remove json2dot command

There's no need for the json2dot command since we can't create json
debug graphs.

command/debug_json2dot.go

@@ -1,66 +0,0 @@
-package command
-
-import (
-	"fmt"
-	"os"
-	"strings"
-
-	"github.com/hashicorp/terraform/dag"
-	"github.com/mitchellh/cli"
-)
-
-// DebugJSON2DotCommand is a Command implementation that translates a json
-// graph debug log to Dot format.
-type DebugJSON2DotCommand struct {
-	Meta
-}
-
-func (c *DebugJSON2DotCommand) Run(args []string) int {
-	args, err := c.Meta.process(args, true)
-	if err != nil {
-		return 1
-	}
-	cmdFlags := c.Meta.extendedFlagSet("debug json2dot")
-
-	if err := cmdFlags.Parse(args); err != nil {
-		return cli.RunResultHelp
-	}
-
-	fileName := cmdFlags.Arg(0)
-	if fileName == "" {
-		return cli.RunResultHelp
-	}
-
-	f, err := os.Open(fileName)
-	if err != nil {
-		c.Ui.Error(fmt.Sprintf(errInvalidLog, err))
-		return cli.RunResultHelp
-	}
-
-	dot, err := dag.JSON2Dot(f)
-	if err != nil {
-		c.Ui.Error(fmt.Sprintf(errInvalidLog, err))
-		return cli.RunResultHelp
-	}
-
-	c.Ui.Output(string(dot))
-	return 0
-}
-
-func (c *DebugJSON2DotCommand) Help() string {
-	helpText := `
-Usage: terraform debug json2dot input.json
-
-  Translate a graph debug file to dot format.
-
-  This command takes a single json graph log file and converts it to a single
-  dot graph written to stdout.
-`
-	return strings.TrimSpace(helpText)
-}
-
-func (c *DebugJSON2DotCommand) Synopsis() string {
-	return "Convert json graph log to dot"
-}
-
-const errInvalidLog = `Error parsing log file: %[1]s`

command/debug_json2dot_test.go

@@ -1,53 +0,0 @@
-package command
-
-import (
-	"io/ioutil"
-	"os"
-	"strings"
-	"testing"
-
-	"github.com/hashicorp/terraform/dag"
-	"github.com/mitchellh/cli"
-)
-
-func TestDebugJSON2Dot(t *testing.T) {
-	// create the graph JSON output
-	logFile, err := ioutil.TempFile(testingDir, "tf")
-	if err != nil {
-		t.Fatal(err)
-	}
-	defer os.Remove(logFile.Name())
-
-	var g dag.Graph
-	g.SetDebugWriter(logFile)
-
-	g.Add(1)
-	g.Add(2)
-	g.Add(3)
-	g.Connect(dag.BasicEdge(1, 2))
-	g.Connect(dag.BasicEdge(2, 3))
-
-	ui := new(cli.MockUi)
-	c := &DebugJSON2DotCommand{
-		Meta: Meta{
-			testingOverrides: metaOverridesForProvider(testProvider()),
-			Ui:               ui,
-		},
-	}
-
-	args := []string{
-		logFile.Name(),
-	}
-	if code := c.Run(args); code != 0 {
-		t.Fatalf("bad: \n%s", ui.ErrorWriter.String())
-	}
-
-	output := ui.OutputWriter.String()
-	if !strings.HasPrefix(output, "digraph {") {
-		t.Fatalf("doesn't look like digraph: %s", output)
-	}
-
-	if !strings.Contains(output, `subgraph "root" {`) {
-		t.Fatalf("doesn't contains root subgraph: %s", output)
-	}
-}

commands.go

@@ -318,12 +318,6 @@ func initCommands(config *cliconfig.Config, services *disco.Disco, providerSrc g
 			}, nil
 		},
 
-		"debug json2dot": func() (cli.Command, error) {
-			return &command.DebugJSON2DotCommand{
-				Meta: meta,
-			}, nil
-		},
-
 		"force-unlock": func() (cli.Command, error) {
 			return &command.UnlockCommand{
 				Meta: meta,