deps: upgrade npm to 5.8.0

PR-URL: https://github.com/nodejs/node/pull/19560
Fixes: https://github.com/nodejs/node/issues/19271
Reviewed-By: Michaël Zasso <targos@protonmail.com>
Reviewed-By: Myles Borins <myles.borins@gmail.com>

1 files changed, 56 insertions, 0 deletions

diff --git a/deps/npm/node_modules/cacache/node_modules/mississippi/node_modules/pumpify/index.js b/deps/npm/node_modules/cacache/node_modules/mississippi/node_modules/pumpify/index.js
new file mode 100644
index 0000000000..45bb987e85
--- /dev/null
+++ b/deps/npm/node_modules/cacache/node_modules/mississippi/node_modules/pumpify/index.js
@@ -0,0 +1,56 @@
+var pump = require('pump')
+var inherits = require('inherits')
+var Duplexify = require('duplexify')
+
+var toArray = function(args) {
+  if (!args.length) return []
+  return Array.isArray(args[0]) ? args[0] : Array.prototype.slice.call(args)
+}
+
+var define = function(opts) {
+  var Pumpify = function() {
+    var streams = toArray(arguments)
+    if (!(this instanceof Pumpify)) return new Pumpify(streams)
+    Duplexify.call(this, null, null, opts)
+    if (streams.length) this.setPipeline(streams)
+  }
+
+  inherits(Pumpify, Duplexify)
+
+  Pumpify.prototype.setPipeline = function() {
+    var streams = toArray(arguments)
+    var self = this
+    var ended = false
+    var w = streams[0]
+    var r = streams[streams.length-1]
+
+    r = r.readable ? r : null
+    w = w.writable ? w : null
+
+    var onclose = function() {
+      streams[0].emit('error', new Error('stream was destroyed'))
+    }
+
+    this.on('close', onclose)
+    this.on('prefinish', function() {
+      if (!ended) self.cork()
+    })
+
+    pump(streams, function(err) {
+      self.removeListener('close', onclose)
+      if (err) return self.destroy(err)
+      ended = true
+      self.uncork()
+    })
+
+    if (this.destroyed) return onclose()
+    this.setWritable(w)
+    this.setReadable(r)
+  }
+
+  return Pumpify
+}
+
+module.exports = define({destroy:false})
+module.exports.obj = define({destroy:false, objectMode:true, highWaterMark:16})
+module.exports.ctor = define