lynsei

sudo apt-get install zlib1g-dev
sudo apt-get install g++
sudo apt-get install uuid-dev

export VENV=$VIRTUAL_ENV
mkdir $VENV/packages && cd $VENV/packages

curl -O http://oligarchy.co.uk/xapian/1.2.18/xapian-core-1.2.18.tar.xz
curl -O http://oligarchy.co.uk/xapian/1.2.18/xapian-bindings-1.2.18.tar.xz

lynsei

Caching multi-stage builds in GitHub Actions

Caching Docker builds in GitHub Actions is an excellent article by @dtinth which analyses various strategies for speeding up builds in GitHub Actions. The upshot of the article is a fairly decisive conclusion that the best two ways to improve build times are:

1. Build images via a standard docker build command, while using GitHub Packages' Docker registry as a cache = Longer initial build but fastest re-build times.

2. Build your images via docker integrated BuildKit (DOCKER_BUILDKIT=1 docker build), while using a local registry and actions/cache to persist build caches = Fastest initial build but slightly longer re-build times.

The problem

lynsei

# import config.
# You can change the default config with `make cnf="config_special.env" build`
cnf ?= config.env
include $(cnf)
export $(shell sed 's/=.*//' $(cnf))

# import deploy config
# You can change the default deploy config with `make cnf="deploy_special.env" release`
dpl ?= deploy.env
include $(dpl)

lynsei

Sequelize: Step-By-Step

Sequelize is a powerful library in Javascript that makes it easy to manage a SQL database. Sequelize can layer over different protocols, but here we'll use PostgreSQL. At its core, Sequelize is an Object-Relational Mapper – meaning that it maps an object syntax onto our database schemas. Sequelize uses Node.JS and Javascript's object syntax to accomplish its mapping.

Under the hood, Sequelize used with PostgreSQL is several layers removed from our actual database:

1. First, we write our Sequelize, using Javascript objects to mimic the structure of our database tables.
2. Sequelize creates a SQL string and passes it to a lower-level library called pg (PostgreSQL).
3. pg connects to your PostgreSQL database and queries it or transforms its data.
4. pg passes the data back to Sequelize, which parses and returns that data as a Javascript object.

lynsei

/**
 * A variant of the JSON reader. Instead of reading arrays, where each record in the array field
 * has an 'id' property, it reads objects - aka associative arrays. The key of the entry will be the
 * array.
 * 
 * So where the JSON reader would like data like this:
 * [ { id: '1', property: 'foo' }, { id: '2', property: 'bar' } ]
 * 
 * the associative reader likes data like this:
 * { '1': { property: 'foo' }, '2': { property: 'bar' } }

lynsei

#cloud-config
packages:
  - apt-transport-https
  - ca-certificates
  - curl
  - gnupg-agent
  - software-properties-common
  - git

# create the docker group

lynsei

#!/bin/bash
# shellcheck disable=1090,1091,2059

# set ENV default value to 'dev''
ENV="${1:-dev}"

# import (source) utility variables and functions
. "$DIR/bootstrap/utils"

# Terminal output to illustrate progress

lynsei

#!/usr/bin/bash

dialog \
    --title "Yeah!" \
    --msgbox "Test for dialog.\nPress OK." \
    7 60

dialog \
    --title "Excuse me?" \
    --yesno "Are you still there?" \

lynsei

#!/bin/bash -
#
# SCRIPT: aacpi
# AUTHOR: Luciano D. Cecere
# DATE: 2014
#
########################################################################
#
# acpi - show laptop battery information
# Copyright (C) 2014 Luciano D. Cecere <[email protected]>

lynsei

# Path to your oh-my-zsh installation.
export ZSH="/Users/jimrennie/.oh-my-zsh"

ZSH_THEME="powerlevel9k/powerlevel9k"

POWERLEVEL9K_MODE="nerdfont-complete"

POWERLEVEL9K_PROMPT_ON_NEWLINE=false
POWERLEVEL9K_RPROMPT_ON_NEWLINE=false