Reinstalled with --fix

node_modules/tar-stream/headers.js

@@ -0,0 +1,283 @@
+var toBuffer = require('to-buffer')
+var alloc = require('buffer-alloc')
+
+var ZEROS = '0000000000000000000'
+var SEVENS = '7777777777777777777'
+var ZERO_OFFSET = '0'.charCodeAt(0)
+var USTAR = 'ustar\x0000'
+var MASK = parseInt('7777', 8)
+
+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 zero = false
+  var tuple = []
+  for (var i = buf.length - 1; i > 0; i--) {
+    var byte = buf[i]
+    if (positive) tuple.push(byte)
+    else if (zero && byte === 0) tuple.push(0)
+    else if (zero) {
+      zero = false
+      tuple.push(0x100 - 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 toBuffer(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)
+
+  buf.write(USTAR, 257)
+  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) {
+  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)
+
+  if (buf[345]) name = decodeStr(buf, 345, 155, filenameEncoding) + '/' + name
+
+  // to support old tar versions that use trailing / to indicate dirs
+  if (typeflag === 0 && name && name[name.length - 1] === '/') typeflag = 5
+
+  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?')
+
+  return {
+    name: name,
+    mode: mode,
+    uid: uid,
+    gid: gid,
+    size: size,
+    mtime: new Date(1000 * mtime),
+    type: type,
+    linkname: linkname,
+    uname: uname,
+    gname: gname,
+    devmajor: devmajor,
+    devminor: devminor
+  }
+}