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Bruno Tavares bltavares

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@daveray
daveray / seesaw-repl-tutorial.clj
Created December 7, 2011 04:55
Seesaw REPL Tutorial
; A REPL-based, annotated Seesaw tutorial
; Please visit https://github.com/daveray/seesaw for more info
;
; This is a very basic intro to Seesaw, a Clojure UI toolkit. It covers
; Seesaw's basic features and philosophy, but only scratches the surface
; of what's available. It only assumes knowledge of Clojure. No Swing or
; Java experience is needed.
;
; This material was first presented in a talk at @CraftsmanGuild in
; Ann Arbor, MI.
def output name=((default=true); "caius")
puts "name: #{name.inspect}"
puts "default: #{default.inspect}"
end
output
# >> name: "caius"
# >> default: true
output "avdi"
@gvaughn
gvaughn / yamlpitfalls.md
Last active April 29, 2020 07:56
YAML pitfalls

Case 1: Missing Colon

.yml looks like:

  purchases_edit
    cannot_edit: "Purchase cannot be edited after submission"

We can test in irb:

@bltavares
bltavares / git-config.sh
Last active October 4, 2015 22:07
Ubuntu Post-install
git config --global user.name "Bruno Tavares"
git config --global alias.s "status -sb"
git config --global alias.ci commit
git config --global alias.co checkout
git config --global alias.l log
git config --global alias.graph "log --graph --decorate --oneline --branches"
git config --global alias.df "diff --cached --color-words"
git config --global alias.dff "diff --color-words"
git config --global color.ui always
git config --global core.excludesfile ~/.gitignore_global
@jboner
jboner / latency.txt
Last active June 12, 2024 14:31
Latency Numbers Every Programmer Should Know
Latency Comparison Numbers (~2012)
----------------------------------
L1 cache reference 0.5 ns
Branch mispredict 5 ns
L2 cache reference 7 ns 14x L1 cache
Mutex lock/unlock 25 ns
Main memory reference 100 ns 20x L2 cache, 200x L1 cache
Compress 1K bytes with Zippy 3,000 ns 3 us
Send 1K bytes over 1 Gbps network 10,000 ns 10 us
Read 4K randomly from SSD* 150,000 ns 150 us ~1GB/sec SSD
@marktheunissen
marktheunissen / pedantically_commented_playbook.yml
Last active June 5, 2024 22:16 — forked from phred/pedantically_commented_playbook.yml
Insanely complete Ansible playbook, showing off all the options
This playbook has been removed as it is now very outdated.
@trcarden
trcarden / gist:3295935
Created August 8, 2012 15:28
Rails 3.2.7 SSL Localhost (no red warnings, no apache config)
# SSL self signed localhost for rails start to finish, no red warnings.
# 1) Create your private key (any password will do, we remove it below)
$ openssl genrsa -des3 -out server.orig.key 2048
# 2) Remove the password
$ openssl rsa -in server.orig.key -out server.key
@piscisaureus
piscisaureus / pr.md
Created August 13, 2012 16:12
Checkout github pull requests locally

Locate the section for your github remote in the .git/config file. It looks like this:

[remote "origin"]
	fetch = +refs/heads/*:refs/remotes/origin/*
	url = git@github.com:joyent/node.git

Now add the line fetch = +refs/pull/*/head:refs/remotes/origin/pr/* to this section. Obviously, change the github url to match your project's URL. It ends up looking like this:

@millisami
millisami / gist:3798773
Created September 28, 2012 09:04 — forked from juanje/gist:3797297
Mount apt cache of a Vagrant box in the host to spin up the packages installation

This is a little trick I use to spin up the packages instalation on Debian/Ubuntu boxes in Vagrant.

I add a simple function that checks if a directory named something similar to ~/.vagrant.d/cache/apt/opscode-ubuntu-12.04/partial (it may have another path in Windows or MacOS) and create the directory if it doesn't already exist.

def local_cache(box_name)
  cache_dir = File.join(File.expand_path(Vagrant::Environment::DEFAULT_HOME),
                        'cache',
                        'apt',
                        box_name)
@bf4
bf4 / ruby_learning.md
Last active July 17, 2021 08:06
Some Ruby Learning Resources