swarmd: remove unused engine/beam adapters.

Signed-off-by: Solomon Hykes <solomon@docker.com>

swarmd/swarmd.go

@@ -1,21 +1,17 @@
 package main
 
 import (
-	"bufio"
 	"fmt"
 	"log"
 	"github.com/codegangsta/cli"
 	"github.com/docker/libswarm/beam"
-	"github.com/docker/libswarm/beam/inmem"
 	beamutils "github.com/docker/libswarm/beam/utils"
 	"github.com/docker/libswarm/backends"
 	_ "github.com/dotcloud/docker/api/server"
-	"github.com/dotcloud/docker/engine"
 	"github.com/flynn/go-shlex"
 	"io"
 	"os"
 	"strings"
-	"sync"
 )
 
 func main() {
@@ -30,125 +26,6 @@ func main() {
 	app.Run(os.Args)
 }
 
-func EngineAsSender(eng *engine.Engine) beam.Sender {
-	r, w := inmem.Pipe()
-	go func() {
-		for {
-			msg, msgr, msgw, err := r.Receive(beam.R | beam.W)
-			if err != nil {
-				return
-			}
-			go func(msg *beam.Message, in beam.Receiver, out beam.Sender) {
-				job := eng.Job(msg.Name, msg.Args...)
-				stdout, _ := job.Stdout.AddPipe() // can't fail
-				stderr, _ := job.Stderr.AddPipe() // can't fail
-				stdinR, stdinW := io.Pipe()
-				defer stdinR.Close()
-				defer stdinW.Close()
-				job.Stdin.Add(stdinR)
-				log := func(src io.Reader) {
-					scanner := bufio.NewScanner(src)
-					for scanner.Scan() {
-						if scanner.Err() != nil {
-							return
-						}
-						if _, _, err := out.Send(&beam.Message{Name: "log", Args: []string{scanner.Text()}}, 0); err != nil {
-							return
-						}
-					}
-				}
-				var tasks sync.WaitGroup
-				tasks.Add(3)
-				go func() {
-					// Read from stdout, send "log" events
-					defer tasks.Done()
-					log(stdout)
-				}()
-				go func() {
-					// Read from stderr, send "log" events
-					// FIXME: how to differentiate stderr/stdout logs?
-					defer tasks.Done()
-					log(stderr)
-				}()
-				go func() {
-					// Receive events, send "log" events to stdin
-					defer tasks.Done()
-					for {
-						m, _, _, err := in.Receive(0)
-						if err != nil {
-							return
-						}
-						if m.Name == "log" {
-							if len(m.Args) < 1 {
-								continue
-							}
-							fmt.Fprintf(stdinW, "%s\n", strings.TrimRight(m.Args[0], "\r\n"))
-						}
-					}
-				}()
-				err := job.Run()
-				if err != nil {
-					out.Send(&beam.Message{Name: "error", Args: []string{err.Error()}}, 0)
-				}
-			}(msg, msgr, msgw)
-		}
-	}()
-	return w
-}
-
-func SenderAsEngine(s beam.Sender) *engine.Engine {
-	eng := engine.New()
-	eng.RegisterCatchall(func(job *engine.Job) engine.Status {
-		msg := &beam.Message{
-			Name: job.Name,
-			Args: job.Args,
-		}
-		// FIXME: serialize job.Env into a trailing argument
-		r, w, err := s.Send(msg, beam.R|beam.W)
-		if err != nil {
-			return job.Errorf("beam send: %v", err)
-		}
-		var tasks sync.WaitGroup
-		tasks.Add(1)
-		go func() {
-			defer tasks.Done()
-			in := bufio.NewScanner(job.Stdin)
-			for in.Scan() {
-				_, _, err := w.Send(&beam.Message{Name: "log", Args: []string{in.Text()}}, 0)
-				if err != nil {
-					return
-				}
-			}
-		}()
-		tasks.Add(1)
-		var status engine.Status = engine.StatusOK
-		go func() {
-			defer tasks.Done()
-			for {
-				msg, _, _, err := r.Receive(0)
-				if err != nil {
-					return
-				}
-				if msg.Name == "log" {
-					if len(msg.Args) < 1 {
-						continue
-					}
-					fmt.Fprintf(job.Stdout, "%s\n", strings.TrimRight(msg.Args[0], "\r\n"))
-				} else if msg.Name == "error" {
-					status = engine.StatusErr
-					if len(msg.Args) < 1 {
-						continue
-					}
-					fmt.Fprintf(job.Stderr, "%s\n", strings.TrimRight(msg.Args[0], "\r\n"))
-				}
-			}
-		}()
-		tasks.Wait()
-		return status
-	})
-	return eng
-}
-
 func cmdDaemon(c *cli.Context) {
 	if len(c.Args()) == 0 {
 		Fatalf("Usage: %s <proto>://<address> [<proto>://<address>]...\n", c.App.Name)