gistfile1.go

for _, d := range p.DatasetDescriptors {
	for _, t := range d.TableDescriptors {
		wg.Add(1)
		go func(d *datasetDescriptor, t *tableDescriptor) {
			rl.Take()
			defer wg.Done()

			schemaPath := *backupPath + "/" + d.Name + "/" + t.Name + "/schema.json"
			if fileExists(ctx, schemaPath, bkt) {
				return
			}

			err := writeSchemaFile(ctx, bkt, schemaPath, t.Schema)
			if err != nil {
				errc <- err
			}

			dataPath := "gs://" + *bucket + "/" + *backupPath + "/" + d.Name + "/" + t.Name + "/data-*.json"
			err = p.writeDataFiles(ctx, dataPath, p.projectID, d.Name, t.Name)
			if err != nil {
				errc <- err
			}
		}(d, t)
	}
}