tools: add Boxstarter script

Adds a Boxstarter script for easy Node.js building prerequisites installation

PR-URL: https://github.com/nodejs/node/pull/17046
Reviewed-By: Benjamin Gruenbaum <benjamingr@gmail.com>
Reviewed-By: Refael Ackermann <refack@gmail.com>
Reviewed-By: João Reis <reis@janeasystems.com>
Reviewed-By: Gibson Fahnestock <gibfahn@gmail.com>

BUILDING.md

@@ -89,6 +89,9 @@ Depending on host platform, the selection of toolchains may vary.
 
 ## Building Node.js on supported platforms
 
+*Note:* All prerequisites can be easily installed by following
+[this bootstrapping guide](https://github.com/nodejs/node/blob/master/tools/bootstrap/README.md).
+
 ### Unix / macOS
 
 Prerequisites:

tools/bootstrap/README.md

@@ -0,0 +1,55 @@
+# Node.js Bootstrapping Guide
+
+## Windows
+
+A [Boxstarter][] script can be used for easy setup of Windows systems with all
+the required prerequisites for Node.js development. This script will install
+the following [Chocolatey] packages:
+  * [Git for Windows][] with the `git` and Unix tools added to the `PATH`
+  * [Python 2.x][]
+  * [Visual Studio 2017 Build Tools][] with [Visual C++ workload][]
+
+To install Node.js prerequisites using [Boxstarter WebLauncher][], just open
+[this link](http://boxstarter.org/package/nr/url?https://raw.githubusercontent.com/nodejs/node/master/tools/bootstrap/windows_boxstarter)
+with Internet Explorer or Edge browser on the target machine.
+
+Alternatively, you can use PowerShell. Run those commands from an elevated
+PowerShell terminal:
+```console
+Set-ExecutionPolicy Unrestricted -Force
+iex ((New-Object System.Net.WebClient).DownloadString('http://boxstarter.org/bootstrapper.ps1'))
+get-boxstarter -Force
+Install-BoxstarterPackage https://raw.githubusercontent.com/nodejs/node/master/tools/bootstrap/windows_boxstarter -DisableReboots
+```
+
+Entire installation will take up about 8 GB of disk space.
+
+## Linux
+
+For building Node.js on Linux, following packages are required (note, that this
+can vary from distribution to distribution):
+  * `git`
+  * `python`
+  * `gcc-c++` or `g++`
+  * `make`
+
+To bootstrap Node.js on Linux, run in terminal:
+  * OpenSUSE: `sudo zypper install git python gcc-c++ make`
+  * Fedora: `sudo dnf install git python gcc-c++ make`
+  * Ubuntu, Debian: `sudo apt-get install git python g++ make`
+
+## macOS
+
+To install required tools on macOS, run in terminal:
+```console
+xcode-select --install
+```
+
+[Boxstarter]: http://boxstarter.org/
+[Boxstarter WebLauncher]: http://boxstarter.org/WebLauncher
+[Chocolatey]: https://chocolatey.org/
+[Git for Windows]: https://chocolatey.org/packages/git
+[Python 2.x]: https://chocolatey.org/packages/python2
+[Visual Studio 2017 Build Tools]: https://chocolatey.org/packages/visualstudio2017buildtools
+[Visual C++ workload]: https://chocolatey.org/packages/visualstudio2017-workload-vctools
+

tools/bootstrap/windows_boxstarter

@@ -0,0 +1,21 @@
+# Boxstarter (http://boxstarter.org/) script for Node.js prerequisites
+#
+# To install either open this link in IE or Edge:
+#  http://boxstarter.org/package/nr/url?https://raw.githubusercontent.com/nodejs/node/master/tools/bootstrap/windows_boxstarter
+#
+# Or run those commands in an elevated Powershell terminal:
+#  iex ((New-Object System.Net.WebClient).DownloadString('http://boxstarter.org/bootstrapper.ps1'))
+#  get-boxstarter -Force
+#  Install-BoxstarterPackage https://raw.githubusercontent.com/nodejs/node/master/tools/bootstrap/windows_boxstarter -DisableReboots
+#
+# For more detail see
+# https://github.com/nodejs/node/blob/master/tools/bootstrap/README.md
+#
+
+# Git and Unix tools will be added to the PATH
+choco install git -params /GitAndUnixToolsOnPath -y
+choco install python2 -y
+
+# Installs VS 2017 Build Tools
+choco install visualstudio2017buildtools -y
+choco install visualstudio2017-workload-vctools -y