Add 'fstream' as a dependency.

node_modules/fstream/examples/deep-copy/lib/collect.js

@@ -0,0 +1,67 @@
+module.exports = collect
+
+function collect (stream) {
+  if (stream._collected) return
+
+  stream._collected = true
+  stream.pause()
+
+  stream.on("data", save)
+  stream.on("end", save)
+  var buf = []
+  function save (b) {
+    if (typeof b === "string") b = new Buffer(b)
+    if (Buffer.isBuffer(b) && !b.length) return
+    buf.push(b)
+  }
+
+  stream.on("entry", saveEntry)
+  var entryBuffer = []
+  function saveEntry (e) {
+    collect(e)
+    entryBuffer.push(e)
+  }
+
+  stream.on("proxy", proxyPause)
+  function proxyPause (p) {
+    p.pause()
+  }
+
+
+  // replace the pipe method with a new version that will
+  // unlock the buffered stuff.  if you just call .pipe()
+  // without a destination, then it'll re-play the events.
+  stream.pipe = (function (orig) { return function (dest) {
+    // console.error(" === open the pipes", dest && dest.path)
+
+    // let the entries flow through one at a time.
+    // Once they're all done, then we can resume completely.
+    var e = 0
+    ;(function unblockEntry () {
+      var entry = entryBuffer[e++]
+      // console.error(" ==== unblock entry", entry && entry.path)
+      if (!entry) return resume()
+      entry.on("end", unblockEntry)
+      if (dest) dest.add(entry)
+      else stream.emit("entry", entry)
+    })()
+
+    function resume () {
+      stream.removeListener("entry", saveEntry)
+      stream.removeListener("data", save)
+      stream.removeListener("end", save)
+
+      stream.pipe = orig
+      if (dest) stream.pipe(dest)
+
+      buf.forEach(function (b) {
+        if (b) stream.emit("data", b)
+        else stream.emit("end")
+      })
+
+      stream.resume()
+    }
+
+    return dest
+  }})(stream.pipe)
+}