restructure to follow entAddExtPlugins() go build tag usage pattern

helper/builtinplugins/registry.go

@@ -5,7 +5,6 @@ package builtinplugins
 
 import (
 	"context"
-	"maps"
 
 	credJWT "github.com/hashicorp/vault-plugin-auth-jwt"
 	logicalKv "github.com/hashicorp/vault-plugin-secrets-kv"
@@ -54,8 +53,8 @@ func removedFactory(ctx context.Context, config *logical.BackendConfig) (logical
 	return removedBackend, nil
 }
 
-func newCommonRegistry() *registry {
-	reg := &registry{
+func newMinimalRegistry() *registry {
+	return &registry{
 		credentialBackends: map[string]credentialBackend{
 			"approle":  {Factory: credAppRole.Factory},
 			"cert":     {Factory: credCert.Factory},
@@ -71,6 +70,12 @@ func newCommonRegistry() *registry {
 			"transit": {Factory: logicalTransit.Factory},
 		},
 	}
+}
+
+func newRegistry() *registry {
+	reg := newMinimalRegistry()
+
+	extendAddonPlugins(reg)
 
 	entAddExtPlugins(reg)
 
@@ -159,12 +164,6 @@ func (r *registry) DeprecationStatus(name string, pluginType consts.PluginType)
 	return consts.Unknown, false
 }
 
-func (r *registry) Extend(other *registry) {
-	maps.Copy(other.credentialBackends, r.credentialBackends)
-	maps.Copy(other.databasePlugins, r.databasePlugins)
-	maps.Copy(other.logicalBackends, r.logicalBackends)
-}
-
 func toFunc(ifc interface{}) func() (interface{}, error) {
 	return func() (interface{}, error) {
 		return ifc, nil

helper/builtinplugins/registry_full.go

@@ -6,6 +6,8 @@
 package builtinplugins
 
 import (
+	"maps"
+
 	credAliCloud "github.com/hashicorp/vault-plugin-auth-alicloud"
 	credAzure "github.com/hashicorp/vault-plugin-auth-azure"
 	credCF "github.com/hashicorp/vault-plugin-auth-cf"
@@ -138,10 +140,10 @@ func newFullAddonRegistry() *registry {
 	}
 }
 
-func newRegistry() *registry {
-	reg := newFullAddonRegistry()
-
-	reg.Extend(newCommonRegistry())
+func extendAddonPlugins(reg *registry) {
+	addonReg := newFullAddonRegistry()
 
-	return reg
+	maps.Copy(reg.credentialBackends, addonReg.credentialBackends)
+	maps.Copy(reg.databasePlugins, addonReg.databasePlugins)
+	maps.Copy(reg.logicalBackends, addonReg.logicalBackends)
 }

helper/builtinplugins/registry_full_test.go

@@ -11,17 +11,17 @@ import (
 
 func Test_newRegistry(t *testing.T) {
 	actual := newRegistry()
-	expCommon := newCommonRegistry()
+	expMinimal := newMinimalRegistry()
 	expFullAddon := newFullAddonRegistry()
 
-	assert.Equal(t, len(actual.credentialBackends), len(expCommon.credentialBackends)+len(expFullAddon.credentialBackends),
+	assert.Equal(t, len(expMinimal.credentialBackends)+len(expFullAddon.credentialBackends), len(actual.credentialBackends),
 		"newRegistry() total auth backends mismatch total of common and full addon registries")
-	assert.Equal(t, len(actual.databasePlugins), len(expCommon.databasePlugins)+len(expFullAddon.databasePlugins),
+	assert.Equal(t, len(expMinimal.databasePlugins)+len(expFullAddon.databasePlugins), len(actual.databasePlugins),
 		"newRegistry() total database plugins mismatch total of common and full addon registries")
-	assert.Equal(t, len(actual.logicalBackends), len(expCommon.logicalBackends)+len(expFullAddon.logicalBackends),
+	assert.Equal(t, len(expMinimal.logicalBackends)+len(expFullAddon.logicalBackends), len(actual.logicalBackends),
 		"newRegistry() total logical backends mismatch total of common and full addon registries")
 
-	assertRegistrySubset(t, actual, expCommon, "common")
+	assertRegistrySubset(t, actual, expMinimal, "common")
 	assertRegistrySubset(t, actual, expFullAddon, "full addon")
 }
 

helper/builtinplugins/registry_min.go

@@ -5,6 +5,6 @@
 
 package builtinplugins
 
-func newRegistry() *registry {
-	return newCommonRegistry()
+func extendAddonPlugins(_ *registry) {
+	// No-op
 }