From a351750bc94639d3636e4b9b219453b79a921cbf Mon Sep 17 00:00:00 2001
From: Joshua Robinson <jbrobin2@gmail.com>
Date: Wed, 23 Oct 2019 17:26:48 -0400
Subject: [PATCH] Add additional information for postcss errors (#6282) (#6352)

* Add additional information for postcss errors

* Add additional information for postcss errors (simplify)

* Remove chunkname from postCSS compile error

* Remove line number from postCSS compile error
---
 packages/react-scripts/scripts/build.js | 12 +++++++++++-
 1 file changed, 11 insertions(+), 1 deletion(-)

diff --git a/packages/react-scripts/scripts/build.js b/packages/react-scripts/scripts/build.js
index 5bbc874113..c989451dcf 100644
--- a/packages/react-scripts/scripts/build.js
+++ b/packages/react-scripts/scripts/build.js
@@ -168,8 +168,18 @@ function build(previousFileSizes) {
         if (!err.message) {
           return reject(err);
         }
+
+        let errMessage = err.message;
+
+        // Add additional information for postcss errors
+        if (err.hasOwnProperty('postcssNode')) {
+          errMessage +=
+            '\nCompileError: Begins at CSS selector ' +
+            err['postcssNode'].selector;
+        }
+
         messages = formatWebpackMessages({
-          errors: [err.message],
+          errors: [errMessage],
           warnings: [],
         });
       } else {