38 lines
1.2 KiB
TypeScript
38 lines
1.2 KiB
TypeScript
import fs from 'fs'
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import { join } from 'path'
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import { promisify } from 'util'
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const readdir = promisify(fs.readdir)
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const stat = promisify(fs.stat)
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/**
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* Recursively read directory
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* @param {string} dir Directory to read
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* @param {RegExp} filter Filter for the file name, only the name part is considered, not the full path
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* @param {string[]=[]} arr This doesn't have to be provided, it's used for the recursion
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* @param {string=dir`} rootDir Used to replace the initial path, only the relative path is left, it's faster than path.relative.
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* @returns Promise array holding all relative paths
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*/
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export async function recursiveReadDir(dir: string, filter: RegExp, ignore?: RegExp, arr: string[] = [], rootDir: string = dir): Promise<string[]> {
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const result = await readdir(dir)
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await Promise.all(result.map(async (part: string) => {
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const absolutePath = join(dir, part)
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if (ignore && ignore.test(part)) return
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const pathStat = await stat(absolutePath)
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if (pathStat.isDirectory()) {
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await recursiveReadDir(absolutePath, filter, ignore, arr, rootDir)
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return
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}
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if (!filter.test(part)) {
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return
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}
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arr.push(absolutePath.replace(rootDir, ''))
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}))
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return arr
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}
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