/* @flow */
"use strict"

const configurationError = require("./configurationError")
const resolveFrom = require("resolve-from")

module.exports = function (basedir/*: string*/, lookup/*: string*/)/*: string*/ {
  // First try to resolve from the provided directory,
  // then try to resolve from process.cwd.
  let path = resolveFrom(basedir, lookup)
  if (!path) {
    path = resolveFrom(process.cwd(), lookup)
  }
  if (!path) {
    throw configurationError(`Could not find "${lookup}". Do you need a \`configBasedir\`?`)
  }
  return path
}