Function keep

test/tools/clean.js:111–116

* Given a reverse chronological array of paths * This deletes all files except for n of them * * n is the (1 indexed) count of files to keep.

(basePath, paths, n)

 * n is the (1 indexed) count of files to keep.
 */
function keep (basePath, paths, n) {

  for (let i = paths.length; i > n; i--) {
    fs.removeSync(path.resolve(basePath, paths[i - 1]));
  }
}

function cleanPath (tmpPath) {
  fs.removeSync(tmpPath);