plugin: Deprecate bundled plugins (#1160)

Author: wata727

cmd/inspect.go

@@ -51,6 +51,7 @@ func (cli *CLI) inspect(opts Options, dir string, filterFiles []string) int {
 		for addr := range reqs {
 			if addr.Type == "aws" {
 				log.Print("[INFO] AWS provider requirements found. Enable the plugin `aws` automatically")
+				fmt.Fprintln(cli.errStream, "WARNING: The plugin `aws` is not explicitly enabled. The bundled plugin will be enabled instead, but it is deprecated and will be removed in a future version. Please see https://github.com/terraform-linters/tflint/pull/1160 for details.")
 				cfg.Plugins["aws"] = &tflint.PluginConfig{
 					Name:    "aws",
 					Enabled: true,

cmd/version.go

@@ -48,6 +48,7 @@ func (cli *CLI) printVersion(opts Options) int {
 		for addr := range reqs {
 			if addr.Type == "aws" {
 				log.Print("[INFO] AWS provider requirements found. Enable the plugin `aws` automatically")
+				fmt.Fprintln(cli.errStream, "WARNING: The plugin `aws` is not explicitly enabled. The bundled plugin will be enabled instead, but it is deprecated and will be removed in a future version. Please see https://github.com/terraform-linters/tflint/pull/1160 for details.")
 				cfg.Plugins["aws"] = &tflint.PluginConfig{
 					Name:    "aws",
 					Enabled: true,

langserver/handler.go

@@ -35,7 +35,7 @@ func NewHandler(configPath string, cliConfig *tflint.Config) (jsonrpc2.Handler,
 
 	// AWS plugin is automatically enabled for the backward compatibility.
 	if _, exists := cfg.Plugins["aws"]; !exists {
-		log.Print("[INFO] Plugin `aws` is automatically enabled when the `aws` plugin configuration not found")
+		log.Print("WARNING: The plugin `aws` is not explicitly enabled. The bundled plugin will be enabled instead, but it is deprecated and will be removed in a future version. Please see https://github.com/terraform-linters/tflint/pull/1160 for details.")
 		cfg.Plugins["aws"] = &tflint.PluginConfig{
 			Name:    "aws",
 			Enabled: true,