123456789101112131415161718192021222324252627282930313233343536373839404142434445464748495051525354555657585960616263646566676869707172737475767778798081828384858687888990919293949596979899100101102103104105106107108109110111112113114115116117118119120121122123124125126127
import {  makeTempDirSync,  writeFileSync,  removeSync,  symlinkSync,  mkdirSync,  removeAllSync,  run,  DenoError,  ErrorKind} from "deno";import * as path from "https://deno.land/x/fs/path.ts"; // fix later
export function genName(pre = "", post = ""): string {  return pre + Math.floor(Math.random() * 100000) + post;}
export async function inTmpDir(  f: (dir: string) => Promise<void> | void,  keepOnFailure = false) {  await inTmpDirs(    1,    async tmpDirs => {      await f(tmpDirs[0]);    },    keepOnFailure  );}export async function inTmpDirs(  count: number,  f: (dirs: string[]) => Promise<void> | void,  keepOnFailure = false) {  const tmpDirs = [];  for (let i = 0; i < count; i++) {    tmpDirs.push(makeTempDirSync());  }  function cleanup() {    tmpDirs.forEach(d => {      try {        removeAllSync(d);      } catch (e) {        if (e instanceof DenoError && e.kind === ErrorKind.NotFound) {          // not a problem        } else {          console.error("WARN:", e.message);        }      }    });  }  try {    await f(tmpDirs);    cleanup();  } catch (e) {    if (!keepOnFailure) {      cleanup();    }    throw e;  }}class F {  constructor(public path: string, public isDir: boolean) {}  modify() {    writeFileSync(this.path, new Uint8Array(0));  }  remove() {    if (this.isDir) {      removeAllSync(this.path);    } else {      removeSync(this.path);    }  }}interface Options {  prefix?: string;  postfix?: string;  amount?: number;  isDir?: boolean;}const defaultOptions = {  prefix: "",  postfix: "",  amount: 1,  isDir: false};export function genFiles(dir: string, options: Options = {}): F[] {  const amount = Math.max(options.amount, 1);  options = { ...defaultOptions, ...options };  const files = [];  for (let i = 0; i < amount; i++) {    const filePath = path.join(dir, genName(options.prefix, options.postfix));    if (options.isDir) {      mkdirSync(filePath);    } else {      writeFileSync(filePath, new Uint8Array(0));    }    files.push(new F(filePath, options.isDir));  }  return files;}export function genFile(dir: string, options: Options = {}): F {  return genFiles(dir, { ...options, amount: 1 })[0];}export function genDirs(dir: string, options: Options = {}): F[] {  return genFiles(dir, { ...options, isDir: true });}export function genDir(dir: string, options: Options = {}): F {  return genDirs(dir, { ...options, isDir: true, amount: 1 })[0];}export function genLink(  dir: string,  pathToFile: string,  options: Options = {}): F {  const linkPath = path.join(dir, genName(options.prefix, options.postfix));  symlinkSync(pathToFile, linkPath);  return new F(linkPath, options.isDir);}export async function tree(...args: string[]): Promise<void> {  const process = run({    args: ["tree", ...args],    stdout: "inherit"  });  await process.status();}