GitHub API GraphQL - list stale branches

github-api-graphql-stale-branches.rb

require 'graphlient'

client = Graphlient::Client.new('https://api.github.com/graphql',
  headers: {
    'Authorization' => "Bearer #{ ENV['GITHUB_API_TOKEN']}"
  },
  http_options: {
    read_timeout: 20,
    write_timeout: 30
  }
)

repo_owner = ENV['GITHUB_REPO_OWNER']
repo_name = ENV['GITHUB_REPO_NAME']


# query list of branches w/ last updated date & username
result = client.query <<-GRAPHQL
  query {
    repository(owner: "#{repo_owner}", name: "#{repo_name}") {
      refs(first: 100, refPrefix: "refs/heads/") {
        nodes {
          name
          target {
            ... on Commit {
              committedDate
              author { user { login } }
            }
          }
        }
      }
    }
  }
GRAPHQL

puts result.data.repository.to_s

# list branches updated more than 12 month ago
require 'date'
branches_by_user = result.data.repository.refs.nodes.
  reject { |b| b.name =~ /^master|develop$/ }.
  select { |b| Date.parse(b.target.committed_date) < (Date.today << 12) }.
  sort_by { |b| b.target.committed_date }.
  group_by { |b| if b.target.author.user then b.target.author.user.login else 'no-author' end }
  
branches_by_user.each do |u, branches|
  puts "#{u} (#{branches.size})"
  branches.each do |b|
    puts "#{b.name} on #{b.target.committed_date}"
  end
  puts ''
end

Updated to use a different, not deprecated, graphql client