Automate release notes

.github/workflows/scripts/parse_changelog.rb

@@ -0,0 +1,49 @@
+#!/usr/bin/ruby
+# This file is distributed under New Relic's license terms.
+# See https://github.com/newrelic/newrelic-ruby-agent/blob/main/LICENSE for complete details.
+# frozen_string_literal: true
+
+require 'date'
+require_relative '../../../lib/new_relic/version'
+
+DIVIDER = '---'
+SUPPRORT_STATEMENT = "<Callout variant=\"important\">
+We recommend updating to the latest agent version as soon as it's available. If you can't upgrade to the latest version, update your agents to a version at most 90 days old. Read more about [keeping agent up to date](/docs/new-relic-solutions/new-relic-one/install-configure/update-new-relic-agent/).
+
+See the New Relic Ruby agent [EOL policy](https://docs.newrelic.com/docs/apm/agents/ruby-agent/getting-started/ruby-agent-eol-policy/) for information about agent releases and support dates.
+</Callout>"
+
+changelog = File.read('CHANGELOG.md')
+latest_entry = changelog.split('##')[1].prepend('##')
+titles = latest_entry.scan(/^- \*{2}(.*?)\*{2}$/).flatten # Match strings between sets of '**'
+metadata = Hash.new { |h, k| h[k] = [] }
+
+titles.each do |t|
+  category = t.split(':').first
+  case category
+  when 'Feature'
+    metadata[:features] << t.delete_prefix('Feature: ')
+  when 'Bugfix'
+    metadata[:bugs] << t.delete_prefix('Bugfix: ')
+  when 'Security'
+    metadata[:security] << t.delete_prefix('Security: ')
+  end
+end
+
+frontmatter = [
+  DIVIDER,
+  'subject: Ruby agent',
+  "date: #{Date.today}",
+  "version: #{NewRelic::VERSION::STRING}",
+  "downloadLink: https://rubygems.org/downloads/newrelic_rpm-#{NewRelic::VERSION::STRING}.gem",
+  "features: #{metadata[:feature]}",
+  "bugs: #{metadata[:bugs]}",
+  "security: #{metadata[:security]}",
+  DIVIDER,
+  '',
+  SUPPRORT_STATEMENT,
+  '',
+  latest_entry
+]
+
+File.write("ruby-agent-#{NewRelic::VERSION::STRING.tr('.', '-')}.mdx", frontmatter.join("\n"))