115 lines
3.6 KiB
Go
115 lines
3.6 KiB
Go
package plans
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import (
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"fmt"
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"github.com/hashicorp/terraform/addrs"
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"github.com/hashicorp/terraform/states"
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"github.com/zclconf/go-cty/cty"
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)
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// ResourceInstanceChangeSrc is a not-yet-decoded ResourceInstanceChange.
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// Pass the associated resource type's schema type to method Decode to
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// obtain a ResourceInstancChange.
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type ResourceInstanceChangeSrc struct {
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// Addr is the absolute address of the resource instance that the change
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// will apply to.
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Addr addrs.AbsResourceInstance
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// DeposedKey is the identifier for a deposed object associated with the
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// given instance, or states.NotDeposed if this change applies to the
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// current object.
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//
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// A Replace change for a resource with create_before_destroy set will
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// create a new DeposedKey temporarily during replacement. In that case,
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// DeposedKey in the plan is always states.NotDeposed, representing that
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// the current object is being replaced with the deposed.
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DeposedKey states.DeposedKey
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// Provider is the address of the provider configuration that was used
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// to plan this change, and thus the configuration that must also be
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// used to apply it.
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ProviderAddr addrs.AbsProviderConfig
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// ChangeSrc is an embedded description of the not-yet-decoded change.
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ChangeSrc
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}
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// Decode unmarshals the raw representation of the instance object being
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// changed. Pass the implied type of the corresponding resource type schema
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// for correct operation.
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func (rcs *ResourceInstanceChangeSrc) Decode(ty cty.Type) (*ResourceInstanceChange, error) {
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change, err := rcs.ChangeSrc.Decode(ty)
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if err != nil {
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return nil, err
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}
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return &ResourceInstanceChange{
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Addr: rcs.Addr,
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DeposedKey: rcs.DeposedKey,
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ProviderAddr: rcs.ProviderAddr,
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Change: *change,
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}, nil
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}
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// OutputChange describes a change to an output value.
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type OutputChangeSrc struct {
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// ChangeSrc is an embedded description of the not-yet-decoded change.
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//
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// For output value changes, the type constraint for the DynamicValue
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// instances is always cty.DynamicPseudoType.
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ChangeSrc
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// Sensitive, if true, indicates that either the old or new value in the
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// change is sensitive and so a rendered version of the plan in the UI
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// should elide the actual values while still indicating the action of the
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// change.
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Sensitive bool
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}
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// Decode unmarshals the raw representation of the output value being
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// changed.
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func (ocs *OutputChangeSrc) Decode() (*OutputChange, error) {
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change, err := ocs.ChangeSrc.Decode(cty.DynamicPseudoType)
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if err != nil {
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return nil, err
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}
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return &OutputChange{
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Change: *change,
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Sensitive: ocs.Sensitive,
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}, nil
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}
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// ChangeSrc is a not-yet-decoded Change.
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type ChangeSrc struct {
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// Action defines what kind of change is being made.
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Action Action
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// Before and After correspond to the fields of the same name in Change,
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// but have not yet been decoded from the serialized value used for
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// storage.
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Before, After DynamicValue
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}
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// Decode unmarshals the raw representations of the before and after values
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// to produce a Change object. Pass the type constraint that the result must
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// conform to.
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//
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// Where a ChangeSrc is embedded in some other struct, it's generally better
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// to call the corresponding Decode method of that struct rather than working
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// directly with its embedded Change.
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func (cs *ChangeSrc) Decode(ty cty.Type) (*Change, error) {
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before, err := cs.Before.Decode(ty)
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if err != nil {
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return nil, fmt.Errorf("error decoding 'before' value: %s", err)
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}
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after, err := cs.After.Decode(ty)
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if err != nil {
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return nil, fmt.Errorf("error decoding 'after' value: %s", err)
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}
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return &Change{
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Action: cs.Action,
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Before: before,
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After: after,
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}, nil
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}
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