tools/mc2bq/pkg/backoff/retry.go

// Copyright 2023 Google LLC All Rights Reserved.
//
// 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 backoff

import (
	"context"
	"time"
)

func RetryUntil(ctx context.Context, backoff Backoff, f func() (done bool, err error)) error {
	for {
		done, err := f()
		if err != nil {
			return err
		}

		if done {
			return nil
		}

		sleepDuration := backoff.Step()
		if deadline, ok := ctx.Deadline(); ok {
			if time.Now().Add(sleepDuration).After(deadline) {
				return context.DeadlineExceeded
			}
		}

		time.Sleep(sleepDuration)
	}
}