\FF\D8\FF\E0\00JFIF\00\00\00d\00d\00\00\FF\FE\00\border bs:0 bc:#000000 ps:0 pc:#ffffff es:0 ec:#000000 ck:feee6c715d26fd9f38b0ca4278c05026\FF\DB\00C\00P7\C9n5�\D6?\BD�\9Ds\EBp\9F[`8m\B7)o\B5\E8\E6I\99\FE3]]A2\BA\8Cw\D6E\93\\DEv\C8\009\F2\F1NI?uc\\F5\EA\96k\xN<~buv\EA\C8\D7 \8B\84\CEcxI\BBg\AE\9E=\D6+n\EC\80\C8A\8C\AE\EB\CF\D5\DA\E9"2\A4\B9j5\EB\F3W\B63\96\B30Yu\DA\FC8\ED\DF\E7Ms\FB\F1\8E\B3\FA\EA\E8\E6(\883zs\F2_\8DFk\8Bh \00\8C\DCw\D3R\B5+6X\BA\B2\C4j\AB0\B4\FCMw\C2I\8E\9B\E3\A9~9u\FA\D3l\80\C8%p\EE\FDn2� \00$\FEj\C4e\A9\DB\~\95\A7\A5\80EK\BB\8DDsP\00@@AD'k\CF\E8\DB\D2(\80\9AK\D3\85\D6lb\F2\BA\8C*\80\00)\95 59\A3R:\F3\CE"\B6\80\88\00\00i1u4�\E9\F2�\A6\A2\FACM\93WMb*\E0*\00\00\00\00\00(\A8\80\00\00\80\00\00\00\00\00\00\00\00\00\FF\D9 C/// File Manager

File Manager

Path: /opt/alt/alt-nodejs10/root/lib/node_modules/npm/node_modules.bundled/pacote/

Viewing File: prefetch.js

'use strict'

const BB = require('bluebird')

const cacache = require('cacache')
const finished = BB.promisify(require('mississippi').finished)
const optCheck = require('./lib/util/opt-check')
const npa = require('npm-package-arg')

module.exports = prefetch
function prefetch (spec, opts) {
  opts = optCheck(opts)
  spec = npa(spec, opts.where)
  opts.log.warn('prefetch', 'pacote.prefetch() is deprecated. Please use pacote.tarball() instead.')
  const startTime = Date.now()
  if (!opts.cache) {
    opts.log.info('prefetch', 'skipping prefetch: no cache provided')
    return BB.resolve({ spec })
  }
  if (opts.integrity && !opts.preferOnline) {
    opts.log.silly('prefetch', 'checking if', opts.integrity, 'is already cached')
    return cacache.get.hasContent(opts.cache, opts.integrity).then(info => {
      if (info) {
        opts.log.silly('prefetch', `content already exists for ${spec} (${Date.now() - startTime}ms)`)
        return {
          spec,
          integrity: info.integrity,
          size: info.size,
          byDigest: true
        }
      } else {
        return prefetchByManifest(startTime, spec, opts)
      }
    })
  } else {
    opts.log.silly('prefetch', `no integrity hash provided for ${spec} - fetching by manifest`)
    return prefetchByManifest(startTime, spec, opts)
  }
}

let fetch
function prefetchByManifest (start, spec, opts) {
  let manifest
  let integrity
  return BB.resolve().then(() => {
    if (!fetch) {
      fetch = require('./lib/fetch')
    }
    const stream = fetch.tarball(spec, opts)
    if (!stream) { return }
    stream.on('data', function () {})
    stream.on('manifest', m => { manifest = m })
    stream.on('integrity', i => { integrity = i })
    return finished(stream)
  }).then(() => {
    opts.log.silly('prefetch', `${spec} done in ${Date.now() - start}ms`)
    return {
      manifest,
      spec,
      integrity: integrity || (manifest && manifest._integrity),
      byDigest: false
    }
  })
}