refactor: Move chunk size limit constants to new chunks package

Author: SarahFrench

internal/backend/pluggable/chunks.go renamed to internal/backend/pluggable/chunks/chunks.go

@@ -1,7 +1,7 @@
 // Copyright (c) HashiCorp, Inc.
 // SPDX-License-Identifier: BUSL-1.1
 
-package pluggable
+package chunks
 
 const (
 	// DefaultStateStoreChunkSize is the default chunk size proposed

internal/backend/pluggable/pluggable.go

@@ -7,6 +7,7 @@ import (
 	"errors"
 
 	"github.com/hashicorp/terraform/internal/backend"
+	"github.com/hashicorp/terraform/internal/backend/pluggable/chunks"
 	"github.com/hashicorp/terraform/internal/configs/configschema"
 	"github.com/hashicorp/terraform/internal/providers"
 	"github.com/hashicorp/terraform/internal/states/remote"
@@ -106,7 +107,8 @@ func (p *Pluggable) Configure(config cty.Value) tfdiags.Diagnostics {
 		TypeName: p.typeName,
 		Config:   config,
 		Capabilities: providers.StateStoreClientCapabilities{
-			ChunkSize: DefaultStateStoreChunkSize,
+			// The core binary will always request the default chunk size from the provider to start
+			ChunkSize: chunks.DefaultStateStoreChunkSize,
 		},
 	}
 	resp := p.provider.ConfigureStateStore(req)

internal/command/meta_backend.go

@@ -31,6 +31,7 @@ import (
 	backendInit "github.com/hashicorp/terraform/internal/backend/init"
 	backendLocal "github.com/hashicorp/terraform/internal/backend/local"
 	backendPluggable "github.com/hashicorp/terraform/internal/backend/pluggable"
+	"github.com/hashicorp/terraform/internal/backend/pluggable/chunks"
 	"github.com/hashicorp/terraform/internal/cloud"
 	"github.com/hashicorp/terraform/internal/command/arguments"
 	"github.com/hashicorp/terraform/internal/command/clistate"
@@ -2071,7 +2072,7 @@ func (m *Meta) savedStateStore(sMgr *clistate.LocalState, factory providers.Fact
 		TypeName: s.StateStore.Type,
 		Config:   stateStoreConfigVal,
 		Capabilities: providers.StateStoreClientCapabilities{
-			ChunkSize: backendPluggable.DefaultStateStoreChunkSize,
+			ChunkSize: chunks.DefaultStateStoreChunkSize,
 		},
 	})
 	diags = diags.Append(cfgStoreResp.Diagnostics)
@@ -2080,10 +2081,10 @@ func (m *Meta) savedStateStore(sMgr *clistate.LocalState, factory providers.Fact
 	}
 
 	chunkSize := cfgStoreResp.Capabilities.ChunkSize
-	if chunkSize == 0 || chunkSize > backendPluggable.MaxStateStoreChunkSize {
+	if chunkSize == 0 || chunkSize > chunks.MaxStateStoreChunkSize {
 		diags = diags.Append(fmt.Errorf("Failed to negotiate acceptable chunk size. "+
 			"Expected size > 0 and <= %d bytes, provider wants %d bytes",
-			backendPluggable.MaxStateStoreChunkSize, chunkSize,
+			chunks.MaxStateStoreChunkSize, chunkSize,
 		))
 		return nil, diags
 	}

internal/grpcwrap/provider6.go

@@ -18,9 +18,9 @@ import (
 	"google.golang.org/grpc/status"
 	"google.golang.org/protobuf/types/known/timestamppb"
 
+	"github.com/hashicorp/terraform/internal/backend/pluggable/chunks"
 	proto6 "github.com/hashicorp/terraform/internal/tfplugin6"
 
-	backendPluggable "github.com/hashicorp/terraform/internal/backend/pluggable"
 	"github.com/hashicorp/terraform/internal/plugin6/convert"
 	"github.com/hashicorp/terraform/internal/providers"
 	"github.com/hashicorp/terraform/internal/tfplugin6"
@@ -966,17 +966,17 @@ func (p *provider6) ConfigureStateStore(ctx context.Context, req *tfplugin6.Conf
 		TypeName: req.TypeName,
 		Config:   configVal,
 		Capabilities: providers.StateStoreClientCapabilities{
-			ChunkSize: backendPluggable.DefaultStateStoreChunkSize,
+			ChunkSize: chunks.DefaultStateStoreChunkSize,
 		},
 	})
 
 	// Validate the returned chunk size value
-	if configureResp.Capabilities.ChunkSize == 0 || configureResp.Capabilities.ChunkSize > backendPluggable.MaxStateStoreChunkSize {
+	if configureResp.Capabilities.ChunkSize == 0 || configureResp.Capabilities.ChunkSize > chunks.MaxStateStoreChunkSize {
 		diag := &tfplugin6.Diagnostic{
 			Severity: tfplugin6.Diagnostic_ERROR,
 			Summary:  "Failed to negotiate acceptable chunk size",
 			Detail: fmt.Sprintf("Expected size > 0 and <= %d bytes, provider wants %d bytes",
-				backendPluggable.MaxStateStoreChunkSize, configureResp.Capabilities.ChunkSize),
+				chunks.MaxStateStoreChunkSize, configureResp.Capabilities.ChunkSize),
 		}
 		resp.Diagnostics = append(resp.Diagnostics, diag)
 		return resp, nil