Initial commit: notification-elements-demo app

Interactive Angular 19 demo for @sda/notification-elements-ui with
6 sections: Bell & Feed, Notification Center, Inbox, Comments &
Threads, Mention Input, and Full-Featured layout. Includes mock
data, dark mode toggle, and real-time event log.

Co-Authored-By: Claude Opus 4.6 <noreply@anthropic.com>

node_modules/@jsonjoy.com/fs-core/LICENSE

@@ -0,0 +1,201 @@
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node_modules/@jsonjoy.com/fs-core/README.md

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+# @jsonjoy.com/fs-core
+
+Core filesystem primitives for building in-memory and virtual filesystems.
+
+## Overview
+
+This package provides the core data structures for representing a virtual filesystem:
+
+- **Node** - Represents an i-node (index node), containing file data and metadata
+- **Link** - Represents a hard link pointing to a Node
+- **File** - Represents an open file descriptor
+- **Superblock** - The root of a virtual filesystem, managing nodes and links
+
+## Installation
+
+```bash
+npm install @jsonjoy.com/fs-core
+```
+
+## Usage
+
+```typescript
+import { Superblock, DirectoryJSON } from '@jsonjoy.com/fs-core';
+
+// Create a new filesystem
+const fs = new Superblock();
+
+// Or create from a JSON structure
+const json: DirectoryJSON = {
+  '/file.txt': 'Hello, World!',
+  '/dir/nested.txt': 'Nested content',
+};
+const fs = Superblock.fromJSON(json);
+```

node_modules/@jsonjoy.com/fs-core/lib/File.d.ts

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+import { Buffer } from '@jsonjoy.com/fs-node-builtins/lib/internal/buffer';
+import type { Link } from './Link';
+import type { Node } from './Node';
+/**
+ * Represents an open file (file descriptor) that points to a `Link` (Hard-link) and a `Node`.
+ *
+ * @todo Rename to `OpenFile`.
+ */
+export declare class File {
+    readonly link: Link;
+    readonly node: Node;
+    flags: number;
+    fd: number;
+    /**
+     * A cursor/offset position in a file, where data will be written on write.
+     * User can "seek" this position.
+     */
+    position: number;
+    /**
+     * Open a Link-Node pair. `node` is provided separately as that might be a different node
+     * rather the one `link` points to, because it might be a symlink.
+     * @param link
+     * @param node
+     * @param flags
+     * @param fd
+     */
+    constructor(link: Link, node: Node, flags: number, fd: number);
+    getString(encoding?: string): string;
+    setString(str: string): void;
+    getBuffer(): Buffer;
+    setBuffer(buf: Buffer): void;
+    getSize(): number;
+    truncate(len?: number): void;
+    seekTo(position: number): void;
+    write(buf: Buffer, offset?: number, length?: number, position?: number | null): number;
+    read(buf: Buffer | ArrayBufferView | DataView, offset?: number, length?: number, position?: number): number;
+    chmod(perm: number): void;
+    chown(uid: number, gid: number): void;
+}

node_modules/@jsonjoy.com/fs-core/lib/File.js

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+"use strict";
+Object.defineProperty(exports, "__esModule", { value: true });
+exports.File = void 0;
+const fs_node_utils_1 = require("@jsonjoy.com/fs-node-utils");
+const { O_APPEND } = fs_node_utils_1.constants;
+/**
+ * Represents an open file (file descriptor) that points to a `Link` (Hard-link) and a `Node`.
+ *
+ * @todo Rename to `OpenFile`.
+ */
+class File {
+    /**
+     * Open a Link-Node pair. `node` is provided separately as that might be a different node
+     * rather the one `link` points to, because it might be a symlink.
+     * @param link
+     * @param node
+     * @param flags
+     * @param fd
+     */
+    constructor(link, node, flags, fd) {
+        this.link = link;
+        this.node = node;
+        this.flags = flags;
+        this.fd = fd;
+        this.position = 0;
+        if (this.flags & O_APPEND)
+            this.position = this.getSize();
+    }
+    getString(encoding = 'utf8') {
+        return this.node.getString();
+    }
+    setString(str) {
+        this.node.setString(str);
+    }
+    getBuffer() {
+        return this.node.getBuffer();
+    }
+    setBuffer(buf) {
+        this.node.setBuffer(buf);
+    }
+    getSize() {
+        return this.node.getSize();
+    }
+    truncate(len) {
+        this.node.truncate(len);
+    }
+    seekTo(position) {
+        this.position = position;
+    }
+    write(buf, offset = 0, length = buf.length, position) {
+        if (typeof position !== 'number')
+            position = this.position;
+        const bytes = this.node.write(buf, offset, length, position);
+        this.position = position + bytes;
+        return bytes;
+    }
+    read(buf, offset = 0, length = buf.byteLength, position) {
+        if (typeof position !== 'number')
+            position = this.position;
+        const bytes = this.node.read(buf, offset, length, position);
+        this.position = position + bytes;
+        return bytes;
+    }
+    chmod(perm) {
+        this.node.chmod(perm);
+    }
+    chown(uid, gid) {
+        this.node.chown(uid, gid);
+    }
+}
+exports.File = File;
+//# sourceMappingURL=File.js.map

node_modules/@jsonjoy.com/fs-core/lib/File.js.map

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node_modules/@jsonjoy.com/fs-core/lib/Link.d.ts

@@ -0,0 +1,38 @@
+import { FanOut } from 'thingies/lib/fanout';
+import type { Node } from './Node';
+import type { Superblock } from './Superblock';
+export type LinkEventChildAdd = [type: 'child:add', link: Link, parent: Link];
+export type LinkEventChildDelete = [type: 'child:del', link: Link, parent: Link];
+export type LinkEvent = LinkEventChildAdd | LinkEventChildDelete;
+/**
+ * Represents a hard link that points to an i-node `node`.
+ */
+export declare class Link {
+    readonly changes: FanOut<LinkEvent>;
+    vol: Superblock;
+    parent: Link | undefined;
+    children: Map<string, Link | undefined>;
+    private _steps;
+    node: Node;
+    ino: number;
+    length: number;
+    name: string;
+    get steps(): string[];
+    set steps(val: string[]);
+    constructor(vol: Superblock, parent: Link | undefined, name: string);
+    setNode(node: Node): void;
+    getNode(): Node;
+    createChild(name: string, node?: Node): Link;
+    setChild(name: string, link?: Link): Link;
+    deleteChild(link: Link): void;
+    getChild(name: string): Link | undefined;
+    getPath(): string;
+    getParentPath(): string;
+    getName(): string;
+    toJSON(): {
+        steps: string[];
+        ino: number;
+        children: string[];
+    };
+    syncSteps(): void;
+}

node_modules/@jsonjoy.com/fs-core/lib/Link.js

@@ -0,0 +1,105 @@
+"use strict";
+Object.defineProperty(exports, "__esModule", { value: true });
+exports.Link = void 0;
+const fs_node_utils_1 = require("@jsonjoy.com/fs-node-utils");
+const fanout_1 = require("thingies/lib/fanout");
+const { S_IFREG } = fs_node_utils_1.constants;
+/**
+ * Represents a hard link that points to an i-node `node`.
+ */
+class Link {
+    get steps() {
+        return this._steps;
+    }
+    // Recursively sync children steps, e.g. in case of dir rename
+    set steps(val) {
+        this._steps = val;
+        for (const [child, link] of this.children.entries()) {
+            if (child === '.' || child === '..') {
+                continue;
+            }
+            link?.syncSteps();
+        }
+    }
+    constructor(vol, parent, name) {
+        this.changes = new fanout_1.FanOut();
+        this.children = new Map();
+        // Path to this node as Array: ['usr', 'bin', 'node'].
+        this._steps = [];
+        // "i-node" number of the node.
+        this.ino = 0;
+        // Number of children.
+        this.length = 0;
+        this.vol = vol;
+        this.parent = parent;
+        this.name = name;
+        this.syncSteps();
+    }
+    setNode(node) {
+        this.node = node;
+        this.ino = node.ino;
+    }
+    getNode() {
+        return this.node;
+    }
+    createChild(name, node = this.vol.createNode(S_IFREG | 0o666)) {
+        const link = new Link(this.vol, this, name);
+        link.setNode(node);
+        if (node.isDirectory()) {
+            link.children.set('.', link);
+            link.getNode().nlink++;
+        }
+        this.setChild(name, link);
+        return link;
+    }
+    setChild(name, link = new Link(this.vol, this, name)) {
+        this.children.set(name, link);
+        link.parent = this;
+        this.length++;
+        const node = link.getNode();
+        if (node.isDirectory()) {
+            link.children.set('..', this);
+            this.getNode().nlink++;
+        }
+        this.getNode().mtime = new Date();
+        this.changes.emit(['child:add', link, this]);
+        return link;
+    }
+    deleteChild(link) {
+        const node = link.getNode();
+        if (node.isDirectory()) {
+            link.children.delete('..');
+            this.getNode().nlink--;
+        }
+        this.children.delete(link.getName());
+        this.length--;
+        this.getNode().mtime = new Date();
+        this.changes.emit(['child:del', link, this]);
+    }
+    getChild(name) {
+        this.getNode().atime = new Date();
+        return this.children.get(name);
+    }
+    getPath() {
+        return this.steps.join("/" /* PATH.SEP */);
+    }
+    getParentPath() {
+        const parent = this.steps.slice(0, -1).join("/" /* PATH.SEP */);
+        return parent ? parent : "/" /* PATH.SEP */;
+    }
+    getName() {
+        return this.steps[this.steps.length - 1];
+    }
+    toJSON() {
+        return {
+            steps: this.steps,
+            ino: this.ino,
+            children: Array.from(this.children.keys()),
+        };
+    }
+    syncSteps() {
+        this.steps = this.parent ? this.parent.steps.concat([this.name]) : [this.name];
+    }
+}
+exports.Link = Link;
+//# sourceMappingURL=Link.js.map

node_modules/@jsonjoy.com/fs-core/lib/Link.js.map

@@ -0,0 +1 @@
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node_modules/@jsonjoy.com/fs-core/lib/Node.d.ts

@@ -0,0 +1,85 @@
+import { FanOut } from 'thingies/lib/fanout';
+import { Buffer } from '@jsonjoy.com/fs-node-builtins/lib/internal/buffer';
+export type NodeEventModify = [type: 'modify'];
+export type NodeEventDelete = [type: 'delete'];
+export type NodeEvent = NodeEventModify | NodeEventDelete;
+/**
+ * Node in a file system (like i-node, v-node).
+ */
+export declare class Node {
+    readonly changes: FanOut<NodeEvent>;
+    ino: number;
+    private _uid;
+    private _gid;
+    private _atime;
+    private _mtime;
+    private _ctime;
+    buf: Buffer;
+    /** Total allocated memory capacity for this node. */
+    private capacity;
+    /** Actually used bytes to store content. */
+    private size;
+    rdev: number;
+    mode: number;
+    private _nlink;
+    symlink: string;
+    constructor(ino: number, mode?: number);
+    set ctime(ctime: Date);
+    get ctime(): Date;
+    set uid(uid: number);
+    get uid(): number;
+    set gid(gid: number);
+    get gid(): number;
+    set atime(atime: Date);
+    get atime(): Date;
+    set mtime(mtime: Date);
+    get mtime(): Date;
+    get perm(): number;
+    set perm(perm: number);
+    set nlink(nlink: number);
+    get nlink(): number;
+    getString(encoding?: BufferEncoding): string;
+    setString(str: string): void;
+    getBuffer(): Buffer;
+    setBuffer(buf: Buffer): void;
+    private _setBuf;
+    getSize(): number;
+    setModeProperty(property: number): void;
+    isFile(): boolean;
+    isDirectory(): boolean;
+    isSymlink(): boolean;
+    isCharacterDevice(): boolean;
+    makeSymlink(symlink: string): void;
+    write(buf: Buffer, off?: number, len?: number, pos?: number): number;
+    /**
+     * Read data from the file.
+     *
+     * @param buf Buffer to read data into.
+     * @param off Offset int the `buf` where to start writing data.
+     * @param len How many bytes to read. Equals to `buf.byteLength` by default.
+     * @param pos Position offset in file where to start reading. Defaults to `0`.
+     * @returns Returns the number of bytes read.
+     */
+    read(buf: Buffer | ArrayBufferView | DataView, off?: number, len?: number, pos?: number): number;
+    truncate(len?: number): void;
+    chmod(perm: number): void;
+    chown(uid: number, gid: number): void;
+    touch(): void;
+    canRead(uid?: number, gid?: number): boolean;
+    canWrite(uid?: number, gid?: number): boolean;
+    canExecute(uid?: number, gid?: number): boolean;
+    del(): void;
+    toJSON(): {
+        ino: number;
+        uid: number;
+        gid: number;
+        atime: number;
+        mtime: number;
+        ctime: number;
+        perm: number;
+        mode: number;
+        nlink: number;
+        symlink: string;
+        data: string;
+    };
+}

node_modules/@jsonjoy.com/fs-core/lib/Node.js

@@ -0,0 +1,287 @@
+"use strict";
+Object.defineProperty(exports, "__esModule", { value: true });
+exports.Node = void 0;
+const fanout_1 = require("thingies/lib/fanout");
+const process_1 = require("./process");
+const buffer_1 = require("@jsonjoy.com/fs-node-builtins/lib/internal/buffer");
+const fs_node_utils_1 = require("@jsonjoy.com/fs-node-utils");
+const { S_IFMT, S_IFDIR, S_IFREG, S_IFLNK, S_IFCHR } = fs_node_utils_1.constants;
+const getuid = () => process_1.default.getuid?.() ?? 0;
+const getgid = () => process_1.default.getgid?.() ?? 0;
+const EMPTY_BUFFER = (0, buffer_1.bufferAllocUnsafe)(0);
+/**
+ * Node in a file system (like i-node, v-node).
+ */
+class Node {
+    constructor(ino, mode = 0o666) {
+        this.changes = new fanout_1.FanOut();
+        // User ID and group ID.
+        this._uid = getuid();
+        this._gid = getgid();
+        this._atime = new Date();
+        this._mtime = new Date();
+        this._ctime = new Date();
+        this.buf = EMPTY_BUFFER;
+        /** Total allocated memory capacity for this node. */
+        this.capacity = 0;
+        /** Actually used bytes to store content. */
+        this.size = 0;
+        this.rdev = 0;
+        // Number of hard links pointing at this Node.
+        this._nlink = 1;
+        this.mode = mode;
+        this.ino = ino;
+    }
+    set ctime(ctime) {
+        this._ctime = ctime;
+    }
+    get ctime() {
+        return this._ctime;
+    }
+    set uid(uid) {
+        this._uid = uid;
+        this.ctime = new Date();
+    }
+    get uid() {
+        return this._uid;
+    }
+    set gid(gid) {
+        this._gid = gid;
+        this.ctime = new Date();
+    }
+    get gid() {
+        return this._gid;
+    }
+    set atime(atime) {
+        this._atime = atime;
+    }
+    get atime() {
+        return this._atime;
+    }
+    set mtime(mtime) {
+        this._mtime = mtime;
+        this.ctime = new Date();
+    }
+    get mtime() {
+        return this._mtime;
+    }
+    get perm() {
+        return this.mode & ~S_IFMT;
+    }
+    set perm(perm) {
+        this.mode = (this.mode & S_IFMT) | (perm & ~S_IFMT);
+        this.ctime = new Date();
+    }
+    set nlink(nlink) {
+        this._nlink = nlink;
+        this.ctime = new Date();
+    }
+    get nlink() {
+        return this._nlink;
+    }
+    getString(encoding = 'utf8') {
+        this.atime = new Date();
+        return this.getBuffer().toString(encoding);
+    }
+    setString(str) {
+        this._setBuf((0, buffer_1.bufferFrom)(str, 'utf8'));
+    }
+    getBuffer() {
+        this.atime = new Date();
+        if (!this.buf)
+            this.buf = (0, buffer_1.bufferAllocUnsafe)(0);
+        return (0, buffer_1.bufferFrom)(this.buf.subarray(0, this.size)); // Return a copy of used portion.
+    }
+    setBuffer(buf) {
+        const copy = (0, buffer_1.bufferFrom)(buf); // Creates a copy of data.
+        this._setBuf(copy);
+    }
+    _setBuf(buf) {
+        const size = buf.length;
+        this.buf = buf;
+        this.capacity = size;
+        this.size = size;
+        this.touch();
+    }
+    getSize() {
+        return this.size;
+    }
+    setModeProperty(property) {
+        this.mode = property;
+    }
+    isFile() {
+        return (this.mode & S_IFMT) === S_IFREG;
+    }
+    isDirectory() {
+        return (this.mode & S_IFMT) === S_IFDIR;
+    }
+    isSymlink() {
+        // return !!this.symlink;
+        return (this.mode & S_IFMT) === S_IFLNK;
+    }
+    isCharacterDevice() {
+        return (this.mode & S_IFMT) === S_IFCHR;
+    }
+    makeSymlink(symlink) {
+        this.mode = S_IFLNK | 0o666;
+        this.symlink = symlink;
+    }
+    write(buf, off = 0, len = buf.length, pos = 0) {
+        const bufLength = buf.length;
+        if (off + len > bufLength)
+            len = bufLength - off;
+        if (len <= 0)
+            return 0;
+        const requiredSize = pos + len;
+        if (requiredSize > this.capacity) {
+            let newCapacity = Math.max(this.capacity * 2, 64);
+            while (newCapacity < requiredSize)
+                newCapacity *= 2;
+            const newBuf = (0, buffer_1.bufferAllocUnsafe)(newCapacity);
+            if (this.size > 0)
+                this.buf.copy(newBuf, 0, 0, this.size);
+            this.buf = newBuf;
+            this.capacity = newCapacity;
+        }
+        if (pos > this.size)
+            this.buf.fill(0, this.size, pos);
+        buf.copy(this.buf, pos, off, off + len);
+        if (requiredSize > this.size)
+            this.size = requiredSize;
+        this.touch();
+        return len;
+    }
+    /**
+     * Read data from the file.
+     *
+     * @param buf Buffer to read data into.
+     * @param off Offset int the `buf` where to start writing data.
+     * @param len How many bytes to read. Equals to `buf.byteLength` by default.
+     * @param pos Position offset in file where to start reading. Defaults to `0`.
+     * @returns Returns the number of bytes read.
+     */
+    read(buf, off = 0, len = buf.byteLength, pos = 0) {
+        this.atime = new Date();
+        if (pos >= this.size)
+            return 0;
+        let actualLen = len;
+        if (actualLen > buf.byteLength)
+            actualLen = buf.byteLength;
+        if (actualLen + pos > this.size)
+            actualLen = this.size - pos;
+        if (actualLen <= 0)
+            return 0;
+        const buf2 = buf instanceof buffer_1.Buffer ? buf : buffer_1.Buffer.from(buf.buffer, buf.byteOffset, buf.byteLength);
+        this.buf.copy(buf2, off, pos, pos + actualLen);
+        return actualLen;
+    }
+    truncate(len = 0) {
+        if (!len) {
+            this.buf = EMPTY_BUFFER;
+            this.capacity = 0;
+            this.size = 0;
+            this.touch();
+            return;
+        }
+        if (len <= this.size)
+            this.size = len;
+        else {
+            if (len > this.capacity) {
+                let newCapacity = Math.max(this.capacity * 2, 64);
+                while (newCapacity < len)
+                    newCapacity *= 2;
+                const buf = (0, buffer_1.bufferAllocUnsafe)(newCapacity);
+                if (this.size > 0)
+                    this.buf.copy(buf, 0, 0, this.size);
+                buf.fill(0, this.size, len);
+                this.buf = buf;
+                this.capacity = newCapacity;
+            }
+            else
+                this.buf.fill(0, this.size, len);
+            this.size = len;
+        }
+        this.touch();
+    }
+    chmod(perm) {
+        this.mode = (this.mode & S_IFMT) | (perm & ~S_IFMT);
+        this.touch();
+    }
+    chown(uid, gid) {
+        this.uid = uid;
+        this.gid = gid;
+        this.touch();
+    }
+    touch() {
+        this.mtime = new Date();
+        this.changes.emit(['modify']);
+    }
+    canRead(uid = getuid(), gid = getgid()) {
+        if (this.perm & 4 /* S.IROTH */) {
+            return true;
+        }
+        if (gid === this.gid) {
+            if (this.perm & 32 /* S.IRGRP */) {
+                return true;
+            }
+        }
+        if (uid === this.uid) {
+            if (this.perm & 256 /* S.IRUSR */) {
+                return true;
+            }
+        }
+        return false;
+    }
+    canWrite(uid = getuid(), gid = getgid()) {
+        if (this.perm & 2 /* S.IWOTH */) {
+            return true;
+        }
+        if (gid === this.gid) {
+            if (this.perm & 16 /* S.IWGRP */) {
+                return true;
+            }
+        }
+        if (uid === this.uid) {
+            if (this.perm & 128 /* S.IWUSR */) {
+                return true;
+            }
+        }
+        return false;
+    }
+    canExecute(uid = getuid(), gid = getgid()) {
+        if (this.perm & 1 /* S.IXOTH */) {
+            return true;
+        }
+        if (gid === this.gid) {
+            if (this.perm & 8 /* S.IXGRP */) {
+                return true;
+            }
+        }
+        if (uid === this.uid) {
+            if (this.perm & 64 /* S.IXUSR */) {
+                return true;
+            }
+        }
+        return false;
+    }
+    del() {
+        this.changes.emit(['delete']);
+    }
+    toJSON() {
+        return {
+            ino: this.ino,
+            uid: this.uid,
+            gid: this.gid,
+            atime: this.atime.getTime(),
+            mtime: this.mtime.getTime(),
+            ctime: this.ctime.getTime(),
+            perm: this.perm,
+            mode: this.mode,
+            nlink: this.nlink,
+            symlink: this.symlink,
+            data: this.getString(),
+        };
+    }
+}
+exports.Node = Node;
+//# sourceMappingURL=Node.js.map

node_modules/@jsonjoy.com/fs-core/lib/Superblock.d.ts

@@ -0,0 +1,92 @@
+import { Node } from './Node';
+import { Link } from './Link';
+import { File } from './File';
+import { Buffer } from '@jsonjoy.com/fs-node-builtins/lib/internal/buffer';
+import { DirectoryJSON, NestedDirectoryJSON } from './json';
+import type { PathLike } from '@jsonjoy.com/fs-node-utils/lib/types/misc';
+import { TFileId, StatError } from './types';
+import { Result } from './result';
+/**
+ * Represents a filesystem superblock, which is the root of a virtual
+ * filesystem in Linux.
+ * @see https://lxr.linux.no/linux+v3.11.2/include/linux/fs.h#L1242
+ */
+export declare class Superblock {
+    static fromJSON(json: DirectoryJSON, cwd?: string): Superblock;
+    static fromNestedJSON(json: NestedDirectoryJSON, cwd?: string): Superblock;
+    /**
+     * Global file descriptor counter. UNIX file descriptors start from 0 and go sequentially
+     * up, so here, in order not to conflict with them, we choose some big number and descrease
+     * the file descriptor of every new opened file.
+     * @type {number}
+     * @todo This should not be static, right?
+     */
+    static fd: number;
+    root: Link;
+    ino: number;
+    inodes: {
+        [ino: number]: Node;
+    };
+    releasedInos: number[];
+    fds: {
+        [fd: number]: File;
+    };
+    releasedFds: number[];
+    maxFiles: number;
+    openFiles: number;
+    constructor(props?: {});
+    createLink(): Link;
+    createLink(parent: Link, name: string, isDirectory?: boolean, mode?: number): Link;
+    deleteLink(link: Link): boolean;
+    private newInoNumber;
+    private newFdNumber;
+    createNode(mode: number): Node;
+    deleteNode(node: Node): void;
+    walk(steps: string[], resolveSymlinks: boolean, checkExistence: boolean, checkAccess: boolean, funcName?: string): Result<Link | null, StatError>;
+    walk(filename: string, resolveSymlinks: boolean, checkExistence: boolean, checkAccess: boolean, funcName?: string): Result<Link | null, StatError>;
+    walk(link: Link, resolveSymlinks: boolean, checkExistence: boolean, checkAccess: boolean, funcName?: string): Result<Link | null, StatError>;
+    walk(stepsOrFilenameOrLink: string[] | string | Link, resolveSymlinks: boolean, checkExistence: boolean, checkAccess: boolean, funcName?: string): Result<Link | null, StatError>;
+    getLink(steps: string[]): Link | null;
+    getLinkOrThrow(filename: string, funcName?: string): Link;
+    getResolvedLink(filenameOrSteps: string | string[]): Link | null;
+    /**
+     * Just like `getLinkOrThrow`, but also dereference/resolves symbolic links.
+     */
+    getResolvedLinkOrThrow(filename: string, funcName?: string): Link;
+    getResolvedLinkResult(filename: string, funcName?: string): Result<Link, StatError>;
+    resolveSymlinks(link: Link): Link | null;
+    /**
+     * Just like `getLinkOrThrow`, but also verifies that the link is a directory.
+     */
+    getLinkAsDirOrThrow(filename: string, funcName?: string): Link;
+    getLinkParent(steps: string[]): Link | null;
+    getLinkParentAsDirOrThrow(filenameOrSteps: string | string[], funcName?: string): Link;
+    getFileByFd(fd: number): File;
+    getFileByFdOrThrow(fd: number, funcName?: string): File;
+    _toJSON(link?: Link, json?: {}, path?: string, asBuffer?: boolean): DirectoryJSON<string | null>;
+    toJSON(paths?: PathLike | PathLike[], json?: {}, isRelative?: boolean, asBuffer?: boolean): DirectoryJSON<string | null>;
+    fromJSON(json: DirectoryJSON, cwd?: string): void;
+    fromNestedJSON(json: NestedDirectoryJSON, cwd?: string): void;
+    reset(): void;
+    mountSync(mountpoint: string, json: DirectoryJSON): void;
+    openLink(link: Link, flagsNum: number, resolveSymlinks?: boolean): File;
+    protected openFile(filename: string, flagsNum: number, modeNum: number | undefined, resolveSymlinks?: boolean): File;
+    readonly open: (filename: string, flagsNum: number, modeNum: number, resolveSymlinks?: boolean) => number;
+    readonly writeFile: (id: TFileId, buf: Buffer, flagsNum: number, modeNum: number) => void;
+    readonly read: (fd: number, buffer: Buffer | ArrayBufferView | DataView, offset: number, length: number, position: number | null) => number;
+    readonly readv: (fd: number, buffers: ArrayBufferView[], position: number | null) => number;
+    readonly link: (filename1: string, filename2: string) => void;
+    readonly unlink: (filename: string) => void;
+    readonly symlink: (targetFilename: string, pathFilename: string) => Link;
+    readonly rename: (oldPathFilename: string, newPathFilename: string) => void;
+    readonly mkdir: (filename: string, modeNum: number) => void;
+    /**
+     * Creates directory tree recursively.
+     */
+    readonly mkdirp: (filename: string, modeNum: number) => string | undefined;
+    readonly rmdir: (filename: string, recursive?: boolean) => void;
+    readonly rm: (filename: string, force?: boolean, recursive?: boolean) => void;
+    protected closeFile(file: File): void;
+    readonly close: (fd: number) => void;
+    write(fd: number, buf: Buffer, offset?: number, length?: number, position?: number | null): number;
+}

node_modules/@jsonjoy.com/fs-core/lib/Superblock.js

@@ -0,0 +1,688 @@
+"use strict";
+Object.defineProperty(exports, "__esModule", { value: true });
+exports.Superblock = void 0;
+const path_1 = require("@jsonjoy.com/fs-node-builtins/lib/path");
+const Node_1 = require("./Node");
+const Link_1 = require("./Link");
+const File_1 = require("./File");
+const buffer_1 = require("@jsonjoy.com/fs-node-builtins/lib/internal/buffer");
+const process_1 = require("./process");
+const fs_node_utils_1 = require("@jsonjoy.com/fs-node-utils");
+const fs_node_utils_2 = require("@jsonjoy.com/fs-node-utils");
+const util_1 = require("./util");
+const json_1 = require("./json");
+const result_1 = require("./result");
+const pathSep = path_1.posix ? path_1.posix.sep : path_1.sep;
+const pathRelative = path_1.posix ? path_1.posix.relative : path_1.relative;
+const pathJoin = path_1.posix ? path_1.posix.join : path_1.join;
+const { O_RDONLY, O_WRONLY, O_RDWR, O_CREAT, O_EXCL, O_TRUNC, O_APPEND, O_DIRECTORY } = fs_node_utils_1.constants;
+/**
+ * Represents a filesystem superblock, which is the root of a virtual
+ * filesystem in Linux.
+ * @see https://lxr.linux.no/linux+v3.11.2/include/linux/fs.h#L1242
+ */
+class Superblock {
+    static fromJSON(json, cwd) {
+        const vol = new Superblock();
+        vol.fromJSON(json, cwd);
+        return vol;
+    }
+    static fromNestedJSON(json, cwd) {
+        const vol = new Superblock();
+        vol.fromNestedJSON(json, cwd);
+        return vol;
+    }
+    constructor(props = {}) {
+        // I-node number counter.
+        this.ino = 0;
+        // A mapping for i-node numbers to i-nodes (`Node`);
+        this.inodes = {};
+        // List of released i-node numbers, for reuse.
+        this.releasedInos = [];
+        // A mapping for file descriptors to `File`s.
+        this.fds = {};
+        // A list of reusable (opened and closed) file descriptors, that should be
+        // used first before creating a new file descriptor.
+        this.releasedFds = [];
+        // Max number of open files.
+        this.maxFiles = 10000;
+        // Current number of open files.
+        this.openFiles = 0;
+        this.open = (filename, flagsNum, modeNum, resolveSymlinks = true) => {
+            const file = this.openFile(filename, flagsNum, modeNum, resolveSymlinks);
+            if (!file)
+                throw (0, util_1.createError)("ENOENT" /* ERROR_CODE.ENOENT */, 'open', filename);
+            return file.fd;
+        };
+        this.writeFile = (id, buf, flagsNum, modeNum) => {
+            const isUserFd = typeof id === 'number';
+            let fd;
+            if (isUserFd)
+                fd = id;
+            else
+                fd = this.open((0, util_1.pathToFilename)(id), flagsNum, modeNum);
+            let offset = 0;
+            let length = buf.length;
+            let position = flagsNum & O_APPEND ? undefined : 0;
+            try {
+                while (length > 0) {
+                    const written = this.write(fd, buf, offset, length, position);
+                    offset += written;
+                    length -= written;
+                    if (position !== undefined)
+                        position += written;
+                }
+            }
+            finally {
+                if (!isUserFd)
+                    this.close(fd);
+            }
+        };
+        this.read = (fd, buffer, offset, length, position) => {
+            if (buffer.byteLength < length) {
+                throw (0, util_1.createError)("ERR_OUT_OF_RANGE" /* ERROR_CODE.ERR_OUT_OF_RANGE */, 'read', undefined, undefined, RangeError);
+            }
+            const file = this.getFileByFdOrThrow(fd);
+            if (file.node.isSymlink()) {
+                throw (0, util_1.createError)("EPERM" /* ERROR_CODE.EPERM */, 'read', file.link.getPath());
+            }
+            return file.read(buffer, Number(offset), Number(length), position === -1 || typeof position !== 'number' ? undefined : position);
+        };
+        this.readv = (fd, buffers, position) => {
+            const file = this.getFileByFdOrThrow(fd);
+            let p = position ?? undefined;
+            if (p === -1)
+                p = undefined;
+            let bytesRead = 0;
+            for (const buffer of buffers) {
+                const bytes = file.read(buffer, 0, buffer.byteLength, p);
+                p = undefined;
+                bytesRead += bytes;
+                if (bytes < buffer.byteLength)
+                    break;
+            }
+            return bytesRead;
+        };
+        this.link = (filename1, filename2) => {
+            let link1;
+            try {
+                link1 = this.getLinkOrThrow(filename1, 'link');
+            }
+            catch (err) {
+                if (err.code)
+                    err = (0, util_1.createError)(err.code, 'link', filename1, filename2);
+                throw err;
+            }
+            const dirname2 = (0, path_1.dirname)(filename2);
+            let dir2;
+            try {
+                dir2 = this.getLinkOrThrow(dirname2, 'link');
+            }
+            catch (err) {
+                // Augment error with filename1
+                if (err.code)
+                    err = (0, util_1.createError)(err.code, 'link', filename1, filename2);
+                throw err;
+            }
+            const name = (0, path_1.basename)(filename2);
+            if (dir2.getChild(name))
+                throw (0, util_1.createError)("EEXIST" /* ERROR_CODE.EEXIST */, 'link', filename1, filename2);
+            const node = link1.getNode();
+            node.nlink++;
+            dir2.createChild(name, node);
+        };
+        this.unlink = (filename) => {
+            const link = this.getLinkOrThrow(filename, 'unlink');
+            // TODO: Check if it is file, dir, other...
+            if (link.length)
+                throw Error('Dir not empty...');
+            this.deleteLink(link);
+            const node = link.getNode();
+            node.nlink--;
+            // When all hard links to i-node are deleted, remove the i-node, too.
+            if (node.nlink <= 0) {
+                this.deleteNode(node);
+            }
+        };
+        this.symlink = (targetFilename, pathFilename) => {
+            const pathSteps = (0, util_1.filenameToSteps)(pathFilename);
+            // Check if directory exists, where we about to create a symlink.
+            let dirLink;
+            try {
+                dirLink = this.getLinkParentAsDirOrThrow(pathSteps);
+            }
+            catch (err) {
+                // Catch error to populate with the correct fields - getLinkParentAsDirOrThrow won't be aware of the second path
+                if (err.code)
+                    err = (0, util_1.createError)(err.code, 'symlink', targetFilename, pathFilename);
+                throw err;
+            }
+            const name = pathSteps[pathSteps.length - 1];
+            // Check if new file already exists.
+            if (dirLink.getChild(name))
+                throw (0, util_1.createError)("EEXIST" /* ERROR_CODE.EEXIST */, 'symlink', targetFilename, pathFilename);
+            // Check permissions on the path where we are creating the symlink.
+            // Note we're not checking permissions on the target path: It is not an error to create a symlink to a
+            // non-existent or inaccessible target
+            const node = dirLink.getNode();
+            if (!node.canExecute() || !node.canWrite())
+                throw (0, util_1.createError)("EACCES" /* ERROR_CODE.EACCES */, 'symlink', targetFilename, pathFilename);
+            // Create symlink.
+            const symlink = dirLink.createChild(name);
+            symlink.getNode().makeSymlink(targetFilename);
+            return symlink;
+        };
+        this.rename = (oldPathFilename, newPathFilename) => {
+            let link;
+            try {
+                link = this.getResolvedLinkOrThrow(oldPathFilename);
+            }
+            catch (err) {
+                // Augment err with newPathFilename
+                if (err.code)
+                    err = (0, util_1.createError)(err.code, 'rename', oldPathFilename, newPathFilename);
+                throw err;
+            }
+            // TODO: Check if it is directory, if non-empty, we cannot move it, right?
+            // Check directory exists for the new location.
+            let newPathDirLink;
+            try {
+                newPathDirLink = this.getLinkParentAsDirOrThrow(newPathFilename);
+            }
+            catch (err) {
+                // Augment error with oldPathFilename
+                if (err.code)
+                    err = (0, util_1.createError)(err.code, 'rename', oldPathFilename, newPathFilename);
+                throw err;
+            }
+            // TODO: Also treat cases with directories and symbolic links.
+            // TODO: See: http://man7.org/linux/man-pages/man2/rename.2.html
+            // Remove hard link from old folder.
+            const oldLinkParent = link.parent;
+            if (!oldLinkParent)
+                throw (0, util_1.createError)("EINVAL" /* ERROR_CODE.EINVAL */, 'rename', oldPathFilename, newPathFilename);
+            // Check we have access and write permissions in both places
+            const oldParentNode = oldLinkParent.getNode();
+            const newPathDirNode = newPathDirLink.getNode();
+            if (!oldParentNode.canExecute() ||
+                !oldParentNode.canWrite() ||
+                !newPathDirNode.canExecute() ||
+                !newPathDirNode.canWrite()) {
+                throw (0, util_1.createError)("EACCES" /* ERROR_CODE.EACCES */, 'rename', oldPathFilename, newPathFilename);
+            }
+            oldLinkParent.deleteChild(link);
+            // Rename should overwrite the new path, if that exists.
+            const name = (0, path_1.basename)(newPathFilename);
+            link.name = name;
+            link.steps = [...newPathDirLink.steps, name];
+            newPathDirLink.setChild(link.getName(), link);
+        };
+        this.mkdir = (filename, modeNum) => {
+            const steps = (0, util_1.filenameToSteps)(filename);
+            // This will throw if user tries to create root dir `fs.mkdirSync('/')`.
+            if (!steps.length)
+                throw (0, util_1.createError)("EEXIST" /* ERROR_CODE.EEXIST */, 'mkdir', filename);
+            const dir = this.getLinkParentAsDirOrThrow(filename, 'mkdir');
+            // Check path already exists.
+            const name = steps[steps.length - 1];
+            if (dir.getChild(name))
+                throw (0, util_1.createError)("EEXIST" /* ERROR_CODE.EEXIST */, 'mkdir', filename);
+            const node = dir.getNode();
+            if (!node.canWrite() || !node.canExecute())
+                throw (0, util_1.createError)("EACCES" /* ERROR_CODE.EACCES */, 'mkdir', filename);
+            dir.createChild(name, this.createNode(fs_node_utils_1.constants.S_IFDIR | modeNum));
+        };
+        /**
+         * Creates directory tree recursively.
+         */
+        this.mkdirp = (filename, modeNum) => {
+            let created = false;
+            const steps = (0, util_1.filenameToSteps)(filename);
+            let curr = null;
+            let i = steps.length;
+            // Find the longest subpath of filename that still exists:
+            for (i = steps.length; i >= 0; i--) {
+                curr = this.getResolvedLink(steps.slice(0, i));
+                if (curr)
+                    break;
+            }
+            if (!curr) {
+                curr = this.root;
+                i = 0;
+            }
+            // curr is now the last directory that still exists.
+            // (If none of them existed, curr is the root.)
+            // Check access the lazy way:
+            curr = this.getResolvedLinkOrThrow(path_1.sep + steps.slice(0, i).join(path_1.sep), 'mkdir');
+            // Start creating directories:
+            for (i; i < steps.length; i++) {
+                const node = curr.getNode();
+                if (node.isDirectory()) {
+                    // Check we have permissions
+                    if (!node.canExecute() || !node.canWrite())
+                        throw (0, util_1.createError)("EACCES" /* ERROR_CODE.EACCES */, 'mkdir', filename);
+                }
+                else {
+                    throw (0, util_1.createError)("ENOTDIR" /* ERROR_CODE.ENOTDIR */, 'mkdir', filename);
+                }
+                created = true;
+                curr = curr.createChild(steps[i], this.createNode(fs_node_utils_1.constants.S_IFDIR | modeNum));
+            }
+            return created ? filename : undefined;
+        };
+        this.rmdir = (filename, recursive = false) => {
+            const link = this.getLinkAsDirOrThrow(filename, 'rmdir');
+            if (link.length && !recursive)
+                throw (0, util_1.createError)("ENOTEMPTY" /* ERROR_CODE.ENOTEMPTY */, 'rmdir', filename);
+            this.deleteLink(link);
+        };
+        this.rm = (filename, force = false, recursive = false) => {
+            // "stat" is used to match Node's native error message.
+            let link;
+            try {
+                link = this.getResolvedLinkOrThrow(filename, 'stat');
+            }
+            catch (err) {
+                // Silently ignore missing paths if force option is true
+                if (err.code === "ENOENT" /* ERROR_CODE.ENOENT */ && force)
+                    return;
+                else
+                    throw err;
+            }
+            if (link.getNode().isDirectory() && !recursive)
+                throw (0, util_1.createError)("ERR_FS_EISDIR" /* ERROR_CODE.ERR_FS_EISDIR */, 'rm', filename);
+            if (!link.parent?.getNode().canWrite())
+                throw (0, util_1.createError)("EACCES" /* ERROR_CODE.EACCES */, 'rm', filename);
+            this.deleteLink(link);
+        };
+        this.close = (fd) => {
+            (0, util_1.validateFd)(fd);
+            const file = this.getFileByFdOrThrow(fd, 'close');
+            this.closeFile(file);
+        };
+        const root = this.createLink();
+        root.setNode(this.createNode(fs_node_utils_1.constants.S_IFDIR | 0o777));
+        root.setChild('.', root);
+        root.getNode().nlink++;
+        root.setChild('..', root);
+        root.getNode().nlink++;
+        this.root = root;
+    }
+    createLink(parent, name, isDirectory = false, mode) {
+        if (!parent) {
+            return new Link_1.Link(this, void 0, '');
+        }
+        if (!name) {
+            throw new Error('createLink: name cannot be empty');
+        }
+        // If no explicit permission is provided, use defaults based on type
+        const finalPerm = mode ?? (isDirectory ? 0o777 : 0o666);
+        // To prevent making a breaking change, `mode` can also just be a permission number
+        // and the file type is set based on `isDirectory`
+        const hasFileType = mode && mode & fs_node_utils_1.constants.S_IFMT;
+        const modeType = hasFileType ? mode & fs_node_utils_1.constants.S_IFMT : isDirectory ? fs_node_utils_1.constants.S_IFDIR : fs_node_utils_1.constants.S_IFREG;
+        const finalMode = (finalPerm & ~fs_node_utils_1.constants.S_IFMT) | modeType;
+        return parent.createChild(name, this.createNode(finalMode));
+    }
+    deleteLink(link) {
+        const parent = link.parent;
+        if (parent) {
+            parent.deleteChild(link);
+            return true;
+        }
+        return false;
+    }
+    newInoNumber() {
+        const releasedFd = this.releasedInos.pop();
+        if (releasedFd)
+            return releasedFd;
+        else {
+            this.ino = (this.ino + 1) % 0xffffffff;
+            return this.ino;
+        }
+    }
+    newFdNumber() {
+        const releasedFd = this.releasedFds.pop();
+        return typeof releasedFd === 'number' ? releasedFd : Superblock.fd--;
+    }
+    createNode(mode) {
+        const node = new Node_1.Node(this.newInoNumber(), mode);
+        this.inodes[node.ino] = node;
+        return node;
+    }
+    deleteNode(node) {
+        node.del();
+        delete this.inodes[node.ino];
+        this.releasedInos.push(node.ino);
+    }
+    walk(stepsOrFilenameOrLink, resolveSymlinks = false, checkExistence = false, checkAccess = false, funcName) {
+        let steps;
+        let filename;
+        if (stepsOrFilenameOrLink instanceof Link_1.Link) {
+            steps = stepsOrFilenameOrLink.steps;
+            filename = pathSep + steps.join(pathSep);
+        }
+        else if (typeof stepsOrFilenameOrLink === 'string') {
+            steps = (0, util_1.filenameToSteps)(stepsOrFilenameOrLink);
+            filename = stepsOrFilenameOrLink;
+        }
+        else {
+            steps = stepsOrFilenameOrLink;
+            filename = pathSep + steps.join(pathSep);
+        }
+        let curr = this.root;
+        let i = 0;
+        while (i < steps.length) {
+            let node = curr.getNode();
+            // Check access permissions if current link is a directory
+            if (node.isDirectory()) {
+                if (checkAccess && !node.canExecute()) {
+                    return (0, result_1.Err)((0, util_1.createStatError)("EACCES" /* ERROR_CODE.EACCES */, funcName, filename));
+                }
+            }
+            else {
+                if (i < steps.length - 1) {
+                    return (0, result_1.Err)((0, util_1.createStatError)("ENOTDIR" /* ERROR_CODE.ENOTDIR */, funcName, filename));
+                }
+            }
+            curr = curr.getChild(steps[i]) ?? null;
+            // Check existence of current link
+            if (!curr)
+                if (checkExistence) {
+                    return (0, result_1.Err)((0, util_1.createStatError)("ENOENT" /* ERROR_CODE.ENOENT */, funcName, filename));
+                }
+                else {
+                    return (0, result_1.Ok)(null);
+                }
+            node = curr?.getNode();
+            // Resolve symlink if we're resolving all symlinks OR if this is an intermediate path component
+            // This allows lstat to traverse through symlinks in intermediate directories while not resolving the final component
+            if (node.isSymlink() && (resolveSymlinks || i < steps.length - 1)) {
+                const resolvedPath = (0, path_1.isAbsolute)(node.symlink) ? node.symlink : pathJoin((0, path_1.dirname)(curr.getPath()), node.symlink); // Relative to symlink's parent
+                steps = (0, util_1.filenameToSteps)(resolvedPath).concat(steps.slice(i + 1));
+                curr = this.root;
+                i = 0;
+                continue;
+            }
+            // After resolving symlinks, check if it's not a directory and we still have more steps
+            // This handles the case where we try to traverse through a file
+            // Only do this check when we're doing filesystem operations (checkExistence = true)
+            if (checkExistence && !node.isDirectory() && i < steps.length - 1) {
+                // On Windows, use ENOENT for consistency with Node.js behavior
+                // On other platforms, use ENOTDIR which is more semantically correct
+                const errorCode = process_1.default.platform === 'win32' ? "ENOENT" /* ERROR_CODE.ENOENT */ : "ENOTDIR" /* ERROR_CODE.ENOTDIR */;
+                return (0, result_1.Err)((0, util_1.createStatError)(errorCode, funcName, filename));
+            }
+            i++;
+        }
+        return (0, result_1.Ok)(curr);
+    }
+    // Returns a `Link` (hard link) referenced by path "split" into steps.
+    getLink(steps) {
+        const result = this.walk(steps, false, false, false);
+        if (result.ok) {
+            return result.value;
+        }
+        throw result.err.toError();
+    }
+    // Just link `getLink`, but throws a correct user error, if link to found.
+    getLinkOrThrow(filename, funcName) {
+        const result = this.walk(filename, false, true, true, funcName);
+        if (result.ok) {
+            return result.value;
+        }
+        throw result.err.toError();
+    }
+    // Just like `getLink`, but also dereference/resolves symbolic links.
+    getResolvedLink(filenameOrSteps) {
+        const result = this.walk(filenameOrSteps, true, false, false);
+        if (result.ok) {
+            return result.value;
+        }
+        throw result.err.toError();
+    }
+    /**
+     * Just like `getLinkOrThrow`, but also dereference/resolves symbolic links.
+     */
+    getResolvedLinkOrThrow(filename, funcName) {
+        const result = this.walk(filename, true, true, true, funcName);
+        if (result.ok) {
+            return result.value;
+        }
+        throw result.err.toError();
+    }
+    getResolvedLinkResult(filename, funcName) {
+        const result = this.walk(filename, true, true, true, funcName);
+        if (result.ok) {
+            return (0, result_1.Ok)(result.value);
+        }
+        return result;
+    }
+    resolveSymlinks(link) {
+        return this.getResolvedLink(link.steps.slice(1));
+    }
+    /**
+     * Just like `getLinkOrThrow`, but also verifies that the link is a directory.
+     */
+    getLinkAsDirOrThrow(filename, funcName) {
+        const link = this.getLinkOrThrow(filename, funcName);
+        if (!link.getNode().isDirectory())
+            throw (0, util_1.createError)("ENOTDIR" /* ERROR_CODE.ENOTDIR */, funcName, filename);
+        return link;
+    }
+    // Get the immediate parent directory of the link.
+    getLinkParent(steps) {
+        return this.getLink(steps.slice(0, -1));
+    }
+    getLinkParentAsDirOrThrow(filenameOrSteps, funcName) {
+        const steps = (filenameOrSteps instanceof Array ? filenameOrSteps : (0, util_1.filenameToSteps)(filenameOrSteps)).slice(0, -1);
+        const filename = pathSep + steps.join(pathSep);
+        const link = this.getLinkOrThrow(filename, funcName);
+        if (!link.getNode().isDirectory())
+            throw (0, util_1.createError)("ENOTDIR" /* ERROR_CODE.ENOTDIR */, funcName, filename);
+        return link;
+    }
+    getFileByFd(fd) {
+        return this.fds[String(fd)];
+    }
+    getFileByFdOrThrow(fd, funcName) {
+        if (!(0, util_1.isFd)(fd))
+            throw TypeError(fs_node_utils_2.ERRSTR.FD);
+        const file = this.getFileByFd(fd);
+        if (!file)
+            throw (0, util_1.createError)("EBADF" /* ERROR_CODE.EBADF */, funcName);
+        return file;
+    }
+    _toJSON(link = this.root, json = {}, path, asBuffer) {
+        let isEmpty = true;
+        let children = link.children;
+        if (link.getNode().isFile()) {
+            children = new Map([[link.getName(), link.parent.getChild(link.getName())]]);
+            link = link.parent;
+        }
+        for (const name of children.keys()) {
+            if (name === '.' || name === '..') {
+                continue;
+            }
+            isEmpty = false;
+            const child = link.getChild(name);
+            if (!child) {
+                throw new Error('_toJSON: unexpected undefined');
+            }
+            const node = child.getNode();
+            if (node.isFile()) {
+                let filename = child.getPath();
+                if (path)
+                    filename = pathRelative(path, filename);
+                json[filename] = asBuffer ? node.getBuffer() : node.getString();
+            }
+            else if (node.isDirectory()) {
+                this._toJSON(child, json, path, asBuffer);
+            }
+        }
+        let dirPath = link.getPath();
+        if (path)
+            dirPath = pathRelative(path, dirPath);
+        if (dirPath && isEmpty) {
+            json[dirPath] = null;
+        }
+        return json;
+    }
+    toJSON(paths, json = {}, isRelative = false, asBuffer = false) {
+        const links = [];
+        if (paths) {
+            if (!Array.isArray(paths))
+                paths = [paths];
+            for (const path of paths) {
+                const filename = (0, util_1.pathToFilename)(path);
+                const link = this.getResolvedLink(filename);
+                if (!link)
+                    continue;
+                links.push(link);
+            }
+        }
+        else {
+            links.push(this.root);
+        }
+        if (!links.length)
+            return json;
+        for (const link of links)
+            this._toJSON(link, json, isRelative ? link.getPath() : '', asBuffer);
+        return json;
+    }
+    // TODO: `cwd` should probably not invoke `process.cwd()`.
+    fromJSON(json, cwd = process_1.default.cwd()) {
+        for (let filename in json) {
+            const data = json[filename];
+            filename = (0, util_1.resolve)(filename, cwd);
+            if (typeof data === 'string' || data instanceof buffer_1.Buffer) {
+                const dir = (0, path_1.dirname)(filename);
+                this.mkdirp(dir, 511 /* MODE.DIR */);
+                const buffer = (0, util_1.dataToBuffer)(data);
+                this.writeFile(filename, buffer, fs_node_utils_2.FLAGS.w, 438 /* MODE.DEFAULT */);
+            }
+            else {
+                this.mkdirp(filename, 511 /* MODE.DIR */);
+            }
+        }
+    }
+    fromNestedJSON(json, cwd) {
+        this.fromJSON((0, json_1.flattenJSON)(json), cwd);
+    }
+    reset() {
+        this.ino = 0;
+        this.inodes = {};
+        this.releasedInos = [];
+        this.fds = {};
+        this.releasedFds = [];
+        this.openFiles = 0;
+        this.root = this.createLink();
+        this.root.setNode(this.createNode(fs_node_utils_1.constants.S_IFDIR | 0o777));
+    }
+    // Legacy interface
+    mountSync(mountpoint, json) {
+        this.fromJSON(json, mountpoint);
+    }
+    openLink(link, flagsNum, resolveSymlinks = true) {
+        if (this.openFiles >= this.maxFiles) {
+            // Too many open files.
+            throw (0, util_1.createError)("EMFILE" /* ERROR_CODE.EMFILE */, 'open', link.getPath());
+        }
+        // Resolve symlinks.
+        //
+        // @TODO: This should be superfluous. This method is only ever called by openFile(), which does its own symlink resolution
+        // prior to calling.
+        let realLink = link;
+        if (resolveSymlinks)
+            realLink = this.getResolvedLinkOrThrow(link.getPath(), 'open');
+        const node = realLink.getNode();
+        // Check whether node is a directory
+        if (node.isDirectory()) {
+            if ((flagsNum & (O_RDONLY | O_RDWR | O_WRONLY)) !== O_RDONLY)
+                throw (0, util_1.createError)("EISDIR" /* ERROR_CODE.EISDIR */, 'open', link.getPath());
+        }
+        else {
+            if (flagsNum & O_DIRECTORY)
+                throw (0, util_1.createError)("ENOTDIR" /* ERROR_CODE.ENOTDIR */, 'open', link.getPath());
+        }
+        // Check node permissions
+        // For read access: check if flags are O_RDONLY or O_RDWR (i.e., not only O_WRONLY)
+        if ((flagsNum & (O_RDONLY | O_RDWR | O_WRONLY)) !== O_WRONLY) {
+            if (!node.canRead()) {
+                throw (0, util_1.createError)("EACCES" /* ERROR_CODE.EACCES */, 'open', link.getPath());
+            }
+        }
+        // For write access: check if flags are O_WRONLY or O_RDWR
+        if (flagsNum & (O_WRONLY | O_RDWR)) {
+            if (!node.canWrite()) {
+                throw (0, util_1.createError)("EACCES" /* ERROR_CODE.EACCES */, 'open', link.getPath());
+            }
+        }
+        const file = new File_1.File(link, node, flagsNum, this.newFdNumber());
+        this.fds[file.fd] = file;
+        this.openFiles++;
+        if (flagsNum & O_TRUNC)
+            file.truncate();
+        return file;
+    }
+    openFile(filename, flagsNum, modeNum, resolveSymlinks = true) {
+        const steps = (0, util_1.filenameToSteps)(filename);
+        let link;
+        try {
+            link = resolveSymlinks ? this.getResolvedLinkOrThrow(filename, 'open') : this.getLinkOrThrow(filename, 'open');
+            // Check if file already existed when trying to create it exclusively (O_CREAT and O_EXCL flags are set).
+            // This is an error, see https://pubs.opengroup.org/onlinepubs/009695399/functions/open.html:
+            // "If O_CREAT and O_EXCL are set, open() shall fail if the file exists."
+            if (link && flagsNum & O_CREAT && flagsNum & O_EXCL)
+                throw (0, util_1.createError)("EEXIST" /* ERROR_CODE.EEXIST */, 'open', filename);
+        }
+        catch (err) {
+            // Try creating a new file, if it does not exist and O_CREAT flag is set.
+            // Note that this will still throw if the ENOENT came from one of the
+            // intermediate directories instead of the file itself.
+            if (err.code === "ENOENT" /* ERROR_CODE.ENOENT */ && flagsNum & O_CREAT) {
+                const dirName = (0, path_1.dirname)(filename);
+                const dirLink = this.getResolvedLinkOrThrow(dirName);
+                const dirNode = dirLink.getNode();
+                // Check that the place we create the new file is actually a directory and that we are allowed to do so:
+                if (!dirNode.isDirectory())
+                    throw (0, util_1.createError)("ENOTDIR" /* ERROR_CODE.ENOTDIR */, 'open', filename);
+                if (!dirNode.canExecute() || !dirNode.canWrite())
+                    throw (0, util_1.createError)("EACCES" /* ERROR_CODE.EACCES */, 'open', filename);
+                // This is a difference to the original implementation, which would simply not create a file unless modeNum was specified.
+                // However, current Node versions will default to 0o666.
+                modeNum ?? (modeNum = 0o666);
+                link = this.createLink(dirLink, steps[steps.length - 1], false, modeNum);
+            }
+            else
+                throw err;
+        }
+        if (link)
+            return this.openLink(link, flagsNum, resolveSymlinks);
+        throw (0, util_1.createError)("ENOENT" /* ERROR_CODE.ENOENT */, 'open', filename);
+    }
+    closeFile(file) {
+        if (!this.fds[file.fd])
+            return;
+        this.openFiles--;
+        delete this.fds[file.fd];
+        this.releasedFds.push(file.fd);
+    }
+    write(fd, buf, offset, length, position) {
+        const file = this.getFileByFdOrThrow(fd, 'write');
+        if (file.node.isSymlink()) {
+            throw (0, util_1.createError)("EBADF" /* ERROR_CODE.EBADF */, 'write', file.link.getPath());
+        }
+        return file.write(buf, offset, length, position === -1 || typeof position !== 'number' ? undefined : position);
+    }
+}
+exports.Superblock = Superblock;
+/**
+ * Global file descriptor counter. UNIX file descriptors start from 0 and go sequentially
+ * up, so here, in order not to conflict with them, we choose some big number and descrease
+ * the file descriptor of every new opened file.
+ * @type {number}
+ * @todo This should not be static, right?
+ */
+Superblock.fd = 0x7fffffff;
+//# sourceMappingURL=Superblock.js.map

node_modules/@jsonjoy.com/fs-core/lib/constants.d.ts

@@ -0,0 +1,15 @@
+export declare const enum ERROR_CODE {
+    EPERM = "EPERM",
+    ENOENT = "ENOENT",
+    EBADF = "EBADF",
+    EINVAL = "EINVAL",
+    EEXIST = "EEXIST",
+    ENOTDIR = "ENOTDIR",
+    EMFILE = "EMFILE",
+    EACCES = "EACCES",
+    EISDIR = "EISDIR",
+    ENOTEMPTY = "ENOTEMPTY",
+    ENOSYS = "ENOSYS",
+    ERR_FS_EISDIR = "ERR_FS_EISDIR",
+    ERR_OUT_OF_RANGE = "ERR_OUT_OF_RANGE"
+}

node_modules/@jsonjoy.com/fs-core/lib/constants.js

@@ -0,0 +1,3 @@
+"use strict";
+Object.defineProperty(exports, "__esModule", { value: true });
+//# sourceMappingURL=constants.js.map

node_modules/@jsonjoy.com/fs-core/lib/constants.js.map

@@ -0,0 +1 @@
+{"version":3,"file":"constants.js","sourceRoot":"","sources":["../src/constants.ts"],"names":[],"mappings":""}

node_modules/@jsonjoy.com/fs-core/lib/encoding.d.ts

@@ -0,0 +1,6 @@
+import { Buffer } from '@jsonjoy.com/fs-node-builtins/lib/internal/buffer';
+export type TDataOut = string | Buffer;
+export type TEncodingExtended = BufferEncoding | 'buffer';
+export declare const ENCODING_UTF8: BufferEncoding;
+export declare function assertEncoding(encoding: string | undefined): void;
+export declare function strToEncoding(str: string, encoding?: TEncodingExtended): TDataOut;

node_modules/@jsonjoy.com/fs-core/lib/encoding.js

@@ -0,0 +1,20 @@
+"use strict";
+Object.defineProperty(exports, "__esModule", { value: true });
+exports.ENCODING_UTF8 = void 0;
+exports.assertEncoding = assertEncoding;
+exports.strToEncoding = strToEncoding;
+const buffer_1 = require("@jsonjoy.com/fs-node-builtins/lib/internal/buffer");
+const errors = require("@jsonjoy.com/fs-node-builtins/lib/internal/errors");
+exports.ENCODING_UTF8 = 'utf8';
+function assertEncoding(encoding) {
+    if (encoding && !buffer_1.Buffer.isEncoding(encoding))
+        throw new errors.TypeError('ERR_INVALID_OPT_VALUE_ENCODING', encoding);
+}
+function strToEncoding(str, encoding) {
+    if (!encoding || encoding === exports.ENCODING_UTF8)
+        return str; // UTF-8
+    if (encoding === 'buffer')
+        return new buffer_1.Buffer(str); // `buffer` encoding
+    return new buffer_1.Buffer(str).toString(encoding); // Custom encoding
+}
+//# sourceMappingURL=encoding.js.map

node_modules/@jsonjoy.com/fs-core/lib/encoding.js.map

@@ -0,0 +1 @@
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node_modules/@jsonjoy.com/fs-core/lib/index.d.ts

@@ -0,0 +1,9 @@
+export * from './types';
+export * from './json';
+export * from './constants';
+export * from './result';
+export { Node, type NodeEvent } from './Node';
+export { Link, type LinkEvent } from './Link';
+export { File } from './File';
+export { Superblock } from './Superblock';
+export { dataToBuffer, filenameToSteps, isFd, validateFd, createError, createStatError, pathToFilename, resolve, } from './util';

node_modules/@jsonjoy.com/fs-core/lib/index.js

@@ -0,0 +1,26 @@
+"use strict";
+Object.defineProperty(exports, "__esModule", { value: true });
+exports.resolve = exports.pathToFilename = exports.createStatError = exports.createError = exports.validateFd = exports.isFd = exports.filenameToSteps = exports.dataToBuffer = exports.Superblock = exports.File = exports.Link = exports.Node = void 0;
+const tslib_1 = require("tslib");
+tslib_1.__exportStar(require("./types"), exports);
+tslib_1.__exportStar(require("./json"), exports);
+tslib_1.__exportStar(require("./constants"), exports);
+tslib_1.__exportStar(require("./result"), exports);
+var Node_1 = require("./Node");
+Object.defineProperty(exports, "Node", { enumerable: true, get: function () { return Node_1.Node; } });
+var Link_1 = require("./Link");
+Object.defineProperty(exports, "Link", { enumerable: true, get: function () { return Link_1.Link; } });
+var File_1 = require("./File");
+Object.defineProperty(exports, "File", { enumerable: true, get: function () { return File_1.File; } });
+var Superblock_1 = require("./Superblock");
+Object.defineProperty(exports, "Superblock", { enumerable: true, get: function () { return Superblock_1.Superblock; } });
+var util_1 = require("./util");
+Object.defineProperty(exports, "dataToBuffer", { enumerable: true, get: function () { return util_1.dataToBuffer; } });
+Object.defineProperty(exports, "filenameToSteps", { enumerable: true, get: function () { return util_1.filenameToSteps; } });
+Object.defineProperty(exports, "isFd", { enumerable: true, get: function () { return util_1.isFd; } });
+Object.defineProperty(exports, "validateFd", { enumerable: true, get: function () { return util_1.validateFd; } });
+Object.defineProperty(exports, "createError", { enumerable: true, get: function () { return util_1.createError; } });
+Object.defineProperty(exports, "createStatError", { enumerable: true, get: function () { return util_1.createStatError; } });
+Object.defineProperty(exports, "pathToFilename", { enumerable: true, get: function () { return util_1.pathToFilename; } });
+Object.defineProperty(exports, "resolve", { enumerable: true, get: function () { return util_1.resolve; } });
+//# sourceMappingURL=index.js.map

node_modules/@jsonjoy.com/fs-core/lib/index.js.map

@@ -0,0 +1 @@
+{"version":3,"file":"index.js","sourceRoot":"","sources":["../src/index.ts"],"names":[],"mappings":";;;;AAAA,kDAAwB;AACxB,iDAAuB;AACvB,sDAA4B;AAC5B,mDAAyB;AACzB,+BAA8C;AAArC,4FAAA,IAAI,OAAA;AACb,+BAA8C;AAArC,4FAAA,IAAI,OAAA;AACb,+BAA8B;AAArB,4FAAA,IAAI,OAAA;AACb,2CAA0C;AAAjC,wGAAA,UAAU,OAAA;AACnB,+BASgB;AARd,oGAAA,YAAY,OAAA;AACZ,uGAAA,eAAe,OAAA;AACf,4FAAA,IAAI,OAAA;AACJ,kGAAA,UAAU,OAAA;AACV,mGAAA,WAAW,OAAA;AACX,uGAAA,eAAe,OAAA;AACf,sGAAA,cAAc,OAAA;AACd,+FAAA,OAAO,OAAA"}

node_modules/@jsonjoy.com/fs-core/lib/json.d.ts

@@ -0,0 +1,9 @@
+import { Buffer } from '@jsonjoy.com/fs-node-builtins/lib/internal/buffer';
+export type DirectoryContent = string | Buffer | null;
+export interface DirectoryJSON<T extends DirectoryContent = DirectoryContent> {
+    [key: string]: T;
+}
+export interface NestedDirectoryJSON<T extends DirectoryContent = DirectoryContent> {
+    [key: string]: T | NestedDirectoryJSON;
+}
+export declare const flattenJSON: (nestedJSON: NestedDirectoryJSON) => DirectoryJSON;

node_modules/@jsonjoy.com/fs-core/lib/json.js

@@ -0,0 +1,35 @@
+"use strict";
+Object.defineProperty(exports, "__esModule", { value: true });
+exports.flattenJSON = void 0;
+const buffer_1 = require("@jsonjoy.com/fs-node-builtins/lib/internal/buffer");
+const path_1 = require("@jsonjoy.com/fs-node-builtins/lib/path");
+const pathJoin = path_1.posix ? path_1.posix.join : path_1.join;
+const flattenJSON = (nestedJSON) => {
+    const flatJSON = {};
+    function flatten(pathPrefix, node) {
+        for (const path in node) {
+            const contentOrNode = node[path];
+            // TODO: Can we avoid using `join` here? Just concatenate?
+            const joinedPath = pathJoin(pathPrefix, path);
+            if (typeof contentOrNode === 'string' || contentOrNode instanceof buffer_1.Buffer) {
+                flatJSON[joinedPath] = contentOrNode;
+            }
+            else if (typeof contentOrNode === 'object' &&
+                contentOrNode !== null &&
+                !(contentOrNode instanceof buffer_1.Buffer) &&
+                Object.keys(contentOrNode).length > 0) {
+                // empty directories need an explicit entry and therefore get handled in `else`, non-empty ones are implicitly considered
+                flatten(joinedPath, contentOrNode);
+            }
+            else {
+                // without this branch null, empty-object or non-object entries would not be handled in the same way
+                // by both fromJSON() and fromNestedJSON()
+                flatJSON[joinedPath] = null;
+            }
+        }
+    }
+    flatten('', nestedJSON);
+    return flatJSON;
+};
+exports.flattenJSON = flattenJSON;
+//# sourceMappingURL=json.js.map

node_modules/@jsonjoy.com/fs-core/lib/json.js.map

@@ -0,0 +1 @@
+{"version":3,"file":"json.js","sourceRoot":"","sources":["../src/json.ts"],"names":[],"mappings":";;;AAAA,8EAA2E;AAC3E,iEAAqE;AAErE,MAAM,QAAQ,GAAG,YAAK,CAAC,CAAC,CAAC,YAAK,CAAC,IAAI,CAAC,CAAC,CAAC,WAAI,CAAC;AAWpC,MAAM,WAAW,GAAG,CAAC,UAA+B,EAAiB,EAAE;IAC5E,MAAM,QAAQ,GAAkB,EAAE,CAAC;IACnC,SAAS,OAAO,CAAC,UAAkB,EAAE,IAAyB;QAC5D,KAAK,MAAM,IAAI,IAAI,IAAI,EAAE,CAAC;YACxB,MAAM,aAAa,GAAG,IAAI,CAAC,IAAI,CAAC,CAAC;YACjC,0DAA0D;YAC1D,MAAM,UAAU,GAAG,QAAQ,CAAC,UAAU,EAAE,IAAI,CAAC,CAAC;YAC9C,IAAI,OAAO,aAAa,KAAK,QAAQ,IAAI,aAAa,YAAY,eAAM,EAAE,CAAC;gBACzE,QAAQ,CAAC,UAAU,CAAC,GAAG,aAAa,CAAC;YACvC,CAAC;iBAAM,IACL,OAAO,aAAa,KAAK,QAAQ;gBACjC,aAAa,KAAK,IAAI;gBACtB,CAAC,CAAC,aAAa,YAAY,eAAM,CAAC;gBAClC,MAAM,CAAC,IAAI,CAAC,aAAa,CAAC,CAAC,MAAM,GAAG,CAAC,EACrC,CAAC;gBACD,yHAAyH;gBACzH,OAAO,CAAC,UAAU,EAAE,aAAsD,CAAC,CAAC;YAC9E,CAAC;iBAAM,CAAC;gBACN,oGAAoG;gBACpG,0CAA0C;gBAC1C,QAAQ,CAAC,UAAU,CAAC,GAAG,IAAI,CAAC;YAC9B,CAAC;QACH,CAAC;IACH,CAAC;IACD,OAAO,CAAC,EAAE,EAAE,UAAU,CAAC,CAAC;IACxB,OAAO,QAAQ,CAAC;AAClB,CAAC,CAAC;AA1BW,QAAA,WAAW,eA0BtB"}

node_modules/@jsonjoy.com/fs-core/lib/process.d.ts

@@ -0,0 +1,11 @@
+export interface IProcess {
+    getuid?(): number;
+    getgid?(): number;
+    cwd(): string;
+    platform: string;
+    emitWarning: (message: string, type: string) => void;
+    env: {};
+}
+export declare function createProcess(): IProcess;
+declare const _default: IProcess;
+export default _default;

node_modules/@jsonjoy.com/fs-core/lib/process.js

@@ -0,0 +1,40 @@
+"use strict";
+// Here we mock the global `process` variable in case we are not in Node's environment.
+Object.defineProperty(exports, "__esModule", { value: true });
+exports.createProcess = createProcess;
+/**
+ * Looks to return a `process` object, if one is available.
+ *
+ * The global `process` is returned if defined;
+ * otherwise `require('process')` is attempted.
+ *
+ * If that fails, `undefined` is returned.
+ *
+ * @return {IProcess | undefined}
+ */
+const maybeReturnProcess = () => {
+    if (typeof process !== 'undefined') {
+        return process;
+    }
+    try {
+        return require('process');
+    }
+    catch {
+        return undefined;
+    }
+};
+function createProcess() {
+    const p = maybeReturnProcess() || {};
+    if (!p.cwd)
+        p.cwd = () => '/';
+    if (!p.emitWarning)
+        p.emitWarning = (message, type) => {
+            // tslint:disable-next-line:no-console
+            console.warn(`${type}${type ? ': ' : ''}${message}`);
+        };
+    if (!p.env)
+        p.env = {};
+    return p;
+}
+exports.default = createProcess();
+//# sourceMappingURL=process.js.map

node_modules/@jsonjoy.com/fs-core/lib/process.js.map

@@ -0,0 +1 @@
+{"version":3,"file":"process.js","sourceRoot":"","sources":["../src/process.ts"],"names":[],"mappings":";AAAA,uFAAuF;;AAgCvF,sCAUC;AA/BD;;;;;;;;;GASG;AACH,MAAM,kBAAkB,GAAG,GAAyB,EAAE;IACpD,IAAI,OAAO,OAAO,KAAK,WAAW,EAAE,CAAC;QACnC,OAAO,OAAO,CAAC;IACjB,CAAC;IACD,IAAI,CAAC;QACH,OAAO,OAAO,CAAC,SAAS,CAAC,CAAC;IAC5B,CAAC;IAAC,MAAM,CAAC;QACP,OAAO,SAAS,CAAC;IACnB,CAAC;AACH,CAAC,CAAC;AAEF,SAAgB,aAAa;IAC3B,MAAM,CAAC,GAAa,kBAAkB,EAAE,IAAK,EAAe,CAAC;IAC7D,IAAI,CAAC,CAAC,CAAC,GAAG;QAAE,CAAC,CAAC,GAAG,GAAG,GAAG,EAAE,CAAC,GAAG,CAAC;IAC9B,IAAI,CAAC,CAAC,CAAC,WAAW;QAChB,CAAC,CAAC,WAAW,GAAG,CAAC,OAAO,EAAE,IAAI,EAAE,EAAE;YAChC,sCAAsC;YACtC,OAAO,CAAC,IAAI,CAAC,GAAG,IAAI,GAAG,IAAI,CAAC,CAAC,CAAC,IAAI,CAAC,CAAC,CAAC,EAAE,GAAG,OAAO,EAAE,CAAC,CAAC;QACvD,CAAC,CAAC;IACJ,IAAI,CAAC,CAAC,CAAC,GAAG;QAAE,CAAC,CAAC,GAAG,GAAG,EAAE,CAAC;IACvB,OAAO,CAAC,CAAC;AACX,CAAC;AAED,kBAAe,aAAa,EAAE,CAAC"}

node_modules/@jsonjoy.com/fs-core/lib/result.d.ts

@@ -0,0 +1,11 @@
+export interface Ok<T> {
+    ok: true;
+    value: T;
+}
+export interface Err<E> {
+    ok: false;
+    err: E;
+}
+export type Result<T, E> = Ok<T> | Err<E>;
+export declare function Ok<T>(value: T): Ok<T>;
+export declare function Err<E>(err: E): Err<E>;

node_modules/@jsonjoy.com/fs-core/lib/result.js

@@ -0,0 +1,11 @@
+"use strict";
+Object.defineProperty(exports, "__esModule", { value: true });
+exports.Ok = Ok;
+exports.Err = Err;
+function Ok(value) {
+    return { ok: true, value };
+}
+function Err(err) {
+    return { ok: false, err };
+}
+//# sourceMappingURL=result.js.map

node_modules/@jsonjoy.com/fs-core/lib/result.js.map

@@ -0,0 +1 @@
+{"version":3,"file":"result.js","sourceRoot":"","sources":["../src/result.ts"],"names":[],"mappings":";;AAYA,gBAEC;AAED,kBAEC;AAND,SAAgB,EAAE,CAAI,KAAQ;IAC5B,OAAO,EAAE,EAAE,EAAE,IAAI,EAAE,KAAK,EAAE,CAAC;AAC7B,CAAC;AAED,SAAgB,GAAG,CAAI,GAAM;IAC3B,OAAO,EAAE,EAAE,EAAE,KAAK,EAAE,GAAG,EAAE,CAAC;AAC5B,CAAC"}

node_modules/@jsonjoy.com/fs-core/lib/types.d.ts

@@ -0,0 +1,8 @@
+import type { PathLike } from '@jsonjoy.com/fs-node-utils/lib/types/misc';
+export type TFileId = PathLike | number;
+export interface StatError {
+    code: string;
+    message: string;
+    path?: string;
+    toError(): Error;
+}

node_modules/@jsonjoy.com/fs-core/lib/types.js

@@ -0,0 +1,3 @@
+"use strict";
+Object.defineProperty(exports, "__esModule", { value: true });
+//# sourceMappingURL=types.js.map

node_modules/@jsonjoy.com/fs-core/lib/types.js.map

@@ -0,0 +1 @@
+{"version":3,"file":"types.js","sourceRoot":"","sources":["../src/types.ts"],"names":[],"mappings":""}

node_modules/@jsonjoy.com/fs-core/lib/util.d.ts

@@ -0,0 +1,18 @@
+import { Buffer } from '@jsonjoy.com/fs-node-builtins/lib/internal/buffer';
+import { TDataOut, TEncodingExtended } from './encoding';
+import type * as misc from '@jsonjoy.com/fs-node-utils/lib/types/misc';
+import type { StatError } from './types';
+export declare const isWin: boolean;
+type TData = TDataOut | ArrayBufferView | DataView;
+export declare const unixify: (filepath: string, stripTrailing?: boolean) => string;
+type TResolve = (filename: string, base?: string) => string;
+declare let resolve: TResolve;
+export { resolve };
+export declare const filenameToSteps: (filename: string, base?: string) => string[];
+export declare function isFd(path: any): boolean;
+export declare function validateFd(fd: any): void;
+export declare function dataToBuffer(data: TData, encoding?: TEncodingExtended): Buffer;
+export declare function nullCheck(path: any, callback?: any): boolean;
+export declare function pathToFilename(path: misc.PathLike): string;
+export declare function createError(errorCode: string, func?: string, path?: string, path2?: string, Constructor?: ErrorConstructor): Error;
+export declare function createStatError(errorCode: string, func?: string, path?: string, path2?: string): StatError;

node_modules/@jsonjoy.com/fs-core/lib/util.js

@@ -0,0 +1,199 @@
+"use strict";
+Object.defineProperty(exports, "__esModule", { value: true });
+exports.filenameToSteps = exports.resolve = exports.unixify = exports.isWin = void 0;
+exports.isFd = isFd;
+exports.validateFd = validateFd;
+exports.dataToBuffer = dataToBuffer;
+exports.nullCheck = nullCheck;
+exports.pathToFilename = pathToFilename;
+exports.createError = createError;
+exports.createStatError = createStatError;
+const path_1 = require("@jsonjoy.com/fs-node-builtins/lib/path");
+const buffer_1 = require("@jsonjoy.com/fs-node-builtins/lib/internal/buffer");
+const errors = require("@jsonjoy.com/fs-node-builtins/lib/internal/errors");
+const process_1 = require("./process");
+const encoding_1 = require("./encoding");
+const fs_node_utils_1 = require("@jsonjoy.com/fs-node-utils");
+exports.isWin = process_1.default.platform === 'win32';
+const resolveCrossPlatform = path_1.resolve;
+const pathSep = path_1.posix ? path_1.posix.sep : path_1.sep;
+const isSeparator = (str, i) => {
+    let char = str[i];
+    return i > 0 && (char === '/' || (exports.isWin && char === '\\'));
+};
+const removeTrailingSeparator = (str) => {
+    let i = str.length - 1;
+    if (i < 2)
+        return str;
+    while (isSeparator(str, i))
+        i--;
+    return str.substr(0, i + 1);
+};
+const normalizePath = (str, stripTrailing) => {
+    if (typeof str !== 'string')
+        throw new TypeError('expected a string');
+    str = str.replace(/[\\\/]+/g, '/');
+    if (stripTrailing !== false)
+        str = removeTrailingSeparator(str);
+    return str;
+};
+const unixify = (filepath, stripTrailing = true) => {
+    if (exports.isWin) {
+        filepath = normalizePath(filepath, stripTrailing);
+        return filepath.replace(/^([a-zA-Z]+:|\.\/)/, '');
+    }
+    return filepath;
+};
+exports.unixify = unixify;
+let resolve = (filename, base = process_1.default.cwd()) => resolveCrossPlatform(base, filename);
+exports.resolve = resolve;
+if (exports.isWin) {
+    const _resolve = resolve;
+    exports.resolve = resolve = (filename, base) => (0, exports.unixify)(_resolve(filename, base));
+}
+const filenameToSteps = (filename, base) => {
+    const fullPath = resolve(filename, base);
+    const fullPathSansSlash = fullPath.substring(1);
+    if (!fullPathSansSlash)
+        return [];
+    return fullPathSansSlash.split(pathSep);
+};
+exports.filenameToSteps = filenameToSteps;
+function isFd(path) {
+    return path >>> 0 === path;
+}
+function validateFd(fd) {
+    if (!isFd(fd))
+        throw TypeError(fs_node_utils_1.ERRSTR.FD);
+}
+function dataToBuffer(data, encoding = encoding_1.ENCODING_UTF8) {
+    if (buffer_1.Buffer.isBuffer(data))
+        return data;
+    else if (data instanceof Uint8Array)
+        return (0, buffer_1.bufferFrom)(data);
+    else if (encoding === 'buffer')
+        return (0, buffer_1.bufferFrom)(String(data), 'utf8');
+    else
+        return (0, buffer_1.bufferFrom)(String(data), encoding);
+}
+function nullCheck(path, callback) {
+    if (('' + path).indexOf('\u0000') !== -1) {
+        const er = new Error('Path must be a string without null bytes');
+        er.code = 'ENOENT';
+        if (typeof callback !== 'function')
+            throw er;
+        Promise.resolve().then(() => callback(er));
+        return false;
+    }
+    return true;
+}
+function getPathFromURLPosix(url) {
+    if (url.hostname !== '') {
+        throw new errors.TypeError('ERR_INVALID_FILE_URL_HOST', process_1.default.platform);
+    }
+    const pathname = url.pathname;
+    for (let n = 0; n < pathname.length; n++) {
+        if (pathname[n] === '%') {
+            const third = pathname.codePointAt(n + 2) | 0x20;
+            if (pathname[n + 1] === '2' && third === 102) {
+                throw new errors.TypeError('ERR_INVALID_FILE_URL_PATH', 'must not include encoded / characters');
+            }
+        }
+    }
+    return decodeURIComponent(pathname);
+}
+function pathToFilename(path) {
+    if (path instanceof Uint8Array) {
+        path = (0, buffer_1.bufferFrom)(path);
+    }
+    if (typeof path !== 'string' && !buffer_1.Buffer.isBuffer(path)) {
+        try {
+            if (!(path instanceof require('url').URL))
+                throw new TypeError(fs_node_utils_1.ERRSTR.PATH_STR);
+        }
+        catch (err) {
+            throw new TypeError(fs_node_utils_1.ERRSTR.PATH_STR);
+        }
+        path = getPathFromURLPosix(path);
+    }
+    const pathString = String(path);
+    nullCheck(pathString);
+    return pathString;
+}
+const ENOENT = 'ENOENT';
+const EBADF = 'EBADF';
+const EINVAL = 'EINVAL';
+const EPERM = 'EPERM';
+const EPROTO = 'EPROTO';
+const EEXIST = 'EEXIST';
+const ENOTDIR = 'ENOTDIR';
+const EMFILE = 'EMFILE';
+const EACCES = 'EACCES';
+const EISDIR = 'EISDIR';
+const ENOTEMPTY = 'ENOTEMPTY';
+const ENOSYS = 'ENOSYS';
+const ERR_FS_EISDIR = 'ERR_FS_EISDIR';
+const ERR_OUT_OF_RANGE = 'ERR_OUT_OF_RANGE';
+function formatError(errorCode, func = '', path = '', path2 = '') {
+    let pathFormatted = '';
+    if (path)
+        pathFormatted = ` '${path}'`;
+    if (path2)
+        pathFormatted += ` -> '${path2}'`;
+    switch (errorCode) {
+        case ENOENT:
+            return `ENOENT: no such file or directory, ${func}${pathFormatted}`;
+        case EBADF:
+            return `EBADF: bad file descriptor, ${func}${pathFormatted}`;
+        case EINVAL:
+            return `EINVAL: invalid argument, ${func}${pathFormatted}`;
+        case EPERM:
+            return `EPERM: operation not permitted, ${func}${pathFormatted}`;
+        case EPROTO:
+            return `EPROTO: protocol error, ${func}${pathFormatted}`;
+        case EEXIST:
+            return `EEXIST: file already exists, ${func}${pathFormatted}`;
+        case ENOTDIR:
+            return `ENOTDIR: not a directory, ${func}${pathFormatted}`;
+        case EISDIR:
+            return `EISDIR: illegal operation on a directory, ${func}${pathFormatted}`;
+        case EACCES:
+            return `EACCES: permission denied, ${func}${pathFormatted}`;
+        case ENOTEMPTY:
+            return `ENOTEMPTY: directory not empty, ${func}${pathFormatted}`;
+        case EMFILE:
+            return `EMFILE: too many open files, ${func}${pathFormatted}`;
+        case ENOSYS:
+            return `ENOSYS: function not implemented, ${func}${pathFormatted}`;
+        case ERR_FS_EISDIR:
+            return `[ERR_FS_EISDIR]: Path is a directory: ${func} returned EISDIR (is a directory) ${path}`;
+        case ERR_OUT_OF_RANGE:
+            return `[ERR_OUT_OF_RANGE]: value out of range, ${func}${pathFormatted}`;
+        default:
+            return `${errorCode}: error occurred, ${func}${pathFormatted}`;
+    }
+}
+function createError(errorCode, func = '', path = '', path2 = '', Constructor = Error) {
+    const error = new Constructor(formatError(errorCode, func, path, path2));
+    error.code = errorCode;
+    if (path) {
+        error.path = path;
+    }
+    return error;
+}
+function createStatError(errorCode, func = '', path = '', path2 = '') {
+    return {
+        code: errorCode,
+        message: formatError(errorCode, func, path, path2),
+        path,
+        toError() {
+            const error = new Error(this.message);
+            error.code = this.code;
+            if (this.path) {
+                error.path = this.path;
+            }
+            return error;
+        },
+    };
+}
+//# sourceMappingURL=util.js.map

node_modules/@jsonjoy.com/fs-core/package.json

@@ -0,0 +1,87 @@
+{
+  "name": "@jsonjoy.com/fs-core",
+  "publishConfig": {
+    "access": "public"
+  },
+  "version": "4.56.10",
+  "description": "Core filesystem primitives: Node, Link, File, Superblock",
+  "author": {
+    "name": "streamich",
+    "url": "https://github.com/streamich"
+  },
+  "homepage": "https://github.com/streamich/memfs/tree/master/packages/fs-core",
+  "repository": "streamich/memfs",
+  "license": "Apache-2.0",
+  "funding": {
+    "type": "github",
+    "url": "https://github.com/sponsors/streamich"
+  },
+  "keywords": [
+    "node",
+    "fs",
+    "filesystem",
+    "inode",
+    "link",
+    "file",
+    "superblock",
+    "virtual",
+    "memory"
+  ],
+  "engines": {
+    "node": ">=10.0"
+  },
+  "main": "lib/index.js",
+  "types": "lib/index.d.ts",
+  "typings": "lib/index.d.ts",
+  "files": [
+    "LICENSE",
+    "lib/"
+  ],
+  "scripts": {
+    "clean": "rimraf lib typedocs coverage gh-pages yarn-error.log",
+    "build": "tsc --project tsconfig.build.json --module commonjs --target es2020 --outDir lib",
+    "jest": "node -r ts-node/register ./node_modules/.bin/jest",
+    "test": "jest --maxWorkers 7",
+    "test:ci": "yarn jest --maxWorkers 3 --no-cache",
+    "coverage": "yarn test --collectCoverage",
+    "typedoc": "typedoc",
+    "typecheck": "tsc -p ."
+  },
+  "jest": {
+    "preset": "ts-jest",
+    "testEnvironment": "node",
+    "moduleFileExtensions": [
+      "ts",
+      "js",
+      "tsx"
+    ],
+    "transform": {
+      "^.+\\.tsx?$": "ts-jest"
+    },
+    "transformIgnorePatterns": [
+      ".*/node_modules/.*"
+    ],
+    "testRegex": ".*/(__tests__|__jest__|demo)/.*\\.(test|spec)\\.tsx?$",
+    "rootDir": ".",
+    "testPathIgnorePatterns": [
+      "node_modules"
+    ]
+  },
+  "devDependencies": {
+    "@types/jest": "^29.0.0",
+    "@types/node": "^20.0.0",
+    "jest": "^29.0.0",
+    "rimraf": "^5.0.0",
+    "ts-jest": "^29.4.2",
+    "ts-node": "^10.9.2",
+    "typescript": "^5.9.2"
+  },
+  "peerDependencies": {
+    "tslib": "2"
+  },
+  "dependencies": {
+    "@jsonjoy.com/fs-node-builtins": "4.56.10",
+    "@jsonjoy.com/fs-node-utils": "4.56.10",
+    "thingies": "^2.5.0"
+  }
+}