Remove archiver-utils dependency

server/libs/archiver/archiverUtils/readableStream/internal/streams/duplex.js

@@ -0,0 +1,128 @@
+// 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 prototype inheritance, this class
+// prototypically inherits from Readable, and then parasitically from
+// Writable.
+'use strict'
+
+const {
+  ObjectDefineProperties,
+  ObjectGetOwnPropertyDescriptor,
+  ObjectKeys,
+  ObjectSetPrototypeOf
+} = require('../../ours/primordials')
+
+module.exports = Duplex
+
+const Readable = require('./readable')
+
+const Writable = require('./writable')
+
+ObjectSetPrototypeOf(Duplex.prototype, Readable.prototype)
+ObjectSetPrototypeOf(Duplex, Readable)
+{
+  const keys = ObjectKeys(Writable.prototype) // Allow the keys array to be GC'ed.
+
+  for (let i = 0; i < keys.length; i++) {
+    const method = keys[i]
+    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)
+
+  if (options) {
+    this.allowHalfOpen = options.allowHalfOpen !== false
+
+    if (options.readable === false) {
+      this._readableState.readable = false
+      this._readableState.ended = true
+      this._readableState.endEmitted = true
+    }
+
+    if (options.writable === false) {
+      this._writableState.writable = false
+      this._writableState.ending = true
+      this._writableState.ended = true
+      this._writableState.finished = true
+    }
+  } else {
+    this.allowHalfOpen = true
+  }
+}
+
+ObjectDefineProperties(Duplex.prototype, {
+  writable: ObjectGetOwnPropertyDescriptor(Writable.prototype, 'writable'),
+  writableHighWaterMark: ObjectGetOwnPropertyDescriptor(Writable.prototype, 'writableHighWaterMark'),
+  writableObjectMode: ObjectGetOwnPropertyDescriptor(Writable.prototype, 'writableObjectMode'),
+  writableBuffer: ObjectGetOwnPropertyDescriptor(Writable.prototype, 'writableBuffer'),
+  writableLength: ObjectGetOwnPropertyDescriptor(Writable.prototype, 'writableLength'),
+  writableFinished: ObjectGetOwnPropertyDescriptor(Writable.prototype, 'writableFinished'),
+  writableCorked: ObjectGetOwnPropertyDescriptor(Writable.prototype, 'writableCorked'),
+  writableEnded: ObjectGetOwnPropertyDescriptor(Writable.prototype, 'writableEnded'),
+  writableNeedDrain: ObjectGetOwnPropertyDescriptor(Writable.prototype, 'writableNeedDrain'),
+  destroyed: {
+    get() {
+      if (this._readableState === undefined || this._writableState === undefined) {
+        return false
+      }
+
+      return this._readableState.destroyed && this._writableState.destroyed
+    },
+
+    set(value) {
+      // Backward compatibility, the user is explicitly
+      // managing destroyed.
+      if (this._readableState && this._writableState) {
+        this._readableState.destroyed = value
+        this._writableState.destroyed = value
+      }
+    }
+  }
+})
+let webStreamsAdapters // Lazy to avoid circular references
+
+function lazyWebStreams() {
+  if (webStreamsAdapters === undefined) webStreamsAdapters = {}
+  return webStreamsAdapters
+}
+
+Duplex.fromWeb = function (pair, options) {
+  return lazyWebStreams().newStreamDuplexFromReadableWritablePair(pair, options)
+}
+
+Duplex.toWeb = function (duplex) {
+  return lazyWebStreams().newReadableWritablePairFromDuplex(duplex)
+}
+
+let duplexify
+
+Duplex.from = function (body) {
+  if (!duplexify) {
+    duplexify = require('./duplexify')
+  }
+
+  return duplexify(body, 'body')
+}