for %s", arch_dir)
-    subprocess.check_call(["git", "add", "."], cwd=arch_dir)
-    subprocess.check_call(["git", "commit", "-m", message], cwd=arch_dir)
-
-
-def main():
-  args = parse_args()
-  with futures.ThreadPoolExecutor(max_workers=10) as pool:
-    fs = []
-    boot_prebuilt = os.path.join(ANDROID_BUILD_TOP, BOOT_PREBUILT_REL_DIR)
-    for ver in os.listdir(boot_prebuilt):
-      if not re.match(r'\d+[.]\d+', ver):
-        continue
-      for arch in os.listdir(os.path.join(boot_prebuilt, ver)):
-        if arch not in SUPPORTED_ARCHS:
-          continue
-        for variant in VARIANTS:
-          fs.append((ver, arch, pool.submit(update_prebuilt, args.build_id, boot_prebuilt, ver,
-                                            arch, variant, args.bug)))
-
-    futures.wait([f for ver, arch, f in fs])
-    success_dirs = []
-    logger.info("===============")
-    logger.info("Summary:")
-    for ver, arch, future in fs:
-      if future.exception():
-        logger.error("%s/%s: %s", ver, arch, future.exception())
-      else:
-        logger.info("%s/%s: Updated.", ver, arch)
-        success_dirs.append(os.path.join(BOOT_PREBUILT_REL_DIR, ver, arch))
-
-    if success_dirs:
-      args = ["repo", "upload", "--verify", "--hashtag-branch", "--br",
-              "boot-prebuilt-{}".format(args.build_id)] + success_dirs
-      logger.info(" ".join(args))
-      subprocess.check_call(args, cwd=ANDROID_BUILD_TOP)
-
-
-if __name__ == "__main__":
-  sys.exit(main())
diff --git a/extract_img_from_apex.py b/extract_img_from_apex.py
deleted file mode 100644
index 12eb987..0000000
--- a/extract_img_from_apex.py
+++ /dev/null
@@ -1,96 +0,0 @@
-#!/usr/bin/env python3
-
-# 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.
-
-"""
-Extract boot.img from a GKI APEX.
-
-Usage: extract_img_from_apex [--tool host_tool [--tool ...]] \
-           input_gki.apex out_dir
-"""
-
-import logging
-import os
-import sys
-
-import common
-
-APEX_PAYLOAD_FILE = "apex_payload.img"
-APEX_PAYLOAD_BIN_PATH = "/etc/ota/payload.bin"
-
-logger = logging.getLogger(__name__)
-OPTIONS = common.OPTIONS
-
-
-def ExtractImagesFromApex(apex, out_dir):
-  if not os.path.isdir(out_dir):
-    os.makedirs(out_dir)
-  apex_dir = common.UnzipTemp(apex, [APEX_PAYLOAD_FILE])
-  apex_payload = os.path.join(apex_dir, APEX_PAYLOAD_FILE)
-
-  payload_bin = common.MakeTempFile("payload_", ".bin")
-  debugfs_command = ['debugfs', '-R', "dump {} {}".format(
-      APEX_PAYLOAD_BIN_PATH, payload_bin), apex_payload]
-
-  common.RunAndCheckOutput(debugfs_command)
-  assert os.path.getsize(payload_bin) > 0, payload_bin + " is an empty file!"
-
-  boot_img = os.path.join(out_dir, 'boot.img')
-  with open(boot_img, 'w') as _:
-    pass
-
-  delta_generator_command = [
-      'delta_generator',
-      '--is_partial_update=true',
-      '--in_file=' + payload_bin,
-      '--partition_names=boot',
-      '--new_partitions=' + boot_img
-  ]
-  common.RunAndCheckOutput(delta_generator_command)
-
-
-def main(argv):
-  def option_handler(o, a):
-    if o == "--tool":
-      name = os.path.basename(a)
-      common.SetHostToolLocation(name, a)
-    else:
-      return False
-    return True
-
-  args = common.ParseOptions(
-      argv, __doc__,
-      extra_long_opts=["tool="],
-      extra_option_handler=option_handler)
-
-  if len(args) != 2:
-    common.Usage(__doc__)
-    sys.exit(1)
-
-  common.InitLogging()
-
-  ExtractImagesFromApex(args[0], args[1])
-  logger.info("done.")
-
-
-if __name__ == '__main__':
-  try:
-    common.CloseInheritedPipes()
-    main(sys.argv[1:])
-  except common.ExternalError:
-    logger.exception("\n   ERROR:\n")
-    sys.exit(1)
-  finally:
-    common.Cleanup()
diff --git a/ota_from_raw_image.py b/ota_from_raw_image.py
deleted file mode 100644
index acd0697..0000000
--- a/ota_from_raw_image.py
+++ /dev/null
@@ -1,113 +0,0 @@
-#!/usr/bin/env python3
-
-# 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.
-
-"""
-Generate payload.bin from a single image.
-"""
-
-import argparse
-import logging
-import os
-import re
-import shutil
-import sys
-from zipfile import ZipFile
-
-import common
-from ota_from_target_files import (Payload, PayloadSigner)
-
-logger = logging.getLogger(__name__)
-OPTIONS = common.OPTIONS
-
-
-def _ParseArgs():
-  parser = argparse.ArgumentParser(description=__doc__)
-  parser.add_argument("--tools", metavar="PATH", type=str, nargs="*",
-                      help="A list of real paths of tools that this script depends on.")
-  parser.add_argument("--key", type=str,
-                      help="Key to use to sign the package. If unspecified, script does not sign "
-                           "the package and payload_properties.txt is not generated.")
-  parser.add_argument("--out", type=str, required=True,
-                      help="Required output directory to payload.bin and payload_properties.txt")
-  parser.add_argument("input", metavar="NAME:IMAGE", nargs="+",
-                      help="Name of the image and path to the image, e.g. boot:path/to/boot.img")
-  args = parser.parse_args()
-
-  return args
-
-
-def _PrepareEnvironment(args):
-  common.InitLogging()
-  if not args.tools:
-    return
-  for path in args.tools:
-    name = os.path.basename(path)
-    # Use absolute path because GetBootImageTimestamp changes cwd when running some tools.
-    common.SetHostToolLocation(name, os.path.abspath(path))
-    # brillo_update_payload is a shell script that depends on this environment variable.
-    if name == "delta_generator":
-      os.environ["GENERATOR"] = path
-
-
-def CreateOtaFromRawImages(args):
-  _PrepareEnvironment(args)
-
-  tf = common.MakeTempFile("target_files", ".zip")
-  payload_additional_args = ["--is_partial_update", "true"]
-  with ZipFile(tf, "w") as zip:
-    names = []
-    for pair_str in args.input:
-      pair = pair_str.split(":")
-      assert len(pair) == 2, "Incorrect format: " + pair_str
-      name, img_path = tuple(pair)
-      zip.write(img_path, arcname=os.path.join("IMAGES", name + ".img"))
-      names.append(name)
-      if name == "boot":
-        timestamp = common.GetBootImageTimestamp(img_path)
-        assert timestamp is not None, "Cannot extract timestamp from boot image"
-        payload_additional_args += ["--partition_timestamps",
-                                    "boot:" + str(timestamp)]
-
-    zip.writestr("META/ab_partitions.txt", "\n".join(names) + "\n")
-    zip.writestr("META/dynamic_partitions_info.txt", """
-virtual_ab=true
-super_partition_groups=
-    """)
-
-  payload = Payload()
-  payload.Generate(tf, None, payload_additional_args)
-
-  if args.key:
-    OPTIONS.package_key = args.key
-    OPTIONS.key_passwords = common.GetKeyPasswords([OPTIONS.package_key])
-    payload_signer = PayloadSigner()
-    payload.Sign(payload_signer)
-
-  shutil.copy(payload.payload_file, os.path.join(args.out, "payload.bin"))
-  if payload.payload_properties:
-    shutil.copy(payload.payload_properties, os.path.join(args.out, "payload_properties.txt"))
-
-
-if __name__ == "__main__":
-  try:
-    common.CloseInheritedPipes()
-    args = _ParseArgs()
-    CreateOtaFromRawImages(args)
-  except common.ExternalError:
-    logger.exception("\n   ERROR:\n")
-    sys.exit(1)
-  finally:
-    common.Cleanup()
diff --git a/preinstall.sh b/preinstall.sh
deleted file mode 100644
index fbd16e1..0000000
--- a/preinstall.sh
+++ /dev/null
@@ -1,39 +0,0 @@
-#!/system/bin/sh
-
-# sleep_exit [<exit_code>]
-function sleep_exit() {
-  # Sleep before exit to ensure logs flushes.
-  sleep 5s
-  exit $@
-}
-
-# log_gki <priority> <message>
-function log_gki() {
-  log -t gki -p $@
-}
-
-log_gki i "GKI APEX preinstall hook starting."
-
-mydir=$(dirname $(dirname $(realpath "$0")))
-if [[ $(dirname $mydir) != "/apex" ]] || [[ $(basename $mydir) != com.android.gki.* ]]; then
-  log_gki e "This script must be installed under /apex/com.android.gki.*"
-  sleep_exit 1
-fi
-
-# The pre-installed APEX does not contain any OTA payload. Just skip installing anything.
-if [[ ! -f ${mydir}/etc/ota/payload.bin ]]; then
-  log_gki e "No payload.bin found."
-  sleep_exit 1
-fi
-
-log_gki i "Applying payload.";
-
-if ! ${mydir}/bin/update_engine_stable_client \
-      --payload ${mydir}/etc/ota/payload.bin \
-      --headers "$(cat ${mydir}/etc/ota/payload_properties.txt)"; then
-    log_gki e "OTA failed"
-    sleep_exit 1
-fi
-
-log_gki i "OTA successful"
-sleep_exit 0
diff --git a/test/Android.bp b/test/Android.bp
deleted file mode 100644
index 483b6d9..0000000
--- a/test/Android.bp
+++ /dev/null
@@ -1,55 +0,0 @@
-// 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.
-
-// A list of names of test APEXes for GkiInstallTest to instantiate test cases.
-package {
-    default_applicable_licenses: ["Android-Apache-2.0"],
-}
-
-genrule {
-    name: "gki_install_test_file_list",
-    srcs: [":gki_install_test_files"],
-    out: ["gki_install_test_file_list.txt"],
-    cmd: "for file in $(in); do basename $${file} >> $(out); done",
-}
-
-java_test_host {
-    name: "GkiInstallTest",
-    srcs: [
-        "src/**/*.java",
-        ":gki_install_test_file_list",
-    ],
-    test_suites: [
-        "device-tests",
-    ],
-    libs: [
-        "compatibility-tradefed",
-        "tradefed",
-    ],
-    static_libs: [
-        "cts-host-utils",
-        "hamcrest-library",
-    ],
-    data: [":gki_install_test_files"],
-    java_resources: [":gki_install_test_file_list"],
-}
-
-// Prebuilts
-
-prebuilt_gki_apex {
-    name: "com.android.gki.kmi_5_4_android12_0_test_prebuilt",
-    installable: false,
-    kmi_version: "5.4-android12-0",
-    src: "com.android.gki.kmi_5_4_android12_0_test_prebuilt.apex",
-}
diff --git a/test/AndroidTest.xml b/test/AndroidTest.xml
deleted file mode 100644
index 5eceeb2..0000000
--- a/test/AndroidTest.xml
+++ /dev/null
@@ -1,21 +0,0 @@
-<?xml version="1.0" encoding="utf-8"?>
-<!-- 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.
--->
-
-<configuration description="GKI Install test">
-    <test class="com.android.tradefed.testtype.HostTest" >
-        <option name="jar" value="GkiInstallTest.jar" />
-    </test>
-</configuration>
diff --git a/test/com.android.gki.kmi_5_4_android12_0_test_prebuilt.apex b/test/com.android.gki.kmi_5_4_android12_0_test_prebuilt.apex
deleted file mode 100644
index 1c01dd9..0000000
--- a/test/com.android.gki.kmi_5_4_android12_0_test_prebuilt.apex
+++ /dev/null
diff --git a/test/src/com/android/gki/tests/GkiInstallTest.java b/test/src/com/android/gki/tests/GkiInstallTest.java
deleted file mode 100644
index 0b00ba6..0000000
--- a/test/src/com/android/gki/tests/GkiInstallTest.java
+++ /dev/null
@@ -1,318 +0,0 @@
-/*
- * 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 com.android.gki.tests;
-
-import static org.hamcrest.Matchers.anyOf;
-import static org.hamcrest.Matchers.containsString;
-import static org.hamcrest.Matchers.either;
-import static org.hamcrest.Matchers.everyItem;
-import static org.hamcrest.Matchers.greaterThan;
-import static org.hamcrest.Matchers.is;
-import static org.hamcrest.Matchers.isIn;
-import static org.hamcrest.Matchers.notNullValue;
-import static org.hamcrest.io.FileMatchers.aFileWithSize;
-import static org.junit.Assert.assertNotNull;
-import static org.junit.Assert.assertNull;
-import static org.junit.Assert.assertThat;
-import static org.junit.Assert.assertTrue;
-import static org.junit.Assume.assumeThat;
-import static org.junit.Assert.fail;
-import static org.junit.Assume.assumeTrue;
-
-import static java.util.stream.Collectors.toList;
-
-import android.cts.host.utils.DeviceJUnit4ClassRunnerWithParameters;
-import android.cts.host.utils.DeviceJUnit4Parameterized;
-
-import com.android.compatibility.common.tradefed.build.CompatibilityBuildHelper;
-import com.android.tradefed.device.ITestDevice;
-import com.android.tradefed.device.ITestDevice.ApexInfo;
-import com.android.tradefed.log.LogUtil.CLog;
-import com.android.tradefed.testtype.junit4.BaseHostJUnit4Test;
-
-import org.junit.After;
-import org.junit.Before;
-import org.junit.Test;
-import org.junit.runner.RunWith;
-import org.junit.runners.Parameterized.Parameter;
-import org.junit.runners.Parameterized.Parameters;
-import org.junit.runners.Parameterized.UseParametersRunnerFactory;
-
-import java.nio.file.Path;
-import java.nio.file.Paths;
-import java.io.File;
-import java.util.ArrayList;
-import java.util.HashSet;
-import java.util.List;
-import java.util.Set;
-import java.util.Scanner;
-import java.util.regex.Matcher;
-import java.util.regex.Pattern;
-
-@RunWith(DeviceJUnit4Parameterized.class)
-@UseParametersRunnerFactory(DeviceJUnit4ClassRunnerWithParameters.RunnerFactory.class)
-public class GkiInstallTest extends BaseHostJUnit4Test {
-
-    // Keep in sync with gki.go.
-    private static final String HIGH_SUFFIX = "_test_high.apex";
-    private static final String LOW_SUFFIX = "_test_low.apex";
-    private static final long TEST_HIGH_VERSION = 1000000000L;
-
-    // Timeout between device online for adb commands and boot completed flag is set.
-    private static final long DEVICE_AVAIL_TIMEOUT_MS = 180000; // 3mins
-    // Timeout for `adb install`.
-    private static final long INSTALL_TIMEOUT_MS = 600000; // 10mins
-
-    @Parameter
-    public String mFileName;
-
-    private String mPackageName;
-    private File mApexFile;
-    private boolean mExpectInstallSuccess;
-    private final Set<String> mOverlayfs = new HashSet();
-
-    @Parameters(name = "{0}")
-    public static Iterable<String> getTestFileNames() {
-        try (Scanner scanner = new Scanner(
-                GkiInstallTest.class.getClassLoader().getResourceAsStream(
-                        "gki_install_test_file_list.txt"))) {
-            List<String> list = new ArrayList<>();
-            scanner.forEachRemaining(list::add);
-            return list;
-        }
-    }
-
-    @Before
-    public void setUp() throws Exception {
-        inferPackageName();
-        skipTestIfPackageNotInstalled();
-        skipTestIfWrongKernelVersion();
-        findTestApexFile();
-        prepareOverlayfs();
-    }
-
-    /** Set mPackageName and mExpectInstallSuccess according to mFileName. */
-    private void inferPackageName() throws Exception {
-        if (mFileName.endsWith(HIGH_SUFFIX)) {
-            mPackageName = mFileName.substring(0, mFileName.length() - HIGH_SUFFIX.length());
-            mExpectInstallSuccess = true;
-        } else if (mFileName.endsWith(LOW_SUFFIX)) {
-            mPackageName = mFileName.substring(0, mFileName.length() - LOW_SUFFIX.length());
-            mExpectInstallSuccess = false;
-        } else {
-            fail("Unrecognized test data file: " + mFileName);
-        }
-    }
-
-    /** Skip the test if mPackageName is not installed on the device. */
-    private void skipTestIfPackageNotInstalled() throws Exception {
-        CLog.i("Wait for device to be available for %d ms...", DEVICE_AVAIL_TIMEOUT_MS);
-        getDevice().waitForDeviceAvailable(DEVICE_AVAIL_TIMEOUT_MS);
-        CLog.i("Device is available after %d ms", DEVICE_AVAIL_TIMEOUT_MS);
-
-        // Skip if the device does not support this APEX package.
-        CLog.i("Checking if %s is installed on the device.", mPackageName);
-        ApexInfo oldApexInfo = getApexInfo(getDevice(), mPackageName);
-        assumeThat(oldApexInfo, is(notNullValue()));
-        assumeThat(oldApexInfo.name, is(mPackageName));
-    }
-
-    /**
-     * Skip the test if APEX package name does not match kernel version.
-     *
-     * Due to b/186566367, on mixed builds, the wrong GKI APEX may be installed. In that case, just
-     * skip the test.
-     *
-     * As an exception, the package may contain "unstable" as the generation. When this is the
-     * case, any generation number in kernel release is considered a match.
-     *
-     * @throws Exception
-     */
-    private void skipTestIfWrongKernelVersion() throws Exception {
-        Pattern packagePattern = Pattern.compile(
-                "^com\\.android\\.gki\\.kmi_(?<w>\\d+)_(?<x>\\d+)_(?<z>android\\d+)_" +
-                "(?<k>\\d+|unstable)$");
-        Matcher packageMatcher = packagePattern.matcher(mPackageName);
-        assertTrue(packageMatcher.matches());
-
-        Pattern kernelPattern = Pattern.compile(
-                "^Linux version (?<fullrel>(?<w>\\d+)\\.(?<x>\\d+)\\.(?<y>\\d+)-(?<z>android\\d+)"
-                        + "-(?<k>\\d+))");
-        String kernel = getDevice().executeShellCommand("cat /proc/version");
-        Matcher kernelMatcher = kernelPattern.matcher(kernel);
-        assumeTrue("Not GKI: " + kernel, kernelMatcher.find());
-
-        String desc = String.format("package %s vs kernel release %s", mPackageName,
-                kernelMatcher.group("fullrel"));
-
-        CLog.i("Checking: %s", desc);
-
-        assumeThat(desc, packageMatcher.group("w"), is(kernelMatcher.group("w")));
-        assumeThat(desc, packageMatcher.group("x"), is(kernelMatcher.group("x")));
-        assumeThat(desc, packageMatcher.group("z"), is(kernelMatcher.group("z")));
-        assumeThat(desc, packageMatcher.group("k"),
-                anyOf(is("unstable"), is(kernelMatcher.group("k"))));
-    }
-
-    /** Find the corresponding APEX test file with mFileName. */
-    private void findTestApexFile() throws Exception {
-        // Find the APEX file.
-        CompatibilityBuildHelper buildHelper = new CompatibilityBuildHelper(getBuild());
-        mApexFile = buildHelper.getTestFile(mFileName);
-
-        // There may be empty .apex files in the directory for disabled APEXes. But if the device
-        // is known to install the package, the test must be built with non-empty APEXes for this
-        // particular package.
-        assertThat("Test is not built properly. It does not contain a non-empty " + mFileName,
-                mApexFile, is(aFileWithSize(greaterThan(0L))));
-    }
-
-    /**
-     * Record what partitions have overlayfs set up. Then, tear down overlayfs because it may
-     * make OTA fail.
-     *
-     * Usually, the test does not require root to run, but if the device has overlayfs set up,
-     * the test assumes that the device has root functionality, and attempts to tear down
-     * overlayfs before the test starts.
-     * Note that this function immediately reboots after enabling adb root to ensure the test runs
-     * with the same permission before it is called.
-     */
-    private void prepareOverlayfs() throws Exception {
-        mOverlayfs.addAll(getOverlayfsState(getDevice()));
-
-        if (!mOverlayfs.isEmpty()) {
-            getDevice().enableAdbRoot();
-            getDevice().executeAdbCommand("enable-verity");
-            rebootUntilAvailable(getDevice(), DEVICE_AVAIL_TIMEOUT_MS);
-        }
-    }
-
-    @Test
-    public void testInstallAndReboot() throws Exception {
-        CLog.i("Installing %s with %d ms timeout", mApexFile, INSTALL_TIMEOUT_MS);
-        String result = getDevice().installPackage(mApexFile, false,
-                "--staged-ready-timeout", String.valueOf(INSTALL_TIMEOUT_MS));
-        if (!mExpectInstallSuccess) {
-            assertNotNull("Should not be able to install downgrade package", result);
-            assertThat(result, either(containsString("Downgrade of APEX package " + mPackageName
-                    + " is not allowed.")).or(containsString("INSTALL_FAILED_VERSION_DOWNGRADE")));
-            return;
-        }
-
-        assertNull("Installation failed with " + result, result);
-        rebootUntilAvailable(getDevice(), DEVICE_AVAIL_TIMEOUT_MS);
-
-        ApexInfo newApexInfo = getApexInfo(getDevice(), mPackageName);
-        assertNotNull(newApexInfo);
-        assertThat(newApexInfo.versionCode, is(TEST_HIGH_VERSION));
-    }
-
-    /**
-     * Restore overlayfs on partitions.
-     *
-     * Usually, tearDown() does not require root to run, but if the device had overlayfs set up
-     * before the test has started,
-     * the test assumes that the device has root functionality, and attempts to re-set up
-     * overlayfs after the test ends.
-     * Note that tearDown() immediately reboots after enabling adb root to ensure the test ends up
-     * with the same permission before the test has started.
-     */
-    @After
-    public void tearDown() throws Exception {
-        // Restore overlayfs for partitions that the test knows of.
-        CLog.i("Test ends, now restoring overlayfs partitions %s.", mOverlayfs);
-        if (mOverlayfs.contains("system")) {
-            getDevice().enableAdbRoot();
-            getDevice().remountSystemWritable();
-        }
-        if (mOverlayfs.contains("vendor")) {
-            getDevice().enableAdbRoot();
-            getDevice().remountVendorWritable();
-        }
-        CLog.i("Restoring overlayfs partition ends, now rebooting.");
-
-        // Reboot device no matter what to avoid interference.
-        rebootUntilAvailable(getDevice(), DEVICE_AVAIL_TIMEOUT_MS);
-
-        // remount*Writable should have enabled overlayfs for all necessary partitions. If not,
-        // throw an error.
-        Set<String> newOverlayfsState = getOverlayfsState(getDevice());
-        assertThat("Some partitions did not restore overlayfs properly. Before test: " + mOverlayfs
-                        + ", after test: " + newOverlayfsState, mOverlayfs,
-                everyItem(isIn(newOverlayfsState)));
-        CLog.i("All overlayfs states are restored.");
-    }
-
-    /**
-     * @param device the device under test
-     * @param packageName the package name to look for
-     * @return The {@link ApexInfo} of the APEX named {@code packageName} on the
-     * {@code device}, or {@code null} if the device does not have the APEX installed.
-     * @throws Exception an error has occurred.
-     */
-    private static ApexInfo getApexInfo(ITestDevice device, String packageName)
-            throws Exception {
-        assertNotNull(packageName);
-        List<ApexInfo> list = device.getActiveApexes().stream().filter(
-                apexInfo -> packageName.equals(apexInfo.name)).collect(toList());
-        if (list.isEmpty()) return null;
-        assertThat(list.size(), is(1));
-        return list.get(0);
-    }
-
-    /**
-     * Similar to device.reboot(), but with a timeout on waitForDeviceAvailable. Note that
-     * the timeout does not include the rebootUntilOnline() call.
-     *
-     * @param device    the device under test
-     * @param timeoutMs timeout for waitForDeviceAvailable() call
-     * @throws Exception an error has occurred.
-     */
-    private static void rebootUntilAvailable(ITestDevice device, long timeoutMs)
-            throws Exception {
-        CLog.i("Reboot and waiting for device to be online");
-        device.rebootUntilOnline();
-        CLog.i("Device online, wait for device to be available for %d ms...", timeoutMs);
-        device.waitForDeviceAvailable(timeoutMs);
-        CLog.i("Device is available after %d ms", timeoutMs);
-    }
-    
-    /**
-     * Get all partitions that have overlayfs setup. Parse /proc/mounts and if it finds lines like:
-     * {@code overlayfs /vendor ...}, then put {@code vendor} in the returned set.
-     * @param device the device under test
-     * @return a list of partitions like {@code system}, {@code vendor} that has overlayfs set up
-     * @throws Exception an error has occurred.
-     */
-    private static Set<String> getOverlayfsState(ITestDevice device) throws Exception {
-        Set<String> ret = new HashSet();
-        File mounts = device.pullFile("/proc/mounts");
-        try (Scanner scanner = new Scanner(mounts)) {
-            while (scanner.hasNextLine()) {
-                String line = scanner.nextLine();
-                String[] tokens = line.split("\\s");
-                if (tokens.length < 2) continue;
-                if (!"overlay".equals(tokens[0])) continue;
-                Path path = Paths.get(tokens[1]);
-                if (path.getNameCount() == 0) continue;
-                ret.add(path.getName(0).toString());
-            }
-        }
-        CLog.i("Device has overlayfs set up on partitions %s", ret);
-        return ret;
-    }
-}