91 lines
3.3 KiB
Ruby
91 lines
3.3 KiB
Ruby
# frozen_string_literal: true
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require 'digest/md5'
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MESSAGE = <<MARKDOWN
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## Reviewer roulette
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Changes that require review have been detected! A merge request is normally
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reviewed by both a reviewer and a maintainer in its primary category (e.g.
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~frontend or ~backend), and by a maintainer in all other categories.
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MARKDOWN
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CATEGORY_TABLE_HEADER = <<MARKDOWN
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To spread load more evenly across eligible reviewers, Danger has randomly picked
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a candidate for each review slot. Feel free to
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[override these selections](https://about.gitlab.com/handbook/engineering/projects/#gitlab)
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if you think someone else would be better-suited, or the chosen person is unavailable.
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To read more on how to use the reviewer roulette, please take a look at the
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[Engineering workflow](https://about.gitlab.com/handbook/engineering/workflow/#basics)
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and [code review guidelines](https://docs.gitlab.com/ee/development/code_review.html).
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Once you've decided who will review this merge request, mention them as you
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normally would! Danger does not (yet?) automatically notify them for you.
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| Category | Reviewer | Maintainer |
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| -------- | -------- | ---------- |
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MARKDOWN
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UNKNOWN_FILES_MESSAGE = <<MARKDOWN
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These files couldn't be categorised, so Danger was unable to suggest a reviewer.
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Please consider creating a merge request to
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[add support](https://gitlab.com/gitlab-org/gitlab/blob/master/lib/gitlab/danger/helper.rb)
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for them.
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MARKDOWN
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OPTIONAL_REVIEW_TEMPLATE = "%{role} review is optional for %{category}".freeze
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NOT_AVAILABLE_TEMPLATE = 'No %{role} available'.freeze
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def mr_author
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roulette.team.find { |person| person.username == gitlab.mr_author }
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end
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def note_for_category_role(spin, role)
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if spin.optional_role == role
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return OPTIONAL_REVIEW_TEMPLATE % { role: role.capitalize, category: helper.label_for_category(spin.category) }
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end
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spin.public_send(role)&.markdown_name || NOT_AVAILABLE_TEMPLATE % { role: role } # rubocop:disable GitlabSecurity/PublicSend
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end
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def markdown_row_for_spin(spin)
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reviewer_note = note_for_category_role(spin, :reviewer)
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maintainer_note = note_for_category_role(spin, :maintainer)
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"| #{helper.label_for_category(spin.category)} | #{reviewer_note} | #{maintainer_note} |"
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end
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changes = helper.changes_by_category
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# Ignore any files that are known but uncategorized. Prompt for any unknown files
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changes.delete(:none)
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categories = changes.keys - [:unknown]
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# Ensure to spin for database reviewer/maintainer when ~database is applied (e.g. to review SQL queries)
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categories << :database if gitlab.mr_labels.include?('database') && !categories.include?(:database)
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if changes.any?
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project = helper.project_name
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branch_name = gitlab.mr_json['source_branch']
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roulette_spins = roulette.spin(project, categories, branch_name)
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rows = roulette_spins.map do |spin|
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# MR includes QA changes, but also other changes, and author isn't an SET
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if spin.category == :qa && categories.size > 1 && !mr_author.reviewer?(project, spin.category, [])
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spin.optional_role = :maintainer
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end
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spin.optional_role = :maintainer if spin.category == :test
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markdown_row_for_spin(spin)
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end
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unknown = changes.fetch(:unknown, [])
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markdown(MESSAGE)
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markdown(CATEGORY_TABLE_HEADER + rows.join("\n")) unless rows.empty?
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markdown(UNKNOWN_FILES_MESSAGE + helper.markdown_list(unknown)) unless unknown.empty?
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end
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