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Backup database in next release

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This commit is contained in:
NerdNumber9 2019-04-18 17:47:13 -04:00
parent 8d85ec3cd9
commit ebb1022100
1 changed files with 20 additions and 1 deletions
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21
app/src/main/java/exh/EXHMigrations.kt
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@ -1,5 +1,6 @@
package exh
import android.content.Context
import com.elvishew.xlog.XLog
import com.pushtorefresh.storio.sqlite.queries.Query
import com.pushtorefresh.storio.sqlite.queries.RawQuery
@ -15,6 +16,7 @@ import eu.kanade.tachiyomi.data.preference.getOrDefault
import exh.source.BlacklistedSources
import rx.Observable
import uy.kohesive.injekt.injectLazy
import java.io.File
import java.net.URI
import java.net.URISyntaxException
@ -23,7 +25,7 @@ object EXHMigrations {
private val logger = XLog.tag("EXHMigrations")
private const val CURRENT_MIGRATION_VERSION = 1
private const val CURRENT_MIGRATION_VERSION = 2
/**
* Performs a migration when the application is updated.
@ -71,6 +73,11 @@ object EXHMigrations {
}
}
// Backup database in next release
if (oldVersion < 2) {
backupDatabase(context, oldVersion)
}
preferences.eh_lastVersionCode().set(CURRENT_MIGRATION_VERSION)
return true
@ -117,6 +124,18 @@ object EXHMigrations {
return Observable.just(backupEntry)
}
private fun backupDatabase(context: Context, oldMigrationVersion: Int) {
val backupLocation = File(File(context.filesDir, "exh_db_bck"), "$oldMigrationVersion.bck.db")
if(backupLocation.exists()) return // Do not backup same version twice
val dbLocation = context.getDatabasePath(db.lowLevel().sqliteOpenHelper().databaseName)
try {
dbLocation.copyTo(backupLocation, overwrite = true)
} catch(t: Throwable) {
XLog.w("Failed to backup database!")
}
}
private fun getUrlWithoutDomain(orig: String): String {
return try {
val uri = URI(orig)