terraform/command/views/state_locker.go

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package views
import (
"fmt"
"github.com/hashicorp/terraform/command/arguments"
)
// The StateLocker view is used to display locking/unlocking status messages
// if the state lock process takes longer than expected.
type StateLocker interface {
Locking()
Unlocking()
}
// NewStateLocker returns an initialized StateLocker implementation for the given ViewType.
func NewStateLocker(vt arguments.ViewType, view *View) StateLocker {
switch vt {
case arguments.ViewHuman:
return &StateLockerHuman{view: view}
default:
panic(fmt.Sprintf("unknown view type %v", vt))
}
}
// StateLockerHuman is an implementation of StateLocker which prints status to
// a terminal.
type StateLockerHuman struct {
view *View
}
var _ StateLocker = (*StateLockerHuman)(nil)
func (v *StateLockerHuman) Locking() {
v.view.streams.Println("Acquiring state lock. This may take a few moments...")
}
func (v *StateLockerHuman) Unlocking() {
v.view.streams.Println("Releasing state lock. This may take a few moments...")
}