made an unique compilation step

README.md

@@ -6,7 +6,27 @@ This is a stack project which implement this example Transient project:
 
 ## Usage
 
+### Fastest
+
+Just open a terminal and write all these commands.
+If this is the first time you use Haskell it will take a lot of time.
+Don't worry, once installed, calling `compile.sh` will be fast the next time.
+
+~~~
+git clone http://github.com/yogsototh/transient-example
+cd transient-example
+./compile.sh
+./start.sh
+~~~
+
+### Manually
+
 1. Install [`stack`](haskellstack.org)
+   
+   ~~~
+   curl -sSL https://get.haskellstack.org/ | sh
+   ~~~
+
 2. Install ghc and ghcjs with stack.
    If you never installed ghcjs that could take a _lot_ of time.
    

compile.sh

@@ -0,0 +1,20 @@
+#!/usr/bin/env bash
+
+if command -v stack >/dev/null 2>&1
+then echo "stack already installed."
+else
+    echo "stack is not installed. I will try to install it."
+    curl -sSL https://get.haskellstack.org/ | sh
+fi
+
+# Downloading Haskell Compiler this can be very long
+stack setup
+stack --stack-yaml stack-ghcjs.yaml setup
+
+# Building the project the first time it will also download and compile
+# library
+stack build
+stack --stack-yaml stack-ghcjs.yaml build
+
+# Link GHCJS result to the correct directory (static/out.jsexe)
+./mklink.sh