nicolashery

Environment variables in Jekyll templates

This is one way to pass some data (API tokens, etc.) to your Jekyll templates without putting it in your _config.yml file (which is likely to be committed in your GitHub repository).

Copy the environment_variables.rb plugin to your _plugins folder, and add any environment variable you wish to have available on the site.config object.

In a Liquid template, that information will be available through the site object. For example, _layouts/default.html could contain:

schickling

require "active_record"

namespace :db do

  db_config       = YAML::load(File.open('config/database.yml'))
  db_config_admin = db_config.merge({'database' => 'postgres', 'schema_search_path' => 'public'})

  desc "Create the database"
  task :create do
    ActiveRecord::Base.establish_connection(db_config_admin)

datenimperator

if ::ActiveRecord::Base.connection_config[:adapter] == 'sqlite3'
  if c = ::ActiveRecord::Base.connection
    # see http://www.sqlite.org/pragma.html for details

    # Page size of the database. The page size must be a power of two between 512 and 65536 inclusive
    c.execute 'PRAGMA main.page_size=4096;'

    # Suggested maximum number of database disk pages that SQLite will hold in memory at once per open database file
    c.execute 'PRAGMA main.cache_size=10000;'

denji

Moved to git repository: https://github.com/denji/nginx-tuning

NGINX Tuning For Best Performance

For this configuration you can use web server you like, i decided, because i work mostly with it to use nginx.

Generally, properly configured nginx can handle up to 400K to 500K requests per second (clustered), most what i saw is 50K to 80K (non-clustered) requests per second and 30% CPU load, course, this was 2 x Intel Xeon with HyperThreading enabled, but it can work without problem on slower machines.

You must understand that this config is used in testing environment and not in production so you will need to find a way to implement most of those features best possible for your servers.

biesnecker

/** @jsx React.DOM */

var SVGComponent = React.createClass({
    render: function() {
        return this.transferPropsTo(
            <svg>{this.props.children}</svg>
        );
    }
});

aresnick

Using CasperJS to scrape an infinite scroll page

This is a short script to scrape an infinite scroll page and write the resulting HTML to a file

You'll need to install CasperJS; on a Mac that will involve brew install casperjs --devel (if you don't have Homebrew, you can read how to do so here)

To run the script, you can use casperjs scrape.js --ssl-protocol=any from the command line.

enpe

cmake_minimum_required( VERSION 3.0 )
project( so-opencv-calibration )

find_package( OpenCV 3.0.0 EXACT REQUIRED )
set( INPUT_FILENAME "${CMAKE_CURRENT_LIST_DIR}/input_00.png" ) # Input file, e.g. http://i.stack.imgur.com/WjER0.png

add_executable( mwe mwe.cpp )
target_compile_definitions( mwe PRIVATE -DINPUT_FILENAME="${INPUT_FILENAME}" )
target_include_directories( mwe PRIVATE ${OpenCV_INCLUDE_DIRS} )
target_link_libraries( mwe ${OpenCV_LIBS} )

fay-jai

import React from "react";
import { render } from "react-dom";

const ParentComponent = React.createClass({
  getDefaultProps: function() {
    console.log("ParentComponent - getDefaultProps");
  },
  getInitialState: function() {
    console.log("ParentComponent - getInitialState");
    return { text: "" };

BretFisher

sudo: required #is required to use docker service in travis

language: php #can be any language, just php for example

services:
  - docker # required, but travis uses older version of docker :(

install:
  - echo "install nothing!" # put your normal pre-testing installs here

varyonic

web:
  build: .
  volumes:
    - .:/opt/myapp
  ports:
    - '3000:3000'
  links:
    - db
    - redis
    - selenium