dgilperez

# create the template
template = PageOfflineTemplate.new
template.quote = quote
template.pages = quote.build_pages
        
# Here I render a template with layout to a string then a PDF
pdf = PDFKit.new template.render_to_string(:template=>"quotes/review.html.haml")
        

dgilperez

Say you have an SVG built dynamically on the client by D3. Now say you want to save it to a static PNG as a fallback for old browsers. There are lots of ways to do this using alternative renderers (such as Batik and PhantomJS), but what if you want your browser to do it, so that you the static PNG matches the dynamic SVG exactly, down to the subpixel, including transparency?

Here’s how.

1. Save as SVG.

Use the SVG Crowbar bookmarklet to save the SVG to a file. Call this file “fallback.svg”. Open the SVG in your browser to verify that it looks right.

SVG Crowbar helpfully inlines any stylesheets you may have on the page, but you might find you need to edit a few of the styles by hand to get things to look right. For example, the font-family “sans-serif” won’t work in an SVG image, even though it works when the SVG is built client-side; you’ll have to make the font name explicit, s

dgilperez

[mike.tig.as][mta] server configuration

This gist contains the nginx and tor configurations for the [mike.tig.as][mta] servers, mainly to show:

• Use of the chris-lea/nginx-devel PPA to allow use of SPDY.
• ssl_ciphers selection to mitigate BEAST attack, enable [perfect forward secrecy][pfs] if possible and select the strongest possible ciphers within those bounds. (Exception is made for several ciphers at the end of list, for compatibility reasons.)

dgilperez

// How to use this:
// 1. Go to the desired profile page on coderwall, like http://coderwall.com/marcinbunsch
// 2. Paste this gist in the JS console 
//
// You can also probably use this in greasemonkey and dot.js
//
// Also, it was tested in Chrome, Firefox and Safari, it probably will 
// not work in IE, but I just don't care about it ;)
//
// UPDATE: Coderwall made changes to the site and I cannot retrieve the achievements, so they are hardcoded, taken from a cached version of the achievements page

dgilperez

Brew upgrade...

Run the usual brew update, and brew upgrade to get the latest 9.4 version of PostgreSQL.

After upgrading PG from 9.3 to 9.4 with brew, the server will not start as is. If you value your database contents, and configuration, pg_upgrade is here to migrate those.

Do not delete the old binaries at once: do not run brew cleanup, because you need 9.3 binaries to migrate.

Migration

dgilperez

class MyCustomCell < UITableViewCell

  # This method is used by ProMotion to instantiate cells.
  def initWithStyle(style_name, reuseIdentifier: reuseIdentifier)
    super
     stylish
    self
  end
  
  # A delegate method when the user clicks the Row(it's blue by default)

dgilperez

class AppDelegate
  def application(application, didFinishLaunchingWithOptions:launchOptions)
    alert = UIAlertView.new
    alert.message = t('start')
    alert.show
    true
  end

  def t(key)
    NSBundle.mainBundle.localizedStringForKey(key, value:nil, table:nil)

dgilperez

gem 'rails', '4.2.1' # prob works on others, too, but this is the one I figured it out on
require "rails"
require 'active_record'
require 'action_controller/railtie'
require 'action_view/railtie'

# =====  Configuration  =====
Rails.logger = ActiveRecord::Base.logger = Logger.new $stdout
ActiveSupport::LogSubscriber.colorize_logging = false

dgilperez

Nginx FastCGI response buffer sizes

By default when Nginx starts receiving a response from a FastCGI backend (such as PHP-FPM) it will buffer the response in memory before delivering it to the client. Any response larger than the set buffer size is saved to a temporary file on disk. This process is also explained at the Nginx ngx_http_fastcgi_module page document page.

Since disk is slow and memory is fast the aim is to get as many FastCGI responses passing through memory only. On the flip side we don't want to set an excessively large buffer as they are created and sized on a per request basis (it's not shared).

The related Nginx options are:

• fastcgi_buffering appeared in Nginx 1.5.6 (1.6.0 stable) and can be used to turn buffering completely on/off. It's on by default.
• [fastcgi_buffer_size](http://nginx.org/en/docs/http/ngx_ht

dgilperez

check process redis-server
    with pidfile "/var/run/redis.pid"
    start program = "/etc/init.d/redis-server start"
    stop program = "/etc/init.d/redis-server stop"
    if 2 restarts within 3 cycles then timeout
    if totalmem > 100 Mb then alert
    if children > 255 for 5 cycles then stop
    if cpu usage > 95% for 3 cycles then restart
    if failed host 127.0.0.1 port 6379 then restart
    if 5 restarts within 5 cycles then timeout