github.com/ByteTerrace/packer@v1.3.2/packer/plugin/hook.go (about)

     1  package plugin
     2  
     3  import (
     4  	"log"
     5  
     6  	"github.com/hashicorp/packer/packer"
     7  )
     8  
     9  type cmdHook struct {
    10  	hook   packer.Hook
    11  	client *Client
    12  }
    13  
    14  func (c *cmdHook) Run(name string, ui packer.Ui, comm packer.Communicator, data interface{}) error {
    15  	defer func() {
    16  		r := recover()
    17  		c.checkExit(r, nil)
    18  	}()
    19  
    20  	return c.hook.Run(name, ui, comm, data)
    21  }
    22  
    23  func (c *cmdHook) Cancel() {
    24  	defer func() {
    25  		r := recover()
    26  		c.checkExit(r, nil)
    27  	}()
    28  
    29  	c.hook.Cancel()
    30  }
    31  
    32  func (c *cmdHook) checkExit(p interface{}, cb func()) {
    33  	if c.client.Exited() && cb != nil {
    34  		cb()
    35  	} else if p != nil && !Killed {
    36  		log.Panic(p)
    37  	}
    38  }