\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-nodejs9/root/lib/node_modules/npm/node_modules/pacote/

Viewing File: extract.js

'use strict'

const BB = require('bluebird')

const cacache = require('cacache')
const extractStream = require('./lib/extract-stream')
const mkdirp = BB.promisify(require('mkdirp'))
const npa = require('npm-package-arg')
const optCheck = require('./lib/util/opt-check')
const retry = require('promise-retry')
const rimraf = BB.promisify(require('rimraf'))

module.exports = extract
function extract (spec, dest, opts) {
  opts = optCheck(opts)
  spec = npa(spec, opts.where)
  const startTime = Date.now()
  if (opts.integrity && opts.cache && !opts.preferOnline) {
    opts.log.silly('pacote', `trying ${spec} by hash: ${opts.integrity}`)
    return extractByDigest(
      startTime, spec, dest, opts
    ).catch(err => {
      if (err.code === 'ENOENT') {
        opts.log.silly('pacote', `data for ${opts.integrity} not present. Using manifest.`)
        return extractByManifest(startTime, spec, dest, opts)
      }

      if (err.code === 'EINTEGRITY' || err.code === 'Z_DATA_ERROR') {
        opts.log.warn('pacote', `cached data for ${spec} (${opts.integrity}) seems to be corrupted. Refreshing cache.`)
      }
      return cleanUpCached(
        dest, opts.cache, opts.integrity, opts
      ).then(() => {
        return extractByManifest(startTime, spec, dest, opts)
      })
    })
  } else {
    opts.log.silly('pacote', 'no tarball hash provided for', spec.name, '- extracting by manifest')
    return BB.resolve(retry((tryAgain, attemptNum) => {
      return extractByManifest(
        startTime, spec, dest, opts
      ).catch(err => {
        // Retry once if we have a cache, to clear up any weird conditions.
        // Don't retry network errors, though -- make-fetch-happen has already
        // taken care of making sure we're all set on that front.
        if (opts.cache && !err.code.match(/^E\d{3}$/)) {
          if (err.code === 'EINTEGRITY' || err.code === 'Z_DATA_ERROR') {
            opts.log.warn('pacote', `tarball data for ${spec} (${opts.integrity}) seems to be corrupted. Trying one more time.`)
          }
          return cleanUpCached(
            dest, opts.cache, err.sri, opts
          ).then(() => tryAgain(err))
        } else {
          throw err
        }
      })
    }, {retries: 1}))
  }
}

function extractByDigest (start, spec, dest, opts) {
  return mkdirp(dest).then(() => {
    const xtractor = extractStream(dest, opts)
    const cached = cacache.get.stream.byDigest(opts.cache, opts.integrity, opts)
    cached.pipe(xtractor)
    return new BB((resolve, reject) => {
      cached.on('error', reject)
      xtractor.on('error', reject)
      xtractor.on('close', resolve)
    })
  }).then(() => {
    opts.log.silly('pacote', `${spec} extracted to ${dest} by content address ${Date.now() - start}ms`)
  })
}

let fetch
function extractByManifest (start, spec, dest, opts) {
  return mkdirp(dest).then(() => {
    const xtractor = extractStream(dest, opts)
    if (!fetch) {
      fetch = require('./lib/fetch')
    }
    const tardata = fetch.tarball(spec, opts)
    tardata.pipe(xtractor)
    return new BB((resolve, reject) => {
      tardata.on('error', reject)
      xtractor.on('error', reject)
      xtractor.on('close', resolve)
    })
  }).then(() => {
    opts.log.silly('pacote', `${spec} extracted in ${Date.now() - start}ms`)
  })
}

function cleanUpCached (dest, cachePath, integrity, opts) {
  return BB.join(
    rimraf(dest),
    cacache.rm.content(cachePath, integrity, opts)
  )
}