jashkenas

Spurred by recent events (https://news.ycombinator.com/item?id=8244700), this is a quick set of jotted-down thoughts about the state of "Semantic" Versioning, and why we should be fighting the good fight against it.

For a long time in the history of software, version numbers indicated the relative progress and change in a given piece of software. A major release (1.x.x) was major, a minor release (x.1.x) was minor, and a patch release was just a small patch. You could evaluate a given piece of software by name + version, and get a feeling for how far away version 2.0.1 was from version 2.8.0.

But Semantic Versioning (henceforth, SemVer), as specified at http://semver.org/, changes this to prioritize a mechanistic understanding of a codebase over a human one. Any "breaking" change to the software must be accompanied with a new major version number. It's alright for robots, but bad for us.

SemVer tries to compress a huge amount of information — the nature of the change, the percentage of users that wil

MrDys

/* If you've ever had the need to link directly to an open modal window with Bootstrap, here's a quick and easy way to do it:

Make sure your modal has an id:

<div class="modal" id="myModal" ... >

Then stick this bit of Javascript at at the end of your document:
 */

$(document).ready(function() {

Envek

# Full list of Russian Federation time zones with helper to get this list.
# Place this file in config/initializers/timezones.ru.rb

class ActiveSupport::TimeZone
  @country_zones  = ThreadSafe::Cache.new

  def self.country_zones(country_code)
    code = country_code.to_s.upcase
    @country_zones[code] ||=
      TZInfo::Country.get(code).zone_identifiers.select do |tz_id|

stevedomin

defmodule MyBlog.Repo.Migrations.CreatePost do
  use Ecto.Migration

  def change do
    create table(:posts, primary_key: false) do
      add :id, :uuid, primary_key: true
      add :body, :string
      add :word_count, :integer

      timestamps

timcheadle

Make /robots.txt aware of the Rails environment

You probably don't want Google crawling your development staging app. Here's how to fix that.

$ mv public/robots.txt config/robots.production.txt
$ cp config/robots.production.txt config/robots.development.txt

Now edit config/routes.rb to add a route for /robots.txt, and add the controller code.

januszm

# Currently (2017/2018) it's not possible to change the Ruby 'minor' version (eg. 2.3 => 2.4) using the web console
# However, it's possible using the 'awscli' tool.

brew install awscli # pip install awscli
aws elasticbeanstalk update-environment \
  --solution-stack-name "64bit Amazon Linux 2017.09 v2.6.1 running Ruby 2.4 (Puma)" \
  --environment-name "myappenv1" --region "us-east-2" \
  --version-label "app-1234-210000_120123"

# For Amazon Linux 2

stefano-bortolotti

##Preview

Description

Display your iOS App Rating info. It uses iTunes Store website as the source.

##Usage

kpheasey

Add inbound firewall rule for TCP 2222

• Windows 10 has 2 new services, SSH Server Proxy and SSH Server Broker which will already be bound to port 22
• Do not allow public connection on this rule, WSL is not proven safe

ConEmu

Add as cmd startup with bash.exe --login

Install the SSH server and some Rails essentials libraries in bash

sudo apt-get update && sudo apt-get upgrade -y

willb

#!/usr/lib/env ruby

# Acquires a shared lock on a SQLite database file and copies it to a backup
# usage:  backup-db.rb DBFILE.db BACKUPFILE.db
# author:  William Benton (willb@redhat.com)
# Public domain.

require 'sqlite3'
require 'fileutils'

alexanderzobnin

#!/usr/bin/python

import os
import hashlib

mypasswords = [
  "doors",
  "d00rs",
  "Morrison",
  "Hotel"