packer-cn/builder/hyperv/common/shutdown_config.go

package common

import (
	"fmt"
	"time"

	"github.com/hashicorp/packer/template/interpolate"
)

type ShutdownConfig struct {
	// The command to use to gracefully shut down
    // the machine once all provisioning is complete. By default this is an
    // empty string, which tells Packer to just forcefully shut down the
    // machine. This setting can be safely omitted if for example, a shutdown
    // command to gracefully halt the machine is configured inside a
    // provisioning script. If one or more scripts require a reboot it is
    // suggested to leave this blank (since reboots may fail) and instead
    // specify the final shutdown command in your last script.
	ShutdownCommand    string `mapstructure:"shutdown_command" required:"false"`
	// The amount of time to wait after executing
    // the shutdown_command for the virtual machine to actually shut down.
    // If the machine doesn't shut down in this time it is considered an
    // error. By default, the time out is "5m" (five minutes).
	RawShutdownTimeout string `mapstructure:"shutdown_timeout" required:"false"`

	ShutdownTimeout time.Duration ``
}

func (c *ShutdownConfig) Prepare(ctx *interpolate.Context) []error {
	if c.RawShutdownTimeout == "" {
		c.RawShutdownTimeout = "5m"
	}

	var errs []error
	var err error
	c.ShutdownTimeout, err = time.ParseDuration(c.RawShutdownTimeout)
	if err != nil {
		errs = append(errs, fmt.Errorf("Failed parsing shutdown_timeout: %s", err))
	}

	return errs
}