fix(config): Validate database config in all cases (#2856)

A `continue` in `Validate` was preventing validation in cases where
no Go codegen is configured.

* Move some Go-specific config validation into codegen package
* Update config validation test
* Remove some dead code

Author: andrewmbenton

internal/codegen/golang/gen.go

@@ -108,6 +108,10 @@ func Generate(ctx context.Context, req *plugin.CodeGenRequest) (*plugin.CodeGenR
 		return nil, err
 	}
 
+	if err := validateOpts(options); err != nil {
+		return nil, err
+	}
+
 	enums := buildEnums(req, options)
 	structs := buildStructs(req, options)
 	queries, err := buildQueries(req, options, structs)

internal/codegen/golang/opts.go

@@ -39,7 +39,7 @@ type opts struct {
 	OmitUnusedStructs           bool     `json:"omit_unused_structs,omitempty"`
 	BuildTags                   string   `json:"build_tags,omitempty"`
 
-	// Unused but left in for parsing convenience
+	// Unused but included in marshaled json we receive
 	Overrides json.RawMessage `json:"overrides,omitempty"`
 	Rename    json.RawMessage `json:"rename,omitempty"`
 }
@@ -59,3 +59,11 @@ func parseOpts(req *plugin.CodeGenRequest) (*opts, error) {
 
 	return options, nil
 }
+
+func validateOpts(opts *opts) error {
+	if opts.EmitMethodsWithDbArgument && opts.EmitPreparedQueries {
+		return fmt.Errorf("invalid options: emit_methods_with_db_argument and emit_prepared_queries options are mutually exclusive")
+	}
+
+	return nil
+}

internal/config/config_test.go

@@ -79,13 +79,12 @@ func FuzzConfig(f *testing.F) {
 func TestInvalidConfig(t *testing.T) {
 	err := Validate(&Config{
 		SQL: []SQL{{
-			Gen: SQLGen{
-				Go: &SQLGo{
-					EmitMethodsWithDBArgument: true,
-					EmitPreparedQueries:       true,
-				},
+			Database: &Database{
+				URI:     "",
+				Managed: false,
 			},
-		}}})
+		}},
+	})
 	if err == nil {
 		t.Errorf("expected err; got nil")
 	}

internal/config/override.go

@@ -6,7 +6,6 @@ import (
 	"strings"
 
 	"github.com/sqlc-dev/sqlc/internal/pattern"
-	"github.com/sqlc-dev/sqlc/internal/sql/ast"
 )
 
 type Override struct {
@@ -49,39 +48,6 @@ type Override struct {
 	GoStructTags map[string]string
 }
 
-func (o *Override) Matches(n *ast.TableName, defaultSchema string) bool {
-	if n == nil {
-		return false
-	}
-
-	schema := n.Schema
-	if n.Schema == "" {
-		schema = defaultSchema
-	}
-
-	if o.TableCatalog != nil && !o.TableCatalog.MatchString(n.Catalog) {
-		return false
-	}
-
-	if o.TableSchema == nil && schema != "" {
-		return false
-	}
-
-	if o.TableSchema != nil && !o.TableSchema.MatchString(schema) {
-		return false
-	}
-
-	if o.TableRel == nil && n.Name != "" {
-		return false
-	}
-
-	if o.TableRel != nil && !o.TableRel.MatchString(n.Name) {
-		return false
-	}
-
-	return true
-}
-
 func (o *Override) Parse() (err error) {
 
 	// validate deprecated postgres_type field

internal/config/python_type.go

@@ -4,13 +4,6 @@ import "fmt"
 
 func Validate(c *Config) error {
 	for _, sql := range c.SQL {
-		sqlGo := sql.Gen.Go
-		if sqlGo == nil {
-			continue
-		}
-		if sqlGo.EmitMethodsWithDBArgument && sqlGo.EmitPreparedQueries {
-			return fmt.Errorf("invalid config: emit_methods_with_db_argument and emit_prepared_queries settings are mutually exclusive")
-		}
 		if sql.Database != nil {
 			if sql.Database.URI == "" && !sql.Database.Managed {
 				return fmt.Errorf("invalid config: database must be managed or have a non-empty URI")