(feat) throw error on invalid tsconfig includes/excludes and on unknown options (#1974)

#1952
#1951

Author: dummdidumm

packages/language-server/src/plugins/typescript/service.ts

@@ -24,6 +24,7 @@ import {
 export interface LanguageServiceContainer {
     readonly tsconfigPath: string;
     readonly compilerOptions: ts.CompilerOptions;
+    readonly configErrors: ts.Diagnostic[];
     /**
      * @internal Public for tests only
      */
@@ -167,6 +168,7 @@ async function createLanguageService(
 
     const {
         options: compilerOptions,
+        errors: configErrors,
         fileNames: files,
         raw,
         extendedConfigPaths
@@ -247,6 +249,7 @@ async function createLanguageService(
     return {
         tsconfigPath,
         compilerOptions,
+        configErrors,
         getService: () => languageService,
         updateSnapshot,
         deleteSnapshot,

packages/language-server/src/svelte-check.ts

@@ -181,6 +181,12 @@ export class SvelteCheck {
 
     private async getDiagnosticsForTsconfig(tsconfigPath: string) {
         const lsContainer = await this.getLSContainer(tsconfigPath);
+
+        const noInputsFoundError = lsContainer.configErrors?.find((e) => e.code === 18003);
+        if (noInputsFoundError) {
+            throw new Error(noInputsFoundError.messageText.toString());
+        }
+
         const lang = lsContainer.getService();
         const files = lang.getProgram()?.getSourceFiles() || [];
         const options = lang.getProgram()?.getCompilerOptions() || {};

packages/svelte-check/src/options.ts

@@ -81,7 +81,9 @@ export function parseOptions(cb: (opts: SvelteCheckCliOptions) => any) {
             });
         });
 
-    prog.parse(process.argv);
+    prog.parse(process.argv, {
+        unknown: (arg) => `Unknown option ${arg}`
+    });
 }
 
 const outputFormats = ['human', 'human-verbose', 'machine'] as const;

packages/svelte-check/src/writers.ts

@@ -112,8 +112,13 @@ export class HumanFriendlyWriter implements Writer {
         const message = [
             'svelte-check found ',
             `${errorCount} ${errorCount === 1 ? 'error' : 'errors'} and `,
-            `${warningCount} ${warningCount === 1 ? 'warning' : 'warnings'} in `,
-            `${fileCountWithProblems} ${fileCountWithProblems === 1 ? 'file' : 'files'}\n`
+            `${warningCount} ${warningCount === 1 ? 'warning' : 'warnings'}`,
+            `${
+                fileCountWithProblems
+                    ? // prettier-ignore
+                      ` in ${fileCountWithProblems} ${fileCountWithProblems === 1 ? 'file' : 'files'}`
+                    : ''
+            }\n`
         ].join('');
         if (errorCount !== 0) {
             this.stream.write(pc.red(message));