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@youngbrioche
youngbrioche / images_helper.rb
Last active February 8, 2024 08:15
Responsive images helper using srcset in Rails
module ImagesHelper
# Acts as a thin wrapper for image_tag and generates an srcset attribute for regular image tags
# for usage with responsive images polyfills like picturefill.js, supports asset pipeline path helpers.
#
# image_set_tag 'pic_1980.jpg', { 'pic_640.jpg' => '640w', 'pic_1024.jpg' => '1024w', 'pic_1980.jpg' => '1980w' }, sizes: '100vw', class: 'my-image'
#
# => <img src="/assets/ants_1980.jpg" srcset="/assets/pic_640.jpg 640w, /assets/pic_1024.jpg 1024w, /assets/pic_1980.jpg 1980w" sizes="100vw" class="my-image">
#
def image_set_tag(source, srcset = {}, options = {})
srcset = srcset.map { |src, size| "#{path_to_image(src)} #{size}" }.join(', ')
@mattheworiordan
mattheworiordan / application.rb
Created March 28, 2014 09:05
CloudFlare IP Middleware for Rails to ensure HTTP_CF_CONNECTING_IP is used and the clients IP is correct within Rails
module RailsAppName
class Application < Rails::Application
# .... your settings
require "#{Rails.root}/lib/cloud_flare_middleware"
config.middleware.insert_before(0, Rack::CloudFlareMiddleware)
# ... your settings
end
end
@elberskirch
elberskirch / jekyll-deployment.md
Last active January 16, 2019 03:06
Capistrano deployment for jekyll

introduction

This is a short rundown for setting up deployment for a jekyll blog using a self-hosted git repository and a vserver running nginx. Deployment is done with capistrano (version 3).

Github is probably the most common and most convenient way to host your code for your jekyll blog, but sometimes you might want to keep everything under your own control or you're just curious what barebones git does for you.

setting up the git repository

For setting up a git repository on a linux machine I used this guide. A short wrapup:

  • add a git user
@stephenscaff
stephenscaff / Random Images on Refresh
Last active October 21, 2023 07:29
Super simple way to randomly load new images on refresh via Jquery and DOM injection. Great for banners.
<!DOCTYPE html>
<head>
<!--Little CSS fade in -->
<style>
.fade-in{
-webkit-animation: fade-in 2s ease;
-moz-animation: fade-in ease-in-out 2s both;
-ms-animation: fade-in ease-in-out 2s both;
-o-animation: fade-in ease-in-out 2s both;
@plentz
plentz / nginx.conf
Last active April 24, 2024 11:15
Best nginx configuration for improved security(and performance)
# to generate your dhparam.pem file, run in the terminal
openssl dhparam -out /etc/nginx/ssl/dhparam.pem 2048
@be9
be9 / paginate.rb
Created September 5, 2013 04:18
kaminari + JSON API pagination helper
def paginate(scope, default_per_page = 20)
collection = scope.page(params[:page]).per((params[:per_page] || default_per_page).to_i)
current, total, per_page = collection.current_page, collection.num_pages, collection.limit_value
return [{
pagination: {
current: current,
previous: (current > 1 ? (current - 1) : nil),
next: (current == total ? nil : (current + 1)),
@stuartsierra
stuartsierra / fresh-chrome.sh
Last active October 13, 2020 16:07
Launch new instances of Google Chrome on OS X with isolated cache, cookies, and user config
#!/usr/bin/env bash
# fresh-chrome
#
# Use this script on OS X to launch a new instance of Google Chrome
# with its own empty cache, cookies, and user configuration.
#
# The first time you run this script, it will launch a new Google
# Chrome instance with a permanent user-data directory, which you can
# customize below. Perform any initial setup you want to keep on every
@willurd
willurd / web-servers.md
Last active May 4, 2024 07:22
Big list of http static server one-liners

Each of these commands will run an ad hoc http static server in your current (or specified) directory, available at http://localhost:8000. Use this power wisely.

Discussion on reddit.

Python 2.x

$ python -m SimpleHTTPServer 8000
@benolee
benolee / rails-routes-visualizer.txt
Created April 25, 2013 19:06
$ rails r 'File.write("./viz.html", Rails.application.routes.router.visualizer)'
$ ruby -r webrick -e "s = WEBrick::HTTPServer.new(:Port => 8080, :DocumentRoot => Dir.pwd); trap('INT') { s.shutdown }; s.start"
$ open "http://localhost:8080/viz.html"
@jimothyGator
jimothyGator / README.md
Last active April 25, 2024 18:00
Nginx configuration for Mac OS X with Homebrew, using sites-enabled directory. 
mkdir -p /usr/local/etc/nginx/sites-{enabled,available}
cd /usr/local/etc/nginx/sites-enabled
ln -s ../sites-available/default.conf
ln -s ../sites-available/default-ssl.conf

File locations:

  • nginx.conf to /usr/local/etc/nginx/
  • default.conf and default-ssl.conf to /usr/local/etc/nginx/sites-available
  • homebrew.mxcl.nginx.plist to /Library/LaunchDaemons/