From 7d03da02f0b353191b0dbce95e62a5dc4fd426b6 Mon Sep 17 00:00:00 2001
From: Jordan Pittman <jordan@cryptica.me>
Date: Thu, 27 Feb 2025 17:18:56 -0500
Subject: [PATCH 1/3] Pass cancellation tokens through to findFiles

---
 packages/vscode-tailwindcss/src/extension.ts | 25 ++++++++++++++++----
 1 file changed, 21 insertions(+), 4 deletions(-)

diff --git a/packages/vscode-tailwindcss/src/extension.ts b/packages/vscode-tailwindcss/src/extension.ts
index c0c7b9e7..1271d789 100755
--- a/packages/vscode-tailwindcss/src/extension.ts
+++ b/packages/vscode-tailwindcss/src/extension.ts
@@ -6,6 +6,7 @@ import type {
   ConfigurationScope,
   WorkspaceConfiguration,
   Selection,
+  CancellationToken,
 } from 'vscode'
 import {
   workspace as Workspace,
@@ -16,6 +17,7 @@ import {
   Position,
   Range,
   RelativePattern,
+  CancellationTokenSource,
 } from 'vscode'
 import type {
   DocumentFilter,
@@ -581,18 +583,24 @@ export async function activate(context: ExtensionContext) {
       return
     }
 
-    if (!(await anyFolderNeedsLanguageServer(Workspace.workspaceFolders ?? []))) {
+    let source: CancellationTokenSource | null = new CancellationTokenSource()
+
+    if (!(await anyFolderNeedsLanguageServer(Workspace.workspaceFolders ?? [], source!.token))) {
+      source?.dispose()
       return
     }
 
+    source?.dispose()
+
     await bootWorkspaceClient()
   }
 
   async function anyFolderNeedsLanguageServer(
     folders: readonly WorkspaceFolder[],
+    token: CancellationToken,
   ): Promise<boolean> {
     for (let folder of folders) {
-      if (await folderNeedsLanguageServer(folder)) {
+      if (await folderNeedsLanguageServer(folder, token)) {
         return true
       }
     }
@@ -600,7 +608,10 @@ export async function activate(context: ExtensionContext) {
     return false
   }
 
-  async function folderNeedsLanguageServer(folder: WorkspaceFolder): Promise<boolean> {
+  async function folderNeedsLanguageServer(
+    folder: WorkspaceFolder,
+    token: CancellationToken,
+  ): Promise<boolean> {
     let settings = Workspace.getConfiguration('tailwindCSS', folder)
     if (settings.get('experimental.configFile') !== null) {
       return true
@@ -616,13 +627,19 @@ export async function activate(context: ExtensionContext) {
       new RelativePattern(folder, `**/${CONFIG_GLOB}`),
       exclude,
       1,
+      token,
     )
 
     for (let file of configFiles) {
       return true
     }
 
-    let cssFiles = await Workspace.findFiles(new RelativePattern(folder, `**/${CSS_GLOB}`), exclude)
+    let cssFiles = await Workspace.findFiles(
+      new RelativePattern(folder, `**/${CSS_GLOB}`),
+      exclude,
+      undefined,
+      token,
+    )
 
     for (let file of cssFiles) {
       outputChannel.appendLine(`Checking if ${file.fsPath} may be Tailwind-related…`)

From 63ce8d92f7a9411d51810184cf527066893c8272 Mon Sep 17 00:00:00 2001
From: Jordan Pittman <jordan@cryptica.me>
Date: Thu, 27 Feb 2025 17:19:14 -0500
Subject: [PATCH 2/3] Cancel initial file search if it takes too long

The presence of symlinks can cause ripgrep processes to spawn and run for a really long time on some systems and/or projects. We set an upper limit of 15s to search for files in a workspace before we cancell the process.
---
 packages/vscode-tailwindcss/src/extension.ts | 10 ++++++++++
 1 file changed, 10 insertions(+)

diff --git a/packages/vscode-tailwindcss/src/extension.ts b/packages/vscode-tailwindcss/src/extension.ts
index 1271d789..a3748616 100755
--- a/packages/vscode-tailwindcss/src/extension.ts
+++ b/packages/vscode-tailwindcss/src/extension.ts
@@ -584,6 +584,16 @@ export async function activate(context: ExtensionContext) {
     }
 
     let source: CancellationTokenSource | null = new CancellationTokenSource()
+    source.token.onCancellationRequested(() => {
+      source?.dispose()
+      source = null
+      outputChannel.appendLine(
+        'Server was not started. Search for Tailwind CSS-related files was taking too long.',
+      )
+    })
+
+    // Cancel the search after roughly 15 seconds
+    setTimeout(() => source?.cancel(), 15_000)
 
     if (!(await anyFolderNeedsLanguageServer(Workspace.workspaceFolders ?? [], source!.token))) {
       source?.dispose()

From c7f09e52e70cb9d1166e25cb803aaaf9e8dc41a8 Mon Sep 17 00:00:00 2001
From: Jordan Pittman <jordan@cryptica.me>
Date: Thu, 27 Feb 2025 17:22:08 -0500
Subject: [PATCH 3/3] Update changelog

---
 packages/vscode-tailwindcss/CHANGELOG.md | 1 +
 1 file changed, 1 insertion(+)

diff --git a/packages/vscode-tailwindcss/CHANGELOG.md b/packages/vscode-tailwindcss/CHANGELOG.md
index d22e380c..01bf3b4a 100644
--- a/packages/vscode-tailwindcss/CHANGELOG.md
+++ b/packages/vscode-tailwindcss/CHANGELOG.md
@@ -3,6 +3,7 @@
 ## Prerelease
 
 - v4: Support loading bundled versions of some first-party plugins ([#1240](https://github.com/tailwindlabs/tailwindcss-intellisense/pull/1240))
+- Cancel initial file search if it takes too long ([#1242](https://github.com/tailwindlabs/tailwindcss-intellisense/pull/1242))
 
 # 0.14.8