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import slash from 'https://esm.sh/slash@5.0.0'import { ensureDir } from 'https://deno.land/std@v0.172.0/fs/mod.ts'import { resolve } from 'https://deno.land/std@v0.172.0/path/mod.ts'
export const encode = (str: string) => new TextEncoder().encode(str)
export const decode = (buf: BufferSource) => new TextDecoder().decode(buf)
export const hash = async (str: string, alg: AlgorithmIdentifier = 'SHA-256') => await crypto.subtle.digest(alg, encode(str))
export async function* files(dir: string): AsyncIterableIterator<string> {  const dirents = Deno.readDir(dir)    for await (const dirent of dirents) {    const res = resolve(dir, dirent.name)
    if (dirent.isDirectory)      yield* files(res)    else      yield res  }}
export const copyDir = async (from: string, to: string) => {  for await (const file of files(from)) {    if (file.includes('.git'))      continue
    const filePath = file.replace(from, to)    , dirPathArray = slash(file.replace(from, to)).split('/')
    dirPathArray.pop()
    const dirPath = dirPathArray.join('/')
    await ensureDir(dirPath)
    await Deno.copyFile(file, filePath)  }}