Rogério Rodrigues de Alcântara roalcantara

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Don't Panic!

An ape who happens to talk, code and tweet.

roalcantara / clean_up.rb

Created June 28, 2017 20:04

Ruby > Remove has values recursively

roalcantara / docker.sh

Last active June 7, 2017 14:10

Docker: Commands

	docker cp <containerId>:/file/path/within/container /host/path/target

	docker exec -u root -it <containerId> chown other:user -R /host/path/target

roalcantara / user_where_between.rb

Created May 31, 2017 00:02

Rails3+ > Where > Between > Date

User.where(created_at: Time.current.beginning_of_day..Time.current.end_of_day).count

roalcantara / npm.sh

Created April 26, 2017 19:02

Node

	# starts a node project
	npm init

	# ecma6 transpiler
	npm install babel babel-cli babel-preset-es2015 --save

	# web server
	npm install express --save

	# test environment

roalcantara / pg_restore.md

Created April 23, 2017 12:17

Heroku > Postgres Backup and Restore

heroku pg:backups capture -a app-name

curl -o tmp/latest.dump `heroku pg:backups public-url -a app-name`

pg_restore --verbose --clean --no-acl --no-owner -h localhost -d app-name tmp/latest.dump

roalcantara / active_model_serializers.rb

Last active April 26, 2019 16:55

Rails5 > RSpec > ActiveModel::Serializers Raw

	# spec/support/active_model_serializers.rb

	# inspired by: https://sonjapeterson.github.io/2016/03/19/testing-serializers.html
	module SerializerSpecHelper
	def serialize(obj, opts = {})
	serializer_class = opts.delete(:serializer_class) \|\| "#{obj.class.name}Serializer".constantize
	serializer = serializer_class.send(:new, obj)
	serializer.serializable_hash.with_indifferent_access
	end
	end

roalcantara / elasticsearch.rb

Created March 24, 2017 14:58

Rails > Disabling elasticsearch requests durying rspec tests

	# spec/support/elasticsearch.rb
	RSpec.configure do \|config\|
	config.before :each do
	stub_request(:any, /localhost:9200/).to_return(body: "<html>a webpage!</html>", status: 200)
	end
	end

roalcantara / git_push_to_remote_with_pem_auth.sh

Last active January 24, 2020 02:42

Git push to remote with pem authentication

	# generate public/private keys using ssh-keygen
	ssh-keygen -t rsa

	# change the permissions of the .pem file so only the root user can read it
	chmod 400 amazon-generated-key.pem

	# copy the machine to the remote repository
	ssh-copy-id -i ~/.ssh/id_rsa.pub amazon-generated-key.pem ec2-user@amazon-instance-public-dns

	# or

roalcantara / gsub.rb

Created February 4, 2017 15:03

Ruby: Removing tags with gsub and regex

	str = '''
	<input maxlength=\"1\" size=\"1\" onfocus=\"inputFieldFocus(this)\" onkeyup=\"autotab(this,1,event)\" class=\"screen_color_UNA screen_field \" value=\"\" name=\"IF_642\" type=\"text\"> 213.897.176
	<input maxlength=\"1\" size=\"1\" onfocus=\"inputFieldFocus(this)\" onkeyup=\"autotab(this,1,event)\" class=\"screen_color_UNA screen_field \" value=\"\" name=\"IF_722\" type=\"text\"> 213.897.077
	'''
	str.gsub(/<input(.*?)"> /, '')
	# => "\n213.897.176\n213.897.077\n"

roalcantara / spec.sh

Created January 26, 2017 12:25

RSpec: Running spec multiple times (through bash)

for i in `seq 50` ; do rspec spec -e User; [[ ! $? = 0 ]] && break ; done