cpuspellcaster

ETags: a pretty sweet feature of HTTP 1.1

HTTP caching review

HTTP provides two ways for servers to control client-side caching of page components:

• freshness may be based on a date or a token whose meaning is app-specific
• whether or not the client needs to confirm the cached version is up-to-date with the server

This breaks down as follows:

• Cache locally and don't check before using.

cpuspellcaster

#!/usr/bin/ruby
# Create display override file to force Mac OS X to use RGB mode for Display
# see http://embdev.net/topic/284710

require 'base64'

data=`ioreg -l -d0 -w 0 -r -c AppleDisplay`

edids=data.scan(/IODisplayEDID.*?<([a-z0-9]+)>/i).flatten
vendorids=data.scan(/DisplayVendorID.*?([0-9]+)/i).flatten

cpuspellcaster

# installs to /opt/gradle
# existing versions are not overwritten/deleted
# seamless upgrades/downgrades
# $GRADLE_HOME points to latest *installed* (not released)
gradle_version=1.11
wget -N http://services.gradle.org/distributions/gradle-${gradle_version}-all.zip
sudo mkdir -p /opt/gradle
sudo unzip -fo gradle-${gradle_version}-all.zip -d /opt/gradle
sudo ln -sfn gradle-${gradle_version} /opt/gradle/latest
sudo printf "export GRADLE_HOME=/opt/gradle/latest\nexport PATH=\$PATH:\$GRADLE_HOME/bin" | sudo tee /etc/profile.d/gradle.sh > /dev/null

cpuspellcaster

DELIMITER $$

DROP PROCEDURE IF EXISTS add_email_address_column_to_customers_table $$

-- Create the stored procedure to perform the migration
CREATE PROCEDURE add_email_address_column_to_customers_table()

BEGIN
  
  -- Add the email_address column to the customers table, if it doesn't already exist