Marc Ignacio padi

Literate Ruby

$ cat hello.rb.md
Here's a simple program

    puts "Hello, world"
$ ruby litrb.rb < hello.rb.md

Hello, world

Get started with Ansible in 2 minutes

Install Ansible

$ brew install ansible            # OSX
$ [sudo] pip install ansible # elsewhere

tmux cheat sheet

(C-x means ctrl+x, M-x means alt+x)

Prefix key

The default prefix is C-b. If you (or your muscle memory) prefer C-a, you need to add this to ~/.tmux.conf:

remap prefix to Control + a

Download and install p4merge

Download the perforce visual tool suite from here: http://www.perforce.com/perforce/downloads/index.html
Copy only the p4merge.app file into your /Applications/ directory

Setup p4merge as a visual mergetool

ruby-1.9.3-p327 cumulative performance patch for rbenv

This installs a patched ruby 1.9.3-p327 with various performance improvements and a backported COW-friendly GC, all courtesy of funny-falcon.

Requirements

You will also need a C Compiler. If you're on Linux, you probably already have one or know how to install one. On OS X, you should install XCode, and brew install autoconf using homebrew.

	The purpose of all this is to see if sphinx, thinking sphinx and thinking sphinx delayed delta are all working properly.

	I created a test controller on a separate monit subdomain that simply generates and posts a test value and then uses curl to retrieve it. If the two values match, then sphinx is working properly with delayed delta.

	This example assumes a Linux installation.

	The file 'delayed_delta.sh' spawns the `rake ts:dd` process in the background, saving its PID to tmp/pids in your Rails project. You can start and stop it by running '/etc/init.d/delayed_delta.sh start' and '/etc/init.d/delayed_delta.sh stop'. You will use these in your monitoring to, see the monitrc snippet.

	In a crontab, every X seconds or minutes, run 'ar_sphinx_mon.sh' to see if records are properly being inserted and indexed. If they aren't, then kill all Thinking Sphinx processes and monit should restart them.

	# inspired by http://ariejan.net/2010/08/23/resque-how-to-requeue-failed-jobs

	# retry all failed Resque jobs except the ones that have already been retried
	# This is, for instance, useful if you have already retried some jobs via the web interface.
	Resque::Failure.count.times do \|i\|
	Resque::Failure.requeue(i) unless Resque::Failure.all(i, 1)['retried_at'].present?
	end

	# retry all :)
	Resque::Failure.count.times do \|i\|

	build_package_combined_patch() {
	local package_name="$1"

	{
	curl https://raw.github.com/gist/4136373/falcon-gc.diff \| patch -p1
	autoconf
	./configure --prefix="$PREFIX_PATH" $CONFIGURE_OPTS
	make -j 8
	make install
	} >&4 2>&1

	Download the following ZIPs:

	ARM Translation Installer v1.1 (http://www.mirrorcreator.com/files/0ZIO8PME/Genymotion-ARM-Translation_v1.1.zip_links)

	Download the correct GApps for your Android version:
	Google Apps for Android 4.4.4 (https://www.androidfilehost.com/?w=files&flid=15801)
	Google Apps for Android 4.3 (http://goo.im/gapps/gapps-jb-20130813-signed.zip)
	Google Apps for Android 4.2 (http://goo.im/gapps/gapps-jb-20130812-signed.zip)
	Google Apps for Android 4.1 (http://goo.im/gapps/gapps-jb-20121011-signed.zip)

	=> #<OpenStruct site_id="7018", currency_decimals="2", tax_decimals="2", tax_rate_1="7.0000", tax_rate_2="0.0000", regional_options="0", unit_type_id="28", unit_type_name="Drive Up Unit", has_charge_tax_1=true, has_charge_tax_2=true, def_lease_num="1", is_mobile=true, is_inside=true, floor="1", width="9.5000", length="20.0000", area="190.0000", push_rate="80.0000", standard_rate="100.0000", standard_weekly_rate="0.0000", total_units="1", total_units_occupied="1", total_units_vacant="0", total_units_reserved="1", first_available_unit_id="2972", first_available_unit_name="100", first_available_unit_description="This is a test. Ramp access, Elevator, interior", representative_unit_id="2972", representative_unit_name="100", representative_unit_description="This is a test. Ramp access, Elevator, interior", admin_fee="0.0000", reservation_fee="10.0000", is_first_available_unit_rented=true>

	=> #<OpenStruct site_id="7018", currency_decimals="2", tax_decimals="2", tax_rate_1="7.0000", tax_rate_2="0.0000", regional_op