tfsdk: Deprecate Attribute, Block, and Schema types

Reference: #132
Reference: #326
Reference: #437
Reference: #491
Reference: #546
Reference: #553
Reference: #558
Reference: #562

.changelog/pending.txt

@@ -0,0 +1,7 @@
+```release-note:note
+tfsdk: The `Attribute`, `Block`, and `Schema` types have been deprecated. Use the similarly named types in the `datasource/schema`, `provider/schema`, and `resource/schema` packages instead.
+```
+
+```release-note:note
+tfsdk: The `ListNestedAttributes`, `MapNestedAttributes`, `SetNestedAttributes`, and `SingleNestedAttributes` functions have been deprecated. Use the similarly named types in the `datasource/schema`, `provider/schema`, and `resource/schema` packages instead.
+```

.golangci.yml

@@ -1,4 +1,12 @@
 issues:
+  # Temporary rules for unit testing until tfsdk.Schema is removed.
+  exclude-rules:
+    - linters:
+        - staticcheck
+      text: 'SA1019: tfsdk.(Attribute|Block|Schema) is deprecated'
+    - linters:
+        - staticcheck
+      text: 'SA1019: tfsdk.(List|Map|Set|Single)NestedAttributes is deprecated'
   max-per-linter: 0
   max-same-issues: 0
 

internal/fwserver/server_planresourcechange.go

@@ -285,13 +285,13 @@ func MarkComputedNilsAsUnknown(ctx context.Context, config tftypes.Value, resour
 		attribute, err := resourceSchema.AttributeAtTerraformPath(ctx, path)
 
 		if err != nil {
-			if errors.Is(err, tfsdk.ErrPathInsideAtomicAttribute) {
+			if errors.Is(err, fwschema.ErrPathInsideAtomicAttribute) {
 				// ignore attributes/elements inside schema.Attributes, they have no schema of their own
 				logging.FrameworkTrace(ctx, "attribute is a non-schema attribute, not marking unknown")
 				return val, nil
 			}
 
-			if errors.Is(err, tfsdk.ErrPathIsBlock) {
+			if errors.Is(err, fwschema.ErrPathIsBlock) {
 				// ignore blocks, they do not have a computed field
 				logging.FrameworkTrace(ctx, "attribute is a block, not marking unknown")
 				return val, nil

resource/plan_modifiers.go

@@ -7,6 +7,7 @@ import (
 
 	"github.com/hashicorp/terraform-plugin-framework/attr"
 	"github.com/hashicorp/terraform-plugin-framework/diag"
+	"github.com/hashicorp/terraform-plugin-framework/internal/fwschema"
 	"github.com/hashicorp/terraform-plugin-framework/internal/logging"
 	"github.com/hashicorp/terraform-plugin-framework/internal/totftypes"
 	"github.com/hashicorp/terraform-plugin-framework/path"
@@ -104,7 +105,7 @@ func (r requiresReplaceModifier) Modify(ctx context.Context, req tfsdk.ModifyAtt
 
 	// Path may lead to block instead of attribute. Blocks cannot be Computed.
 	// If ErrPathIsBlock, attrSchema.Computed will still be false later.
-	if err != nil && !errors.Is(err, tfsdk.ErrPathIsBlock) {
+	if err != nil && !errors.Is(err, fwschema.ErrPathIsBlock) {
 		resp.Diagnostics.AddAttributeError(req.AttributePath,
 			"Error finding attribute schema",
 			fmt.Sprintf("An unexpected error was encountered retrieving the schema for this attribute. This is always a bug in the provider.\n\nError: %s", err),
@@ -249,7 +250,7 @@ func (r requiresReplaceIfModifier) Modify(ctx context.Context, req tfsdk.ModifyA
 
 	// Path may lead to block instead of attribute. Blocks cannot be Computed.
 	// If ErrPathIsBlock, attrSchema.Computed will still be false later.
-	if err != nil && !errors.Is(err, tfsdk.ErrPathIsBlock) {
+	if err != nil && !errors.Is(err, fwschema.ErrPathIsBlock) {
 		resp.Diagnostics.AddAttributeError(req.AttributePath,
 			"Error finding attribute schema",
 			fmt.Sprintf("An unexpected error was encountered retrieving the schema for this attribute. This is always a bug in the provider.\n\nError: %s", err),

tfsdk/attribute.go

@@ -20,6 +20,11 @@ var (
 // Attribute defines the constraints and behaviors of a single value field in a
 // schema. Attributes are the fields that show up in Terraform state files and
 // can be used in configuration files.
+//
+// Deprecated: Use datasource/schema.Attribute, provider/schema.Attribute, or
+// resource/schema.Attribute instead. This can be switched by using the
+// datasource/schema.Schema, provider/schema.Schema, or resource/schema.Schema
+// types.
 type Attribute struct {
 	// Type indicates what kind of attribute this is. You'll most likely
 	// want to use one of the types in the types package.

tfsdk/block.go

@@ -22,6 +22,11 @@ var _ fwschema.Block = Block{}
 //
 // The NestingMode field must be set or a runtime error will be raised by the
 // framework when fetching the schema.
+//
+// Deprecated: Use datasource/schema.Block, provider/schema.Block, or
+// resource/schema.Block instead. This can be switched by using the
+// datasource/schema.Schema, provider/schema.Schema, or resource/schema.Schema
+// types.
 type Block struct {
 	// Attributes are value fields inside the block. This map of attributes
 	// behaves exactly like the map of attributes on the Schema type.

tfsdk/doc.go

@@ -1,2 +1,2 @@
-// Package tfsdk contains core framework functionality for schemas and schema data.
+// Package tfsdk contains core framework functionality for schema data.
 package tfsdk

tfsdk/nested_attributes.go

@@ -7,6 +7,11 @@ import (
 // ListNestedAttributes nests `attributes` under another attribute, allowing
 // multiple instances of that group of attributes to appear in the
 // configuration.
+//
+// Deprecated: Use datasource/schema.ListNestedAttribute,
+// provider/schema.ListNestedAttribute, or resource/schema.ListNestedAttribute
+// instead. This can be switched by using the datasource/schema.Schema,
+// provider/schema.Schema, or resource/schema.Schema types.
 func ListNestedAttributes(attributes map[string]Attribute) fwschema.NestedAttributes {
 	return fwschema.ListNestedAttributes{
 		UnderlyingAttributes: schemaAttributes(attributes),
@@ -17,6 +22,11 @@ func ListNestedAttributes(attributes map[string]Attribute) fwschema.NestedAttrib
 // multiple instances of that group of attributes to appear in the
 // configuration. Each group will need to be associated with a unique string by
 // the user.
+//
+// Deprecated: Use datasource/schema.MapNestedAttribute,
+// provider/schema.MapNestedAttribute, or resource/schema.MapNestedAttribute
+// instead. This can be switched by using the datasource/schema.Schema,
+// provider/schema.Schema, or resource/schema.Schema types.
 func MapNestedAttributes(attributes map[string]Attribute) fwschema.NestedAttributes {
 	return fwschema.MapNestedAttributes{
 		UnderlyingAttributes: schemaAttributes(attributes),
@@ -26,6 +36,11 @@ func MapNestedAttributes(attributes map[string]Attribute) fwschema.NestedAttribu
 // SetNestedAttributes nests `attributes` under another attribute, allowing
 // multiple instances of that group of attributes to appear in the
 // configuration, while requiring each group of values be unique.
+//
+// Deprecated: Use datasource/schema.SetNestedAttribute,
+// provider/schema.SetNestedAttribute, or resource/schema.SetNestedAttribute
+// instead. This can be switched by using the datasource/schema.Schema,
+// provider/schema.Schema, or resource/schema.Schema types.
 func SetNestedAttributes(attributes map[string]Attribute) fwschema.NestedAttributes {
 	return fwschema.SetNestedAttributes{
 		UnderlyingAttributes: schemaAttributes(attributes),
@@ -35,6 +50,11 @@ func SetNestedAttributes(attributes map[string]Attribute) fwschema.NestedAttribu
 // SingleNestedAttributes nests `attributes` under another attribute, only
 // allowing one instance of that group of attributes to appear in the
 // configuration.
+//
+// Deprecated: Use datasource/schema.SingleNestedAttribute,
+// provider/schema.SingleNestedAttribute, or resource/schema.SingleNestedAttribute
+// instead. This can be switched by using the datasource/schema.Schema,
+// provider/schema.Schema, or resource/schema.Schema types.
 func SingleNestedAttributes(attributes map[string]Attribute) fwschema.NestedAttributes {
 	return fwschema.SingleNestedAttributes{
 		UnderlyingAttributes: schemaAttributes(attributes),

tfsdk/schema.go

@@ -15,10 +15,18 @@ var (
 	// on a path that doesn't have a schema associated with it, because
 	// it's an element, attribute, or block of a complex type, not a nested
 	// attribute.
+	//
+	// Deprecated: This error value was intended for internal usage and will
+	// be removed in a future version. If you have a use case for this,
+	// please create a GitHub issue.
 	ErrPathInsideAtomicAttribute = fwschema.ErrPathInsideAtomicAttribute
 
 	// ErrPathIsBlock is used with AttributeAtPath is called on a path is a
 	// block, not an attribute. Use blockAtPath on the path instead.
+	//
+	// Deprecated: This error value was intended for internal usage and will
+	// be removed in a future version. If you have a use case for this,
+	// please create a GitHub issue.
 	ErrPathIsBlock = fwschema.ErrPathIsBlock
 )
 
@@ -28,6 +36,11 @@ var _ fwschema.Schema = Schema{}
 // Schema is used to define the shape of practitioner-provider information,
 // like resources, data sources, and providers. Think of it as a type
 // definition, but for Terraform.
+//
+// Deprecated: Use datasource/schema.Schema, provider/schema.Schema, or
+// resource/schema.Schema instead. This can be switched by using the
+// datasource.DataSource, provider.Provider, or resource.Resource interface
+// Schema method.
 type Schema struct {
 	// Attributes are value fields inside the resource, provider, or data
 	// source that the schema is defining. The map key should be the name