Do no require exec/go plugin home to use fn plugins

api/types/errunabletofind.go

@@ -23,7 +23,7 @@ func (e *errUnableToFind) Error() string {
 		m = append(m, "('"+p.Value+"'; "+p.Key+")")
 	}
 	return fmt.Sprintf(
-		"unable to find plugin root - tried: %s", strings.Join(m, ", "))
+		"unable to find %s - tried: %s", e.what, strings.Join(m, ", "))
 }
 
 func NewErrUnableToFind(w string, a []Pair) *errUnableToFind {

api/types/pluginconfig.go

@@ -5,25 +5,6 @@ package types
 
 // PluginConfig holds plugin configuration.
 type PluginConfig struct {
-	// AbsPluginHome is the home of kustomize plugins.
-	// Kustomize plugin configuration files are k8s-style objects
-	// containing the fields 'apiVersion' and 'kind', e.g.
-	//   apiVersion: apps/v1
-	//   kind: Deployment
-	// kustomize reads plugin configuration data from a file path
-	// specified in the 'generators:' or 'transformers:' field of a
-	// kustomization file.  kustomize must then use this data to both
-	// locate the plugin and configure it.
-	// Every kustomize plugin (its code, its tests, its supporting data
-	// files, etc.) must be housed in its own directory at
-	//   ${AbsPluginHome}/${pluginApiVersion}/LOWERCASE(${pluginKind})
-	// where
-	//   - ${AbsPluginHome} is an absolute path, defined below.
-	//   - ${pluginApiVersion} is taken from the plugin config file.
-	//   - ${pluginKind} is taken from the plugin config file.
-	// The value of AbsPluginHome can be any absolute path.
-	AbsPluginHome string
-
 	// PluginRestrictions distinguishes plugin restrictions.
 	PluginRestrictions PluginRestrictions