deps: upgrade npm to 6.1.0

PR-URL: https://github.com/nodejs/node/pull/20190
Reviewed-By: Rich Trott <rtrott@gmail.com>
Reviewed-By: Ruben Bridgewater <ruben@bridgewater.de>
Reviewed-By: Tiancheng "Timothy" Gu <timothygu99@gmail.com>
Reviewed-By: Benjamin Gruenbaum <benjamingr@gmail.com>
Reviewed-By: Michaël Zasso <targos@protonmail.com>

1 files changed, 70 insertions, 0 deletions

diff --git a/deps/npm/node_modules/fstream/lib/collect.js b/deps/npm/node_modules/fstream/lib/collect.js
new file mode 100644
index 0000000000..e5d4f35833
--- /dev/null
+++ b/deps/npm/node_modules/fstream/lib/collect.js
@@ -0,0 +1,70 @@
+module.exports = collect
+
+function collect (stream) {
+  if (stream._collected) return
+
+  if (stream._paused) return stream.on('resume', collect.bind(null, stream))
+
+  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)
+}