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Description

An alternative to `bundle gem` with improved documentation, enhanced developer environment setup, code quality defaults, and much more. Uses high quality defaults but can be customized as desired.

Monthly Downloads: 1,000
Programming language: Ruby
License: Apache License 2.0
Latest version: v13.7.0

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README

Gemsmith

Gem Version Code Climate Maintainability Code Climate Test Coverage Circle CI Status

A command line interface for smithing new Ruby gems.

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Table of Contents

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Features

  • Builds a gem skeleton with enhanced Bundler functionality.
  • Uses Refinements Ruby core library enhancements.
  • Uses Versionaire for semantic versioning.
  • Uses Runcom for resource configuration management.
  • Uses Milestoner for consistent project/gem versioning.
  • Uses Pragmater for Ruby source pragma directives.
  • Uses Tocer for README table of contents generation.
  • Supports Bundler Audit.
  • Supports Circle CI.
  • Supports Code Climate.
  • Supports Git Cop.
  • Supports GitHub.
  • Supports Guard.
  • Supports Pry.
  • Supports Reek.
  • Supports RSpec.
  • Supports Rubocop.
  • Supports Rubocop RSpec.
  • Supports Ruby on Rails.
  • Supports RubyGems Security.
  • Supports Thor.
  • Supports common settings and a structured layout for building gems.
  • Supports publishing to public or private gem servers.
  • Provides common documentation:
    • [README](README.md)
    • [CHANGES](CHANGES.md)
    • [CONTRIBUTING](CONTRIBUTING.md)
    • [CODE OF CONDUCT](CODE_OF_CONDUCT.md)
    • [LICENSE](LICENSE.md)
  • Aids in viewing source code of semantically versioned gems within your favorite editor.
  • Aids in viewing documentation of semantically versioned within your default browser.

Screencasts

asciicast

Requirements

  1. A UNIX-based system.
  2. Ruby 2.6.x.
  3. RubyGems.
  4. Bundler.

Setup

Install

Type the following to install:

gem install gemsmith

Configuration

This gem can be configured via a global configuration:

~/.config/gemsmith/configuration.yml

It can also be configured via XDG environment variables.

The default configuration is as follows:

:year: <current year>
:github_user: "<Git config GitHub user>",
:gem:
  :label: "Undefined"
  :name: "undefined"
  :path: "undefined"
  :class: "Undefined"
  :platform: "Gem::Platform::RUBY"
  :url: "https://github.com/<author>/<gem name>"
  :license: "MIT"
:author:
  :name: "<Git config user name>"
  :email: "<Git config user email>"
  :url: ""
:organization:
  :name: ""
  :url: ""
:versions:
  :ruby: "<current Ruby version>"
  :rails: "5.1"
:generate:
  :bundler_audit: true
  :circle_ci: false
  :cli: false
  :code_climate: false
  :engine: false
  :git_cop: true
  :git_hub: true
  :guard: true
  :pry: true
  :reek: true
  :rspec: true
  :rubocop: true
  :security: false
:publish:
  :sign: false

Feel free to take this default configuration, modify, and save as your own custom configuration.yml.

Existing Gems

If you have gems that were not originally crafted by Gemsmith, you can add Gemsmith support to them by modifying the following files:

Add the following to your gem's *.gemspec file:

spec.add_development_dependency "gemsmith"

Replace or add a modified version of the following to your gem's Rakefile:

# frozen_string_literal: true

begin
  require "gemsmith/rake/setup"
rescue LoadError => error
  puts error.message
end

NOTE: Ensure require "bundler/gem_tasks" is removed as Gemsmith replaces Bundler functionality.

With those changes, you can leverage the benefits of Gemsmith within your existing gem.

Usage

Command Line Interface (CLI)

From the command line, type: gemsmith --help

gemsmith -c, [--config]        # Manage gem configuration.
gemsmith -g, [--generate=GEM]  # Generate new gem.
gemsmith -h, [--help=COMMAND]  # Show this message or get help for a command.
gemsmith -o, [--open=GEM]      # Open a gem in default editor.
gemsmith -r, [--read=GEM]      # Open a gem in default browser.
gemsmith -v, [--version]       # Show gem version.

For more gem generation options, type: gemsmith --help --generate

[--bundler-audit], [--no-bundler-audit]  # Add Bundler Audit support.
                                         # Default: true
[--circle-ci], [--no-circle-ci]          # Add Circle CI support.
[--cli], [--no-cli]                      # Add CLI support.
[--code-climate], [--no-code-climate]    # Add Code Climate support.
[--engine], [--no-engine]                # Add Rails Engine support.
[--git-cop], [--no-git-cop]              # Add Git Cop support.
                                         # Default: true
[--git-hub], [--no-git-hub]              # Add GitHub support.
                                         # Default: true
[--guard], [--no-guard]                  # Add Guard support.
                                         # Default: true
[--pry], [--no-pry]                      # Add Pry support.
                                         # Default: true
[--reek], [--no-reek]                    # Add Reek support.
                                         # Default: true
[--rspec], [--no-rspec]                  # Add RSpec support.
                                         # Default: true
[--rubocop], [--no-rubocop]              # Add Rubocop support.
                                         # Default: true
[--security], [--no-security]            # Add security support.

Rake

Once a gem skeleton has been created, the following tasks are available (i.e. bundle exec rake -T):

rake build                 # Build example-0.1.0.gem package
rake bundle:audit          # Updates the ruby-advisory-db then runs bundle-audit
rake clean                 # Clean gem artifacts
rake code_quality          # Run code quality checks
rake git_cop               # Run Git Cop
rake install               # Install example-0.1.0.gem package
rake publish               # Build, tag as 0.1.0 (unsigned), and push example-0.1.0.gem to RubyGems
rake reek                  # Check for code smells
rake rubocop               # Run RuboCop
rake rubocop:auto_correct  # Auto-correct RuboCop offenses
rake spec                  # Run RSpec code examples
rake toc                   # Update Table of Contents (README)

NOTE: Some tasks might differ depending on what options you enabled/disabled during gem generation.

When building/testing your gem locally, a typical workflow is:

  1. bundle exec rake install
  2. Test your gem locally.
  3. Repeat until satisfied.

When satified with your gem, builds are green, and ready to publish, run:

bundle exec rake publish

Tests

To test, run:

bundle exec rake

Security

Git Signing Key

To securely sign your Git tags, install and configure GPG:

brew install gpg
gpg --gen-key

When creating your GPG key, choose these settings:

  • Key kind: RSA and RSA (default)
  • Key size: 4096
  • Key validity: 0
  • Real Name: <your name>
  • Email: <your email>
  • Passphrase: <your passphrase>

To obtain your key, run the following and take the part after the forward slash:

gpg --list-keys | grep pub

Add your key to your global Git configuration in the [user] section. Example:

[user]
  signingkey = <your GPG key>

Now, when publishing your gems with Gemsmith (i.e. bundle exec rake publish), signing of your Git tag will happen automatically. You will be prompted for the GPG Passphrase each time but that is to be expected.

Gem Certificates

To create a certificate for your gems, run the following:

cd ~/.ssh
gem cert --build you@example.com
chmod 600 gem-*.pem

The resulting *.pem key files can be referenced via the :private_key: and :public_key: keys within the ~/.gemsmithrc file.

To learn more about gem certificates, read about RubyGems Security.

Private Gem Servers

By default, the following Rake task will publish your gem to RubyGems:

bundle exec rake publish

You can change this behavior by adding metadata to your gemspec that will allow the Rake tasks, mentioned above, to publish your gem to an alternate/private gem server instead. This can be done by updating your gem specification and RubyGems credentials.

Gem Specification Metadata

Add the following metadata to your gemspec:

Gem::Specification.new do |spec|
  spec.metadata = {
    "allowed_push_key" => "example_key",
    "allowed_push_host" => "https://gems.example.com"
  }
end

The gemspec metadata keys and values must be strings per the RubyGems Specification. Each key represents the following:

  • allowed_push_key: Provides a reference (look up) to the key defined the RubyGems credentials file so that sensitive credentials are not used within your gemspec.
  • allowed_push_host: Provides the URL of the private gem server to push your gem to.

Gem Credentials

With your gem specification metadata established, you are ready to publish your gem to a public or private server. If this is your first time publishing a gem and no gem credentials have been configured, you'll be prompted for them. Gem credentials are stored in the RubyGems ~/.gem/credentials file. From this point forward, future gem publishing will use your stored credentials instead. Multiple credentials can be stored in the ~/.gem/credentials file. Example:

---
:rubygems_api_key: 2a0b460650e67d9b85a60e183defa376
:example_key: "Basic dXNlcjpwYXNzd29yZA=="

Should you need to delete a credential (due to a bad login/password for example), you can open the ~/.gem/credentials in your default editor and remove the line(s) you don't need. Upon next publish of your gem, you'll be prompted for the missing credentials.

Promotion

Once your gem is released, let the world know about your accomplishment by posting an update to these sites:

Troubleshooting

When running bundle exec rake install or bundle exec rake publish with modified, staged, or uncommitted Git changes, the rake task will throw an error to this effect. When this occurs, it is recommended that you commit your changes or stash them before proceeding.

Versioning

Read Semantic Versioning for details. Briefly, it means:

  • Major (X.y.z) - Incremented for any backwards incompatible public API changes.
  • Minor (x.Y.z) - Incremented for new, backwards compatible, public API enhancements/fixes.
  • Patch (x.y.Z) - Incremented for small, backwards compatible, bug fixes.

Code of Conduct

Please note that this project is released with a [CODE OF CONDUCT](CODE_OF_CONDUCT.md). By participating in this project you agree to abide by its terms.

Contributions

Read [CONTRIBUTING](CONTRIBUTING.md) for details.

License

Copyright 2011 Alchemists. Read [LICENSE](LICENSE.md) for details.

History

Read [CHANGES](CHANGES.md) for details.

Credits

Developed by Brooke Kuhlmann at Alchemists.


*Note that all licence references and agreements mentioned in the Gemsmith README section above are relevant to that project's source code only.