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@iangreenleaf
iangreenleaf / yaml.vim
Created March 15, 2011 17:38
Dumb-smart indentation for Yaml
" Vim indent file
" Language: Yaml
" Author: Ian Young
" Get it bundled for pathogen: https://github.com/avakhov/vim-yaml
if exists("b:did_indent")
finish
endif
"runtime! indent/ruby.vim
"unlet! b:did_indent
@lpar
lpar / timeout.rb
Created June 17, 2011 20:41
Run a shell command in a separate thread, terminate it after a time limit, return its output
# Runs a specified shell command in a separate thread.
# If it exceeds the given timeout in seconds, kills it.
# Returns any output produced by the command (stdout or stderr) as a String.
# Uses Kernel.select to wait up to the tick length (in seconds) between
# checks on the command's status
#
# If you've got a cleaner way of doing this, I'd be interested to see it.
# If you think you can do it with Ruby's Timeout module, think again.
def run_with_timeout(command, timeout, tick)
output = ''
@xaviershay
xaviershay / http_client_spec.rb
Created December 13, 2011 02:19
Running a rack app in a thread for integration tests.
require 'integration_helper'
require 'rack'
require 'rack/handler/webrick'
describe HttpClient do
before :all do
@server = WEBrick::HTTPServer.new(
:Port => 9293,
:Logger => Rails.logger,
:AccessLog => Rails.logger
@rkh
rkh / chat.rb
Created December 14, 2011 12:55
Simple Chat Application using the Sinatra Streaming API
# coding: utf-8
require 'sinatra'
set server: 'thin', connections: []
get '/' do
halt erb(:login) unless params[:user]
erb :chat, locals: { user: params[:user].gsub(/\W/, '') }
end
get '/stream', provides: 'text/event-stream' do
@jimbojsb
jimbojsb / gist:1630790
Created January 18, 2012 03:52
Code highlighting for Keynote presentations

Step 0:

Get Homebrew installed on your mac if you don't already have it

Step 1:

Install highlight. "brew install highlight". (This brings down Lua and Boost as well)

Step 2:

tmux cheatsheet

As configured in my dotfiles.

start new:

tmux

start new with session name:

@MohamedAlaa
MohamedAlaa / tmux-cheatsheet.markdown
Last active April 25, 2024 06:23
tmux shortcuts & cheatsheet

tmux shortcuts & cheatsheet

start new:

tmux

start new with session name:

tmux new -s myname
@n1k0
n1k0 / location.js
Created July 4, 2012 08:46
PhantomJS test script for window.location
var page = require('webpage').create();
var base = phantom.args[0];
var path = phantom.args[1];
var expected = phantom.args[2];
page.onNavigationRequested = function(url, navigationType, navigationLocked, isMainFrame) {
console.log('Navigation requested: ' + navigationType + '; ' + url);
if (!page.testStarted) {
return;
}
@cpjolicoeur
cpjolicoeur / gist:3590737
Created September 1, 2012 23:15
Ordering a query result set by an arbitrary list in PostgreSQL

I'm hunting for the best solution on how to handle keeping large sets of DB records "sorted" in a performant manner.

Problem Description

Most of us have work on projects at some point where we have needed to have ordered lists of objects. Whether it be a to-do list sorted by priority, or a list of documents that a user can sort in whatever order they want.

A traditional approach for this on a Rails project is to use something like the acts_as_list gem, or something similar. These systems typically add some sort of "postion" or "sort order" column to each record, which is then used when querying out the records in a traditional order by position SQL query.

This approach seems to work fine for smaller datasets, but can be hard to manage on large data sets with hundreds (or thousands) of records needing to be sorted. Changing the sort position of even a single object will require updating every single record in the database that is in the same sort group. This requires potentially thousands of wri

@rgreenjr
rgreenjr / postgres_queries_and_commands.sql
Last active April 23, 2024 19:14
Useful PostgreSQL Queries and Commands
-- show running queries (pre 9.2)
SELECT procpid, age(clock_timestamp(), query_start), usename, current_query
FROM pg_stat_activity
WHERE current_query != '<IDLE>' AND current_query NOT ILIKE '%pg_stat_activity%'
ORDER BY query_start desc;
-- show running queries (9.2)
SELECT pid, age(clock_timestamp(), query_start), usename, query
FROM pg_stat_activity
WHERE query != '<IDLE>' AND query NOT ILIKE '%pg_stat_activity%'