dgilperez

# MIT License

# Copyright (c) 2016 Chandler Abraham

# Permission is hereby granted, free of charge, to any person obtaining a copy
# of this software and associated documentation files (the "Software"), to deal
# in the Software without restriction, including without limitation the rights
# to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
# copies of the Software, and to permit persons to whom the Software is
# furnished to do so, subject to the following conditions:

dgilperez

from slacker import Slacker
import json
import argparse
import os
import shutil
import copy
from datetime import datetime

# This script finds all channels, private channels and direct messages
# that your user participates in, downloads the complete history for

dgilperez

Extracting Emoji From Slack!

Slack doesn't provide an easy way to extract custom emoji from a team. (Especially teams with thousands of custom emoji) This Gist walks you through a relatively simple approach to get your emoji out.

If you're an admin of your own team, you can get the list of emoji directly using this API: https://api.slack.com/methods/emoji.list. Once you have it, skip to Step 3

HOWEVER! This gist is intended for people who don't have admin access, nor access tokens for using that list.

Follow along...

dgilperez

Pry Cheat Sheet

• Youtube Tutorial 2013

Command Line

• pry -r ./config/app_init_file.rb - load your app into a pry session (look at the file loaded by config.ru)
• pry -r ./config/environment.rb - load your rails into a pry session

Debugger

dgilperez

#!/usr/bin/env ruby

# Do sanity check on imported data by comparing the number of rows in each table

require 'pg'
require 'mysql2'

tables = %w( { list the tables to compare here  })

p = PG.connect(dbname:'canvas', host: 'postgres.ocad.ca', user: 'canvas_user')

dgilperez

(my response to https://twitter.com/apotonick/status/717105889845624832)

I haven't yet came across readily available resources for large-scale application architecture for Elixir apps. I found Programming Phoenix to be a good start for that though. And there's ~30 years of knowledge in the Erlang land :)

For web apps, I found the abstractions that Elixir/Phoenix provides to be really helpful. Indeed, the list below is somewhat ORM focused.

In the small, Ecto.Schema, Ecto.Query, Ecto.Changeset, and Phoenix.View allow me to build highly composable and side-effect free modules. I can have many schemas, changesets and queries all interacting with the same underlying DB table(s) if I want to. Most of the side-effects (through Ecto.Repo for DBs) are usually in the Phoenix.Controller (or other Plugs).

dgilperez

Installing a Gem on Heroku from a Private GitHub Repo

Sometimes you want to use a gem on Heroku that is in a private repository on GitHub.

Using git over http you can authenticate to GitHub using basic authentication. However, we don't want to embed usernames and passwords in Gemfiles. Instead, we can use authentication tokens.

This method does not add your OAuth token to Gemfile.lock. It uses bundle config to store your credentials, and allows you to configure Heroku to use environment variables when deploying.

1. Generate an OAuth token from GitHub

dgilperez

# 1.install gource using HomeBrew
brew install gource

# 2.install avconv
git clone git://git.libav.org/libav.git
cd libav 
# it will take 3-5 minutes to complie, be patient.
./configure --disable-yasm
make && make install 

dgilperez

# Say you want to look up the attrs of a Stripe Event for logging to your internal database.
  attrs = begin
            retriable(Stripe::APIConnectionError, Stripe::APIError, max: 25) do
              # ... retrieve attrs from the Stripe event here...
            end
          rescue Stripe::APIConnectionError, Stripe::APIError
            # We're inside an SQS queue block
            throw :skip_delete # we'll just have to wait on this event, come back later
          rescue Stripe::Error
            notify $!

dgilperez

# also you need to uncomment next line in Capfile
# require 'capistrano/rails/assets'

namespace :deploy do
  namespace :assets do

    Rake::Task['deploy:assets:precompile'].clear_actions

    desc 'Precompile assets locally and upload to servers'
    task :precompile do