Ricardo Sawir sawirricardo

Contract Killer

The popular open-source contract for web professionals by Stuff & Nonsense

Originally published: 23rd December 2008
Revised date: March 15th 2016
Revised by Bytes Unlimited : Feb 3rd 2020

ffmpeg

Converting Audio into Different Formats / Sample Rates

Minimal example: transcode from MP3 to WMA:
ffmpeg -i input.mp3 output.wma

You can get the list of supported formats with:
ffmpeg -formats

Convert WAV to MP3, mix down to mono (use 1 audio channel), set bit rate to 64 kbps and sample rate to 22050 Hz:

Rails Authentication from Scratch - Step by Step

Prerequisites

Clone the Cloud9 thibaudgg/rails-weblog workspace. Go to https://c9.io/new/clone and then choose the "MAS-RAD / Ruby on Rails" team, click on the "Clone workspace" tab, then choose the "thibaudgg/rails-weblog" workspace.
Seed the database, this will create some posts and comments (see db/seeds.rb):

rails db:seed

A curated list of AWS resources to prepare for the AWS Certifications

A curated list of awesome AWS resources you need to prepare for the all 5 AWS Certifications. This gist will include: open source repos, blogs & blogposts, ebooks, PDF, whitepapers, video courses, free lecture, slides, sample test and many other resources.

Ruby on Rails Cheatsheet

Architecture

Create a new application

Install the Rails gem if you haven't done so before

go run -ldflags "-s \
  -X main.Version=1.0.2 \
  -X main.BuildTime=`TZ=UTC date -u '+%Y-%m-%dT%H:%M:%SZ'` \
  -X main.GitHash=`git rev-parse HEAD`" \
  myapp.go

Adopted from www.atatus.com

	<?php

	namespace App\Providers;

	use Illuminate\Support\Collection;
	use Illuminate\Pagination\LengthAwarePaginator;

	class AppServiceProvider extends ServiceProvider
	{
	public function boot()

	# copy/import data from heroku postgres to localhost pg database

	# useful for copying admin's work on live site into local database to reproduce errors
	# https://devcenter.heroku.com/articles/heroku-postgres-import-export

	# take heroku pg snapshot and download
	heroku pg:backups:capture
	heroku pg:backups:download

	# load the dump into local postgres database, assuming $DATABASE_URL set locally

	package util

	import (
	"math"
	"strings"
	)

	// StrPad returns the input string padded on the left, right or both sides using padType to the specified padding length padLength.
	//
	// Example:

	==========================
	How Software Companies Die
	==========================
	- Orson Scott Card

	The environment that nurtures creative programmers kills management and
	marketing types - and vice versa.

	Programming is the Great Game. It consumes you, body and soul. When
	you're caught up in it, nothing else matters. When you emerge into