terraform/terraform/eval_ignore_changes.go

35 lines
781 B
Go

package terraform
import (
"strings"
"github.com/hashicorp/terraform/config"
)
// EvalIgnoreChanges is an EvalNode implementation that removes diff
// attributes if their name matches names provided by the resource's
// IgnoreChanges lifecycle.
type EvalIgnoreChanges struct {
Resource *config.Resource
Diff **InstanceDiff
}
func (n *EvalIgnoreChanges) Eval(ctx EvalContext) (interface{}, error) {
if n.Diff == nil || *n.Diff == nil || n.Resource == nil || n.Resource.Id() == "" {
return nil, nil
}
diff := *n.Diff
ignoreChanges := n.Resource.Lifecycle.IgnoreChanges
for _, ignoredName := range ignoreChanges {
for name := range diff.Attributes {
if strings.HasPrefix(name, ignoredName) {
delete(diff.Attributes, name)
}
}
}
return nil, nil
}