fix SMAPI not working on macOS, improve installer validation

build/prepare-install-package.targets

@@ -38,8 +38,6 @@
     <Copy SourceFiles="$(TargetDir)\assets\README.txt" DestinationFolder="$(PackagePath)" />
     <Copy SourceFiles="$(TargetDir)\assets\windows-exe-config.xml" DestinationFiles="$(PackagePath)\internal\$(PlatformName)\install.exe.config" Condition="$(PlatformName) == 'windows'" />
     <Copy SourceFiles="$(TargetDir)\$(TargetName).dll" DestinationFolder="$(PackagePath)\internal\$(PlatformName)" />
-    <Copy SourceFiles="$(TargetDir)\$(TargetName).exe" DestinationFiles="$(PackagePath)\internal\$(PlatformName)\install.exe" Condition="$(PlatformName) == 'windows'" />
-    <Copy SourceFiles="$(TargetDir)\$(TargetName)" DestinationFiles="$(PackagePath)\internal\$(PlatformName)\install" Condition="$(PlatformName) != 'windows'" />
     <Copy SourceFiles="$(TargetDir)\$(TargetName).runtimeconfig.json" DestinationFolder="$(PackagePath)\internal\$(PlatformName)" />
 
     <!--copy bundle files-->

src/SMAPI.Installer/assets/unix-install.sh

@@ -3,8 +3,12 @@
 # Move to script's directory
 cd "`dirname "$0"`"
 
-# if $TERM is not set to xterm, mono will bail out when attempting to write to the console.
-export TERM=xterm
+# make sure .NET 5 is installed
+if ! command -v dotnet >/dev/null 2>&1; then
+    echo "Oops! You must have .NET 5 installed to use SMAPI: https://dotnet.microsoft.com/download";
+    read
+    exit 1
+fi
 
 # run installer
-./internal/unix/install
+dotnet internal/unix/SMAPI.Installer.dll

src/SMAPI.Installer/assets/unix-launcher.sh

@@ -10,7 +10,15 @@ if [ ! -f "Stardew Valley.dll" ]; then
     exit 1
 fi
 
+# make sure .NET 5 is installed
+if ! command -v dotnet >/dev/null 2>&1; then
+    echo "Oops! You must have .NET 5 installed to use SMAPI: https://dotnet.microsoft.com/download";
+    read
+    exit 1
+fi
+
 # macOS
+UNAME=$(uname)
 if [ "$UNAME" == "Darwin" ]; then
     # fix "DllNotFoundException: libgdiplus.dylib" errors when loading images in SMAPI
     if [ -f libgdiplus.dylib ]; then
@@ -20,8 +28,32 @@ if [ "$UNAME" == "Darwin" ]; then
         ln -s /Library/Frameworks/Mono.framework/Versions/Current/lib/libgdiplus.dylib libgdiplus.dylib
     fi
 
-    # launch smapi
-    open -a Terminal ./StardewModdingAPI "$@"
+    # Make sure we're running in Terminal (so the user can see errors/warnings/update alerts).
+    if [ ! -t 1 ]; then # https://stackoverflow.com/q/911168/262123
+        # sanity check to make sure we don't have an infinite loop of opening windows
+        SKIP_TERMINAL=false
+        for argument in "$@"; do
+            if [ "$argument" == "--no-reopen-terminal" ]; then
+                SKIP_TERMINAL=true
+                break
+            fi
+        done
+
+        # reopen in Terminal if needed
+        # https://stackoverflow.com/a/29511052/262123
+        if [ "$SKIP_TERMINAL" == "false" ]; then
+            echo "Reopening in the Terminal app..."
+            echo "\"$0\" $@ --no-reopen-terminal" > /tmp/open-smapi-terminal.sh
+            chmod +x /tmp/open-smapi-terminal.sh
+            cat /tmp/open-smapi-terminal.sh
+            open -W -a Terminal /tmp/open-smapi-terminal.sh
+            rm /tmp/open-smapi-terminal.sh
+            exit 0
+        fi
+    fi
+
+    # launch SMAPI
+    dotnet StardewModdingAPI.dll "$@"
 
 # Linux
 else

src/SMAPI.Installer/assets/windows-install.bat

@@ -1,8 +1,27 @@
 @echo off
+
+REM make sure we're not running within a zip folder
 echo "%~dp0" | findstr /C:"%TEMP%" 1>nul
-if not errorlevel 1 (
-   echo Oops! It looks like you're running the installer from inside a zip file. Make sure you unzip the download first.
+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."
     pause
-) else (
-   start /WAIT /B internal\windows\install.exe
+    exit
 )
+
+REM make sure .NET 5 is installed
+WHERE dotnet /q
+if %ERRORLEVEL% NEQ 0 (
+    echo "Oops! You must have .NET 5 (desktop x64) installed to use SMAPI: https://dotnet.microsoft.com/download/dotnet/5.0/runtime"
+    pause
+    exit
+)
+
+REM make sure an antivirus hasn't deleted the installer DLL
+if not exist internal\windows\SMAPI.Installer.dll (
+    echo "Oops! SMAPI can't find its 'internal\windows\SMAPI.Installer.dll' file. Your antivirus might have deleted the file."
+    pause
+    exit
+)
+
+REM start installer
+dotnet internal\windows\SMAPI.Installer.dll