github.com/bendemaree/terraform@v0.5.4-0.20150613200311-f50d97d6eee6/terraform/eval_provisioner.go (about)

     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  // EvalGetProvisioner is an EvalNode implementation that retrieves an already
    19  // initialized provisioner instance for the given name.
    20  type EvalGetProvisioner struct {
    21  	Name   string
    22  	Output *ResourceProvisioner
    23  }
    24  
    25  func (n *EvalGetProvisioner) Eval(ctx EvalContext) (interface{}, error) {
    26  	result := ctx.Provisioner(n.Name)
    27  	if result == nil {
    28  		return nil, fmt.Errorf("provisioner %s not initialized", n.Name)
    29  	}
    30  
    31  	if n.Output != nil {
    32  		*n.Output = result
    33  	}
    34  
    35  	return result, nil
    36  }