private static void performMigration(Context context) {
final SharedPreferences appPrefs = forApp(context, disableMigrations);
final int currentVersion = appPrefs.getInt(PREFS_VERSION_KEY, 0);
Log.d(LOGTAG, "Current version = " + currentVersion + ", prefs version = " + PREFS_VERSION);
if (currentVersion == PREFS_VERSION) {
return;
}
Log.d(LOGTAG, "Performing migration");
final Editor appEditor = appPrefs.edit();
// The migration always moves prefs to the default profile, not
// the current one. We might have to revisit this if we ever support
// multiple profiles.
final String defaultProfileName;
try {
defaultProfileName = GeckoProfile.getDefaultProfileName(context);
} catch (Exception e) {
throw new IllegalStateException("Failed to get default profile name for migration");
}
final Editor profileEditor =
forProfileName(context, defaultProfileName, disableMigrations).edit();
final Editor crashEditor = forCrashReporter(context, disableMigrations).edit();
List<String> profileKeys;
Editor pmEditor = null;
for (int v = currentVersion + 1; v <= PREFS_VERSION; v++) {
Log.d(LOGTAG, "Migrating to version = " + v);
switch (v) {
case 1:
profileKeys = Arrays.asList(PROFILE_MIGRATIONS_0_TO_1);
pmEditor = migrateFromPreferenceManager(context, appEditor, profileEditor, profileKeys);
break;
case 2:
profileKeys = Arrays.asList(PROFILE_MIGRATIONS_1_TO_2);
migrateCrashReporterSettings(appPrefs, appEditor, crashEditor, profileKeys);
break;
}
}
// Update prefs version accordingly.
appEditor.putInt(PREFS_VERSION_KEY, PREFS_VERSION);
appEditor.apply();
profileEditor.apply();
crashEditor.apply();
if (pmEditor != null) {
pmEditor.apply();
}
Log.d(LOGTAG, "All keys have been migrated");
}
