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clean-stacktrace-metadata

1.0.6 • Public • Published

clean-stacktrace-metadata NPM version mit license NPM monthly downloads npm total downloads

Plugin for clean-stacktrace lib. Parse each line to get additional info like filename, column and line of the error.

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Table of Contents

Install

Install with npm

$ npm install clean-stacktrace-metadata --save

or install using yarn

$ yarn add clean-stacktrace-metadata

Usage

For more use-cases see the tests

const cleanStacktraceMetadata = require('clean-stacktrace-metadata')

API

cleanStacktraceMetadata

Parses each line in stack and pass info object to the given plugin function. That plugin function is passed with (line, info, index) signature, where line is string representing the stacktrace line, and info is an object with .line, .column and .filename properties. That's useful, you can attach them to some error object.

Meant to be used inside mapper of the clean-stacktrace, another useful mapper is clean-stacktrace-relative-paths to show relative paths inside stacktrace, instead of absolute paths.

Params

  • plugin {Function}: A function passed with (line, info, index) signature.
  • returns {Function} mapper: Function that can be passed to clean-stacktrace

Example

const metadata = require('clean-stacktrace-metadata')
const cleanStack = require('clean-stacktrace')
 
const err = new Error('Missing unicorn')
console.log(error.stack)
// =>
// Error: Missing unicorn
//     at quxie (/home/charlike/apps/alwa.js:8:10)
//     at module.exports (/home/charlike/apps/foo.js:6:3)
//     at Object.<anonymous> (/home/charlike/apps/dush.js:45:3)
//     at Module._compile (module.js:409:26)
//     at Object.Module._extensions..js (module.js:416:10)
//     at Module.load (module.js:343:32)
//     at Function.Module._load (module.js:300:12)
//     at Function.Module.runMain (module.js:441:10)
//     at startup (node.js:139:18)
 
const mapper = metadata((line, info, index) => {
  if (index === 1) {
    err.line = info.line
    err.column = info.column
    err.filename = info.filename
    err.place = info.place
  }
 
  return line
})
 
const stack = cleanStack(error.stack, mapper)
console.log(stack)
// =>
// Error: Missing unicorn
//     at quxie (/home/charlike/apps/alwa.js:8:10)
//     at module.exports (/home/charlike/apps/foo.js:6:3)
//     at Object.<anonymous> (/home/charlike/apps/dush.js:45:3)
 
console.log(err.place) // => 'quxie'
console.log(err.line) // => 8
console.log(err.column) // => 10
console.log(err.filename) // => '/home/charlike/apps/alwa.js'

Related

Contributing

Pull requests and stars are always welcome. For bugs and feature requests, please create an issue.
Please read the contributing guidelines for advice on opening issues, pull requests, and coding standards.
If you need some help and can spent some cash, feel free to contact me at CodeMentor.io too.

In short: If you want to contribute to that project, please follow these things

  1. Please DO NOT edit README.md, CHANGELOG.md and .verb.md files. See "Building docs" section.
  2. Ensure anything is okey by installing the dependencies and run the tests. See "Running tests" section.
  3. Always use npm run commit to commit changes instead of git commit, because it is interactive and user-friendly. It uses commitizen behind the scenes, which follows Conventional Changelog idealogy.
  4. Do NOT bump the version in package.json. For that we use npm run release, which is standard-version and follows Conventional Changelog idealogy.

Thanks a lot! :)

Building docs

Documentation and that readme is generated using verb-generate-readme, which is a verb generator, so you need to install both of them and then run verb command like that

$ npm install verbose/verb#dev verb-generate-readme --global && verb

Please don't edit the README directly. Any changes to the readme must be made in .verb.md.

Running tests

Clone repository and run the following in that cloned directory

$ npm install && npm test

Author

Charlike Mike Reagent

License

Copyright © 2017, Charlike Mike Reagent. Released under the MIT License.


This file was generated by verb-generate-readme, v0.4.3, on March 13, 2017.
Project scaffolded using charlike cli.

install

npm i clean-stacktrace-metadata

Downloadsweekly downloads

166

version

1.0.6

license

MIT

homepage

github.com

repository

Gitgithub

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