From e3e85b364fc62a19b97a4250854580132e7967c7 Mon Sep 17 00:00:00 2001
From: Tim Neutkens <tim@timneutkens.nl>
Date: Thu, 29 Jan 2026 15:17:50 +0100
Subject: [PATCH] [tailwindcss-vite] Add Register dependency messages logline
 (#19611)
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The PostCSS implementation has a debug logline for registering
dependencies but this is missing for @tailwindcss/vite.

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## Summary

Adds the "Register dependency messages" instrumentation span to the Vite
plugin's dependency registration code, matching the existing
implementation in @tailwindcss/postcss.

This ensures consistent debug instrumentation across both bundler
integrations when DEBUG is enabled.

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## Test plan

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---
 packages/@tailwindcss-vite/src/index.ts | 2 ++
 1 file changed, 2 insertions(+)

diff --git a/packages/@tailwindcss-vite/src/index.ts b/packages/@tailwindcss-vite/src/index.ts
index 341c662b1..4ad70ba43 100644
--- a/packages/@tailwindcss-vite/src/index.ts
+++ b/packages/@tailwindcss-vite/src/index.ts
@@ -375,6 +375,7 @@ class Root {
     }
 
     if (this.compiler.features & Features.Utilities) {
+      DEBUG && I.start('Register dependency messages')
       // Watch individual files found via custom `@source` paths
       for (let file of this.scanner.files) {
         addWatchFile(file)
@@ -411,6 +412,7 @@ class Root {
           }
         }
       }
+      DEBUG && I.end('Register dependency messages')
     }
 
     DEBUG && I.start('Build CSS')