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| 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52 53 54 55 56 57 58 59 60 61 62 63 64 65 66 67 68 69 70 71 72 73 74 75 76 77 78 79 80 81 82 | 1x 1x 1x 1x 4x 1x 1x 1x 1x 3x 1x 10x 10x 10x 10x 10x 10x 10x 10x 5x 5x 1x 4x 4x 4x 1x 4x | import * as fs from 'fs'
import * as mage from 'mage'
import * as path from 'path'
import { crash } from './errors'
/**
* Throw only if the error is not "file/folder not found"
*/
function throwIfNotFileNotFoundError(error: NodeJS.ErrnoException) {
if (error.code !== 'ENOENT') {
throw error
}
}
/**
* Load topics from each module's 'topics' folder
*
* This function is a helper you will use in your project's
* `lib/archivist/index.js` file, as follow:
*
* ```typescript
* import { loadTopicsFromModules } from 'mage-validator'
*
* loadTopicsFromModules(exports)
* ```
*
* This will:
*
* - Find all your projetc's modules
* - For each module folders, check if there is a `topics` folder
* - When a `topics` folder is found, require each file in it
* - Add the content of the require to exports[fileNameWithoutJSExtension]
*/
export function loadTopicsFromModules(exports: any) {
const modules = mage.listModules()
for (const moduleName of modules) {
loadTopicsFromModule(exports, moduleName)
}
}
/**
* Load topics defined in a single module
*/
export function loadTopicsFromModule(archivistExports: any, moduleName: string) {
const modulePath = mage.getModulePath(moduleName)
const moduleTopicsPath = path.join(modulePath, 'topics')
try {
fs.readdirSync(moduleTopicsPath).forEach(function (topicFileName) {
const topicPath = path.join(moduleTopicsPath, topicFileName)
const topicPathInfo = path.parse(topicPath)
const topicName = topicPathInfo.name
// Skip all files but TypeScript source files
if (topicPathInfo.ext !== '.ts') {
return
}
if (archivistExports[topicName]) {
throw crash('Topic is already defined!', {
alreadySetByModule: archivistExports[topicName]._module,
module: moduleName,
topic: topicName,
})
}
// Add topic to the export of lib/archivist/index.ts
const topic = archivistExports[topicName] = require(topicPath).default
topic._module = moduleName
// No explicit class name defined; we assign the name of the file as
// the class name used internally within the topic's methods
if (topic.getClassName().substring(0, 8) === 'default_') {
topic.setClassName(topicName)
}
})
} catch (error) {
throwIfNotFileNotFoundError(error)
}
}
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