René's URL Explorer Experiment

{"@context":"https://schema.org","@type":"DiscussionForumPosting","headline":"Find Unused Code","articleBody":"We will use a CLI tool to find unused code automatically 🔎🔎🔎. \n## Unused\n\n[Unused](https://unused.codes) is a CLI tool to find unused code, written in 100% Haskell by awesome [Josh Clayton](http://joshuaclayton.me/).\n## Install Unused on macOS\n\n```\n$ brew tap joshuaclayton/formulae\n$ brew install unused\n```\n## [Ctags](http://ctags.sourceforge.net/) for macOS\n\nInstall Ctags via homebrew instead of using system built-in older Ctags:\n\n```\n$ brew install ctags\n```\n\nIf you having problem that [your Ctags does not load homebrew-installed one](https://github.com/jollygoodcode/jollygoodcode.github.io/issues/20#issuecomment-229839112), add an alias (zsh):\n\n```\nalias ctags=\"`brew --prefix`/bin/ctags\"\n```\n## Generate index file\n\nFor Ruby files here is an example:\n\n```\n$ ctags -f .git/tags -R $(git ls-files | grep .rb)\n```\n\nA `.tags` file under `.git` folder will be generated, which contains the index of your Ruby code. [Don't forget to gitignore your tags file](https://help.github.com/articles/ignoring-files/#create-a-global-gitignore).\n## Find Unused Code\n\n```\n$ unused -s -g none\n```\n\n```\n* -s,--single-occurrence   Display only single occurrences\n* -g,--group-by ARG        [Allowed: directory, term, file, none] Group results\n```\n\nunused will do the hard work, find where unused code are, and report to you:\n\n```\nBulkCustomerDashboard                     1, 1  app/dashboards/bulk_customer_dashboard.rb  used once\nUserSerializer                            1, 1  app/serializers/user_serializer.rb         used once\nauthorized_repos                          1, 1  lib/github_api.rb                          used once\ncreate_subscription_record                1, 1  app/services/repo_subscriber.rb            used once\nexcluded_file?                            1, 1  lib/ext/scss-lint/config.rb                used once\nhas_something?                            1, 1  spec/models/linter/ruby_spec.rb            used once\nregister_email                            1, 1  spec/models/linter/ruby_spec.rb            used once\nstub_commit                               1, 1  spec/services/build_runner_spec.rb         used once\nstub_customer_with_discount_find_request  1, 1  spec/support/helpers/stripe_api_helper.rb  used once\nstubbed_style_checker_with_config_file    1, 1  spec/services/build_runner_spec.rb         used once\ntoken=                                    1, 1  app/models/user.rb                         used once\nuser_names                                1, 1  spec/models/linter/ruby_spec.rb            used once\nverified_request?                         1, 1  app/controllers/application_controller.rb  used once\n```\n\nWow, unused code found, delete them and then sent a [Pull Request](https://github.com/houndci/hound/pull/1169)!\n\nHappy Housekeeping! 🏡 \n\n_Note that Unused is meant to guide, though, not give definitive answers to what can be removed._\n_[-- Josh Clayton ‏@joshuaclayton](https://twitter.com/joshuaclayton/status/745334893077536769)_ \n","author":{"url":"https://github.com/JuanitoFatas","@type":"Person","name":"JuanitoFatas"},"datePublished":"2016-06-30T17:07:59.000Z","interactionStatistic":{"@type":"InteractionCounter","interactionType":"https://schema.org/CommentAction","userInteractionCount":19},"url":"https://github.com/20/jollygoodcode.github.io/issues/20"}