vfile-reporter

What is vfile-reporter?

The vfile-reporter package is used to format and report messages from vfile objects, which are used to represent files with associated metadata and messages. It is particularly useful in the context of processing files with tools like unified, remark, and rehype.

What are vfile-reporter's main functionalities?

Basic Reporting

This feature allows you to generate a basic report from a vfile object. The report includes messages such as warnings or errors associated with the file.

const vfile = require('vfile');
const vfileReporter = require('vfile-reporter');

const file = vfile({path: 'example.md', contents: 'Hello, world!'});
file.message('Warning: something is not right', {line: 1, column: 1});

console.log(vfileReporter([file]));

Custom Reporters

This feature allows you to create custom reporters to format the messages in a way that suits your needs. The example shows a custom reporter that formats messages with file path, line, and column information.

const vfile = require('vfile');
const vfileReporter = require('vfile-reporter');

const file = vfile({path: 'example.md', contents: 'Hello, world!'});
file.message('Warning: something is not right', {line: 1, column: 1});

const customReporter = (files) => {
  return files.map(file => file.messages.map(msg => `${file.path}:${msg.line}:${msg.column} - ${msg.reason}`).join('\n')).join('\n');
};

console.log(customReporter([file]));

Other packages similar to vfile-reporter

eslint

ESLint is a tool for identifying and reporting on patterns found in ECMAScript/JavaScript code. It is highly configurable and can be extended with custom rules and plugins. Unlike vfile-reporter, which is more general-purpose and can be used with any type of file, ESLint is specifically designed for JavaScript and TypeScript code.

stylelint

Stylelint is a linter that helps you avoid errors and enforce conventions in your styles. It is specifically designed for CSS and other style languages. Similar to vfile-reporter, it provides detailed reports of issues found in the files it processes, but it is specialized for style sheets.

markdownlint

Markdownlint is a linter for Markdown files. It helps enforce standards and catch common mistakes in Markdown documents. While vfile-reporter can be used with Markdown files as part of a larger toolchain, markdownlint is specifically focused on Markdown and provides a set of rules tailored to that format.

README

vfile-reporter

Format VFiles using a stylish reporter.

Originally forked from ESLint’s stylish reporter, but with some coolness added.

Features

• Ranges — Not just a starting position, such as 3:2, but 3:2-3:6.

• Stack-traces — When something awful happens, you want to know where it occurred, stack-traces help answer that question.

• Successful files (configurable) — Sometimes you want to know if things went okay.

• And all of VFiles awesomeness.

Installation

npm:

npm install vfile-report

Usage

var toVFile = require('to-vfile');
var reporter = require('vfile-reporter');

var one = toVFile('test/fixture/1.js');
var two = toVFile('test/fixture/2.js');

/*
 * See VFile’s docs for more info on how to warn.
 */

one.warn('Warning!', {
    'line': 2,
    'column': 4
});

console.log(reporter([one, two]));

Yields:

test/fixture/1.js
        2:4  warning  Warning!

test/fixture/2.js: no issues found

⚠ 1 warning

API

reporter(vfiles[, options])

Generate a stylish report from the given files.

Signatures

• report = reporter(file[, options])
• report = reporter(files[, options])

Parameters

• options (Object, optional)

  • quiet (boolean, default: false) — Do not output anything for a file which has no warnings or errors. The default behaviour is to show a success message.

  • silent (boolean, default: false) — Do not output messages without fatal set to true. Also sets quiet to true.

Returns: string, a stylish report.

License

MIT © Titus Wormer

Forked from ESLint’s stylish reporter (originally created by Sindre Sorhus), which is Copyright (c) 2013 Nicholas C. Zakas, and licensed under MIT.