mirror of
https://gitlab.com/mangadex-pub/mangadex_at_home.git
synced 2024-01-19 02:48:37 +00:00
76 lines
2.1 KiB
Kotlin
76 lines
2.1 KiB
Kotlin
/*
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Mangadex@Home
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Copyright (c) 2020, MangaDex Network
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This file is part of MangaDex@Home.
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MangaDex@Home is free software: you can redistribute it and/or modify
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it under the terms of the GNU General Public License as published by
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the Free Software Foundation, either version 3 of the License, or
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(at your option) any later version.
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MangaDex@Home is distributed in the hope that it will be useful,
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but WITHOUT ANY WARRANTY; without even the implied warranty of
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MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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GNU General Public License for more details.
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You should have received a copy of the GNU General Public License
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along with this MangaDex@Home. If not, see <http://www.gnu.org/licenses/>.
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*/
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package mdnet
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import mdnet.cache.DbImage
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import mdnet.cache.INIT_TABLE
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import org.ktorm.database.Database
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import org.ktorm.dsl.*
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import java.nio.file.Files
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import java.nio.file.Path
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import java.nio.file.Paths
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fun main() {
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migrate(Paths.get("./"))
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}
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fun migrate(path: Path) {
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val h2file = path.resolve("metadata.mv.db")
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if (!Files.exists(h2file)) {
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return
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}
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println("Migrating database - this may take a long time")
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Class.forName("org.sqlite.JDBC")
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val sqliteDb = path.resolve("metadata.db")
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Files.deleteIfExists(sqliteDb)
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val sqlite = Database.connect("jdbc:sqlite:$sqliteDb")
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sqlite.useConnection { conn ->
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conn.prepareStatement(INIT_TABLE).use {
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it.execute()
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}
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}
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val db = path.resolve("metadata")
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val h2 = Database.connect("jdbc:h2:$db")
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h2.useConnection { conn ->
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conn.prepareStatement(INIT_TABLE).use {
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it.execute()
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}
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}
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h2.from(DbImage).select().asIterable().chunked(1000).forEach { list ->
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sqlite.batchInsert(DbImage) {
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for (data in list) {
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item {
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set(DbImage.id, data[DbImage.id])
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set(DbImage.accessed, data[DbImage.accessed])
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set(DbImage.size, data[DbImage.size])
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}
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}
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}
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}
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Files.move(h2file, path.resolve("metadata.mv.db.old"))
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}
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