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model_validations.rb « danger « tooling - gitlab.com/gitlab-org/gitlab-foss.git - Unnamed repository; edit this file 'description' to name the repository.
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# frozen_string_literal: true

require_relative 'suggestor'

module Tooling
  module Danger
    module ModelValidations
      include ::Tooling::Danger::Suggestor

      MODEL_FILES_PATH = 'app/models'
      MODEL_CONCERN_FILES_PATH = 'app/models/concerns'
      EE_PREFIX = 'ee/'
      MODEL_FILES_REGEX = %r{\A(#{EE_PREFIX})?#{MODEL_FILES_PATH}}
      MODEL_CONCERN_FILES_REGEX = %r{\A(#{EE_PREFIX})?#{MODEL_CONCERN_FILES_PATH}}
      VALIDATION_METHODS = %w[validates validate validates_each validates_with validates_associated].freeze
      VALIDATIONS_REGEX = /^\+\s*(.*\.)?(#{VALIDATION_METHODS.join('|')})[( ]/

      CODE_QUALITY_URL = "https://docs.gitlab.com/ee/development/code_review.html#quality"
      SUGGEST_MR_COMMENT = <<~SUGGEST_COMMENT.freeze
        Did you consider new validations can break existing records?
        Please follow the [code quality guidelines about new model validations](#{CODE_QUALITY_URL}) when adding a new
        model validation.

        If you're adding the validations to a model with no records you can ignore this warning.
      SUGGEST_COMMENT

      def add_comment_for_added_validations
        changed_model_files.each do |filename|
          add_suggestion(
            filename: filename,
            regex: VALIDATIONS_REGEX,
            comment_text: SUGGEST_MR_COMMENT
          )
        end
      end

      def changed_model_files
        added_files = helper.added_files
        modified_files = helper.modified_files

        modified_files.grep(MODEL_FILES_REGEX) + added_files.grep(MODEL_CONCERN_FILES_REGEX)
      end
    end
  end
end