ravibhure

In your local clone of your forked repository, you can add the original GitHub repository as a "remote". ("Remotes" are like nicknames for the URLs of repositories - origin is one, for example.) Then you can fetch all the branches from that upstream repository, and rebase your work to continue working on the upstream version. In terms of commands that might look like:

Add the remote, call it "upstream":

git remote add upstream https://github.com/whoever/whatever.git

Fetch all the branches of that remote into remote-tracking branches, such as upstream/master:

git fetch upstream

santisbon

Updating a feature branch

First we'll update your local master branch. Go to your local project and check out the branch you want to merge into (your local master branch)

$ git checkout master

Fetch the remote, bringing the branches and their commits from the remote repository. You can use the -p, --prune option to delete any remote-tracking references that no longer exist in the remote. Commits to master will be stored in a local branch, remotes/origin/master.

indiesquidge

Subdomaining Localhost with Rails 5

I've been following this blog post on how to set up an api-only Rails 5 application. One of the sections talks about creating a subdomain for your api

Rails.application.routes.draw do
  constraints subdomain: "api" do
    scope module: "api" do

mlanett

HTTP status code symbols for Rails

Thanks to Cody Fauser for this list of HTTP responce codes and their Ruby on Rails symbol mappings.

Status Code Symbol
1xx Informational
100 :continue
101 :switching_protocols
102 :processing

Kartones

PSQL

Magic words:

psql -U postgres

Some interesting flags (to see all, use -h or --help depending on your psql version):

• -E: will describe the underlaying queries of the \ commands (cool for learning!)
• -l: psql will list all databases and then exit (useful if the user you connect with doesn't has a default database, like at AWS RDS)

lfender6445

Pry Cheat Sheet

• Youtube Tutorial 2013

Command Line

• pry -r ./config/app_init_file.rb - load your app into a pry session (look at the file loaded by config.ru)
• pry -r ./config/environment.rb - load your rails into a pry session

Debugger

awesome

# UPDATE: Ruby 2.0.0 https://docs.ruby-lang.org/en/2.0.0/Kernel.html#method-i-__dir__

# $ ruby -v
# ruby 2.6.3p62 (2019-04-16 revision 67580) [x86_64-darwin18]
# $ pwd
# /Users/dev/Documents/Github/Gists/awesome/
# $ echo "puts __dir__" > how-to-get-the-directory-of-the-current-file-using-ruby-2-0-0.rb
# $ cat how-to-get-the-directory-of-the-current-file-using-ruby-2-0-0.rb
# puts __dir__
# $ ruby how-to-get-the-directory-of-the-current-file-using-ruby-2-0-0.rb

julionc

How to install PhantomJS on Ubuntu

Version: 1.9.8

Platform: x86_64

First, install or update to the latest system software.

sudo apt-get update
sudo apt-get install build-essential chrpath libssl-dev libxft-dev

mattnorris

Creating Whispernote's GitHub Project Page

Jekyll, GitHub's static site generator, and Bootstrap were used to create Whispernote's GitHub Project Page. This document shows how.

Project Goals

I wanted a stylish "brand" page for my project, and I wanted to reuse the README file I had created without a lot of copy/pasting. GitHub's Jekyll allowed me to essentially embed the file as a partial. What I got was really an enhanced README file (thanks to some jQuery and Bootstrap), which is exactly what I wanted.

gh-pages

carloscortegagna

c = ActiveRecord::Base.connection
c.tables.collect do |t|  
  columns = c.columns(t).collect(&:name).select {|x| x.ends_with?("_id" || x.ends_with("_type"))}
  indexed_columns = c.indexes(t).collect(&:columns).flatten.uniq
  unindexed = columns - indexed_columns
  unless unindexed.empty?
    puts "#{t}: #{unindexed.join(", ")}"
  end
end