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@sjoerdvisscher
sjoerdvisscher / laws.hs
Last active July 24, 2018 08:16
First class checkable laws using the free-functors package
{-# LANGUAGE
TypeFamilies
, KindSignatures
, ScopedTypeVariables
, ConstraintKinds
, FlexibleInstances
, FlexibleContexts
, DeriveGeneric
, DeriveAnyClass
, TypeApplications
#!/usr/bin/env bash
# depends: dmenu slop xdotool
# assumes next spawned window will be floating/moveable by xdotool.
# get program name to launch using dmenu cache:
cachedir=${XDG_CACHE_HOME:-"$HOME/.cache"}
if [ -d "$cachedir" ]; then
cache=$cachedir/dmenu_run
else
cache=$HOME/.dmenu_cache # if no xdg dir, fall back to dotfile in ~
@staltz
staltz / introrx.md
Last active April 21, 2025 04:15
The introduction to Reactive Programming you've been missing
@terryjray
terryjray / gist:3296171
Created August 8, 2012 15:55
Enabling hstore for new postgresql 9.1 and rails 3 install on ubuntu 12.04
RAILS_ENV=production rake db:setup
# produces the error below.....hmmm.....it's a no-worky
psql:/yourprojectpath/yourproject/db/structure.sql:29: ERROR: could not open extension control file "/usr/share/postgresql/9.1/extension/hstore.control": No such file or directory
# hstore postgresql extension needs to be installed, so....
sudo apt-get install postgresql-contrib
# now your extension should be available to enable so log in with psql
psql -d yourproject_production -U yourdbuser -W
@sontek
sontek / snowjob.sh
Last active August 9, 2024 13:14
Make your terminal snow
#!/bin/bash
LINES=$(tput lines)
COLUMNS=$(tput cols)
declare -A snowflakes
declare -A lastflakes
clear
validates :tag_id, :uniqueness => {:scope => :post_id}
@isaacs
isaacs / node-and-npm-in-30-seconds.sh
Last active April 14, 2025 11:07
Use one of these techniques to install node and npm without having to sudo. Discussed in more detail at http://joyeur.com/2010/12/10/installing-node-and-npm/ Note: npm >=0.3 is *safer* when using sudo.
echo 'export PATH=$HOME/local/bin:$PATH' >> ~/.bashrc
. ~/.bashrc
mkdir ~/local
mkdir ~/node-latest-install
cd ~/node-latest-install
curl http://nodejs.org/dist/node-latest.tar.gz | tar xz --strip-components=1
./configure --prefix=~/local
make install # ok, fine, this step probably takes more than 30 seconds...
curl https://www.npmjs.org/install.sh | sh