Robert Pearce rpearce

Learn Go in ~5mins

Your first Go program as a classical "Hello World" is pretty simple:

First we create a workspace for our project:

The easiest way to get the ClamAV package is using Homebrew

$ brew install clamav

Before trying to start the clamd daemon, you'll need a copy of the ClamAV databases.

Inside /your/location/to/brew/etc/clamav, you'll see 2 files:

If you prefer to watch video tutorials with live-coding, then check out this series I recorded with the same contents as in this article: Egghead.io - Introduction to Reactive Programming.

You probably don't want Google crawling your development staging app. Here's how to fix that.

$ mv public/robots.txt config/robots.production.txt
$ cp config/robots.production.txt config/robots.development.txt

Now edit config/routes.rb to add a route for /robots.txt, and add the controller code.

	:def hoogle \x -> return $ ":!hoogle --count=15 \"" ++ x ++ "\""
	:def doc \x -> return $ ":!hoogle --info \"" ++ x ++ "\""
	:set -Wall
	:set -fno-warn-type-defaults -ferror-spans -freverse-errors -fprint-expanded-synonyms
	:set prompt "\ESC[0;32m%s\n\ESC[m[ghci]\ESC[38;5;172mλ \ESC[m"
	:set prompt-cont " \ESC[38;5;172m> \ESC[m"

	import css from "rollup-plugin-css-porter";
	import pkg from "../../package.json";
	import resolve from "rollup-plugin-node-resolve";
	import babel from "rollup-plugin-babel";
	import path from "path";
	import commonjs from "rollup-plugin-commonjs";
	import { terser } from "rollup-plugin-terser";

	process.env.BABEL_ENV = "production";
	process.env.NODE_ENV = "production";

	class PolicyTest < ActiveSupport::TestCase
	def assert_permissions(current_user, record, available_actions, permissions_hash = {})
	permissions_hash.each do \|action, should_be_permitted\|
	if should_be_permitted
	assert_permit current_user, record, action
	else
	refute_permit current_user, record, action
	end
	end