Skip to content

Instantly share code, notes, and snippets.

View joe11051105's full-sized avatar

Joe Wang joe11051105

View GitHub Profile
@olivierlacan
olivierlacan / migrate_postgresql_database.md
Last active April 19, 2025 14:26
How to migrate a Homebrew-installed PostgreSQL database to a new major version (9.3 to 9.4) on OS X. See upgraded version of this guide: http://olivierlacan.com/posts/migrating-homebrew-postgres-to-a-new-version/

This guide assumes that you recently run brew upgrade postgresql and discovered to your dismay that you accidentally bumped from one major version to another: say 9.3.x to 9.4.x. Yes, that is a major version bump in PG land.

First let's check something.

brew info postgresql

The top of what gets printed as a result is the most important:

@iangreenleaf
iangreenleaf / gist:b206d09c587e8fc6399e
Last active December 23, 2025 06:04
Rails naming conventions

Rails naming conventions

General Ruby conventions

Class names are CamelCase.

Methods and variables are snake_case.

Methods with a ? suffix will return a boolean.

@prestonparris
prestonparris / reactjs-conf-2015-notes.md
Last active April 6, 2017 21:32
Notes from the 2015 React.js Conference

Reactjs conf 2015 Notes

  • react native announced

    • Allows you to use react style javascript to target native ios and android, native views, live reloading
    • intro pt1
    • intro pt2
    • facebook groups app uses react native with graphql and relay
  • realtime page tweaking

    • rethink best practices and workflows
  • inmutability is a good idea

@johnbintz
johnbintz / simple-capistrano-docker-deploy.rb
Last active June 6, 2025 20:51
Simple Capistrano deploy for a Docker-managed app
# be sure to comment out the require 'capistrano/deploy' line in your Capfile!
# config valid only for Capistrano 3.1
lock '3.2.1'
set :application, 'my-cool-application'
# the base docker repo reference
set :name, "johns-stuff/#{fetch(:application)}"
@dhoelzgen
dhoelzgen / base_controller.rb
Last active October 7, 2021 16:19
CORS in Rails 4 APIs
class API::V1::BaseController < ApplicationController
skip_before_filter :verify_authenticity_token
before_filter :cors_preflight_check
after_filter :cors_set_access_control_headers
def cors_set_access_control_headers
headers['Access-Control-Allow-Origin'] = '*'
headers['Access-Control-Allow-Methods'] = 'POST, GET, PUT, DELETE, OPTIONS'
@tristanfisher
tristanfisher / Ansible-Vault how-to.md
Last active August 27, 2025 16:19
A short tutorial on how to use Vault in your Ansible workflow. Ansible-vault allows you to more safely store sensitive information in a source code repository or on disk.

Working with ansible-vault


I've been using a lot of Ansible lately and while almost everything has been great, finding a clean way to implement ansible-vault wasn't immediately apparent.

What I decided on was the following: put your secret information into a vars file, reference that vars file from your task, and encrypt the whole vars file using ansible-vault encrypt.

Let's use an example: You're writing an Ansible role and want to encrypt the spoiler for the movie Aliens.

@demisx
demisx / angularjs-providers-explained.md
Last active August 26, 2025 03:06
AngularJS Providers: Constant/Value/Service/Factory/Decorator/Provider
Provider Singleton Instantiable Configurable
Constant Yes No No
Value Yes No No
Service Yes No No
Factory Yes Yes No
Decorator Yes No? No
Provider Yes Yes Yes

Constant

@jsteiner
jsteiner / database_cleaner.rb
Created January 10, 2014 20:31
Database Cleaner
RSpec.configure do |config|
config.before(:suite) do
DatabaseCleaner.clean_with(:truncation)
end
config.before(:each) do
DatabaseCleaner.strategy = :transaction
end
config.before(:each, js: true) do
@branneman
branneman / better-nodejs-require-paths.md
Last active January 10, 2026 23:54
Better local require() paths for Node.js

Better local require() paths for Node.js

Problem

When the directory structure of your Node.js application (not library!) has some depth, you end up with a lot of annoying relative paths in your require calls like:

const Article = require('../../../../app/models/article');

Those suck for maintenance and they're ugly.

Possible solutions

@wsargent
wsargent / docker_cheat.md
Last active September 23, 2025 16:14
Docker cheat sheet