building pipeline

tools/tgs4_scripts/PreCompile.bat

@@ -0,0 +1,15 @@
+@echo off
+cd /D "%~dp0"
+set TG_BOOTSTRAP_CACHE=%cd%
+IF NOT "%1" == "" (
+	rem TGS4: we are passed the game directory on the command line
+	cd %1
+) ELSE IF EXIST "..\Game\B\tgstation.dmb" (
+	rem TGS3: Game/B/tgstation.dmb exists, so build in Game/A
+	cd ..\Game\A
+) ELSE (
+	rem TGS3: Otherwise build in Game/B
+	cd ..\Game\B
+)
+set TG_BUILD_TGS_MODE=1
+tools\build\build