From 5760a88db3a3160fd90fd39067d2c024edd23e08 Mon Sep 17 00:00:00 2001
From: Jamie Markle <jamie.markle@juicemobile.com>
Date: Mon, 15 Aug 2016 15:22:50 -0400
Subject: [PATCH] add WrapProcess

---
 commands.go | 8 ++++++++
 1 file changed, 8 insertions(+)

diff --git a/commands.go b/commands.go
index 769dcb1..d7f2249 100644
--- a/commands.go
+++ b/commands.go
@@ -245,6 +245,14 @@ type cmdable struct {
 	process func(cmd Cmder) error
 }
 
+// WrapProcess replaces the process func. It takes a function createWrapper
+// which is supplied by the user. createWrapper takes the old process func as
+// an input and returns the new wrapper process func. createWrapper should
+// use call the old process func within the new process func.
+func (c *cmdable) WrapProcess(createWrapper func(oldProcess func(cmd Cmder) error) func(cmd Cmder) error) {
+	c.process = createWrapper(c.process)
+}
+
 var _ Cmdable = (*cmdable)(nil)
 
 type statefulCmdable struct {