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Edit File: extractWebpackError.js

'use strict';

const ErrorStackParser = require('error-stack-parser');
const RequestShortener = require("webpack/lib/RequestShortener");

// TODO: allow the location to be customized in options
const requestShortener = new RequestShortener(process.cwd());

/*
 This logic is mostly duplicated from webpack/lib/Stats.js#toJson()
 See: https://github.com/webpack/webpack/blob/2f618e733aab4755deb42e9d8e859609005607c0/lib/Stats.js#L89
*/

function extractError (e) {
  return {
    message: e.message,
    file: getFile(e),
    origin: getOrigin(e),
    name: e.name,
    severity: 0,
    webpackError: e,
    originalStack: getOriginalErrorStack(e)
  };
}

function getOriginalErrorStack(e) {
  while (e.error != null) {
    e = e.error;
  }
  if (e.stack) {
    return ErrorStackParser.parse(e);
  }
  return [];
}

function getFile (e) {
  if (e.file) {
    return e.file;
  } else if (e.module && e.module.readableIdentifier && typeof e.module.readableIdentifier === "function") {
    return e.module.readableIdentifier(requestShortener);
  }
}

module.exports = extractError;

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