Fixed v4 ueberdb (#747)

* Fixed v4 ueberdb

* Fixed module not found

---------

Co-authored-by: SamTV12345 <noreply+samtv1235@github.com>

databases/rusty_db.ts

@@ -1,8 +1,7 @@
 import AbstractDatabase from "../lib/AbstractDatabase";
-import {KeyValueDB} from 'rusty-store-kv'
 
 export default class Rusty_db extends AbstractDatabase {
-    db: KeyValueDB |null| undefined
+    db: any |null| undefined
 
     constructor(settings: {filename: string}) {
         super(settings);
@@ -34,7 +33,16 @@ export default class Rusty_db extends AbstractDatabase {
     }
 
     async init() {
-        this.db = new KeyValueDB(this.settings.filename!);
+        let RUSTY_DB
+        try {
+            RUSTY_DB = await import('rusty-store-kv');
+        } catch (err) {
+            throw new Error(
+                'rusty-store-kv not found. It was removed from ueberdb\'s dependencies because it requires ' +
+                'compilation which fails on several systems. If you still want to use rusty store kv, run ' +
+                '"pnpm install rusty-store-kv" in your etherpad-lite ./src directory.');
+        }
+        this.db = new RUSTY_DB.KeyValueDB(this.settings.filename!);
     }
 
     close() {

databases/sqlite_db.ts

@@ -1,7 +1,6 @@
 'use strict';
 import {BulkObject} from "./cassandra_db";
 import AbstractDatabase, {Settings} from "../lib/AbstractDatabase";
-import {SQLite} from 'rusty-store-kv'
 
 /**
  * 2011 Peter 'Pita' Martischka
@@ -19,14 +18,8 @@ import {SQLite} from 'rusty-store-kv'
  * limitations under the License.
  */
 
-const escape = (val:string) => `'${val.replace(/'/g, "''")}'`;
-
-type RequestVal = {
-  value: string;
-}
-
 export default class SQLiteDB extends AbstractDatabase {
-  public db: SQLite|null;
+  public db: any|null;
   constructor(settings:Settings) {
     super(settings);
     this.db = null;
@@ -50,7 +43,16 @@ export default class SQLiteDB extends AbstractDatabase {
   }
 
   init(callback: Function) {
-    this.db = new SQLite(this.settings.filename as string)
+    let SQLITEDB
+    try {
+      SQLITEDB = require('rusty-store-kv');
+    } catch (err) {
+      throw new Error(
+          'rusty-store-kv not found. It was removed from ueberdb\'s dependencies because it requires ' +
+          'compilation which fails on several systems. If you still want to use sqlite, run ' +
+          '"pnpm install rusty-store-kv" in your etherpad-lite ./src directory.');
+    }
+    this.db = new SQLITEDB.SQLite(this.settings.filename as string)
     callback();
   }