MUA msuzoagu

Release Notes Template

Based off https://palantir.quip.com/pzRwAVr1bpzf

Pro-tip: look through the github diff between the previous release to see what's changed. The commit titles should give an outline of what's happened.

Upgrade Steps

List out, as concretely as possible, any steps users have to take when they upgrade beyond just dumping the dependency.
Write pseudocode that highlights what code should change and how.

Semantic Commit Messages

See how a minor change to your commit message style can make you a better programmer.

Format: <type>(<scope>): <subject>

<scope> is optional

Example

AppDelegate -> Router -> MVP/C

graph TD
D[Deep link]-->R
A[App Delegate]-->R
R{Router} -->V(View)
P(Presenter) -- View Model --> V(View)
V -- Event Delegate --> P
P --> U1((Use Case))
U1-.-&gt;P

GNU Make Cheatsheet

Based on https://www.gnu.org/software/make/manual/html_node/Quick-Reference.html

Directives

Directive	Description
`define variable` `define variable =` `define variable :=` `define variable ::=` `define variable +=` `define variable ?=` `endef`	Define multi-line variables.
`undefine variable`	Undefining variables.

ZSH CheatSheet

This is a cheat sheet for how to perform various actions to ZSH, which can be tricky to find on the web as the syntax is not intuitive and it is generally not very well-documented.

Strings

Description	Syntax
Get the length of a string	`${#VARNAME}`
Get a single character	`${VARNAME[index]}`

Dealing with Ruby versions - chruby

Every time I sit down to code, it seems like a new Ruby version is available.

When I first learned ruby I used rvm on my Mac. In production on linux, I use rbenv, likely due to its Capistrano integration.

When I set up my current machine, I found rvm had fallen out of fashion in favour of something called chruby.

Install new ruby

The Terraform group_by you've been missing

I'm playing around a lot nowadays with Terraform 0.13 and I found a really interesting feature and that's the ... symbol (also called an ellipsis) to be used with for expressions.

The operator can be used for group_by operations.

Example

We have a list of entries. The list contains employee/manager/project triplets.

List of IAM Permissions

This is a list of controls that can be placed into an IAM policy document. All content comes from AWS documentation.

Something wrong? Try looking here.

Table of Contents generated with DocToc

List of IAM Permissions
- IAM Policy Variables

	See:

	The CloudKitNote Class

	For starters, a few custom errors can be defined to shield the client from the internals of CloudKit, and a simple delegate protocol can inform the client of remote updates to the underlying Note data.

	import CloudKit

	enum CloudKitNoteError : Error {
	case noteNotFound

	#! /bin/bash

	# An overly obvious reference for most commonly requested bash timestamps
	# Now all you Mac fags can stop pestering me.

	cat << EOD
	Format/result \| Command \| Output
	------------------------------+----------------------------+------------------------------
	YY-MM-DD_hh:mm:ss \| date +%F_%T \| $(date +%F_%T)
	YYMMDD_hhmmss \| date +%Y%m%d_%H%M%S \| $(date +%Y%m%d_%H%M%S)