Add build script and windows installer

.gitignore

@@ -3,4 +3,5 @@
 .project
 .settings/org.eclipse.jdt.core.prefs
 *.jar
-.all-contributorsrc
+.all-contributorsrc
+dist/bin/

Cli.java

@@ -11,7 +11,7 @@
  *          languages like JavaScript, C++ or Python.
  */
 public class Cli {
-	private static final String VERSION = "2.1.0";
+	private static final String VERSION = "2.2.0";
 	private static final String DESCRIPTION = "A command line interface tool for the RustScript language.";
 	private static final String COPYRIGHT = "Copyright (c) 2021 William Rågstad";
 	private static final String HELP = String.format("""

README.md

@@ -26,21 +26,25 @@
 
 ### 🔌Run
 
-See CLI user manual/help by running `rsc` with the `--help` or `-h` options.
-Run a script using the following command.
+> Don't forget to download the latest version from above, and install the RustScript toolchain as described in the `README.md` installation instructions file that comes pre-packaged.
+
+Run the `rsc` command with either the `--help` or `-h` option to show the user manual or help page for the CLI tool.
+Execute scripts using the following command.
 
 ```shell
-java -jar rsc.jar <script>
+rsc hello.rs world.rs
 ```
 
-### 🔨 Build
-
-If you want to build RustScript on your own, run the command below to build the `Runner.java` class into a standalone executable.
+Or if you haven't installed the native CLI binaries, run the `rsc.jar` file using:
 
 ```shell
-jar -cvmf manifest.txt rsc.jar *.class core/*.class
+java -jar rsc.jar hello.rs
 ```
 
+### 🔨 Build
+
+If you want to build RustScript on your own. Install the **WiX Toolset** (`dist/tools/wix311.exe`) and run the `build` command from the root directory to build the `Cli.java` class into the standalone executables to `dist/bin/`.
+
 ---
 
 ## Examples

build.bat

@@ -0,0 +1,19 @@
+@echo off
+REM Build the RustScript CLI
+echo Have you updated the VERSION constant in Cli.java?
+set /p version=Version: 
+@echo on
+rmdir dist\bin /S /Q
+mkdir dist\bin
+javac *.java core/*.java core/formatting/*.java
+jar -cvmf manifest.txt dist\bin\rsc.jar *.class core/*.class core/formatting/*.class
+cd dist\bin
+echo Building native binary...
+jpackage --name rsc --input . --main-jar rsc.jar --main-class Cli --type msi --vendor "William Rågstad" --description "The RustScript CLI tool" --app-version %version% --icon ../icon.ico --file-associations ../assoc.properties --win-console
+copy ..\README.md .
+
+@echo off
+cd ..\..
+echo.
+echo Done!
+pause

dist/README.md

@@ -0,0 +1,34 @@
+# RustScript CLI (rsc)
+Hello and welcome!
+Thanks for installing the RustScript CLI toolchain.
+
+## Usage
+
+Install the CLI tool to path as shown in a chapter below. Then run:
+
+```shell
+rsc
+```
+
+This should work from anywhere.
+
+[Read more](https://github.com/WilliamRagstad/RustScript). 
+
+## Pre-packaged
+The `.msi` installer alreay adds file associations for RustScript files, hence you can double click them
+to execute them directly in explorer!
+
+## Install to PATH
+Only follow these installation steps if you have installed RustScript in `C:\Program Files\rsc`!
+
+* Search for `env` in windows and open edit environment variables
+* Click on the environment variables button
+* Scroll down in the upper (or lower) variable list until you find PATH
+* Click edit
+* Make sure the current PATH ends with a `;`
+* Paste in `C:\Program Files\rsc;`
+* OK
+* Done!
+
+You should now be able to open up a new console window and type in the command `rsc` to access
+the RustScript CLI from anywhere!

dist/assoc.properties

@@ -0,0 +1,4 @@
+extension=rs
+mime-type=application/rustscript
+icon=../file.ico
+description=RustScript Executable Script File