vendor/github.com/hashicorp/terraform/terraform/eval_provisioner.go

   1 package terraform
   2
   3 import (
   4         "fmt"
   5 )
   6
   7 // EvalInitProvisioner is an EvalNode implementation that initializes a provisioner
   8 // and returns nothing. The provisioner can be retrieved again with the
   9 // EvalGetProvisioner node.
  10 type EvalInitProvisioner struct {
  11         Name string
  12 }
  13
  14 func (n *EvalInitProvisioner) Eval(ctx EvalContext) (interface{}, error) {
  15         return ctx.InitProvisioner(n.Name)
  16 }
  17
  18 // EvalCloseProvisioner is an EvalNode implementation that closes provisioner
  19 // connections that aren't needed anymore.
  20 type EvalCloseProvisioner struct {
  21         Name string
  22 }
  23
  24 func (n *EvalCloseProvisioner) Eval(ctx EvalContext) (interface{}, error) {
  25         ctx.CloseProvisioner(n.Name)
  26         return nil, nil
  27 }
  28
  29 // EvalGetProvisioner is an EvalNode implementation that retrieves an already
  30 // initialized provisioner instance for the given name.
  31 type EvalGetProvisioner struct {
  32         Name   string
  33         Output *ResourceProvisioner
  34 }
  35
  36 func (n *EvalGetProvisioner) Eval(ctx EvalContext) (interface{}, error) {
  37         result := ctx.Provisioner(n.Name)
  38         if result == nil {
  39                 return nil, fmt.Errorf("provisioner %s not initialized", n.Name)
  40         }
  41
  42         if n.Output != nil {
  43                 *n.Output = result
  44         }
  45
  46         return result, nil
  47 }