refactor: remove support for VE projects

Author: atscott

.bazelignore

@@ -1,5 +1,4 @@
 node_modules/
-v12_language_service/node_modules
 dist/
 integration/pre_apf_project/node_modules/
 integration/project/node_modules/

BUILD.bazel

@@ -41,7 +41,6 @@ npm_package(
         "//client:index.js",
         "//server:npm_files",
         "//syntaxes:npm_files",
-        "//v12_language_service:npm_files",
         # Transitive closure of npm deps needed for vsce; this set was determined manually by
         # running `bazel build //:vsix` and burning down missing packages. We do this so that we
         # don't have to run an additional `npm install` action to create a node_modules within the

WORKSPACE

@@ -75,7 +75,6 @@ npm_translate_lock(
     npmrc = "//:.npmrc",
     data = [
         "//:pnpm-workspace.yaml",
-        "//v12_language_service:package.json",
         # PLACE_HOLDER_FOR_angular/angular_packages/language-service/build.sh
     ],
     verify_node_modules_ignored = "//:.bazelignore",

client/src/client.ts

@@ -402,8 +402,7 @@ function getProbeLocations(bundled: string): string[] {
  * Construct the arguments that's used to spawn the server process.
  * @param ctx vscode extension context
  */
-function constructArgs(
-    ctx: vscode.ExtensionContext, viewEngine: boolean, isTrustedWorkspace: boolean): string[] {
+function constructArgs(ctx: vscode.ExtensionContext, isTrustedWorkspace: boolean): string[] {
   const config = vscode.workspace.getConfiguration();
   const args: string[] = ['--logToConsole'];
 
@@ -416,15 +415,7 @@ function constructArgs(
   }
 
   const ngProbeLocations = getProbeLocations(ctx.extensionPath);
-  if (viewEngine) {
-    args.push('--viewEngine');
-    args.push('--ngProbeLocations', [
-      path.join(ctx.extensionPath, 'v12_language_service'),
-      ...ngProbeLocations,
-    ].join(','));
-  } else {
-    args.push('--ngProbeLocations', ngProbeLocations.join(','));
-  }
+  args.push('--ngProbeLocations', ngProbeLocations.join(','));
 
   const includeAutomaticOptionalChainCompletions =
       config.get<boolean>('angular.suggest.includeAutomaticOptionalChainCompletions');
@@ -462,31 +453,14 @@ function getServerOptions(ctx: vscode.ExtensionContext, debug: boolean): lsp.Nod
   // will return false even when the value is not set. If value is false, then
   // we need to check if all projects support Ivy language service.
   const config = vscode.workspace.getConfiguration();
-  let viewEngine: boolean = config.get('angular.view-engine') || !allProjectsSupportIvy();
-  if (viewEngine && !allProjectsSupportVE()) {
-    viewEngine = false;
-    if (config.get('angular.view-engine')) {
-      vscode.window.showErrorMessage(
-          `The legacy View Engine option is enabled but the workspace contains a version 13 Angular project.` +
-              ` Legacy View Engine will be disabled since support for it was dropped in v13.`,
-      );
-    } else if (!allProjectsSupportIvy() && !allProjectsSupportVE()) {
-      vscode.window.showErrorMessage(
-          `The workspace contains a project that does not support legacy View Engine (Angular v13+) and a project that does not support the new current runtime (v8 and below).` +
-          `The extension will not work for the legacy project in this workspace.`);
-    }
-  }
 
   // Node module for the language server
-  const args = constructArgs(ctx, viewEngine, vscode.workspace.isTrusted);
+  const args = constructArgs(ctx, vscode.workspace.isTrusted);
   const prodBundle = ctx.asAbsolutePath('server');
   const devBundle = ctx.asAbsolutePath(path.join('bazel-bin', 'server', 'src', 'server.js'));
   // VS Code Insider launches extensions in debug mode by default but users
   // install prod bundle so we have to check whether dev bundle exists.
   const latestServerModule = debug && fs.existsSync(devBundle) ? devBundle : prodBundle;
-  const v12ServerModule = ctx.asAbsolutePath(
-      path.join('v12_language_service', 'node_modules', '@angular', 'language-server'));
-  const module = viewEngine ? v12ServerModule : latestServerModule;
 
   // Argv options for Node.js
   const prodExecArgv: string[] = [];
@@ -498,7 +472,7 @@ function getServerOptions(ctx: vscode.ExtensionContext, debug: boolean): lsp.Nod
   ];
 
   return {
-    module,
+    module: latestServerModule,
     transport: lsp.TransportKind.ipc,
     args,
     options: {
@@ -507,29 +481,3 @@ function getServerOptions(ctx: vscode.ExtensionContext, debug: boolean): lsp.Nod
     },
   };
 }
-
-/**
- * Returns true if all projects in the workspace support Ivy LS, otherwise
- * return false.
- */
-function allProjectsSupportIvy() {
-  const workspaceFolders = vscode.workspace.workspaceFolders || [];
-  for (const workspaceFolder of workspaceFolders) {
-    const angularCore = resolve('@angular/core', workspaceFolder.uri.fsPath);
-    if (angularCore?.version.greaterThanOrEqual(new Version('9')) === false) {
-      return false;
-    }
-  }
-  return true;
-}
-
-function allProjectsSupportVE() {
-  const workspaceFolders = vscode.workspace.workspaceFolders || [];
-  for (const workspaceFolder of workspaceFolders) {
-    const angularCore = resolve('@angular/core', workspaceFolder.uri.fsPath);
-    if (angularCore?.version.greaterThanOrEqual(new Version('13')) === true) {
-      return false;
-    }
-  }
-  return true;
-}

pnpm-workspace.yaml

@@ -1,2 +0,0 @@
-packages:
-  - v12_language_service

server/src/version_provider.ts

@@ -13,7 +13,7 @@ import url from 'url';
 import {NodeModule, resolve, Version} from '../../common/resolver';
 
 const MIN_TS_VERSION = '4.8';
-const MIN_NG_VERSION = '13.0';
+const MIN_NG_VERSION = '15.0';
 const TSSERVERLIB = 'typescript/lib/tsserverlibrary';
 
 /**