Add ARM64 Windows tool option

Since Node.js is expected to support ARM64 Windows natively soon, this
change adds an option to the module, '--include-arm64-tools', to
install the extra Visual Studio 2017 bits required to build native
modules for it.

README.md

@@ -53,6 +53,7 @@ Optional arguments:
 * `--silent`: The script will not output any information.
 * `--vs2015`: Install the Visual Studio 2015 Build Tools instead of the Visual Studio 2017 ones.
 * `--dry-run-only`: Don't actually do anything, just print what the script would have done.
+* `--include-arm64-tools`: Include the optional Visual Studio components required to build binaries for ARM64 Windows. Only available with the 2017 and newer build tools and Node.js v12 and up.
 
 ## Supplying Parameters to the VCC Build Tools
 

src/utils/get-build-tools-parameters.ts

@@ -1,3 +1,5 @@
+import { BUILD_TOOLS } from '../constants';
+
 const debug = require('debug')('windows-build-tools');
 
 export function getBuildToolsExtraParameters() {
@@ -16,5 +18,9 @@ export function getBuildToolsExtraParameters() {
     }
   }
 
+  if (!!process.env.npm_config_include_arm64_tools && BUILD_TOOLS.version === 2017) {
+    extraArgs += ' --add Microsoft.VisualStudio.Component.VC.Tools.ARM64 --add Microsoft.VisualStudio.Component.VC.ATL.ARM64';
+  }
+
   return extraArgs;
 }