uncached-load.js

var Module = require("module")

function requireUncached(file, baseDir) {
    // Hack: hijack Node's internal resolution algorithm to require the file
    // as if from a fake module in the correct base directory. It also will
    // avoid several bugs with the `resolve` module (Node's is necessarily
    // more stable).
    var dirname = path.resolve(baseDir)
    var m = new Module(path.join(dirname, "dummy.js"))

    m.filename = m.id
    m.paths = Module._nodeModulePaths(dirname)
    m.loaded = true

    // eslint-disable-next-line global-require
    var exports = m.require(file)

    // Remove the module and its children from the cache and dereference all
    // `require`d children from their parent. This implies all scripts
    // loaded are not cached, which helps cut down on persistent memory
    // usage some (especially when loading tests).
    delete Module._cache[m.filename]
    for (var i = 0; i < m.children.length; i++) {
        delete Module._cache[m.children[i].filename]
    }
    m.children.length = 0
    return exports
}