[PP-7517] Initial gem setup with CI, release and dependency management

[AgaDufrat]

• Gem setup:

  • govuk_content_item_loader.gemspec to define gem specifications (name, version, dependencies)
  • Gemfile for managing dependencies
  • CHANGELOG.md to make it easier for users and contributors to see precisely what notable changes have been made between each release (or version) of the project
  • Rakefile to facilitate common tasks
  • README.md to provide an overview of the gem, later installation instructions and usage examples
  • LICENCE file to specify the licensing terms of the gem in line with https://gds-way.digital.cabinet-office.gov.uk/manuals/licensing.html#specifying-the-licence

• Main library files:

  • lib/: Directory to include the core gem code.
    • lib/govuk_content_item_loader/: For the gem's primary functionality.
      • version.rb: Defines the gem version.
    • govuk_content_item_loader.rb: Main class/module implementing the functionality.

• RSpec setup for testing incl. simplecov for test coverage

• GitHub workflows:

  • .github/workflows/ci.yml: Continuous integration setup for running tests and linting.
  • .github/workflows/autorelease.yml: Automates the gem release process.
  • .github/workflows/actionlint.yml: Lints GitHub Actions workflows to ensure consistency.
  • .github/workflows/gem-bump-checker.yml: Checks for version bumps in a PR to ensure timely releases.

• Dependency management:

  • .github/dependabot.yml: Configuration file for Dependabot to automatically create pull requests for dependency updates.
  • .govuk_dependabot_merger.yml: Configuration for the custom Dependabot merger tool to automate merging of approved dependency updates.

• Development setup:

  • .gitignore: Specifies files and directories to be ignored by Git.
  • .rspec: RSpec configuration file for running tests.
  • .rubocop.yml: RuboCop configuration for code style enforcement.
  • .ruby-version: Specifies the Ruby version used for this gem.

[brucebolt]

Reading our docs, I think this needs to be the latest version of 3.2.*, as the required_ruby_version is >=3.2.

[AgaDufrat]

Good point, thanks! I set it to 3.2.9.

[brucebolt]

All looks good to me 👍