| 1 | const fs = require('fs')
|
| 2 | const path = require('path')
|
| 3 |
|
| 4 | const cache = {}
|
| 5 |
|
| 6 | module.exports = function(packageName) {
|
| 7 | if (packageName in cache) {
|
| 8 | return cache[packageName]
|
| 9 | }
|
| 10 |
|
| 11 | try {
|
| 12 | const packageJson = JSON.parse(
|
| 13 | fs.readFileSync(path.resolve('node_modules', packageName, 'package.json'))
|
| 14 | )
|
| 15 | cache[packageName] = packageJson.version
|
| 16 | return packageJson.version
|
| 17 | } catch (error) {
|
| 18 | cache[packageName] = null
|
| 19 | return null
|
| 20 | }
|
| 21 | }
|