make installer self-contained

This lets players run the installer without manually installing .NET 5, which was causing a lot of support requests.

1 files changed, 41 insertions, 0 deletions

diff --git a/src/SMAPI.Installer/assets/install on Windows.bat b/src/SMAPI.Installer/assets/install on Windows.bat
new file mode 100644
index 00000000..b0d9ae81
--- /dev/null
+++ b/src/SMAPI.Installer/assets/install on Windows.bat
@@ -0,0 +1,41 @@
+@echo off
+setlocal enabledelayedexpansion
+
+SET installerDir="%~dp0"
+
+REM make sure we're not running within a zip folder
+echo %installerDir% | findstr /C:"%TEMP%" 1>nul
+if %ERRORLEVEL% EQU 0 (
+    echo Oops! It looks like you're running the installer from inside a zip file. Make sure you unzip the download first.
+    echo.
+    pause
+    exit
+)
+
+REM make sure an antivirus hasn't deleted the installer DLL
+if not exist %installerDir%"internal\windows\SMAPI.Installer.dll" (
+    echo Oops! SMAPI is missing one of its files. Your antivirus might have deleted it.
+    echo Missing file: %installerDir%internal\windows\SMAPI.Installer.dll
+    echo.
+    pause
+    exit
+)
+if not exist %installerDir%"internal\windows\SMAPI.Installer.exe" (
+    echo Oops! SMAPI is missing one of its files. Your antivirus might have deleted it.
+    echo Missing file: %installerDir%internal\windows\SMAPI.Installer.exe
+    echo.
+    pause
+    exit
+)
+
+REM start installer
+internal\windows\SMAPI.Installer.exe
+
+REM keep window open if it failed
+if %ERRORLEVEL% NEQ 0 (
+    echo.
+    echo Oops! The SMAPI installer seems to have failed. The error details may be shown above.
+    echo.
+    pause
+    exit
+)