add missing file

Author: ddvk

shell/refresh.go

@@ -0,0 +1,31 @@
+package shell
+
+import (
+	"errors"
+
+	"github.com/abiosoft/ishell"
+)
+
+func refreshCmd(ctx *ShellCtxt) *ishell.Cmd {
+	return &ishell.Cmd{
+		Name: "refresh",
+		Help: "refreshes the tree with remote changes",
+		Func: func(c *ishell.Context) {
+			err := ctx.api.Refresh()
+			if err != nil {
+				c.Err(err)
+				return
+			}
+			n, err := ctx.api.Filetree().NodeByPath(ctx.path, nil)
+			if err != nil {
+				c.Err(errors.New("current path is invalid"))
+
+				ctx.node = ctx.api.Filetree().Root()
+				ctx.path = ctx.node.Name()
+				c.SetPrompt(ctx.prompt())
+				return
+			}
+			ctx.node = n
+		},
+	}
+}