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109 lines
3.1 KiB
109 lines
3.1 KiB
const Module = require('module')
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const path = require('path')
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const semver = require('semver')
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// https://github.com/benmosher/eslint-plugin-import/pull/1591
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// https://github.com/benmosher/eslint-plugin-import/pull/1602
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// Polyfill Node's `Module.createRequireFromPath` if not present (added in Node v10.12.0)
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// Use `Module.createRequire` if available (added in Node v12.2.0)
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// eslint-disable-next-line node/no-deprecated-api
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const createRequire = Module.createRequire || Module.createRequireFromPath || function (filename) {
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const mod = new Module(filename, null)
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mod.filename = filename
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mod.paths = Module._nodeModulePaths(path.dirname(filename))
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mod._compile(`module.exports = require;`, filename)
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return mod.exports
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}
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function resolveFallback (request, options) {
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const isMain = false
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const fakeParent = new Module('', null)
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const paths = []
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for (let i = 0; i < options.paths.length; i++) {
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const p = options.paths[i]
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fakeParent.paths = Module._nodeModulePaths(p)
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const lookupPaths = Module._resolveLookupPaths(request, fakeParent, true)
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if (!paths.includes(p)) paths.push(p)
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for (let j = 0; j < lookupPaths.length; j++) {
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if (!paths.includes(lookupPaths[j])) paths.push(lookupPaths[j])
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}
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}
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const filename = Module._findPath(request, paths, isMain)
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if (!filename) {
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const err = new Error(`Cannot find module '${request}'`)
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err.code = 'MODULE_NOT_FOUND'
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throw err
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}
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return filename
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}
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const resolve = semver.satisfies(process.version, '>=10.0.0')
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? require.resolve
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: resolveFallback
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exports.resolveModule = function (request, context) {
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// createRequire doesn't work with jest mock modules
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// (which we used in migrator for inquirer, and in tests for cli-service)
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// TODO: it's supported in Jest 25
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if (process.env.VUE_CLI_TEST && (request.endsWith('migrator') || context === '/')) {
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return request
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}
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let resolvedPath
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try {
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try {
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resolvedPath = createRequire(path.resolve(context, 'package.json')).resolve(request)
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} catch (e) {
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resolvedPath = resolve(request, { paths: [context] })
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}
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} catch (e) {}
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return resolvedPath
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}
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exports.loadModule = function (request, context, force = false) {
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// createRequire doesn't work with jest mocked fs
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// (which we used in tests for cli-service)
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if (process.env.VUE_CLI_TEST && context === '/') {
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return require(request)
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}
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try {
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return createRequire(path.resolve(context, 'package.json'))(request)
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} catch (e) {
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const resolvedPath = exports.resolveModule(request, context)
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if (resolvedPath) {
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if (force) {
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clearRequireCache(resolvedPath)
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}
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return require(resolvedPath)
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}
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}
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}
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exports.clearModule = function (request, context) {
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const resolvedPath = exports.resolveModule(request, context)
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if (resolvedPath) {
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clearRequireCache(resolvedPath)
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}
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}
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function clearRequireCache (id, map = new Map()) {
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const module = require.cache[id]
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if (module) {
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map.set(id, true)
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// Clear children modules
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module.children.forEach(child => {
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if (!map.get(child.id)) clearRequireCache(child.id, map)
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})
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delete require.cache[id]
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}
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}
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