From 1a38278f2ae8c7dc6af1ba03c028eac8307c0190 Mon Sep 17 00:00:00 2001
From: Matthijs van der Burgh <MatthijsBurgh@outlook.com>
Date: Thu, 3 Feb 2022 12:04:14 +0100
Subject: [PATCH] (actions) check if build folder is up-to-date

---
 .github/workflows/npm.yml | 12 ++++++++++--
 1 file changed, 10 insertions(+), 2 deletions(-)

diff --git a/.github/workflows/npm.yml b/.github/workflows/npm.yml
index 4ba7aff9..713eed30 100644
--- a/.github/workflows/npm.yml
+++ b/.github/workflows/npm.yml
@@ -40,7 +40,15 @@ jobs:
       - name: Test
         run: |
           npm test --prefix ${{ matrix.package }}
-      - name: Success
+      - name: Build is up-to-date
         run: |
-          echo -e "\e[35m\e[1mThe build of '${{ matrix.package }}' has succeeded, please make sure that the 'build'/'dist' folder is up-to-date\e[0m"
+          echo -e "\e[1m\e[35mChecking the build folder(dist) is up-to-date with the library\e[0m"
+          changed_build_files=$(git -C "$(git rev-parse --show-toplevel)" diff --name-only HEAD -- ${{ matrix.package }}/dist)
+          if [ -n "$changed_build_files" ]
+          then
+              echo -e "\e[1m\e[31mBuild folder is out-of-sync with library. Build library, npm run build, and (ammend) commit\e[0m"
+              exit 1
+          else
+              echo -e "\e[1m\e[32mBuild folder is up-to-date with library\e[0m"
+          fi