Skip runtime install flag

KoreBuild-dotnet/build/KoreBuild.cmd

@@ -22,10 +22,16 @@ IF NOT EXIST xunit.core  (
     "%NUGET_PATH%" install xunit.core -ExcludeVersion -Source https://api.nuget.org/v3/index.json -o %~dp0
 )
 
+IF "%KOREBUILD_SKIP_RUNTIME_INSTALL%"=="1" (
+    ECHO Skipping runtime installation because KOREBUILD_SKIP_RUNTIME_INSTALL = 1
+    GOTO :SKIP_RUNTIME_INSTALL
+) 
+
 SET DOTNET_LOCAL_INSTALL_FOLDER=%LOCALAPPDATA%\Microsoft\dotnet\cli
 SET DOTNET_LOCAL_INSTALL_FOLDER_BIN=%DOTNET_LOCAL_INSTALL_FOLDER%\bin
 
 CALL %~dp0dotnet-install.cmd -version "1.0.0.000973"
+
 ECHO Adding %DOTNET_LOCAL_INSTALL_FOLDER_BIN% to PATH
 SET PATH=%DOTNET_LOCAL_INSTALL_FOLDER_BIN%;%PATH%
 ECHO Setting DOTNET_HOME to %DOTNET_LOCAL_INSTALL_FOLDER%
@@ -42,7 +48,9 @@ IF "%SKIP_DNX_INSTALL%"=="" (
     CALL %KOREBUILD_FOLDER%\build\dnvm use default -runtime CLR -arch x86		
 )		
 REM ============================
- 
+
+:SKIP_RUNTIME_INSTALL
+
 SET MAKEFILE_PATH=makefile.shade
 IF NOT EXIST %MAKEFILE_PATH% (
 	SET MAKEFILE_PATH=%KOREBUILD_FOLDER%\build\makefile.shade

KoreBuild-dotnet/build/KoreBuild.sh

@@ -46,25 +46,31 @@ fi
 if [ ! -d $thisDir/xunit.core ]; then
     mono $nugetPath install xunit.core -ExcludeVersion -o $thisDir -nocache -pre
 fi
-# Need to set this variable because by default the install script
-# requires sudo
-export DOTNET_INSTALL_DIR=~/.dotnet
-export PATH=~/.dotnet/bin:$PATH
-export DOTNET_HOME=DOTNET_INSTALL_DIR
-export KOREBUILD_FOLDER="$(dirname $thisDir)"
-chmod +x $thisDir/dotnet-install.sh
-$thisDir/dotnet-install.sh
-# ==== Temporary ====
-if ! type dnvm > /dev/null 2>&1; then
-    source $thisDir/dnvm.sh
+
+if [ ! -z "$KOREBUILD_SKIP_RUNTIME_INSTALL" ]; then
+    echo "Skipping runtime installation because KOREBUILD_SKIP_RUNTIME_INSTALL is set"
+else
+    # Need to set this variable because by default the install script
+    # requires sudo
+    export DOTNET_INSTALL_DIR=~/.dotnet
+    export PATH=~/.dotnet/bin:$PATH
+    export DOTNET_HOME=DOTNET_INSTALL_DIR
+    export KOREBUILD_FOLDER="$(dirname $thisDir)"
+    chmod +x $thisDir/dotnet-install.sh
+    $thisDir/dotnet-install.sh
+    # ==== Temporary ====
+    if ! type dnvm > /dev/null 2>&1; then
+        source $thisDir/dnvm.sh
+    fi
+        if ! type dnx > /dev/null 2>&1 || [ -z "$SKIP_DNX_INSTALL" ]; then
+            dnvm install latest -runtime coreclr -alias default
+            dnvm install default -runtime mono -alias default
+        else
+        dnvm use default -runtime mono
+    fi
+    # ============
 fi
-    if ! type dnx > /dev/null 2>&1 || [ -z "$SKIP_DNX_INSTALL" ]; then
-        dnvm install latest -runtime coreclr -alias default
-        dnvm install default -runtime mono -alias default
-    else
-    dnvm use default -runtime mono
-fi
-# ============
+
 # Probe for Mono Reference assemblies
 if [ -z "$DOTNET_REFERENCE_ASSEMBLIES_PATH" ]; then
     if [ $(uname) == Darwin ] && [ -d "/Library/Frameworks/Mono.framework/Versions/Current/lib/mono/xbuild-frameworks" ]; then