clupprich

begin
  require "bundler/inline"
rescue LoadError => e
  $stderr.puts "Bundler version 1.10 or later is required. Please update your Bundler"
  raise e
end

gemfile(true) do
  source "https://rubygems.org"

michalmuskala

Erlang/Elixir syntax reference

This reference is aimed at allowing you to comfortably read erlang documentation and consume terms printed in Erlang format. It does not aim at allowing you to write Erlang code.

This is a modified version of http://elixir-lang.org/crash-course.html

Data types

Erlang and Elixir have the same data types for the most part, but there are a number of differences.

tessi

Upgrade Postgresql from 9.2 to 9.6 on an uberspace

Uberspace (an awesome german web hoster) has superb postgresql support, except that it currently only offers postgresql versions 9.2.x and 9.3.x. I run postgresql 9.6.2 on my uberspace and documented steps for a migration to postgresql 9.6 here.

My goal was to be as close to the original uberspace-postgresql-setup as possible, but I had to copy and modify some uberspace scripts so they correctly use the new postgresql version.

Warning: Here be dragons. This is what I did -- that doesn't mean you should do the same or what I did was clever. Always backup your data and maybe test on a throw-away uberspace first. If you find things to improve, let me know and I'll try to keep this updated.

What I assume you have

kevinelliott

Mac OS X 10.10 Yosemite

Custom recipe to get OS X 10.10 Yosemite running from scratch, setup applications and developer environment. I use this gist to keep track of the important software and steps required to have a functioning system after a semi-annual fresh install. On average, I reinstall each computer from scratch every 6 months, and I do not perform upgrades between distros.

This keeps the system performing at top speeds, clean of trojans, spyware, and ensures that I maintain good organizational practices for my content and backups. I highly recommend this.

You are encouraged to fork this and modify it to your heart's content to match your own needs.

Install Software

wmorgan

 class Address
    def initialize address, display_name, domain
      @address = address
      @display_name = display_name
      @domain = domain
    end

    attr_reader :address, :display_name, :domain

    def self.from_header h # returns an Array of Addresses

jberkus

WITH table_scans as (
    SELECT relid,
        tables.idx_scan + tables.seq_scan as all_scans,
        ( tables.n_tup_ins + tables.n_tup_upd + tables.n_tup_del ) as writes,
                pg_relation_size(relid) as table_size
        FROM pg_stat_user_tables as tables
),
all_writes as (
    SELECT sum(writes) as total_writes
    FROM table_scans

crohr

Let's say you wanted to install this plugin: https://github.com/finnlabs/openproject-meeting. Here is how you would do it with the openproject version packaged at https://pkgr.io/apps/tessi/openproject:

cat >> /opt/openproject/Gemfile.plugins <<EOF
gem "openproject-plugins", :git => "https://github.com/opf/openproject-plugins.git", :branch => "stable"
gem "openproject-meeting", :git => "https://github.com/finnlabs/openproject-meeting.git", :branch => "stable"
EOF

inkmix

Jumping, Finding, ...

Keybinding	-	Description
Ctrl-1	-	Move to 1st tab (work every number)
Ctrl-p	-	Go to anything
Ctrl-g	-	Go to line
Ctrl-r	-	Go to symbol (e.g. section and labels)
Ctrl-m	-	Move to bracket

DonSchado

# assuming your subject is the UsersController with a method user_params

describe UsersController do
  describe "params" do
    # per default the matcher extracts the subject and params method
    it { should permit_params(:email, :name, :role) }
    
    # to overwrite the params method use explicit .params_method()
    it { should permit_params(:first_name, :last_name).params_method(:other_user_params) }
    

gabetax

https://twitter.com/garybernhardt/status/349920138889404416

[1] pry(main)> class Object; alias_method :&, :method; end
=> Object

With standard symbol to proc, &:foo evaluates to:

{ |x| x.foo }

With the "pretzel bun", &foo&:bar evaluates to: