Derk-Jan Karrenbeld SleeplessByte

Docx (and other Office doc) previewer support for ActiveStorage

Converts all document formats using LibreOffice first to PDF and then to an image, using build-in pdf previwer of ActiveStorage

needs: unoconv, a command line tool which uses libreoffice, e.g. apt install unoconv
needs a PDF converter, because libreoffice will make a pdf from the office document, Mupdf oder Poppler are already integrated into ActiveStorage, and poppler is free to use, e.g. apt install poppler-utils

Video and audio encoding for playback in Android and iOS devices

This document aims to provide an easy way encode video optimized for playback in mobile devices that use the Android or the iOS operating systems.

libx264 is used for (single or two-pass) video encoding and libfdk_aac for audio encoding.

ffmpeg, libx264 and libfdk_aac settings are optimized for playback quality and compatibility on Android and iOS. There is extensive documentation and references for each of the settings used and contributions are very welcome :)

[WINDOWS] How to enable auto-signing Git commits with GnuPG for programs that don't support it natively

This is a step-by-step guide on how to enable auto-signing Git commits with GPG for every applications that don't support it natively (eg. GitHub Desktop, Eclipse, Git Tower, ...)

Requirements

Install GPG4Win: this software is a bundle with latest version of GnuPG v2, Kleopatra v3 certificate manager, GNU Privacy Assistant (GPA) v0.9 which is a GUI that uses GTK+, GpgOL and GpgEX that are respectively an extension for MS Outlook and an extension for Windows Explorer shell
Install Git for Windows: so you can have a *nix based shell, this software is a bundle with latest version of Git which use MINGW environment, a Git bash shell, a Git GUI and an extension for Windows Explorer shell (Make sure your local version of Git is at least 2.0, otherwise Git don't have support for automatically sign your commits)
Verify

	import android.content.Context
	import android.graphics.Canvas
	import android.graphics.Color
	import android.graphics.Paint
	import android.util.AttributeSet
	import android.view.View

	private const val N = 16
	private const val PERIOD1 = -10000.0
	private const val PERIOD2 = -500.0

	#!/bin/bash
	# Script to install PostgreSQL and PostGIS on a fresh Amazon Linux instance

	# Installing from source:
	# - GEOS
	# GEOS 3.10+ requires CMake 3+, not readily available on Amazon Linux 2.
	GEOSVER=3.9.2
	GEOSURL=http://download.osgeo.org/geos/geos-${GEOSVER}.tar.bz2

	# - PROJ (GDAL requires 6+; 6.2.1 is the last to use SQLite 3.7; 6.2 had build issues, so 6.1.1)

	import customModuleLoader = require('module');

	export class CustomModuleLoader {
	public cOptions: any = require('../tsconfig.json').compilerOptions;

	public replacePaths: any = {};

	constructor() {
	Object.keys(this.cOptions.paths).forEach(alias => {
	this.replacePaths[alias.replace(/\.?/, '(.)')] = this.cOptions.paths[alias][0].replace(/\*.?/, '$1');

	CREATE SEQUENCE public.global_id_seq;
	ALTER SEQUENCE public.global_id_seq OWNER TO postgres;

	CREATE OR REPLACE FUNCTION public.id_generator()
	RETURNS bigint
	LANGUAGE 'plpgsql'
	AS $BODY$
	DECLARE
	our_epoch bigint := 1314220021721;
	seq_id bigint;

	data Graph = Graph
	{ pointsLeft :: Set.Set (V2 Double)
	-- ^ All the points in the whole graph left to be connected
	, branches :: Set.Set LineSegment
	-- ^ All branches we have found, connecting two points
	, currentPoints :: [V2 Double]
	-- ^ Points that are currently being processed
	, maxDist :: Double
	-- ^ Maximum distance a thing can be away from a thing
	}

	/** Usage:
	* const MyView = unrecycle(props => {
	* // this is normally a no-go and creates leaking styles, but it won't with unrecycle():
	* <input ref={ c => c && c.style.background='red' } />
	* })
	*/
	export default function unrecycle(Component) {
	return function Unrecycle(props, context) {
	this.componentWillUnmount = dontRecycle;
	return Component.call(this, props, context);