refactor: change package names

hcloudimages/internal/control/retry.go

@@ -0,0 +1,39 @@
+package control
+
+import (
+	"context"
+	"time"
+
+	"github.com/apricote/hcloud-upload-image/hcloudimages/backoff"
+	"github.com/apricote/hcloud-upload-image/hcloudimages/contextlogger"
+)
+
+// From https://github.com/hetznercloud/terraform-provider-hcloud/blob/v1.46.1/internal/control/retry.go
+// Copyright (c) Hetzner Cloud GmbH
+
+// Retry executes f at most maxTries times.
+func Retry(ctx context.Context, maxTries int, f func() error) error {
+	logger := contextlogger.From(ctx)
+
+	var err error
+
+	backoffFunc := backoff.ExponentialBackoffWithLimit(2, 1*time.Second, 30*time.Second)
+
+	for try := 0; try < maxTries; try++ {
+		if ctx.Err() != nil {
+			return ctx.Err()
+		}
+
+		err = f()
+		if err != nil {
+			sleep := backoffFunc(try)
+			logger.DebugContext(ctx, "operation failed, waiting before trying again", "try", try, "backoff", sleep)
+			time.Sleep(sleep)
+			continue
+		}
+
+		return nil
+	}
+
+	return err
+}