Initial commit

node_modules/tar/LICENSE

@@ -0,0 +1,15 @@
+The ISC License
+
+Copyright (c) Isaac Z. Schlueter and Contributors
+
+Permission to use, copy, modify, and/or distribute this software for any
+purpose with or without fee is hereby granted, provided that the above
+copyright notice and this permission notice appear in all copies.
+
+THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES
+WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF
+MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR
+ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES
+WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN
+ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF OR
+IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.

node_modules/tar/index.js

@@ -0,0 +1,18 @@
+'use strict'
+
+// high-level commands
+exports.c = exports.create = require('./lib/create.js')
+exports.r = exports.replace = require('./lib/replace.js')
+exports.t = exports.list = require('./lib/list.js')
+exports.u = exports.update = require('./lib/update.js')
+exports.x = exports.extract = require('./lib/extract.js')
+
+// classes
+exports.Pack = require('./lib/pack.js')
+exports.Unpack = require('./lib/unpack.js')
+exports.Parse = require('./lib/parse.js')
+exports.ReadEntry = require('./lib/read-entry.js')
+exports.WriteEntry = require('./lib/write-entry.js')
+exports.Header = require('./lib/header.js')
+exports.Pax = require('./lib/pax.js')
+exports.types = require('./lib/types.js')

node_modules/tar/lib/buffer.js

@@ -0,0 +1,11 @@
+'use strict'
+
+// Buffer in node 4.x < 4.5.0 doesn't have working Buffer.from
+// or Buffer.alloc, and Buffer in node 10 deprecated the ctor.
+// .M, this is fine .\^/M..
+let B = Buffer
+/* istanbul ignore next */
+if (!B.alloc) {
+  B = require('safe-buffer').Buffer
+}
+module.exports = B

node_modules/tar/lib/create.js

@@ -0,0 +1,105 @@
+'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
+}

node_modules/tar/lib/extract.js

@@ -0,0 +1,112 @@
+'use strict'
+
+// tar -x
+const hlo = require('./high-level-opt.js')
+const Unpack = require('./unpack.js')
+const fs = require('fs')
+const fsm = require('fs-minipass')
+const path = require('path')
+
+const x = module.exports = (opt_, files, cb) => {
+  if (typeof opt_ === 'function')
+    cb = opt_, files = null, opt_ = {}
+  else if (Array.isArray(opt_))
+    files = opt_, opt_ = {}
+
+  if (typeof files === 'function')
+    cb = files, files = null
+
+  if (!files)
+    files = []
+  else
+    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')
+
+  if (files.length)
+    filesFilter(opt, files)
+
+  return opt.file && opt.sync ? extractFileSync(opt)
+    : opt.file ? extractFile(opt, cb)
+    : opt.sync ? extractSync(opt)
+    : extract(opt)
+}
+
+// construct a filter that limits the file entries listed
+// include child entries if a dir is included
+const filesFilter = (opt, files) => {
+  const map = new Map(files.map(f => [f.replace(/\/+$/, ''), true]))
+  const filter = opt.filter
+
+  const mapHas = (file, r) => {
+    const root = r || path.parse(file).root || '.'
+    const ret = file === root ? false
+      : map.has(file) ? map.get(file)
+      : mapHas(path.dirname(file), root)
+
+    map.set(file, ret)
+    return ret
+  }
+
+  opt.filter = filter
+    ? (file, entry) => filter(file, entry) && mapHas(file.replace(/\/+$/, ''))
+    : file => mapHas(file.replace(/\/+$/, ''))
+}
+
+const extractFileSync = opt => {
+  const u = new Unpack.Sync(opt)
+
+  const file = opt.file
+  let threw = true
+  let fd
+  const stat = fs.statSync(file)
+  // This trades a zero-byte read() syscall for a stat
+  // However, it will usually result in less memory allocation
+  const readSize = opt.maxReadSize || 16*1024*1024
+  const stream = new fsm.ReadStreamSync(file, {
+    readSize: readSize,
+    size: stat.size
+  })
+  stream.pipe(u)
+}
+
+const extractFile = (opt, cb) => {
+  const u = new Unpack(opt)
+  const readSize = opt.maxReadSize || 16*1024*1024
+
+  const file = opt.file
+  const p = new Promise((resolve, reject) => {
+    u.on('error', reject)
+    u.on('close', resolve)
+
+    // This trades a zero-byte read() syscall for a stat
+    // However, it will usually result in less memory allocation
+    fs.stat(file, (er, stat) => {
+      if (er)
+        reject(er)
+      else {
+        const stream = new fsm.ReadStream(file, {
+          readSize: readSize,
+          size: stat.size
+        })
+        stream.on('error', reject)
+        stream.pipe(u)
+      }
+    })
+  })
+  return cb ? p.then(cb, cb) : p
+}
+
+const extractSync = opt => {
+  return new Unpack.Sync(opt)
+}
+
+const extract = opt => {
+  return new Unpack(opt)
+}

node_modules/tar/lib/header.js

@@ -0,0 +1,289 @@
+'use strict'
+// parse a 512-byte header block to a data object, or vice-versa
+// encode returns `true` if a pax extended header is needed, because
+// the data could not be faithfully encoded in a simple header.
+// (Also, check header.needPax to see if it needs a pax header.)
+
+const Buffer = require('./buffer.js')
+const types = require('./types.js')
+const pathModule = require('path').posix
+const large = require('./large-numbers.js')
+
+const SLURP = Symbol('slurp')
+const TYPE = Symbol('type')
+
+class Header {
+  constructor (data, off, ex, gex) {
+    this.cksumValid = false
+    this.needPax = false
+    this.nullBlock = false
+
+    this.block = null
+    this.path = null
+    this.mode = null
+    this.uid = null
+    this.gid = null
+    this.size = null
+    this.mtime = null
+    this.cksum = null
+    this[TYPE] = '0'
+    this.linkpath = null
+    this.uname = null
+    this.gname = null
+    this.devmaj = 0
+    this.devmin = 0
+    this.atime = null
+    this.ctime = null
+
+    if (Buffer.isBuffer(data))
+      this.decode(data, off || 0, ex, gex)
+    else if (data)
+      this.set(data)
+  }
+
+  decode (buf, off, ex, gex) {
+    if (!off)
+      off = 0
+
+    if (!buf || !(buf.length >= off + 512))
+      throw new Error('need 512 bytes for header')
+
+    this.path = decString(buf, off, 100)
+    this.mode = decNumber(buf, off + 100, 8)
+    this.uid = decNumber(buf, off + 108, 8)
+    this.gid = decNumber(buf, off + 116, 8)
+    this.size = decNumber(buf, off + 124, 12)
+    this.mtime = decDate(buf, off + 136, 12)
+    this.cksum = decNumber(buf, off + 148, 12)
+
+    // if we have extended or global extended headers, apply them now
+    // See https://github.com/npm/node-tar/pull/187
+    this[SLURP](ex)
+    this[SLURP](gex, true)
+
+    // old tar versions marked dirs as a file with a trailing /
+    this[TYPE] = decString(buf, off + 156, 1)
+    if (this[TYPE] === '')
+      this[TYPE] = '0'
+    if (this[TYPE] === '0' && this.path.substr(-1) === '/')
+      this[TYPE] = '5'
+
+    // tar implementations sometimes incorrectly put the stat(dir).size
+    // as the size in the tarball, even though Directory entries are
+    // not able to have any body at all.  In the very rare chance that
+    // it actually DOES have a body, we weren't going to do anything with
+    // it anyway, and it'll just be a warning about an invalid header.
+    if (this[TYPE] === '5')
+      this.size = 0
+
+    this.linkpath = decString(buf, off + 157, 100)
+    if (buf.slice(off + 257, off + 265).toString() === 'ustar\u000000') {
+      this.uname = decString(buf, off + 265, 32)
+      this.gname = decString(buf, off + 297, 32)
+      this.devmaj = decNumber(buf, off + 329, 8)
+      this.devmin = decNumber(buf, off + 337, 8)
+      if (buf[off + 475] !== 0) {
+        // definitely a prefix, definitely >130 chars.
+        const prefix = decString(buf, off + 345, 155)
+        this.path = prefix + '/' + this.path
+      } else {
+        const prefix = decString(buf, off + 345, 130)
+        if (prefix)
+          this.path = prefix + '/' + this.path
+        this.atime = decDate(buf, off + 476, 12)
+        this.ctime = decDate(buf, off + 488, 12)
+      }
+    }
+
+    let sum = 8 * 0x20
+    for (let i = off; i < off + 148; i++) {
+      sum += buf[i]
+    }
+    for (let i = off + 156; i < off + 512; i++) {
+      sum += buf[i]
+    }
+    this.cksumValid = sum === this.cksum
+    if (this.cksum === null && sum === 8 * 0x20)
+      this.nullBlock = true
+  }
+
+  [SLURP] (ex, global) {
+    for (let k in ex) {
+      // we slurp in everything except for the path attribute in
+      // a global extended header, because that's weird.
+      if (ex[k] !== null && ex[k] !== undefined &&
+          !(global && k === 'path'))
+        this[k] = ex[k]
+    }
+  }
+
+  encode (buf, off) {
+    if (!buf) {
+      buf = this.block = Buffer.alloc(512)
+      off = 0
+    }
+
+    if (!off)
+      off = 0
+
+    if (!(buf.length >= off + 512))
+      throw new Error('need 512 bytes for header')
+
+    const prefixSize = this.ctime || this.atime ? 130 : 155
+    const split = splitPrefix(this.path || '', prefixSize)
+    const path = split[0]
+    const prefix = split[1]
+    this.needPax = split[2]
+
+    this.needPax = encString(buf, off, 100, path) || this.needPax
+    this.needPax = encNumber(buf, off + 100, 8, this.mode) || this.needPax
+    this.needPax = encNumber(buf, off + 108, 8, this.uid) || this.needPax
+    this.needPax = encNumber(buf, off + 116, 8, this.gid) || this.needPax
+    this.needPax = encNumber(buf, off + 124, 12, this.size) || this.needPax
+    this.needPax = encDate(buf, off + 136, 12, this.mtime) || this.needPax
+    buf[off + 156] = this[TYPE].charCodeAt(0)
+    this.needPax = encString(buf, off + 157, 100, this.linkpath) || this.needPax
+    buf.write('ustar\u000000', off + 257, 8)
+    this.needPax = encString(buf, off + 265, 32, this.uname) || this.needPax
+    this.needPax = encString(buf, off + 297, 32, this.gname) || this.needPax
+    this.needPax = encNumber(buf, off + 329, 8, this.devmaj) || this.needPax
+    this.needPax = encNumber(buf, off + 337, 8, this.devmin) || this.needPax
+    this.needPax = encString(buf, off + 345, prefixSize, prefix) || this.needPax
+    if (buf[off + 475] !== 0)
+      this.needPax = encString(buf, off + 345, 155, prefix) || this.needPax
+    else {
+      this.needPax = encString(buf, off + 345, 130, prefix) || this.needPax
+      this.needPax = encDate(buf, off + 476, 12, this.atime) || this.needPax
+      this.needPax = encDate(buf, off + 488, 12, this.ctime) || this.needPax
+    }
+
+    let sum = 8 * 0x20
+    for (let i = off; i < off + 148; i++) {
+      sum += buf[i]
+    }
+    for (let i = off + 156; i < off + 512; i++) {
+      sum += buf[i]
+    }
+    this.cksum = sum
+    encNumber(buf, off + 148, 8, this.cksum)
+    this.cksumValid = true
+
+    return this.needPax
+  }
+
+  set (data) {
+    for (let i in data) {
+      if (data[i] !== null && data[i] !== undefined)
+        this[i] = data[i]
+    }
+  }
+
+  get type () {
+    return types.name.get(this[TYPE]) || this[TYPE]
+  }
+
+  get typeKey () {
+    return this[TYPE]
+  }
+
+  set type (type) {
+    if (types.code.has(type))
+      this[TYPE] = types.code.get(type)
+    else
+      this[TYPE] = type
+  }
+}
+
+const splitPrefix = (p, prefixSize) => {
+  const pathSize = 100
+  let pp = p
+  let prefix = ''
+  let ret
+  const root = pathModule.parse(p).root || '.'
+
+  if (Buffer.byteLength(pp) < pathSize)
+    ret = [pp, prefix, false]
+  else {
+    // first set prefix to the dir, and path to the base
+    prefix = pathModule.dirname(pp)
+    pp = pathModule.basename(pp)
+
+    do {
+      // both fit!
+      if (Buffer.byteLength(pp) <= pathSize &&
+          Buffer.byteLength(prefix) <= prefixSize)
+        ret = [pp, prefix, false]
+
+      // prefix fits in prefix, but path doesn't fit in path
+      else if (Buffer.byteLength(pp) > pathSize &&
+          Buffer.byteLength(prefix) <= prefixSize)
+        ret = [pp.substr(0, pathSize - 1), prefix, true]
+
+      else {
+        // make path take a bit from prefix
+        pp = pathModule.join(pathModule.basename(prefix), pp)
+        prefix = pathModule.dirname(prefix)
+      }
+    } while (prefix !== root && !ret)
+
+    // at this point, found no resolution, just truncate
+    if (!ret)
+      ret = [p.substr(0, pathSize - 1), '', true]
+  }
+  return ret
+}
+
+const decString = (buf, off, size) =>
+  buf.slice(off, off + size).toString('utf8').replace(/\0.*/, '')
+
+const decDate = (buf, off, size) =>
+  numToDate(decNumber(buf, off, size))
+
+const numToDate = num => num === null ? null : new Date(num * 1000)
+
+const decNumber = (buf, off, size) =>
+  buf[off] & 0x80 ? large.parse(buf.slice(off, off + size))
+    : decSmallNumber(buf, off, size)
+
+const nanNull = value => isNaN(value) ? null : value
+
+const decSmallNumber = (buf, off, size) =>
+  nanNull(parseInt(
+    buf.slice(off, off + size)
+      .toString('utf8').replace(/\0.*$/, '').trim(), 8))
+
+// the maximum encodable as a null-terminated octal, by field size
+const MAXNUM = {
+  12: 0o77777777777,
+  8 : 0o7777777
+}
+
+const encNumber = (buf, off, size, number) =>
+  number === null ? false :
+  number > MAXNUM[size] || number < 0
+    ? (large.encode(number, buf.slice(off, off + size)), true)
+    : (encSmallNumber(buf, off, size, number), false)
+
+const encSmallNumber = (buf, off, size, number) =>
+  buf.write(octalString(number, size), off, size, 'ascii')
+
+const octalString = (number, size) =>
+  padOctal(Math.floor(number).toString(8), size)
+
+const padOctal = (string, size) =>
+  (string.length === size - 1 ? string
+  : new Array(size - string.length - 1).join('0') + string + ' ') + '\0'
+
+const encDate = (buf, off, size, date) =>
+  date === null ? false :
+  encNumber(buf, off, size, date.getTime() / 1000)
+
+// enough to fill the longest string we've got
+const NULLS = new Array(156).join('\0')
+// pad with nulls, return true if it's longer or non-ascii
+const encString = (buf, off, size, string) =>
+  string === null ? false :
+  (buf.write(string + NULLS, off, size, 'utf8'),
+   string.length !== Buffer.byteLength(string) || string.length > size)
+
+module.exports = Header

node_modules/tar/lib/high-level-opt.js

@@ -0,0 +1,29 @@
+'use strict'
+
+// turn tar(1) style args like `C` into the more verbose things like `cwd`
+
+const argmap = new Map([
+  ['C', 'cwd'],
+  ['f', 'file'],
+  ['z', 'gzip'],
+  ['P', 'preservePaths'],
+  ['U', 'unlink'],
+  ['strip-components', 'strip'],
+  ['stripComponents', 'strip'],
+  ['keep-newer', 'newer'],
+  ['keepNewer', 'newer'],
+  ['keep-newer-files', 'newer'],
+  ['keepNewerFiles', 'newer'],
+  ['k', 'keep'],
+  ['keep-existing', 'keep'],
+  ['keepExisting', 'keep'],
+  ['m', 'noMtime'],
+  ['no-mtime', 'noMtime'],
+  ['p', 'preserveOwner'],
+  ['L', 'follow'],
+  ['h', 'follow']
+])
+
+const parse = module.exports = opt => opt ? Object.keys(opt).map(k => [
+  argmap.has(k) ? argmap.get(k) : k, opt[k]
+]).reduce((set, kv) => (set[kv[0]] = kv[1], set), Object.create(null)) : {}

node_modules/tar/lib/large-numbers.js

@@ -0,0 +1,92 @@
+'use strict'
+// Tar can encode large and negative numbers using a leading byte of
+// 0xff for negative, and 0x80 for positive.  The trailing byte in the
+// section will always be 0x20, or in some implementations 0x00.
+// this module encodes and decodes these things.
+
+const encode = exports.encode = (num, buf) => {
+  buf[buf.length - 1] = 0x20
+  if (num < 0)
+    encodeNegative(num, buf)
+  else
+    encodePositive(num, buf)
+  return buf
+}
+
+const encodePositive = (num, buf) => {
+  buf[0] = 0x80
+  for (var i = buf.length - 2; i > 0; i--) {
+    if (num === 0)
+      buf[i] = 0
+    else {
+      buf[i] = num % 0x100
+      num = Math.floor(num / 0x100)
+    }
+  }
+}
+
+const encodeNegative = (num, buf) => {
+  buf[0] = 0xff
+  var flipped = false
+  num = num * -1
+  for (var i = buf.length - 2; i > 0; i--) {
+    var byte
+    if (num === 0)
+      byte = 0
+    else {
+      byte = num % 0x100
+      num = Math.floor(num / 0x100)
+    }
+    if (flipped)
+      buf[i] = onesComp(byte)
+    else if (byte === 0)
+      buf[i] = 0
+    else {
+      flipped = true
+      buf[i] = twosComp(byte)
+    }
+  }
+}
+
+const parse = exports.parse = (buf) => {
+  var post = buf[buf.length - 1]
+  var pre = buf[0]
+  return pre === 0x80 ? pos(buf.slice(1, buf.length - 1))
+   : twos(buf.slice(1, buf.length - 1))
+}
+
+const twos = (buf) => {
+  var len = buf.length
+  var sum = 0
+  var flipped = false
+  for (var i = len - 1; i > -1; i--) {
+    var byte = buf[i]
+    var f
+    if (flipped)
+      f = onesComp(byte)
+    else if (byte === 0)
+      f = byte
+    else {
+      flipped = true
+      f = twosComp(byte)
+    }
+    if (f !== 0)
+      sum += f * Math.pow(256, len - i - 1)
+  }
+  return sum * -1
+}
+
+const pos = (buf) => {
+  var len = buf.length
+  var sum = 0
+  for (var i = len - 1; i > -1; i--) {
+    var byte = buf[i]
+    if (byte !== 0)
+      sum += byte * Math.pow(256, len - i - 1)
+  }
+  return sum
+}
+
+const onesComp = byte => (0xff ^ byte) & 0xff
+
+const twosComp = byte => ((0xff ^ byte) + 1) & 0xff

node_modules/tar/lib/list.js

@@ -0,0 +1,130 @@
+'use strict'
+
+const Buffer = require('./buffer.js')
+
+// XXX: This shares a lot in common with extract.js
+// maybe some DRY opportunity here?
+
+// tar -t
+const hlo = require('./high-level-opt.js')
+const Parser = require('./parse.js')
+const fs = require('fs')
+const fsm = require('fs-minipass')
+const path = require('path')
+
+const t = module.exports = (opt_, files, cb) => {
+  if (typeof opt_ === 'function')
+    cb = opt_, files = null, opt_ = {}
+  else if (Array.isArray(opt_))
+    files = opt_, opt_ = {}
+
+  if (typeof files === 'function')
+    cb = files, files = null
+
+  if (!files)
+    files = []
+  else
+    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')
+
+  if (files.length)
+    filesFilter(opt, files)
+
+  if (!opt.noResume)
+    onentryFunction(opt)
+
+  return opt.file && opt.sync ? listFileSync(opt)
+    : opt.file ? listFile(opt, cb)
+    : list(opt)
+}
+
+const onentryFunction = opt => {
+  const onentry = opt.onentry
+  opt.onentry = onentry ? e => {
+    onentry(e)
+    e.resume()
+  } : e => e.resume()
+}
+
+// construct a filter that limits the file entries listed
+// include child entries if a dir is included
+const filesFilter = (opt, files) => {
+  const map = new Map(files.map(f => [f.replace(/\/+$/, ''), true]))
+  const filter = opt.filter
+
+  const mapHas = (file, r) => {
+    const root = r || path.parse(file).root || '.'
+    const ret = file === root ? false
+      : map.has(file) ? map.get(file)
+      : mapHas(path.dirname(file), root)
+
+    map.set(file, ret)
+    return ret
+  }
+
+  opt.filter = filter
+    ? (file, entry) => filter(file, entry) && mapHas(file.replace(/\/+$/, ''))
+    : file => mapHas(file.replace(/\/+$/, ''))
+}
+
+const listFileSync = opt => {
+  const p = list(opt)
+  const file = opt.file
+  let threw = true
+  let fd
+  try {
+    const stat = fs.statSync(file)
+    const readSize = opt.maxReadSize || 16*1024*1024
+    if (stat.size < readSize) {
+      p.end(fs.readFileSync(file))
+    } else {
+      let pos = 0
+      const buf = Buffer.allocUnsafe(readSize)
+      fd = fs.openSync(file, 'r')
+      while (pos < stat.size) {
+        let bytesRead = fs.readSync(fd, buf, 0, readSize, pos)
+        pos += bytesRead
+        p.write(buf.slice(0, bytesRead))
+      }
+      p.end()
+    }
+    threw = false
+  } finally {
+    if (threw && fd)
+      try { fs.closeSync(fd) } catch (er) {}
+  }
+}
+
+const listFile = (opt, cb) => {
+  const parse = new Parser(opt)
+  const readSize = opt.maxReadSize || 16*1024*1024
+
+  const file = opt.file
+  const p = new Promise((resolve, reject) => {
+    parse.on('error', reject)
+    parse.on('end', resolve)
+
+    fs.stat(file, (er, stat) => {
+      if (er)
+        reject(er)
+      else {
+        const stream = new fsm.ReadStream(file, {
+          readSize: readSize,
+          size: stat.size
+        })
+        stream.on('error', reject)
+        stream.pipe(parse)
+      }
+    })
+  })
+  return cb ? p.then(cb, cb) : p
+}
+
+const list = opt => new Parser(opt)

node_modules/tar/lib/mkdir.js

@@ -0,0 +1,206 @@
+'use strict'
+// wrapper around mkdirp for tar's needs.
+
+// TODO: This should probably be a class, not functionally
+// passing around state in a gazillion args.
+
+const mkdirp = require('mkdirp')
+const fs = require('fs')
+const path = require('path')
+const chownr = require('chownr')
+
+class SymlinkError extends Error {
+  constructor (symlink, path) {
+    super('Cannot extract through symbolic link')
+    this.path = path
+    this.symlink = symlink
+  }
+
+  get name () {
+    return 'SylinkError'
+  }
+}
+
+class CwdError extends Error {
+  constructor (path, code) {
+    super(code + ': Cannot cd into \'' + path + '\'')
+    this.path = path
+    this.code = code
+  }
+
+  get name () {
+    return 'CwdError'
+  }
+}
+
+const mkdir = module.exports = (dir, opt, cb) => {
+  // if there's any overlap between mask and mode,
+  // then we'll need an explicit chmod
+  const umask = opt.umask
+  const mode = opt.mode | 0o0700
+  const needChmod = (mode & umask) !== 0
+
+  const uid = opt.uid
+  const gid = opt.gid
+  const doChown = typeof uid === 'number' &&
+    typeof gid === 'number' &&
+    ( uid !== opt.processUid || gid !== opt.processGid )
+
+  const preserve = opt.preserve
+  const unlink = opt.unlink
+  const cache = opt.cache
+  const cwd = opt.cwd
+
+  const done = (er, created) => {
+    if (er)
+      cb(er)
+    else {
+      cache.set(dir, true)
+      if (created && doChown)
+        chownr(created, uid, gid, er => done(er))
+      else if (needChmod)
+        fs.chmod(dir, mode, cb)
+      else
+        cb()
+    }
+  }
+
+  if (cache && cache.get(dir) === true)
+    return done()
+
+  if (dir === cwd)
+    return fs.lstat(dir, (er, st) => {
+      if (er || !st.isDirectory())
+        er = new CwdError(dir, er && er.code || 'ENOTDIR')
+      done(er)
+    })
+
+  if (preserve)
+    return mkdirp(dir, mode, done)
+
+  const sub = path.relative(cwd, dir)
+  const parts = sub.split(/\/|\\/)
+  mkdir_(cwd, parts, mode, cache, unlink, cwd, null, done)
+}
+
+const mkdir_ = (base, parts, mode, cache, unlink, cwd, created, cb) => {
+  if (!parts.length)
+    return cb(null, created)
+  const p = parts.shift()
+  const part = base + '/' + p
+  if (cache.get(part))
+    return mkdir_(part, parts, mode, cache, unlink, cwd, created, cb)
+  fs.mkdir(part, mode, onmkdir(part, parts, mode, cache, unlink, cwd, created, cb))
+}
+
+const onmkdir = (part, parts, mode, cache, unlink, cwd, created, cb) => er => {
+  if (er) {
+    if (er.path && path.dirname(er.path) === cwd &&
+        (er.code === 'ENOTDIR' || er.code === 'ENOENT'))
+      return cb(new CwdError(cwd, er.code))
+
+    fs.lstat(part, (statEr, st) => {
+      if (statEr)
+        cb(statEr)
+      else if (st.isDirectory())
+        mkdir_(part, parts, mode, cache, unlink, cwd, created, cb)
+      else if (unlink)
+        fs.unlink(part, er => {
+          if (er)
+            return cb(er)
+          fs.mkdir(part, mode, onmkdir(part, parts, mode, cache, unlink, cwd, created, cb))
+        })
+      else if (st.isSymbolicLink())
+        return cb(new SymlinkError(part, part + '/' + parts.join('/')))
+      else
+        cb(er)
+    })
+  } else {
+    created = created || part
+    mkdir_(part, parts, mode, cache, unlink, cwd, created, cb)
+  }
+}
+
+const mkdirSync = module.exports.sync = (dir, opt) => {
+  // if there's any overlap between mask and mode,
+  // then we'll need an explicit chmod
+  const umask = opt.umask
+  const mode = opt.mode | 0o0700
+  const needChmod = (mode & umask) !== 0
+
+  const uid = opt.uid
+  const gid = opt.gid
+  const doChown = typeof uid === 'number' &&
+    typeof gid === 'number' &&
+    ( uid !== opt.processUid || gid !== opt.processGid )
+
+  const preserve = opt.preserve
+  const unlink = opt.unlink
+  const cache = opt.cache
+  const cwd = opt.cwd
+
+  const done = (created) => {
+    cache.set(dir, true)
+    if (created && doChown)
+      chownr.sync(created, uid, gid)
+    if (needChmod)
+      fs.chmodSync(dir, mode)
+  }
+
+  if (cache && cache.get(dir) === true)
+    return done()
+
+  if (dir === cwd) {
+    let ok = false
+    let code = 'ENOTDIR'
+    try {
+      ok = fs.lstatSync(dir).isDirectory()
+    } catch (er) {
+      code = er.code
+    } finally {
+      if (!ok)
+        throw new CwdError(dir, code)
+    }
+    done()
+    return
+  }
+
+  if (preserve)
+    return done(mkdirp.sync(dir, mode))
+
+  const sub = path.relative(cwd, dir)
+  const parts = sub.split(/\/|\\/)
+  let created = null
+  for (let p = parts.shift(), part = cwd;
+       p && (part += '/' + p);
+       p = parts.shift()) {
+
+    if (cache.get(part))
+      continue
+
+    try {
+      fs.mkdirSync(part, mode)
+      created = created || part
+      cache.set(part, true)
+    } catch (er) {
+      if (er.path && path.dirname(er.path) === cwd &&
+          (er.code === 'ENOTDIR' || er.code === 'ENOENT'))
+        return new CwdError(cwd, er.code)
+
+      const st = fs.lstatSync(part)
+      if (st.isDirectory()) {
+        cache.set(part, true)
+        continue
+      } else if (unlink) {
+        fs.unlinkSync(part)
+        fs.mkdirSync(part, mode)
+        created = created || part
+        cache.set(part, true)
+        continue
+      } else if (st.isSymbolicLink())
+        return new SymlinkError(part, part + '/' + parts.join('/'))
+    }
+  }
+
+  return done(created)
+}

node_modules/tar/lib/mode-fix.js

@@ -0,0 +1,14 @@
+'use strict'
+module.exports = (mode, isDir) => {
+  mode &= 0o7777
+  // if dirs are readable, then they should be listable
+  if (isDir) {
+    if (mode & 0o400)
+      mode |= 0o100
+    if (mode & 0o40)
+      mode |= 0o10
+    if (mode & 0o4)
+      mode |= 0o1
+  }
+  return mode
+}

node_modules/tar/lib/pack.js

@@ -0,0 +1,404 @@
+'use strict'
+
+const Buffer = require('./buffer.js')
+
+// A readable tar stream creator
+// Technically, this is a transform stream that you write paths into,
+// and tar format comes out of.
+// The `add()` method is like `write()` but returns this,
+// and end() return `this` as well, so you can
+// do `new Pack(opt).add('files').add('dir').end().pipe(output)
+// You could also do something like:
+// streamOfPaths().pipe(new Pack()).pipe(new fs.WriteStream('out.tar'))
+
+class PackJob {
+  constructor (path, absolute) {
+    this.path = path || './'
+    this.absolute = absolute
+    this.entry = null
+    this.stat = null
+    this.readdir = null
+    this.pending = false
+    this.ignore = false
+    this.piped = false
+  }
+}
+
+const MiniPass = require('minipass')
+const zlib = require('minizlib')
+const ReadEntry = require('./read-entry.js')
+const WriteEntry = require('./write-entry.js')
+const WriteEntrySync = WriteEntry.Sync
+const WriteEntryTar = WriteEntry.Tar
+const Yallist = require('yallist')
+const EOF = Buffer.alloc(1024)
+const ONSTAT = Symbol('onStat')
+const ENDED = Symbol('ended')
+const QUEUE = Symbol('queue')
+const CURRENT = Symbol('current')
+const PROCESS = Symbol('process')
+const PROCESSING = Symbol('processing')
+const PROCESSJOB = Symbol('processJob')
+const JOBS = Symbol('jobs')
+const JOBDONE = Symbol('jobDone')
+const ADDFSENTRY = Symbol('addFSEntry')
+const ADDTARENTRY = Symbol('addTarEntry')
+const STAT = Symbol('stat')
+const READDIR = Symbol('readdir')
+const ONREADDIR = Symbol('onreaddir')
+const PIPE = Symbol('pipe')
+const ENTRY = Symbol('entry')
+const ENTRYOPT = Symbol('entryOpt')
+const WRITEENTRYCLASS = Symbol('writeEntryClass')
+const WRITE = Symbol('write')
+const ONDRAIN = Symbol('ondrain')
+
+const fs = require('fs')
+const path = require('path')
+const warner = require('./warn-mixin.js')
+
+const Pack = warner(class Pack extends MiniPass {
+  constructor (opt) {
+    super(opt)
+    opt = opt || Object.create(null)
+    this.opt = opt
+    this.cwd = opt.cwd || process.cwd()
+    this.maxReadSize = opt.maxReadSize
+    this.preservePaths = !!opt.preservePaths
+    this.strict = !!opt.strict
+    this.noPax = !!opt.noPax
+    this.prefix = (opt.prefix || '').replace(/(\\|\/)+$/, '')
+    this.linkCache = opt.linkCache || new Map()
+    this.statCache = opt.statCache || new Map()
+    this.readdirCache = opt.readdirCache || new Map()
+
+    this[WRITEENTRYCLASS] = WriteEntry
+    if (typeof opt.onwarn === 'function')
+      this.on('warn', opt.onwarn)
+
+    this.zip = null
+    if (opt.gzip) {
+      if (typeof opt.gzip !== 'object')
+        opt.gzip = {}
+      this.zip = new zlib.Gzip(opt.gzip)
+      this.zip.on('data', chunk => super.write(chunk))
+      this.zip.on('end', _ => super.end())
+      this.zip.on('drain', _ => this[ONDRAIN]())
+      this.on('resume', _ => this.zip.resume())
+    } else
+      this.on('drain', this[ONDRAIN])
+
+    this.portable = !!opt.portable
+    this.noDirRecurse = !!opt.noDirRecurse
+    this.follow = !!opt.follow
+    this.noMtime = !!opt.noMtime
+    this.mtime = opt.mtime || null
+
+    this.filter = typeof opt.filter === 'function' ? opt.filter : _ => true
+
+    this[QUEUE] = new Yallist
+    this[JOBS] = 0
+    this.jobs = +opt.jobs || 4
+    this[PROCESSING] = false
+    this[ENDED] = false
+  }
+
+  [WRITE] (chunk) {
+    return super.write(chunk)
+  }
+
+  add (path) {
+    this.write(path)
+    return this
+  }
+
+  end (path) {
+    if (path)
+      this.write(path)
+    this[ENDED] = true
+    this[PROCESS]()
+    return this
+  }
+
+  write (path) {
+    if (this[ENDED])
+      throw new Error('write after end')
+
+    if (path instanceof ReadEntry)
+      this[ADDTARENTRY](path)
+    else
+      this[ADDFSENTRY](path)
+    return this.flowing
+  }
+
+  [ADDTARENTRY] (p) {
+    const absolute = path.resolve(this.cwd, p.path)
+    if (this.prefix)
+      p.path = this.prefix + '/' + p.path.replace(/^\.(\/+|$)/, '')
+
+    // in this case, we don't have to wait for the stat
+    if (!this.filter(p.path, p))
+      p.resume()
+    else {
+      const job = new PackJob(p.path, absolute, false)
+      job.entry = new WriteEntryTar(p, this[ENTRYOPT](job))
+      job.entry.on('end', _ => this[JOBDONE](job))
+      this[JOBS] += 1
+      this[QUEUE].push(job)
+    }
+
+    this[PROCESS]()
+  }
+
+  [ADDFSENTRY] (p) {
+    const absolute = path.resolve(this.cwd, p)
+    if (this.prefix)
+      p = this.prefix + '/' + p.replace(/^\.(\/+|$)/, '')
+
+    this[QUEUE].push(new PackJob(p, absolute))
+    this[PROCESS]()
+  }
+
+  [STAT] (job) {
+    job.pending = true
+    this[JOBS] += 1
+    const stat = this.follow ? 'stat' : 'lstat'
+    fs[stat](job.absolute, (er, stat) => {
+      job.pending = false
+      this[JOBS] -= 1
+      if (er)
+        this.emit('error', er)
+      else
+        this[ONSTAT](job, stat)
+    })
+  }
+
+  [ONSTAT] (job, stat) {
+    this.statCache.set(job.absolute, stat)
+    job.stat = stat
+
+    // now we have the stat, we can filter it.
+    if (!this.filter(job.path, stat))
+      job.ignore = true
+
+    this[PROCESS]()
+  }
+
+  [READDIR] (job) {
+    job.pending = true
+    this[JOBS] += 1
+    fs.readdir(job.absolute, (er, entries) => {
+      job.pending = false
+      this[JOBS] -= 1
+      if (er)
+        return this.emit('error', er)
+      this[ONREADDIR](job, entries)
+    })
+  }
+
+  [ONREADDIR] (job, entries) {
+    this.readdirCache.set(job.absolute, entries)
+    job.readdir = entries
+    this[PROCESS]()
+  }
+
+  [PROCESS] () {
+    if (this[PROCESSING])
+      return
+
+    this[PROCESSING] = true
+    for (let w = this[QUEUE].head;
+         w !== null && this[JOBS] < this.jobs;
+         w = w.next) {
+      this[PROCESSJOB](w.value)
+      if (w.value.ignore) {
+        const p = w.next
+        this[QUEUE].removeNode(w)
+        w.next = p
+      }
+    }
+
+    this[PROCESSING] = false
+
+    if (this[ENDED] && !this[QUEUE].length && this[JOBS] === 0) {
+      if (this.zip)
+        this.zip.end(EOF)
+      else {
+        super.write(EOF)
+        super.end()
+      }
+    }
+  }
+
+  get [CURRENT] () {
+    return this[QUEUE] && this[QUEUE].head && this[QUEUE].head.value
+  }
+
+  [JOBDONE] (job) {
+    this[QUEUE].shift()
+    this[JOBS] -= 1
+    this[PROCESS]()
+  }
+
+  [PROCESSJOB] (job) {
+    if (job.pending)
+      return
+
+    if (job.entry) {
+      if (job === this[CURRENT] && !job.piped)
+        this[PIPE](job)
+      return
+    }
+
+    if (!job.stat) {
+      if (this.statCache.has(job.absolute))
+        this[ONSTAT](job, this.statCache.get(job.absolute))
+      else
+        this[STAT](job)
+    }
+    if (!job.stat)
+      return
+
+    // filtered out!
+    if (job.ignore)
+      return
+
+    if (!this.noDirRecurse && job.stat.isDirectory() && !job.readdir) {
+      if (this.readdirCache.has(job.absolute))
+        this[ONREADDIR](job, this.readdirCache.get(job.absolute))
+      else
+        this[READDIR](job)
+      if (!job.readdir)
+        return
+    }
+
+    // we know it doesn't have an entry, because that got checked above
+    job.entry = this[ENTRY](job)
+    if (!job.entry) {
+      job.ignore = true
+      return
+    }
+
+    if (job === this[CURRENT] && !job.piped)
+      this[PIPE](job)
+  }
+
+  [ENTRYOPT] (job) {
+    return {
+      onwarn: (msg, data) => {
+        this.warn(msg, data)
+      },
+      noPax: this.noPax,
+      cwd: this.cwd,
+      absolute: job.absolute,
+      preservePaths: this.preservePaths,
+      maxReadSize: this.maxReadSize,
+      strict: this.strict,
+      portable: this.portable,
+      linkCache: this.linkCache,
+      statCache: this.statCache,
+      noMtime: this.noMtime,
+      mtime: this.mtime
+    }
+  }
+
+  [ENTRY] (job) {
+    this[JOBS] += 1
+    try {
+      return new this[WRITEENTRYCLASS](job.path, this[ENTRYOPT](job))
+        .on('end', () => this[JOBDONE](job))
+        .on('error', er => this.emit('error', er))
+    } catch (er) {
+      this.emit('error', er)
+    }
+  }
+
+  [ONDRAIN] () {
+    if (this[CURRENT] && this[CURRENT].entry)
+      this[CURRENT].entry.resume()
+  }
+
+  // like .pipe() but using super, because our write() is special
+  [PIPE] (job) {
+    job.piped = true
+
+    if (job.readdir)
+      job.readdir.forEach(entry => {
+        const p = this.prefix ?
+          job.path.slice(this.prefix.length + 1) || './'
+          : job.path
+
+        const base = p === './' ? '' : p.replace(/\/*$/, '/')
+        this[ADDFSENTRY](base + entry)
+      })
+
+    const source = job.entry
+    const zip = this.zip
+
+    if (zip)
+      source.on('data', chunk => {
+        if (!zip.write(chunk))
+          source.pause()
+      })
+    else
+      source.on('data', chunk => {
+        if (!super.write(chunk))
+          source.pause()
+      })
+  }
+
+  pause () {
+    if (this.zip)
+      this.zip.pause()
+    return super.pause()
+  }
+})
+
+class PackSync extends Pack {
+  constructor (opt) {
+    super(opt)
+    this[WRITEENTRYCLASS] = WriteEntrySync
+  }
+
+  // pause/resume are no-ops in sync streams.
+  pause () {}
+  resume () {}
+
+  [STAT] (job) {
+    const stat = this.follow ? 'statSync' : 'lstatSync'
+    this[ONSTAT](job, fs[stat](job.absolute))
+  }
+
+  [READDIR] (job, stat) {
+    this[ONREADDIR](job, fs.readdirSync(job.absolute))
+  }
+
+  // gotta get it all in this tick
+  [PIPE] (job) {
+    const source = job.entry
+    const zip = this.zip
+
+    if (job.readdir)
+      job.readdir.forEach(entry => {
+        const p = this.prefix ?
+          job.path.slice(this.prefix.length + 1) || './'
+          : job.path
+
+        const base = p === './' ? '' : p.replace(/\/*$/, '/')
+        this[ADDFSENTRY](base + entry)
+      })
+
+    if (zip)
+      source.on('data', chunk => {
+        zip.write(chunk)
+      })
+    else
+      source.on('data', chunk => {
+        super[WRITE](chunk)
+      })
+  }
+}
+
+Pack.Sync = PackSync
+
+module.exports = Pack

node_modules/tar/lib/parse.js

@@ -0,0 +1,422 @@
+'use strict'
+
+// this[BUFFER] is the remainder of a chunk if we're waiting for
+// the full 512 bytes of a header to come in.  We will Buffer.concat()
+// it to the next write(), which is a mem copy, but a small one.
+//
+// this[QUEUE] is a Yallist of entries that haven't been emitted
+// yet this can only get filled up if the user keeps write()ing after
+// a write() returns false, or does a write() with more than one entry
+//
+// We don't buffer chunks, we always parse them and either create an
+// entry, or push it into the active entry.  The ReadEntry class knows
+// to throw data away if .ignore=true
+//
+// Shift entry off the buffer when it emits 'end', and emit 'entry' for
+// the next one in the list.
+//
+// At any time, we're pushing body chunks into the entry at WRITEENTRY,
+// and waiting for 'end' on the entry at READENTRY
+//
+// ignored entries get .resume() called on them straight away
+
+const warner = require('./warn-mixin.js')
+const path = require('path')
+const Header = require('./header.js')
+const EE = require('events')
+const Yallist = require('yallist')
+const maxMetaEntrySize = 1024 * 1024
+const Entry = require('./read-entry.js')
+const Pax = require('./pax.js')
+const zlib = require('minizlib')
+
+const gzipHeader = Buffer.from([0x1f, 0x8b])
+const STATE = Symbol('state')
+const WRITEENTRY = Symbol('writeEntry')
+const READENTRY = Symbol('readEntry')
+const NEXTENTRY = Symbol('nextEntry')
+const PROCESSENTRY = Symbol('processEntry')
+const EX = Symbol('extendedHeader')
+const GEX = Symbol('globalExtendedHeader')
+const META = Symbol('meta')
+const EMITMETA = Symbol('emitMeta')
+const BUFFER = Symbol('buffer')
+const QUEUE = Symbol('queue')
+const ENDED = Symbol('ended')
+const EMITTEDEND = Symbol('emittedEnd')
+const EMIT = Symbol('emit')
+const UNZIP = Symbol('unzip')
+const CONSUMECHUNK = Symbol('consumeChunk')
+const CONSUMECHUNKSUB = Symbol('consumeChunkSub')
+const CONSUMEBODY = Symbol('consumeBody')
+const CONSUMEMETA = Symbol('consumeMeta')
+const CONSUMEHEADER = Symbol('consumeHeader')
+const CONSUMING = Symbol('consuming')
+const BUFFERCONCAT = Symbol('bufferConcat')
+const MAYBEEND = Symbol('maybeEnd')
+const WRITING = Symbol('writing')
+const ABORTED = Symbol('aborted')
+const DONE = Symbol('onDone')
+
+const noop = _ => true
+
+module.exports = warner(class Parser extends EE {
+  constructor (opt) {
+    opt = opt || {}
+    super(opt)
+
+    if (opt.ondone)
+      this.on(DONE, opt.ondone)
+    else
+      this.on(DONE, _ => {
+        this.emit('prefinish')
+        this.emit('finish')
+        this.emit('end')
+        this.emit('close')
+      })
+
+    this.strict = !!opt.strict
+    this.maxMetaEntrySize = opt.maxMetaEntrySize || maxMetaEntrySize
+    this.filter = typeof opt.filter === 'function' ? opt.filter : noop
+
+    // have to set this so that streams are ok piping into it
+    this.writable = true
+    this.readable = false
+
+    this[QUEUE] = new Yallist()
+    this[BUFFER] = null
+    this[READENTRY] = null
+    this[WRITEENTRY] = null
+    this[STATE] = 'begin'
+    this[META] = ''
+    this[EX] = null
+    this[GEX] = null
+    this[ENDED] = false
+    this[UNZIP] = null
+    this[ABORTED] = false
+    if (typeof opt.onwarn === 'function')
+      this.on('warn', opt.onwarn)
+    if (typeof opt.onentry === 'function')
+      this.on('entry', opt.onentry)
+  }
+
+  [CONSUMEHEADER] (chunk, position) {
+    const header = new Header(chunk, position, this[EX], this[GEX])
+
+    if (header.nullBlock)
+      this[EMIT]('nullBlock')
+    else if (!header.cksumValid)
+      this.warn('invalid entry', header)
+    else if (!header.path)
+      this.warn('invalid: path is required', header)
+    else {
+      const type = header.type
+      if (/^(Symbolic)?Link$/.test(type) && !header.linkpath)
+        this.warn('invalid: linkpath required', header)
+      else if (!/^(Symbolic)?Link$/.test(type) && header.linkpath)
+        this.warn('invalid: linkpath forbidden', header)
+      else {
+        const entry = this[WRITEENTRY] = new Entry(header, this[EX], this[GEX])
+
+        if (entry.meta) {
+          if (entry.size > this.maxMetaEntrySize) {
+            entry.ignore = true
+            this[EMIT]('ignoredEntry', entry)
+            this[STATE] = 'ignore'
+          } else if (entry.size > 0) {
+            this[META] = ''
+            entry.on('data', c => this[META] += c)
+            this[STATE] = 'meta'
+          }
+        } else {
+
+          this[EX] = null
+          entry.ignore = entry.ignore || !this.filter(entry.path, entry)
+          if (entry.ignore) {
+            this[EMIT]('ignoredEntry', entry)
+            this[STATE] = entry.remain ? 'ignore' : 'begin'
+          } else {
+            if (entry.remain)
+              this[STATE] = 'body'
+            else {
+              this[STATE] = 'begin'
+              entry.end()
+            }
+
+            if (!this[READENTRY]) {
+              this[QUEUE].push(entry)
+              this[NEXTENTRY]()
+            } else
+              this[QUEUE].push(entry)
+          }
+        }
+      }
+    }
+  }
+
+  [PROCESSENTRY] (entry) {
+    let go = true
+
+    if (!entry) {
+      this[READENTRY] = null
+      go = false
+    } else if (Array.isArray(entry))
+      this.emit.apply(this, entry)
+    else {
+      this[READENTRY] = entry
+      this.emit('entry', entry)
+      if (!entry.emittedEnd) {
+        entry.on('end', _ => this[NEXTENTRY]())
+        go = false
+      }
+    }
+
+    return go
+  }
+
+  [NEXTENTRY] () {
+    do {} while (this[PROCESSENTRY](this[QUEUE].shift()))
+
+    if (!this[QUEUE].length) {
+      // At this point, there's nothing in the queue, but we may have an
+      // entry which is being consumed (readEntry).
+      // If we don't, then we definitely can handle more data.
+      // If we do, and either it's flowing, or it has never had any data
+      // written to it, then it needs more.
+      // The only other possibility is that it has returned false from a
+      // write() call, so we wait for the next drain to continue.
+      const re = this[READENTRY]
+      const drainNow = !re || re.flowing || re.size === re.remain
+      if (drainNow) {
+        if (!this[WRITING])
+          this.emit('drain')
+      } else
+        re.once('drain', _ => this.emit('drain'))
+     }
+  }
+
+  [CONSUMEBODY] (chunk, position) {
+    // write up to but no  more than writeEntry.blockRemain
+    const entry = this[WRITEENTRY]
+    const br = entry.blockRemain
+    const c = (br >= chunk.length && position === 0) ? chunk
+      : chunk.slice(position, position + br)
+
+    entry.write(c)
+
+    if (!entry.blockRemain) {
+      this[STATE] = 'begin'
+      this[WRITEENTRY] = null
+      entry.end()
+    }
+
+    return c.length
+  }
+
+  [CONSUMEMETA] (chunk, position) {
+    const entry = this[WRITEENTRY]
+    const ret = this[CONSUMEBODY](chunk, position)
+
+    // if we finished, then the entry is reset
+    if (!this[WRITEENTRY])
+      this[EMITMETA](entry)
+
+    return ret
+  }
+
+  [EMIT] (ev, data, extra) {
+    if (!this[QUEUE].length && !this[READENTRY])
+      this.emit(ev, data, extra)
+    else
+      this[QUEUE].push([ev, data, extra])
+  }
+
+  [EMITMETA] (entry) {
+    this[EMIT]('meta', this[META])
+    switch (entry.type) {
+      case 'ExtendedHeader':
+      case 'OldExtendedHeader':
+        this[EX] = Pax.parse(this[META], this[EX], false)
+        break
+
+      case 'GlobalExtendedHeader':
+        this[GEX] = Pax.parse(this[META], this[GEX], true)
+        break
+
+      case 'NextFileHasLongPath':
+      case 'OldGnuLongPath':
+        this[EX] = this[EX] || Object.create(null)
+        this[EX].path = this[META].replace(/\0.*/, '')
+        break
+
+      case 'NextFileHasLongLinkpath':
+        this[EX] = this[EX] || Object.create(null)
+        this[EX].linkpath = this[META].replace(/\0.*/, '')
+        break
+
+      /* istanbul ignore next */
+      default: throw new Error('unknown meta: ' + entry.type)
+    }
+  }
+
+  abort (msg, error) {
+    this[ABORTED] = true
+    this.warn(msg, error)
+    this.emit('abort', error)
+    this.emit('error', error)
+  }
+
+  write (chunk) {
+    if (this[ABORTED])
+      return
+
+    // first write, might be gzipped
+    if (this[UNZIP] === null && chunk) {
+      if (this[BUFFER]) {
+        chunk = Buffer.concat([this[BUFFER], chunk])
+        this[BUFFER] = null
+      }
+      if (chunk.length < gzipHeader.length) {
+        this[BUFFER] = chunk
+        return true
+      }
+      for (let i = 0; this[UNZIP] === null && i < gzipHeader.length; i++) {
+        if (chunk[i] !== gzipHeader[i])
+          this[UNZIP] = false
+      }
+      if (this[UNZIP] === null) {
+        const ended = this[ENDED]
+        this[ENDED] = false
+        this[UNZIP] = new zlib.Unzip()
+        this[UNZIP].on('data', chunk => this[CONSUMECHUNK](chunk))
+        this[UNZIP].on('error', er =>
+          this.abort(er.message, er))
+        this[UNZIP].on('end', _ => {
+          this[ENDED] = true
+          this[CONSUMECHUNK]()
+        })
+        this[WRITING] = true
+        const ret = this[UNZIP][ended ? 'end' : 'write' ](chunk)
+        this[WRITING] = false
+        return ret
+      }
+    }
+
+    this[WRITING] = true
+    if (this[UNZIP])
+      this[UNZIP].write(chunk)
+    else
+      this[CONSUMECHUNK](chunk)
+    this[WRITING] = false
+
+    // return false if there's a queue, or if the current entry isn't flowing
+    const ret =
+      this[QUEUE].length ? false :
+      this[READENTRY] ? this[READENTRY].flowing :
+      true
+
+    // if we have no queue, then that means a clogged READENTRY
+    if (!ret && !this[QUEUE].length)
+      this[READENTRY].once('drain', _ => this.emit('drain'))
+
+    return ret
+  }
+
+  [BUFFERCONCAT] (c) {
+    if (c && !this[ABORTED])
+      this[BUFFER] = this[BUFFER] ? Buffer.concat([this[BUFFER], c]) : c
+  }
+
+  [MAYBEEND] () {
+    if (this[ENDED] &&
+        !this[EMITTEDEND] &&
+        !this[ABORTED] &&
+        !this[CONSUMING]) {
+      this[EMITTEDEND] = true
+      const entry = this[WRITEENTRY]
+      if (entry && entry.blockRemain) {
+        const have = this[BUFFER] ? this[BUFFER].length : 0
+        this.warn('Truncated input (needed ' + entry.blockRemain +
+                  ' more bytes, only ' + have + ' available)', entry)
+        if (this[BUFFER])
+          entry.write(this[BUFFER])
+        entry.end()
+      }
+      this[EMIT](DONE)
+    }
+  }
+
+  [CONSUMECHUNK] (chunk) {
+    if (this[CONSUMING]) {
+      this[BUFFERCONCAT](chunk)
+    } else if (!chunk && !this[BUFFER]) {
+      this[MAYBEEND]()
+    } else {
+      this[CONSUMING] = true
+      if (this[BUFFER]) {
+        this[BUFFERCONCAT](chunk)
+        const c = this[BUFFER]
+        this[BUFFER] = null
+        this[CONSUMECHUNKSUB](c)
+      } else {
+        this[CONSUMECHUNKSUB](chunk)
+      }
+
+      while (this[BUFFER] && this[BUFFER].length >= 512 && !this[ABORTED]) {
+        const c = this[BUFFER]
+        this[BUFFER] = null
+        this[CONSUMECHUNKSUB](c)
+      }
+      this[CONSUMING] = false
+    }
+
+    if (!this[BUFFER] || this[ENDED])
+      this[MAYBEEND]()
+  }
+
+  [CONSUMECHUNKSUB] (chunk) {
+    // we know that we are in CONSUMING mode, so anything written goes into
+    // the buffer.  Advance the position and put any remainder in the buffer.
+    let position = 0
+    let length = chunk.length
+    while (position + 512 <= length && !this[ABORTED]) {
+      switch (this[STATE]) {
+        case 'begin':
+          this[CONSUMEHEADER](chunk, position)
+          position += 512
+          break
+
+        case 'ignore':
+        case 'body':
+          position += this[CONSUMEBODY](chunk, position)
+          break
+
+        case 'meta':
+          position += this[CONSUMEMETA](chunk, position)
+          break
+
+        /* istanbul ignore next */
+        default:
+          throw new Error('invalid state: ' + this[STATE])
+      }
+    }
+
+    if (position < length) {
+      if (this[BUFFER])
+        this[BUFFER] = Buffer.concat([chunk.slice(position), this[BUFFER]])
+      else
+        this[BUFFER] = chunk.slice(position)
+    }
+  }
+
+  end (chunk) {
+    if (!this[ABORTED]) {
+      if (this[UNZIP])
+        this[UNZIP].end(chunk)
+      else {
+        this[ENDED] = true
+        this.write(chunk)
+      }
+    }
+  }
+})

node_modules/tar/lib/pax.js

@@ -0,0 +1,146 @@
+'use strict'
+const Buffer = require('./buffer.js')
+const Header = require('./header.js')
+const path = require('path')
+
+class Pax {
+  constructor (obj, global) {
+    this.atime = obj.atime || null
+    this.charset = obj.charset || null
+    this.comment = obj.comment || null
+    this.ctime = obj.ctime || null
+    this.gid = obj.gid || null
+    this.gname = obj.gname || null
+    this.linkpath = obj.linkpath || null
+    this.mtime = obj.mtime || null
+    this.path = obj.path || null
+    this.size = obj.size || null
+    this.uid = obj.uid || null
+    this.uname = obj.uname || null
+    this.dev = obj.dev || null
+    this.ino = obj.ino || null
+    this.nlink = obj.nlink || null
+    this.global = global || false
+  }
+
+  encode () {
+    const body = this.encodeBody()
+    if (body === '')
+      return null
+
+    const bodyLen = Buffer.byteLength(body)
+    // round up to 512 bytes
+    // add 512 for header
+    const bufLen = 512 * Math.ceil(1 + bodyLen / 512)
+    const buf = Buffer.allocUnsafe(bufLen)
+
+    // 0-fill the header section, it might not hit every field
+    for (let i = 0; i < 512; i++) {
+      buf[i] = 0
+    }
+
+    new Header({
+      // XXX split the path
+      // then the path should be PaxHeader + basename, but less than 99,
+      // prepend with the dirname
+      path: ('PaxHeader/' + path.basename(this.path)).slice(0, 99),
+      mode: this.mode || 0o644,
+      uid: this.uid || null,
+      gid: this.gid || null,
+      size: bodyLen,
+      mtime: this.mtime || null,
+      type: this.global ? 'GlobalExtendedHeader' : 'ExtendedHeader',
+      linkpath: '',
+      uname: this.uname || '',
+      gname: this.gname || '',
+      devmaj: 0,
+      devmin: 0,
+      atime: this.atime || null,
+      ctime: this.ctime || null
+    }).encode(buf)
+
+    buf.write(body, 512, bodyLen, 'utf8')
+
+    // null pad after the body
+    for (let i = bodyLen + 512; i < buf.length; i++) {
+      buf[i] = 0
+    }
+
+    return buf
+  }
+
+  encodeBody () {
+    return (
+      this.encodeField('path') +
+      this.encodeField('ctime') +
+      this.encodeField('atime') +
+      this.encodeField('dev') +
+      this.encodeField('ino') +
+      this.encodeField('nlink') +
+      this.encodeField('charset') +
+      this.encodeField('comment') +
+      this.encodeField('gid') +
+      this.encodeField('gname') +
+      this.encodeField('linkpath') +
+      this.encodeField('mtime') +
+      this.encodeField('size') +
+      this.encodeField('uid') +
+      this.encodeField('uname')
+    )
+  }
+
+  encodeField (field) {
+    if (this[field] === null || this[field] === undefined)
+      return ''
+    const v = this[field] instanceof Date ? this[field].getTime() / 1000
+      : this[field]
+    const s = ' ' +
+      (field === 'dev' || field === 'ino' || field === 'nlink'
+       ? 'SCHILY.' : '') +
+      field + '=' + v + '\n'
+    const byteLen = Buffer.byteLength(s)
+    // the digits includes the length of the digits in ascii base-10
+    // so if it's 9 characters, then adding 1 for the 9 makes it 10
+    // which makes it 11 chars.
+    let digits = Math.floor(Math.log(byteLen) / Math.log(10)) + 1
+    if (byteLen + digits >= Math.pow(10, digits))
+      digits += 1
+    const len = digits + byteLen
+    return len + s
+  }
+}
+
+Pax.parse = (string, ex, g) => new Pax(merge(parseKV(string), ex), g)
+
+const merge = (a, b) =>
+  b ? Object.keys(a).reduce((s, k) => (s[k] = a[k], s), b) : a
+
+const parseKV = string =>
+  string
+    .replace(/\n$/, '')
+    .split('\n')
+    .reduce(parseKVLine, Object.create(null))
+
+const parseKVLine = (set, line) => {
+  const n = parseInt(line, 10)
+
+  // XXX Values with \n in them will fail this.
+  // Refactor to not be a naive line-by-line parse.
+  if (n !== Buffer.byteLength(line) + 1)
+    return set
+
+  line = line.substr((n + ' ').length)
+  const kv = line.split('=')
+  const k = kv.shift().replace(/^SCHILY\.(dev|ino|nlink)/, '$1')
+  if (!k)
+    return set
+
+  const v = kv.join('=')
+  set[k] = /^([A-Z]+\.)?([mac]|birth|creation)time$/.test(k)
+    ?  new Date(v * 1000)
+    : /^[0-9]+$/.test(v) ? +v
+    : v
+  return set
+}
+
+module.exports = Pax

node_modules/tar/lib/read-entry.js

@@ -0,0 +1,94 @@
+'use strict'
+const types = require('./types.js')
+const MiniPass = require('minipass')
+
+const SLURP = Symbol('slurp')
+module.exports = class ReadEntry extends MiniPass {
+  constructor (header, ex, gex) {
+    super()
+    this.extended = ex
+    this.globalExtended = gex
+    this.header = header
+    this.startBlockSize = 512 * Math.ceil(header.size / 512)
+    this.blockRemain = this.startBlockSize
+    this.remain = header.size
+    this.type = header.type
+    this.meta = false
+    this.ignore = false
+    switch (this.type) {
+      case 'File':
+      case 'OldFile':
+      case 'Link':
+      case 'SymbolicLink':
+      case 'CharacterDevice':
+      case 'BlockDevice':
+      case 'Directory':
+      case 'FIFO':
+      case 'ContiguousFile':
+      case 'GNUDumpDir':
+        break
+
+      case 'NextFileHasLongLinkpath':
+      case 'NextFileHasLongPath':
+      case 'OldGnuLongPath':
+      case 'GlobalExtendedHeader':
+      case 'ExtendedHeader':
+      case 'OldExtendedHeader':
+        this.meta = true
+        break
+
+      // NOTE: gnutar and bsdtar treat unrecognized types as 'File'
+      // it may be worth doing the same, but with a warning.
+      default:
+        this.ignore = true
+    }
+
+    this.path = header.path
+    this.mode = header.mode
+    if (this.mode)
+      this.mode = this.mode & 0o7777
+    this.uid = header.uid
+    this.gid = header.gid
+    this.uname = header.uname
+    this.gname = header.gname
+    this.size = header.size
+    this.mtime = header.mtime
+    this.atime = header.atime
+    this.ctime = header.ctime
+    this.linkpath = header.linkpath
+    this.uname = header.uname
+    this.gname = header.gname
+
+    if (ex) this[SLURP](ex)
+    if (gex) this[SLURP](gex, true)
+  }
+
+  write (data) {
+    const writeLen = data.length
+    if (writeLen > this.blockRemain)
+      throw new Error('writing more to entry than is appropriate')
+
+    const r = this.remain
+    const br = this.blockRemain
+    this.remain = Math.max(0, r - writeLen)
+    this.blockRemain = Math.max(0, br - writeLen)
+    if (this.ignore)
+      return true
+
+    if (r >= writeLen)
+      return super.write(data)
+
+    // r < writeLen
+    return super.write(data.slice(0, r))
+  }
+
+  [SLURP] (ex, global) {
+    for (let k in ex) {
+      // we slurp in everything except for the path attribute in
+      // a global extended header, because that's weird.
+      if (ex[k] !== null && ex[k] !== undefined &&
+          !(global && k === 'path'))
+        this[k] = ex[k]
+    }
+  }
+}

node_modules/tar/lib/replace.js

@@ -0,0 +1,220 @@
+'use strict'
+const Buffer = require('./buffer.js')
+
+// tar -r
+const hlo = require('./high-level-opt.js')
+const Pack = require('./pack.js')
+const Parse = require('./parse.js')
+const fs = require('fs')
+const fsm = require('fs-minipass')
+const t = require('./list.js')
+const path = require('path')
+
+// starting at the head of the file, read a Header
+// If the checksum is invalid, that's our position to start writing
+// If it is, jump forward by the specified size (round up to 512)
+// and try again.
+// Write the new Pack stream starting there.
+
+const Header = require('./header.js')
+
+const r = module.exports = (opt_, files, cb) => {
+  const opt = hlo(opt_)
+
+  if (!opt.file)
+    throw new TypeError('file is required')
+
+  if (opt.gzip)
+    throw new TypeError('cannot append to compressed archives')
+
+  if (!files || !Array.isArray(files) || !files.length)
+    throw new TypeError('no files or directories specified')
+
+  files = Array.from(files)
+
+  return opt.sync ? replaceSync(opt, files)
+    : replace(opt, files, cb)
+}
+
+const replaceSync = (opt, files) => {
+  const p = new Pack.Sync(opt)
+
+  let threw = true
+  let fd
+  let position
+
+  try {
+    try {
+      fd = fs.openSync(opt.file, 'r+')
+    } catch (er) {
+      if (er.code === 'ENOENT')
+        fd = fs.openSync(opt.file, 'w+')
+      else
+        throw er
+    }
+
+    const st = fs.fstatSync(fd)
+    const headBuf = Buffer.alloc(512)
+
+    POSITION: for (position = 0; position < st.size; position += 512) {
+      for (let bufPos = 0, bytes = 0; bufPos < 512; bufPos += bytes) {
+        bytes = fs.readSync(
+          fd, headBuf, bufPos, headBuf.length - bufPos, position + bufPos
+        )
+
+        if (position === 0 && headBuf[0] === 0x1f && headBuf[1] === 0x8b)
+          throw new Error('cannot append to compressed archives')
+
+        if (!bytes)
+          break POSITION
+      }
+
+      let h = new Header(headBuf)
+      if (!h.cksumValid)
+        break
+      let entryBlockSize = 512 * Math.ceil(h.size / 512)
+      if (position + entryBlockSize + 512 > st.size)
+        break
+      // the 512 for the header we just parsed will be added as well
+      // also jump ahead all the blocks for the body
+      position += entryBlockSize
+      if (opt.mtimeCache)
+        opt.mtimeCache.set(h.path, h.mtime)
+    }
+    threw = false
+
+    streamSync(opt, p, position, fd, files)
+  } finally {
+    if (threw)
+      try { fs.closeSync(fd) } catch (er) {}
+  }
+}
+
+const streamSync = (opt, p, position, fd, files) => {
+  const stream = new fsm.WriteStreamSync(opt.file, {
+    fd: fd,
+    start: position
+  })
+  p.pipe(stream)
+  addFilesSync(p, files)
+}
+
+const replace = (opt, files, cb) => {
+  files = Array.from(files)
+  const p = new Pack(opt)
+
+  const getPos = (fd, size, cb_) => {
+    const cb = (er, pos) => {
+      if (er)
+        fs.close(fd, _ => cb_(er))
+      else
+        cb_(null, pos)
+    }
+
+    let position = 0
+    if (size === 0)
+      return cb(null, 0)
+
+    let bufPos = 0
+    const headBuf = Buffer.alloc(512)
+    const onread = (er, bytes) => {
+      if (er)
+        return cb(er)
+      bufPos += bytes
+      if (bufPos < 512 && bytes)
+        return fs.read(
+          fd, headBuf, bufPos, headBuf.length - bufPos,
+          position + bufPos, onread
+        )
+
+      if (position === 0 && headBuf[0] === 0x1f && headBuf[1] === 0x8b)
+        return cb(new Error('cannot append to compressed archives'))
+
+      // truncated header
+      if (bufPos < 512)
+        return cb(null, position)
+
+      const h = new Header(headBuf)
+      if (!h.cksumValid)
+        return cb(null, position)
+
+      const entryBlockSize = 512 * Math.ceil(h.size / 512)
+      if (position + entryBlockSize + 512 > size)
+        return cb(null, position)
+
+      position += entryBlockSize + 512
+      if (position >= size)
+        return cb(null, position)
+
+      if (opt.mtimeCache)
+        opt.mtimeCache.set(h.path, h.mtime)
+      bufPos = 0
+      fs.read(fd, headBuf, 0, 512, position, onread)
+    }
+    fs.read(fd, headBuf, 0, 512, position, onread)
+  }
+
+  const promise = new Promise((resolve, reject) => {
+    p.on('error', reject)
+    let flag = 'r+'
+    const onopen = (er, fd) => {
+      if (er && er.code === 'ENOENT' && flag === 'r+') {
+        flag = 'w+'
+        return fs.open(opt.file, flag, onopen)
+      }
+
+      if (er)
+        return reject(er)
+
+      fs.fstat(fd, (er, st) => {
+        if (er)
+          return reject(er)
+        getPos(fd, st.size, (er, position) => {
+          if (er)
+            return reject(er)
+          const stream = new fsm.WriteStream(opt.file, {
+            fd: fd,
+            start: position
+          })
+          p.pipe(stream)
+          stream.on('error', reject)
+          stream.on('close', resolve)
+          addFilesAsync(p, files)
+        })
+      })
+    }
+    fs.open(opt.file, flag, onopen)
+  })
+
+  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()
+}

node_modules/tar/lib/types.js

@@ -0,0 +1,44 @@
+'use strict'
+// map types from key to human-friendly name
+exports.name = new Map([
+  ['0', 'File'],
+  // same as File
+  ['', 'OldFile'],
+  ['1', 'Link'],
+  ['2', 'SymbolicLink'],
+  // Devices and FIFOs aren't fully supported
+  // they are parsed, but skipped when unpacking
+  ['3', 'CharacterDevice'],
+  ['4', 'BlockDevice'],
+  ['5', 'Directory'],
+  ['6', 'FIFO'],
+  // same as File
+  ['7', 'ContiguousFile'],
+  // pax headers
+  ['g', 'GlobalExtendedHeader'],
+  ['x', 'ExtendedHeader'],
+  // vendor-specific stuff
+  // skip
+  ['A', 'SolarisACL'],
+  // like 5, but with data, which should be skipped
+  ['D', 'GNUDumpDir'],
+  // metadata only, skip
+  ['I', 'Inode'],
+  // data = link path of next file
+  ['K', 'NextFileHasLongLinkpath'],
+  // data = path of next file
+  ['L', 'NextFileHasLongPath'],
+  // skip
+  ['M', 'ContinuationFile'],
+  // like L
+  ['N', 'OldGnuLongPath'],
+  // skip
+  ['S', 'SparseFile'],
+  // skip
+  ['V', 'TapeVolumeHeader'],
+  // like x
+  ['X', 'OldExtendedHeader']
+])
+
+// map the other direction
+exports.code = new Map(Array.from(exports.name).map(kv => [kv[1], kv[0]]))

node_modules/tar/lib/unpack.js

@@ -0,0 +1,615 @@
+'use strict'
+
+const assert = require('assert')
+const EE = require('events').EventEmitter
+const Parser = require('./parse.js')
+const fs = require('fs')
+const fsm = require('fs-minipass')
+const path = require('path')
+const mkdir = require('./mkdir.js')
+const mkdirSync = mkdir.sync
+const wc = require('./winchars.js')
+
+const ONENTRY = Symbol('onEntry')
+const CHECKFS = Symbol('checkFs')
+const ISREUSABLE = Symbol('isReusable')
+const MAKEFS = Symbol('makeFs')
+const FILE = Symbol('file')
+const DIRECTORY = Symbol('directory')
+const LINK = Symbol('link')
+const SYMLINK = Symbol('symlink')
+const HARDLINK = Symbol('hardlink')
+const UNSUPPORTED = Symbol('unsupported')
+const UNKNOWN = Symbol('unknown')
+const CHECKPATH = Symbol('checkPath')
+const MKDIR = Symbol('mkdir')
+const ONERROR = Symbol('onError')
+const PENDING = Symbol('pending')
+const PEND = Symbol('pend')
+const UNPEND = Symbol('unpend')
+const ENDED = Symbol('ended')
+const MAYBECLOSE = Symbol('maybeClose')
+const SKIP = Symbol('skip')
+const DOCHOWN = Symbol('doChown')
+const UID = Symbol('uid')
+const GID = Symbol('gid')
+const crypto = require('crypto')
+
+// Unlinks on Windows are not atomic.
+//
+// This means that if you have a file entry, followed by another
+// file entry with an identical name, and you cannot re-use the file
+// (because it's a hardlink, or because unlink:true is set, or it's
+// Windows, which does not have useful nlink values), then the unlink
+// will be committed to the disk AFTER the new file has been written
+// over the old one, deleting the new file.
+//
+// To work around this, on Windows systems, we rename the file and then
+// delete the renamed file.  It's a sloppy kludge, but frankly, I do not
+// know of a better way to do this, given windows' non-atomic unlink
+// semantics.
+//
+// See: https://github.com/npm/node-tar/issues/183
+/* istanbul ignore next */
+const unlinkFile = (path, cb) => {
+  if (process.platform !== 'win32')
+    return fs.unlink(path, cb)
+
+  const name = path + '.DELETE.' + crypto.randomBytes(16).toString('hex')
+  fs.rename(path, name, er => {
+    if (er)
+      return cb(er)
+    fs.unlink(name, cb)
+  })
+}
+
+/* istanbul ignore next */
+const unlinkFileSync = path => {
+  if (process.platform !== 'win32')
+    return fs.unlinkSync(path)
+
+  const name = path + '.DELETE.' + crypto.randomBytes(16).toString('hex')
+  fs.renameSync(path, name)
+  fs.unlinkSync(name)
+}
+
+// this.gid, entry.gid, this.processUid
+const uint32 = (a, b, c) =>
+  a === a >>> 0 ? a
+  : b === b >>> 0 ? b
+  : c
+
+class Unpack extends Parser {
+  constructor (opt) {
+    if (!opt)
+      opt = {}
+
+    opt.ondone = _ => {
+      this[ENDED] = true
+      this[MAYBECLOSE]()
+    }
+
+    super(opt)
+
+    this.transform = typeof opt.transform === 'function' ? opt.transform : null
+
+    this.writable = true
+    this.readable = false
+
+    this[PENDING] = 0
+    this[ENDED] = false
+
+    this.dirCache = opt.dirCache || new Map()
+
+    if (typeof opt.uid === 'number' || typeof opt.gid === 'number') {
+      // need both or neither
+      if (typeof opt.uid !== 'number' || typeof opt.gid !== 'number')
+        throw new TypeError('cannot set owner without number uid and gid')
+      if (opt.preserveOwner)
+        throw new TypeError(
+          'cannot preserve owner in archive and also set owner explicitly')
+      this.uid = opt.uid
+      this.gid = opt.gid
+      this.setOwner = true
+    } else {
+      this.uid = null
+      this.gid = null
+      this.setOwner = false
+    }
+
+    // default true for root
+    if (opt.preserveOwner === undefined && typeof opt.uid !== 'number')
+      this.preserveOwner = process.getuid && process.getuid() === 0
+    else
+      this.preserveOwner = !!opt.preserveOwner
+
+    this.processUid = (this.preserveOwner || this.setOwner) && process.getuid ?
+      process.getuid() : null
+    this.processGid = (this.preserveOwner || this.setOwner) && process.getgid ?
+      process.getgid() : null
+
+    // mostly just for testing, but useful in some cases.
+    // Forcibly trigger a chown on every entry, no matter what
+    this.forceChown = opt.forceChown === true
+
+    // turn ><?| in filenames into 0xf000-higher encoded forms
+    this.win32 = !!opt.win32 || process.platform === 'win32'
+
+    // do not unpack over files that are newer than what's in the archive
+    this.newer = !!opt.newer
+
+    // do not unpack over ANY files
+    this.keep = !!opt.keep
+
+    // do not set mtime/atime of extracted entries
+    this.noMtime = !!opt.noMtime
+
+    // allow .., absolute path entries, and unpacking through symlinks
+    // without this, warn and skip .., relativize absolutes, and error
+    // on symlinks in extraction path
+    this.preservePaths = !!opt.preservePaths
+
+    // unlink files and links before writing. This breaks existing hard
+    // links, and removes symlink directories rather than erroring
+    this.unlink = !!opt.unlink
+
+    this.cwd = path.resolve(opt.cwd || process.cwd())
+    this.strip = +opt.strip || 0
+    this.processUmask = process.umask()
+    this.umask = typeof opt.umask === 'number' ? opt.umask : this.processUmask
+    // default mode for dirs created as parents
+    this.dmode = opt.dmode || (0o0777 & (~this.umask))
+    this.fmode = opt.fmode || (0o0666 & (~this.umask))
+    this.on('entry', entry => this[ONENTRY](entry))
+  }
+
+  [MAYBECLOSE] () {
+    if (this[ENDED] && this[PENDING] === 0) {
+      this.emit('prefinish')
+      this.emit('finish')
+      this.emit('end')
+      this.emit('close')
+    }
+  }
+
+  [CHECKPATH] (entry) {
+    if (this.strip) {
+      const parts = entry.path.split(/\/|\\/)
+      if (parts.length < this.strip)
+        return false
+      entry.path = parts.slice(this.strip).join('/')
+    }
+
+    if (!this.preservePaths) {
+      const p = entry.path
+      if (p.match(/(^|\/|\\)\.\.(\\|\/|$)/)) {
+        this.warn('path contains \'..\'', p)
+        return false
+      }
+
+      // absolutes on posix are also absolutes on win32
+      // so we only need to test this one to get both
+      if (path.win32.isAbsolute(p)) {
+        const parsed = path.win32.parse(p)
+        this.warn('stripping ' + parsed.root + ' from absolute path', p)
+        entry.path = p.substr(parsed.root.length)
+      }
+    }
+
+    // only encode : chars that aren't drive letter indicators
+    if (this.win32) {
+      const parsed = path.win32.parse(entry.path)
+      entry.path = parsed.root === '' ? wc.encode(entry.path)
+        : parsed.root + wc.encode(entry.path.substr(parsed.root.length))
+    }
+
+    if (path.isAbsolute(entry.path))
+      entry.absolute = entry.path
+    else
+      entry.absolute = path.resolve(this.cwd, entry.path)
+
+    return true
+  }
+
+  [ONENTRY] (entry) {
+    if (!this[CHECKPATH](entry))
+      return entry.resume()
+
+    assert.equal(typeof entry.absolute, 'string')
+
+    switch (entry.type) {
+      case 'Directory':
+      case 'GNUDumpDir':
+        if (entry.mode)
+          entry.mode = entry.mode | 0o700
+
+      case 'File':
+      case 'OldFile':
+      case 'ContiguousFile':
+      case 'Link':
+      case 'SymbolicLink':
+        return this[CHECKFS](entry)
+
+      case 'CharacterDevice':
+      case 'BlockDevice':
+      case 'FIFO':
+        return this[UNSUPPORTED](entry)
+    }
+  }
+
+  [ONERROR] (er, entry) {
+    // Cwd has to exist, or else nothing works. That's serious.
+    // Other errors are warnings, which raise the error in strict
+    // mode, but otherwise continue on.
+    if (er.name === 'CwdError')
+      this.emit('error', er)
+    else {
+      this.warn(er.message, er)
+      this[UNPEND]()
+      entry.resume()
+    }
+  }
+
+  [MKDIR] (dir, mode, cb) {
+    mkdir(dir, {
+      uid: this.uid,
+      gid: this.gid,
+      processUid: this.processUid,
+      processGid: this.processGid,
+      umask: this.processUmask,
+      preserve: this.preservePaths,
+      unlink: this.unlink,
+      cache: this.dirCache,
+      cwd: this.cwd,
+      mode: mode
+    }, cb)
+  }
+
+  [DOCHOWN] (entry) {
+    // in preserve owner mode, chown if the entry doesn't match process
+    // in set owner mode, chown if setting doesn't match process
+    return this.forceChown ||
+      this.preserveOwner &&
+      ( typeof entry.uid === 'number' && entry.uid !== this.processUid ||
+        typeof entry.gid === 'number' && entry.gid !== this.processGid )
+      ||
+      ( typeof this.uid === 'number' && this.uid !== this.processUid ||
+        typeof this.gid === 'number' && this.gid !== this.processGid )
+  }
+
+  [UID] (entry) {
+    return uint32(this.uid, entry.uid, this.processUid)
+  }
+
+  [GID] (entry) {
+    return uint32(this.gid, entry.gid, this.processGid)
+  }
+
+  [FILE] (entry) {
+    const mode = entry.mode & 0o7777 || this.fmode
+    const stream = new fsm.WriteStream(entry.absolute, {
+      mode: mode,
+      autoClose: false
+    })
+    stream.on('error', er => this[ONERROR](er, entry))
+
+    let actions = 1
+    const done = er => {
+      if (er)
+        return this[ONERROR](er, entry)
+
+      if (--actions === 0)
+        fs.close(stream.fd, _ => this[UNPEND]())
+    }
+
+    stream.on('finish', _ => {
+      // if futimes fails, try utimes
+      // if utimes fails, fail with the original error
+      // same for fchown/chown
+      const abs = entry.absolute
+      const fd = stream.fd
+
+      if (entry.mtime && !this.noMtime) {
+        actions++
+        const atime = entry.atime || new Date()
+        const mtime = entry.mtime
+        fs.futimes(fd, atime, mtime, er =>
+          er ? fs.utimes(abs, atime, mtime, er2 => done(er2 && er))
+          : done())
+      }
+
+      if (this[DOCHOWN](entry)) {
+        actions++
+        const uid = this[UID](entry)
+        const gid = this[GID](entry)
+        fs.fchown(fd, uid, gid, er =>
+          er ? fs.chown(abs, uid, gid, er2 => done(er2 && er))
+          : done())
+      }
+
+      done()
+    })
+
+    const tx = this.transform ? this.transform(entry) || entry : entry
+    if (tx !== entry) {
+      tx.on('error', er => this[ONERROR](er, entry))
+      entry.pipe(tx)
+    }
+    tx.pipe(stream)
+  }
+
+  [DIRECTORY] (entry) {
+    const mode = entry.mode & 0o7777 || this.dmode
+    this[MKDIR](entry.absolute, mode, er => {
+      if (er)
+        return this[ONERROR](er, entry)
+
+      let actions = 1
+      const done = _ => {
+        if (--actions === 0) {
+          this[UNPEND]()
+          entry.resume()
+        }
+      }
+
+      if (entry.mtime && !this.noMtime) {
+        actions++
+        fs.utimes(entry.absolute, entry.atime || new Date(), entry.mtime, done)
+      }
+
+      if (this[DOCHOWN](entry)) {
+        actions++
+        fs.chown(entry.absolute, this[UID](entry), this[GID](entry), done)
+      }
+
+      done()
+    })
+  }
+
+  [UNSUPPORTED] (entry) {
+    this.warn('unsupported entry type: ' + entry.type, entry)
+    entry.resume()
+  }
+
+  [SYMLINK] (entry) {
+    this[LINK](entry, entry.linkpath, 'symlink')
+  }
+
+  [HARDLINK] (entry) {
+    this[LINK](entry, path.resolve(this.cwd, entry.linkpath), 'link')
+  }
+
+  [PEND] () {
+    this[PENDING]++
+  }
+
+  [UNPEND] () {
+    this[PENDING]--
+    this[MAYBECLOSE]()
+  }
+
+  [SKIP] (entry) {
+    this[UNPEND]()
+    entry.resume()
+  }
+
+  // Check if we can reuse an existing filesystem entry safely and
+  // overwrite it, rather than unlinking and recreating
+  // Windows doesn't report a useful nlink, so we just never reuse entries
+  [ISREUSABLE] (entry, st) {
+    return entry.type === 'File' &&
+      !this.unlink &&
+      st.isFile() &&
+      st.nlink <= 1 &&
+      process.platform !== 'win32'
+  }
+
+  // check if a thing is there, and if so, try to clobber it
+  [CHECKFS] (entry) {
+    this[PEND]()
+    this[MKDIR](path.dirname(entry.absolute), this.dmode, er => {
+      if (er)
+        return this[ONERROR](er, entry)
+      fs.lstat(entry.absolute, (er, st) => {
+        if (st && (this.keep || this.newer && st.mtime > entry.mtime))
+          this[SKIP](entry)
+        else if (er || this[ISREUSABLE](entry, st))
+          this[MAKEFS](null, entry)
+        else if (st.isDirectory()) {
+          if (entry.type === 'Directory') {
+            if (!entry.mode || (st.mode & 0o7777) === entry.mode)
+              this[MAKEFS](null, entry)
+            else
+              fs.chmod(entry.absolute, entry.mode, er => this[MAKEFS](er, entry))
+          } else
+            fs.rmdir(entry.absolute, er => this[MAKEFS](er, entry))
+        } else
+          unlinkFile(entry.absolute, er => this[MAKEFS](er, entry))
+      })
+    })
+  }
+
+  [MAKEFS] (er, entry) {
+    if (er)
+      return this[ONERROR](er, entry)
+
+    switch (entry.type) {
+      case 'File':
+      case 'OldFile':
+      case 'ContiguousFile':
+        return this[FILE](entry)
+
+      case 'Link':
+        return this[HARDLINK](entry)
+
+      case 'SymbolicLink':
+        return this[SYMLINK](entry)
+
+      case 'Directory':
+      case 'GNUDumpDir':
+        return this[DIRECTORY](entry)
+    }
+  }
+
+  [LINK] (entry, linkpath, link) {
+    // XXX: get the type ('file' or 'dir') for windows
+    fs[link](linkpath, entry.absolute, er => {
+      if (er)
+        return this[ONERROR](er, entry)
+      this[UNPEND]()
+      entry.resume()
+    })
+  }
+}
+
+class UnpackSync extends Unpack {
+  constructor (opt) {
+    super(opt)
+  }
+
+  [CHECKFS] (entry) {
+    const er = this[MKDIR](path.dirname(entry.absolute), this.dmode)
+    if (er)
+      return this[ONERROR](er, entry)
+    try {
+      const st = fs.lstatSync(entry.absolute)
+      if (this.keep || this.newer && st.mtime > entry.mtime)
+        return this[SKIP](entry)
+      else if (this[ISREUSABLE](entry, st))
+        return this[MAKEFS](null, entry)
+      else {
+        try {
+          if (st.isDirectory()) {
+            if (entry.type === 'Directory') {
+              if (entry.mode && (st.mode & 0o7777) !== entry.mode)
+                fs.chmodSync(entry.absolute, entry.mode)
+            } else
+              fs.rmdirSync(entry.absolute)
+          } else
+            unlinkFileSync(entry.absolute)
+          return this[MAKEFS](null, entry)
+        } catch (er) {
+          return this[ONERROR](er, entry)
+        }
+      }
+    } catch (er) {
+      return this[MAKEFS](null, entry)
+    }
+  }
+
+  [FILE] (entry) {
+    const mode = entry.mode & 0o7777 || this.fmode
+
+    const oner = er => {
+      try { fs.closeSync(fd) } catch (_) {}
+      if (er)
+        this[ONERROR](er, entry)
+    }
+
+    let stream
+    let fd
+    try {
+      fd = fs.openSync(entry.absolute, 'w', mode)
+    } catch (er) {
+      return oner(er)
+    }
+    const tx = this.transform ? this.transform(entry) || entry : entry
+    if (tx !== entry) {
+      tx.on('error', er => this[ONERROR](er, entry))
+      entry.pipe(tx)
+    }
+
+    tx.on('data', chunk => {
+      try {
+        fs.writeSync(fd, chunk, 0, chunk.length)
+      } catch (er) {
+        oner(er)
+      }
+    })
+
+    tx.on('end', _ => {
+      let er = null
+      // try both, falling futimes back to utimes
+      // if either fails, handle the first error
+      if (entry.mtime && !this.noMtime) {
+        const atime = entry.atime || new Date()
+        const mtime = entry.mtime
+        try {
+          fs.futimesSync(fd, atime, mtime)
+        } catch (futimeser) {
+          try {
+            fs.utimesSync(entry.absolute, atime, mtime)
+          } catch (utimeser) {
+            er = futimeser
+          }
+        }
+      }
+
+      if (this[DOCHOWN](entry)) {
+        const uid = this[UID](entry)
+        const gid = this[GID](entry)
+
+        try {
+          fs.fchownSync(fd, uid, gid)
+        } catch (fchowner) {
+          try {
+            fs.chownSync(entry.absolute, uid, gid)
+          } catch (chowner) {
+            er = er || fchowner
+          }
+        }
+      }
+
+      oner(er)
+    })
+  }
+
+  [DIRECTORY] (entry) {
+    const mode = entry.mode & 0o7777 || this.dmode
+    const er = this[MKDIR](entry.absolute, mode)
+    if (er)
+      return this[ONERROR](er, entry)
+    if (entry.mtime && !this.noMtime) {
+      try {
+        fs.utimesSync(entry.absolute, entry.atime || new Date(), entry.mtime)
+      } catch (er) {}
+    }
+    if (this[DOCHOWN](entry)) {
+      try {
+        fs.chownSync(entry.absolute, this[UID](entry), this[GID](entry))
+      } catch (er) {}
+    }
+    entry.resume()
+  }
+
+  [MKDIR] (dir, mode) {
+    try {
+      return mkdir.sync(dir, {
+        uid: this.uid,
+        gid: this.gid,
+        processUid: this.processUid,
+        processGid: this.processGid,
+        umask: this.processUmask,
+        preserve: this.preservePaths,
+        unlink: this.unlink,
+        cache: this.dirCache,
+        cwd: this.cwd,
+        mode: mode
+      })
+    } catch (er) {
+      return er
+    }
+  }
+
+  [LINK] (entry, linkpath, link) {
+    try {
+      fs[link + 'Sync'](linkpath, entry.absolute)
+      entry.resume()
+    } catch (er) {
+      return this[ONERROR](er, entry)
+    }
+  }
+}
+
+Unpack.Sync = UnpackSync
+module.exports = Unpack

node_modules/tar/lib/update.js

@@ -0,0 +1,36 @@
+'use strict'
+
+// tar -u
+
+const hlo = require('./high-level-opt.js')
+const r = require('./replace.js')
+// just call tar.r with the filter and mtimeCache
+
+const u = module.exports = (opt_, files, cb) => {
+  const opt = hlo(opt_)
+
+  if (!opt.file)
+    throw new TypeError('file is required')
+
+  if (opt.gzip)
+    throw new TypeError('cannot append to compressed archives')
+
+  if (!files || !Array.isArray(files) || !files.length)
+    throw new TypeError('no files or directories specified')
+
+  files = Array.from(files)
+
+  mtimeFilter(opt)
+  return r(opt, files, cb)
+}
+
+const mtimeFilter = opt => {
+  const filter = opt.filter
+
+  if (!opt.mtimeCache)
+    opt.mtimeCache = new Map()
+
+  opt.filter = filter ? (path, stat) =>
+    filter(path, stat) && !(opt.mtimeCache.get(path) > stat.mtime)
+    : (path, stat) => !(opt.mtimeCache.get(path) > stat.mtime)
+}

node_modules/tar/lib/warn-mixin.js

@@ -0,0 +1,14 @@
+'use strict'
+module.exports = Base => class extends Base {
+  warn (msg, data) {
+    if (!this.strict)
+      this.emit('warn', msg, data)
+    else if (data instanceof Error)
+      this.emit('error', data)
+    else {
+      const er = new Error(msg)
+      er.data = data
+      this.emit('error', er)
+    }
+  }
+}

node_modules/tar/lib/winchars.js

@@ -0,0 +1,23 @@
+'use strict'
+
+// When writing files on Windows, translate the characters to their
+// 0xf000 higher-encoded versions.
+
+const raw = [
+  '|',
+  '<',
+  '>',
+  '?',
+  ':'
+]
+
+const win = raw.map(char =>
+  String.fromCharCode(0xf000 + char.charCodeAt(0)))
+
+const toWin = new Map(raw.map((char, i) => [char, win[i]]))
+const toRaw = new Map(win.map((char, i) => [char, raw[i]]))
+
+module.exports = {
+  encode: s => raw.reduce((s, c) => s.split(c).join(toWin.get(c)), s),
+  decode: s => win.reduce((s, c) => s.split(c).join(toRaw.get(c)), s)
+}

node_modules/tar/lib/write-entry.js

@@ -0,0 +1,412 @@
+'use strict'
+const Buffer = require('./buffer.js')
+const MiniPass = require('minipass')
+const Pax = require('./pax.js')
+const Header = require('./header.js')
+const ReadEntry = require('./read-entry.js')
+const fs = require('fs')
+const path = require('path')
+
+const types = require('./types.js')
+const maxReadSize = 16 * 1024 * 1024
+const PROCESS = Symbol('process')
+const FILE = Symbol('file')
+const DIRECTORY = Symbol('directory')
+const SYMLINK = Symbol('symlink')
+const HARDLINK = Symbol('hardlink')
+const HEADER = Symbol('header')
+const READ = Symbol('read')
+const LSTAT = Symbol('lstat')
+const ONLSTAT = Symbol('onlstat')
+const ONREAD = Symbol('onread')
+const ONREADLINK = Symbol('onreadlink')
+const OPENFILE = Symbol('openfile')
+const ONOPENFILE = Symbol('onopenfile')
+const CLOSE = Symbol('close')
+const MODE = Symbol('mode')
+const warner = require('./warn-mixin.js')
+const winchars = require('./winchars.js')
+
+const modeFix = require('./mode-fix.js')
+
+const WriteEntry = warner(class WriteEntry extends MiniPass {
+  constructor (p, opt) {
+    opt = opt || {}
+    super(opt)
+    if (typeof p !== 'string')
+      throw new TypeError('path is required')
+    this.path = p
+    // suppress atime, ctime, uid, gid, uname, gname
+    this.portable = !!opt.portable
+    // until node has builtin pwnam functions, this'll have to do
+    this.myuid = process.getuid && process.getuid()
+    this.myuser = process.env.USER || ''
+    this.maxReadSize = opt.maxReadSize || maxReadSize
+    this.linkCache = opt.linkCache || new Map()
+    this.statCache = opt.statCache || new Map()
+    this.preservePaths = !!opt.preservePaths
+    this.cwd = opt.cwd || process.cwd()
+    this.strict = !!opt.strict
+    this.noPax = !!opt.noPax
+    this.noMtime = !!opt.noMtime
+    this.mtime = opt.mtime || null
+
+    if (typeof opt.onwarn === 'function')
+      this.on('warn', opt.onwarn)
+
+    if (!this.preservePaths && path.win32.isAbsolute(p)) {
+      // absolutes on posix are also absolutes on win32
+      // so we only need to test this one to get both
+      const parsed = path.win32.parse(p)
+      this.warn('stripping ' + parsed.root + ' from absolute path', p)
+      this.path = p.substr(parsed.root.length)
+    }
+
+    this.win32 = !!opt.win32 || process.platform === 'win32'
+    if (this.win32) {
+      this.path = winchars.decode(this.path.replace(/\\/g, '/'))
+      p = p.replace(/\\/g, '/')
+    }
+
+    this.absolute = opt.absolute || path.resolve(this.cwd, p)
+
+    if (this.path === '')
+      this.path = './'
+
+    if (this.statCache.has(this.absolute))
+      this[ONLSTAT](this.statCache.get(this.absolute))
+    else
+      this[LSTAT]()
+  }
+
+  [LSTAT] () {
+    fs.lstat(this.absolute, (er, stat) => {
+      if (er)
+        return this.emit('error', er)
+      this[ONLSTAT](stat)
+    })
+  }
+
+  [ONLSTAT] (stat) {
+    this.statCache.set(this.absolute, stat)
+    this.stat = stat
+    if (!stat.isFile())
+      stat.size = 0
+    this.type = getType(stat)
+    this.emit('stat', stat)
+    this[PROCESS]()
+  }
+
+  [PROCESS] () {
+    switch (this.type) {
+      case 'File': return this[FILE]()
+      case 'Directory': return this[DIRECTORY]()
+      case 'SymbolicLink': return this[SYMLINK]()
+      // unsupported types are ignored.
+      default: return this.end()
+    }
+  }
+
+  [MODE] (mode) {
+    return modeFix(mode, this.type === 'Directory')
+  }
+
+  [HEADER] () {
+    if (this.type === 'Directory' && this.portable)
+      this.noMtime = true
+
+    this.header = new Header({
+      path: this.path,
+      linkpath: this.linkpath,
+      // only the permissions and setuid/setgid/sticky bitflags
+      // not the higher-order bits that specify file type
+      mode: this[MODE](this.stat.mode),
+      uid: this.portable ? null : this.stat.uid,
+      gid: this.portable ? null : this.stat.gid,
+      size: this.stat.size,
+      mtime: this.noMtime ? null : this.mtime || this.stat.mtime,
+      type: this.type,
+      uname: this.portable ? null :
+        this.stat.uid === this.myuid ? this.myuser : '',
+      atime: this.portable ? null : this.stat.atime,
+      ctime: this.portable ? null : this.stat.ctime
+    })
+
+    if (this.header.encode() && !this.noPax)
+      this.write(new Pax({
+        atime: this.portable ? null : this.header.atime,
+        ctime: this.portable ? null : this.header.ctime,
+        gid: this.portable ? null : this.header.gid,
+        mtime: this.noMtime ? null : this.mtime || this.header.mtime,
+        path: this.path,
+        linkpath: this.linkpath,
+        size: this.header.size,
+        uid: this.portable ? null : this.header.uid,
+        uname: this.portable ? null : this.header.uname,
+        dev: this.portable ? null : this.stat.dev,
+        ino: this.portable ? null : this.stat.ino,
+        nlink: this.portable ? null : this.stat.nlink
+      }).encode())
+    this.write(this.header.block)
+  }
+
+  [DIRECTORY] () {
+    if (this.path.substr(-1) !== '/')
+      this.path += '/'
+    this.stat.size = 0
+    this[HEADER]()
+    this.end()
+  }
+
+  [SYMLINK] () {
+    fs.readlink(this.absolute, (er, linkpath) => {
+      if (er)
+        return this.emit('error', er)
+      this[ONREADLINK](linkpath)
+    })
+  }
+
+  [ONREADLINK] (linkpath) {
+    this.linkpath = linkpath
+    this[HEADER]()
+    this.end()
+  }
+
+  [HARDLINK] (linkpath) {
+    this.type = 'Link'
+    this.linkpath = path.relative(this.cwd, linkpath)
+    this.stat.size = 0
+    this[HEADER]()
+    this.end()
+  }
+
+  [FILE] () {
+    if (this.stat.nlink > 1) {
+      const linkKey = this.stat.dev + ':' + this.stat.ino
+      if (this.linkCache.has(linkKey)) {
+        const linkpath = this.linkCache.get(linkKey)
+        if (linkpath.indexOf(this.cwd) === 0)
+          return this[HARDLINK](linkpath)
+      }
+      this.linkCache.set(linkKey, this.absolute)
+    }
+
+    this[HEADER]()
+    if (this.stat.size === 0)
+      return this.end()
+
+    this[OPENFILE]()
+  }
+
+  [OPENFILE] () {
+    fs.open(this.absolute, 'r', (er, fd) => {
+      if (er)
+        return this.emit('error', er)
+      this[ONOPENFILE](fd)
+    })
+  }
+
+  [ONOPENFILE] (fd) {
+    const blockLen = 512 * Math.ceil(this.stat.size / 512)
+    const bufLen = Math.min(blockLen, this.maxReadSize)
+    const buf = Buffer.allocUnsafe(bufLen)
+    this[READ](fd, buf, 0, buf.length, 0, this.stat.size, blockLen)
+  }
+
+  [READ] (fd, buf, offset, length, pos, remain, blockRemain) {
+    fs.read(fd, buf, offset, length, pos, (er, bytesRead) => {
+      if (er)
+        return this[CLOSE](fd, _ => this.emit('error', er))
+      this[ONREAD](fd, buf, offset, length, pos, remain, blockRemain, bytesRead)
+    })
+  }
+
+  [CLOSE] (fd, cb) {
+    fs.close(fd, cb)
+  }
+
+  [ONREAD] (fd, buf, offset, length, pos, remain, blockRemain, bytesRead) {
+    if (bytesRead <= 0 && remain > 0) {
+      const er = new Error('unexpected EOF')
+      er.path = this.absolute
+      er.syscall = 'read'
+      er.code = 'EOF'
+      this.emit('error', er)
+    }
+
+    // null out the rest of the buffer, if we could fit the block padding
+    if (bytesRead === remain) {
+      for (let i = bytesRead; i < length && bytesRead < blockRemain; i++) {
+        buf[i + offset] = 0
+        bytesRead ++
+        remain ++
+      }
+    }
+
+    const writeBuf = offset === 0 && bytesRead === buf.length ?
+      buf : buf.slice(offset, offset + bytesRead)
+    remain -= bytesRead
+    blockRemain -= bytesRead
+    pos += bytesRead
+    offset += bytesRead
+
+    this.write(writeBuf)
+
+    if (!remain) {
+      if (blockRemain)
+        this.write(Buffer.alloc(blockRemain))
+      this.end()
+      this[CLOSE](fd, _ => _)
+      return
+    }
+
+    if (offset >= length) {
+      buf = Buffer.allocUnsafe(length)
+      offset = 0
+    }
+    length = buf.length - offset
+    this[READ](fd, buf, offset, length, pos, remain, blockRemain)
+  }
+})
+
+class WriteEntrySync extends WriteEntry {
+  constructor (path, opt) {
+    super(path, opt)
+  }
+
+  [LSTAT] () {
+    this[ONLSTAT](fs.lstatSync(this.absolute))
+  }
+
+  [SYMLINK] () {
+    this[ONREADLINK](fs.readlinkSync(this.absolute))
+  }
+
+  [OPENFILE] () {
+    this[ONOPENFILE](fs.openSync(this.absolute, 'r'))
+  }
+
+  [READ] (fd, buf, offset, length, pos, remain, blockRemain) {
+    let threw = true
+    try {
+      const bytesRead = fs.readSync(fd, buf, offset, length, pos)
+      this[ONREAD](fd, buf, offset, length, pos, remain, blockRemain, bytesRead)
+      threw = false
+    } finally {
+      if (threw)
+        try { this[CLOSE](fd) } catch (er) {}
+    }
+  }
+
+  [CLOSE] (fd) {
+    fs.closeSync(fd)
+  }
+}
+
+const WriteEntryTar = warner(class WriteEntryTar extends MiniPass {
+  constructor (readEntry, opt) {
+    opt = opt || {}
+    super(opt)
+    this.preservePaths = !!opt.preservePaths
+    this.portable = !!opt.portable
+    this.strict = !!opt.strict
+    this.noPax = !!opt.noPax
+    this.noMtime = !!opt.noMtime
+
+    this.readEntry = readEntry
+    this.type = readEntry.type
+    if (this.type === 'Directory' && this.portable)
+      this.noMtime = true
+
+    this.path = readEntry.path
+    this.mode = this[MODE](readEntry.mode)
+    this.uid = this.portable ? null : readEntry.uid
+    this.gid = this.portable ? null : readEntry.gid
+    this.uname = this.portable ? null : readEntry.uname
+    this.gname = this.portable ? null : readEntry.gname
+    this.size = readEntry.size
+    this.mtime = this.noMtime ? null : opt.mtime || readEntry.mtime
+    this.atime = this.portable ? null : readEntry.atime
+    this.ctime = this.portable ? null : readEntry.ctime
+    this.linkpath = readEntry.linkpath
+
+    if (typeof opt.onwarn === 'function')
+      this.on('warn', opt.onwarn)
+
+    if (path.isAbsolute(this.path) && !this.preservePaths) {
+      const parsed = path.parse(this.path)
+      this.warn(
+        'stripping ' + parsed.root + ' from absolute path',
+        this.path
+      )
+      this.path = this.path.substr(parsed.root.length)
+    }
+
+    this.remain = readEntry.size
+    this.blockRemain = readEntry.startBlockSize
+
+    this.header = new Header({
+      path: this.path,
+      linkpath: this.linkpath,
+      // only the permissions and setuid/setgid/sticky bitflags
+      // not the higher-order bits that specify file type
+      mode: this.mode,
+      uid: this.portable ? null : this.uid,
+      gid: this.portable ? null : this.gid,
+      size: this.size,
+      mtime: this.noMtime ? null : this.mtime,
+      type: this.type,
+      uname: this.portable ? null : this.uname,
+      atime: this.portable ? null : this.atime,
+      ctime: this.portable ? null : this.ctime
+    })
+
+    if (this.header.encode() && !this.noPax)
+      super.write(new Pax({
+        atime: this.portable ? null : this.atime,
+        ctime: this.portable ? null : this.ctime,
+        gid: this.portable ? null : this.gid,
+        mtime: this.noMtime ? null : this.mtime,
+        path: this.path,
+        linkpath: this.linkpath,
+        size: this.size,
+        uid: this.portable ? null : this.uid,
+        uname: this.portable ? null : this.uname,
+        dev: this.portable ? null : this.readEntry.dev,
+        ino: this.portable ? null : this.readEntry.ino,
+        nlink: this.portable ? null : this.readEntry.nlink
+      }).encode())
+
+    super.write(this.header.block)
+    readEntry.pipe(this)
+  }
+
+  [MODE] (mode) {
+    return modeFix(mode, this.type === 'Directory')
+  }
+
+  write (data) {
+    const writeLen = data.length
+    if (writeLen > this.blockRemain)
+      throw new Error('writing more to entry than is appropriate')
+    this.blockRemain -= writeLen
+    return super.write(data)
+  }
+
+  end () {
+    if (this.blockRemain)
+      this.write(Buffer.alloc(this.blockRemain))
+    return super.end()
+  }
+})
+
+WriteEntry.Sync = WriteEntrySync
+WriteEntry.Tar = WriteEntryTar
+
+const getType = stat =>
+  stat.isFile() ? 'File'
+  : stat.isDirectory() ? 'Directory'
+  : stat.isSymbolicLink() ? 'SymbolicLink'
+  : 'Unsupported'
+
+module.exports = WriteEntry

node_modules/tar/package.json

@@ -0,0 +1,37 @@
+{
+  "author": "Isaac Z. Schlueter <i@izs.me> (http://blog.izs.me/)",
+  "name": "tar",
+  "description": "tar for node",
+  "version": "4.4.6",
+  "repository": {
+    "type": "git",
+    "url": "https://github.com/npm/node-tar.git"
+  },
+  "dependencies": {
+    "chownr": "^1.0.1",
+    "fs-minipass": "^1.2.5",
+    "minipass": "^2.3.3",
+    "minizlib": "^1.1.0",
+    "mkdirp": "^0.5.0",
+    "safe-buffer": "^5.1.2",
+    "yallist": "^3.0.2"
+  },
+  "devDependencies": {
+    "chmodr": "^1.0.2",
+    "end-of-stream": "^1.4.1",
+    "events-to-array": "^1.1.2",
+    "mutate-fs": "^2.1.1",
+    "rimraf": "^2.6.2",
+    "tap": "^12.0.1",
+    "tar-fs": "^1.16.2",
+    "tar-stream": "^1.6.0"
+  },
+  "license": "ISC",
+  "engines": {
+    "node": ">=4.5"
+  },
+  "files": [
+    "index.js",
+    "lib/"
+  ]
+}