timvisee

Falsehoods programmers believe about time

This is a compiled list of falsehoods programmers tend to believe about working with time.

Don't re-invent a date time library yourself. If you think you understand everything about time, you're probably doing it wrong.

Falsehoods

• There are always 24 hours in a day.
• February is always 28 days long.
• Any 24-hour period will always begin and end in the same day (or week, or month).

petrblaho

virsh list  | grep running | awk '{print $2}' | xargs -n1 -I{} sh -c "echo {}; virsh domifaddr {} --full | grep ip; echo '---'"

janko

require "open-uri"
require "net/http"

Error = Class.new(StandardError)

DOWNLOAD_ERRORS = [
  SocketError,
  OpenURI::HTTPError,
  RuntimeError,
  URI::InvalidURIError,

thescouser89

--- ext/openssl/ossl_pkey_ec.c
+++ ext/openssl/ossl_pkey_ec.c
@@ -757,8 +757,10 @@ static VALUE ossl_ec_group_initialize(int argc, VALUE *argv, VALUE self)
                 method = EC_GFp_mont_method();
             } else if (id == s_GFp_nist) {
                 method = EC_GFp_nist_method();
+#if !defined(OPENSSl_NO_EC2M)
             } else if (id == s_GF2m_simple) {
                 method = EC_GF2m_simple_method();
+#endif

gnarf

Install

Either copy the aliases from the .gitconfig or run the commands in add-pr-alias.sh

Usage

Easily checkout local copies of pull requests from remotes:

• git pr 4 - creates local branch pr/4 from the github upstream(if it exists) or origin remote and checks it out
• git pr 4 someremote - creates local branch pr/4 from someremote remote and checks it out

nusco

# =======================
# Spell: Singleton Method
# =======================

# Define a method on a single object.

obj = "abc"

class << obj
  def my_singleton_method

nusco

# ======================
# Spell: Class Extension
# ======================

# Define class methods by mixing a module into a class’s singleton class
# (a special case of Object Extension - http://gist.github.com/534667).

class C; end

module M

matthewtodd

require 'heroku'
require 'taps/operation'

class Database
  def self.pull(*args)
    new.pull(*args)
  end

  def initialize(uri=ENV['DATABASE_URL'])
    @uri = uri

softcraft-development

# Goal: Allow addition of instances to a collection in a factory-built object
# when those instances require references to the parent.
# Typically occurs in Rails when one model has_many instances of another

# See more at:
# http://stackoverflow.com/questions/2937326/populating-an-association-with-children-in-factory-girl

class Factory
  def has_many(collection)
    # after_build is where you add instances to the factory-built collection. 

tpope

inoremap <silent> <Bar>   <Bar><Esc>:call <SID>align()<CR>a

function! s:align()
  let p = '^\s*|\s.*\s|\s*$'
  if exists(':Tabularize') && getline('.') =~# '^\s*|' && (getline(line('.')-1) =~# p || getline(line('.')+1) =~# p)
    let column = strlen(substitute(getline('.')[0:col('.')],'[^|]','','g'))
    let position = strlen(matchstr(getline('.')[0:col('.')],'.*|\s*\zs.*'))
    Tabularize/|/l1
    normal! 0
    call search(repeat('[^|]*|',column).'\s\{-\}'.repeat('.',position),'ce',line('.'))