YNGJ-1058: Create Aether Observatory (#297)

Extracting `AetherObservatory` from `Talkbox`. Internal PubSub system
base upon `ActiveSupport::Notifications`

.github/workflows/aether_observatory.yml

@@ -0,0 +1,14 @@
+name: aether_observatory
+
+on:
+  push:
+
+jobs:
+  ruby:
+    uses: powerhome/github-actions-workflows/.github/workflows/ruby-gem.yml@main
+    with:
+      package: ${{ github.workflow }}
+      workdir: "packages/${{ github.workflow }}"
+      gemfiles: "['gemfiles/rails_6_0.gemfile','gemfiles/rails_6_1.gemfile','gemfiles/rails_7_0.gemfile','gemfiles/rails_7_1.gemfile']"
+      ruby: '["3.0","3.3"]'
+    secrets: inherit

docs/README.md

@@ -6,6 +6,10 @@ At [Power Home Remodeling](https://powerhrg.com/), we have created foundational
 
 power-tools currently contains the following packages (marked for release to rubygems 💎 or npm ☕️):
 
+[aether_observatory](https://github.com/powerhome/power-tools/blob/main/packages/aether_observatory/docs/README.md) 💎
+
+AetherObservatory provides an event broadcast and subscription system based around ActiveSupport::Notifications.
+
 [api_chai](https://github.com/powerhome/power-tools/blob/main/packages/api_chai/docs/README.md) 💎
 
 ApiChai provides a simple integration with net-http around a lightweight layer for reporting and graceful error handling.

packages/aether_observatory/.rubocop.yml

@@ -0,0 +1,9 @@
+require:
+  - rubocop-powerhome
+
+AllCops:
+  TargetRubyVersion: 3.0
+
+Metrics/MethodLength:
+  Exclude:
+    - spec/**/*_spec.rb

packages/aether_observatory/Appraisals

@@ -0,0 +1,21 @@
+# frozen_string_literal: true
+
+appraise "rails-6-0" do
+  gem "activemodel", "~> 6.0.6"
+  gem "activesupport", "~> 6.0.6"
+end
+
+appraise "rails-6-1" do
+  gem "activemodel", "~> 6.1.7"
+  gem "activesupport", "~> 6.1.7"
+end
+
+appraise "rails-7-0" do
+  gem "activemodel", "~> 7.0.8"
+  gem "activesupport", "~> 7.0.8"
+end
+
+appraise "rails-7-1" do
+  gem "activemodel", "~> 7.1.3"
+  gem "activesupport", "~> 7.1.3"
+end

packages/aether_observatory/Gemfile

@@ -0,0 +1,7 @@
+# frozen_string_literal: true
+
+source "https://rubygems.org"
+
+gemspec
+
+gem "rubocop-powerhome", path: "../rubocop-powerhome"

packages/aether_observatory/Rakefile

@@ -0,0 +1,26 @@
+#!/usr/bin/env rake
+
+# frozen_string_literal: true
+
+begin
+  require "bundler/setup"
+rescue LoadError
+  puts "You must `gem install bundler` and `bundle install` to run rake tasks"
+end
+Bundler::GemHelper.install_tasks
+
+require "rspec/core/rake_task"
+RSpec::Core::RakeTask.new(:spec)
+
+require "rubocop/rake_task"
+RuboCop::RakeTask.new(:rubocop)
+
+require "yard"
+YARD::Rake::YardocTask.new do |t|
+  t.files = ["lib/**/*.rb"]
+  t.options = [
+    "--no-private",
+  ]
+end
+
+task default: %i[rubocop spec]

packages/aether_observatory/aether_observatory.gemspec

@@ -0,0 +1,44 @@
+# frozen_string_literal: true
+
+require_relative "lib/aether_observatory/version"
+
+Gem::Specification.new do |spec|
+  spec.name = "aether_observatory"
+  spec.version = AetherObservatory::VERSION
+  spec.authors = ["Terry Finn", "Justin Stanczak"]
+  spec.email = ["[email protected]", "[email protected]"]
+
+  spec.summary = "Aether Observatory"
+  spec.description = "Aether Observatory provides an event broadcast system."
+  spec.homepage = "https://github.com/powerhome/power-tools"
+  spec.license = "MIT"
+  spec.required_ruby_version = ">= 3.0"
+
+  spec.metadata["rubygems_mfa_required"] = "true"
+  spec.metadata["homepage_uri"] = spec.homepage
+  spec.metadata["source_code_uri"] = spec.homepage
+  spec.metadata["changelog_uri"] = "#{spec.homepage}/blob/main/packages/aether_observatory/docs/CHANGELOG.md"
+
+  # Specify which files should be added to the gem when it is released.
+  # The `git ls-files -z` loads the files in the RubyGem that have been added into git.
+  spec.files = Dir.chdir(__dir__) do
+    `git ls-files -z`.split("\x0").reject do |f|
+      (f == __FILE__) || f.match(%r{\A(?:(?:bin|test|spec|features)/|\.(?:git|travis|circleci)|appveyor)})
+    end
+  end
+  spec.require_paths = ["lib"]
+
+  spec.add_dependency "activemodel", ">= 6.0.6.1"
+  spec.add_dependency "activesupport", ">= 6.0.6.1"
+  spec.add_development_dependency "appraisal", "~> 2.5.0"
+
+  spec.add_development_dependency "bundler", "~> 2.1"
+  spec.add_development_dependency "license_finder", "~> 7.0"
+  spec.add_development_dependency "pry", ">= 0.14"
+  spec.add_development_dependency "pry-byebug", "3.10.1"
+  spec.add_development_dependency "rake", "~> 13.0"
+  spec.add_development_dependency "rspec", "~> 3.0"
+  spec.add_development_dependency "simplecov", "0.15.1"
+  spec.add_development_dependency "yard", "0.9.21"
+  spec.metadata["rubygems_mfa_required"] = "true"
+end

packages/aether_observatory/doc/dependency_decisions.yml

@@ -0,0 +1,3 @@
+---
+- - :inherit_from
+  - https://raw.githubusercontent.com/powerhome/oss-guide/master/license_rules.yml

packages/aether_observatory/docs/CHANGELOG.md

@@ -0,0 +1,3 @@
+## [0.0.1] - 2024-12-06
+
+- Extracts AetherObservatory from Talkbox engine.