From f28b965add39d1f83e267e196fb098cdfce41ce3 Mon Sep 17 00:00:00 2001
From: Tim Neutkens <tim@timneutkens.nl>
Date: Mon, 16 Aug 2021 22:05:57 +0200
Subject: [PATCH] Add module type to build-module trace (#28128)

Add `-js` `-ts` `-tsx` `-css` to `build-module` in traces to allow for easier filtering.

## Bug

- [ ] Related issues linked using `fixes #number`
- [ ] Integration tests added
- [ ] Errors have helpful link attached, see `contributing.md`

## Feature

- [ ] Implements an existing feature request or RFC. Make sure the feature request has been accepted for implementation before opening a PR.
- [ ] Related issues linked using `fixes #number`
- [ ] Integration tests added
- [ ] Documentation added
- [ ] Telemetry added. In case of a feature if it's used or not.
- [ ] Errors have helpful link attached, see `contributing.md`

## Documentation / Examples

- [ ] Make sure the linting passes
---
 .../next/build/webpack/plugins/profiling-plugin.ts  | 13 ++++++++++++-
 1 file changed, 12 insertions(+), 1 deletion(-)

diff --git a/packages/next/build/webpack/plugins/profiling-plugin.ts b/packages/next/build/webpack/plugins/profiling-plugin.ts
index a091ec83a35153a..1e98defdef0392c 100644
--- a/packages/next/build/webpack/plugins/profiling-plugin.ts
+++ b/packages/next/build/webpack/plugins/profiling-plugin.ts
@@ -99,7 +99,18 @@ export class ProfilingPlugin {
           return
         }
 
-        const span = trace('build-module', compilerSpan.id)
+        const moduleType = (() => {
+          if (!module.userRequest) {
+            return ''
+          }
+
+          return module.userRequest.split('.').pop()
+        })()
+
+        const span = trace(
+          `build-module${moduleType ? `-${moduleType}` : ''}`,
+          compilerSpan.id
+        )
         span.setAttribute('name', module.userRequest)
         spans.set(module, span)
       })