Client Crate Reorganization Upgrade Guidance

[jdisanti]

Generated clients now follow a new module organization scheme by default, but it is possible to turn this new scheme off via the smithy-build.json using the enableNewCrateOrganizationScheme codegen flag, as shown below:

{
    "version": "1.0",
    "plugins": {
        "rust-client-codegen": {
            "codegen": {
                "enableNewCrateOrganizationScheme": false
            },
            "service": "...",
            "module": "...",
            "moduleVersion": "...",
            "moduleDescription": "...",
            "moduleAuthors": ["..."]
        }
    }
}

To upgrade, it is recommended to first disable the new organization scheme, fix all the compiler errors from other breaking changes that came with this release, and then enable it again to adopt the new scheme.

If you are using an IDE, the easiest way to upgrade will be to delete all imports from your generated client, and use the IDE features to automatically re-import the types. Otherwise, consider running rustdoc against the generated client and searching the docs to find the new module for any given type that fails to resolve.

Specific changes:

• crate::types => crate::primitives
• crate::model => crate::types
• XyzInput, XyzOutput, XyzError => crate::operation::xyz::{XyzInput, XyzOutput, XyzError}
• Some error types in crate::error have moved to crate::types::error