test: ignore git-ignored files from teststest/no-git-ignore

Fix running `npm run test` when your development setup has other apps
checked out - like having the viewer app installed locally in `apps`.

Signed-off-by: Ferdinand Thiessen <opensource@fthiessen.de>

3 files changed, 58 insertions, 36 deletions

diff --git a/build/files-checker.php b/build/files-checker.php
index 2282b525a4d..4cbd0874247 100644
--- a/build/files-checker.php
+++ b/build/files-checker.php
@@ -85,7 +85,7 @@ $expectedFiles = [
 	'tsconfig.json',
 	'vendor-bin',
 	'version.php',
-	'vitest.config.ts',
+	'vitest.config.mts',
 	'webpack.common.js',
 	'webpack.config.js',
 	'webpack.modules.js',
diff --git a/vitest.config.mts b/vitest.config.mts
new file mode 100644
index 00000000000..4fe5bd4d32f
--- /dev/null
+++ b/vitest.config.mts
@@ -0,0 +1,57 @@
+/**
+ * SPDX-FileCopyrightText: 2023-2024 Nextcloud GmbH and Nextcloud contributors
+ * SPDX-License-Identifier: CC0-1.0
+ */
+import { defaultExclude, defineConfig } from 'vitest/config'
+import vue from '@vitejs/plugin-vue2'
+import { exec } from 'node:child_process'
+import { promisify } from 'node:util'
+
+const gitIgnore: string[] = []
+// get all files ignored in the apps directory (e.g. if putting `view` app there).
+try {
+	const execAsync = promisify(exec)
+	const { stdout } = await execAsync('git check-ignore apps/*', { cwd: __dirname })
+	gitIgnore.push(...stdout.split('\n').filter(Boolean))
+	// eslint-disable-next-line no-console
+	console.log('Git ignored files excluded from tests: ', gitIgnore)
+} catch (error) {
+	// we can ignore error code 1 as this just means there are no ignored files
+	if (error.code !== 1) {
+		// but otherwise something bad is happening and we should re-throw
+		throw error
+	}
+}
+
+export default defineConfig({
+	plugins: [vue()],
+	test: {
+		include: ['{apps,core}/**/*.{test,spec}.?(c|m)[jt]s?(x)'],
+		environment: 'jsdom',
+		environmentOptions: {
+			jsdom: {
+				url: 'http://nextcloud.local',
+			},
+		},
+		coverage: {
+			include: ['apps/*/src/**', 'core/src/**'],
+			exclude: ['**.spec.*', '**.test.*', '**.cy.*', 'core/src/tests/**'],
+			provider: 'v8',
+			reporter: ['lcov', 'text'],
+		},
+		setupFiles: [
+			'__tests__/mock-window.js',
+			'__tests__/setup-testing-library.js',
+		],
+		exclude: [
+			...defaultExclude,
+			...gitIgnore,
+		],
+		globalSetup: '__tests__/setup-global.js',
+		server: {
+			deps: {
+				inline: [/@nextcloud\//],
+			},
+		},
+	},
+})
diff --git a/vitest.config.ts b/vitest.config.ts
deleted file mode 100644
index 690598d9053..00000000000
--- a/vitest.config.ts
+++ /dev/null
@@ -1,35 +0,0 @@
-/**
- * SPDX-FileCopyrightText: 2023-2024 Nextcloud GmbH and Nextcloud contributors
- * SPDX-License-Identifier: CC0-1.0
- */
-import { defineConfig } from 'vitest/config'
-import vue from '@vitejs/plugin-vue2'
-
-export default defineConfig({
-	plugins: [vue()],
-	test: {
-		include: ['{apps,core}/**/*.{test,spec}.?(c|m)[jt]s?(x)'],
-		environment: 'jsdom',
-		environmentOptions: {
-			jsdom: {
-				url: 'http://nextcloud.local',
-			},
-		},
-		coverage: {
-			include: ['apps/*/src/**', 'core/src/**'],
-			exclude: ['**.spec.*', '**.test.*', '**.cy.*', 'core/src/tests/**'],
-			provider: 'v8',
-			reporter: ['lcov', 'text'],
-		},
-		setupFiles: [
-			'__tests__/mock-window.js',
-			'__tests__/setup-testing-library.js',
-		],
-		globalSetup: '__tests__/setup-global.js',
-		server: {
-			deps: {
-				inline: [/@nextcloud\//],
-			},
-		},
-	},
-})