Add and apply Style/RedundantBegin rubocop rule

We're about to add code which might fall into the `RedundantBegin`
category, so we're adding the rule in order to prevent that.

.rubocop.yml

@@ -781,6 +781,9 @@ Style/RaiseArgs:
 Style/RedundantArgument:
   Enabled: true
 
+Style/RedundantBegin:
+  Enabled: true
+
 Style/RedundantCondition:
   Enabled: true
 

app/controllers/graphql_controller.rb

@@ -9,25 +9,23 @@ class GraphqlController < ApplicationController
   class QueryStringError < StandardError; end
 
   def execute
-    begin
-      raise GraphqlController::QueryStringError if query_string.nil?
+    raise GraphqlController::QueryStringError if query_string.nil?
 
-      result = ConsulSchema.execute(
-        query_string,
-        variables: prepare_variables,
-        context: {},
-        operation_name: params[:operationName]
-      )
-      render json: result
-    rescue GraphqlController::QueryStringError
-      render json: { message: "Query string not present" }, status: :bad_request
-    rescue JSON::ParserError
-      render json: { message: "Error parsing JSON" }, status: :bad_request
-    rescue GraphQL::ParseError
-      render json: { message: "Query string is not valid JSON" }, status: :bad_request
-    rescue ArgumentError => e
-      render json: { message: e.message }, status: :bad_request
-    end
+    result = ConsulSchema.execute(
+      query_string,
+      variables: prepare_variables,
+      context: {},
+      operation_name: params[:operationName]
+    )
+    render json: result
+  rescue GraphqlController::QueryStringError
+    render json: { message: "Query string not present" }, status: :bad_request
+  rescue JSON::ParserError
+    render json: { message: "Error parsing JSON" }, status: :bad_request
+  rescue GraphQL::ParseError
+    render json: { message: "Query string is not valid JSON" }, status: :bad_request
+  rescue ArgumentError => e
+    render json: { message: e.message }, status: :bad_request
   end
 
   private

app/models/legislation/annotation.rb

@@ -25,23 +25,21 @@ class Legislation::Annotation < ApplicationRecord
   end
 
   def store_context
-    begin
-      html = draft_version.body_html
-      doc = Nokogiri::HTML(html)
+    html = draft_version.body_html
+    doc = Nokogiri::HTML(html)
 
-      selector_start = "/html/body/#{range_start}"
-      el_start = doc.at_xpath(selector_start)
+    selector_start = "/html/body/#{range_start}"
+    el_start = doc.at_xpath(selector_start)
 
-      selector_end = "/html/body/#{range_end}"
-      el_end = doc.at_xpath(selector_end)
+    selector_end = "/html/body/#{range_end}"
+    el_end = doc.at_xpath(selector_end)
 
-      remainder_el_start = el_start.text[0..range_start_offset - 1] unless range_start_offset.zero?
-      remainder_el_end = el_end.text[range_end_offset..-1]
+    remainder_el_start = el_start.text[0..range_start_offset - 1] unless range_start_offset.zero?
+    remainder_el_end = el_end.text[range_end_offset..-1]
 
-      self.context = "#{remainder_el_start}<span class=annotator-hl>#{quote}</span>#{remainder_el_end}"
-    rescue
-      "<span class=annotator-hl>#{quote}</span>"
-    end
+    self.context = "#{remainder_el_start}<span class=annotator-hl>#{quote}</span>#{remainder_el_end}"
+  rescue
+    "<span class=annotator-hl>#{quote}</span>"
   end
 
   def create_first_comment

app/models/machine_learning.rb

@@ -15,57 +15,55 @@ class MachineLearning
   end
 
   def run
-    begin
-      export_proposals_to_json
-      export_budget_investments_to_json
-      export_comments_to_json
+    export_proposals_to_json
+    export_budget_investments_to_json
+    export_comments_to_json
 
-      return unless run_machine_learning_scripts
+    return unless run_machine_learning_scripts
 
-      if updated_file?(MachineLearning.proposals_taggings_filename) &&
-         updated_file?(MachineLearning.proposals_tags_filename)
-        cleanup_proposals_tags!
-        import_ml_proposals_tags
-        update_machine_learning_info_for("tags")
-      end
-
-      if updated_file?(MachineLearning.investments_taggings_filename) &&
-         updated_file?(MachineLearning.investments_tags_filename)
-        cleanup_investments_tags!
-        import_ml_investments_tags
-        update_machine_learning_info_for("tags")
-      end
-
-      if updated_file?(MachineLearning.proposals_related_filename)
-        cleanup_proposals_related_content!
-        import_proposals_related_content
-        update_machine_learning_info_for("related_content")
-      end
-
-      if updated_file?(MachineLearning.investments_related_filename)
-        cleanup_investments_related_content!
-        import_budget_investments_related_content
-        update_machine_learning_info_for("related_content")
-      end
-
-      if updated_file?(MachineLearning.proposals_comments_summary_filename)
-        cleanup_proposals_comments_summary!
-        import_ml_proposals_comments_summary
-        update_machine_learning_info_for("comments_summary")
-      end
-
-      if updated_file?(MachineLearning.investments_comments_summary_filename)
-        cleanup_investments_comments_summary!
-        import_ml_investments_comments_summary
-        update_machine_learning_info_for("comments_summary")
-      end
-
-      job.update!(finished_at: Time.current)
-      Mailer.machine_learning_success(user).deliver_later
-    rescue Exception => e
-      handle_error(e)
-      raise e
+    if updated_file?(MachineLearning.proposals_taggings_filename) &&
+       updated_file?(MachineLearning.proposals_tags_filename)
+      cleanup_proposals_tags!
+      import_ml_proposals_tags
+      update_machine_learning_info_for("tags")
     end
+
+    if updated_file?(MachineLearning.investments_taggings_filename) &&
+       updated_file?(MachineLearning.investments_tags_filename)
+      cleanup_investments_tags!
+      import_ml_investments_tags
+      update_machine_learning_info_for("tags")
+    end
+
+    if updated_file?(MachineLearning.proposals_related_filename)
+      cleanup_proposals_related_content!
+      import_proposals_related_content
+      update_machine_learning_info_for("related_content")
+    end
+
+    if updated_file?(MachineLearning.investments_related_filename)
+      cleanup_investments_related_content!
+      import_budget_investments_related_content
+      update_machine_learning_info_for("related_content")
+    end
+
+    if updated_file?(MachineLearning.proposals_comments_summary_filename)
+      cleanup_proposals_comments_summary!
+      import_ml_proposals_comments_summary
+      update_machine_learning_info_for("comments_summary")
+    end
+
+    if updated_file?(MachineLearning.investments_comments_summary_filename)
+      cleanup_investments_comments_summary!
+      import_ml_investments_comments_summary
+      update_machine_learning_info_for("comments_summary")
+    end
+
+    job.update!(finished_at: Time.current)
+    Mailer.machine_learning_success(user).deliver_later
+  rescue Exception => e
+    handle_error(e)
+    raise e
   end
   handle_asynchronously :run, queue: "machine_learning"
 

config/deploy.rb

@@ -84,18 +84,16 @@ end
 task :install_ruby do
   on roles(:app) do
     within release_path do
-      begin
-        current_ruby = capture(:rvm, "current")
-      rescue SSHKit::Command::Failed
+      current_ruby = capture(:rvm, "current")
+    rescue SSHKit::Command::Failed
+      after "install_ruby", "rvm1:install:rvm"
+      after "install_ruby", "rvm1:install:ruby"
+    else
+      if current_ruby.include?("not installed")
         after "install_ruby", "rvm1:install:rvm"
         after "install_ruby", "rvm1:install:ruby"
       else
-        if current_ruby.include?("not installed")
-          after "install_ruby", "rvm1:install:rvm"
-          after "install_ruby", "rvm1:install:ruby"
-        else
-          info "Ruby: Using #{current_ruby}"
-        end
+        info "Ruby: Using #{current_ruby}"
       end
     end
   end
@@ -104,19 +102,17 @@ end
 task :install_node do
   on roles(:app) do
     with rails_env: fetch(:rails_env) do
+      execute fetch(:fnm_install_node_command)
+    rescue SSHKit::Command::Failed
       begin
-        execute fetch(:fnm_install_node_command)
+        execute fetch(:fnm_setup_command)
       rescue SSHKit::Command::Failed
-        begin
-          execute fetch(:fnm_setup_command)
-        rescue SSHKit::Command::Failed
-          execute fetch(:fnm_install_command)
-        else
-          execute fetch(:fnm_update_command)
-        end
-
-        execute fetch(:fnm_install_node_command)
+        execute fetch(:fnm_install_command)
+      else
+        execute fetch(:fnm_update_command)
       end
+
+      execute fetch(:fnm_install_node_command)
     end
   end
 end

spec/controllers/officing/voters_controller_spec.rb

@@ -11,13 +11,11 @@ describe Officing::VotersController do
 
       2.times.map do
         Thread.new do
-          begin
-            post :create, params: {
-              voter: { poll_id: poll.id, user_id: user.id },
-              format: :js
-            }
-          rescue ActionDispatch::IllegalStateError
-          end
+          post :create, params: {
+            voter: { poll_id: poll.id, user_id: user.id },
+            format: :js
+          }
+        rescue ActionDispatch::IllegalStateError
         end
       end.each(&:join)
 

spec/controllers/polls/answers_controller_spec.rb

@@ -8,14 +8,12 @@ describe Polls::AnswersController do
 
       2.times.map do
         Thread.new do
-          begin
-            post :create, params: {
-              question_id: question.id,
-              option_id: question.question_options.find_by(title: "Answer A").id,
-              format: :js
-            }
-          rescue ActionDispatch::IllegalStateError, ActiveRecord::RecordInvalid
-          end
+          post :create, params: {
+            question_id: question.id,
+            option_id: question.question_options.find_by(title: "Answer A").id,
+            format: :js
+          }
+        rescue ActionDispatch::IllegalStateError, ActiveRecord::RecordInvalid
         end
       end.each(&:join)
 

spec/models/poll/answer_spec.rb

@@ -187,10 +187,8 @@ describe Poll::Answer do
 
       [answer, other_answer].map do |poll_answer|
         Thread.new do
-          begin
-            poll_answer.save_and_record_voter_participation
-          rescue ActiveRecord::RecordInvalid
-          end
+          poll_answer.save_and_record_voter_participation
+        rescue ActiveRecord::RecordInvalid
         end
       end.each(&:join)
 

spec/support/common_actions/graphql_api.rb

@@ -18,14 +18,12 @@ module GraphQLAPI
   def extract_fields(response, collection_name, field_chain)
     fields = field_chain.split(".")
     dig(response, "data.#{collection_name}.edges").map do |node|
-      begin
-        if fields.size > 1
-          node["node"][fields.first][fields.second]
-        else
-          node["node"][fields.first]
-        end
-      rescue NoMethodError
+      if fields.size > 1
+        node["node"][fields.first][fields.second]
+      else
+        node["node"][fields.first]
       end
+    rescue NoMethodError
     end.compact
   end
 end