This update provides:
1) workaround around the build failures. In
summary, it forces the download of some packages during the build
process.
2) update the set of packages that should go inside the vendor
directory
3) Update the dockerfile to use go 1.10
Change-Id: I2bfd090ce0f25b0c10aa214755ae2da7e5384d60
diff --git a/vendor/github.com/gorilla/websocket/prepared.go b/vendor/github.com/gorilla/websocket/prepared.go
new file mode 100644
index 0000000..74ec565
--- /dev/null
+++ b/vendor/github.com/gorilla/websocket/prepared.go
@@ -0,0 +1,102 @@
+// Copyright 2017 The Gorilla WebSocket Authors. All rights reserved.
+// Use of this source code is governed by a BSD-style
+// license that can be found in the LICENSE file.
+
+package websocket
+
+import (
+ "bytes"
+ "net"
+ "sync"
+ "time"
+)
+
+// PreparedMessage caches on the wire representations of a message payload.
+// Use PreparedMessage to efficiently send a message payload to multiple
+// connections. PreparedMessage is especially useful when compression is used
+// because the CPU and memory expensive compression operation can be executed
+// once for a given set of compression options.
+type PreparedMessage struct {
+ messageType int
+ data []byte
+ mu sync.Mutex
+ frames map[prepareKey]*preparedFrame
+}
+
+// prepareKey defines a unique set of options to cache prepared frames in PreparedMessage.
+type prepareKey struct {
+ isServer bool
+ compress bool
+ compressionLevel int
+}
+
+// preparedFrame contains data in wire representation.
+type preparedFrame struct {
+ once sync.Once
+ data []byte
+}
+
+// NewPreparedMessage returns an initialized PreparedMessage. You can then send
+// it to connection using WritePreparedMessage method. Valid wire
+// representation will be calculated lazily only once for a set of current
+// connection options.
+func NewPreparedMessage(messageType int, data []byte) (*PreparedMessage, error) {
+ pm := &PreparedMessage{
+ messageType: messageType,
+ frames: make(map[prepareKey]*preparedFrame),
+ data: data,
+ }
+
+ // Prepare a plain server frame.
+ _, frameData, err := pm.frame(prepareKey{isServer: true, compress: false})
+ if err != nil {
+ return nil, err
+ }
+
+ // To protect against caller modifying the data argument, remember the data
+ // copied to the plain server frame.
+ pm.data = frameData[len(frameData)-len(data):]
+ return pm, nil
+}
+
+func (pm *PreparedMessage) frame(key prepareKey) (int, []byte, error) {
+ pm.mu.Lock()
+ frame, ok := pm.frames[key]
+ if !ok {
+ frame = &preparedFrame{}
+ pm.frames[key] = frame
+ }
+ pm.mu.Unlock()
+
+ var err error
+ frame.once.Do(func() {
+ // Prepare a frame using a 'fake' connection.
+ // TODO: Refactor code in conn.go to allow more direct construction of
+ // the frame.
+ mu := make(chan bool, 1)
+ mu <- true
+ var nc prepareConn
+ c := &Conn{
+ conn: &nc,
+ mu: mu,
+ isServer: key.isServer,
+ compressionLevel: key.compressionLevel,
+ enableWriteCompression: true,
+ writeBuf: make([]byte, defaultWriteBufferSize+maxFrameHeaderSize),
+ }
+ if key.compress {
+ c.newCompressionWriter = compressNoContextTakeover
+ }
+ err = c.WriteMessage(pm.messageType, pm.data)
+ frame.data = nc.buf.Bytes()
+ })
+ return pm.messageType, frame.data, err
+}
+
+type prepareConn struct {
+ buf bytes.Buffer
+ net.Conn
+}
+
+func (pc *prepareConn) Write(p []byte) (int, error) { return pc.buf.Write(p) }
+func (pc *prepareConn) SetWriteDeadline(t time.Time) error { return nil }