Save layersize on pull

Do not display size and virtual size on the cli.
Only display virtual size on the cli

commands.go

@@ -1200,7 +1200,7 @@ func (cli *DockerCli) CmdImages(args ...string) error {
 
 		w := tabwriter.NewWriter(cli.out, 20, 1, 3, ' ', 0)
 		if !*quiet {
-			fmt.Fprintln(w, "REPOSITORY\tTAG\tIMAGE ID\tCREATED\tSIZE")
+			fmt.Fprintln(w, "REPOSITORY\tTAG\tIMAGE ID\tCREATED\tVIRTUAL SIZE")
 		}
 
 		for _, out := range outs {
@@ -1213,12 +1213,7 @@ func (cli *DockerCli) CmdImages(args ...string) error {
 				}
 
 				if !*quiet {
-					fmt.Fprintf(w, "%s\t%s\t%s\t%s ago\t", repo, tag, out.ID, utils.HumanDuration(time.Now().UTC().Sub(time.Unix(out.Created, 0))))
-					if out.VirtualSize > 0 {
-						fmt.Fprintf(w, "%s (virtual %s)\n", utils.HumanSize(out.Size), utils.HumanSize(out.VirtualSize))
-					} else {
-						fmt.Fprintf(w, "%s\n", utils.HumanSize(out.Size))
-					}
+					fmt.Fprintf(w, "%s\t%s\t%s\t%s ago\t%s\n", repo, tag, out.ID, utils.HumanDuration(time.Now().UTC().Sub(time.Unix(out.Created, 0))), utils.HumanSize(out.VirtualSize))
 				} else {
 					fmt.Fprintln(w, out.ID)
 				}

docs/sources/commandline/cli.rst

@@ -237,8 +237,8 @@ Simple commit of an existing container
 	$ docker commit c3f279d17e0a  SvenDowideit/testimage:version3
 	f5283438590d
 	$ docker images | head
-	REPOSITORY                        TAG                 ID                  CREATED             SIZE
-	SvenDowideit/testimage            version3            f5283438590d        16 seconds ago      204.2 MB (virtual 335.7 MB)
+	REPOSITORY                        TAG                 ID                  CREATED             VIRTUAL SIZE
+	SvenDowideit/testimage            version3            f5283438590d        16 seconds ago      335.7 MB
 	
 
 Full -run example
@@ -481,16 +481,16 @@ Listing the most recently created images
 .. code-block:: bash
 
 	$ sudo docker images | head
-	REPOSITORY                    TAG                 IMAGE ID            CREATED             SIZE
-	<none>                        <none>              77af4d6b9913        19 hours ago        30.53 MB (virtual 1.089 GB)
-	committest                    latest              b6fa739cedf5        19 hours ago        30.53 MB (virtual 1.089 GB)
-	<none>                        <none>              78a85c484f71        19 hours ago        30.53 MB (virtual 1.089 GB)
-	docker                        latest              30557a29d5ab        20 hours ago        30.53 MB (virtual 1.089 GB)
-	<none>                        <none>              0124422dd9f9        20 hours ago        30.53 MB (virtual 1.089 GB)
-	<none>                        <none>              18ad6fad3402        22 hours ago        23.68 MB (virtual 1.082 GB)
-	<none>                        <none>              f9f1e26352f0        23 hours ago        30.46 MB (virtual 1.089 GB)
-	tryout                        latest              2629d1fa0b81        23 hours ago        16.4 kB (virtual 131.5 MB)
-	<none>                        <none>              5ed6274db6ce        24 hours ago        30.44 MB (virtual 1.089 GB)
+	REPOSITORY                    TAG                 IMAGE ID            CREATED             VIRTUAL SIZE
+	<none>                        <none>              77af4d6b9913        19 hours ago        1.089 GB
+	committest                    latest              b6fa739cedf5        19 hours ago        1.089 GB
+	<none>                        <none>              78a85c484f71        19 hours ago        1.089 GB
+	docker                        latest              30557a29d5ab        20 hours ago        1.089 GB
+	<none>                        <none>              0124422dd9f9        20 hours ago        1.089 GB
+	<none>                        <none>              18ad6fad3402        22 hours ago        1.082 GB
+	<none>                        <none>              f9f1e26352f0        23 hours ago        1.089 GB
+	tryout                        latest              2629d1fa0b81        23 hours ago        131.5 MB
+	<none>                        <none>              5ed6274db6ce        24 hours ago        1.089 GB
 
 Listing the full length image IDs
 ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
@@ -498,16 +498,16 @@ Listing the full length image IDs
 .. code-block:: bash
 
 	$ sudo docker images -notrunc | head
-	REPOSITORY                    TAG                 IMAGE ID                                                           CREATED             SIZE
-	<none>                        <none>              77af4d6b9913e693e8d0b4b294fa62ade6054e6b2f1ffb617ac955dd63fb0182   19 hours ago        30.53 MB (virtual 1.089 GB)
-	committest                    latest              b6fa739cedf5ea12a620a439402b6004d057da800f91c7524b5086a5e4749c9f   19 hours ago        30.53 MB (virtual 1.089 GB)
-	<none>                        <none>              78a85c484f71509adeaace20e72e941f6bdd2b25b4c75da8693efd9f61a37921   19 hours ago        30.53 MB (virtual 1.089 GB)
-	docker                        latest              30557a29d5abc51e5f1d5b472e79b7e296f595abcf19fe6b9199dbbc809c6ff4   20 hours ago        30.53 MB (virtual 1.089 GB)
-	<none>                        <none>              0124422dd9f9cf7ef15c0617cda3931ee68346455441d66ab8bdc5b05e9fdce5   20 hours ago        30.53 MB (virtual 1.089 GB)
-	<none>                        <none>              18ad6fad340262ac2a636efd98a6d1f0ea775ae3d45240d3418466495a19a81b   22 hours ago        23.68 MB (virtual 1.082 GB)
-	<none>                        <none>              f9f1e26352f0a3ba6a0ff68167559f64f3e21ff7ada60366e2d44a04befd1d3a   23 hours ago        30.46 MB (virtual 1.089 GB)
-	tryout                        latest              2629d1fa0b81b222fca63371ca16cbf6a0772d07759ff80e8d1369b926940074   23 hours ago        16.4 kB (virtual 131.5 MB)
-	<none>                        <none>              5ed6274db6ceb2397844896966ea239290555e74ef307030ebb01ff91b1914df   24 hours ago        30.44 MB (virtual 1.089 GB)
+	REPOSITORY                    TAG                 IMAGE ID                                                           CREATED             VIRTUAL SIZE
+	<none>                        <none>              77af4d6b9913e693e8d0b4b294fa62ade6054e6b2f1ffb617ac955dd63fb0182   19 hours ago        1.089 GB
+	committest                    latest              b6fa739cedf5ea12a620a439402b6004d057da800f91c7524b5086a5e4749c9f   19 hours ago        1.089 GB
+	<none>                        <none>              78a85c484f71509adeaace20e72e941f6bdd2b25b4c75da8693efd9f61a37921   19 hours ago        1.089 GB
+	docker                        latest              30557a29d5abc51e5f1d5b472e79b7e296f595abcf19fe6b9199dbbc809c6ff4   20 hours ago        1.089 GB
+	<none>                        <none>              0124422dd9f9cf7ef15c0617cda3931ee68346455441d66ab8bdc5b05e9fdce5   20 hours ago        1.089 GB
+	<none>                        <none>              18ad6fad340262ac2a636efd98a6d1f0ea775ae3d45240d3418466495a19a81b   22 hours ago        1.082 GB
+	<none>                        <none>              f9f1e26352f0a3ba6a0ff68167559f64f3e21ff7ada60366e2d44a04befd1d3a   23 hours ago        1.089 GB
+	tryout                        latest              2629d1fa0b81b222fca63371ca16cbf6a0772d07759ff80e8d1369b926940074   23 hours ago        131.5 MB
+	<none>                        <none>              5ed6274db6ceb2397844896966ea239290555e74ef307030ebb01ff91b1914df   24 hours ago        1.089 GB
 
 Displaying images visually
 ~~~~~~~~~~~~~~~~~~~~~~~~~~

graph.go

@@ -94,11 +94,25 @@ func (graph *Graph) Get(name string) (*Image, error) {
 		return nil, fmt.Errorf("Image stored at '%s' has wrong id '%s'", id, img.ID)
 	}
 	img.graph = graph
-	if img.Size == 0 {
-		size, err := utils.TreeSize(rootfs)
-		if err != nil {
-			return nil, fmt.Errorf("Error computing size of rootfs %s: %s", img.ID, err)
+
+	if img.Size < 0 {
+		var size int64
+		if img.Parent == "" {
+			if size, err = utils.TreeSize(rootfs); err != nil {
+				return nil, err
+			}
+		} else {
+			parentFs, err := graph.driver.Get(img.Parent)
+			if err != nil {
+				return nil, err
+			}
+			changes, err := archive.ChangesDirs(rootfs, parentFs)
+			if err != nil {
+				return nil, err
+			}
+			size = archive.ChangesSize(rootfs, changes)
 		}
+
 		img.Size = size
 		if err := img.SaveSize(graph.imageRoot(id)); err != nil {
 			return nil, err

image.go

@@ -51,6 +51,9 @@ func LoadImage(root string) (*Image, error) {
 		if !os.IsNotExist(err) {
 			return nil, err
 		}
+		// If the layersize file does not exist then set the size to a negative number
+		// because a layer size of 0 (zero) is valid
+		img.Size = -1
 	} else {
 		size, err := strconv.Atoi(string(buf))
 		if err != nil {
@@ -104,30 +107,29 @@ func StoreImage(img *Image, jsonData []byte, layerData archive.Archive, root, la
 				if err != nil {
 					return err
 				}
-				if size = archive.ChangesSize(layer, changes); err != nil {
-					return err
-				}
+				size = archive.ChangesSize(layer, changes)
 			}
 		}
 	}
 
-	// If raw json is provided, then use it
-	if jsonData != nil {
-		return ioutil.WriteFile(jsonPath(root), jsonData, 0600)
-	}
-	// Otherwise, unmarshal the image
-	if jsonData, err = json.Marshal(img); err != nil {
-		return err
-	}
-	if err := ioutil.WriteFile(jsonPath(root), jsonData, 0600); err != nil {
-		return err
-	}
-
 	img.Size = size
 	if err := img.SaveSize(root); err != nil {
 		return err
 	}
 
+	// If raw json is provided, then use it
+	if jsonData != nil {
+		if err := ioutil.WriteFile(jsonPath(root), jsonData, 0600); err != nil {
+			return err
+		}
+	} else {
+		if jsonData, err = json.Marshal(img); err != nil {
+			return err
+		}
+		if err := ioutil.WriteFile(jsonPath(root), jsonData, 0600); err != nil {
+			return err
+		}
+	}
 	return nil
 }
 

integration/commands_test.go

@@ -871,7 +871,7 @@ func TestImagesTree(t *testing.T) {
 			"(?m)   └─[0-9a-f]+.*",
 			"(?m)    └─[0-9a-f]+.*",
 			"(?m)      └─[0-9a-f]+.*",
-			fmt.Sprintf("(?m)^        └─%s Size: \\d+.\\d+ MB \\(virtual \\d+.\\d+ MB\\) Tags: test:latest", utils.TruncateID(image.ID)),
+			fmt.Sprintf("(?m)^        └─%s Size: \\d+ B \\(virtual \\d+.\\d+ MB\\) Tags: test:latest", utils.TruncateID(image.ID)),
 		}
 
 		compiledRegexps := []*regexp.Regexp{}