Update the build scripts

build.cmd

@@ -1,39 +1,2 @@
-@ECHO off
-SETLOCAL
-
-SET REPO_FOLDER=%~dp0
-CD "%REPO_FOLDER%"
-
-SET BUILD_FOLDER=.build
-SET KOREBUILD_FOLDER=%BUILD_FOLDER%\KoreBuild-dotnet
-SET KOREBUILD_VERSION=
-
-SET NUGET_PATH=%BUILD_FOLDER%\NuGet.exe
-SET NUGET_VERSION=latest
-SET CACHED_NUGET=%LocalAppData%\NuGet\nuget.%NUGET_VERSION%.exe
-
-IF NOT EXIST %BUILD_FOLDER% (
-    md %BUILD_FOLDER%
-)
-
-IF NOT EXIST %NUGET_PATH% (
-    IF NOT EXIST %CACHED_NUGET% (
-        echo Downloading latest version of NuGet.exe...
-        IF NOT EXIST %LocalAppData%\NuGet ( 
-            md %LocalAppData%\NuGet
-        )
-        @powershell -NoProfile -ExecutionPolicy unrestricted -Command "$ProgressPreference = 'SilentlyContinue'; Invoke-WebRequest 'https://dist.nuget.org/win-x86-commandline/%NUGET_VERSION%/nuget.exe' -OutFile '%CACHED_NUGET%'"
-    )
-
-    copy %CACHED_NUGET% %NUGET_PATH% > nul
-)
-
-SET KOREBUILD_DOWNLOAD_ARGS=
-IF NOT "%KOREBUILD_VERSION%"=="" (
-    SET KOREBUILD_DOWNLOAD_ARGS=-version %KOREBUILD_VERSION%
-)
-IF NOT EXIST %KOREBUILD_FOLDER% (
-    %BUILD_FOLDER%\nuget.exe install KoreBuild-dotnet -ExcludeVersion -o %BUILD_FOLDER% -nocache -pre %KOREBUILD_DOWNLOAD_ARGS%
-)
-
-"%KOREBUILD_FOLDER%\build\KoreBuild.cmd" %*
+@ECHO OFF
+PowerShell -NoProfile -NoLogo -ExecutionPolicy unrestricted -Command "[System.Threading.Thread]::CurrentThread.CurrentCulture = ''; [System.Threading.Thread]::CurrentThread.CurrentUICulture = '';& '%~dp0build.ps1' %*"

build.ps1

@@ -0,0 +1,36 @@
+cd $PSScriptRoot
+
+$repoFolder = $PSScriptRoot
+$env:REPO_FOLDER = $repoFolder
+
+$koreBuildZip="https://github.com/aspnet/KoreBuild/archive/dev.zip"
+if ($env:KOREBUILD_ZIP)
+{
+    $koreBuildZip=$env:KOREBUILD_ZIP
+}
+
+$buildFolder = ".build"
+$buildFile="$buildFolder\KoreBuild.ps1"
+
+if (!(Test-Path $buildFolder)) {
+    Write-Host "Downloading KoreBuild from $koreBuildZip"    
+    
+    $tempFolder=$env:TEMP + "\KoreBuild-" + [guid]::NewGuid()
+    New-Item -Path "$tempFolder" -Type directory | Out-Null
+
+    $localZipFile="$tempFolder\korebuild.zip"
+    
+    Invoke-WebRequest $koreBuildZip -OutFile $localZipFile
+    Add-Type -AssemblyName System.IO.Compression.FileSystem
+    [System.IO.Compression.ZipFile]::ExtractToDirectory($localZipFile, $tempFolder)
+    
+    New-Item -Path "$buildFolder" -Type directory | Out-Null
+    copy-item "$tempFolder\**\build\*" $buildFolder -Recurse
+
+    # Cleanup
+    if (Test-Path $tempFolder) {
+        Remove-Item -Recurse -Force $tempFolder
+    }
+}
+
+&"$buildFile" $args

build.sh

@@ -0,0 +1,35 @@
+#!/usr/bin/env bash
+repoFolder="$( cd "$( dirname "${BASH_SOURCE[0]}" )" && pwd )"
+cd $repoFolder
+
+koreBuildZip="https://github.com/aspnet/KoreBuild/archive/dev.zip"
+if [ ! -z $KOREBUILD_ZIP ]; then
+    koreBuildZip=$KOREBUILD_ZIP
+fi
+
+buildFolder=".build"
+buildFile="$buildFolder/KoreBuild.sh"
+
+if test ! -d $buildFolder; then
+    echo "Downloading KoreBuild from $koreBuildZip"
+    
+    tempFolder="/tmp/KoreBuild-$(uuidgen)"    
+    mkdir $tempFolder
+    
+    localZipFile="$tempFolder/korebuild.zip"
+    
+    wget -O $localZipFile $koreBuildZip 2>/dev/null || curl -o $localZipFile --location $koreBuildZip /dev/null
+    unzip -q -d $tempFolder $localZipFile
+  
+    mkdir $buildFolder
+    cp -r $tempFolder/**/build/** $buildFolder
+    
+    chmod +x $buildFile
+    
+    # Cleanup
+    if test ! -d $tempFolder; then
+        rm -rf $tempFolder  
+    fi
+fi
+
+$buildFile -r $repoFolder "$@"