Bumping k8s dependencies to 1.13

vendor/golang.org/x/tools/cmd/present/play.go

@@ -9,10 +9,21 @@ import (
 	"fmt"
 	"io/ioutil"
 	"net/http"
+	"net/url"
 	"path/filepath"
+	"runtime"
 	"time"
 
 	"golang.org/x/tools/godoc/static"
+	"golang.org/x/tools/playground/socket"
+	"golang.org/x/tools/present"
+
+	// This will register handlers at /compile and /share that will proxy to the
+	// respective endpoints at play.golang.org. This allows the frontend to call
+	// these endpoints without needing cross-origin request sharing (CORS).
+	// Note that this is imported regardless of whether the endpoints are used or
+	// not (in the case of a local socket connection, they are not called).
+	_ "golang.org/x/tools/playground"
 )
 
 var scripts = []string{"jquery.js", "jquery-ui.js", "playground.js", "play.js"}
@@ -41,3 +52,38 @@ func playScript(root, transport string) {
 		http.ServeContent(w, r, "", modTime, bytes.NewReader(b))
 	})
 }
+
+func initPlayground(basepath string, origin *url.URL) {
+	if !present.PlayEnabled {
+		return
+	}
+	if *usePlayground {
+		playScript(basepath, "HTTPTransport")
+		return
+	}
+
+	if *nativeClient {
+		// When specifying nativeClient, non-Go code cannot be executed
+		// because the NaCl setup doesn't support doing so.
+		socket.RunScripts = false
+		socket.Environ = func() []string {
+			if runtime.GOARCH == "amd64" {
+				return environ("GOOS=nacl", "GOARCH=amd64p32")
+			}
+			return environ("GOOS=nacl")
+		}
+	}
+	playScript(basepath, "SocketTransport")
+	http.Handle("/socket", socket.NewHandler(origin))
+}
+
+func playable(c present.Code) bool {
+	play := present.PlayEnabled && c.Play
+
+	// Restrict playable files to only Go source files when using play.golang.org,
+	// since there is no method to execute shell scripts there.
+	if *usePlayground {
+		return play && c.Ext == ".go"
+	}
+	return play
+}