Contributing

Bug reports and pull requests are welcome on GitHub, CodeBerg, or GitLab.
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.

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.

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)

  • 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 (e.g., specs for lib/kettle/dev/release_cli.rb live in spec/kettle/dev/release_cli_spec.rb).
  • Do not create ad-hoc “_more” or split spec files for the same class/module. Consolidate all unit tests into the main spec file for that class/module.
  • Only integration scenarios that intentionally span multiple classes belong in spec/integration/.

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: If you want to sign the build you create,
your 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 to RubyGems.org will be signed.
See: RubyGems Security Guide

NOTE: To build without signing the gem you must set SKIP_GEM_SIGNING to some value in your environment.

To release a new version:

Automated process

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 rubygems.org