Updater: Allow toggling A/B perf mode

Change-Id: I380a39bf6008b341c8005ac548d42d2413d0d643

res/layout/preferences_dialog.xml

@@ -30,4 +30,12 @@
         android:layout_marginBottom="16dp"
         android:text="@string/menu_mobile_data_warning"
         android:textSize="16sp" />
+
+    <Switch
+        android:id="@+id/preferences_ab_perf_mode"
+        android:layout_width="match_parent"
+        android:layout_height="wrap_content"
+        android:layout_marginBottom="16dp"
+        android:text="@string/menu_ab_perf_mode"
+        android:textSize="16sp" />
 </LinearLayout>

res/values/strings.xml

@@ -70,6 +70,7 @@
     <string name="menu_export_update">Export update</string>
     <string name="menu_show_changelog">Show changelog</string>
     <string name="menu_changelog_url" translatable="false">https://download.lineageos.org/<xliff:g id="device_name">%1$s</xliff:g>/changes</string>
+    <string name="menu_ab_perf_mode">Install updates faster</string>
 
     <string name="snack_updates_found">New updates found</string>
     <string name="snack_no_updates_found">No new updates found</string>

src/org/lineageos/updater/UpdatesActivity.java

@@ -409,11 +409,17 @@ public class UpdatesActivity extends UpdatesListActivity {
         Switch autoCheck = view.findViewById(R.id.preferences_auto_updates_check);
         Switch autoDelete = view.findViewById(R.id.preferences_auto_delete_updates);
         Switch dataWarning = view.findViewById(R.id.preferences_mobile_data_warning);
+        Switch abPerfMode = view.findViewById(R.id.preferences_ab_perf_mode);
+
+        if (!Utils.isABDevice()) {
+            abPerfMode.setVisibility(View.GONE);
+        }
 
         SharedPreferences prefs = PreferenceManager.getDefaultSharedPreferences(this);
         autoCheck.setChecked(prefs.getBoolean(Constants.PREF_AUTO_UPDATES_CHECK, true));
         autoDelete.setChecked(prefs.getBoolean(Constants.PREF_AUTO_DELETE_UPDATES, false));
         dataWarning.setChecked(prefs.getBoolean(Constants.PREF_MOBILE_DATA_WARNING, true));
+        abPerfMode.setChecked(prefs.getBoolean(Constants.PREF_AB_PERF_MODE, false));
 
         new AlertDialog.Builder(this)
                 .setTitle(R.string.menu_preferences)
@@ -426,6 +432,8 @@ public class UpdatesActivity extends UpdatesListActivity {
                                     autoDelete.isChecked())
                             .putBoolean(Constants.PREF_MOBILE_DATA_WARNING,
                                     dataWarning.isChecked())
+                            .putBoolean(Constants.PREF_AB_PERF_MODE,
+                                    abPerfMode.isChecked())
                             .apply();
 
                     if (autoCheck.isChecked()) {
@@ -434,6 +442,9 @@ public class UpdatesActivity extends UpdatesListActivity {
                         UpdatesCheckReceiver.cancelRepeatingUpdatesCheck(this);
                         UpdatesCheckReceiver.cancelUpdatesCheck(this);
                     }
+
+                    boolean enableABPerfMode = abPerfMode.isChecked();
+                    mUpdaterService.getUpdaterController().setPerformanceMode(enableABPerfMode);
                 })
                 .show();
     }

src/org/lineageos/updater/controller/ABUpdateInstaller.java

@@ -200,6 +200,10 @@ class ABUpdateInstaller {
             }
         }
 
+        boolean enableABPerfMode = PreferenceManager.getDefaultSharedPreferences(mContext)
+                .getBoolean(Constants.PREF_AB_PERF_MODE, false);
+        mUpdateEngine.setPerformanceMode(enableABPerfMode);
+
         String zipFileUri = "file://" + file.getAbsolutePath();
         mUpdateEngine.applyPayload(zipFileUri, offset, 0, headerKeyValuePairs);
 
@@ -265,4 +269,8 @@ class ABUpdateInstaller {
 
         return true;
     }
+
+    public void setPerformanceMode(boolean enable) {
+        mUpdateEngine.setPerformanceMode(enable);
+    }
 }

src/org/lineageos/updater/controller/UpdaterController.java

@@ -525,4 +525,11 @@ public class UpdaterController {
     public boolean isWaitingForReboot(String downloadId) {
         return ABUpdateInstaller.isWaitingForReboot(mContext, downloadId);
     }
+
+    public void setPerformanceMode(boolean enable) {
+        if (!Utils.isABDevice()) {
+            return;
+        }
+        ABUpdateInstaller.getInstance(mContext, this).setPerformanceMode(enable);
+    }
 }

src/org/lineageos/updater/misc/Constants.java

@@ -26,11 +26,13 @@ public final class Constants {
     public static final String PREF_LAST_UPDATE_CHECK = "last_update_check";
     public static final String PREF_AUTO_UPDATES_CHECK = "auto_updates_check";
     public static final String PREF_AUTO_DELETE_UPDATES = "auto_delete_updates";
+    public static final String PREF_AB_PERF_MODE = "ab_perf_mode";
     public static final String PREF_MOBILE_DATA_WARNING = "pref_mobile_data_warning";
     public static final String PREF_NEEDS_REBOOT_ID = "needs_reboot_id";
 
     public static final String UNCRYPT_FILE_EXT = ".uncrypt";
 
+    public static final String PROP_AB_DEVICE = "ro.build.ab_update";
     public static final String PROP_BUILD_DATE = "ro.build.date.utc";
     public static final String PROP_BUILD_VERSION = "ro.lineage.build.version";
     public static final String PROP_BUILD_VERSION_INCREMENTAL = "ro.build.version.incremental";

src/org/lineageos/updater/misc/Utils.java

@@ -334,6 +334,10 @@ public class Utils {
         throw new IllegalStateException();
     }
 
+    public static boolean isABDevice() {
+        return SystemProperties.getBoolean(Constants.PROP_AB_DEVICE, false);
+    }
+
     public static boolean isABUpdate(ZipFile zipFile) {
         return zipFile.getEntry(Constants.AB_PAYLOAD_BIN_PATH) != null &&
                 zipFile.getEntry(Constants.AB_PAYLOAD_PROPERTIES_PATH) != null;