feat: Add option to disable code actions

Code actions require additional analysis and developers may want to
disable them for performance reasons.

Resolves #1840

Author: atscott

client/src/client.ts

@@ -452,6 +452,10 @@ function constructArgs(
   if (disableAutomaticNgcc) {
     args.push('--disableAutomaticNgcc');
   }
+  const disableCodeActions = config.get<boolean>('angular.disableCodeActions');
+  if (disableCodeActions) {
+    args.push('--disableCodeActions');
+  }
 
   const forceStrictTemplates = config.get<boolean>('angular.forceStrictTemplates');
   if (forceStrictTemplates) {

package.json

@@ -146,6 +146,11 @@
           "default": false,
           "markdownDescription": "Disable the step to automatically run ngcc. [ngcc](https://github.com/angular/angular/blob/main/packages/compiler/design/architecture.md#high-level-proposal) is required to run and gather metadata from libraries not published with Ivy instructions. This can be run outside of VSCode instead (for example, as part of the build/rebuild in the CLI). Note that ngcc needs to run not only at startup, but also whenever the dependencies change. Failing to run ngcc when required can result in incomplete information and spurious errors reported by the language service."
         },
+        "angular.disableCodeActions": {
+          "type": "boolean",
+          "default": false,
+          "markdownDescription": "Disable code actions in Angular contexts, including quick fixes in template files which add missing imports. Some code actions require global project analysis, so it may be desirable to disable them for performance reasons."
+        },
         "angular.forceStrictTemplates": {
           "type": "boolean",
           "default": false,

server/src/cmdline_utils.ts

@@ -36,6 +36,7 @@ interface CommandLineOptions {
    * If true, skips the running ngcc when using Ivy LS.
    */
   disableAutomaticNgcc: boolean;
+  disableCodeActions: boolean;
   logFile?: string;
   logVerbosity?: string;
   logToConsole: boolean;
@@ -52,6 +53,7 @@ export function parseCommandLine(argv: string[]): CommandLineOptions {
     help: hasArgument(argv, '--help'),
     ivy: !hasArgument(argv, '--viewEngine'),
     disableAutomaticNgcc: hasArgument(argv, '--disableAutomaticNgcc'),
+    disableCodeActions: hasArgument(argv, '--disableCodeActions'),
     logFile: findArgument(argv, '--logFile'),
     logVerbosity: findArgument(argv, '--logVerbosity'),
     logToConsole: hasArgument(argv, '--logToConsole'),

server/src/server.ts

@@ -44,6 +44,7 @@ function main() {
     resolvedNgLsPath: ng.resolvedPath,
     ivy: isG3 ? true : options.ivy,
     disableAutomaticNgcc: options.disableAutomaticNgcc || options.untrustedWorkspace,
+    disableCodeActions: options.disableCodeActions,
     logToConsole: options.logToConsole,
     includeAutomaticOptionalChainCompletions: options.includeAutomaticOptionalChainCompletions,
     includeCompletionsWithSnippetText: options.includeCompletionsWithSnippetText,

server/src/session.ts

@@ -31,6 +31,7 @@ export interface SessionOptions {
   resolvedNgLsPath: string;
   ivy: boolean;
   disableAutomaticNgcc: boolean;
+  disableCodeActions: boolean;
   logToConsole: boolean;
   includeAutomaticOptionalChainCompletions: boolean;
   includeCompletionsWithSnippetText: boolean;
@@ -115,7 +116,7 @@ export class Session {
       }
     });
 
-    this.addProtocolHandlers(this.connection);
+    this.addProtocolHandlers(this.connection, options);
     this.projectService = this.createProjectService(options);
   }
 
@@ -183,8 +184,8 @@ export class Session {
     return projSvc;
   }
 
-  private addProtocolHandlers(conn: lsp.Connection) {
-    conn.onInitialize(p => this.onInitialize(p));
+  private addProtocolHandlers(conn: lsp.Connection, options: SessionOptions) {
+    conn.onInitialize(p => this.onInitialize(p, options));
     conn.onDidOpenTextDocument(p => this.onDidOpenTextDocument(p));
     conn.onDidCloseTextDocument(p => this.onDidCloseTextDocument(p));
     conn.onDidChangeTextDocument(p => this.onDidChangeTextDocument(p));
@@ -206,8 +207,10 @@ export class Session {
     conn.onCodeLens(p => this.onCodeLens(p));
     conn.onCodeLensResolve(p => this.onCodeLensResolve(p));
     conn.onSignatureHelp(p => this.onSignatureHelp(p));
-    conn.onCodeAction(p => this.onCodeAction(p));
-    conn.onCodeActionResolve(p => this.onCodeActionResolve(p));
+    if (!options.disableCodeActions) {
+      conn.onCodeAction(p => this.onCodeAction(p));
+      conn.onCodeActionResolve(p => this.onCodeActionResolve(p));
+    }
   }
 
   private onCodeAction(params: lsp.CodeActionParams): lsp.CodeAction[]|null {
@@ -707,7 +710,7 @@ export class Session {
     return project;
   }
 
-  private onInitialize(params: lsp.InitializeParams): lsp.InitializeResult {
+  private onInitialize(params: lsp.InitializeParams, options: SessionOptions): lsp.InitializeResult {
     this.snippetSupport =
         params.capabilities.textDocument?.completion?.completionItem?.snippetSupport;
     const serverOptions: ServerOptions = {
@@ -741,7 +744,7 @@ export class Session {
         workspace: {
           workspaceFolders: {supported: true},
         },
-        codeActionProvider: this.ivy ? {
+        codeActionProvider: (this.ivy && !options.disableCodeActions) ? {
           resolveProvider: true,
           // Now the Angular code action provider only supports `QuickFix`. If leave the
           // `codeActionKinds` empty, all action requests will be sent to the Angular language