refactor: merge UI for serving/generating

See https://git.vvvvvvaria.org/decentral1se/distribusi-go/issues/8

distribusi.go

@@ -340,7 +340,7 @@ Example:
 func distribusify(c *cli.Context, root string, ignore []string) error {
 	var allDirs []string
 
-	progress := mkProgressBar()
+	progress := mkProgressBar(c)
 
 	if err := filepath.Walk(root, func(fpath string, finfo os.FileInfo, err error) error {
 
@@ -782,8 +782,6 @@ func serveHTTP(fpath string) error {
 	fs := http.FileServer(http.Dir(fpath))
 	http.Handle("/", fs)
 
-	logrus.Infof("distribusi serving from http://localhost%s", port)
-
 	if err := http.ListenAndServe(port, nil); err != nil {
 		return err
 	}
@@ -859,9 +857,16 @@ func getLogFile() (*os.File, error) {
 
 // mkProgressBar creates a customised progress bar. This bar is used to give
 // real-time updates on the progress of running distribusi.
-func mkProgressBar() *progressbar.ProgressBar {
+func mkProgressBar(c *cli.Context) *progressbar.ProgressBar {
+	var description string
+	if c.Bool("serve") {
+		description = fmt.Sprintf("distribusifying... live @ http://localhost%s", port)
+	} else {
+		description = "distribusifying..."
+	}
+
 	bar := progressbar.NewOptions(-1,
-		progressbar.OptionSetDescription("distribusifying..."),
+		progressbar.OptionSetDescription(description),
 		progressbar.OptionSetWriter(ansi.NewAnsiStdout()),
 		progressbar.OptionEnableColorCodes(true),
 		progressbar.OptionShowCount(),