update

node_modules/readdirp/stream-api.js

@@ -0,0 +1,98 @@
+'use strict';
+
+var stream = require('readable-stream');
+var util = require('util');
+
+var Readable = stream.Readable;
+
+module.exports = ReaddirpReadable;
+
+util.inherits(ReaddirpReadable, Readable);
+
+function ReaddirpReadable (opts) {
+  if (!(this instanceof ReaddirpReadable)) return new ReaddirpReadable(opts);
+
+  opts = opts || {};
+
+  opts.objectMode = true;
+  Readable.call(this, opts);
+
+  // backpressure not implemented at this point
+  this.highWaterMark = Infinity;
+
+  this._destroyed = false;
+  this._paused = false;
+  this._warnings = [];
+  this._errors = [];
+
+  this._pauseResumeErrors();
+}
+
+var proto = ReaddirpReadable.prototype;
+
+proto._pauseResumeErrors = function () {
+  var self = this;
+  self.on('pause', function () { self._paused = true });
+  self.on('resume', function () {
+    if (self._destroyed) return;
+    self._paused = false;
+
+    self._warnings.forEach(function (err) { self.emit('warn', err) });
+    self._warnings.length = 0;
+
+    self._errors.forEach(function (err) { self.emit('error', err) });
+    self._errors.length = 0;
+  })
+}
+
+// called for each entry
+proto._processEntry = function (entry) {
+  if (this._destroyed) return;
+  this.push(entry);
+}
+
+proto._read = function () { }
+
+proto.destroy = function () {
+  // when stream is destroyed it will emit nothing further, not even errors or warnings
+  this.push(null);
+  this.readable = false;
+  this._destroyed = true;
+  this.emit('close');
+}
+
+proto._done = function () {
+  this.push(null);
+}
+
+// we emit errors and warnings async since we may handle errors like invalid args
+// within the initial event loop before any event listeners subscribed
+proto._handleError = function (err) {
+  var self = this;
+  setImmediate(function () {
+    if (self._paused) return self._warnings.push(err);
+    if (!self._destroyed) self.emit('warn', err);
+  });
+}
+
+proto._handleFatalError = function (err) {
+  var self = this;
+  setImmediate(function () {
+    if (self._paused) return self._errors.push(err);
+    if (!self._destroyed) self.emit('error', err);
+  });
+}
+
+function createStreamAPI () {
+  var stream = new ReaddirpReadable();
+
+  return {
+      stream           :  stream
+    , processEntry     :  stream._processEntry.bind(stream)
+    , done             :  stream._done.bind(stream)
+    , handleError      :  stream._handleError.bind(stream)
+    , handleFatalError :  stream._handleFatalError.bind(stream)
+  };
+}
+
+module.exports = createStreamAPI;