[POC] SQL.js

demos/react-native-supabase-todolist/library/powersync/system.ts

@@ -1,10 +1,11 @@
 import '@azure/core-asynciterator-polyfill';
 
-import { createBaseLogger, LogLevel, PowerSyncDatabase, SyncClientImplementation } from '@powersync/react-native';
+import { createBaseLogger, LogLevel, PowerSyncDatabase } from '@powersync/react-native';
 import React from 'react';
 import { SupabaseStorageAdapter } from '../storage/SupabaseStorageAdapter';
 
 import { type AttachmentRecord } from '@powersync/attachments';
+import { SQLJSOpenFactory } from '@powersync/dev-adapter';
 import { configureFts } from '../fts/fts_setup';
 import { KVStorage } from '../storage/KVStorage';
 import { AppConfig } from '../supabase/AppConfig';
@@ -29,9 +30,17 @@ export class System {
     this.storage = this.supabaseConnector.storage;
     this.powersync = new PowerSyncDatabase({
       schema: AppSchema,
-      database: {
-        dbFilename: 'sqlite.db'
-      },
+      // database: {
+      //   dbFilename: 'ddd'
+      // },
+      database: new SQLJSOpenFactory({
+        dbFilename: 'powersync.db',
+        persister: {
+          // TODO
+          readFile: async () => null,
+          writeFile: async () => {}
+        }
+      }),
       logger
     });
     /**
@@ -68,7 +77,7 @@ export class System {
 
   async init() {
     await this.powersync.init();
-    await this.powersync.connect(this.supabaseConnector, { clientImplementation: SyncClientImplementation.RUST });
+    await this.powersync.connect(this.supabaseConnector);
 
     if (this.attachmentQueue) {
       await this.attachmentQueue.init();

demos/react-native-supabase-todolist/package.json

@@ -14,6 +14,7 @@
     "@powersync/attachments": "workspace:*",
     "@powersync/common": "workspace:*",
     "@powersync/react": "workspace:*",
+    "@powersync/dev-adapter": "workspace:*",
     "@powersync/react-native": "workspace:*",
     "@react-native-community/masked-view": "^0.1.11",
     "@react-navigation/drawer": "^7.1.1",

packages/common/src/db/crud/SyncProgress.ts

@@ -1,4 +1,4 @@
-import { BucketProgress } from 'src/client/sync/stream/core-instruction.js';
+import { BucketProgress } from '../../client/sync/stream/core-instruction.js';
 import type { SyncStatus } from './SyncStatus.js';
 
 // (bucket, progress) pairs

packages/dev-adapter/README.md

@@ -0,0 +1,3 @@
+# PowerSync SDK Dev Adapter
+
+A very small development DB Adapter for PowerSync which uses [SQL.js](https://sql.js.org/#/)

packages/dev-adapter/package.json

@@ -0,0 +1,40 @@
+{
+  "name": "@powersync/dev-adapter",
+  "version": "0.0.0",
+  "private": "true",
+  "description": "API definitions for JourneyApps PowerSync",
+  "type": "module",
+  "main": "dist/bundle.mjs",
+  "module": "dist/bundle.mjs",
+  "types": "lib/index.d.ts",
+  "author": "JOURNEYAPPS",
+  "license": "Apache-2.0",
+  "files": [
+    "lib",
+    "dist"
+  ],
+  "repository": {
+    "type": "git",
+    "url": "git+https://github.com/powersync-ja/powersync-js.git"
+  },
+  "bugs": {
+    "url": "https://github.com/powersync-ja/powersync-js/issues"
+  },
+  "homepage": "https://docs.powersync.com",
+  "scripts": {
+    "build": "tsc -b && rollup -c rollup.config.mjs",
+    "build:prod": "tsc -b --sourceMap false && && rollup -c rollup.config.mjs --sourceMap false",
+    "clean": "rm -rf lib dist tsconfig.tsbuildinfo",
+    "test": "vitest"
+  },
+  "dependencies": {
+    "@powersync/common": "workspace:^",
+    "async-mutex": "^0.4.0"
+  },
+  "devDependencies": {
+    "@rollup/plugin-alias": "^5.1.0",
+    "@types/sql.js": "^1.4.9",
+    "rollup": "4.14.3",
+    "sql.js": "workspace:*"
+  }
+}

packages/dev-adapter/rollup.config.mjs

@@ -0,0 +1,40 @@
+import alias from '@rollup/plugin-alias';
+import commonjs from '@rollup/plugin-commonjs';
+import nodeResolve from '@rollup/plugin-node-resolve';
+import path from 'path';
+import { fileURLToPath } from 'url';
+
+const __filename = fileURLToPath(import.meta.url);
+const __dirname = path.dirname(__filename);
+
+/**
+ * @returns {import('rollup').RollupOptions}
+ */
+export default (commandLineArgs) => {
+  const sourceMap = (commandLineArgs.sourceMap || 'true') == 'true';
+
+  // Clears rollup CLI warning https://github.com/rollup/rollup/issues/2694
+  delete commandLineArgs.sourceMap;
+
+  return {
+    input: 'lib/index.js',
+    output: {
+      file: 'dist/bundle.mjs',
+      format: 'esm',
+      sourcemap: sourceMap
+    },
+    plugins: [
+      nodeResolve({ preferBuiltins: false, browser: true }),
+      commonjs({}),
+      alias({
+        entries: [
+          { find: 'fs', replacement: path.resolve(__dirname, 'vendored/empty.js') },
+          { find: 'path', replacement: path.resolve(__dirname, 'vendored/empty.js') },
+          { find: 'crypto', replacement: path.resolve(__dirname, 'vendored/empty.js') }
+          // add others as needed
+        ]
+      })
+    ],
+    external: ['@powersync/common']
+  };
+};