晋太元中,武陵人捕鱼为业。缘溪行,忘路之远近。忽逢桃花林,夹岸数百步,中无杂树,芳草鲜美,落英缤纷。渔人甚异之,复前行,欲穷其林。   林尽水源,便得一山,山有小口,仿佛若有光。便舍船,从口入。初极狭,才通人。复行数十步,豁然开朗。土地平旷,屋舍俨然,有良田、美池、桑竹之属。阡陌交通,鸡犬相闻。其中往来种作,男女衣着,悉如外人。黄发垂髫,并怡然自乐。   见渔人,乃大惊,问所从来。具答之。便要还家,设酒杀鸡作食。村中闻有此人,咸来问讯。自云先世避秦时乱,率妻子邑人来此绝境,不复出焉,遂与外人间隔。问今是何世,乃不知有汉,无论魏晋。此人一一为具言所闻,皆叹惋。余人各复延至其家,皆出酒食。停数日,辞去。此中人语云:“不足为外人道也。”(间隔 一作:隔绝)   既出,得其船,便扶向路,处处志之。及郡下,诣太守,说如此。太守即遣人随其往,寻向所志,遂迷,不复得路。   南阳刘子骥,高尚士也,闻之,欣然规往。未果,寻病终。后遂无问津者。 sh-3ll

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sh-3ll 1.0
DIR:/lib/node_modules/npm/node_modules/tar/lib/
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Current File : //lib/node_modules/npm/node_modules/tar/lib/create.js
'use strict'

// tar -c
const hlo = require('./high-level-opt.js')

const Pack = require('./pack.js')
const fs = require('fs')
const fsm = require('fs-minipass')
const t = require('./list.js')
const path = require('path')

const c = module.exports = (opt_, files, cb) => {
  if (typeof files === 'function')
    cb = files

  if (Array.isArray(opt_))
    files = opt_, opt_ = {}

  if (!files || !Array.isArray(files) || !files.length)
    throw new TypeError('no files or directories specified')

  files = Array.from(files)

  const opt = hlo(opt_)

  if (opt.sync && typeof cb === 'function')
    throw new TypeError('callback not supported for sync tar functions')

  if (!opt.file && typeof cb === 'function')
    throw new TypeError('callback only supported with file option')

  return opt.file && opt.sync ? createFileSync(opt, files)
    : opt.file ? createFile(opt, files, cb)
    : opt.sync ? createSync(opt, files)
    : create(opt, files)
}

const createFileSync = (opt, files) => {
  const p = new Pack.Sync(opt)
  const stream = new fsm.WriteStreamSync(opt.file, {
    mode: opt.mode || 0o666
  })
  p.pipe(stream)
  addFilesSync(p, files)
}

const createFile = (opt, files, cb) => {
  const p = new Pack(opt)
  const stream = new fsm.WriteStream(opt.file, {
    mode: opt.mode || 0o666
  })
  p.pipe(stream)

  const promise = new Promise((res, rej) => {
    stream.on('error', rej)
    stream.on('close', res)
    p.on('error', rej)
  })

  addFilesAsync(p, files)

  return cb ? promise.then(cb, cb) : promise
}

const addFilesSync = (p, files) => {
  files.forEach(file => {
    if (file.charAt(0) === '@')
      t({
        file: path.resolve(p.cwd, file.substr(1)),
        sync: true,
        noResume: true,
        onentry: entry => p.add(entry)
      })
    else
      p.add(file)
  })
  p.end()
}

const addFilesAsync = (p, files) => {
  while (files.length) {
    const file = files.shift()
    if (file.charAt(0) === '@')
      return t({
        file: path.resolve(p.cwd, file.substr(1)),
        noResume: true,
        onentry: entry => p.add(entry)
      }).then(_ => addFilesAsync(p, files))
    else
      p.add(file)
  }
  p.end()
}

const createSync = (opt, files) => {
  const p = new Pack.Sync(opt)
  addFilesSync(p, files)
  return p
}

const create = (opt, files) => {
  const p = new Pack(opt)
  addFilesAsync(p, files)
  return p
}