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- const path = require('path')
- exports.resolveModuleRoot = function (filePath, id = null) {
- {
- const index = filePath.lastIndexOf(path.sep + 'index.js')
- if (index !== -1) {
- filePath = filePath.substr(0, index)
- }
- }
- if (id) {
- id = id.replace(/\//g, path.sep)
-
- let search = `node_modules/${id}`
- let index = filePath.lastIndexOf(search)
- if (index === -1) {
-
- search = id
- index = filePath.lastIndexOf(search)
- }
- if (index === -1) {
-
- index = id.lastIndexOf('/')
- if (index !== -1) {
- search = id.substr(index + 1)
- index = filePath.lastIndexOf(search)
- }
- }
- if (index !== -1) {
- filePath = filePath.substr(0, index + search.length)
- }
- }
- return filePath
- }
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