package.json: remove go.languageServerExperimentalFeatures setting

The deprecation note was present for over two years. No objection
was raised.

Updates golang/vscode-go#1109
Updates golang/vscode-go#50

Change-Id: Ia78b894a200f4120c76fb473ec84ae39578f215f
Reviewed-on: https://go-review.googlesource.com/c/vscode-go/+/501199
Run-TryBot: Hyang-Ah Hana Kim <hyangah@gmail.com>
Reviewed-by: Jamal Carvalho <jamal@golang.org>
TryBot-Result: kokoro <noreply+kokoro@google.com>

docs/settings.md

@@ -369,19 +369,6 @@ Default: `false`
 If true, then `-i` flag will be passed to `go build` everytime the code is compiled. Since Go 1.10, setting this may be unnecessary unless you are in GOPATH mode and do not use the language server.
 
 Default: `false`
-### `go.languageServerExperimentalFeatures`
-
-Temporary flag to enable/disable diagnostics from the language server. This setting will be deprecated soon. Please see and response to [Issue 50](https://github.com/golang/vscode-go/issues/50).
-| Properties | Description |
-| --- | --- |
-| `diagnostics` | If true, the language server will provide build, vet errors and the extension will ignore the `buildOnSave`, `vetOnSave` settings. <br/> Default: `true` |
-
-Default:
-```
-{
-	"diagnostics" :	true,
-}
-```
 ### `go.languageServerFlags`
 
 Flags like -rpc.trace and -logfile to be used while running the language server.

package.json

@@ -1582,21 +1582,6 @@
           "default": [],
           "description": "Flags like -rpc.trace and -logfile to be used while running the language server."
         },
-        "go.languageServerExperimentalFeatures": {
-          "type": "object",
-          "properties": {
-            "diagnostics": {
-              "type": "boolean",
-              "default": true,
-              "description": "If true, the language server will provide build, vet errors and the extension will ignore the `buildOnSave`, `vetOnSave` settings."
-            }
-          },
-          "additionalProperties": false,
-          "default": {
-            "diagnostics": true
-          },
-          "markdownDescription": "Temporary flag to enable/disable diagnostics from the language server. This setting will be deprecated soon. Please see and response to [Issue 50](https://github.com/golang/vscode-go/issues/50)."
-        },
         "go.trace.server": {
           "type": "string",
           "enum": [

src/goCheck.ts

@@ -69,7 +69,7 @@ export function check(
 	// If a user has enabled diagnostics via a language server,
 	// then we disable running build or vet to avoid duplicate errors and warnings.
 	const lspConfig = buildLanguageServerConfig(goConfig);
-	const disableBuildAndVet = lspConfig.enabled && lspConfig.features.diagnostics;
+	const disableBuildAndVet = lspConfig.enabled;
 
 	let testPromise: Thenable<boolean>;
 	const testConfig: TestConfig = {

src/goMain.ts

@@ -392,21 +392,4 @@ async function showDeprecationWarning() {
 			}
 		}
 	}
-	const experimentalFeatures = cfg['languageServerExperimentalFeatures'];
-	if (experimentalFeatures) {
-		// TODO(golang/vscode-go#50): Eventually notify about deprecation of
-		// all of the settings. See golang/vscode-go#1109 too.
-		// The `diagnostics` setting is still used as a workaround for running custom vet.
-		const promptKey = 'promptedLanguageServerExperimentalFeatureDeprecation';
-		const prompted = getFromGlobalState(promptKey, false);
-		if (!prompted && experimentalFeatures['diagnostics'] === false) {
-			const msg = `The 'go.languageServerExperimentalFeature.diagnostics' setting will be deprecated soon.
-	If you would like additional configuration for diagnostics from gopls, please see and response to [Issue 50](https://go.dev/s/vscode-issue/50).`;
-			const selected = await vscode.window.showInformationMessage(msg, "Don't show again");
-			switch (selected) {
-				case "Don't show again":
-					updateGlobalState(promptKey, true);
-			}
-		}
-	}
 }

src/goTools.ts

@@ -227,8 +227,7 @@ export function goplsStaticcheckEnabled(
 	) {
 		return false;
 	}
-	const features = goConfig['languageServerExperimentalFeatures'];
-	return !features || features['diagnostics'] === true;
+	return true;
 }
 
 export const gocodeClose = async (env: NodeJS.Dict<string>): Promise<string> => {

src/language/goLanguageServer.ts

@@ -72,7 +72,6 @@ export interface LanguageServerConfig {
 	flags: string[];
 	env: any;
 	features: {
-		diagnostics: boolean;
 		formatter?: GoDocumentFormattingEditProvider;
 	};
 	checkForUpdates: string;
@@ -616,9 +615,6 @@ export async function buildLanguageClient(
 					diagnostics: vscode.Diagnostic[],
 					next: HandleDiagnosticsSignature
 				) => {
-					if (!cfg.features.diagnostics) {
-						return null;
-					}
 					const { buildDiagnosticCollection, lintDiagnosticCollection, vetDiagnosticCollection } = goCtx;
 					// Deduplicate diagnostics with those found by the other tools.
 					removeDuplicateDiagnostics(vetDiagnosticCollection, uri, diagnostics);
@@ -925,7 +921,6 @@ export async function watchLanguageServerConfiguration(goCtx: GoExtensionContext
 	if (
 		e.affectsConfiguration('go.useLanguageServer') ||
 		e.affectsConfiguration('go.languageServerFlags') ||
-		e.affectsConfiguration('go.languageServerExperimentalFeatures') ||
 		e.affectsConfiguration('go.alternateTools') ||
 		e.affectsConfiguration('go.toolsEnvVars') ||
 		e.affectsConfiguration('go.formatTool')
@@ -954,7 +949,6 @@ export function buildLanguageServerConfig(goConfig: vscode.WorkspaceConfiguratio
 		features: {
 			// TODO: We should have configs that match these names.
 			// Ultimately, we should have a centralized language server config rather than separate fields.
-			diagnostics: goConfig['languageServerExperimentalFeatures']['diagnostics'],
 			formatter: formatter
 		},
 		env: toolExecutionEnvironment(),

test/gopls/update.test.ts

@@ -210,9 +210,7 @@ suite('gopls update tests', () => {
 				version: undefined,
 				checkForUpdates: 'proxy',
 				env: {},
-				features: {
-					diagnostics: true
-				},
+				features: {},
 				flags: [],
 				modtime: new Date(),
 				serverName: 'gopls'