Support running Setup.csx on non-Windows (#1059)

* Support running Setup.csx on non-Windows

* Addressing PR issues with default shell and script

Author: WardenGnaw

tools/Setup.csx

@@ -40,7 +40,7 @@ class Setup {
 
     private void PrintHelp()
     {
-        Console.WriteLine("USAGE: dotnet script Setup.csx -- <Target-Path> [-vs|-vscode] [-debug|-release]");
+        Console.WriteLine("USAGE: Setup.[sh|cmd] -- <Target-Path> [-vs|-vscode] [-debug|-release]");
         Console.WriteLine("");
         Console.WriteLine("\t<Target-Path> is the path to the VS Code C/C++ Extension or root path of Visual Studio.");
         Console.WriteLine("\tFor Example:");
@@ -58,7 +58,7 @@ class Setup {
 
         foreach (string arg in args)
         {
-            if (arg.StartsWith("-") || arg.StartsWith("/"))
+            if (arg.StartsWith("-"))
             {
                 switch(arg.Substring(1).ToLower())
                 {
@@ -69,6 +69,10 @@ class Setup {
                         break;
                     case "vs":
                         Client = Client.VS;
+                        if (!RuntimeInformation.IsOSPlatform(OSPlatform.Windows))
+                        {
+                            throw new InvalidOperationException("Patching MIEngine with VS bits is not applicable for non-Windows Platforms.");
+                        }
                         break;
                     case "vscode":
                         Client = Client.VSCode;
@@ -182,7 +186,15 @@ class Setup {
         {
             if (Client == Client.VSCode)
             {
-                string vscodeExtensionPath = Environment.ExpandEnvironmentVariables("%USERPROFILE%\\.vscode\\extensions");
+                string vscodeExtensionPath = string.Empty;
+                if (RuntimeInformation.IsOSPlatform(OSPlatform.Windows))
+                {
+                    vscodeExtensionPath = Environment.ExpandEnvironmentVariables("%USERPROFILE%\\.vscode\\extensions");
+                }
+                else
+                {
+                    vscodeExtensionPath = Path.Join(Environment.GetEnvironmentVariable("HOME"), ".vscode/extensions");
+                }
                 IEnumerable<string> extensions = Directory.EnumerateDirectories(vscodeExtensionPath);
 
                 foreach (string extension in extensions)
@@ -237,18 +249,25 @@ class Setup {
             }
             string destPath = Path.Join(TargetPath, lff.InstallDir, lff.FileName);
 
+            // Normalize Paths for OS
+            if (RuntimeInformation.IsOSPlatform(OSPlatform.Windows))
+            {
+                srcPath = srcPath.Replace('/', '\\');
+                destPath = destPath.Replace('/', '\\');
+            }
+            else 
+            {
+                srcPath = srcPath.Replace('\\', '/');
+                destPath = destPath.Replace('\\', '/');
+            }
+
             Console.WriteLine(string.Format("Copying {0} to {1}.", srcPath, destPath));
 
             // TODO: Support symlinking
             File.Copy(srcPath, destPath, overwrite: true);
         }
     }
 
-} 
-
-if (!RuntimeInformation.IsOSPlatform(OSPlatform.Windows))
-{
-    throw new InvalidOperationException("This script is only supported for Windows.");
 }
 
 Setup setup = new Setup();

tools/Setup.sh

@@ -0,0 +1,18 @@
+#!/bin/bash
+
+if ! hash dotnet 2>/dev/null; then
+    echo "ERROR: The dotnet is not installed. see: https://dotnet.microsoft.com/download/dotnet-core"
+    exit 1
+fi
+
+if ! dotnet script -v &> /dev/null; then
+    echo "dotnet script needs to be installed. Run 'dotnet tool install -g dotnet-script'".
+    echo "More Information: https://github.com/filipw/dotnet-script#net-core-global-tool"
+    exit 1
+fi
+
+ScriptDir=$(dirname "$0")
+
+"$ScriptDir/Setup.csx" "${@:1}"
+
+exit 0