tfprotov5+tfprotov6: Copy MoveResourceState method into ResourceServer
bflad opened this issue · comments
terraform-plugin-go version
v0.21.0 (not yet released)
Description
The upcoming v0.21.0 release will contain the tfprotov5
and tfprotov6
package ResourceServerWithMoveResourceState
temporary interface, which contains the MoveResourceState
RPC function handler. Rather than immediately requiring all downstream SDK implementations to implement this functionality immediately by requiring MoveResourceState
as part of ResourceServer
, it seems ideal if we can stagger the releases between introducing and supporting the new MoveResourceState
bits then having a followup release that makes the implementation required with the "breaking change" to match the intended design of this Go module to always require all provider implementations to fully implement the protocol.
For provider developers, this type of terraform-plugin-go change previously surfaced as confusing missing method XXX
when updating only some dependencies of terraform-plugin-framework, terraform-plugin-mux, terraform-plugin-sdk, or terraform-plugin-testing where terraform-plugin-go required the additional ResourceServer
bits, but with the newer setup there can at least be better chance that particular update issue won't occur for them and changelog can reference the minimum SDK versions.
Proposal
Move the MoveResourceState
method from ResourceServerWithMoveResourceState
to ResourceServer
. Remove temporary ResourceServerWithMoveResourceState
interface, logic referencing it, and associated error diagnostics when it was missing in the server implementations.
References
Per #388 (comment), this issue is going to be changed into just copying the MoveResourceState
method into the ResourceServer
interface and a separate issue created for the actual ResourceServerWithMoveResourceState
interface removal.
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