From d45477f79c2809ec9a1269a435dcbb0746e6f39b Mon Sep 17 00:00:00 2001
From: Jordan Brown <Cyberboss@users.noreply.github.com>
Date: Tue, 2 Feb 2021 05:29:47 -0500
Subject: [PATCH] Use a dummy include to indicate TGUI isn't built (#56470)

---
 .gitignore                | 1 +
 code/modules/tgui/tgui.dm | 5 +++++
 tgui/bin/tgui             | 3 +++
 tgui/bin/tgui_.ps1        | 1 +
 tools/build/build.js      | 1 +
 5 files changed, 11 insertions(+)

diff --git a/.gitignore b/.gitignore
index dd20fecd22c..e0653e57596 100644
--- a/.gitignore
+++ b/.gitignore
@@ -234,3 +234,4 @@ tools/LinuxOneShot/TGS_Logs
 
 # Common build tooling
 !/tools/build
+code/modules/tgui/USE_BUILD_BAT_INSTEAD_OF_DREAM_MAKER.dm
diff --git a/code/modules/tgui/tgui.dm b/code/modules/tgui/tgui.dm
index b99783f67ad..cecb8e1ae2c 100644
--- a/code/modules/tgui/tgui.dm
+++ b/code/modules/tgui/tgui.dm
@@ -3,6 +3,11 @@
  * SPDX-License-Identifier: MIT
  */
 
+#ifndef SPACEMAN_DMM
+// Empty file generated by tgui build. Makes the problem clearer if it hasn't been built.
+#include "USE_BUILD_BAT_INSTEAD_OF_DREAM_MAKER.dm"
+#endif
+
 /**
  * tgui datum (represents a UI).
  */
diff --git a/tgui/bin/tgui b/tgui/bin/tgui
index d2f91e3f783..5584abe4d5d 100755
--- a/tgui/bin/tgui
+++ b/tgui/bin/tgui
@@ -54,6 +54,7 @@ task-install() {
 task-webpack() {
   cd "${base_dir}"
   yarn run webpack-cli "${@}"
+  touch "../code/modules/tgui/USE_BUILD_BAT_INSTEAD_OF_DREAM_MAKER.dm"
 }
 
 ## Runs a development server
@@ -88,6 +89,8 @@ task-clean() {
   ## NPM artifacts
   rm -rf **/node_modules
   rm -f **/package-lock.json
+  ## Dummy DM
+  rm -f ../code/modules/tgui/USE_BUILD_BAT_INSTEAD_OF_DREAM_MAKER.dm
 }
 
 ## Installs merge drivers and git hooks
diff --git a/tgui/bin/tgui_.ps1 b/tgui/bin/tgui_.ps1
index 2c337bfe95c..ba6b4d8ce60 100644
--- a/tgui/bin/tgui_.ps1
+++ b/tgui/bin/tgui_.ps1
@@ -43,6 +43,7 @@ function task-install {
 ## Runs webpack
 function task-webpack {
   yarn run webpack-cli @Args
+  New-Item -ItemType file "../code/modules/tgui/USE_BUILD_BAT_INSTEAD_OF_DREAM_MAKER.dm"
 }
 
 ## Runs a development server
diff --git a/tools/build/build.js b/tools/build/build.js
index e1d078bec9d..b7ef585c4c6 100755
--- a/tools/build/build.js
+++ b/tools/build/build.js
@@ -26,6 +26,7 @@ const taskTgui = new Task('tgui')
   .provides('tgui/public/tgui-common.bundle.js')
   .provides('tgui/public/tgui-panel.bundle.css')
   .provides('tgui/public/tgui-panel.bundle.js')
+  .provides('code/modules/tgui/USE_BUILD_BAT_INSTEAD_OF_DREAM_MAKER.dm')
   .build(async () => {
     // Instead of calling `tgui/bin/tgui`, we reproduce the whole pipeline
     // here for maximum compilation speed.