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

   1 package terraform
   2
   3 import (
   4         "log"
   5
   6         "github.com/hashicorp/terraform/configs"
   7         "github.com/hashicorp/terraform/states"
   8 )
   9
  10 // RemovedModuleTransformer implements GraphTransformer to add nodes indicating
  11 // when a module was removed from the configuration.
  12 type RemovedModuleTransformer struct {
  13         Config *configs.Config // root node in the config tree
  14         State  *states.State
  15 }
  16
  17 func (t *RemovedModuleTransformer) Transform(g *Graph) error {
  18         // nothing to remove if there's no state!
  19         if t.State == nil {
  20                 return nil
  21         }
  22
  23         for _, m := range t.State.Modules {
  24                 cc := t.Config.DescendentForInstance(m.Addr)
  25                 if cc != nil {
  26                         continue
  27                 }
  28
  29                 log.Printf("[DEBUG] %s is no longer in configuration\n", m.Addr)
  30                 g.Add(&NodeModuleRemoved{Addr: m.Addr})
  31         }
  32         return nil
  33 }