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@stackline/to-vfile

vfile utility to create a vfile from a filepath.

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Current package version: 1.0.2

Why this package?

@stackline/to-vfile is the Stackline-maintained distribution of to-vfile@7.2.4. It is an independent continuation of to-vfile; original authors and licenses remain credited below.

Compatibility

Item Value
Package @stackline/to-vfile@1.0.2
API target to-vfile@7.2.4
Supported Node.js See supported framework requirements
License MIT
Module type module
Main entry index.js
Types index.d.ts
Runtime dependencies vfile, is-buffer

Installation

npm install @stackline/to-vfile

Preserve existing imports and plugin resolution with an npm alias:

npm install to-vfile@npm:@stackline/to-vfile

Usage and API reference

to-vfile

vfile utility to read and write to the file system.

Contents

What is this?

This utility places file paths and the file system first. Where vfile itself focusses on file values (the file contents), this instead focuses on the file system, which is a common case when working with files.

When should I use this?

Use this if you know there’s a file system and want to use it. Use vfile if there might not be a file system.

Install

This package is ESM only. In Node.js (version 14.14+ and 16.0+), install with npm:

npm install @stackline/to-vfile

In Deno with esm.sh:

import {toVFile, read, readSync, write, writeSync} from 'https://esm.sh/to-vfile@7'

In browsers with esm.sh:

<script type="module">
  import {toVFile, read, readSync, write, writeSync} from 'https://esm.sh/to-vfile@7?bundle'
</script>

Use

import {toVFile, read} from '@stackline/to-vfile'

console.log(toVFile('readme.md'))
console.log(toVFile(new URL('readme.md', import.meta.url)))
console.log(await read('.git/HEAD'))
console.log(await read('.git/HEAD', 'utf8'))

Yields:

VFile {
  data: {},
  messages: [],
  history: [ 'readme.md' ],
  cwd: '/Users/tilde/Projects/oss/to-vfile'
}
VFile {
  data: {},
  messages: [],
  history: [ '/Users/tilde/Projects/oss/to-vfile/readme.md' ],
  cwd: '/Users/tilde/Projects/oss/to-vfile'
}
VFile {
  data: {},
  messages: [],
  history: [ '.git/HEAD' ],
  cwd: '/Users/tilde/Projects/oss/to-vfile',
  value: <Buffer 72 65 66 3a 20 72 65 66 73 2f 68 65 61 64 73 2f 6d 61 69 6e 0a>
}
VFile {
  data: {},
  messages: [],
  history: [ '.git/HEAD' ],
  cwd: '/Users/tilde/Projects/oss/to-vfile',
  value: 'ref: refs/heads/main\n'
}

API

This package exports the identifiers read, readSync, toVFile, write, and writeSync. There is no default export.

toVFile(description)

Create a virtual file from a description.

This is like VFile, but it accepts a file path instead of file cotnents.

If options is a string, URL, or buffer, it’s used as the path. Otherwise, if it’s a file, that’s returned instead. Otherwise, the options are passed through to new VFile().

Parameters
Returns

Given file or new file (VFile).

read(description[, options][, callback])

Create a virtual file and read it in, async.

Signatures
Parameters
Returns

Nothing when a callback is given, otherwise promise that resolves to given file or new file (VFile).

readSync(description[, options])

Create a virtual file and read it in, synchronously.

Parameters
Returns

Given file or new file (VFile).

write(description[, options][, callback])

Create a virtual file and write it, async.

Signatures
Parameters
Returns

Nothing when a callback is given, otherwise promise that resolves to given file or new file (VFile).

writeSync(description[, options])

Create a virtual file and write it, synchronously.

Parameters
Returns

Given file or new file (VFile).

BufferEncoding

Encodings supported by the buffer class (TypeScript type).

This is a copy of the types from Node and VFile.

Type
type BufferEncoding =
  | 'ascii'
  | 'utf8'
  | 'utf-8'
  | 'utf16le'
  | 'ucs2'
  | 'ucs-2'
  | 'base64'
  | 'base64url'
  | 'latin1'
  | 'binary'
  | 'hex'

Callback

Callback called after reading or writing a file (TypeScript type).

Parameters
Returns

Nothing (void).

Compatible

URL to file, path to file, options for file, or actual file (TypeScript type).

Type
type Compatible = Buffer | URL | VFileOptions | VFile | string

See VFileOptions and VFile.

ReadOptions

Configuration for fs.readFile (TypeScript type).

Fields

WriteOptions

Configuration for fs.writeFile (TypeScript type).

Fields

Types

This package is fully typed with TypeScript. It exports the additional types BufferEncoding, Callback, Compatible, ReadOptions, and WriteOptions.

Compatibility

Projects maintained by the unified collective are compatible with all maintained versions of Node.js. As of now, that is Node.js 14.14+ and 16.0+. Our projects sometimes work with older versions, but this is not guaranteed.

Contribute

See contributing.md in vfile/.github for ways to get started. See support.md for ways to get help.

This project has a code of conduct. By interacting with this repository, organization, or community you agree to abide by its terms.

License

MIT © Titus Wormer

Credits and original authors

Original copyright, license notices and contributor acknowledgements remain part of this distribution. Stackline maintenance does not replace authorship of the original work.

Community and Links

Use this repository's issue tracker for reproducible bugs and feature requests. Join r/Stackline for examples, usage questions and release discussions.