Contributing

Bug reports and pull requests are welcome on CodeBerg, GitLab, or GitHub.
This project should be a safe, welcoming space for collaboration, so contributors agree to adhere to
the code of conduct.

To submit a patch, please fork the project, create a patch with tests, and send a pull request.

Remember to Keep A Changelog if you make changes.

Help out!

Take a look at the reek list which is the file called REEK and find something to improve.

Follow these instructions:

  1. Fork the repository
  2. Create a feature branch (git checkout -b my-new-feature)
  3. Make some fixes.
  4. Commit changes (git commit -am 'Added some feature')
  5. Push to the branch (git push origin my-new-feature)
  6. Make sure to add tests for it. This is important, so it doesn’t break in a future release.
  7. Create new Pull Request.

Executables vs Rake tasks

Executables shipped by kettle-dev can be used with or without generating the binstubs.
They will work when kettle-dev is installed globally (i.e., gem install kettle-dev) and do not require that kettle-dev be in your bundle.

  • kettle-changelog
  • kettle-commit-msg
  • kettle-dev-setup
  • kettle-dvcs
  • kettle-pre-release
  • kettle-readme-backers
  • kettle-release

However, the rake tasks provided by kettle-dev do require kettle-dev to be added as a development dependency and loaded in your Rakefile.
See the full list of rake tasks in head of Rakefile

Gemfile

group :development do
  gem "kettle-dev", require: false
end

Rakefile

# Rakefile
require "kettle/dev"

Environment Variables for Local Development

Below are the primary environment variables recognized by stone_checksums (and its integrated tools). Unless otherwise noted, set boolean values to the string “true” to enable.

General/runtime

  • DEBUG: Enable extra internal logging for this library (default: false)
  • REQUIRE_BENCH: Enable require_bench to profile requires (default: false)
  • CI: When set to true, adjusts default rake tasks toward CI behavior

Coverage (kettle-soup-cover / SimpleCov)

  • K_SOUP_COV_DO: Enable coverage collection (default: true in .envrc)
  • K_SOUP_COV_FORMATTERS: Comma-separated list of formatters (html, xml, rcov, lcov, json, tty)
  • K_SOUP_COV_MIN_LINE: Minimum line coverage threshold (integer, e.g., 100)
  • K_SOUP_COV_MIN_BRANCH: Minimum branch coverage threshold (integer, e.g., 100)
  • K_SOUP_COV_MIN_HARD: Fail the run if thresholds are not met (true/false)
  • K_SOUP_COV_MULTI_FORMATTERS: Enable multiple formatters at once (true/false)
  • K_SOUP_COV_OPEN_BIN: Path to browser opener for HTML (empty disables auto-open)
  • MAX_ROWS: Limit console output rows for simplecov-console (e.g., 1)
    Tip: When running a single spec file locally, you may want K_SOUP_COV_MIN_HARD=false to avoid failing thresholds for a partial run.

GitHub API and CI helpers

  • GITHUB_TOKEN or GH_TOKEN: Token used by ci:act and release workflow checks to query GitHub Actions status at higher rate limits

Releasing and signing

  • SKIP_GEM_SIGNING: If set, skip gem signing during build/release
  • GEM_CERT_USER: Username for selecting your public cert in certs/<USER>.pem (defaults to $USER)
  • SOURCE_DATE_EPOCH: Reproducible build timestamp. kettle-release will set this automatically for the session.

Git hooks and commit message helpers (exe/kettle-commit-msg)

  • GIT_HOOK_BRANCH_VALIDATE: Branch name validation mode (e.g., jira) or false to disable
  • GIT_HOOK_FOOTER_APPEND: Append a footer to commit messages when goalie allows (true/false)
  • GIT_HOOK_FOOTER_SENTINEL: Required when footer append is enabled — a unique first-line sentinel to prevent duplicates
  • GIT_HOOK_FOOTER_APPEND_DEBUG: Extra debug output in the footer template (true/false)

For a quick starting point, this repository’s .envrc shows sane defaults, and .env.local can override them locally.

Appraisals

From time to time the appraisal2 gemfiles in gemfiles/ will need to be updated.
They are created and updated with the commands:

bin/rake appraisal:update

When adding an appraisal to CI, check the runner tool cache to see which runner to use.

The Reek List

Take a look at the reek list which is the file called REEK and find something to improve.

To refresh the reek list:

bundle exec reek > REEK

Run Tests

To run all tests

bundle exec rake test

Spec organization (required)

  • One spec file per class/module. For each class or module under lib/, keep all of its unit tests in a single spec file under spec/ that mirrors the path and file name exactly: lib/kettle/dev/release_cli.rb -> spec/kettle/dev/release_cli_spec.rb.
  • Never add a second spec file for the same class/module. Examples of disallowed names: *_more_spec.rb, *_extra_spec.rb, *_status_spec.rb, or any other suffix that still targets the same class. If you find yourself wanting a second file, merge those examples into the canonical spec file for that class/module.
  • Exception: Integration specs that intentionally span multiple classes. Place these under spec/integration/ (or a clearly named integration folder), and do not directly mirror a single class. Name them after the scenario, not a class.
  • Migration note: If a duplicate spec file exists, move all examples into the canonical file and delete the duplicate. Do not leave stubs or empty files behind.

Lint It

Run all the default tasks, which includes running the gradually autocorrecting linter, rubocop-gradual.

bundle exec rake

Or just run the linter.

bundle exec rake rubocop_gradual:autocorrect

For more detailed information about using RuboCop in this project, please see the RUBOCOP.md guide. This project uses rubocop_gradual instead of vanilla RuboCop, which requires specific commands for checking violations.

Important: Do not add inline RuboCop disables

Never add # rubocop:disable ... / # rubocop:enable ... comments to code or specs (except when following the few existing rubocop:disable patterns for a rule already being disabled elsewhere in the code). Instead:

  • Prefer configuration-based exclusions when a rule should not apply to certain paths or files (e.g., via .rubocop.yml).
  • When a violation is temporary and you plan to fix it later, record it in .rubocop_gradual.lock using the gradual workflow:
    • bundle exec rake rubocop_gradual:autocorrect (preferred)
    • bundle exec rake rubocop_gradual:force_update (only when you cannot fix the violations immediately)

As a general rule, fix style issues rather than ignoring them. For example, our specs should follow RSpec conventions like using described_class for the class under test.

Contributors

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Contributors

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Also see GitLab Contributors: https://gitlab.com/kettle-rb/kettle-dev/-/graphs/main

For Maintainers

One-time, Per-maintainer, Setup

IMPORTANT: To sign a build,
a public key for signing gems will need to be picked up by the line in the
gemspec defining the spec.cert_chain (check the relevant ENV variables there).
All releases are signed releases.
See: RubyGems Security Guide

NOTE: To build without signing the gem set SKIP_GEM_SIGNING to any value in the environment.

To release a new version:

Automated process

  1. Update version.rb to contian the correct version-to-be-released.
  2. Run bundle exec kettle-changelog.
  3. Run bundle exec kettle-release.

Manual process

  1. Run bin/setup && bin/rake as a “test, coverage, & linting” sanity check
  2. Update the version number in version.rb, and ensure CHANGELOG.md reflects changes
  3. Run bin/setup && bin/rake again as a secondary check, and to update Gemfile.lock
  4. Run git commit -am "🔖 Prepare release v<VERSION>" to commit the changes
  5. Run git push to trigger the final CI pipeline before release, and merge PRs
  6. Run export GIT_TRUNK_BRANCH_NAME="$(git remote show origin | grep 'HEAD branch' | cut -d ' ' -f5)" && echo $GIT_TRUNK_BRANCH_NAME
  7. Run git checkout $GIT_TRUNK_BRANCH_NAME
  8. Run git pull origin $GIT_TRUNK_BRANCH_NAME to ensure latest trunk code
  9. Optional for older Bundler (< 2.7.0): Set SOURCE_DATE_EPOCH so rake build and rake release use the same timestamp and generate the same checksums
    • If your Bundler is >= 2.7.0, you can skip this; builds are reproducible by default.
    • Run export SOURCE_DATE_EPOCH=$EPOCHSECONDS && echo $SOURCE_DATE_EPOCH
    • If the echo above has no output, then it didn’t work.
    • Note: zsh/datetime module is needed, if running zsh.
    • In older versions of bash you can use date +%s instead, i.e. export SOURCE_DATE_EPOCH=$(date +%s) && echo $SOURCE_DATE_EPOCH
  10. Run bundle exec rake build
  11. Run bin/gem_checksums (more context 1, 2)
    to create SHA-256 and SHA-512 checksums. This functionality is provided by the stone_checksums
    gem.
    • The script automatically commits but does not push the checksums
  12. Sanity check the SHA256, comparing with the output from the bin/gem_checksums command:
    • sha256sum pkg/<gem name>-<version>.gem
  13. Run bundle exec rake release which will create a git tag for the version,
    push git commits and tags, and push the .gem file to the gem host configured in the gemspec.