migrate

Imports

• github.com/cenkalti/backoff
• github.com/sirupsen/logrus
• github.com/yunify/qscamel/constants
• github.com/yunify/qscamel/contexts
• github.com/yunify/qscamel/endpoint
• github.com/yunify/qscamel/endpoint/aliyun
• github.com/yunify/qscamel/endpoint/fs
• github.com/yunify/qscamel/endpoint/gcs
• github.com/yunify/qscamel/endpoint/qingstor
• github.com/yunify/qscamel/endpoint/qiniu
• github.com/yunify/qscamel/endpoint/s3
• github.com/yunify/qscamel/endpoint/upyun
• github.com/yunify/qscamel/model
• github.com/yunify/qscamel/utils

Standard library imports

• context
• errors
• sync