feat: add subdoc migration script (#2820)

Co-authored-by: himself65 <himself65@outlook.com>

packages/env/src/__tests__/subdoc-migration.spec.ts

@@ -0,0 +1,76 @@
+import { readFileSync } from 'fs';
+import { dirname, resolve } from 'path';
+import { fileURLToPath } from 'url';
+import { describe, expect, test } from 'vitest';
+import * as Y from 'yjs';
+
+import { migrateToSubdoc } from '../blocksuite';
+
+const fixturePath = resolve(
+  dirname(fileURLToPath(import.meta.url)),
+  'workspace.ydoc'
+);
+const yDocBuffer = readFileSync(fixturePath);
+const doc = new Y.Doc();
+Y.applyUpdate(doc, new Uint8Array(yDocBuffer));
+const migratedDoc = migrateToSubdoc(doc);
+
+describe('subdoc', () => {
+  test('Migration to subdoc', async () => {
+    const { default: json } = await import('@affine-test/fixtures/output.json');
+    const length = Object.keys(json).length;
+    const binary = new Uint8Array(length);
+    for (let i = 0; i < length; i++) {
+      binary[i] = (json as any)[i];
+    }
+    const doc = new Y.Doc();
+    Y.applyUpdate(doc, binary);
+    {
+      // invoke data
+      doc.getMap('space:hello-world');
+      doc.getMap('space:meta');
+    }
+    const blocks = doc.getMap('space:hello-world').toJSON();
+    const newDoc = migrateToSubdoc(doc);
+    const subDoc = newDoc.getMap('spaces').get('space:hello-world') as Y.Doc;
+    const data = (subDoc.toJSON() as any).blocks;
+    Object.keys(data).forEach(id => {
+      if (id === 'xyWNqindHH') {
+        return;
+      }
+      expect(data[id]).toEqual(blocks[id]);
+    });
+  });
+
+  test('Test fixture should be set correctly', () => {
+    const meta = doc.getMap('space:meta');
+    const versions = meta.get('versions') as Y.Map<unknown>;
+    expect(versions.get('affine:code')).toBeTypeOf('number');
+  });
+
+  test('Meta data should be migrated correctly', () => {
+    const originalMeta = doc.getMap('space:meta');
+    const originalVersions = originalMeta.get('versions') as Y.Map<unknown>;
+
+    const meta = migratedDoc.getMap('meta');
+    const blockVersions = meta.get('blockVersions') as Y.Map<unknown>;
+
+    expect(meta.get('workspaceVersion')).toBe(1);
+    expect(blockVersions.get('affine:code')).toBe(
+      originalVersions.get('affine:code')
+    );
+    expect((meta.get('pages') as Y.Array<unknown>).length).toBe(
+      (originalMeta.get('pages') as Y.Array<unknown>).length
+    );
+
+    expect(blockVersions.get('affine:embed')).toBeUndefined();
+    expect(blockVersions.get('affine:image')).toBe(
+      originalVersions.get('affine:embed')
+    );
+
+    expect(blockVersions.get('affine:frame')).toBeUndefined();
+    expect(blockVersions.get('affine:note')).toBe(
+      originalVersions.get('affine:frame')
+    );
+  });
+});