@zenfs/core - npm Package Compare versions

Comparing version 0.3.0 to 0.3.1

dist/backends/AsyncMirror.d.ts

@@ -38,5 +38,2 @@ import { FileSystem, FileSystemMetadata } from '../filesystem.js';
     createFile(path: string, flag: FileFlag, mode: number, cred: Cred): Promise<File>;
-    /**
-     * @internal
-     */
     openFile(path: string, flag: FileFlag, cred: Cred): Promise<File>;
@@ -43,0 +40,0 @@ unlink(path: string, cred: Cred): Promise<void>;

dist/backends/AsyncStore.d.ts

@@ -83,2 +83,3 @@ import { Cred } from '../cred.js';
 declare const AsyncStoreFileSystem_base: (abstract new (...args: any[]) => {
+    readonly metadata: FileSystemMetadata;
     renameSync(oldPath: string, newPath: string, cred: Cred): void;
@@ -94,16 +95,2 @@ statSync(path: string, cred: Cred): Stats;
     syncSync(path: string, data: Uint8Array, stats: Readonly<Stats>): void;
-    readonly metadata: FileSystemMetadata;
-    ready(): Promise<any>;
-    rename(oldPath: string, newPath: string, cred: Cred): Promise<void>;
-    stat(path: string, cred: Cred): Promise<Stats>;
-    openFile(path: string, flag: FileFlag, cred: Cred): Promise<File>;
-    createFile(path: string, flag: FileFlag, mode: number, cred: Cred): Promise<File>;
-    unlink(path: string, cred: Cred): Promise<void>;
-    rmdir(path: string, cred: Cred): Promise<void>;
-    mkdir(path: string, mode: number, cred: Cred): Promise<void>;
-    readdir(path: string, cred: Cred): Promise<string[]>;
-    exists(path: string, cred: Cred): Promise<boolean>;
-    existsSync(path: string, cred: Cred): boolean;
-    link(srcpath: string, dstpath: string, cred: Cred): Promise<void>;
-    sync(path: string, data: Uint8Array, stats: Readonly<Stats>): Promise<void>;
 }) & typeof FileSystem;
@@ -110,0 +97,0 @@ /**

dist/backends/AsyncStore.js

@@ -76,2 +76,3 @@ import { dirname, basename, join, resolve } from '../emulation/path.js';
     }
+    // @ts-expect-error 2611
     get metadata() {
@@ -78,0 +79,0 @@ return {

dist/FileIndex.d.ts

@@ -157,2 +157,3 @@ import type { Cred } from './cred.js';
 declare const FileIndexFS_base: (abstract new (...args: any[]) => {
+    readonly metadata: import("./filesystem.js").FileSystemMetadata;
     rename(oldPath: string, newPath: string, cred: Cred): Promise<void>;
@@ -172,12 +173,2 @@ renameSync(oldPath: string, newPath: string, cred: Cred): void;
     syncSync(path: string, data: Uint8Array, stats: Readonly<Stats>): void;
-    readonly metadata: import("./filesystem.js").FileSystemMetadata;
-    ready(): Promise<any>;
-    stat(path: string, cred: Cred): Promise<Stats>;
-    statSync(path: string, cred: Cred): Stats;
-    openFile(path: string, flag: FileFlag, cred: Cred): Promise<import("./file.js").File>;
-    openFileSync(path: string, flag: FileFlag, cred: Cred): import("./file.js").File;
-    readdir(path: string, cred: Cred): Promise<string[]>;
-    readdirSync(path: string, cred: Cred): string[];
-    exists(path: string, cred: Cred): Promise<boolean>;
-    existsSync(path: string, cred: Cred): boolean;
 }) & typeof FileSystem;
@@ -229,2 +220,3 @@ export declare abstract class FileIndexFS<TIndex> extends FileIndexFS_base {
 declare const AsyncFileIndexFS_base: (abstract new (...args: any[]) => {
+    readonly metadata: import("./filesystem.js").FileSystemMetadata;
     renameSync(oldPath: string, newPath: string, cred: Cred): void;
@@ -240,16 +232,2 @@ statSync(path: string, cred: Cred): Stats;
     syncSync(path: string, data: Uint8Array, stats: Readonly<Stats>): void;
-    readonly metadata: import("./filesystem.js").FileSystemMetadata;
-    ready(): Promise<any>;
-    rename(oldPath: string, newPath: string, cred: Cred): Promise<void>;
-    stat(path: string, cred: Cred): Promise<Stats>;
-    openFile(path: string, flag: FileFlag, cred: Cred): Promise<import("./file.js").File>;
-    createFile(path: string, flag: FileFlag, mode: number, cred: Cred): Promise<import("./file.js").File>;
-    unlink(path: string, cred: Cred): Promise<void>;
-    rmdir(path: string, cred: Cred): Promise<void>;
-    mkdir(path: string, mode: number, cred: Cred): Promise<void>;
-    readdir(path: string, cred: Cred): Promise<string[]>;
-    exists(path: string, cred: Cred): Promise<boolean>;
-    existsSync(path: string, cred: Cred): boolean;
-    link(srcpath: string, dstpath: string, cred: Cred): Promise<void>;
-    sync(path: string, data: Uint8Array, stats: Readonly<Stats>): Promise<void>;
 }) & (abstract new (index: ListingTree) => FileIndexFS<unknown>);
@@ -256,0 +234,0 @@ export declare abstract class AsyncFileIndexFS<TIndex> extends AsyncFileIndexFS_base {

dist/filesystem.d.ts

@@ -157,11 +157,7 @@ import { ApiError } from './ApiError.js';
 /**
- * Implements the asynchronous API in terms of the synchronous API.
- *
- * @example ```ts
- * class SyncFS extends Sync(FileSystem) {}
- * ```
+ * @internal
  */
-export declare function Sync<T extends abstract new (...args: any[]) => FileSystem>(FS: T): (abstract new (...args: any[]) => {
-    readonly metadata: FileSystemMetadata;
-    ready(): Promise<any>;
+declare abstract class SyncFileSystem extends FileSystem {
+    get metadata(): FileSystemMetadata;
+    ready(): Promise<this>;
     exists(path: string, cred: Cred): Promise<boolean>;
@@ -178,57 +174,15 @@ rename(oldPath: string, newPath: string, cred: Cred): Promise<void>;
     sync(path: string, data: Uint8Array, stats: Readonly<Stats>): Promise<void>;
-    /**
-     * Synchronous rename.
-     */
+}
+/**
+ * Implements the asynchronous API in terms of the synchronous API.
+ */
+export declare function Sync<T extends abstract new (...args: any[]) => FileSystem>(FS: T): (abstract new (...args: any[]) => SyncFileSystem) & T;
+/**
+ * @internal
+ */
+declare abstract class AsyncFileSystem {
+    get metadata(): FileSystemMetadata;
     renameSync(oldPath: string, newPath: string, cred: Cred): void;
-    /**
-     * Synchronous `stat`.
-     */
     statSync(path: string, cred: Cred): Stats;
-    /**
-     * Opens the file at path p with the given flag. The file must exist.
-     * @param p The path to open.
-     * @param flag The flag to use when opening the file.
-     * @return A File object corresponding to the opened file.
-     */
-    openFileSync(path: string, flag: FileFlag, cred: Cred): File;
-    /**
-     * Create the file at path p with the given mode. Then, open it with the given
-     * flag.
-     */
     createFileSync(path: string, flag: FileFlag, mode: number, cred: Cred): File;
-    /**
-     * Synchronous `unlink`.
-     */
-    unlinkSync(path: string, cred: Cred): void;
-    /**
-     * Synchronous `rmdir`.
-     */
-    rmdirSync(path: string, cred: Cred): void;
-    /**
-     * Synchronous `mkdir`.
-     * @param mode Mode to make the directory using. Can be ignored if
-     *   the filesystem doesn't support permissions.
-     */
-    mkdirSync(path: string, mode: number, cred: Cred): void;
-    /**
-     * Synchronous `readdir`. Reads the contents of a directory.
-     */
-    readdirSync(path: string, cred: Cred): string[];
-    /**
-     * Test whether or not the given path exists by checking with the file system.
-     */
-    existsSync(path: string, cred: Cred): boolean;
-    /**
-     * Synchronous `link`.
-     */
-    linkSync(srcpath: string, dstpath: string, cred: Cred): void;
-    /**
-     * Synchronize the data and stats for path synchronously
-     */
-    syncSync(path: string, data: Uint8Array, stats: Readonly<Stats>): void;
-}) & T;
-export declare function Async<T extends abstract new (...args: any[]) => FileSystem>(FS: T): (abstract new (...args: any[]) => {
-    renameSync(oldPath: string, newPath: string, cred: Cred): void;
-    statSync(path: string, cred: Cred): Stats;
-    createFileSync(path: string, flag: FileFlag, mode: number, cred: Cred): File;
     openFileSync(path: string, flag: FileFlag, cred: Cred): File;
@@ -241,64 +195,10 @@ unlinkSync(path: string, cred: Cred): void;
     syncSync(path: string, data: Uint8Array, stats: Readonly<Stats>): void;
-    readonly metadata: FileSystemMetadata;
-    ready(): Promise<any>;
-    /**
-     * Asynchronous rename. No arguments other than a possible exception
-     * are given to the completion callback.
-     */
+}
+export declare function Async<T extends abstract new (...args: any[]) => FileSystem>(FS: T): (abstract new (...args: any[]) => AsyncFileSystem) & T;
+/**
+ * @internal
+ */
+declare abstract class ReadonlyFileSystem {
+    get metadata(): FileSystemMetadata;
     rename(oldPath: string, newPath: string, cred: Cred): Promise<void>;
-    /**
-     * Asynchronous `stat`.
-     */
-    stat(path: string, cred: Cred): Promise<Stats>;
-    /**
-     * Opens the file at path p with the given flag. The file must exist.
-     * @param p The path to open.
-     * @param flag The flag to use when opening the file.
-     */
-    openFile(path: string, flag: FileFlag, cred: Cred): Promise<File>;
-    /**
-     * Create the file at path p with the given mode. Then, open it with the given
-     * flag.
-     */
-    createFile(path: string, flag: FileFlag, mode: number, cred: Cred): Promise<File>;
-    /**
-     * Asynchronous `unlink`.
-     */
-    unlink(path: string, cred: Cred): Promise<void>;
-    /**
-     * Asynchronous `rmdir`.
-     */
-    rmdir(path: string, cred: Cred): Promise<void>;
-    /**
-     * Asynchronous `mkdir`.
-     * @param mode Mode to make the directory using. Can be ignored if
-     *   the filesystem doesn't support permissions.
-     */
-    mkdir(path: string, mode: number, cred: Cred): Promise<void>;
-    /**
-     * Asynchronous `readdir`. Reads the contents of a directory.
-     *
-     * The callback gets two arguments `(err, files)` where `files` is an array of
-     * the names of the files in the directory excluding `'.'` and `'..'`.
-     */
-    readdir(path: string, cred: Cred): Promise<string[]>;
-    /**
-     * Test whether or not the given path exists by checking with the file system.
-     */
-    exists(path: string, cred: Cred): Promise<boolean>;
-    /**
-     * Test whether or not the given path exists by checking with the file system.
-     */
-    existsSync(path: string, cred: Cred): boolean;
-    /**
-     * Asynchronous `link`.
-     */
-    link(srcpath: string, dstpath: string, cred: Cred): Promise<void>;
-    /**
-     * Synchronize the data and stats for path asynchronously
-     */
-    sync(path: string, data: Uint8Array, stats: Readonly<Stats>): Promise<void>;
-}) & T;
-export declare function Readonly<T extends abstract new (...args: any[]) => FileSystem>(FS: T): (abstract new (...args: any[]) => {
-    rename(oldPath: string, newPath: string, cred: Cred): Promise<void>;
     renameSync(oldPath: string, newPath: string, cred: Cred): void;
@@ -317,44 +217,4 @@ createFile(path: string, flag: FileFlag, mode: number, cred: Cred): Promise<File>;
     syncSync(path: string, data: Uint8Array, stats: Readonly<Stats>): void;
-    readonly metadata: FileSystemMetadata;
-    ready(): Promise<any>;
-    /**
-     * Asynchronous `stat`.
-     */
-    stat(path: string, cred: Cred): Promise<Stats>;
-    /**
-     * Synchronous `stat`.
-     */
-    statSync(path: string, cred: Cred): Stats;
-    /**
-     * Opens the file at path p with the given flag. The file must exist.
-     * @param p The path to open.
-     * @param flag The flag to use when opening the file.
-     */
-    openFile(path: string, flag: FileFlag, cred: Cred): Promise<File>;
-    /**
-     * Opens the file at path p with the given flag. The file must exist.
-     * @param p The path to open.
-     * @param flag The flag to use when opening the file.
-     * @return A File object corresponding to the opened file.
-     */
-    openFileSync(path: string, flag: FileFlag, cred: Cred): File;
-    /**
-     * Asynchronous `readdir`. Reads the contents of a directory.
-     *
-     * The callback gets two arguments `(err, files)` where `files` is an array of
-     * the names of the files in the directory excluding `'.'` and `'..'`.
-     */
-    readdir(path: string, cred: Cred): Promise<string[]>;
-    /**
-     * Synchronous `readdir`. Reads the contents of a directory.
-     */
-    readdirSync(path: string, cred: Cred): string[];
-    /**
-     * Test whether or not the given path exists by checking with the file system.
-     */
-    exists(path: string, cred: Cred): Promise<boolean>;
-    /**
-     * Test whether or not the given path exists by checking with the file system.
-     */
-    existsSync(path: string, cred: Cred): boolean;
-}) & T;
+}
+export declare function Readonly<T extends abstract new (...args: any[]) => FileSystem>(FS: T): (abstract new (...args: any[]) => ReadonlyFileSystem) & T;
+export {};

dist/filesystem.js

@@ -54,6 +54,2 @@ import { ApiError, ErrorCode } from './ApiError.js';
  * Implements the asynchronous API in terms of the synchronous API.
- *
- * @example ```ts
- * class SyncFS extends Sync(FileSystem) {}
- * ```
  */
@@ -64,3 +60,3 @@ export function Sync(FS) {
      */
-    class SyncFileSystem extends FS {
+    class _SyncFileSystem extends FS {
         get metadata() {
@@ -106,6 +102,9 @@ return { ...super.metadata, synchronous: true };
     }
-    return SyncFileSystem;
+    return _SyncFileSystem;
 }
 export function Async(FS) {
-    class AsyncFileSystem extends FS {
+    class _AsyncFileSystem extends FS {
+        get metadata() {
+            return { ...super.metadata, synchronous: false };
+        }
         /* eslint-disable @typescript-eslint/no-unused-vars */
@@ -144,6 +143,9 @@ renameSync(oldPath, newPath, cred) {
     /* eslint-enable @typescript-eslint/no-unused-vars */
-    return AsyncFileSystem;
+    return _AsyncFileSystem;
 }
 export function Readonly(FS) {
-    class ReadonlyFileSystem extends FS {
+    class _ReadonlyFileSystem extends FS {
+        get metadata() {
+            return { ...super.metadata, readonly: true };
+        }
         /* eslint-disable @typescript-eslint/no-unused-vars */
@@ -193,3 +195,3 @@ async rename(oldPath, newPath, cred) {
     }
-    return ReadonlyFileSystem;
+    return _ReadonlyFileSystem;
 }

package.json

 {
   "name": "@zenfs/core",
-  "version": "0.3.0",
+  "version": "0.3.1",
   "description": "A filesystem in your browser",
@@ -5,0 +5,0 @@ "main": "dist/index.js",

readme.md

@@ -7,3 +7,3 @@ # ZenFS
 
-ZenFS is highly extensible, and includes many builtin filesystem backends:
+ZenFS is highly extensible, and includes a few built-in backends:
 
@@ -13,6 +13,8 @@ -   `InMemory`: Stores files in-memory. It is a temporary file store that clears when the user navigates away.
 -   `AsyncMirror`: Use an asynchronous backend synchronously. Invaluable for Emscripten; let your Emscripten applications write to larger file stores with no additional effort!
-    -   `AsyncMirror` loads the entire contents of the async file system into a synchronous backend during construction. It performs operations synchronous file system and then queues them to be mirrored onto the asynchronous backend.
 
-More backends can be defined by separate libraries, so long as they extend they implement `ZenFS.FileSystem`. Multiple backends can be active at once at different locations in the directory hierarchy.
+> [!NOTE]
+> When constructed, `AsyncMirror` loads the entire contents of the async file system into a synchronous backend. It performs operations on the synchronous file system and then queues them to be mirrored onto the asynchronous backend.
 
+More backends can be defined by separate libraries, as long as they implement `FileSystem`.
+
 ZenFS supports a number of other backends (many are provided as seperate packages under `@zenfs`).
@@ -30,3 +32,4 @@
 
-> 🛈 The examples are written in ESM. If you are using CJS, you can `require` the package. If running in a browser you can add a script tag to your HTML pointing to the `browser.min.js` and use ZenFS via the global `ZenFS` object.
+> [!NOTE]
+> The examples are written in ESM. If you are using CJS, you can `require` the package. If running in a browser you can add a script tag to your HTML pointing to the `browser.min.js` and use ZenFS via the global `ZenFS` object.
 
@@ -42,24 +45,12 @@ ```js
 
-#### Using different backends
+#### Using different and/or different backends
 
-A `InMemory` backend is created by default. If you would like to use a different one, you must configure ZenFS. It is recommended to do so using the `configure` function. Here is an example using the `Storage` backend from `@zenfs/dom`:
+A single `InMemory` backend is created by default, mounted on `/`.
 
-```js
-import { configure, fs } from '@zenfs/core';
-import { StorageStore } from '@zenfs/dom';
+You can configure ZenFS to use a different backend and mount multiple backends. It is strongly recommended to do so using the `configure` function.
 
-await configure({ backend: StorageStore });
+You can use multiple backends by passing an object to `configure` which maps paths to file systems.
 
-if (!fs.existsSync('/test.txt')) {
-	fs.writeFileSync('/test.txt', 'This will persist across reloads!');
-}
+The following example mounts a zip file to `/zip`, in-memory storage to `/tmp`, and IndexedDB to `/home`. Note that `/` has the default in-memory backend.
 
-const contents = fs.readFileSync('/test.txt', 'utf-8');
-console.log(contents);
-```
-
-#### Using multiple backends
-
-You can use multiple backends by passing an object to `configure` which maps paths to file systems. The following example mounts a zip file to `/zip`, in-memory storage to `/tmp`, and IndexedDB storage to `/home` (note that `/` has the default in-memory backend):
-
 ```js
@@ -73,6 +64,3 @@ import { configure } from '@zenfs/core';
 await configure({
-	'/mnt/zip': {
-		backend: Zip,
-		zipData: zipData,
-	},
+	'/mnt/zip': { backend: Zip, zipData },
 	'/tmp': 'InMemory',
@@ -83,4 +71,23 @@ '/home': IndexedDB,
 
-#### FS Promises API
+> [!TIP]
+> When configuring a mount point, you can pass in 1. A string that maps to a built-in backend 2. A `Backend` object, if the backend has no required options 3. An object that has a `backend` property which is a `Backend` or a string that maps to a built-in backend and the options accepted by the backend
 
+Here is an example that mounts the `Storage` backend from `@zenfs/dom` on `/`:
+
+```js
+import { configure, fs } from '@zenfs/core';
+import { Storage } from '@zenfs/dom';
+
+await configure({ backend: Storage });
+
+if (!fs.existsSync('/test.txt')) {
+	fs.writeFileSync('/test.txt', 'This will persist across reloads!');
+}
+
+const contents = fs.readFileSync('/test.txt', 'utf-8');
+console.log(contents);
+```
+
+#### FS Promises
+
 The FS promises API is exposed as `promises`.
@@ -100,7 +107,11 @@
 
-ZenFS does _not_ provide a seperate public import for importing promises in its built form. If you are using ESM, you can import promises functions from `dist/emulation/promises`, though this may change at any time and is not recommended.
+> [!NOTE]
+> You can import the promises API using `promises`, or using `fs.promises` on the exported `fs`.
 
+> [!IMPORTANT]
+> ZenFS does _not_ provide a seperate public import for importing promises like `fs/promises`. If you are using ESM, you can import promises functions like `fs/promises` from the `dist/emulation/promises.ts` file, though this may change at any time and is **not recommended**.
+
 #### Using asynchronous backends synchronously
 
-You may have noticed that attempting to use a synchronous function on an asynchronous backend (e.g. IndexedDB) results in a "not supplied" error (`ENOTSUP`). If you wish to use an asynchronous backend synchronously you need to wrap it in an `AsyncMirror`:
+You may have noticed that attempting to use a synchronous function on an asynchronous backend (e.g. `IndexedDB`) results in a "not supplied" error (`ENOTSUP`). If you would like to use an asynchronous backend synchronously you need to wrap it in an `AsyncMirror`:
 
@@ -119,45 +130,13 @@ ```js
 
-fs.writeFileSync('/persistant.txt', 'My persistant data'); // This fails if you configure with only IndexedDB
+fs.writeFileSync('/persistant.txt', 'My persistant data');
 ```
 
-### Advanced usage
+#### Mounting and unmounting, creating backends
 
-#### Creating backends
+If you would like to create backends without configure (e.g. to do something dynamic at runtime), you may do so by importing the backend and calling `createBackend` with it.
 
-If you would like to create backends without configure, you may do so by importing the backend and calling `createBackend` with it. You can import the backend directly or with `backends`:
+You can then mount and unmount the backend instance by using `mount` and `umount`.
 
 ```js
-import { configure, backends, InMemory } from '@zenfs/core';
-
-console.log(backends.InMemory === InMemory); // they are the same
-
-const internalInMemoryFS = await createBackend(InMemory);
-```
-
-> ⚠ Instances of backends follow the **_internal_** ZenFS API. You should never use a backend's methods unless you are extending a backend.
-
-```js
-import { configure, InMemory } from '@zenfs/core';
-
-const internalInMemoryFS = new InMemory();
-await internalInMemoryFS.ready();
-```
-
-#### Mounting
-
-If you would like to mount and unmount backends, you can do so using the `mount` and `umount` functions:
-
-```js
-import { fs, InMemory } from '@zenfs/core';
-
-const internalInMemoryFS = await createBackend(InMemory); // create an FS instance
-
-fs.mount('/tmp', internalInMemoryFS); // mount
-
-fs.umount('/tmp'); // unmount /tmp
-```
-
-This could be used in the "multiple backends" example like so:
-
-```js
+import { configure, createBackend } from '@zenfs/core';
 import { IndexedDB  } from '@zenfs/dom';
@@ -168,3 +147,3 @@ import { Zip } from '@zenfs/zip';
 	'/tmp': 'InMemory',
-	'/home': 'IndexedDB',
+	'/home': IndexedDB,
 };
@@ -183,2 +162,5 @@
 
+> [!WARNING]
+> Instances of backends follow the **internal** ZenFS API. You should never use a backend's methods unless you are extending a backend.
+
 ## Using with bundlers
@@ -198,5 +180,1 @@
 Run unit tests with `npm test`.
-
-### License
-
-ZenFS is licensed under the MIT License.

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Total package byte prevSize

1453266

decreased by-2.22%

Number of package files

59

decreased by-9.23%

Lines of code

11218

decreased by-8.66%

Number of lines in readme file

170

decreased by-11.46%

No dependency changes