Remove Job from History API

a part of issue #12151

Signed-off-by: Hu Keping <hukeping@huawei.com>

api/server/server.go

@@ -434,13 +434,13 @@ func getImagesHistory(eng *engine.Engine, version version.Version, w http.Respon
 		return fmt.Errorf("Missing parameter")
 	}
 
-	var job = eng.Job("history", vars["name"])
-	streamJSON(job, w, false)
-
-	if err := job.Run(); err != nil {
+	name := vars["name"]
+	history, err := getDaemon(eng).Repositories().History(name)
+	if err != nil {
 		return err
 	}
-	return nil
+
+	return writeJSON(w, http.StatusOK, history)
 }
 
 func getContainersChanges(eng *engine.Engine, version version.Version, w http.ResponseWriter, r *http.Request, vars map[string]string) error {

api/server/server_unit_test.go

@@ -219,36 +219,6 @@ func TestLogsNoStreams(t *testing.T) {
 	}
 }
 
-func TestGetImagesHistory(t *testing.T) {
-	eng := engine.New()
-	imageName := "docker-test-image"
-	var called bool
-	eng.Register("history", func(job *engine.Job) error {
-		called = true
-		if len(job.Args) == 0 {
-			t.Fatal("Job arguments is empty")
-		}
-		if job.Args[0] != imageName {
-			t.Fatalf("name != '%s': %#v", imageName, job.Args[0])
-		}
-		v := &engine.Env{}
-		if _, err := v.WriteTo(job.Stdout); err != nil {
-			return err
-		}
-		return nil
-	})
-	r := serveRequest("GET", "/images/"+imageName+"/history", nil, eng, t)
-	if !called {
-		t.Fatalf("handler was not called")
-	}
-	if r.Code != http.StatusOK {
-		t.Fatalf("Got status %d, expected %d", r.Code, http.StatusOK)
-	}
-	if r.HeaderMap.Get("Content-Type") != "application/json" {
-		t.Fatalf("%#v\n", r)
-	}
-}
-
 func TestGetImagesByName(t *testing.T) {
 	eng := engine.New()
 	name := "image_name"

graph/history.go

@@ -1,24 +1,17 @@
 package graph
 
 import (
-	"encoding/json"
-	"fmt"
 	"strings"
 
 	"github.com/docker/docker/api/types"
-	"github.com/docker/docker/engine"
 	"github.com/docker/docker/image"
 	"github.com/docker/docker/utils"
 )
 
-func (s *TagStore) CmdHistory(job *engine.Job) error {
-	if n := len(job.Args); n != 1 {
-		return fmt.Errorf("Usage: %s IMAGE", job.Name)
-	}
-	name := job.Args[0]
+func (s *TagStore) History(name string) ([]*types.ImageHistory, error) {
 	foundImage, err := s.LookupImage(name)
 	if err != nil {
-		return err
+		return nil, err
 	}
 
 	lookupMap := make(map[string][]string)
@@ -32,10 +25,10 @@ func (s *TagStore) CmdHistory(job *engine.Job) error {
 		}
 	}
 
-	history := []types.ImageHistory{}
+	history := []*types.ImageHistory{}
 
 	err = foundImage.WalkHistory(func(img *image.Image) error {
-		history = append(history, types.ImageHistory{
+		history = append(history, &types.ImageHistory{
 			ID:        img.ID,
 			Created:   img.Created.Unix(),
 			CreatedBy: strings.Join(img.ContainerConfig.Cmd, " "),
@@ -45,9 +38,5 @@ func (s *TagStore) CmdHistory(job *engine.Job) error {
 		return nil
 	})
 
-	if err = json.NewEncoder(job.Stdout).Encode(history); err != nil {
-		return err
-	}
-
-	return nil
+	return history, err
 }

graph/service.go

@@ -17,7 +17,6 @@ func (s *TagStore) Install(eng *engine.Engine) error {
 		"image_inspect":  s.CmdLookup,
 		"image_tarlayer": s.CmdTarLayer,
 		"image_export":   s.CmdImageExport,
-		"history":        s.CmdHistory,
 		"viz":            s.CmdViz,
 		"load":           s.CmdLoad,
 		"import":         s.CmdImport,