askirmas / postcss-d-ts

import schema = require("./schema.json")

import {

  readFileSync,

  unlink,

  exists,

  open,

  writeFile,

  close,

  mkdir,

  rename

} from "fs"

import { tmpdir } from "os"

import { join } from "path"

import { promisify } from "util"

import { randomString } from "./utils"

const $exists = promisify(exists)

, _unlink = promisify(unlink)

, $open = promisify(open)

, $write = promisify(writeFile)

, $close = promisify(close)

, $mkdir = promisify(mkdir)

, $rename = promisify(rename)

, tempDir = join(tmpdir(), schema.title)

export {

  readlineSync,

  $exists,

  $unlink,

  $open,

  $write,

  $close,

  $rename,

  tempFileName,

  tempDir

}

//TODO replace with common

function readlineSync(path: string, splitter: string) {

  return readFileSync(path).toString().split(splitter)

}

function $unlink(source: Parameters<typeof _unlink>[0]) {

  return $exists(source)

  .then(ex => ex ? _unlink(source) : void 0)

}

async function tempFileName() {

  await $exists(tempDir) || await $mkdir(tempDir)

  return join(tempDir, randomString())

}