Test

build.gradle

@@ -48,6 +48,7 @@ dependencies {
 
     implementation group: 'com.zaxxer', name: 'HikariCP', version: '4.0.1'
     implementation group: "com.h2database", name: "h2", version: "1.4.200"
+    implementation group: 'org.xerial', name: 'sqlite-jdbc', version: '3.34.0'
     implementation "org.ktorm:ktorm-core:$ktorm_version"
     implementation "org.ktorm:ktorm-jackson:$ktorm_version"
 

src/main/kotlin/mdnet/MangaDexClient.kt

@@ -65,9 +65,11 @@ class MangaDexClient(private val settingsFile: File, databaseFolder: Path, cache
 
         LOGGER.info { "Client settings loaded: $settings" }
 
+        Class.forName("org.sqlite.JDBC")
+
         val config = HikariConfig()
-        val db = databaseFolder.resolve("metadata")
-        config.jdbcUrl = "jdbc:h2:$db"
+        val db = databaseFolder.resolve("metadata.db")
+        config.jdbcUrl = "jdbc:sqlite:$db"
         config.addDataSourceProperty("cachePrepStmts", "true")
         config.addDataSourceProperty("prepStmtCacheSize", "100")
         config.addDataSourceProperty("prepStmtCacheSqlLimit", "1000")

src/main/kotlin/mdnet/Migrator.kt

@@ -0,0 +1,57 @@
+/*
+Mangadex@Home
+Copyright (c) 2020, MangaDex Network
+This file is part of MangaDex@Home.
+
+MangaDex@Home is free software: you can redistribute it and/or modify
+it under the terms of the GNU General Public License as published by
+the Free Software Foundation, either version 3 of the License, or
+(at your option) any later version.
+
+MangaDex@Home is distributed in the hope that it will be useful,
+but WITHOUT ANY WARRANTY; without even the implied warranty of
+MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+GNU General Public License for more details.
+
+You should have received a copy of the GNU General Public License
+along with this MangaDex@Home.  If not, see <http://www.gnu.org/licenses/>.
+*/
+package mdnet
+
+import mdnet.cache.DbImage
+import mdnet.cache.INIT_TABLE
+import org.ktorm.database.Database
+import org.ktorm.dsl.*
+import java.nio.file.Paths
+
+fun main() {
+    Class.forName("org.sqlite.JDBC")
+
+    val sqliteDb = Paths.get("./metadata.db")
+
+    val sqlite = Database.connect("jdbc:sqlite:$sqliteDb")
+    sqlite.useConnection { conn ->
+        conn.prepareStatement(INIT_TABLE).use {
+            it.execute()
+        }
+    }
+
+    val db = Paths.get("./metadata")
+
+    val h2 = Database.connect("jdbc:h2:$db")
+    h2.useConnection { conn ->
+        conn.prepareStatement(INIT_TABLE).use {
+            it.execute()
+        }
+    }
+
+    sqlite.batchInsert(DbImage) {
+        h2.from(DbImage).select().forEach { data ->
+            item {
+                set(DbImage.id, data[DbImage.id])
+                set(DbImage.accessed, data[DbImage.accessed])
+                set(DbImage.size, data[DbImage.size])
+            }
+        }
+    }
+}