chore: add pkg dependencies

node_modules/tar-stream/extract.js

@@ -0,0 +1,257 @@
+var util = require('util')
+var bl = require('bl')
+var headers = require('./headers')
+
+var Writable = require('readable-stream').Writable
+var PassThrough = require('readable-stream').PassThrough
+
+var noop = function () {}
+
+var overflow = function (size) {
+  size &= 511
+  return size && 512 - size
+}
+
+var emptyStream = function (self, offset) {
+  var s = new Source(self, offset)
+  s.end()
+  return s
+}
+
+var mixinPax = function (header, pax) {
+  if (pax.path) header.name = pax.path
+  if (pax.linkpath) header.linkname = pax.linkpath
+  if (pax.size) header.size = parseInt(pax.size, 10)
+  header.pax = pax
+  return header
+}
+
+var Source = function (self, offset) {
+  this._parent = self
+  this.offset = offset
+  PassThrough.call(this, { autoDestroy: false })
+}
+
+util.inherits(Source, PassThrough)
+
+Source.prototype.destroy = function (err) {
+  this._parent.destroy(err)
+}
+
+var Extract = function (opts) {
+  if (!(this instanceof Extract)) return new Extract(opts)
+  Writable.call(this, opts)
+
+  opts = opts || {}
+
+  this._offset = 0
+  this._buffer = bl()
+  this._missing = 0
+  this._partial = false
+  this._onparse = noop
+  this._header = null
+  this._stream = null
+  this._overflow = null
+  this._cb = null
+  this._locked = false
+  this._destroyed = false
+  this._pax = null
+  this._paxGlobal = null
+  this._gnuLongPath = null
+  this._gnuLongLinkPath = null
+
+  var self = this
+  var b = self._buffer
+
+  var oncontinue = function () {
+    self._continue()
+  }
+
+  var onunlock = function (err) {
+    self._locked = false
+    if (err) return self.destroy(err)
+    if (!self._stream) oncontinue()
+  }
+
+  var onstreamend = function () {
+    self._stream = null
+    var drain = overflow(self._header.size)
+    if (drain) self._parse(drain, ondrain)
+    else self._parse(512, onheader)
+    if (!self._locked) oncontinue()
+  }
+
+  var ondrain = function () {
+    self._buffer.consume(overflow(self._header.size))
+    self._parse(512, onheader)
+    oncontinue()
+  }
+
+  var onpaxglobalheader = function () {
+    var size = self._header.size
+    self._paxGlobal = headers.decodePax(b.slice(0, size))
+    b.consume(size)
+    onstreamend()
+  }
+
+  var onpaxheader = function () {
+    var size = self._header.size
+    self._pax = headers.decodePax(b.slice(0, size))
+    if (self._paxGlobal) self._pax = Object.assign({}, self._paxGlobal, self._pax)
+    b.consume(size)
+    onstreamend()
+  }
+
+  var ongnulongpath = function () {
+    var size = self._header.size
+    this._gnuLongPath = headers.decodeLongPath(b.slice(0, size), opts.filenameEncoding)
+    b.consume(size)
+    onstreamend()
+  }
+
+  var ongnulonglinkpath = function () {
+    var size = self._header.size
+    this._gnuLongLinkPath = headers.decodeLongPath(b.slice(0, size), opts.filenameEncoding)
+    b.consume(size)
+    onstreamend()
+  }
+
+  var onheader = function () {
+    var offset = self._offset
+    var header
+    try {
+      header = self._header = headers.decode(b.slice(0, 512), opts.filenameEncoding, opts.allowUnknownFormat)
+    } catch (err) {
+      self.emit('error', err)
+    }
+    b.consume(512)
+
+    if (!header) {
+      self._parse(512, onheader)
+      oncontinue()
+      return
+    }
+    if (header.type === 'gnu-long-path') {
+      self._parse(header.size, ongnulongpath)
+      oncontinue()
+      return
+    }
+    if (header.type === 'gnu-long-link-path') {
+      self._parse(header.size, ongnulonglinkpath)
+      oncontinue()
+      return
+    }
+    if (header.type === 'pax-global-header') {
+      self._parse(header.size, onpaxglobalheader)
+      oncontinue()
+      return
+    }
+    if (header.type === 'pax-header') {
+      self._parse(header.size, onpaxheader)
+      oncontinue()
+      return
+    }
+
+    if (self._gnuLongPath) {
+      header.name = self._gnuLongPath
+      self._gnuLongPath = null
+    }
+
+    if (self._gnuLongLinkPath) {
+      header.linkname = self._gnuLongLinkPath
+      self._gnuLongLinkPath = null
+    }
+
+    if (self._pax) {
+      self._header = header = mixinPax(header, self._pax)
+      self._pax = null
+    }
+
+    self._locked = true
+
+    if (!header.size || header.type === 'directory') {
+      self._parse(512, onheader)
+      self.emit('entry', header, emptyStream(self, offset), onunlock)
+      return
+    }
+
+    self._stream = new Source(self, offset)
+
+    self.emit('entry', header, self._stream, onunlock)
+    self._parse(header.size, onstreamend)
+    oncontinue()
+  }
+
+  this._onheader = onheader
+  this._parse(512, onheader)
+}
+
+util.inherits(Extract, Writable)
+
+Extract.prototype.destroy = function (err) {
+  if (this._destroyed) return
+  this._destroyed = true
+
+  if (err) this.emit('error', err)
+  this.emit('close')
+  if (this._stream) this._stream.emit('close')
+}
+
+Extract.prototype._parse = function (size, onparse) {
+  if (this._destroyed) return
+  this._offset += size
+  this._missing = size
+  if (onparse === this._onheader) this._partial = false
+  this._onparse = onparse
+}
+
+Extract.prototype._continue = function () {
+  if (this._destroyed) return
+  var cb = this._cb
+  this._cb = noop
+  if (this._overflow) this._write(this._overflow, undefined, cb)
+  else cb()
+}
+
+Extract.prototype._write = function (data, enc, cb) {
+  if (this._destroyed) return
+
+  var s = this._stream
+  var b = this._buffer
+  var missing = this._missing
+  if (data.length) this._partial = true
+
+  // we do not reach end-of-chunk now. just forward it
+
+  if (data.length < missing) {
+    this._missing -= data.length
+    this._overflow = null
+    if (s) return s.write(data, cb)
+    b.append(data)
+    return cb()
+  }
+
+  // end-of-chunk. the parser should call cb.
+
+  this._cb = cb
+  this._missing = 0
+
+  var overflow = null
+  if (data.length > missing) {
+    overflow = data.slice(missing)
+    data = data.slice(0, missing)
+  }
+
+  if (s) s.end(data)
+  else b.append(data)
+
+  this._overflow = overflow
+  this._onparse()
+}
+
+Extract.prototype._final = function (cb) {
+  if (this._partial) return this.destroy(new Error('Unexpected end of data'))
+  cb()
+}
+
+module.exports = Extract

node_modules/tar-stream/headers.js

@@ -0,0 +1,295 @@
+var alloc = Buffer.alloc
+
+var ZEROS = '0000000000000000000'
+var SEVENS = '7777777777777777777'
+var ZERO_OFFSET = '0'.charCodeAt(0)
+var USTAR_MAGIC = Buffer.from('ustar\x00', 'binary')
+var USTAR_VER = Buffer.from('00', 'binary')
+var GNU_MAGIC = Buffer.from('ustar\x20', 'binary')
+var GNU_VER = Buffer.from('\x20\x00', 'binary')
+var MASK = parseInt('7777', 8)
+var MAGIC_OFFSET = 257
+var VERSION_OFFSET = 263
+
+var clamp = function (index, len, defaultValue) {
+  if (typeof index !== 'number') return defaultValue
+  index = ~~index // Coerce to integer.
+  if (index >= len) return len
+  if (index >= 0) return index
+  index += len
+  if (index >= 0) return index
+  return 0
+}
+
+var toType = function (flag) {
+  switch (flag) {
+    case 0:
+      return 'file'
+    case 1:
+      return 'link'
+    case 2:
+      return 'symlink'
+    case 3:
+      return 'character-device'
+    case 4:
+      return 'block-device'
+    case 5:
+      return 'directory'
+    case 6:
+      return 'fifo'
+    case 7:
+      return 'contiguous-file'
+    case 72:
+      return 'pax-header'
+    case 55:
+      return 'pax-global-header'
+    case 27:
+      return 'gnu-long-link-path'
+    case 28:
+    case 30:
+      return 'gnu-long-path'
+  }
+
+  return null
+}
+
+var toTypeflag = function (flag) {
+  switch (flag) {
+    case 'file':
+      return 0
+    case 'link':
+      return 1
+    case 'symlink':
+      return 2
+    case 'character-device':
+      return 3
+    case 'block-device':
+      return 4
+    case 'directory':
+      return 5
+    case 'fifo':
+      return 6
+    case 'contiguous-file':
+      return 7
+    case 'pax-header':
+      return 72
+  }
+
+  return 0
+}
+
+var indexOf = function (block, num, offset, end) {
+  for (; offset < end; offset++) {
+    if (block[offset] === num) return offset
+  }
+  return end
+}
+
+var cksum = function (block) {
+  var sum = 8 * 32
+  for (var i = 0; i < 148; i++) sum += block[i]
+  for (var j = 156; j < 512; j++) sum += block[j]
+  return sum
+}
+
+var encodeOct = function (val, n) {
+  val = val.toString(8)
+  if (val.length > n) return SEVENS.slice(0, n) + ' '
+  else return ZEROS.slice(0, n - val.length) + val + ' '
+}
+
+/* Copied from the node-tar repo and modified to meet
+ * tar-stream coding standard.
+ *
+ * Source: https://github.com/npm/node-tar/blob/51b6627a1f357d2eb433e7378e5f05e83b7aa6cd/lib/header.js#L349
+ */
+function parse256 (buf) {
+  // first byte MUST be either 80 or FF
+  // 80 for positive, FF for 2's comp
+  var positive
+  if (buf[0] === 0x80) positive = true
+  else if (buf[0] === 0xFF) positive = false
+  else return null
+
+  // build up a base-256 tuple from the least sig to the highest
+  var tuple = []
+  for (var i = buf.length - 1; i > 0; i--) {
+    var byte = buf[i]
+    if (positive) tuple.push(byte)
+    else tuple.push(0xFF - byte)
+  }
+
+  var sum = 0
+  var l = tuple.length
+  for (i = 0; i < l; i++) {
+    sum += tuple[i] * Math.pow(256, i)
+  }
+
+  return positive ? sum : -1 * sum
+}
+
+var decodeOct = function (val, offset, length) {
+  val = val.slice(offset, offset + length)
+  offset = 0
+
+  // If prefixed with 0x80 then parse as a base-256 integer
+  if (val[offset] & 0x80) {
+    return parse256(val)
+  } else {
+    // Older versions of tar can prefix with spaces
+    while (offset < val.length && val[offset] === 32) offset++
+    var end = clamp(indexOf(val, 32, offset, val.length), val.length, val.length)
+    while (offset < end && val[offset] === 0) offset++
+    if (end === offset) return 0
+    return parseInt(val.slice(offset, end).toString(), 8)
+  }
+}
+
+var decodeStr = function (val, offset, length, encoding) {
+  return val.slice(offset, indexOf(val, 0, offset, offset + length)).toString(encoding)
+}
+
+var addLength = function (str) {
+  var len = Buffer.byteLength(str)
+  var digits = Math.floor(Math.log(len) / Math.log(10)) + 1
+  if (len + digits >= Math.pow(10, digits)) digits++
+
+  return (len + digits) + str
+}
+
+exports.decodeLongPath = function (buf, encoding) {
+  return decodeStr(buf, 0, buf.length, encoding)
+}
+
+exports.encodePax = function (opts) { // TODO: encode more stuff in pax
+  var result = ''
+  if (opts.name) result += addLength(' path=' + opts.name + '\n')
+  if (opts.linkname) result += addLength(' linkpath=' + opts.linkname + '\n')
+  var pax = opts.pax
+  if (pax) {
+    for (var key in pax) {
+      result += addLength(' ' + key + '=' + pax[key] + '\n')
+    }
+  }
+  return Buffer.from(result)
+}
+
+exports.decodePax = function (buf) {
+  var result = {}
+
+  while (buf.length) {
+    var i = 0
+    while (i < buf.length && buf[i] !== 32) i++
+    var len = parseInt(buf.slice(0, i).toString(), 10)
+    if (!len) return result
+
+    var b = buf.slice(i + 1, len - 1).toString()
+    var keyIndex = b.indexOf('=')
+    if (keyIndex === -1) return result
+    result[b.slice(0, keyIndex)] = b.slice(keyIndex + 1)
+
+    buf = buf.slice(len)
+  }
+
+  return result
+}
+
+exports.encode = function (opts) {
+  var buf = alloc(512)
+  var name = opts.name
+  var prefix = ''
+
+  if (opts.typeflag === 5 && name[name.length - 1] !== '/') name += '/'
+  if (Buffer.byteLength(name) !== name.length) return null // utf-8
+
+  while (Buffer.byteLength(name) > 100) {
+    var i = name.indexOf('/')
+    if (i === -1) return null
+    prefix += prefix ? '/' + name.slice(0, i) : name.slice(0, i)
+    name = name.slice(i + 1)
+  }
+
+  if (Buffer.byteLength(name) > 100 || Buffer.byteLength(prefix) > 155) return null
+  if (opts.linkname && Buffer.byteLength(opts.linkname) > 100) return null
+
+  buf.write(name)
+  buf.write(encodeOct(opts.mode & MASK, 6), 100)
+  buf.write(encodeOct(opts.uid, 6), 108)
+  buf.write(encodeOct(opts.gid, 6), 116)
+  buf.write(encodeOct(opts.size, 11), 124)
+  buf.write(encodeOct((opts.mtime.getTime() / 1000) | 0, 11), 136)
+
+  buf[156] = ZERO_OFFSET + toTypeflag(opts.type)
+
+  if (opts.linkname) buf.write(opts.linkname, 157)
+
+  USTAR_MAGIC.copy(buf, MAGIC_OFFSET)
+  USTAR_VER.copy(buf, VERSION_OFFSET)
+  if (opts.uname) buf.write(opts.uname, 265)
+  if (opts.gname) buf.write(opts.gname, 297)
+  buf.write(encodeOct(opts.devmajor || 0, 6), 329)
+  buf.write(encodeOct(opts.devminor || 0, 6), 337)
+
+  if (prefix) buf.write(prefix, 345)
+
+  buf.write(encodeOct(cksum(buf), 6), 148)
+
+  return buf
+}
+
+exports.decode = function (buf, filenameEncoding, allowUnknownFormat) {
+  var typeflag = buf[156] === 0 ? 0 : buf[156] - ZERO_OFFSET
+
+  var name = decodeStr(buf, 0, 100, filenameEncoding)
+  var mode = decodeOct(buf, 100, 8)
+  var uid = decodeOct(buf, 108, 8)
+  var gid = decodeOct(buf, 116, 8)
+  var size = decodeOct(buf, 124, 12)
+  var mtime = decodeOct(buf, 136, 12)
+  var type = toType(typeflag)
+  var linkname = buf[157] === 0 ? null : decodeStr(buf, 157, 100, filenameEncoding)
+  var uname = decodeStr(buf, 265, 32)
+  var gname = decodeStr(buf, 297, 32)
+  var devmajor = decodeOct(buf, 329, 8)
+  var devminor = decodeOct(buf, 337, 8)
+
+  var c = cksum(buf)
+
+  // checksum is still initial value if header was null.
+  if (c === 8 * 32) return null
+
+  // valid checksum
+  if (c !== decodeOct(buf, 148, 8)) throw new Error('Invalid tar header. Maybe the tar is corrupted or it needs to be gunzipped?')
+
+  if (USTAR_MAGIC.compare(buf, MAGIC_OFFSET, MAGIC_OFFSET + 6) === 0) {
+    // ustar (posix) format.
+    // prepend prefix, if present.
+    if (buf[345]) name = decodeStr(buf, 345, 155, filenameEncoding) + '/' + name
+  } else if (GNU_MAGIC.compare(buf, MAGIC_OFFSET, MAGIC_OFFSET + 6) === 0 &&
+             GNU_VER.compare(buf, VERSION_OFFSET, VERSION_OFFSET + 2) === 0) {
+    // 'gnu'/'oldgnu' format. Similar to ustar, but has support for incremental and
+    // multi-volume tarballs.
+  } else {
+    if (!allowUnknownFormat) {
+      throw new Error('Invalid tar header: unknown format.')
+    }
+  }
+
+  // to support old tar versions that use trailing / to indicate dirs
+  if (typeflag === 0 && name && name[name.length - 1] === '/') typeflag = 5
+
+  return {
+    name,
+    mode,
+    uid,
+    gid,
+    size,
+    mtime: new Date(1000 * mtime),
+    type,
+    linkname,
+    uname,
+    gname,
+    devmajor,
+    devminor
+  }
+}

node_modules/tar-stream/index.js

@@ -0,0 +1,2 @@
+exports.extract = require('./extract')
+exports.pack = require('./pack')

node_modules/tar-stream/node_modules/readable-stream/errors-browser.js

@@ -0,0 +1,127 @@
+'use strict';
+
+function _inheritsLoose(subClass, superClass) { subClass.prototype = Object.create(superClass.prototype); subClass.prototype.constructor = subClass; subClass.__proto__ = superClass; }
+
+var codes = {};
+
+function createErrorType(code, message, Base) {
+  if (!Base) {
+    Base = Error;
+  }
+
+  function getMessage(arg1, arg2, arg3) {
+    if (typeof message === 'string') {
+      return message;
+    } else {
+      return message(arg1, arg2, arg3);
+    }
+  }
+
+  var NodeError =
+  /*#__PURE__*/
+  function (_Base) {
+    _inheritsLoose(NodeError, _Base);
+
+    function NodeError(arg1, arg2, arg3) {
+      return _Base.call(this, getMessage(arg1, arg2, arg3)) || this;
+    }
+
+    return NodeError;
+  }(Base);
+
+  NodeError.prototype.name = Base.name;
+  NodeError.prototype.code = code;
+  codes[code] = NodeError;
+} // https://github.com/nodejs/node/blob/v10.8.0/lib/internal/errors.js
+
+
+function oneOf(expected, thing) {
+  if (Array.isArray(expected)) {
+    var len = expected.length;
+    expected = expected.map(function (i) {
+      return String(i);
+    });
+
+    if (len > 2) {
+      return "one of ".concat(thing, " ").concat(expected.slice(0, len - 1).join(', '), ", or ") + expected[len - 1];
+    } else if (len === 2) {
+      return "one of ".concat(thing, " ").concat(expected[0], " or ").concat(expected[1]);
+    } else {
+      return "of ".concat(thing, " ").concat(expected[0]);
+    }
+  } else {
+    return "of ".concat(thing, " ").concat(String(expected));
+  }
+} // https://developer.mozilla.org/en-US/docs/Web/JavaScript/Reference/Global_Objects/String/startsWith
+
+
+function startsWith(str, search, pos) {
+  return str.substr(!pos || pos < 0 ? 0 : +pos, search.length) === search;
+} // https://developer.mozilla.org/en-US/docs/Web/JavaScript/Reference/Global_Objects/String/endsWith
+
+
+function endsWith(str, search, this_len) {
+  if (this_len === undefined || this_len > str.length) {
+    this_len = str.length;
+  }
+
+  return str.substring(this_len - search.length, this_len) === search;
+} // https://developer.mozilla.org/en-US/docs/Web/JavaScript/Reference/Global_Objects/String/includes
+
+
+function includes(str, search, start) {
+  if (typeof start !== 'number') {
+    start = 0;
+  }
+
+  if (start + search.length > str.length) {
+    return false;
+  } else {
+    return str.indexOf(search, start) !== -1;
+  }
+}
+
+createErrorType('ERR_INVALID_OPT_VALUE', function (name, value) {
+  return 'The value "' + value + '" is invalid for option "' + name + '"';
+}, TypeError);
+createErrorType('ERR_INVALID_ARG_TYPE', function (name, expected, actual) {
+  // determiner: 'must be' or 'must not be'
+  var determiner;
+
+  if (typeof expected === 'string' && startsWith(expected, 'not ')) {
+    determiner = 'must not be';
+    expected = expected.replace(/^not /, '');
+  } else {
+    determiner = 'must be';
+  }
+
+  var msg;
+
+  if (endsWith(name, ' argument')) {
+    // For cases like 'first argument'
+    msg = "The ".concat(name, " ").concat(determiner, " ").concat(oneOf(expected, 'type'));
+  } else {
+    var type = includes(name, '.') ? 'property' : 'argument';
+    msg = "The \"".concat(name, "\" ").concat(type, " ").concat(determiner, " ").concat(oneOf(expected, 'type'));
+  }
+
+  msg += ". Received type ".concat(typeof actual);
+  return msg;
+}, TypeError);
+createErrorType('ERR_STREAM_PUSH_AFTER_EOF', 'stream.push() after EOF');
+createErrorType('ERR_METHOD_NOT_IMPLEMENTED', function (name) {
+  return 'The ' + name + ' method is not implemented';
+});
+createErrorType('ERR_STREAM_PREMATURE_CLOSE', 'Premature close');
+createErrorType('ERR_STREAM_DESTROYED', function (name) {
+  return 'Cannot call ' + name + ' after a stream was destroyed';
+});
+createErrorType('ERR_MULTIPLE_CALLBACK', 'Callback called multiple times');
+createErrorType('ERR_STREAM_CANNOT_PIPE', 'Cannot pipe, not readable');
+createErrorType('ERR_STREAM_WRITE_AFTER_END', 'write after end');
+createErrorType('ERR_STREAM_NULL_VALUES', 'May not write null values to stream', TypeError);
+createErrorType('ERR_UNKNOWN_ENCODING', function (arg) {
+  return 'Unknown encoding: ' + arg;
+}, TypeError);
+createErrorType('ERR_STREAM_UNSHIFT_AFTER_END_EVENT', 'stream.unshift() after end event');
+module.exports.codes = codes;

node_modules/tar-stream/node_modules/readable-stream/errors.js

@@ -0,0 +1,116 @@
+'use strict';
+
+const codes = {};
+
+function createErrorType(code, message, Base) {
+  if (!Base) {
+    Base = Error
+  }
+
+  function getMessage (arg1, arg2, arg3) {
+    if (typeof message === 'string') {
+      return message
+    } else {
+      return message(arg1, arg2, arg3)
+    }
+  }
+
+  class NodeError extends Base {
+    constructor (arg1, arg2, arg3) {
+      super(getMessage(arg1, arg2, arg3));
+    }
+  }
+
+  NodeError.prototype.name = Base.name;
+  NodeError.prototype.code = code;
+
+  codes[code] = NodeError;
+}
+
+// https://github.com/nodejs/node/blob/v10.8.0/lib/internal/errors.js
+function oneOf(expected, thing) {
+  if (Array.isArray(expected)) {
+    const len = expected.length;
+    expected = expected.map((i) => String(i));
+    if (len > 2) {
+      return `one of ${thing} ${expected.slice(0, len - 1).join(', ')}, or ` +
+             expected[len - 1];
+    } else if (len === 2) {
+      return `one of ${thing} ${expected[0]} or ${expected[1]}`;
+    } else {
+      return `of ${thing} ${expected[0]}`;
+    }
+  } else {
+    return `of ${thing} ${String(expected)}`;
+  }
+}
+
+// https://developer.mozilla.org/en-US/docs/Web/JavaScript/Reference/Global_Objects/String/startsWith
+function startsWith(str, search, pos) {
+	return str.substr(!pos || pos < 0 ? 0 : +pos, search.length) === search;
+}
+
+// https://developer.mozilla.org/en-US/docs/Web/JavaScript/Reference/Global_Objects/String/endsWith
+function endsWith(str, search, this_len) {
+	if (this_len === undefined || this_len > str.length) {
+		this_len = str.length;
+	}
+	return str.substring(this_len - search.length, this_len) === search;
+}
+
+// https://developer.mozilla.org/en-US/docs/Web/JavaScript/Reference/Global_Objects/String/includes
+function includes(str, search, start) {
+  if (typeof start !== 'number') {
+    start = 0;
+  }
+
+  if (start + search.length > str.length) {
+    return false;
+  } else {
+    return str.indexOf(search, start) !== -1;
+  }
+}
+
+createErrorType('ERR_INVALID_OPT_VALUE', function (name, value) {
+  return 'The value "' + value + '" is invalid for option "' + name + '"'
+}, TypeError);
+createErrorType('ERR_INVALID_ARG_TYPE', function (name, expected, actual) {
+  // determiner: 'must be' or 'must not be'
+  let determiner;
+  if (typeof expected === 'string' && startsWith(expected, 'not ')) {
+    determiner = 'must not be';
+    expected = expected.replace(/^not /, '');
+  } else {
+    determiner = 'must be';
+  }
+
+  let msg;
+  if (endsWith(name, ' argument')) {
+    // For cases like 'first argument'
+    msg = `The ${name} ${determiner} ${oneOf(expected, 'type')}`;
+  } else {
+    const type = includes(name, '.') ? 'property' : 'argument';
+    msg = `The "${name}" ${type} ${determiner} ${oneOf(expected, 'type')}`;
+  }
+
+  msg += `. Received type ${typeof actual}`;
+  return msg;
+}, TypeError);
+createErrorType('ERR_STREAM_PUSH_AFTER_EOF', 'stream.push() after EOF');
+createErrorType('ERR_METHOD_NOT_IMPLEMENTED', function (name) {
+  return 'The ' + name + ' method is not implemented'
+});
+createErrorType('ERR_STREAM_PREMATURE_CLOSE', 'Premature close');
+createErrorType('ERR_STREAM_DESTROYED', function (name) {
+  return 'Cannot call ' + name + ' after a stream was destroyed';
+});
+createErrorType('ERR_MULTIPLE_CALLBACK', 'Callback called multiple times');
+createErrorType('ERR_STREAM_CANNOT_PIPE', 'Cannot pipe, not readable');
+createErrorType('ERR_STREAM_WRITE_AFTER_END', 'write after end');
+createErrorType('ERR_STREAM_NULL_VALUES', 'May not write null values to stream', TypeError);
+createErrorType('ERR_UNKNOWN_ENCODING', function (arg) {
+  return 'Unknown encoding: ' + arg
+}, TypeError);
+createErrorType('ERR_STREAM_UNSHIFT_AFTER_END_EVENT', 'stream.unshift() after end event');
+
+module.exports.codes = codes;

node_modules/tar-stream/node_modules/readable-stream/experimentalWarning.js

@@ -0,0 +1,17 @@
+'use strict'
+
+var experimentalWarnings = new Set();
+
+function emitExperimentalWarning(feature) {
+  if (experimentalWarnings.has(feature)) return;
+  var msg = feature + ' is an experimental feature. This feature could ' +
+       'change at any time';
+  experimentalWarnings.add(feature);
+  process.emitWarning(msg, 'ExperimentalWarning');
+}
+
+function noop() {}
+
+module.exports.emitExperimentalWarning = process.emitWarning
+  ? emitExperimentalWarning
+  : noop;

node_modules/tar-stream/node_modules/readable-stream/lib/_stream_duplex.js

@@ -0,0 +1,126 @@
+// Copyright Joyent, Inc. and other Node contributors.
+//
+// Permission is hereby granted, free of charge, to any person obtaining a
+// copy of this software and associated documentation files (the
+// "Software"), to deal in the Software without restriction, including
+// without limitation the rights to use, copy, modify, merge, publish,
+// distribute, sublicense, and/or sell copies of the Software, and to permit
+// persons to whom the Software is furnished to do so, subject to the
+// following conditions:
+//
+// The above copyright notice and this permission notice shall be included
+// in all copies or substantial portions of the Software.
+//
+// THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS
+// OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
+// MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN
+// NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM,
+// DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR
+// OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE
+// USE OR OTHER DEALINGS IN THE SOFTWARE.
+
+// a duplex stream is just a stream that is both readable and writable.
+// Since JS doesn't have multiple prototypal inheritance, this class
+// prototypally inherits from Readable, and then parasitically from
+// Writable.
+
+'use strict';
+
+/*<replacement>*/
+var objectKeys = Object.keys || function (obj) {
+  var keys = [];
+  for (var key in obj) keys.push(key);
+  return keys;
+};
+/*</replacement>*/
+
+module.exports = Duplex;
+var Readable = require('./_stream_readable');
+var Writable = require('./_stream_writable');
+require('inherits')(Duplex, Readable);
+{
+  // Allow the keys array to be GC'ed.
+  var keys = objectKeys(Writable.prototype);
+  for (var v = 0; v < keys.length; v++) {
+    var method = keys[v];
+    if (!Duplex.prototype[method]) Duplex.prototype[method] = Writable.prototype[method];
+  }
+}
+function Duplex(options) {
+  if (!(this instanceof Duplex)) return new Duplex(options);
+  Readable.call(this, options);
+  Writable.call(this, options);
+  this.allowHalfOpen = true;
+  if (options) {
+    if (options.readable === false) this.readable = false;
+    if (options.writable === false) this.writable = false;
+    if (options.allowHalfOpen === false) {
+      this.allowHalfOpen = false;
+      this.once('end', onend);
+    }
+  }
+}
+Object.defineProperty(Duplex.prototype, 'writableHighWaterMark', {
+  // making it explicit this property is not enumerable
+  // because otherwise some prototype manipulation in
+  // userland will fail
+  enumerable: false,
+  get: function get() {
+    return this._writableState.highWaterMark;
+  }
+});
+Object.defineProperty(Duplex.prototype, 'writableBuffer', {
+  // making it explicit this property is not enumerable
+  // because otherwise some prototype manipulation in
+  // userland will fail
+  enumerable: false,
+  get: function get() {
+    return this._writableState && this._writableState.getBuffer();
+  }
+});
+Object.defineProperty(Duplex.prototype, 'writableLength', {
+  // making it explicit this property is not enumerable
+  // because otherwise some prototype manipulation in
+  // userland will fail
+  enumerable: false,
+  get: function get() {
+    return this._writableState.length;
+  }
+});
+
+// the no-half-open enforcer
+function onend() {
+  // If the writable side ended, then we're ok.
+  if (this._writableState.ended) return;
+
+  // no more data can be written.
+  // But allow more writes to happen in this tick.
+  process.nextTick(onEndNT, this);
+}
+function onEndNT(self) {
+  self.end();
+}
+Object.defineProperty(Duplex.prototype, 'destroyed', {
+  // making it explicit this property is not enumerable
+  // because otherwise some prototype manipulation in
+  // userland will fail
+  enumerable: false,
+  get: function get() {
+    if (this._readableState === undefined || this._writableState === undefined) {
+      return false;
+    }
+    return this._readableState.destroyed && this._writableState.destroyed;
+  },
+  set: function set(value) {
+    // we ignore the value if the stream
+    // has not been initialized yet
+    if (this._readableState === undefined || this._writableState === undefined) {
+      return;
+    }
+
+    // backward compatibility, the user is explicitly
+    // managing destroyed
+    this._readableState.destroyed = value;
+    this._writableState.destroyed = value;
+  }
+});

node_modules/tar-stream/node_modules/readable-stream/lib/_stream_passthrough.js

@@ -0,0 +1,37 @@
+// Copyright Joyent, Inc. and other Node contributors.
+//
+// Permission is hereby granted, free of charge, to any person obtaining a
+// copy of this software and associated documentation files (the
+// "Software"), to deal in the Software without restriction, including
+// without limitation the rights to use, copy, modify, merge, publish,
+// distribute, sublicense, and/or sell copies of the Software, and to permit
+// persons to whom the Software is furnished to do so, subject to the
+// following conditions:
+//
+// The above copyright notice and this permission notice shall be included
+// in all copies or substantial portions of the Software.
+//
+// THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS
+// OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
+// MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN
+// NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM,
+// DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR
+// OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE
+// USE OR OTHER DEALINGS IN THE SOFTWARE.
+
+// a passthrough stream.
+// basically just the most minimal sort of Transform stream.
+// Every written chunk gets output as-is.
+
+'use strict';
+
+module.exports = PassThrough;
+var Transform = require('./_stream_transform');
+require('inherits')(PassThrough, Transform);
+function PassThrough(options) {
+  if (!(this instanceof PassThrough)) return new PassThrough(options);
+  Transform.call(this, options);
+}
+PassThrough.prototype._transform = function (chunk, encoding, cb) {
+  cb(null, chunk);
+};

node_modules/tar-stream/node_modules/readable-stream/lib/_stream_transform.js

@@ -0,0 +1,190 @@
+// Copyright Joyent, Inc. and other Node contributors.
+//
+// Permission is hereby granted, free of charge, to any person obtaining a
+// copy of this software and associated documentation files (the
+// "Software"), to deal in the Software without restriction, including
+// without limitation the rights to use, copy, modify, merge, publish,
+// distribute, sublicense, and/or sell copies of the Software, and to permit
+// persons to whom the Software is furnished to do so, subject to the
+// following conditions:
+//
+// The above copyright notice and this permission notice shall be included
+// in all copies or substantial portions of the Software.
+//
+// THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS
+// OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
+// MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN
+// NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM,
+// DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR
+// OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE
+// USE OR OTHER DEALINGS IN THE SOFTWARE.
+
+// a transform stream is a readable/writable stream where you do
+// something with the data.  Sometimes it's called a "filter",
+// but that's not a great name for it, since that implies a thing where
+// some bits pass through, and others are simply ignored.  (That would
+// be a valid example of a transform, of course.)
+//
+// While the output is causally related to the input, it's not a
+// necessarily symmetric or synchronous transformation.  For example,
+// a zlib stream might take multiple plain-text writes(), and then
+// emit a single compressed chunk some time in the future.
+//
+// Here's how this works:
+//
+// The Transform stream has all the aspects of the readable and writable
+// stream classes.  When you write(chunk), that calls _write(chunk,cb)
+// internally, and returns false if there's a lot of pending writes
+// buffered up.  When you call read(), that calls _read(n) until
+// there's enough pending readable data buffered up.
+//
+// In a transform stream, the written data is placed in a buffer.  When
+// _read(n) is called, it transforms the queued up data, calling the
+// buffered _write cb's as it consumes chunks.  If consuming a single
+// written chunk would result in multiple output chunks, then the first
+// outputted bit calls the readcb, and subsequent chunks just go into
+// the read buffer, and will cause it to emit 'readable' if necessary.
+//
+// This way, back-pressure is actually determined by the reading side,
+// since _read has to be called to start processing a new chunk.  However,
+// a pathological inflate type of transform can cause excessive buffering
+// here.  For example, imagine a stream where every byte of input is
+// interpreted as an integer from 0-255, and then results in that many
+// bytes of output.  Writing the 4 bytes {ff,ff,ff,ff} would result in
+// 1kb of data being output.  In this case, you could write a very small
+// amount of input, and end up with a very large amount of output.  In
+// such a pathological inflating mechanism, there'd be no way to tell
+// the system to stop doing the transform.  A single 4MB write could
+// cause the system to run out of memory.
+//
+// However, even in such a pathological case, only a single written chunk
+// would be consumed, and then the rest would wait (un-transformed) until
+// the results of the previous transformed chunk were consumed.
+
+'use strict';
+
+module.exports = Transform;
+var _require$codes = require('../errors').codes,
+  ERR_METHOD_NOT_IMPLEMENTED = _require$codes.ERR_METHOD_NOT_IMPLEMENTED,
+  ERR_MULTIPLE_CALLBACK = _require$codes.ERR_MULTIPLE_CALLBACK,
+  ERR_TRANSFORM_ALREADY_TRANSFORMING = _require$codes.ERR_TRANSFORM_ALREADY_TRANSFORMING,
+  ERR_TRANSFORM_WITH_LENGTH_0 = _require$codes.ERR_TRANSFORM_WITH_LENGTH_0;
+var Duplex = require('./_stream_duplex');
+require('inherits')(Transform, Duplex);
+function afterTransform(er, data) {
+  var ts = this._transformState;
+  ts.transforming = false;
+  var cb = ts.writecb;
+  if (cb === null) {
+    return this.emit('error', new ERR_MULTIPLE_CALLBACK());
+  }
+  ts.writechunk = null;
+  ts.writecb = null;
+  if (data != null)
+    // single equals check for both `null` and `undefined`
+    this.push(data);
+  cb(er);
+  var rs = this._readableState;
+  rs.reading = false;
+  if (rs.needReadable || rs.length < rs.highWaterMark) {
+    this._read(rs.highWaterMark);
+  }
+}
+function Transform(options) {
+  if (!(this instanceof Transform)) return new Transform(options);
+  Duplex.call(this, options);
+  this._transformState = {
+    afterTransform: afterTransform.bind(this),
+    needTransform: false,
+    transforming: false,
+    writecb: null,
+    writechunk: null,
+    writeencoding: null
+  };
+
+  // start out asking for a readable event once data is transformed.
+  this._readableState.needReadable = true;
+
+  // we have implemented the _read method, and done the other things
+  // that Readable wants before the first _read call, so unset the
+  // sync guard flag.
+  this._readableState.sync = false;
+  if (options) {
+    if (typeof options.transform === 'function') this._transform = options.transform;
+    if (typeof options.flush === 'function') this._flush = options.flush;
+  }
+
+  // When the writable side finishes, then flush out anything remaining.
+  this.on('prefinish', prefinish);
+}
+function prefinish() {
+  var _this = this;
+  if (typeof this._flush === 'function' && !this._readableState.destroyed) {
+    this._flush(function (er, data) {
+      done(_this, er, data);
+    });
+  } else {
+    done(this, null, null);
+  }
+}
+Transform.prototype.push = function (chunk, encoding) {
+  this._transformState.needTransform = false;
+  return Duplex.prototype.push.call(this, chunk, encoding);
+};
+
+// This is the part where you do stuff!
+// override this function in implementation classes.
+// 'chunk' is an input chunk.
+//
+// Call `push(newChunk)` to pass along transformed output
+// to the readable side.  You may call 'push' zero or more times.
+//
+// Call `cb(err)` when you are done with this chunk.  If you pass
+// an error, then that'll put the hurt on the whole operation.  If you
+// never call cb(), then you'll never get another chunk.
+Transform.prototype._transform = function (chunk, encoding, cb) {
+  cb(new ERR_METHOD_NOT_IMPLEMENTED('_transform()'));
+};
+Transform.prototype._write = function (chunk, encoding, cb) {
+  var ts = this._transformState;
+  ts.writecb = cb;
+  ts.writechunk = chunk;
+  ts.writeencoding = encoding;
+  if (!ts.transforming) {
+    var rs = this._readableState;
+    if (ts.needTransform || rs.needReadable || rs.length < rs.highWaterMark) this._read(rs.highWaterMark);
+  }
+};
+
+// Doesn't matter what the args are here.
+// _transform does all the work.
+// That we got here means that the readable side wants more data.
+Transform.prototype._read = function (n) {
+  var ts = this._transformState;
+  if (ts.writechunk !== null && !ts.transforming) {
+    ts.transforming = true;
+    this._transform(ts.writechunk, ts.writeencoding, ts.afterTransform);
+  } else {
+    // mark that we need a transform, so that any data that comes in
+    // will get processed, now that we've asked for it.
+    ts.needTransform = true;
+  }
+};
+Transform.prototype._destroy = function (err, cb) {
+  Duplex.prototype._destroy.call(this, err, function (err2) {
+    cb(err2);
+  });
+};
+function done(stream, er, data) {
+  if (er) return stream.emit('error', er);
+  if (data != null)
+    // single equals check for both `null` and `undefined`
+    stream.push(data);
+
+  // TODO(BridgeAR): Write a test for these two error cases
+  // if there's nothing in the write buffer, then that means
+  // that nothing more will ever be provided
+  if (stream._writableState.length) throw new ERR_TRANSFORM_WITH_LENGTH_0();
+  if (stream._transformState.transforming) throw new ERR_TRANSFORM_ALREADY_TRANSFORMING();
+  return stream.push(null);
+}

node_modules/tar-stream/node_modules/readable-stream/lib/_stream_writable.js

@@ -0,0 +1,641 @@
+// Copyright Joyent, Inc. and other Node contributors.
+//
+// Permission is hereby granted, free of charge, to any person obtaining a
+// copy of this software and associated documentation files (the
+// "Software"), to deal in the Software without restriction, including
+// without limitation the rights to use, copy, modify, merge, publish,
+// distribute, sublicense, and/or sell copies of the Software, and to permit
+// persons to whom the Software is furnished to do so, subject to the
+// following conditions:
+//
+// The above copyright notice and this permission notice shall be included
+// in all copies or substantial portions of the Software.
+//
+// THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS
+// OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
+// MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN
+// NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM,
+// DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR
+// OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE
+// USE OR OTHER DEALINGS IN THE SOFTWARE.
+
+// A bit simpler than readable streams.
+// Implement an async ._write(chunk, encoding, cb), and it'll handle all
+// the drain event emission and buffering.
+
+'use strict';
+
+module.exports = Writable;
+
+/* <replacement> */
+function WriteReq(chunk, encoding, cb) {
+  this.chunk = chunk;
+  this.encoding = encoding;
+  this.callback = cb;
+  this.next = null;
+}
+
+// It seems a linked list but it is not
+// there will be only 2 of these for each stream
+function CorkedRequest(state) {
+  var _this = this;
+  this.next = null;
+  this.entry = null;
+  this.finish = function () {
+    onCorkedFinish(_this, state);
+  };
+}
+/* </replacement> */
+
+/*<replacement>*/
+var Duplex;
+/*</replacement>*/
+
+Writable.WritableState = WritableState;
+
+/*<replacement>*/
+var internalUtil = {
+  deprecate: require('util-deprecate')
+};
+/*</replacement>*/
+
+/*<replacement>*/
+var Stream = require('./internal/streams/stream');
+/*</replacement>*/
+
+var Buffer = require('buffer').Buffer;
+var OurUint8Array = (typeof global !== 'undefined' ? global : typeof window !== 'undefined' ? window : typeof self !== 'undefined' ? self : {}).Uint8Array || function () {};
+function _uint8ArrayToBuffer(chunk) {
+  return Buffer.from(chunk);
+}
+function _isUint8Array(obj) {
+  return Buffer.isBuffer(obj) || obj instanceof OurUint8Array;
+}
+var destroyImpl = require('./internal/streams/destroy');
+var _require = require('./internal/streams/state'),
+  getHighWaterMark = _require.getHighWaterMark;
+var _require$codes = require('../errors').codes,
+  ERR_INVALID_ARG_TYPE = _require$codes.ERR_INVALID_ARG_TYPE,
+  ERR_METHOD_NOT_IMPLEMENTED = _require$codes.ERR_METHOD_NOT_IMPLEMENTED,
+  ERR_MULTIPLE_CALLBACK = _require$codes.ERR_MULTIPLE_CALLBACK,
+  ERR_STREAM_CANNOT_PIPE = _require$codes.ERR_STREAM_CANNOT_PIPE,
+  ERR_STREAM_DESTROYED = _require$codes.ERR_STREAM_DESTROYED,
+  ERR_STREAM_NULL_VALUES = _require$codes.ERR_STREAM_NULL_VALUES,
+  ERR_STREAM_WRITE_AFTER_END = _require$codes.ERR_STREAM_WRITE_AFTER_END,
+  ERR_UNKNOWN_ENCODING = _require$codes.ERR_UNKNOWN_ENCODING;
+var errorOrDestroy = destroyImpl.errorOrDestroy;
+require('inherits')(Writable, Stream);
+function nop() {}
+function WritableState(options, stream, isDuplex) {
+  Duplex = Duplex || require('./_stream_duplex');
+  options = options || {};
+
+  // Duplex streams are both readable and writable, but share
+  // the same options object.
+  // However, some cases require setting options to different
+  // values for the readable and the writable sides of the duplex stream,
+  // e.g. options.readableObjectMode vs. options.writableObjectMode, etc.
+  if (typeof isDuplex !== 'boolean') isDuplex = stream instanceof Duplex;
+
+  // object stream flag to indicate whether or not this stream
+  // contains buffers or objects.
+  this.objectMode = !!options.objectMode;
+  if (isDuplex) this.objectMode = this.objectMode || !!options.writableObjectMode;
+
+  // the point at which write() starts returning false
+  // Note: 0 is a valid value, means that we always return false if
+  // the entire buffer is not flushed immediately on write()
+  this.highWaterMark = getHighWaterMark(this, options, 'writableHighWaterMark', isDuplex);
+
+  // if _final has been called
+  this.finalCalled = false;
+
+  // drain event flag.
+  this.needDrain = false;
+  // at the start of calling end()
+  this.ending = false;
+  // when end() has been called, and returned
+  this.ended = false;
+  // when 'finish' is emitted
+  this.finished = false;
+
+  // has it been destroyed
+  this.destroyed = false;
+
+  // should we decode strings into buffers before passing to _write?
+  // this is here so that some node-core streams can optimize string
+  // handling at a lower level.
+  var noDecode = options.decodeStrings === false;
+  this.decodeStrings = !noDecode;
+
+  // Crypto is kind of old and crusty.  Historically, its default string
+  // encoding is 'binary' so we have to make this configurable.
+  // Everything else in the universe uses 'utf8', though.
+  this.defaultEncoding = options.defaultEncoding || 'utf8';
+
+  // not an actual buffer we keep track of, but a measurement
+  // of how much we're waiting to get pushed to some underlying
+  // socket or file.
+  this.length = 0;
+
+  // a flag to see when we're in the middle of a write.
+  this.writing = false;
+
+  // when true all writes will be buffered until .uncork() call
+  this.corked = 0;
+
+  // a flag to be able to tell if the onwrite cb is called immediately,
+  // or on a later tick.  We set this to true at first, because any
+  // actions that shouldn't happen until "later" should generally also
+  // not happen before the first write call.
+  this.sync = true;
+
+  // a flag to know if we're processing previously buffered items, which
+  // may call the _write() callback in the same tick, so that we don't
+  // end up in an overlapped onwrite situation.
+  this.bufferProcessing = false;
+
+  // the callback that's passed to _write(chunk,cb)
+  this.onwrite = function (er) {
+    onwrite(stream, er);
+  };
+
+  // the callback that the user supplies to write(chunk,encoding,cb)
+  this.writecb = null;
+
+  // the amount that is being written when _write is called.
+  this.writelen = 0;
+  this.bufferedRequest = null;
+  this.lastBufferedRequest = null;
+
+  // number of pending user-supplied write callbacks
+  // this must be 0 before 'finish' can be emitted
+  this.pendingcb = 0;
+
+  // emit prefinish if the only thing we're waiting for is _write cbs
+  // This is relevant for synchronous Transform streams
+  this.prefinished = false;
+
+  // True if the error was already emitted and should not be thrown again
+  this.errorEmitted = false;
+
+  // Should close be emitted on destroy. Defaults to true.
+  this.emitClose = options.emitClose !== false;
+
+  // Should .destroy() be called after 'finish' (and potentially 'end')
+  this.autoDestroy = !!options.autoDestroy;
+
+  // count buffered requests
+  this.bufferedRequestCount = 0;
+
+  // allocate the first CorkedRequest, there is always
+  // one allocated and free to use, and we maintain at most two
+  this.corkedRequestsFree = new CorkedRequest(this);
+}
+WritableState.prototype.getBuffer = function getBuffer() {
+  var current = this.bufferedRequest;
+  var out = [];
+  while (current) {
+    out.push(current);
+    current = current.next;
+  }
+  return out;
+};
+(function () {
+  try {
+    Object.defineProperty(WritableState.prototype, 'buffer', {
+      get: internalUtil.deprecate(function writableStateBufferGetter() {
+        return this.getBuffer();
+      }, '_writableState.buffer is deprecated. Use _writableState.getBuffer ' + 'instead.', 'DEP0003')
+    });
+  } catch (_) {}
+})();
+
+// Test _writableState for inheritance to account for Duplex streams,
+// whose prototype chain only points to Readable.
+var realHasInstance;
+if (typeof Symbol === 'function' && Symbol.hasInstance && typeof Function.prototype[Symbol.hasInstance] === 'function') {
+  realHasInstance = Function.prototype[Symbol.hasInstance];
+  Object.defineProperty(Writable, Symbol.hasInstance, {
+    value: function value(object) {
+      if (realHasInstance.call(this, object)) return true;
+      if (this !== Writable) return false;
+      return object && object._writableState instanceof WritableState;
+    }
+  });
+} else {
+  realHasInstance = function realHasInstance(object) {
+    return object instanceof this;
+  };
+}
+function Writable(options) {
+  Duplex = Duplex || require('./_stream_duplex');
+
+  // Writable ctor is applied to Duplexes, too.
+  // `realHasInstance` is necessary because using plain `instanceof`
+  // would return false, as no `_writableState` property is attached.
+
+  // Trying to use the custom `instanceof` for Writable here will also break the
+  // Node.js LazyTransform implementation, which has a non-trivial getter for
+  // `_writableState` that would lead to infinite recursion.
+
+  // Checking for a Stream.Duplex instance is faster here instead of inside
+  // the WritableState constructor, at least with V8 6.5
+  var isDuplex = this instanceof Duplex;
+  if (!isDuplex && !realHasInstance.call(Writable, this)) return new Writable(options);
+  this._writableState = new WritableState(options, this, isDuplex);
+
+  // legacy.
+  this.writable = true;
+  if (options) {
+    if (typeof options.write === 'function') this._write = options.write;
+    if (typeof options.writev === 'function') this._writev = options.writev;
+    if (typeof options.destroy === 'function') this._destroy = options.destroy;
+    if (typeof options.final === 'function') this._final = options.final;
+  }
+  Stream.call(this);
+}
+
+// Otherwise people can pipe Writable streams, which is just wrong.
+Writable.prototype.pipe = function () {
+  errorOrDestroy(this, new ERR_STREAM_CANNOT_PIPE());
+};
+function writeAfterEnd(stream, cb) {
+  var er = new ERR_STREAM_WRITE_AFTER_END();
+  // TODO: defer error events consistently everywhere, not just the cb
+  errorOrDestroy(stream, er);
+  process.nextTick(cb, er);
+}
+
+// Checks that a user-supplied chunk is valid, especially for the particular
+// mode the stream is in. Currently this means that `null` is never accepted
+// and undefined/non-string values are only allowed in object mode.
+function validChunk(stream, state, chunk, cb) {
+  var er;
+  if (chunk === null) {
+    er = new ERR_STREAM_NULL_VALUES();
+  } else if (typeof chunk !== 'string' && !state.objectMode) {
+    er = new ERR_INVALID_ARG_TYPE('chunk', ['string', 'Buffer'], chunk);
+  }
+  if (er) {
+    errorOrDestroy(stream, er);
+    process.nextTick(cb, er);
+    return false;
+  }
+  return true;
+}
+Writable.prototype.write = function (chunk, encoding, cb) {
+  var state = this._writableState;
+  var ret = false;
+  var isBuf = !state.objectMode && _isUint8Array(chunk);
+  if (isBuf && !Buffer.isBuffer(chunk)) {
+    chunk = _uint8ArrayToBuffer(chunk);
+  }
+  if (typeof encoding === 'function') {
+    cb = encoding;
+    encoding = null;
+  }
+  if (isBuf) encoding = 'buffer';else if (!encoding) encoding = state.defaultEncoding;
+  if (typeof cb !== 'function') cb = nop;
+  if (state.ending) writeAfterEnd(this, cb);else if (isBuf || validChunk(this, state, chunk, cb)) {
+    state.pendingcb++;
+    ret = writeOrBuffer(this, state, isBuf, chunk, encoding, cb);
+  }
+  return ret;
+};
+Writable.prototype.cork = function () {
+  this._writableState.corked++;
+};
+Writable.prototype.uncork = function () {
+  var state = this._writableState;
+  if (state.corked) {
+    state.corked--;
+    if (!state.writing && !state.corked && !state.bufferProcessing && state.bufferedRequest) clearBuffer(this, state);
+  }
+};
+Writable.prototype.setDefaultEncoding = function setDefaultEncoding(encoding) {
+  // node::ParseEncoding() requires lower case.
+  if (typeof encoding === 'string') encoding = encoding.toLowerCase();
+  if (!(['hex', 'utf8', 'utf-8', 'ascii', 'binary', 'base64', 'ucs2', 'ucs-2', 'utf16le', 'utf-16le', 'raw'].indexOf((encoding + '').toLowerCase()) > -1)) throw new ERR_UNKNOWN_ENCODING(encoding);
+  this._writableState.defaultEncoding = encoding;
+  return this;
+};
+Object.defineProperty(Writable.prototype, 'writableBuffer', {
+  // making it explicit this property is not enumerable
+  // because otherwise some prototype manipulation in
+  // userland will fail
+  enumerable: false,
+  get: function get() {
+    return this._writableState && this._writableState.getBuffer();
+  }
+});
+function decodeChunk(state, chunk, encoding) {
+  if (!state.objectMode && state.decodeStrings !== false && typeof chunk === 'string') {
+    chunk = Buffer.from(chunk, encoding);
+  }
+  return chunk;
+}
+Object.defineProperty(Writable.prototype, 'writableHighWaterMark', {
+  // making it explicit this property is not enumerable
+  // because otherwise some prototype manipulation in
+  // userland will fail
+  enumerable: false,
+  get: function get() {
+    return this._writableState.highWaterMark;
+  }
+});
+
+// if we're already writing something, then just put this
+// in the queue, and wait our turn.  Otherwise, call _write
+// If we return false, then we need a drain event, so set that flag.
+function writeOrBuffer(stream, state, isBuf, chunk, encoding, cb) {
+  if (!isBuf) {
+    var newChunk = decodeChunk(state, chunk, encoding);
+    if (chunk !== newChunk) {
+      isBuf = true;
+      encoding = 'buffer';
+      chunk = newChunk;
+    }
+  }
+  var len = state.objectMode ? 1 : chunk.length;
+  state.length += len;
+  var ret = state.length < state.highWaterMark;
+  // we must ensure that previous needDrain will not be reset to false.
+  if (!ret) state.needDrain = true;
+  if (state.writing || state.corked) {
+    var last = state.lastBufferedRequest;
+    state.lastBufferedRequest = {
+      chunk: chunk,
+      encoding: encoding,
+      isBuf: isBuf,
+      callback: cb,
+      next: null
+    };
+    if (last) {
+      last.next = state.lastBufferedRequest;
+    } else {
+      state.bufferedRequest = state.lastBufferedRequest;
+    }
+    state.bufferedRequestCount += 1;
+  } else {
+    doWrite(stream, state, false, len, chunk, encoding, cb);
+  }
+  return ret;
+}
+function doWrite(stream, state, writev, len, chunk, encoding, cb) {
+  state.writelen = len;
+  state.writecb = cb;
+  state.writing = true;
+  state.sync = true;
+  if (state.destroyed) state.onwrite(new ERR_STREAM_DESTROYED('write'));else if (writev) stream._writev(chunk, state.onwrite);else stream._write(chunk, encoding, state.onwrite);
+  state.sync = false;
+}
+function onwriteError(stream, state, sync, er, cb) {
+  --state.pendingcb;
+  if (sync) {
+    // defer the callback if we are being called synchronously
+    // to avoid piling up things on the stack
+    process.nextTick(cb, er);
+    // this can emit finish, and it will always happen
+    // after error
+    process.nextTick(finishMaybe, stream, state);
+    stream._writableState.errorEmitted = true;
+    errorOrDestroy(stream, er);
+  } else {
+    // the caller expect this to happen before if
+    // it is async
+    cb(er);
+    stream._writableState.errorEmitted = true;
+    errorOrDestroy(stream, er);
+    // this can emit finish, but finish must
+    // always follow error
+    finishMaybe(stream, state);
+  }
+}
+function onwriteStateUpdate(state) {
+  state.writing = false;
+  state.writecb = null;
+  state.length -= state.writelen;
+  state.writelen = 0;
+}
+function onwrite(stream, er) {
+  var state = stream._writableState;
+  var sync = state.sync;
+  var cb = state.writecb;
+  if (typeof cb !== 'function') throw new ERR_MULTIPLE_CALLBACK();
+  onwriteStateUpdate(state);
+  if (er) onwriteError(stream, state, sync, er, cb);else {
+    // Check if we're actually ready to finish, but don't emit yet
+    var finished = needFinish(state) || stream.destroyed;
+    if (!finished && !state.corked && !state.bufferProcessing && state.bufferedRequest) {
+      clearBuffer(stream, state);
+    }
+    if (sync) {
+      process.nextTick(afterWrite, stream, state, finished, cb);
+    } else {
+      afterWrite(stream, state, finished, cb);
+    }
+  }
+}
+function afterWrite(stream, state, finished, cb) {
+  if (!finished) onwriteDrain(stream, state);
+  state.pendingcb--;
+  cb();
+  finishMaybe(stream, state);
+}
+
+// Must force callback to be called on nextTick, so that we don't
+// emit 'drain' before the write() consumer gets the 'false' return
+// value, and has a chance to attach a 'drain' listener.
+function onwriteDrain(stream, state) {
+  if (state.length === 0 && state.needDrain) {
+    state.needDrain = false;
+    stream.emit('drain');
+  }
+}
+
+// if there's something in the buffer waiting, then process it
+function clearBuffer(stream, state) {
+  state.bufferProcessing = true;
+  var entry = state.bufferedRequest;
+  if (stream._writev && entry && entry.next) {
+    // Fast case, write everything using _writev()
+    var l = state.bufferedRequestCount;
+    var buffer = new Array(l);
+    var holder = state.corkedRequestsFree;
+    holder.entry = entry;
+    var count = 0;
+    var allBuffers = true;
+    while (entry) {
+      buffer[count] = entry;
+      if (!entry.isBuf) allBuffers = false;
+      entry = entry.next;
+      count += 1;
+    }
+    buffer.allBuffers = allBuffers;
+    doWrite(stream, state, true, state.length, buffer, '', holder.finish);
+
+    // doWrite is almost always async, defer these to save a bit of time
+    // as the hot path ends with doWrite
+    state.pendingcb++;
+    state.lastBufferedRequest = null;
+    if (holder.next) {
+      state.corkedRequestsFree = holder.next;
+      holder.next = null;
+    } else {
+      state.corkedRequestsFree = new CorkedRequest(state);
+    }
+    state.bufferedRequestCount = 0;
+  } else {
+    // Slow case, write chunks one-by-one
+    while (entry) {
+      var chunk = entry.chunk;
+      var encoding = entry.encoding;
+      var cb = entry.callback;
+      var len = state.objectMode ? 1 : chunk.length;
+      doWrite(stream, state, false, len, chunk, encoding, cb);
+      entry = entry.next;
+      state.bufferedRequestCount--;
+      // if we didn't call the onwrite immediately, then
+      // it means that we need to wait until it does.
+      // also, that means that the chunk and cb are currently
+      // being processed, so move the buffer counter past them.
+      if (state.writing) {
+        break;
+      }
+    }
+    if (entry === null) state.lastBufferedRequest = null;
+  }
+  state.bufferedRequest = entry;
+  state.bufferProcessing = false;
+}
+Writable.prototype._write = function (chunk, encoding, cb) {
+  cb(new ERR_METHOD_NOT_IMPLEMENTED('_write()'));
+};
+Writable.prototype._writev = null;
+Writable.prototype.end = function (chunk, encoding, cb) {
+  var state = this._writableState;
+  if (typeof chunk === 'function') {
+    cb = chunk;
+    chunk = null;
+    encoding = null;
+  } else if (typeof encoding === 'function') {
+    cb = encoding;
+    encoding = null;
+  }
+  if (chunk !== null && chunk !== undefined) this.write(chunk, encoding);
+
+  // .end() fully uncorks
+  if (state.corked) {
+    state.corked = 1;
+    this.uncork();
+  }
+
+  // ignore unnecessary end() calls.
+  if (!state.ending) endWritable(this, state, cb);
+  return this;
+};
+Object.defineProperty(Writable.prototype, 'writableLength', {
+  // making it explicit this property is not enumerable
+  // because otherwise some prototype manipulation in
+  // userland will fail
+  enumerable: false,
+  get: function get() {
+    return this._writableState.length;
+  }
+});
+function needFinish(state) {
+  return state.ending && state.length === 0 && state.bufferedRequest === null && !state.finished && !state.writing;
+}
+function callFinal(stream, state) {
+  stream._final(function (err) {
+    state.pendingcb--;
+    if (err) {
+      errorOrDestroy(stream, err);
+    }
+    state.prefinished = true;
+    stream.emit('prefinish');
+    finishMaybe(stream, state);
+  });
+}
+function prefinish(stream, state) {
+  if (!state.prefinished && !state.finalCalled) {
+    if (typeof stream._final === 'function' && !state.destroyed) {
+      state.pendingcb++;
+      state.finalCalled = true;
+      process.nextTick(callFinal, stream, state);
+    } else {
+      state.prefinished = true;
+      stream.emit('prefinish');
+    }
+  }
+}
+function finishMaybe(stream, state) {
+  var need = needFinish(state);
+  if (need) {
+    prefinish(stream, state);
+    if (state.pendingcb === 0) {
+      state.finished = true;
+      stream.emit('finish');
+      if (state.autoDestroy) {
+        // In case of duplex streams we need a way to detect
+        // if the readable side is ready for autoDestroy as well
+        var rState = stream._readableState;
+        if (!rState || rState.autoDestroy && rState.endEmitted) {
+          stream.destroy();
+        }
+      }
+    }
+  }
+  return need;
+}
+function endWritable(stream, state, cb) {
+  state.ending = true;
+  finishMaybe(stream, state);
+  if (cb) {
+    if (state.finished) process.nextTick(cb);else stream.once('finish', cb);
+  }
+  state.ended = true;
+  stream.writable = false;
+}
+function onCorkedFinish(corkReq, state, err) {
+  var entry = corkReq.entry;
+  corkReq.entry = null;
+  while (entry) {
+    var cb = entry.callback;
+    state.pendingcb--;
+    cb(err);
+    entry = entry.next;
+  }
+
+  // reuse the free corkReq.
+  state.corkedRequestsFree.next = corkReq;
+}
+Object.defineProperty(Writable.prototype, 'destroyed', {
+  // making it explicit this property is not enumerable
+  // because otherwise some prototype manipulation in
+  // userland will fail
+  enumerable: false,
+  get: function get() {
+    if (this._writableState === undefined) {
+      return false;
+    }
+    return this._writableState.destroyed;
+  },
+  set: function set(value) {
+    // we ignore the value if the stream
+    // has not been initialized yet
+    if (!this._writableState) {
+      return;
+    }
+
+    // backward compatibility, the user is explicitly
+    // managing destroyed
+    this._writableState.destroyed = value;
+  }
+});
+Writable.prototype.destroy = destroyImpl.destroy;
+Writable.prototype._undestroy = destroyImpl.undestroy;
+Writable.prototype._destroy = function (err, cb) {
+  cb(err);
+};

node_modules/tar-stream/node_modules/readable-stream/lib/internal/streams/async_iterator.js

@@ -0,0 +1,180 @@
+'use strict';
+
+var _Object$setPrototypeO;
+function _defineProperty(obj, key, value) { key = _toPropertyKey(key); if (key in obj) { Object.defineProperty(obj, key, { value: value, enumerable: true, configurable: true, writable: true }); } else { obj[key] = value; } return obj; }
+function _toPropertyKey(arg) { var key = _toPrimitive(arg, "string"); return typeof key === "symbol" ? key : String(key); }
+function _toPrimitive(input, hint) { if (typeof input !== "object" || input === null) return input; var prim = input[Symbol.toPrimitive]; if (prim !== undefined) { var res = prim.call(input, hint || "default"); if (typeof res !== "object") return res; throw new TypeError("@@toPrimitive must return a primitive value."); } return (hint === "string" ? String : Number)(input); }
+var finished = require('./end-of-stream');
+var kLastResolve = Symbol('lastResolve');
+var kLastReject = Symbol('lastReject');
+var kError = Symbol('error');
+var kEnded = Symbol('ended');
+var kLastPromise = Symbol('lastPromise');
+var kHandlePromise = Symbol('handlePromise');
+var kStream = Symbol('stream');
+function createIterResult(value, done) {
+  return {
+    value: value,
+    done: done
+  };
+}
+function readAndResolve(iter) {
+  var resolve = iter[kLastResolve];
+  if (resolve !== null) {
+    var data = iter[kStream].read();
+    // we defer if data is null
+    // we can be expecting either 'end' or
+    // 'error'
+    if (data !== null) {
+      iter[kLastPromise] = null;
+      iter[kLastResolve] = null;
+      iter[kLastReject] = null;
+      resolve(createIterResult(data, false));
+    }
+  }
+}
+function onReadable(iter) {
+  // we wait for the next tick, because it might
+  // emit an error with process.nextTick
+  process.nextTick(readAndResolve, iter);
+}
+function wrapForNext(lastPromise, iter) {
+  return function (resolve, reject) {
+    lastPromise.then(function () {
+      if (iter[kEnded]) {
+        resolve(createIterResult(undefined, true));
+        return;
+      }
+      iter[kHandlePromise](resolve, reject);
+    }, reject);
+  };
+}
+var AsyncIteratorPrototype = Object.getPrototypeOf(function () {});
+var ReadableStreamAsyncIteratorPrototype = Object.setPrototypeOf((_Object$setPrototypeO = {
+  get stream() {
+    return this[kStream];
+  },
+  next: function next() {
+    var _this = this;
+    // if we have detected an error in the meanwhile
+    // reject straight away
+    var error = this[kError];
+    if (error !== null) {
+      return Promise.reject(error);
+    }
+    if (this[kEnded]) {
+      return Promise.resolve(createIterResult(undefined, true));
+    }
+    if (this[kStream].destroyed) {
+      // We need to defer via nextTick because if .destroy(err) is
+      // called, the error will be emitted via nextTick, and
+      // we cannot guarantee that there is no error lingering around
+      // waiting to be emitted.
+      return new Promise(function (resolve, reject) {
+        process.nextTick(function () {
+          if (_this[kError]) {
+            reject(_this[kError]);
+          } else {
+            resolve(createIterResult(undefined, true));
+          }
+        });
+      });
+    }
+
+    // if we have multiple next() calls
+    // we will wait for the previous Promise to finish
+    // this logic is optimized to support for await loops,
+    // where next() is only called once at a time
+    var lastPromise = this[kLastPromise];
+    var promise;
+    if (lastPromise) {
+      promise = new Promise(wrapForNext(lastPromise, this));
+    } else {
+      // fast path needed to support multiple this.push()
+      // without triggering the next() queue
+      var data = this[kStream].read();
+      if (data !== null) {
+        return Promise.resolve(createIterResult(data, false));
+      }
+      promise = new Promise(this[kHandlePromise]);
+    }
+    this[kLastPromise] = promise;
+    return promise;
+  }
+}, _defineProperty(_Object$setPrototypeO, Symbol.asyncIterator, function () {
+  return this;
+}), _defineProperty(_Object$setPrototypeO, "return", function _return() {
+  var _this2 = this;
+  // destroy(err, cb) is a private API
+  // we can guarantee we have that here, because we control the
+  // Readable class this is attached to
+  return new Promise(function (resolve, reject) {
+    _this2[kStream].destroy(null, function (err) {
+      if (err) {
+        reject(err);
+        return;
+      }
+      resolve(createIterResult(undefined, true));
+    });
+  });
+}), _Object$setPrototypeO), AsyncIteratorPrototype);
+var createReadableStreamAsyncIterator = function createReadableStreamAsyncIterator(stream) {
+  var _Object$create;
+  var iterator = Object.create(ReadableStreamAsyncIteratorPrototype, (_Object$create = {}, _defineProperty(_Object$create, kStream, {
+    value: stream,
+    writable: true
+  }), _defineProperty(_Object$create, kLastResolve, {
+    value: null,
+    writable: true
+  }), _defineProperty(_Object$create, kLastReject, {
+    value: null,
+    writable: true
+  }), _defineProperty(_Object$create, kError, {
+    value: null,
+    writable: true
+  }), _defineProperty(_Object$create, kEnded, {
+    value: stream._readableState.endEmitted,
+    writable: true
+  }), _defineProperty(_Object$create, kHandlePromise, {
+    value: function value(resolve, reject) {
+      var data = iterator[kStream].read();
+      if (data) {
+        iterator[kLastPromise] = null;
+        iterator[kLastResolve] = null;
+        iterator[kLastReject] = null;
+        resolve(createIterResult(data, false));
+      } else {
+        iterator[kLastResolve] = resolve;
+        iterator[kLastReject] = reject;
+      }
+    },
+    writable: true
+  }), _Object$create));
+  iterator[kLastPromise] = null;
+  finished(stream, function (err) {
+    if (err && err.code !== 'ERR_STREAM_PREMATURE_CLOSE') {
+      var reject = iterator[kLastReject];
+      // reject if we are waiting for data in the Promise
+      // returned by next() and store the error
+      if (reject !== null) {
+        iterator[kLastPromise] = null;
+        iterator[kLastResolve] = null;
+        iterator[kLastReject] = null;
+        reject(err);
+      }
+      iterator[kError] = err;
+      return;
+    }
+    var resolve = iterator[kLastResolve];
+    if (resolve !== null) {
+      iterator[kLastPromise] = null;
+      iterator[kLastResolve] = null;
+      iterator[kLastReject] = null;
+      resolve(createIterResult(undefined, true));
+    }
+    iterator[kEnded] = true;
+  });
+  stream.on('readable', onReadable.bind(null, iterator));
+  return iterator;
+};
+module.exports = createReadableStreamAsyncIterator;

node_modules/tar-stream/node_modules/readable-stream/lib/internal/streams/buffer_list.js

@@ -0,0 +1,183 @@
+'use strict';
+
+function ownKeys(object, enumerableOnly) { var keys = Object.keys(object); if (Object.getOwnPropertySymbols) { var symbols = Object.getOwnPropertySymbols(object); enumerableOnly && (symbols = symbols.filter(function (sym) { return Object.getOwnPropertyDescriptor(object, sym).enumerable; })), keys.push.apply(keys, symbols); } return keys; }
+function _objectSpread(target) { for (var i = 1; i < arguments.length; i++) { var source = null != arguments[i] ? arguments[i] : {}; i % 2 ? ownKeys(Object(source), !0).forEach(function (key) { _defineProperty(target, key, source[key]); }) : Object.getOwnPropertyDescriptors ? Object.defineProperties(target, Object.getOwnPropertyDescriptors(source)) : ownKeys(Object(source)).forEach(function (key) { Object.defineProperty(target, key, Object.getOwnPropertyDescriptor(source, key)); }); } return target; }
+function _defineProperty(obj, key, value) { key = _toPropertyKey(key); if (key in obj) { Object.defineProperty(obj, key, { value: value, enumerable: true, configurable: true, writable: true }); } else { obj[key] = value; } return obj; }
+function _classCallCheck(instance, Constructor) { if (!(instance instanceof Constructor)) { throw new TypeError("Cannot call a class as a function"); } }
+function _defineProperties(target, props) { for (var i = 0; i < props.length; i++) { var descriptor = props[i]; descriptor.enumerable = descriptor.enumerable || false; descriptor.configurable = true; if ("value" in descriptor) descriptor.writable = true; Object.defineProperty(target, _toPropertyKey(descriptor.key), descriptor); } }
+function _createClass(Constructor, protoProps, staticProps) { if (protoProps) _defineProperties(Constructor.prototype, protoProps); if (staticProps) _defineProperties(Constructor, staticProps); Object.defineProperty(Constructor, "prototype", { writable: false }); return Constructor; }
+function _toPropertyKey(arg) { var key = _toPrimitive(arg, "string"); return typeof key === "symbol" ? key : String(key); }
+function _toPrimitive(input, hint) { if (typeof input !== "object" || input === null) return input; var prim = input[Symbol.toPrimitive]; if (prim !== undefined) { var res = prim.call(input, hint || "default"); if (typeof res !== "object") return res; throw new TypeError("@@toPrimitive must return a primitive value."); } return (hint === "string" ? String : Number)(input); }
+var _require = require('buffer'),
+  Buffer = _require.Buffer;
+var _require2 = require('util'),
+  inspect = _require2.inspect;
+var custom = inspect && inspect.custom || 'inspect';
+function copyBuffer(src, target, offset) {
+  Buffer.prototype.copy.call(src, target, offset);
+}
+module.exports = /*#__PURE__*/function () {
+  function BufferList() {
+    _classCallCheck(this, BufferList);
+    this.head = null;
+    this.tail = null;
+    this.length = 0;
+  }
+  _createClass(BufferList, [{
+    key: "push",
+    value: function push(v) {
+      var entry = {
+        data: v,
+        next: null
+      };
+      if (this.length > 0) this.tail.next = entry;else this.head = entry;
+      this.tail = entry;
+      ++this.length;
+    }
+  }, {
+    key: "unshift",
+    value: function unshift(v) {
+      var entry = {
+        data: v,
+        next: this.head
+      };
+      if (this.length === 0) this.tail = entry;
+      this.head = entry;
+      ++this.length;
+    }
+  }, {
+    key: "shift",
+    value: function shift() {
+      if (this.length === 0) return;
+      var ret = this.head.data;
+      if (this.length === 1) this.head = this.tail = null;else this.head = this.head.next;
+      --this.length;
+      return ret;
+    }
+  }, {
+    key: "clear",
+    value: function clear() {
+      this.head = this.tail = null;
+      this.length = 0;
+    }
+  }, {
+    key: "join",
+    value: function join(s) {
+      if (this.length === 0) return '';
+      var p = this.head;
+      var ret = '' + p.data;
+      while (p = p.next) ret += s + p.data;
+      return ret;
+    }
+  }, {
+    key: "concat",
+    value: function concat(n) {
+      if (this.length === 0) return Buffer.alloc(0);
+      var ret = Buffer.allocUnsafe(n >>> 0);
+      var p = this.head;
+      var i = 0;
+      while (p) {
+        copyBuffer(p.data, ret, i);
+        i += p.data.length;
+        p = p.next;
+      }
+      return ret;
+    }
+
+    // Consumes a specified amount of bytes or characters from the buffered data.
+  }, {
+    key: "consume",
+    value: function consume(n, hasStrings) {
+      var ret;
+      if (n < this.head.data.length) {
+        // `slice` is the same for buffers and strings.
+        ret = this.head.data.slice(0, n);
+        this.head.data = this.head.data.slice(n);
+      } else if (n === this.head.data.length) {
+        // First chunk is a perfect match.
+        ret = this.shift();
+      } else {
+        // Result spans more than one buffer.
+        ret = hasStrings ? this._getString(n) : this._getBuffer(n);
+      }
+      return ret;
+    }
+  }, {
+    key: "first",
+    value: function first() {
+      return this.head.data;
+    }
+
+    // Consumes a specified amount of characters from the buffered data.
+  }, {
+    key: "_getString",
+    value: function _getString(n) {
+      var p = this.head;
+      var c = 1;
+      var ret = p.data;
+      n -= ret.length;
+      while (p = p.next) {
+        var str = p.data;
+        var nb = n > str.length ? str.length : n;
+        if (nb === str.length) ret += str;else ret += str.slice(0, n);
+        n -= nb;
+        if (n === 0) {
+          if (nb === str.length) {
+            ++c;
+            if (p.next) this.head = p.next;else this.head = this.tail = null;
+          } else {
+            this.head = p;
+            p.data = str.slice(nb);
+          }
+          break;
+        }
+        ++c;
+      }
+      this.length -= c;
+      return ret;
+    }
+
+    // Consumes a specified amount of bytes from the buffered data.
+  }, {
+    key: "_getBuffer",
+    value: function _getBuffer(n) {
+      var ret = Buffer.allocUnsafe(n);
+      var p = this.head;
+      var c = 1;
+      p.data.copy(ret);
+      n -= p.data.length;
+      while (p = p.next) {
+        var buf = p.data;
+        var nb = n > buf.length ? buf.length : n;
+        buf.copy(ret, ret.length - n, 0, nb);
+        n -= nb;
+        if (n === 0) {
+          if (nb === buf.length) {
+            ++c;
+            if (p.next) this.head = p.next;else this.head = this.tail = null;
+          } else {
+            this.head = p;
+            p.data = buf.slice(nb);
+          }
+          break;
+        }
+        ++c;
+      }
+      this.length -= c;
+      return ret;
+    }
+
+    // Make sure the linked list only shows the minimal necessary information.
+  }, {
+    key: custom,
+    value: function value(_, options) {
+      return inspect(this, _objectSpread(_objectSpread({}, options), {}, {
+        // Only inspect one level.
+        depth: 0,
+        // It should not recurse.
+        customInspect: false
+      }));
+    }
+  }]);
+  return BufferList;
+}();

node_modules/tar-stream/node_modules/readable-stream/lib/internal/streams/destroy.js

@@ -0,0 +1,96 @@
+'use strict';
+
+// undocumented cb() API, needed for core, not for public API
+function destroy(err, cb) {
+  var _this = this;
+  var readableDestroyed = this._readableState && this._readableState.destroyed;
+  var writableDestroyed = this._writableState && this._writableState.destroyed;
+  if (readableDestroyed || writableDestroyed) {
+    if (cb) {
+      cb(err);
+    } else if (err) {
+      if (!this._writableState) {
+        process.nextTick(emitErrorNT, this, err);
+      } else if (!this._writableState.errorEmitted) {
+        this._writableState.errorEmitted = true;
+        process.nextTick(emitErrorNT, this, err);
+      }
+    }
+    return this;
+  }
+
+  // we set destroyed to true before firing error callbacks in order
+  // to make it re-entrance safe in case destroy() is called within callbacks
+
+  if (this._readableState) {
+    this._readableState.destroyed = true;
+  }
+
+  // if this is a duplex stream mark the writable part as destroyed as well
+  if (this._writableState) {
+    this._writableState.destroyed = true;
+  }
+  this._destroy(err || null, function (err) {
+    if (!cb && err) {
+      if (!_this._writableState) {
+        process.nextTick(emitErrorAndCloseNT, _this, err);
+      } else if (!_this._writableState.errorEmitted) {
+        _this._writableState.errorEmitted = true;
+        process.nextTick(emitErrorAndCloseNT, _this, err);
+      } else {
+        process.nextTick(emitCloseNT, _this);
+      }
+    } else if (cb) {
+      process.nextTick(emitCloseNT, _this);
+      cb(err);
+    } else {
+      process.nextTick(emitCloseNT, _this);
+    }
+  });
+  return this;
+}
+function emitErrorAndCloseNT(self, err) {
+  emitErrorNT(self, err);
+  emitCloseNT(self);
+}
+function emitCloseNT(self) {
+  if (self._writableState && !self._writableState.emitClose) return;
+  if (self._readableState && !self._readableState.emitClose) return;
+  self.emit('close');
+}
+function undestroy() {
+  if (this._readableState) {
+    this._readableState.destroyed = false;
+    this._readableState.reading = false;
+    this._readableState.ended = false;
+    this._readableState.endEmitted = false;
+  }
+  if (this._writableState) {
+    this._writableState.destroyed = false;
+    this._writableState.ended = false;
+    this._writableState.ending = false;
+    this._writableState.finalCalled = false;
+    this._writableState.prefinished = false;
+    this._writableState.finished = false;
+    this._writableState.errorEmitted = false;
+  }
+}
+function emitErrorNT(self, err) {
+  self.emit('error', err);
+}
+function errorOrDestroy(stream, err) {
+  // We have tests that rely on errors being emitted
+  // in the same tick, so changing this is semver major.
+  // For now when you opt-in to autoDestroy we allow
+  // the error to be emitted nextTick. In a future
+  // semver major update we should change the default to this.
+
+  var rState = stream._readableState;
+  var wState = stream._writableState;
+  if (rState && rState.autoDestroy || wState && wState.autoDestroy) stream.destroy(err);else stream.emit('error', err);
+}
+module.exports = {
+  destroy: destroy,
+  undestroy: undestroy,
+  errorOrDestroy: errorOrDestroy
+};

node_modules/tar-stream/node_modules/readable-stream/lib/internal/streams/end-of-stream.js

@@ -0,0 +1,86 @@
+// Ported from https://github.com/mafintosh/end-of-stream with
+// permission from the author, Mathias Buus (@mafintosh).
+
+'use strict';
+
+var ERR_STREAM_PREMATURE_CLOSE = require('../../../errors').codes.ERR_STREAM_PREMATURE_CLOSE;
+function once(callback) {
+  var called = false;
+  return function () {
+    if (called) return;
+    called = true;
+    for (var _len = arguments.length, args = new Array(_len), _key = 0; _key < _len; _key++) {
+      args[_key] = arguments[_key];
+    }
+    callback.apply(this, args);
+  };
+}
+function noop() {}
+function isRequest(stream) {
+  return stream.setHeader && typeof stream.abort === 'function';
+}
+function eos(stream, opts, callback) {
+  if (typeof opts === 'function') return eos(stream, null, opts);
+  if (!opts) opts = {};
+  callback = once(callback || noop);
+  var readable = opts.readable || opts.readable !== false && stream.readable;
+  var writable = opts.writable || opts.writable !== false && stream.writable;
+  var onlegacyfinish = function onlegacyfinish() {
+    if (!stream.writable) onfinish();
+  };
+  var writableEnded = stream._writableState && stream._writableState.finished;
+  var onfinish = function onfinish() {
+    writable = false;
+    writableEnded = true;
+    if (!readable) callback.call(stream);
+  };
+  var readableEnded = stream._readableState && stream._readableState.endEmitted;
+  var onend = function onend() {
+    readable = false;
+    readableEnded = true;
+    if (!writable) callback.call(stream);
+  };
+  var onerror = function onerror(err) {
+    callback.call(stream, err);
+  };
+  var onclose = function onclose() {
+    var err;
+    if (readable && !readableEnded) {
+      if (!stream._readableState || !stream._readableState.ended) err = new ERR_STREAM_PREMATURE_CLOSE();
+      return callback.call(stream, err);
+    }
+    if (writable && !writableEnded) {
+      if (!stream._writableState || !stream._writableState.ended) err = new ERR_STREAM_PREMATURE_CLOSE();
+      return callback.call(stream, err);
+    }
+  };
+  var onrequest = function onrequest() {
+    stream.req.on('finish', onfinish);
+  };
+  if (isRequest(stream)) {
+    stream.on('complete', onfinish);
+    stream.on('abort', onclose);
+    if (stream.req) onrequest();else stream.on('request', onrequest);
+  } else if (writable && !stream._writableState) {
+    // legacy streams
+    stream.on('end', onlegacyfinish);
+    stream.on('close', onlegacyfinish);
+  }
+  stream.on('end', onend);
+  stream.on('finish', onfinish);
+  if (opts.error !== false) stream.on('error', onerror);
+  stream.on('close', onclose);
+  return function () {
+    stream.removeListener('complete', onfinish);
+    stream.removeListener('abort', onclose);
+    stream.removeListener('request', onrequest);
+    if (stream.req) stream.req.removeListener('finish', onfinish);
+    stream.removeListener('end', onlegacyfinish);
+    stream.removeListener('close', onlegacyfinish);
+    stream.removeListener('finish', onfinish);
+    stream.removeListener('end', onend);
+    stream.removeListener('error', onerror);
+    stream.removeListener('close', onclose);
+  };
+}
+module.exports = eos;

node_modules/tar-stream/node_modules/readable-stream/lib/internal/streams/from-browser.js

@@ -0,0 +1,3 @@
+module.exports = function () {
+  throw new Error('Readable.from is not available in the browser')
+};

node_modules/tar-stream/node_modules/readable-stream/lib/internal/streams/from.js

@@ -0,0 +1,52 @@
+'use strict';
+
+function asyncGeneratorStep(gen, resolve, reject, _next, _throw, key, arg) { try { var info = gen[key](arg); var value = info.value; } catch (error) { reject(error); return; } if (info.done) { resolve(value); } else { Promise.resolve(value).then(_next, _throw); } }
+function _asyncToGenerator(fn) { return function () { var self = this, args = arguments; return new Promise(function (resolve, reject) { var gen = fn.apply(self, args); function _next(value) { asyncGeneratorStep(gen, resolve, reject, _next, _throw, "next", value); } function _throw(err) { asyncGeneratorStep(gen, resolve, reject, _next, _throw, "throw", err); } _next(undefined); }); }; }
+function ownKeys(object, enumerableOnly) { var keys = Object.keys(object); if (Object.getOwnPropertySymbols) { var symbols = Object.getOwnPropertySymbols(object); enumerableOnly && (symbols = symbols.filter(function (sym) { return Object.getOwnPropertyDescriptor(object, sym).enumerable; })), keys.push.apply(keys, symbols); } return keys; }
+function _objectSpread(target) { for (var i = 1; i < arguments.length; i++) { var source = null != arguments[i] ? arguments[i] : {}; i % 2 ? ownKeys(Object(source), !0).forEach(function (key) { _defineProperty(target, key, source[key]); }) : Object.getOwnPropertyDescriptors ? Object.defineProperties(target, Object.getOwnPropertyDescriptors(source)) : ownKeys(Object(source)).forEach(function (key) { Object.defineProperty(target, key, Object.getOwnPropertyDescriptor(source, key)); }); } return target; }
+function _defineProperty(obj, key, value) { key = _toPropertyKey(key); if (key in obj) { Object.defineProperty(obj, key, { value: value, enumerable: true, configurable: true, writable: true }); } else { obj[key] = value; } return obj; }
+function _toPropertyKey(arg) { var key = _toPrimitive(arg, "string"); return typeof key === "symbol" ? key : String(key); }
+function _toPrimitive(input, hint) { if (typeof input !== "object" || input === null) return input; var prim = input[Symbol.toPrimitive]; if (prim !== undefined) { var res = prim.call(input, hint || "default"); if (typeof res !== "object") return res; throw new TypeError("@@toPrimitive must return a primitive value."); } return (hint === "string" ? String : Number)(input); }
+var ERR_INVALID_ARG_TYPE = require('../../../errors').codes.ERR_INVALID_ARG_TYPE;
+function from(Readable, iterable, opts) {
+  var iterator;
+  if (iterable && typeof iterable.next === 'function') {
+    iterator = iterable;
+  } else if (iterable && iterable[Symbol.asyncIterator]) iterator = iterable[Symbol.asyncIterator]();else if (iterable && iterable[Symbol.iterator]) iterator = iterable[Symbol.iterator]();else throw new ERR_INVALID_ARG_TYPE('iterable', ['Iterable'], iterable);
+  var readable = new Readable(_objectSpread({
+    objectMode: true
+  }, opts));
+  // Reading boolean to protect against _read
+  // being called before last iteration completion.
+  var reading = false;
+  readable._read = function () {
+    if (!reading) {
+      reading = true;
+      next();
+    }
+  };
+  function next() {
+    return _next2.apply(this, arguments);
+  }
+  function _next2() {
+    _next2 = _asyncToGenerator(function* () {
+      try {
+        var _yield$iterator$next = yield iterator.next(),
+          value = _yield$iterator$next.value,
+          done = _yield$iterator$next.done;
+        if (done) {
+          readable.push(null);
+        } else if (readable.push(yield value)) {
+          next();
+        } else {
+          reading = false;
+        }
+      } catch (err) {
+        readable.destroy(err);
+      }
+    });
+    return _next2.apply(this, arguments);
+  }
+  return readable;
+}
+module.exports = from;

node_modules/tar-stream/node_modules/readable-stream/lib/internal/streams/pipeline.js

@@ -0,0 +1,86 @@
+// Ported from https://github.com/mafintosh/pump with
+// permission from the author, Mathias Buus (@mafintosh).
+
+'use strict';
+
+var eos;
+function once(callback) {
+  var called = false;
+  return function () {
+    if (called) return;
+    called = true;
+    callback.apply(void 0, arguments);
+  };
+}
+var _require$codes = require('../../../errors').codes,
+  ERR_MISSING_ARGS = _require$codes.ERR_MISSING_ARGS,
+  ERR_STREAM_DESTROYED = _require$codes.ERR_STREAM_DESTROYED;
+function noop(err) {
+  // Rethrow the error if it exists to avoid swallowing it
+  if (err) throw err;
+}
+function isRequest(stream) {
+  return stream.setHeader && typeof stream.abort === 'function';
+}
+function destroyer(stream, reading, writing, callback) {
+  callback = once(callback);
+  var closed = false;
+  stream.on('close', function () {
+    closed = true;
+  });
+  if (eos === undefined) eos = require('./end-of-stream');
+  eos(stream, {
+    readable: reading,
+    writable: writing
+  }, function (err) {
+    if (err) return callback(err);
+    closed = true;
+    callback();
+  });
+  var destroyed = false;
+  return function (err) {
+    if (closed) return;
+    if (destroyed) return;
+    destroyed = true;
+
+    // request.destroy just do .end - .abort is what we want
+    if (isRequest(stream)) return stream.abort();
+    if (typeof stream.destroy === 'function') return stream.destroy();
+    callback(err || new ERR_STREAM_DESTROYED('pipe'));
+  };
+}
+function call(fn) {
+  fn();
+}
+function pipe(from, to) {
+  return from.pipe(to);
+}
+function popCallback(streams) {
+  if (!streams.length) return noop;
+  if (typeof streams[streams.length - 1] !== 'function') return noop;
+  return streams.pop();
+}
+function pipeline() {
+  for (var _len = arguments.length, streams = new Array(_len), _key = 0; _key < _len; _key++) {
+    streams[_key] = arguments[_key];
+  }
+  var callback = popCallback(streams);
+  if (Array.isArray(streams[0])) streams = streams[0];
+  if (streams.length < 2) {
+    throw new ERR_MISSING_ARGS('streams');
+  }
+  var error;
+  var destroys = streams.map(function (stream, i) {
+    var reading = i < streams.length - 1;
+    var writing = i > 0;
+    return destroyer(stream, reading, writing, function (err) {
+      if (!error) error = err;
+      if (err) destroys.forEach(call);
+      if (reading) return;
+      destroys.forEach(call);
+      callback(error);
+    });
+  });
+  return streams.reduce(pipe);
+}
+module.exports = pipeline;

node_modules/tar-stream/node_modules/readable-stream/lib/internal/streams/state.js

@@ -0,0 +1,22 @@
+'use strict';
+
+var ERR_INVALID_OPT_VALUE = require('../../../errors').codes.ERR_INVALID_OPT_VALUE;
+function highWaterMarkFrom(options, isDuplex, duplexKey) {
+  return options.highWaterMark != null ? options.highWaterMark : isDuplex ? options[duplexKey] : null;
+}
+function getHighWaterMark(state, options, duplexKey, isDuplex) {
+  var hwm = highWaterMarkFrom(options, isDuplex, duplexKey);
+  if (hwm != null) {
+    if (!(isFinite(hwm) && Math.floor(hwm) === hwm) || hwm < 0) {
+      var name = isDuplex ? duplexKey : 'highWaterMark';
+      throw new ERR_INVALID_OPT_VALUE(name, hwm);
+    }
+    return Math.floor(hwm);
+  }
+
+  // Default value
+  return state.objectMode ? 16 : 16 * 1024;
+}
+module.exports = {
+  getHighWaterMark: getHighWaterMark
+};

node_modules/tar-stream/node_modules/readable-stream/lib/internal/streams/stream-browser.js

@@ -0,0 +1 @@
+module.exports = require('events').EventEmitter;

node_modules/tar-stream/node_modules/readable-stream/lib/internal/streams/stream.js

@@ -0,0 +1 @@
+module.exports = require('stream');

node_modules/tar-stream/node_modules/readable-stream/package.json

@@ -0,0 +1,68 @@
+{
+  "name": "readable-stream",
+  "version": "3.6.2",
+  "description": "Streams3, a user-land copy of the stream library from Node.js",
+  "main": "readable.js",
+  "engines": {
+    "node": ">= 6"
+  },
+  "dependencies": {
+    "inherits": "^2.0.3",
+    "string_decoder": "^1.1.1",
+    "util-deprecate": "^1.0.1"
+  },
+  "devDependencies": {
+    "@babel/cli": "^7.2.0",
+    "@babel/core": "^7.2.0",
+    "@babel/polyfill": "^7.0.0",
+    "@babel/preset-env": "^7.2.0",
+    "airtap": "0.0.9",
+    "assert": "^1.4.0",
+    "bl": "^2.0.0",
+    "deep-strict-equal": "^0.2.0",
+    "events.once": "^2.0.2",
+    "glob": "^7.1.2",
+    "gunzip-maybe": "^1.4.1",
+    "hyperquest": "^2.1.3",
+    "lolex": "^2.6.0",
+    "nyc": "^11.0.0",
+    "pump": "^3.0.0",
+    "rimraf": "^2.6.2",
+    "tap": "^12.0.0",
+    "tape": "^4.9.0",
+    "tar-fs": "^1.16.2",
+    "util-promisify": "^2.1.0"
+  },
+  "scripts": {
+    "test": "tap -J --no-esm test/parallel/*.js test/ours/*.js",
+    "ci": "TAP=1 tap --no-esm test/parallel/*.js test/ours/*.js | tee test.tap",
+    "test-browsers": "airtap --sauce-connect --loopback airtap.local -- test/browser.js",
+    "test-browser-local": "airtap --open --local -- test/browser.js",
+    "cover": "nyc npm test",
+    "report": "nyc report --reporter=lcov",
+    "update-browser-errors": "babel -o errors-browser.js errors.js"
+  },
+  "repository": {
+    "type": "git",
+    "url": "git://github.com/nodejs/readable-stream"
+  },
+  "keywords": [
+    "readable",
+    "stream",
+    "pipe"
+  ],
+  "browser": {
+    "util": false,
+    "worker_threads": false,
+    "./errors": "./errors-browser.js",
+    "./readable.js": "./readable-browser.js",
+    "./lib/internal/streams/from.js": "./lib/internal/streams/from-browser.js",
+    "./lib/internal/streams/stream.js": "./lib/internal/streams/stream-browser.js"
+  },
+  "nyc": {
+    "include": [
+      "lib/**.js"
+    ]
+  },
+  "license": "MIT"
+}

node_modules/tar-stream/node_modules/readable-stream/readable-browser.js

@@ -0,0 +1,9 @@
+exports = module.exports = require('./lib/_stream_readable.js');
+exports.Stream = exports;
+exports.Readable = exports;
+exports.Writable = require('./lib/_stream_writable.js');
+exports.Duplex = require('./lib/_stream_duplex.js');
+exports.Transform = require('./lib/_stream_transform.js');
+exports.PassThrough = require('./lib/_stream_passthrough.js');
+exports.finished = require('./lib/internal/streams/end-of-stream.js');
+exports.pipeline = require('./lib/internal/streams/pipeline.js');

node_modules/tar-stream/node_modules/readable-stream/readable.js

@@ -0,0 +1,16 @@
+var Stream = require('stream');
+if (process.env.READABLE_STREAM === 'disable' && Stream) {
+  module.exports = Stream.Readable;
+  Object.assign(module.exports, Stream);
+  module.exports.Stream = Stream;
+} else {
+  exports = module.exports = require('./lib/_stream_readable.js');
+  exports.Stream = Stream || exports;
+  exports.Readable = exports;
+  exports.Writable = require('./lib/_stream_writable.js');
+  exports.Duplex = require('./lib/_stream_duplex.js');
+  exports.Transform = require('./lib/_stream_transform.js');
+  exports.PassThrough = require('./lib/_stream_passthrough.js');
+  exports.finished = require('./lib/internal/streams/end-of-stream.js');
+  exports.pipeline = require('./lib/internal/streams/pipeline.js');
+}

node_modules/tar-stream/pack.js

@@ -0,0 +1,255 @@
+var constants = require('fs-constants')
+var eos = require('end-of-stream')
+var inherits = require('inherits')
+var alloc = Buffer.alloc
+
+var Readable = require('readable-stream').Readable
+var Writable = require('readable-stream').Writable
+var StringDecoder = require('string_decoder').StringDecoder
+
+var headers = require('./headers')
+
+var DMODE = parseInt('755', 8)
+var FMODE = parseInt('644', 8)
+
+var END_OF_TAR = alloc(1024)
+
+var noop = function () {}
+
+var overflow = function (self, size) {
+  size &= 511
+  if (size) self.push(END_OF_TAR.slice(0, 512 - size))
+}
+
+function modeToType (mode) {
+  switch (mode & constants.S_IFMT) {
+    case constants.S_IFBLK: return 'block-device'
+    case constants.S_IFCHR: return 'character-device'
+    case constants.S_IFDIR: return 'directory'
+    case constants.S_IFIFO: return 'fifo'
+    case constants.S_IFLNK: return 'symlink'
+  }
+
+  return 'file'
+}
+
+var Sink = function (to) {
+  Writable.call(this)
+  this.written = 0
+  this._to = to
+  this._destroyed = false
+}
+
+inherits(Sink, Writable)
+
+Sink.prototype._write = function (data, enc, cb) {
+  this.written += data.length
+  if (this._to.push(data)) return cb()
+  this._to._drain = cb
+}
+
+Sink.prototype.destroy = function () {
+  if (this._destroyed) return
+  this._destroyed = true
+  this.emit('close')
+}
+
+var LinkSink = function () {
+  Writable.call(this)
+  this.linkname = ''
+  this._decoder = new StringDecoder('utf-8')
+  this._destroyed = false
+}
+
+inherits(LinkSink, Writable)
+
+LinkSink.prototype._write = function (data, enc, cb) {
+  this.linkname += this._decoder.write(data)
+  cb()
+}
+
+LinkSink.prototype.destroy = function () {
+  if (this._destroyed) return
+  this._destroyed = true
+  this.emit('close')
+}
+
+var Void = function () {
+  Writable.call(this)
+  this._destroyed = false
+}
+
+inherits(Void, Writable)
+
+Void.prototype._write = function (data, enc, cb) {
+  cb(new Error('No body allowed for this entry'))
+}
+
+Void.prototype.destroy = function () {
+  if (this._destroyed) return
+  this._destroyed = true
+  this.emit('close')
+}
+
+var Pack = function (opts) {
+  if (!(this instanceof Pack)) return new Pack(opts)
+  Readable.call(this, opts)
+
+  this._drain = noop
+  this._finalized = false
+  this._finalizing = false
+  this._destroyed = false
+  this._stream = null
+}
+
+inherits(Pack, Readable)
+
+Pack.prototype.entry = function (header, buffer, callback) {
+  if (this._stream) throw new Error('already piping an entry')
+  if (this._finalized || this._destroyed) return
+
+  if (typeof buffer === 'function') {
+    callback = buffer
+    buffer = null
+  }
+
+  if (!callback) callback = noop
+
+  var self = this
+
+  if (!header.size || header.type === 'symlink') header.size = 0
+  if (!header.type) header.type = modeToType(header.mode)
+  if (!header.mode) header.mode = header.type === 'directory' ? DMODE : FMODE
+  if (!header.uid) header.uid = 0
+  if (!header.gid) header.gid = 0
+  if (!header.mtime) header.mtime = new Date()
+
+  if (typeof buffer === 'string') buffer = Buffer.from(buffer)
+  if (Buffer.isBuffer(buffer)) {
+    header.size = buffer.length
+    this._encode(header)
+    var ok = this.push(buffer)
+    overflow(self, header.size)
+    if (ok) process.nextTick(callback)
+    else this._drain = callback
+    return new Void()
+  }
+
+  if (header.type === 'symlink' && !header.linkname) {
+    var linkSink = new LinkSink()
+    eos(linkSink, function (err) {
+      if (err) { // stream was closed
+        self.destroy()
+        return callback(err)
+      }
+
+      header.linkname = linkSink.linkname
+      self._encode(header)
+      callback()
+    })
+
+    return linkSink
+  }
+
+  this._encode(header)
+
+  if (header.type !== 'file' && header.type !== 'contiguous-file') {
+    process.nextTick(callback)
+    return new Void()
+  }
+
+  var sink = new Sink(this)
+
+  this._stream = sink
+
+  eos(sink, function (err) {
+    self._stream = null
+
+    if (err) { // stream was closed
+      self.destroy()
+      return callback(err)
+    }
+
+    if (sink.written !== header.size) { // corrupting tar
+      self.destroy()
+      return callback(new Error('size mismatch'))
+    }
+
+    overflow(self, header.size)
+    if (self._finalizing) self.finalize()
+    callback()
+  })
+
+  return sink
+}
+
+Pack.prototype.finalize = function () {
+  if (this._stream) {
+    this._finalizing = true
+    return
+  }
+
+  if (this._finalized) return
+  this._finalized = true
+  this.push(END_OF_TAR)
+  this.push(null)
+}
+
+Pack.prototype.destroy = function (err) {
+  if (this._destroyed) return
+  this._destroyed = true
+
+  if (err) this.emit('error', err)
+  this.emit('close')
+  if (this._stream && this._stream.destroy) this._stream.destroy()
+}
+
+Pack.prototype._encode = function (header) {
+  if (!header.pax) {
+    var buf = headers.encode(header)
+    if (buf) {
+      this.push(buf)
+      return
+    }
+  }
+  this._encodePax(header)
+}
+
+Pack.prototype._encodePax = function (header) {
+  var paxHeader = headers.encodePax({
+    name: header.name,
+    linkname: header.linkname,
+    pax: header.pax
+  })
+
+  var newHeader = {
+    name: 'PaxHeader',
+    mode: header.mode,
+    uid: header.uid,
+    gid: header.gid,
+    size: paxHeader.length,
+    mtime: header.mtime,
+    type: 'pax-header',
+    linkname: header.linkname && 'PaxHeader',
+    uname: header.uname,
+    gname: header.gname,
+    devmajor: header.devmajor,
+    devminor: header.devminor
+  }
+
+  this.push(headers.encode(newHeader))
+  this.push(paxHeader)
+  overflow(this, paxHeader.length)
+
+  newHeader.size = header.size
+  newHeader.type = header.type
+  this.push(headers.encode(newHeader))
+}
+
+Pack.prototype._read = function (n) {
+  var drain = this._drain
+  this._drain = noop
+  drain()
+}
+
+module.exports = Pack

node_modules/tar-stream/package.json

@@ -0,0 +1,58 @@
+{
+  "name": "tar-stream",
+  "version": "2.2.0",
+  "description": "tar-stream is a streaming tar parser and generator and nothing else. It is streams2 and operates purely using streams which means you can easily extract/parse tarballs without ever hitting the file system.",
+  "author": "Mathias Buus <mathiasbuus@gmail.com>",
+  "dependencies": {
+    "bl": "^4.0.3",
+    "end-of-stream": "^1.4.1",
+    "fs-constants": "^1.0.0",
+    "inherits": "^2.0.3",
+    "readable-stream": "^3.1.1"
+  },
+  "devDependencies": {
+    "concat-stream": "^2.0.0",
+    "standard": "^12.0.1",
+    "tape": "^4.9.2"
+  },
+  "scripts": {
+    "test": "standard && tape test/extract.js test/pack.js",
+    "test-all": "standard && tape test/*.js"
+  },
+  "keywords": [
+    "tar",
+    "tarball",
+    "parse",
+    "parser",
+    "generate",
+    "generator",
+    "stream",
+    "stream2",
+    "streams",
+    "streams2",
+    "streaming",
+    "pack",
+    "extract",
+    "modify"
+  ],
+  "bugs": {
+    "url": "https://github.com/mafintosh/tar-stream/issues"
+  },
+  "homepage": "https://github.com/mafintosh/tar-stream",
+  "main": "index.js",
+  "files": [
+    "*.js",
+    "LICENSE"
+  ],
+  "directories": {
+    "test": "test"
+  },
+  "license": "MIT",
+  "repository": {
+    "type": "git",
+    "url": "git+https://github.com/mafintosh/tar-stream.git"
+  },
+  "engines": {
+    "node": ">=6"
+  }
+}

node_modules/tar-stream/sandbox.js

@@ -0,0 +1,11 @@
+const tar = require('tar-stream')
+const fs = require('fs')
+const path = require('path')
+const pipeline = require('pump') // eequire('stream').pipeline
+
+fs.createReadStream('test.tar')
+  .pipe(tar.extract())
+  .on('entry', function (header, stream, done) {
+    console.log(header.name)
+    pipeline(stream, fs.createWriteStream(path.join('/tmp', header.name)), done)
+  })