Merge pull request #211 from tal-rofe/allow-typescript-config

feat: 🔥 allow TypeScript configuration for Inflint

README.md

@@ -59,9 +59,7 @@ Configuration can be set in the following files:
 -   a `package.json` property: `"inflint": {...}`
 -   a `.inflintrc` file in JSON or YAML format
 -   a `.inflintrc.json`, `.inflintrc.yaml`, `.inflintrc.yml`, `.inflintrc.js`, `.inflintrc.ts`, or `.inflintrc.cjs` file
--   a `inflint.config.js`, or `inflint.config.cjs` CommonJS module exporting an object
-
-Currently, a TypeScript configuration file is not supported: https://github.com/Codex-/cosmiconfig-typescript-loader/issues/60
+-   a `inflint.config.ts`, `inflint.config.js`, or `inflint.config.cjs` CommonJS module exporting an object
 
 ### Rules format
 When applying rules either via the CLI or other configuration, you must follow the rules format.

package.json

@@ -64,7 +64,8 @@
 	"dependencies": {
 		"@expo/spawn-async": "1.7.2",
 		"chalk": "5.3.0",
-		"cosmiconfig": "8.1.3",
+		"cosmiconfig": "8.3.6",
+		"cosmiconfig-typescript-loader": "5.0.0",
 		"fast-glob": "3.3.1",
 		"micromatch": "4.0.5",
 		"minimist": "1.2.8",

src/modules/app/utils/merge-configurations.ts

@@ -1,6 +1,7 @@
 import path from 'node:path';
 
 import { cosmiconfig } from 'cosmiconfig';
+import { TypeScriptLoader } from 'cosmiconfig-typescript-loader';
 
 import type { IBaseConfiguration, ISourceConfiguration } from '@/interfaces/configuration';
 import { withCleanObject } from '@/utils/object';
@@ -56,7 +57,7 @@ export const recurseSourceConfiguration = async (
 	}
 
 	const extendsFilePath = path.join(configPath, '..', config.extends);
-	const explorer = cosmiconfig('');
+	const explorer = cosmiconfig('', { loaders: { '.ts': TypeScriptLoader() } });
 	const result = await explorer.load(extendsFilePath).catch(() => null);
 
 	if (!result) {

src/modules/configuration/index.ts

@@ -2,6 +2,7 @@ import path from 'node:path';
 
 import { cosmiconfig } from 'cosmiconfig';
 import type { CosmiconfigResult } from 'cosmiconfig/dist/types';
+import { TypeScriptLoader } from 'cosmiconfig-typescript-loader';
 
 import type { ISourceConfiguration } from '@/interfaces/configuration';
 import CLILoggerModule from '@/shared/modules/cli-logger';
@@ -15,6 +16,7 @@ const StartConfiguration = async (
 ): Promise<[ISourceConfiguration, string | undefined] | null> => {
 	const explorer = cosmiconfig(CONFIGURATION_MODULE_NAME, {
 		searchPlaces: configFilePath ? [configFilePath] : DEFAULT_SEARCH_PLACES,
+		loaders: { '.ts': TypeScriptLoader() },
 	});
 
 	let result: CosmiconfigResult | null;