Add 'fstream' as a dependency.

node_modules/fstream/lib/proxy-writer.js

@@ -0,0 +1,109 @@
+// A writer for when we don't know what kind of thing
+// the thing is.  That is, it's not explicitly set,
+// so we're going to make it whatever the thing already
+// is, or "File"
+//
+// Until then, collect all events.
+
+module.exports = ProxyWriter
+
+var Writer = require("./writer.js")
+  , getType = require("./get-type.js")
+  , inherits = require("inherits")
+  , collect = require("./collect.js")
+  , fs = require("fs")
+
+inherits(ProxyWriter, Writer)
+
+function ProxyWriter (props) {
+  var me = this
+  if (!(me instanceof ProxyWriter)) throw new Error(
+    "ProxyWriter must be called as constructor.")
+
+  me.props = props
+  me._needDrain = false
+
+  Writer.call(me, props)
+}
+
+ProxyWriter.prototype._stat = function () {
+  var me = this
+    , props = me.props
+    // stat the thing to see what the proxy should be.
+    , stat = props.follow ? "stat" : "lstat"
+
+  fs[stat](props.path, function (er, current) {
+    var type
+    if (er || !current) {
+      type = "File"
+    } else {
+      type = getType(current)
+    }
+
+    props[type] = true
+    props.type = me.type = type
+
+    me._old = current
+    me._addProxy(Writer(props, current))
+  })
+}
+
+ProxyWriter.prototype._addProxy = function (proxy) {
+  // console.error("~~ set proxy", this.path)
+  var me = this
+  if (me._proxy) {
+    return me.error("proxy already set")
+  }
+
+  me._proxy = proxy
+  ; [ "ready"
+    , "error"
+    , "close"
+    , "pipe"
+    , "drain"
+    , "warn"
+    ].forEach(function (ev) {
+      proxy.on(ev, me.emit.bind(me, ev))
+    })
+
+  me.emit("proxy", proxy)
+
+  var calls = me._buffer
+  calls.forEach(function (c) {
+    // console.error("~~ ~~ proxy buffered call", c[0], c[1])
+    proxy[c[0]].call(proxy, c[1])
+  })
+  me._buffer.length = 0
+  if (me._needsDrain) me.emit("drain")
+}
+
+ProxyWriter.prototype.add = function (entry) {
+  // console.error("~~ proxy add")
+  collect(entry)
+
+  if (!this._proxy) {
+    this._buffer.push(["add", [entry]])
+    this._needDrain = true
+    return false
+  }
+  return this._proxy.add(entry)
+}
+
+ProxyWriter.prototype.write = function (c) {
+  // console.error("~~ proxy write")
+  if (!this._proxy) {
+    this._buffer.push(["write", [c]])
+    this._needDrain = true
+    return false
+  }
+  return this._proxy.write(c)
+}
+
+ProxyWriter.prototype.end = function (c) {
+  // console.error("~~ proxy end")
+  if (!this._proxy) {
+    this._buffer.push(["end", c])
+    return false
+  }
+  return this._proxy.end(c)
+}