Deliver tracker stories finished since last staging deploy

deliver_tracker_stories.rb

#!/usr/bin/env ruby
require 'pivotal-tracker'

TRACKER_TOKEN = ENV.fetch("TRACKER_TOKEN")
TRACKER_PROJECT_ID = ENV.fetch("TRACKER_PROJECT_ID")

PivotalTracker::Client.token = TRACKER_TOKEN
PivotalTracker::Client.use_ssl = true

project = PivotalTracker::Project.find(TRACKER_PROJECT_ID)

def is_deliverable?(story)
  story.current_state == "finished" && ["bug", "feature"].include?(story.story_type)
end

def finished_stories_since_last_deploy
  staging_deploy_tag = `git tag | grep staging | tail -n1`.strip
  last_staging_deploy_tag = `git tag | grep staging | tail -n2 | head -n1`.strip
  git_log = CGI.escape(`git log #{last_staging_deploy_tag}..#{staging_deploy_tag}`)
  git_log.scan(/%5B(finish|fix|deliver|complete)[a-z]*\+%23([0-9]+)%5D/i).each do |match|
    story_id = match[1]
    yield(story_id)
  end
end

finished_stories_since_last_deploy do |story_id|
  story = project.stories.find(story_id)
  if story
    if is_deliverable?(story)
      puts "Marking #{story.id} as delivered."
      story.notes.create(text: "Delivered by staging deploy script.")
      story.update(current_state: "delivered")
    else
      puts "Leaving #{story_id} alone."
    end
  else
    puts "No story with #{story_id} found."
  end
end