Parse a changelog and send it via mandrill

.gitignore

*.gem

Gemfile

source 'https://rubygems.org'
gemspec

Gemfile.lock

PATH
  remote: .
  specs:
    mandrillamelo (0.1.0)
      mandrill-api (~> 1.0)
      vandamme (~> 0.0.11)

GEM
  remote: https://rubygems.org/
  specs:
    excon (0.54.0)
    github-markup (1.4.0)
    json (1.8.3)
    mandrill-api (1.0.53)
      excon (>= 0.16.0, < 1.0)
      json (>= 1.7.7, < 2.0)
    redcarpet (3.3.4)
    vandamme (0.0.11)
      github-markup (~> 1.3)
      redcarpet (~> 3.3.2)

PLATFORMS
  ruby

DEPENDENCIES
  bundler (~> 1.13)
  mandrillamelo!

BUNDLED WITH
   1.13.5

mandrillamelo

#!/usr/bin/env ruby
require 'vandamme'
require 'mandrill'

changelog = open('./CHANGELOG.md').read.force_encoding(Encoding::UTF_8)
parser = Vandamme::Parser.new(changelog: changelog, version_header_exp: '(\d\.\d+\.\d+) \(\d{4}-\d{2}-\d{2}\)', format: 'markdown')

last_release = parser.to_html.keys[0]

def send_mail(app_name, release, html_changelog, to, from, api_key, headers = {})
  begin
    mandrill = Mandrill::API.new(api_key)
    message = {
               "tags"=>["changelog"],
               "to"=> to,
               "track_opens"=>nil,
               "headers"=>headers,
               "view_content_link"=>nil,
               "auto_text"=>nil,
               "track_clicks"=>nil,
               "from_name"=>"Changelog",
               "subject"=>"[CHANGELOG] #{app_name} #{release}",
               "html"=>"<h1>#{app_name} Changelog</h1><h2>#{release}</h2>#{html_changelog}",
               "from_email"=>from,
               "preserve_recipients"=>true,
               "auto_html"=>nil,
               "important"=>false}
    async = false
    result = mandrill.messages.send(message, async)


  rescue Mandrill::Error => e
    # Mandrill errors are thrown as exceptions
    puts "A mandrill error occurred: #{e.class} - #{e.message}"
    # A mandrill error occurred: Mandrill::UnknownSubaccountError - No subaccount exists with the id 'customer-123'
    raise
  end
end

to = ENV['RECIPIENTS'].split(',').map{ |mail| {'email'=>mail} }
api_key = ENV['MANDRILL_KEY']
headers = {"Reply-To"=>ENV['CHANGELOG_REPLY_TO']}
from = ENV['CHANGELOG_FROM']
app_name = ENV['CHANGELOG_APP_NAME']

puts send_mail(app_name, last_release, parser.to_html[last_release],
               to, from, api_key, headers)

mandrillamelo.gemspec

Gem::Specification.new do |s|
  s.name        = 'mandrillamelo'
  s.version     = '0.2.0'
  s.summary     = "Changelog sender"
  s.description = "Parse a changelog and send it via mandrill"
  s.authors     = ["Alessio Caiazza"]
  s.email       = 'alessio@chorally.com'
  s.homepage    = 'http://chorally.com/'
  s.license     = 'MIT'
  s.bindir       = '.'
  s.executables << 'mandrillamelo'
  s.add_development_dependency "bundler", "~> 1.13"
  s.add_runtime_dependency 'vandamme', '~> 0.0.11'
  s.add_runtime_dependency 'mandrill-api', '~> 1.0'
end