1 files changed, 109 insertions, 0 deletions
diff --git a/scripts/migrate_db_engine.js b/scripts/migrate_db_engine.js
new file mode 100644
index 00000000..79e9d86f
--- /dev/null
+++ b/scripts/migrate_db_engine.js
@@ -0,0 +1,109 @@
+const { config } = require("dotenv");
+config();
+const { createConnection } = require("typeorm");
+const { initDatabase } = require("../../dist/util/Database");
+require("missing-native-js-functions");
+const {
+	Application,
+	Attachment,
+	Ban,
+	Channel,
+	ConfigEntity,
+	ConnectedAccount,
+	Emoji,
+	Guild,
+	Invite,
+	Member,
+	Message,
+	ReadState,
+	Recipient,
+	Relationship,
+	Role,
+	Sticker,
+	Team,
+	TeamMember,
+	Template,
+	User,
+	VoiceState,
+	Webhook,
+} = require("../../dist/entities/index");
+
+async function main() {
+	if (!process.env.TO) throw new Error("TO database env connection string not set");
+
+	// manually arrange them because of foreign keys
+	const entities = [
+		ConfigEntity,
+		User,
+		Guild,
+		Channel,
+		Invite,
+		Role,
+		Ban,
+		Application,
+		Emoji,
+		ConnectedAccount,
+		Member,
+		ReadState,
+		Recipient,
+		Relationship,
+		Sticker,
+		Team,
+		TeamMember,
+		Template,
+		VoiceState,
+		Webhook,
+		Message,
+		Attachment,
+	];
+
+	const oldDB = await initDatabase();
+
+	const type = process.env.TO.includes("://") ? process.env.TO.split(":")[0]?.replace("+srv", "") : "sqlite";
+	const isSqlite = type.includes("sqlite");
+
+	// @ts-ignore
+	const newDB = await createConnection({
+		type,
+		url: isSqlite ? undefined : process.env.TO,
+		database: isSqlite ? process.env.TO : undefined,
+		entities,
+		name: "new",
+		synchronize: true,
+	});
+	let i = 0;
+
+	try {
+		for (const entity of entities) {
+			const entries = await oldDB.manager.find(entity);
+
+			// @ts-ignore
+			console.log("migrating " + entries.length + " " + entity.name + " ...");
+
+			for (const entry of entries) {
+				console.log(i++);
+
+				try {
+					await newDB.manager.insert(entity, entry);
+				} catch (error) {
+					try {
+						if (!entry.id) throw new Error("object doesn't have a unique id: " + entry);
+						await newDB.manager.update(entity, { id: entry.id }, entry);
+					} catch (error) {
+						console.error("couldn't migrate " + i + " " + entity.name, error);
+					}
+				}
+			}
+
+			// @ts-ignore
+			console.log("migrated " + entries.length + " " + entity.name);
+		}
+	} catch (error) {
+		console.error(error.message);
+	}
+
+	console.log("SUCCESS migrated all data");
+	await newDB.close();
+}
+
+main().caught();