npm-check-unused/lib/in/read-package-json.js

Check unused dependencies.

'use strict'

const merge = require('merge-options')

function readPackageJson (filename) {
  let pkg
  let error
  try {
    pkg = require(filename)
  } catch (e) {
    if (e.code === 'MODULE_NOT_FOUND') {
      error = new Error(`A package.json was not found at ${filename}`)
    } else {
      error = new Error(`A package.json was found at ${filename}, but it is not valid.`)
    }
  }
  return merge(pkg, {devDependencies: {}, dependencies: {}, error: error})
}

module.exports = readPackageJson