start of implementing direct client access

images.go

@@ -1,6 +1,8 @@
 package main
 
 import (
+	"github.com/fsouza/go-dockerclient"
+
 	"bytes"
 	"encoding/json"
 	"fmt"
@@ -29,17 +31,54 @@ var imagesCommand ImagesCommand
 
 func (x *ImagesCommand) Execute(args []string) error {
 
+	var images *[]Image
+
+	stat, err := os.Stdin.Stat()
+	if err != nil {
+		return fmt.Errorf("error reading stdin stat", err)
+	}
+
+	if (stat.Mode() & os.ModeCharDevice) == 0 {
 		// read in stdin
 		stdin, err := ioutil.ReadAll(os.Stdin)
 		if err != nil {
 			return fmt.Errorf("error reading all input", err)
 		}
 
-	images, err := parseImagesJSON(stdin)
+		images, err = parseImagesJSON(stdin)
 		if err != nil {
 			return err
 		}
 
+	} else {
+
+		// grab directly from docker daemon
+		client, err := docker.NewClient("unix:///var/run/docker.sock")
+		if err != nil {
+			return err
+		}
+
+		clientImages, err := client.ListImages(docker.ListImagesOptions{All: true})
+		if err != nil {
+			return err
+		}
+
+		var ims []Image
+		for _, image := range clientImages {
+			// fmt.Println(image)
+			ims = append(ims, Image{
+				image.ID,
+				image.ParentID,
+				image.RepoTags,
+				image.VirtualSize,
+				image.Size,
+				image.Created,
+			})
+		}
+
+		images = &ims
+	}
+
 	if imagesCommand.Dot {
 		fmt.Printf(jsonToDot(images))
 	} else if imagesCommand.Tree {