herval / gist:654cbba7dd919599c844f4fce03d43ba

Created May 12, 2017 23:13

keybase.md

	### Keybase proof

	I hereby claim:

	* I am herval on github.
	* I am herval (https://keybase.io/herval) on keybase.
	* I have a public key ASD9Cs4lUm0LtcLwHZqssHZEH3A6w3WWC_H7jul4nrRLHQo

	To claim this, I am signing this object:

herval / main.cpp

Created March 18, 2017 04:48

C++11 syntax & stuff

	#include <iostream>

	// template (generics)
	template<typename F>
	auto &f(F &param) {
	return param;
	}

	// TODO reflection
	// TODO type casting/switching

herval / int_additions.scala

Created April 18, 2016 14:37

Manipulating maps with Monoids

	object MindBlown extends App {
	trait Monoid[A] {
	def op(a1: A, a2: A): A
	def zero: A
	}

	val intAddition = new Monoid[Int] {
	override def op(a1: Int, a2: Int) = a1 + a2
	override def zero = 0
	}

herval / shakespeare_rnn.txt

Created October 28, 2015 08:56

Shakespeare generator LSTM RNN

	Output from https://github.com/deeplearning4j/dl4j-0.4-examples/blob/master/src/main/java/org/deeplearning4j/examples/rnn/GravesLSTMCharModellingExample.java

	Using existing text file at /var/folders/zs/vsf7sw7540s3jrqjf8ty0jfc0000gp/T/Shakespeare.txt
	Loaded and converted file: 5459809 valid characters of 5465100 total characters (5291 removed)
	22:37:27.108 [main] DEBUG org.reflections.Reflections - going to scan these urls:
	jar:file:/Users/herval/.gradle/caches/modules-2/files-2.1/org.nd4j/nd4j-jblas/0.4-rc3.4/1548e2f266bab6e5bc1a5cd3161c4c850c0059c9/nd4j-jblas-0.4-rc3.4.jar!/
	jar:file:/Users/herval/.gradle/caches/modules-2/files-2.1/org.nd4j/nd4j-api/0.4-rc3.5/9c16cbc97c0da0dba3b1a9fe4fc2efcfa6d689c1/nd4j-api-0.4-rc3.5.jar!/
	jar:file:/Users/herval/.gradle/caches/modules-2/files-2.1/org.nd4j/nd4j-bytebuddy/0.4-rc3.5/e8c11225c9ef69166c328c0b97335f54f3af1955/nd4j-bytebuddy-0.4-rc3.5.jar!/
	22:37:27.263 [main] INFO org.reflections.Reflections - Reflections took 148 ms to scan 3 urls, producing 82 keys and 375 v

herval / stackfile.yml

Last active May 13, 2016 05:00

Daily Postgres Backup from Tutum to S3

	backup:
	image: 'borja/dockup:latest'
	environment:
	- AWS_ACCESS_KEY_ID=<SET ME>
	- AWS_DEFAULT_REGION=<SET ME>
	- AWS_SECRET_ACCESS_KEY=<SET ME>
	- BACKUP_NAME=<SET ME>
	- PATHS_TO_BACKUP=/var/lib/postgresql/data
	- S3_BUCKET_NAME=<SET ME>
	restart: on-failure

herval / rds_to_docker.md

Last active June 4, 2024 13:30

Moving a Postgres db from RDS to a Docker container

Make a backup from RDS

pg_dump -h <rds host> -p 5432 -F c -O -U <rds user> <db name> > db.dump

Restore the backup into a Docker container

docker run --rm --interactive --link <postgres container id>:postgres --volume $PWD/:/tmp/ postgres:latest /bin/bash -c 'pg_restore --verbose --clean --no-acl --no-owner -h "$POSTGRES_PORT_5432_TCP_ADDR" -p "$POSTGRES_PORT_5432_TCP_PORT" -U postgres -d <db name> /tmp/db.dump'

herval / recommendations.rb

Created February 20, 2013 03:14

	class Entity < Struct.new(:name, :ratings)
	end

	@gamers = [
	Entity.new('Lisa', {
	'Prince of Persia' => 2.5,
	'Doom' => 3.5,
	'Castle Wolfenstein' => 3.0,
	'Rise of the Triad' => 3.5,
	'Commander Keen' => 2.5,

herval / each_hash_inject.rb

Created September 25, 2012 21:45

Comparing each, Hash[] and inject performance

	require 'benchmark'

	runs = 1000

	original_data = {}
	1000.times do \|t\| # 1000 depts with 100 guys each
	original_data["dept_#{t}"] = (1..100).to_a
	end

	def employee_name(id)

herval / gist:3007029

Created June 27, 2012 21:39

curl -i -H "Accept: application/json" -X POST -d "title=<bug title>&access_token=<your access token>" https://api.github.com/repos/<username>/<your repo>/issues

herval / gist:2044137

Created March 15, 2012 13:13

My .bash_profile prompt

	function parse_git_branch {
	git branch --no-color 2> /dev/null \| sed -e '/^[^]/d' -e 's/ $.*$/(\1)/'
	}

	# <rvm_ruby@gemset> (<git branch, if in a git folder>) @ <current path in disk>
	PS1='\[\e[0;32m\]$(~/.rvm/bin/rvm-prompt i v g) $(parse_git_branch)\[\e[m\] @ \[\e[1;34m\]\w\[\e[m\] \[\e[m\]
	\[\e[1;32m\]\$ \[\e[m\]\[\e[m\] '

Herval Freire herval

Make a backup from RDS

Restore the backup into a Docker container