dumpfetch

func Fetch ¶

func Fetch(ctx context.Context, uri string) (localPath string, cleanup func(), err error)

Fetch resolves uri to a local file path ready for use as a dump source.

Supported URI forms:

• local path (no scheme): returned as-is; cleanup is a no-op
• s3://bucket/key: downloaded via the AWS SDK using ambient credentials
• http:// or https://: downloaded via net/http

The caller must invoke cleanup() when the file is no longer needed. For local paths cleanup is a no-op; for downloads it removes the temp file.