refactor project structure; use subpackages

1 files changed, 0 insertions, 229 deletions

diff --git a/main.go b/main.go
deleted file mode 100644
index 6ea032c..0000000
--- a/main.go
+++ /dev/null
@@ -1,229 +0,0 @@
-package main
-
-import (
-	"bufio"
-	"encoding/json"
-	"fmt"
-	"io"
-	"os"
-
-	"log"
-
-	"github.com/docker/docker/client"
-	"github.com/jroimartin/gocui"
-	"golang.org/x/net/context"
-)
-
-var data struct {
-	refTrees []*FileTree
-	manifest *Manifest
-}
-
-var views struct {
-	treeView  *FileTreeView
-	layerView *LayerView
-}
-
-func check(e error) {
-	if e != nil {
-		panic(e)
-	}
-}
-
-func saveImage(readCloser io.ReadCloser) {
-	defer readCloser.Close()
-
-	path := "image"
-	if _, err := os.Stat(path); os.IsNotExist(err) {
-		os.Mkdir(path, 0755)
-	}
-
-	fo, err := os.Create("image/cache.tar")
-	check(err)
-
-	defer func() {
-		if err := fo.Close(); err != nil {
-			panic(err)
-		}
-	}()
-	w := bufio.NewWriter(fo)
-
-	buf := make([]byte, 1024)
-	for {
-		n, err := readCloser.Read(buf)
-		if err != nil && err != io.EOF {
-			panic(err)
-		}
-		if n == 0 {
-			break
-		}
-
-		if _, err := w.Write(buf[:n]); err != nil {
-			panic(err)
-		}
-	}
-
-	if err = w.Flush(); err != nil {
-		panic(err)
-	}
-}
-
-func demo() {
-	ctx := context.Background()
-	cli, err := client.NewEnvClient()
-	if err != nil {
-		panic(err)
-	}
-
-	// imageID := "golang:alpine"
-	imageID := "die-test:latest"
-
-	fmt.Println("Saving Image...")
-	readCloser, err := cli.ImageSave(ctx, []string{imageID})
-	check(err)
-	saveImage(readCloser)
-
-	for {
-		inspect, _, err := cli.ImageInspectWithRaw(ctx, imageID)
-		check(err)
-
-		history, err := cli.ImageHistory(ctx, imageID)
-		check(err)
-
-		historyStr, err := json.MarshalIndent(history, "", "  ")
-		check(err)
-
-		layerStr := ""
-		for idx, layer := range inspect.RootFS.Layers {
-			prefix := "├── "
-			if idx == len(inspect.RootFS.Layers)-1 {
-				prefix = "└── "
-			}
-			layerStr += fmt.Sprintf("%s%s\n", prefix, layer)
-		}
-
-		fmt.Printf("Image: %s\nId: %s\nParent: %s\nLayers: %d\n%sHistory: %s\n", imageID, inspect.ID, inspect.Parent, len(inspect.RootFS.Layers), layerStr, historyStr)
-
-		fmt.Println("\n")
-
-		if inspect.Parent == "" {
-			break
-		} else {
-			imageID = inspect.Parent
-		}
-	}
-	fmt.Println("See './image' for the cached image tar")
-}
-
-///////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////
-
-func nextView(g *gocui.Gui, v *gocui.View) error {
-	if v == nil || v.Name() == views.layerView.name {
-		_, err := g.SetCurrentView(views.treeView.name)
-		return err
-	}
-	_, err := g.SetCurrentView(views.layerView.name)
-	return err
-}
-
-func cursorDown(g *gocui.Gui, v *gocui.View) error {
-	cx, cy := v.Cursor()
-
-	// if there isn't a next line
-	line, err := v.Line(cy + 1)
-	if err != nil {
-		// todo: handle error
-	}
-	if len(line) == 0 {
-		return nil
-	}
-	if err := v.SetCursor(cx, cy+1); err != nil {
-		ox, oy := v.Origin()
-		if err := v.SetOrigin(ox, oy+1); err != nil {
-			return err
-		}
-	}
-	return nil
-}
-
-func cursorUp(g *gocui.Gui, v *gocui.View) error {
-	ox, oy := v.Origin()
-	cx, cy := v.Cursor()
-	if err := v.SetCursor(cx, cy-1); err != nil && oy > 0 {
-		if err := v.SetOrigin(ox, oy-1); err != nil {
-			return err
-		}
-	}
-	return nil
-}
-
-func quit(g *gocui.Gui, v *gocui.View) error {
-	return gocui.ErrQuit
-}
-
-func keybindings(g *gocui.Gui) error {
-	if err := g.SetKeybinding("", gocui.KeyCtrlC, gocui.ModNone, quit); err != nil {
-		return err
-	}
-	//if err := g.SetKeybinding("main", gocui.MouseLeft, gocui.ModNone, toggleCollapse); err != nil {
-	//	return err
-	//}
-	if err := g.SetKeybinding("side", gocui.KeyCtrlSpace, gocui.ModNone, nextView); err != nil {
-		return err
-	}
-	if err := g.SetKeybinding("main", gocui.KeyCtrlSpace, gocui.ModNone, nextView); err != nil {
-		return err
-	}
-
-	return nil
-}
-
-func layout(g *gocui.Gui) error {
-	maxX, maxY := g.Size()
-	splitCol := 50
-	if v, err := g.SetView("side", -1, -1, splitCol, maxY); err != nil {
-		if err != gocui.ErrUnknownView {
-			return err
-		}
-		views.layerView = NewLayerView("side", g, v, data.manifest)
-		views.layerView.keybindings()
-
-	}
-	if v, err := g.SetView("main", splitCol, -1, maxX, maxY); err != nil {
-		if err != gocui.ErrUnknownView {
-			return err
-		}
-
-		views.treeView = NewFileTreeView("main", g, v, StackRange(data.refTrees, 0))
-		views.treeView.keybindings()
-
-		if _, err := g.SetCurrentView(views.treeView.name); err != nil {
-			return err
-		}
-	}
-	return nil
-}
-
-func main() {
-	demo()
-	initializeData()
-
-	g, err := gocui.NewGui(gocui.OutputNormal)
-	if err != nil {
-		log.Panicln(err)
-	}
-	defer g.Close()
-
-	g.Cursor = false
-	//g.Mouse = true
-	g.SetManagerFunc(layout)
-
-	if err := keybindings(g); err != nil {
-		log.Panicln(err)
-	}
-
-	if err := g.MainLoop(); err != nil && err != gocui.ErrQuit {
-		log.Panicln(err)
-	}
-
-}