init

packages/fs-system/.gitignore

@@ -0,0 +1,2 @@
+/node_modules/
+/dist/

packages/fs-system/package.json

@@ -0,0 +1,20 @@
+{
+  "name": "@plaindb/fs-system",
+  "version": "1.0.0",
+  "type": "module",
+  "main": "dist/exports.js",
+  "files": [
+    "dist"
+  ],
+  "scripts": {
+    "build": "tsc --build"
+  },
+  "dependencies": {
+    "@plaindb/plaindb": "workspace:*",
+    "glob": "^11.0.0"
+  },
+  "devDependencies": {
+    "@types/node": "^22.10.1",
+    "typescript": "^5.7.2"
+  }
+}

packages/fs-system/src/exports.ts

@@ -0,0 +1,48 @@
+import { FileSystem } from '@plaindb/plaindb';
+import { existsSync } from 'fs';
+import { mkdir, readFile, writeFile } from 'fs/promises';
+import { dirname, resolve } from 'path';
+import { glob } from 'glob';
+
+type SystemFileSystemOptions = {
+  cwd: string;
+};
+
+class SystemFileSystem extends FileSystem {
+  #options: SystemFileSystemOptions;
+
+  constructor(options: SystemFileSystemOptions) {
+    super();
+    this.#options = options;
+  }
+
+  public get = async (location: string): Promise<Buffer | undefined> => {
+    const { cwd } = this.#options;
+    const actualLocation = resolve(cwd, location);
+    if (!existsSync(actualLocation)) {
+      return undefined;
+    }
+    return readFile(actualLocation);
+  };
+
+  public set = async (location: string, data: Buffer): Promise<void> => {
+    const { cwd } = this.#options;
+    const actualLocation = resolve(cwd, location);
+    const dir = dirname(actualLocation);
+    if (!existsSync(dir)) {
+      await mkdir(dir, { recursive: true });
+    }
+    await writeFile(actualLocation, data);
+  };
+
+  public update = async () => {
+    const { cwd } = this.#options;
+    const files = await glob('**/*', {
+      cwd,
+      nodir: true,
+    });
+    await this.emit('changed', files);
+  };
+}
+
+export { SystemFileSystem };

packages/fs-system/tsconfig.json

@@ -0,0 +1,9 @@
+{
+  "extends": "../../tsconfig.base.json",
+  "compilerOptions": {
+    "outDir": "dist"
+  },
+  "include": [
+    "src"
+  ]
+}