Dashing GitHub forks to update widget

README.md

Description

A Dashing widget for displaying GitHub forks that need updating.

See a live demo here.

Usage

Setup the following environment variables:

• GITHUB_USER
• GITHUB_TOKEN: Create an application token
• MANUAL_FORKS: comma-separated list of repos that are not flagged as forks in your GitHub repos but are actually a fork!

What do you mean manual fork?

For example my boxen repo is actually a fork of this repo (just a copy of their repo, not marked as a fork in GitHub). I am not planning on contributing my changes back to the parent repo since they are very specific to me, wanted to subscribe to any updates on our-boxen, and I occasionally choose to make it private if I'm experimenting with some settings.

Dependencies

octokit

Add it to your Dashing application's Gemfile:

gem 'octokit'

and run bundle install.

forks.erb

<li data-row="1" data-col="1" data-sizex="1" data-sizey="2">
  <div data-id="forks" data-view="List" data-unordered="true" data-title="Forks to update" style="background-color:#DA81F5"></div>
</li>

forks.rb

require 'octokit'

def is_in_sync(client, parent, fork)
  parent_commits = parent.rels[:commits].get.data
  latest_parent_commit_date = parent_commits.first.commit.committer.date
  latest_parent_commit_sha = parent_commits.first.sha
  repo_commits = fork.rels[:commits].get.data
  while repo_commits.last.commit.committer.date > latest_parent_commit_date do
    repo_commits = client.last_response.rels[:next].get.data
  end
  repo_shas = repo_commits.map(&:sha)
  repo_shas.index(latest_parent_commit_sha)
end

SCHEDULER.every "30m", first_in: 0 do
  Octokit.auto_paginate = true
  client = Octokit::Client.new(:access_token => ENV["GITHUB_TOKEN"])
  number_prs = 0
  repos = client.repositories(:user => ENV["GITHUB_USER"])
  forks = repos.select do |repo|
    repo.fork
  end

  out_of_date_forks = []
  forks.each do |fork|
    if fork.full_name.include?(ENV["GITHUB_USER"])
      parent = client.repository("#{ENV["GITHUB_USER"]}/#{fork.name}").parent
      unless is_in_sync(client, parent, fork)
        out_of_date_forks << fork.name
      end
    end
  end

  manual_forks = ENV["MANUAL_FORKS"].split(";")
  manual_forks.each do |manual_fork|
    repos = manual_fork.split(",")
    parent = client.repository(repos[0])
    fork = client.repository(repos[1])
    unless is_in_sync(client, parent, fork)
      out_of_date_forks << fork.name
    end
  end

  formatted_forks = {"items" => []}
  out_of_date_forks.each do |out_of_date_fork|
    hash = {"label" => out_of_date_fork}
    formatted_forks["items"] << hash
  end

  send_event("forks", formatted_forks)
end