Maanav Shah maanavshah

Ruby on Rails

System Design Cheatsheet

Picking the right architecture = Picking the right battles + Managing trade-offs

User cases (description of sequences of events that, taken together, lead to a system doing something useful)
- Who is going to use it?
- How are they going to use it?

	#!/bin/bash
	sudo apt-get update

	# To make sure we have everything necessary for Webpacker support in Rails, we're first going to start by adding the Node.js and Yarn repositories to our system before installing them.

	sudo apt-get install curl
	curl -sL https://deb.nodesource.com/setup_8.x \| sudo -E bash -
	curl -sS https://dl.yarnpkg.com/debian/pubkey.gpg \| sudo apt-key add -
	echo "deb https://dl.yarnpkg.com/debian/ stable main" \| sudo tee /etc/apt/sources.list.d/yarn.list
	sudo apt-get update

	# This script verifies if a list of "blacklist" words are presented in the files you are intended to commit such console
	# output, debugging information or keys/tokens/passwords

	# Instructions:
	# Put this file into your .git/hooks folder and set as executable (chmod +x pre-commit)

	# If you want to skip the hook just add the --no-verify: git commit --no-verify

	# ---------------------------------------------

	#!/bin/sh

	git filter-branch --env-filter '
	OLD_EMAIL="maanav@getwalnut.com"
	CORRECT_NAME="maanav"
	CORRECT_EMAIL="shah.maanav.07@gmail.com"
	if [ "$GIT_COMMITTER_EMAIL" = "$OLD_EMAIL" ]
	then
	export GIT_COMMITTER_NAME="$CORRECT_NAME"
	export GIT_COMMITTER_EMAIL="$CORRECT_EMAIL"

	{0: 'tench, Tinca tinca',
	1: 'goldfish, Carassius auratus',
	2: 'great white shark, white shark, man-eater, man-eating shark, Carcharodon carcharias',
	3: 'tiger shark, Galeocerdo cuvieri',
	4: 'hammerhead, hammerhead shark',
	5: 'electric ray, crampfish, numbfish, torpedo',
	6: 'stingray',
	7: 'cock',
	8: 'hen',
	9: 'ostrich, Struthio camelus',