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Directory :  /usr/local/lib/node_modules/npm/lib/utils/

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Current File : /usr/local/lib/node_modules/npm/lib/utils/tar.js
const tar = require('tar')
const ssri = require('ssri')
const npmlog = require('npmlog')
const formatBytes = require('./format-bytes.js')
const columnify = require('columnify')

const logTar = (tarball, opts = {}) => {
  const { unicode = false, log = npmlog } = opts
  log.notice('')
  log.notice('', `${unicode ? '📦 ' : 'package:'} ${tarball.name}@${tarball.version}`)
  log.notice('=== Tarball Contents ===')
  if (tarball.files.length) {
    log.notice('', columnify(tarball.files.map((f) => {
      const bytes = formatBytes(f.size, false)
      return (/^node_modules\//.test(f.path)) ? null
        : { path: f.path, size: `${bytes}` }
    }).filter(f => f), {
      include: ['size', 'path'],
      showHeaders: false,
    }))
  }
  if (tarball.bundled.length) {
    log.notice('=== Bundled Dependencies ===')
    tarball.bundled.forEach((name) => log.notice('', name))
  }
  log.notice('=== Tarball Details ===')
  log.notice('', columnify([
    { name: 'name:', value: tarball.name },
    { name: 'version:', value: tarball.version },
    tarball.filename && { name: 'filename:', value: tarball.filename },
    { name: 'package size:', value: formatBytes(tarball.size) },
    { name: 'unpacked size:', value: formatBytes(tarball.unpackedSize) },
    { name: 'shasum:', value: tarball.shasum },
    {
      name: 'integrity:',
      value: tarball.integrity.toString().substr(0, 20) + '[...]' + tarball.integrity.toString().substr(80),
    },
    tarball.bundled.length && { name: 'bundled deps:', value: tarball.bundled.length },
    tarball.bundled.length && { name: 'bundled files:', value: tarball.entryCount - tarball.files.length },
    tarball.bundled.length && { name: 'own files:', value: tarball.files.length },
    { name: 'total files:', value: tarball.entryCount },
  ].filter((x) => x), {
    include: ['name', 'value'],
    showHeaders: false,
  }))
  log.notice('', '')
}

const getContents = async (manifest, tarball) => {
  const files = []
  const bundled = new Set()
  let totalEntries = 0
  let totalEntrySize = 0

  // reads contents of tarball
  const stream = tar.t({
    onentry (entry) {
      totalEntries++
      totalEntrySize += entry.size
      const p = entry.path
      if (p.startsWith('package/node_modules/')) {
        const name = p.match(/^package\/node_modules\/((?:@[^/]+\/)?[^/]+)/)[1]
        bundled.add(name)
      }
      files.push({
        path: entry.path.replace(/^package\//, ''),
        size: entry.size,
        mode: entry.mode,
      })
    },
  })
  stream.end(tarball)

  const integrity = await ssri.fromData(tarball, {
    algorithms: ['sha1', 'sha512'],
  })

  const comparator = (a, b) => {
    return a.path.localeCompare(b.path, 'en', {
      sensitivity: 'case',
      numeric: true,
    })
  }

  const isUpper = (str) => {
    const ch = str.charAt(0)
    return ch === ch.toUpperCase()
  }

  const uppers = files.filter(file => isUpper(file.path))
  const others = files.filter(file => !isUpper(file.path))

  uppers.sort(comparator)
  others.sort(comparator)

  const shasum = integrity.sha1[0].hexDigest()
  return {
    id: manifest._id || `${manifest.name}@${manifest.version}`,
    name: manifest.name,
    version: manifest.version,
    size: tarball.length,
    unpackedSize: totalEntrySize,
    shasum,
    integrity: ssri.parse(integrity.sha512[0]),
    filename: `${manifest.name}-${manifest.version}.tgz`,
    files: uppers.concat(others),
    entryCount: totalEntries,
    bundled: Array.from(bundled),
  }
}

module.exports = { logTar, getContents }

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