85 lines
2.3 KiB
JavaScript
85 lines
2.3 KiB
JavaScript
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import * as path from 'path' // if module is locally defined we path.resolve it
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import callsite from 'callsite'
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import Module from 'module'
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function find(moduleName) {
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if (moduleName[0] === '.') {
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var stack = callsite()
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for (var i in stack) {
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var filename = stack[i].getFileName()
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// if (filename !== module.filename) {
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moduleName = path.resolve(path.dirname(filename), moduleName)
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break
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// }
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}
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}
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try {
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return __non_webpack_require__.resolve(moduleName)
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} catch (e) {
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return
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}
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}
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/**
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* Removes a module from the cache. We need this to re-load our http_request !
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* see: http://stackoverflow.com/a/14801711/1148249
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*/
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function decache(moduleName) {
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moduleName = find(moduleName)
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if (!moduleName) {
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return
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}
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// Run over the cache looking for the files
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// loaded by the specified module name
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searchCache(moduleName, function(mod) {
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delete __non_webpack_require__.cache[mod.id]
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})
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// Remove cached paths to the module.
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// Thanks to @bentael for pointing this out.
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Object.keys(Module.prototype.constructor._pathCache).forEach(function(
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cacheKey
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) {
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if (cacheKey.indexOf(moduleName) > -1) {
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delete Module.prototype.constructor._pathCache[cacheKey]
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}
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})
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}
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/**
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* Runs over the cache to search for all the cached
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* files
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*/
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function searchCache(moduleName, callback) {
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// Resolve the module identified by the specified name
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var mod = __non_webpack_require__.resolve(moduleName)
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var visited = {}
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// Check if the module has been resolved and found within
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// the cache no else so #ignore else http://git.io/vtgMI
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/* istanbul ignore else */
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if (mod && (mod = __non_webpack_require__.cache[mod]) !== undefined) {
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// Recursively go over the results
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;(function run(current) {
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visited[current.id] = true
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// Go over each of the module's children and
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// run over it
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current.children.forEach(function(child) {
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// ignore .node files, decachine native modules throws a
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// "module did not self-register" error on second require
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if (path.extname(child.filename) !== '.node' && !visited[child.id]) {
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run(child)
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}
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})
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// Call the specified callback providing the
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// found module
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callback(current)
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})(mod)
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}
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}
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export default decache
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