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deploy.go
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deploy.go
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// Copyright (c) 2020 SAP SE or an SAP affiliate company. All rights reserved. This file is licensed under the Apache Software License, v. 2 except as noted otherwise in the LICENSE file
//
// Licensed under the Apache License, Version 2.0 (the "License");
// you may not use this file except in compliance with the License.
// You may obtain a copy of the License at
//
// http://www.apache.org/licenses/LICENSE-2.0
//
// Unless required by applicable law or agreed to in writing, software
// distributed under the License is distributed on an "AS IS" BASIS,
// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
// See the License for the specific language governing permissions and
// limitations under the License.
package component
import "context"
// OpDestroy creates a DeployWaiter which calls Destroy instead of create
// and WaitCleanup instead of Wait
func OpDestroy(dw ...DeployWaiter) DeployWaiter {
return &deploy{
dw: dw,
invert: true,
destroyOnly: false,
}
}
// OpDestroyAndWait creates a Deployer which calls Destroy instead of create
// and waits for destruction.
func OpDestroyAndWait(dw ...DeployWaiter) Deployer {
return &deploy{
dw: dw,
invert: true,
destroyOnly: true,
}
}
// OpWaiter creates a Deployer which calls waits for each operation.
func OpWaiter(dw ...DeployWaiter) Deployer {
return &deploy{
dw: dw,
invert: false,
destroyOnly: true,
}
}
// NoOp does nothing
func NoOp() DeployWaiter { return &deploy{} }
type deploy struct {
invert bool
destroyOnly bool
dw []DeployWaiter
}
func (d *deploy) Deploy(ctx context.Context) error {
if d.invert {
return d.Destroy(ctx)
}
for _, dw := range d.dw {
if dw == nil {
continue
}
if err := dw.Deploy(ctx); err != nil {
return err
}
if d.destroyOnly {
if err := dw.Wait(ctx); err != nil {
return err
}
}
}
return nil
}
func (d *deploy) Destroy(ctx context.Context) error {
for _, dw := range d.dw {
if dw == nil {
continue
}
if err := dw.Destroy(ctx); err != nil {
return err
}
if d.destroyOnly {
if err := dw.WaitCleanup(ctx); err != nil {
return err
}
}
}
return nil
}
func (d *deploy) Wait(ctx context.Context) error {
if d.invert {
return d.WaitCleanup(ctx)
}
for _, dw := range d.dw {
if dw == nil {
continue
}
if err := dw.Wait(ctx); err != nil {
return err
}
}
return nil
}
func (d *deploy) WaitCleanup(ctx context.Context) error {
for _, dw := range d.dw {
if dw == nil {
continue
}
if err := dw.WaitCleanup(ctx); err != nil {
return err
}
}
return nil
}