Initial commit: Brainy - Multi-Dimensional AI Database
Open source vector database with HNSW indexing, graph relationships, and metadata facets. Features CLI with professional augmentation registry integration for discovering extensions and capabilities.
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304
dist/universal/fs.js
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304
dist/universal/fs.js
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/**
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* Universal File System implementation
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* Browser: Uses OPFS (Origin Private File System)
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* Node.js: Uses built-in fs/promises
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* Serverless: Uses memory-based fallback
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*/
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import { isBrowser, isNode } from '../utils/environment.js';
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let nodeFs = null;
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// Dynamic import for Node.js fs (only in Node.js environment)
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if (isNode()) {
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try {
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nodeFs = await import('fs/promises');
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}
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catch {
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// Ignore import errors in non-Node environments
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}
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}
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/**
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* Browser implementation using OPFS
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*/
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class BrowserFS {
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async getRoot() {
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if ('storage' in navigator && 'getDirectory' in navigator.storage) {
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return await navigator.storage.getDirectory();
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}
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throw new Error('OPFS not supported in this browser');
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}
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async getFileHandle(path, create = false) {
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const root = await this.getRoot();
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const parts = path.split('/').filter(p => p);
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let dir = root;
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for (let i = 0; i < parts.length - 1; i++) {
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dir = await dir.getDirectoryHandle(parts[i], { create });
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}
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const fileName = parts[parts.length - 1];
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return await dir.getFileHandle(fileName, { create });
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}
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async getDirHandle(path, create = false) {
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const root = await this.getRoot();
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const parts = path.split('/').filter(p => p);
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let dir = root;
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for (const part of parts) {
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dir = await dir.getDirectoryHandle(part, { create });
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}
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return dir;
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}
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async readFile(path, encoding) {
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try {
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const fileHandle = await this.getFileHandle(path);
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const file = await fileHandle.getFile();
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return await file.text();
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}
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catch (error) {
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throw new Error(`File not found: ${path}`);
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}
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}
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async writeFile(path, data, encoding) {
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const fileHandle = await this.getFileHandle(path, true);
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const writable = await fileHandle.createWritable();
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await writable.write(data);
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await writable.close();
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}
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async mkdir(path, options = { recursive: true }) {
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await this.getDirHandle(path, true);
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}
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async exists(path) {
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try {
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await this.getFileHandle(path);
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return true;
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}
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catch {
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try {
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await this.getDirHandle(path);
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return true;
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}
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catch {
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return false;
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}
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}
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}
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async readdir(path, options) {
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const dir = await this.getDirHandle(path);
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if (options?.withFileTypes) {
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const entries = [];
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for await (const [name, handle] of dir.entries()) {
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entries.push({
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name,
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isDirectory: () => handle.kind === 'directory',
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isFile: () => handle.kind === 'file'
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});
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}
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return entries;
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}
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else {
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const entries = [];
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for await (const [name] of dir.entries()) {
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entries.push(name);
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}
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return entries;
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}
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}
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async unlink(path) {
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const parts = path.split('/').filter(p => p);
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const fileName = parts.pop();
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const dirPath = parts.join('/');
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if (dirPath) {
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const dir = await this.getDirHandle(dirPath);
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await dir.removeEntry(fileName);
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}
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else {
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const root = await this.getRoot();
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await root.removeEntry(fileName);
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}
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}
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async stat(path) {
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try {
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await this.getFileHandle(path);
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return { isFile: () => true, isDirectory: () => false };
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}
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catch {
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try {
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await this.getDirHandle(path);
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return { isFile: () => false, isDirectory: () => true };
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}
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catch {
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throw new Error(`Path not found: ${path}`);
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}
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}
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}
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async access(path, mode) {
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const exists = await this.exists(path);
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if (!exists) {
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throw new Error(`ENOENT: no such file or directory, access '${path}'`);
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}
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}
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}
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/**
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* Node.js implementation using fs/promises
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*/
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class NodeFS {
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async readFile(path, encoding = 'utf-8') {
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return await nodeFs.readFile(path, encoding);
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}
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async writeFile(path, data, encoding = 'utf-8') {
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await nodeFs.writeFile(path, data, encoding);
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}
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async mkdir(path, options = { recursive: true }) {
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await nodeFs.mkdir(path, options);
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}
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async exists(path) {
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try {
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await nodeFs.access(path);
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return true;
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}
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catch {
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return false;
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}
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}
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async readdir(path, options) {
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if (options?.withFileTypes) {
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return await nodeFs.readdir(path, { withFileTypes: true });
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}
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return await nodeFs.readdir(path);
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}
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async unlink(path) {
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await nodeFs.unlink(path);
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}
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async stat(path) {
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const stats = await nodeFs.stat(path);
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return {
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isFile: () => stats.isFile(),
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isDirectory: () => stats.isDirectory()
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};
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}
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async access(path, mode) {
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await nodeFs.access(path, mode);
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}
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}
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/**
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* Memory-based fallback for serverless/edge environments
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*/
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class MemoryFS {
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constructor() {
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this.files = new Map();
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this.dirs = new Set();
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}
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async readFile(path, encoding) {
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const content = this.files.get(path);
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if (content === undefined) {
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throw new Error(`File not found: ${path}`);
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}
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return content;
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}
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async writeFile(path, data, encoding) {
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this.files.set(path, data);
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// Ensure parent directories exist
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const parts = path.split('/').slice(0, -1);
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for (let i = 1; i <= parts.length; i++) {
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this.dirs.add(parts.slice(0, i).join('/'));
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}
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}
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async mkdir(path, options = { recursive: true }) {
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this.dirs.add(path);
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if (options.recursive) {
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const parts = path.split('/');
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for (let i = 1; i <= parts.length; i++) {
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this.dirs.add(parts.slice(0, i).join('/'));
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}
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}
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}
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async exists(path) {
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return this.files.has(path) || this.dirs.has(path);
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}
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async readdir(path, options) {
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const entries = new Set();
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const pathPrefix = path + '/';
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for (const filePath of this.files.keys()) {
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if (filePath.startsWith(pathPrefix)) {
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const relativePath = filePath.slice(pathPrefix.length);
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const firstSegment = relativePath.split('/')[0];
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entries.add(firstSegment);
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}
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}
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for (const dirPath of this.dirs) {
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if (dirPath.startsWith(pathPrefix)) {
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const relativePath = dirPath.slice(pathPrefix.length);
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const firstSegment = relativePath.split('/')[0];
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if (firstSegment)
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entries.add(firstSegment);
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}
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}
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if (options?.withFileTypes) {
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return Array.from(entries).map(name => ({
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name,
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isDirectory: () => this.dirs.has(path + '/' + name),
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isFile: () => this.files.has(path + '/' + name)
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}));
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}
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return Array.from(entries);
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}
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async unlink(path) {
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this.files.delete(path);
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}
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async stat(path) {
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const isFile = this.files.has(path);
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const isDir = this.dirs.has(path);
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if (!isFile && !isDir) {
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throw new Error(`Path not found: ${path}`);
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}
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return {
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isFile: () => isFile,
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isDirectory: () => isDir
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};
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}
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async access(path, mode) {
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const exists = await this.exists(path);
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if (!exists) {
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throw new Error(`ENOENT: no such file or directory, access '${path}'`);
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}
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}
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}
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// Create the appropriate filesystem implementation
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let fsImpl;
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if (isBrowser()) {
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fsImpl = new BrowserFS();
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}
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else if (isNode() && nodeFs) {
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fsImpl = new NodeFS();
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}
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else {
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fsImpl = new MemoryFS();
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}
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// Export the filesystem operations
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export const readFile = fsImpl.readFile.bind(fsImpl);
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export const writeFile = fsImpl.writeFile.bind(fsImpl);
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export const mkdir = fsImpl.mkdir.bind(fsImpl);
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export const exists = fsImpl.exists.bind(fsImpl);
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export const readdir = fsImpl.readdir.bind(fsImpl);
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export const unlink = fsImpl.unlink.bind(fsImpl);
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export const stat = fsImpl.stat.bind(fsImpl);
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export const access = fsImpl.access.bind(fsImpl);
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// Default export with promises namespace compatibility
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export default {
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readFile,
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writeFile,
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mkdir,
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exists,
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readdir,
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unlink,
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stat,
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access
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};
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// Named export for fs/promises compatibility
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export const promises = {
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readFile,
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writeFile,
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mkdir,
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exists,
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readdir,
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unlink,
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stat,
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access
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};
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//# sourceMappingURL=fs.js.map
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