Simple Jira Release Process Automation

jira_tasks.rb

# These tasks should be called from your deploy process or countinious deployment server script, something like below
namespace :production do
  desc 'production deployment'
  task deploy: 'docker:build:push' do |t, args|
    release_notes_and_tagging
  end
end

###
# Update releases.txt file with deployed tickets
# Commit that file with special magic jira commit message
# magic commit messsage updates tickets to #deployed state in jira & adds comments for the release tag they are in
# Tag production release (tag ex: v201708181255)
###
def release_notes_and_tagging
  puts 'tagging release'
  jira_tags = jira_tags_for_release
  stamp = `date "+%Y%m%d%H%M"`.strip
  if jira_tags.any?
    open('releases.txt', 'a') { |f|
      f.puts "\n#{stamp}\n#{jira_tags.join("\n")}"
    }
    `git commit releases.txt -m "#{jira_tags.join(' ')} #deployed these are in release #{stamp}"`
    `git push origin master`
  end
  run_cmd "git tag -a v#{stamp} -m \"release v#{stamp}\""
  run_cmd "git push origin v#{stamp}"
end

###
# Find any Jira tags mention
# exclude commits with WIP (work in progress)
# create a ignore list for any tags that follow revert in commit text
###
def jira_tags_for_release
  last_tag = `git describe --abbrev=0`.strip
  new_commits = `git log #{last_tag}..HEAD`
  jira_tags = new_commits.split("\n")
                  .reject{ |line| line.match(/WIP/i) }
                  .map{ |line| line.scan(/WEB-\d+/i) }.flatten.uniq
  ignore_tags = new_commits.split("\n")
                    .map{ |line| line.scan(/revert.*(WEB-\d+)/i) }.flatten.uniq
  (jira_tags - ignore_tags)
end