Add API generation script

Author: sagmor

Gemfile

@@ -5,4 +5,9 @@ gem 'github-pages'
 group :scripts do 
   gem 'mgem' 
   gem 'git' 
+
+  # API Docs
+  gem 'yard-mruby'
+  gem 'yard-coderay'
 end
+

Gemfile.lock

@@ -5,6 +5,7 @@ GEM
     blankslate (2.1.2.4)
     classifier (1.3.4)
       fast-stemmer (>= 1.0.0)
+    coderay (1.1.0)
     colorator (0.1)
     commander (4.1.5)
       highline (~> 1.6.11)
@@ -56,6 +57,12 @@ GEM
     toml (0.1.0)
       parslet (~> 1.5.0)
     yajl-ruby (1.1.0)
+    yard (0.8.7.6)
+    yard-coderay (0.1.0)
+      coderay
+      yard
+    yard-mruby (0.2.0)
+      yard
 
 PLATFORMS
   ruby
@@ -64,3 +71,8 @@ DEPENDENCIES
   git
   github-pages
   mgem
+  yard-coderay
+  yard-mruby
+
+BUNDLED WITH
+   1.10.6

gen/api

@@ -0,0 +1,23 @@
+#!/bin/bash
+
+set -euo pipefail
+IFS=$'\n\t'
+
+if [ -d "mruby" ]; then
+	pushd mruby
+	# Fetch updated sources
+	git pull
+	popd
+else
+	# Clone a fresh mruby repo
+	git clone https://github.com/mruby/mruby.git
+fi
+
+# Clean old docs
+rm -rf docs/api
+
+# Generate docs
+pushd mruby
+bundle exec mrbdoc -o ../docs/api
+popd
+touch docs/api/.nojekyll