73 lines
1.8 KiB
JavaScript
73 lines
1.8 KiB
JavaScript
|
const semver = require('semver')
|
||
|
|
|
||
|
|
function resolveFallback (request, options) {
|
||
|
|
const Module = require('module')
|
||
|
|
const isMain = false
|
||
|
|
const fakeParent = new Module('', null)
|
||
|
|
|
||
|
|
const paths = []
|
||
|
|
|
||
|
|
for (let i = 0; i < options.paths.length; i++) {
|
||
|
|
const path = options.paths[i]
|
||
|
|
fakeParent.paths = Module._nodeModulePaths(path)
|
||
|
|
const lookupPaths = Module._resolveLookupPaths(request, fakeParent, true)
|
||
|
|
|
||
|
|
if (!paths.includes(path)) paths.push(path)
|
||
|
|
|
||
|
|
for (let j = 0; j < lookupPaths.length; j++) {
|
||
|
|
if (!paths.includes(lookupPaths[j])) paths.push(lookupPaths[j])
|
||
|
|
}
|
||
|
|
}
|
||
|
|
|
||
|
|
const filename = Module._findPath(request, paths, isMain)
|
||
|
|
if (!filename) {
|
||
|
|
const err = new Error(`Cannot find module '${request}'`)
|
||
|
|
err.code = 'MODULE_NOT_FOUND'
|
||
|
|
throw err
|
||
|
|
}
|
||
|
|
return filename
|
||
|
|
}
|
||
|
|
|
||
|
|
const resolve = semver.satisfies(process.version, '>=10.0.0')
|
||
|
|
? require.resolve
|
||
|
|
: resolveFallback
|
||
|
|
|
||
|
|
exports.resolveModule = function (request, context) {
|
||
|
|
let resolvedPath
|
||
|
|
try {
|
||
|
|
resolvedPath = resolve(request, {
|
||
|
|
paths: [context]
|
||
|
|
})
|
||
|
|
} catch (e) {}
|
||
|
|
return resolvedPath
|
||
|
|
}
|
||
|
|
|
||
|
|
exports.loadModule = function (request, context, force = false) {
|
||
|
|
const resolvedPath = exports.resolveModule(request, context)
|
||
|
|
if (resolvedPath) {
|
||
|
|
if (force) {
|
||
|
|
clearRequireCache(resolvedPath)
|
||
|
|
}
|
||
|
|
return require(resolvedPath)
|
||
|
|
}
|
||
|
|
}
|
||
|
|
|
||
|
|
exports.clearModule = function (request, context) {
|
||
|
|
const resolvedPath = exports.resolveModule(request, context)
|
||
|
|
if (resolvedPath) {
|
||
|
|
clearRequireCache(resolvedPath)
|
||
|
|
}
|
||
|
|
}
|
||
|
|
|
||
|
|
function clearRequireCache (id, map = new Map()) {
|
||
|
|
const module = require.cache[id]
|
||
|
|
if (module) {
|
||
|
|
map.set(id, true)
|
||
|
|
// Clear children modules
|
||
|
|
module.children.forEach(child => {
|
||
|
|
if (!map.get(child.id)) clearRequireCache(child.id, map)
|
||
|
|
})
|
||
|
|
delete require.cache[id]
|
||
|
|
}
|
||
|
|
}
|