package plugin import ( "github.com/mitchellh/packer/packer" "log" ) type cmdHook struct { hook packer.Hook client *Client } func (c *cmdHook) Run(name string, ui packer.Ui, comm packer.Communicator, data interface{}) { defer func() { r := recover() c.checkExit(r, nil) }() c.hook.Run(name, ui, comm, data) } func (c *cmdHook) checkExit(p interface{}, cb func()) { if c.client.Exited() { cb() } else if p != nil { log.Panic(p) } }