Fix infinite loop when any file exclusions start with / (#1307)

See SuperchupuDev/tinyglobby#99

Fixes #1303

Author: thecrypticace

packages/tailwindcss-language-server/src/project-locator.test.ts

@@ -462,6 +462,43 @@ testLocator({
   ],
 })
 
+testLocator({
+  name: 'File exclusions starting with `/` do not cause traversal to loop forever',
+  fs: {
+    'index.css': css`
+      @import 'tailwindcss';
+    `,
+    'vendor/a.css': css`
+      @import 'tailwindcss';
+    `,
+    'vendor/nested/b.css': css`
+      @import 'tailwindcss';
+    `,
+    'src/vendor/c.css': css`
+      @import 'tailwindcss';
+    `,
+  },
+  settings: {
+    tailwindCSS: {
+      files: {
+        exclude: ['/vendor'],
+      },
+    } as Settings['tailwindCSS'],
+  },
+  expected: [
+    {
+      version: '4.1.1 (bundled)',
+      config: '/index.css',
+      content: [],
+    },
+    {
+      version: '4.1.1 (bundled)',
+      config: '/src/vendor/c.css',
+      content: [],
+    },
+  ],
+})
+
 // ---
 
 function testLocator({
@@ -502,7 +539,7 @@ function testLocator({
   })
 }
 
-async function prepare({ root }: TestUtils) {
+async function prepare({ root }: TestUtils<any>) {
   let defaultSettings = {
     tailwindCSS: {
       files: {

packages/tailwindcss-language-server/src/project-locator.ts

@@ -274,11 +274,22 @@ export class ProjectLocator {
   }
 
   private async findConfigs(): Promise<ConfigEntry[]> {
+    let ignore = this.settings.tailwindCSS.files.exclude
+
+    // NOTE: This is a temporary workaround for a bug in the `fdir` package used
+    // by `tinyglobby`. It infinite loops when the ignore pattern starts with
+    // a `/`. This should be removed once the bug is fixed.
+    ignore = ignore.map((pattern) => {
+      if (!pattern.startsWith('/')) return pattern
+
+      return pattern.slice(1)
+    })
+
     // Look for config files and CSS files
     let files = await glob({
       patterns: [`**/${CONFIG_GLOB}`, `**/${CSS_GLOB}`],
       cwd: this.base,
-      ignore: this.settings.tailwindCSS.files.exclude,
+      ignore,
       onlyFiles: true,
       absolute: true,
       followSymbolicLinks: true,

packages/vscode-tailwindcss/CHANGELOG.md

@@ -2,7 +2,7 @@
 
 ## Prerelease
 
-- Nothing yet!
+- Prevent infinite loop when any file exclusion starts with `/` ([#1307](https://github.com/tailwindlabs/tailwindcss-intellisense/pull/1307))
 
 # 0.14.14