Store the event of settings db downgrade (264c7a90) · Commits · e / os / android_frameworks_base

core/java/android/provider/Settings.java

+10 −0

Original line number	Diff line number	Diff line
		@@ -8720,6 +8720,16 @@ public final class Settings {
		*/
		public static final String RETAIL_DEMO_MODE_CONSTANTS = "retail_demo_mode_constants";

		/**
		* The reason for the settings database being downgraded. This is only for
		* troubleshooting purposes and its value should not be interpreted in any way.
		*
		* Type: string
		*
		* @hide
		*/
		public static final String DATABASE_DOWNGRADE_REASON = "database_downgrade_reason";

		/**
		* Settings to backup. This is here so that it's in the same place as the settings
		* keys and easy to update.

+8 −2

Original line number	Diff line number	Diff line
		@@ -114,7 +114,7 @@ import java.util.regex.Pattern;
		public class SettingsProvider extends ContentProvider {
		private static final boolean DEBUG = false;

		private static final boolean DROP_DATABASE_ON_MIGRATION = !Build.IS_DEBUGGABLE;
		private static final boolean DROP_DATABASE_ON_MIGRATION = true;

		private static final String LOG_TAG = "SettingsProvider";

		@@ -2142,6 +2142,12 @@ public class SettingsProvider extends ContentProvider {

		// Now upgrade should work fine.
		onUpgradeLocked(mUserId, oldVersion, newVersion);

		// Make a note what happened, so we don't wonder why data was lost
		String reason = "Settings rebuilt! Current version: "
		+ curVersion + " while expected: " + newVersion;
		getGlobalSettingsLocked().insertSettingLocked(
		Settings.Global.DATABASE_DOWNGRADE_REASON, reason, "android");
		}

		// Set the global settings version if owner.
		@@ -2411,7 +2417,7 @@ public class SettingsProvider extends ContentProvider {
		}

		if (currentVersion != newVersion) {
		Slog.w("SettingsProvider", "warning: upgrading settings database to version "
		Slog.wtf("SettingsProvider", "warning: upgrading settings database to version "
		+ newVersion + " left it at "
		+ currentVersion + " instead; this is probably a bug", new Throwable());
		if (DEBUG) {