diff --git a/.rubocop.yml b/.rubocop.yml
index e07282dd894..86f5df61724 100644
--- a/.rubocop.yml
+++ b/.rubocop.yml
@@ -22,13 +22,6 @@ AllCops:
     - 'db/fixtures/**/*'
     - 'tmp/**/*'
     - 'bin/**/*'
-    - 'lib/backup/**/*'
-    - 'lib/ci/backup/**/*'
-    - 'lib/tasks/**/*'
-    - 'lib/ci/migrate/**/*'
-    - 'lib/email_validator.rb'
-    - 'lib/gitlab/upgrader.rb'
-    - 'lib/gitlab/seeder.rb'
     - 'generator_templates/**/*'
 
 # Style #######################################################################
@@ -208,6 +201,9 @@ Style/FrozenStringLiteralComment:
 # Do not introduce global variables.
 Style/GlobalVars:
   Enabled: true
+  Exclude:
+    - 'lib/backup/**/*'
+    - 'lib/tasks/**/*'
 
 # Prefer Ruby 1.9 hash syntax `{ a: 1, b: 2 }`
 # over 1.8 syntax `{ :a => 1, :b => 2 }`.
@@ -780,6 +776,11 @@ Rails/HasAndBelongsToMany:
 # Checks for calls to puts, print, etc.
 Rails/Output:
   Enabled: true
+  Exclude:
+    - lib/gitlab/seeder.rb
+    - lib/gitlab/upgrader.rb
+    - 'lib/backup/**/*'
+    - 'lib/tasks/**/*'
 
 # Checks for incorrect grammar when using methods like `3.day.ago`.
 Rails/PluralizationGrammar:
@@ -971,3 +972,9 @@ Style/ConditionalAssignment:
 
 Style/DoubleNegation:
   Enabled: false
+
+Rails/Exit:
+  Enabled: true
+  Exclude:
+    - lib/gitlab/upgrader.rb
+    - 'lib/backup/**/*'
diff --git a/lib/backup/database.rb b/lib/backup/database.rb
index 22319ec6623..4016ac76348 100644
--- a/lib/backup/database.rb
+++ b/lib/backup/database.rb
@@ -5,7 +5,7 @@ module Backup
     attr_reader :config, :db_file_name
 
     def initialize
-      @config = YAML.load_file(File.join(Rails.root,'config','database.yml'))[Rails.env]
+      @config = YAML.load_file(File.join(Rails.root, 'config', 'database.yml'))[Rails.env]
       @db_file_name = File.join(Gitlab.config.backup.path, 'db', 'database.sql.gz')
     end
 
@@ -13,28 +13,32 @@ module Backup
       FileUtils.mkdir_p(File.dirname(db_file_name))
       FileUtils.rm_f(db_file_name)
       compress_rd, compress_wr = IO.pipe
-      compress_pid = spawn(*%W(gzip -1 -c), in: compress_rd, out: [db_file_name, 'w', 0600])
+      compress_pid = spawn(*%w(gzip -1 -c), in: compress_rd, out: [db_file_name, 'w', 0600])
       compress_rd.close
 
-      dump_pid = case config["adapter"]
-      when /^mysql/ then
-        $progress.print "Dumping MySQL database #{config['database']} ... "
-        # Workaround warnings from MySQL 5.6 about passwords on cmd line
-        ENV['MYSQL_PWD'] = config["password"].to_s if config["password"]
-        spawn('mysqldump', *mysql_args, config['database'], out: compress_wr)
-      when "postgresql" then
-        $progress.print "Dumping PostgreSQL database #{config['database']} ... "
-        pg_env
-        pgsql_args = ["--clean"] # Pass '--clean' to include 'DROP TABLE' statements in the DB dump.
-        if Gitlab.config.backup.pg_schema
-          pgsql_args << "-n"
-          pgsql_args << Gitlab.config.backup.pg_schema
+      dump_pid =
+        case config["adapter"]
+        when /^mysql/ then
+          $progress.print "Dumping MySQL database #{config['database']} ... "
+          # Workaround warnings from MySQL 5.6 about passwords on cmd line
+          ENV['MYSQL_PWD'] = config["password"].to_s if config["password"]
+          spawn('mysqldump', *mysql_args, config['database'], out: compress_wr)
+        when "postgresql" then
+          $progress.print "Dumping PostgreSQL database #{config['database']} ... "
+          pg_env
+          pgsql_args = ["--clean"] # Pass '--clean' to include 'DROP TABLE' statements in the DB dump.
+          if Gitlab.config.backup.pg_schema
+            pgsql_args << "-n"
+            pgsql_args << Gitlab.config.backup.pg_schema
+          end
+          spawn('pg_dump', *pgsql_args, config['database'], out: compress_wr)
         end
-        spawn('pg_dump', *pgsql_args, config['database'], out: compress_wr)
-      end
       compress_wr.close
 
-      success = [compress_pid, dump_pid].all? { |pid| Process.waitpid(pid); $?.success? }
+      success = [compress_pid, dump_pid].all? do |pid|
+        Process.waitpid(pid)
+        $?.success?
+      end
 
       report_success(success)
       abort 'Backup failed' unless success
@@ -42,23 +46,27 @@ module Backup
 
     def restore
       decompress_rd, decompress_wr = IO.pipe
-      decompress_pid = spawn(*%W(gzip -cd), out: decompress_wr, in: db_file_name)
+      decompress_pid = spawn(*%w(gzip -cd), out: decompress_wr, in: db_file_name)
       decompress_wr.close
 
-      restore_pid = case config["adapter"]
-      when /^mysql/ then
-        $progress.print "Restoring MySQL database #{config['database']} ... "
-        # Workaround warnings from MySQL 5.6 about passwords on cmd line
-        ENV['MYSQL_PWD'] = config["password"].to_s if config["password"]
-        spawn('mysql', *mysql_args, config['database'], in: decompress_rd)
-      when "postgresql" then
-        $progress.print "Restoring PostgreSQL database #{config['database']} ... "
-        pg_env
-        spawn('psql', config['database'], in: decompress_rd)
-      end
+      restore_pid =
+        case config["adapter"]
+        when /^mysql/ then
+          $progress.print "Restoring MySQL database #{config['database']} ... "
+          # Workaround warnings from MySQL 5.6 about passwords on cmd line
+          ENV['MYSQL_PWD'] = config["password"].to_s if config["password"]
+          spawn('mysql', *mysql_args, config['database'], in: decompress_rd)
+        when "postgresql" then
+          $progress.print "Restoring PostgreSQL database #{config['database']} ... "
+          pg_env
+          spawn('psql', config['database'], in: decompress_rd)
+        end
       decompress_rd.close
 
-      success = [decompress_pid, restore_pid].all? { |pid| Process.waitpid(pid); $?.success? }
+      success = [decompress_pid, restore_pid].all? do |pid|
+        Process.waitpid(pid)
+        $?.success?
+      end
 
       report_success(success)
       abort 'Restore failed' unless success
diff --git a/lib/backup/files.rb b/lib/backup/files.rb
index 247c32c1c0a..30a91647b77 100644
--- a/lib/backup/files.rb
+++ b/lib/backup/files.rb
@@ -26,10 +26,10 @@ module Backup
           abort 'Backup failed'
         end
 
-        run_pipeline!([%W(tar -C #{@backup_files_dir} -cf - .), %W(gzip -c -1)], out: [backup_tarball, 'w', 0600])
+        run_pipeline!([%W(tar -C #{@backup_files_dir} -cf - .), %w(gzip -c -1)], out: [backup_tarball, 'w', 0600])
         FileUtils.rm_rf(@backup_files_dir)
       else
-        run_pipeline!([%W(tar -C #{app_files_dir} -cf - .), %W(gzip -c -1)], out: [backup_tarball, 'w', 0600])
+        run_pipeline!([%W(tar -C #{app_files_dir} -cf - .), %w(gzip -c -1)], out: [backup_tarball, 'w', 0600])
       end
     end
 
@@ -37,7 +37,7 @@ module Backup
       backup_existing_files_dir
       create_files_dir
 
-      run_pipeline!([%W(gzip -cd), %W(tar -C #{app_files_dir} -xf -)], in: backup_tarball)
+      run_pipeline!([%w(gzip -cd), %W(tar -C #{app_files_dir} -xf -)], in: backup_tarball)
     end
 
     def backup_existing_files_dir
@@ -47,7 +47,7 @@ module Backup
       end
     end
 
-    def run_pipeline!(cmd_list, options={})
+    def run_pipeline!(cmd_list, options = {})
       status_list = Open3.pipeline(*cmd_list, options)
       abort 'Backup failed' unless status_list.compact.all?(&:success?)
     end
diff --git a/lib/backup/manager.rb b/lib/backup/manager.rb
index f099c0651ac..5cc164a6325 100644
--- a/lib/backup/manager.rb
+++ b/lib/backup/manager.rb
@@ -1,8 +1,8 @@
 module Backup
   class Manager
-    ARCHIVES_TO_BACKUP = %w[uploads builds artifacts pages lfs registry]
-    FOLDERS_TO_BACKUP = %w[repositories db]
-    FILE_NAME_SUFFIX = '_gitlab_backup.tar'
+    ARCHIVES_TO_BACKUP = %w[uploads builds artifacts pages lfs registry].freeze
+    FOLDERS_TO_BACKUP = %w[repositories db].freeze
+    FILE_NAME_SUFFIX = '_gitlab_backup.tar'.freeze
 
     def pack
       # Make sure there is a connection
@@ -20,13 +20,13 @@ module Backup
       Dir.chdir(Gitlab.config.backup.path) do
         File.open("#{Gitlab.config.backup.path}/backup_information.yml",
                   "w+") do |file|
-          file << s.to_yaml.gsub(/^---\n/,'')
+          file << s.to_yaml.gsub(/^---\n/, '')
         end
 
         # create archive
         $progress.print "Creating backup archive: #{tar_file} ... "
         # Set file permissions on open to prevent chmod races.
-        tar_system_options = {out: [tar_file, 'w', Gitlab.config.backup.archive_permissions]}
+        tar_system_options = { out: [tar_file, 'w', Gitlab.config.backup.archive_permissions] }
         if Kernel.system('tar', '-cf', '-', *backup_contents, tar_system_options)
           $progress.puts "done".color(:green)
         else
@@ -50,8 +50,8 @@ module Backup
       directory = connect_to_remote_directory(connection_settings)
 
       if directory.files.create(key: tar_file, body: File.open(tar_file), public: false,
-          multipart_chunk_size: Gitlab.config.backup.upload.multipart_chunk_size,
-          encryption: Gitlab.config.backup.upload.encryption)
+                                multipart_chunk_size: Gitlab.config.backup.upload.multipart_chunk_size,
+                                encryption: Gitlab.config.backup.upload.encryption)
         $progress.puts "done".color(:green)
       else
         puts "uploading backup to #{remote_directory} failed".color(:red)
@@ -123,11 +123,11 @@ module Backup
         exit 1
       end
 
-      if ENV['BACKUP'].present?
-        tar_file = "#{ENV['BACKUP']}#{FILE_NAME_SUFFIX}"
-      else
-        tar_file = file_list.first
-      end
+      tar_file = if ENV['BACKUP'].present?
+                   "#{ENV['BACKUP']}#{FILE_NAME_SUFFIX}"
+                 else
+                   file_list.first
+                 end
 
       unless File.exist?(tar_file)
         $progress.puts "The backup file #{tar_file} does not exist!"
@@ -158,7 +158,7 @@ module Backup
     end
 
     def tar_version
-      tar_version, _ = Gitlab::Popen.popen(%W(tar --version))
+      tar_version, _ = Gitlab::Popen.popen(%w(tar --version))
       tar_version.force_encoding('locale').split("\n").first
     end
 
diff --git a/lib/backup/repository.rb b/lib/backup/repository.rb
index 91e43dcb114..d16d5ba4960 100644
--- a/lib/backup/repository.rb
+++ b/lib/backup/repository.rb
@@ -2,7 +2,7 @@ require 'yaml'
 
 module Backup
   class Repository
-
+    # rubocop:disable Metrics/AbcSize
     def dump
       prepare
 
@@ -85,11 +85,11 @@ module Backup
 
         project.ensure_dir_exist
 
-        if File.exists?(path_to_project_bundle)
-          cmd = %W(#{Gitlab.config.git.bin_path} clone --bare #{path_to_project_bundle} #{path_to_project_repo})
-        else
-          cmd = %W(#{Gitlab.config.git.bin_path} init --bare #{path_to_project_repo})
-        end
+        cmd = if File.exist?(path_to_project_bundle)
+                %W(#{Gitlab.config.git.bin_path} clone --bare #{path_to_project_bundle} #{path_to_project_repo})
+              else
+                %W(#{Gitlab.config.git.bin_path} init --bare #{path_to_project_repo})
+              end
 
         output, status = Gitlab::Popen.popen(cmd)
         if status.zero?
@@ -150,6 +150,7 @@ module Backup
         puts output
       end
     end
+    # rubocop:enable Metrics/AbcSize
 
     protected
 
@@ -193,7 +194,7 @@ module Backup
     end
 
     def silent
-      {err: '/dev/null', out: '/dev/null'}
+      { err: '/dev/null', out: '/dev/null' }
     end
 
     private
diff --git a/lib/backup/uploads.rb b/lib/backup/uploads.rb
index 9261f77f3c9..35118375499 100644
--- a/lib/backup/uploads.rb
+++ b/lib/backup/uploads.rb
@@ -2,7 +2,6 @@ require 'backup/files'
 
 module Backup
   class Uploads < Files
-
     def initialize
       super('uploads', Rails.root.join('public/uploads'))
     end
diff --git a/lib/gitlab/seeder.rb b/lib/gitlab/seeder.rb
index 7cf506ebe64..6fb0be493e8 100644
--- a/lib/gitlab/seeder.rb
+++ b/lib/gitlab/seeder.rb
@@ -18,7 +18,7 @@ def Notify.deliver_later
   self
 end
       eos
-      eval(code)
+      eval(code) # rubocop:disable Lint/Eval
     end
   end
 end
diff --git a/lib/gitlab/upgrader.rb b/lib/gitlab/upgrader.rb
index 4cc34e34460..961df0468a4 100644
--- a/lib/gitlab/upgrader.rb
+++ b/lib/gitlab/upgrader.rb
@@ -46,7 +46,7 @@ module Gitlab
       git_tags = fetch_git_tags
       git_tags = git_tags.select { |version| version =~ /v\d+\.\d+\.\d+\Z/ }
       git_versions = git_tags.map { |tag| Gitlab::VersionInfo.parse(tag.match(/v\d+\.\d+\.\d+/).to_s) }
-      "v#{git_versions.sort.last.to_s}"
+      "v#{git_versions.sort.last}"
     end
 
     def fetch_git_tags
@@ -59,10 +59,10 @@ module Gitlab
         "Stash changed files" => %W(#{Gitlab.config.git.bin_path} stash),
         "Get latest code" => %W(#{Gitlab.config.git.bin_path} fetch),
         "Switch to new version" => %W(#{Gitlab.config.git.bin_path} checkout v#{latest_version}),
-        "Install gems" => %W(bundle),
-        "Migrate DB" => %W(bundle exec rake db:migrate),
-        "Recompile assets" => %W(bundle exec rake yarn:install gitlab:assets:clean gitlab:assets:compile),
-        "Clear cache" => %W(bundle exec rake cache:clear)
+        "Install gems" => %w(bundle),
+        "Migrate DB" => %w(bundle exec rake db:migrate),
+        "Recompile assets" => %w(bundle exec rake yarn:install gitlab:assets:clean gitlab:assets:compile),
+        "Clear cache" => %w(bundle exec rake cache:clear)
       }
     end
 
diff --git a/lib/tasks/brakeman.rake b/lib/tasks/brakeman.rake
index d5a402907d8..2301ec9b228 100644
--- a/lib/tasks/brakeman.rake
+++ b/lib/tasks/brakeman.rake
@@ -2,7 +2,7 @@ desc 'Security check via brakeman'
 task :brakeman do
   # We get 0 warnings at level 'w3' but we would like to reach 'w2'. Merge
   # requests are welcome!
-  if system(*%W(brakeman --no-progress --skip-files lib/backup/repository.rb -w3 -z))
+  if system(*%w(brakeman --no-progress --skip-files lib/backup/repository.rb -w3 -z))
     puts 'Security check succeed'
   else
     puts 'Security check failed'
diff --git a/lib/tasks/cache.rake b/lib/tasks/cache.rake
index 78ae187817a..d55923673b1 100644
--- a/lib/tasks/cache.rake
+++ b/lib/tasks/cache.rake
@@ -1,7 +1,7 @@
 namespace :cache do
   namespace :clear do
     REDIS_CLEAR_BATCH_SIZE = 1000 # There seems to be no speedup when pushing beyond 1,000
-    REDIS_SCAN_START_STOP = '0' # Magic value, see http://redis.io/commands/scan
+    REDIS_SCAN_START_STOP = '0'.freeze # Magic value, see http://redis.io/commands/scan
 
     desc "GitLab | Clear redis cache"
     task redis: :environment do
diff --git a/lib/tasks/dev.rake b/lib/tasks/dev.rake
index 5e94fba97bf..e65609d7001 100644
--- a/lib/tasks/dev.rake
+++ b/lib/tasks/dev.rake
@@ -2,7 +2,7 @@ task dev: ["dev:setup"]
 
 namespace :dev do
   desc "GitLab | Setup developer environment (db, fixtures)"
-  task :setup => :environment do
+  task setup: :environment do
     ENV['force'] = 'yes'
     Rake::Task["gitlab:setup"].invoke
     Rake::Task["gitlab:shell:setup"].invoke
diff --git a/lib/tasks/downtime_check.rake b/lib/tasks/downtime_check.rake
index afe5d42910c..557f4fef10b 100644
--- a/lib/tasks/downtime_check.rake
+++ b/lib/tasks/downtime_check.rake
@@ -1,10 +1,10 @@
 desc 'Checks if migrations in a branch require downtime'
 task downtime_check: :environment do
-  if defined?(Gitlab::License)
-    repo = 'gitlab-ee'
-  else
-    repo = 'gitlab-ce'
-  end
+  repo = if defined?(Gitlab::License)
+           'gitlab-ee'
+         else
+           'gitlab-ce'
+         end
 
   `git fetch https://gitlab.com/gitlab-org/#{repo}.git --depth 1`
 
diff --git a/lib/tasks/flay.rake b/lib/tasks/flay.rake
index e9587595fef..7ad2b2e4d39 100644
--- a/lib/tasks/flay.rake
+++ b/lib/tasks/flay.rake
@@ -1,6 +1,6 @@
 desc 'Code duplication analyze via flay'
 task :flay do
-  output = %x(bundle exec flay --mass 35 app/ lib/gitlab/)
+  output = `bundle exec flay --mass 35 app/ lib/gitlab/`
 
   if output.include? "Similar code found"
     puts output
diff --git a/lib/tasks/gemojione.rake b/lib/tasks/gemojione.rake
index 993112aee3b..f5ff29415e8 100644
--- a/lib/tasks/gemojione.rake
+++ b/lib/tasks/gemojione.rake
@@ -81,9 +81,9 @@ namespace :gemojione do
 
       # SpriteFactory's SCSS is a bit too verbose for our purposes here, so
       # let's simplify it
-      system(%Q(sed -i '' "s/width: #{SIZE}px; height: #{SIZE}px; background: image-url('emoji.png')/background-position:/" #{style_path}))
-      system(%Q(sed -i '' "s/ no-repeat//" #{style_path}))
-      system(%Q(sed -i '' "s/ 0px/ 0/" #{style_path}))
+      system(%(sed -i '' "s/width: #{SIZE}px; height: #{SIZE}px; background: image-url('emoji.png')/background-position:/" #{style_path}))
+      system(%(sed -i '' "s/ no-repeat//" #{style_path}))
+      system(%(sed -i '' "s/ 0px/ 0/" #{style_path}))
 
       # Append a generic rule that applies to all Emojis
       File.open(style_path, 'a') do |f|
diff --git a/lib/tasks/gitlab/assets.rake b/lib/tasks/gitlab/assets.rake
index 3eb5fc07b3c..098f9851b45 100644
--- a/lib/tasks/gitlab/assets.rake
+++ b/lib/tasks/gitlab/assets.rake
@@ -20,7 +20,7 @@ namespace :gitlab do
     desc 'GitLab | Assets | Fix all absolute url references in CSS'
     task :fix_urls do
       css_files = Dir['public/assets/*.css']
-      css_files.each do | file |
+      css_files.each do |file|
         # replace url(/assets/*) with url(./*)
         puts "Fixing #{file}"
         system "sed", "-i", "-e", 's/url(\([\"\']\?\)\/assets\//url(\1.\//g', file
diff --git a/lib/tasks/gitlab/check.rake b/lib/tasks/gitlab/check.rake
index 6102517e730..38edd49b6ed 100644
--- a/lib/tasks/gitlab/check.rake
+++ b/lib/tasks/gitlab/check.rake
@@ -6,8 +6,6 @@ namespace :gitlab do
                  gitlab:ldap:check
                  gitlab:app:check}
 
-
-
   namespace :app do
     desc "GitLab | Check the configuration of the GitLab Rails app"
     task check: :environment  do
@@ -34,7 +32,6 @@ namespace :gitlab do
       finished_checking "GitLab"
     end
 
-
     # Checks
     ########################
 
@@ -194,7 +191,7 @@ namespace :gitlab do
     def check_migrations_are_up
       print "All migrations up? ... "
 
-      migration_status, _ = Gitlab::Popen.popen(%W(bundle exec rake db:migrate:status))
+      migration_status, _ = Gitlab::Popen.popen(%w(bundle exec rake db:migrate:status))
 
       unless migration_status =~ /down\s+\d{14}/
         puts "yes".color(:green)
@@ -279,7 +276,7 @@ namespace :gitlab do
       upload_path_tmp = File.join(upload_path, 'tmp')
 
       if File.stat(upload_path).mode == 040700
-        unless Dir.exists?(upload_path_tmp)
+        unless Dir.exist?(upload_path_tmp)
           puts 'skipped (no tmp uploads folder yet)'.color(:magenta)
           return
         end
@@ -316,7 +313,7 @@ namespace :gitlab do
       min_redis_version = "2.8.0"
       print "Redis version >= #{min_redis_version}? ... "
 
-      redis_version = run_command(%W(redis-cli --version))
+      redis_version = run_command(%w(redis-cli --version))
       redis_version = redis_version.try(:match, /redis-cli (\d+\.\d+\.\d+)/)
       if redis_version &&
           (Gem::Version.new(redis_version[1]) > Gem::Version.new(min_redis_version))
@@ -351,7 +348,6 @@ namespace :gitlab do
       finished_checking "GitLab Shell"
     end
 
-
     # Checks
     ########################
 
@@ -387,7 +383,7 @@ namespace :gitlab do
 
         unless File.exist?(repo_base_path)
           puts "can't check because of previous errors".color(:magenta)
-          return
+          break
         end
 
         unless File.symlink?(repo_base_path)
@@ -410,7 +406,7 @@ namespace :gitlab do
 
         unless File.exist?(repo_base_path)
           puts "can't check because of previous errors".color(:magenta)
-          return
+          break
         end
 
         if File.stat(repo_base_path).mode.to_s(8).ends_with?("2770")
@@ -440,7 +436,7 @@ namespace :gitlab do
 
         unless File.exist?(repo_base_path)
           puts "can't check because of previous errors".color(:magenta)
-          return
+          break
         end
 
         uid = uid_for(gitlab_shell_ssh_user)
@@ -493,7 +489,6 @@ namespace :gitlab do
           )
           fix_and_rerun
         end
-
       end
     end
 
@@ -565,8 +560,6 @@ namespace :gitlab do
     end
   end
 
-
-
   namespace :sidekiq do
     desc "GitLab | Check the configuration of Sidekiq"
     task check: :environment  do
@@ -579,7 +572,6 @@ namespace :gitlab do
       finished_checking "Sidekiq"
     end
 
-
     # Checks
     ########################
 
@@ -621,12 +613,11 @@ namespace :gitlab do
     end
 
     def sidekiq_process_count
-      ps_ux, _ = Gitlab::Popen.popen(%W(ps ux))
+      ps_ux, _ = Gitlab::Popen.popen(%w(ps ux))
       ps_ux.scan(/sidekiq \d+\.\d+\.\d+/).count
     end
   end
 
-
   namespace :incoming_email do
     desc "GitLab | Check the configuration of Reply by email"
     task check: :environment  do
@@ -649,7 +640,6 @@ namespace :gitlab do
       finished_checking "Reply by email"
     end
 
-
     # Checks
     ########################
 
@@ -757,7 +747,7 @@ namespace :gitlab do
     end
 
     def mail_room_running?
-      ps_ux, _ = Gitlab::Popen.popen(%W(ps ux))
+      ps_ux, _ = Gitlab::Popen.popen(%w(ps ux))
       ps_ux.include?("mail_room")
     end
   end
@@ -805,13 +795,13 @@ namespace :gitlab do
     def check_ldap_auth(adapter)
       auth = adapter.config.has_auth?
 
-      if auth && adapter.ldap.bind
-        message = 'Success'.color(:green)
-      elsif auth
-        message = 'Failed. Check `bind_dn` and `password` configuration values'.color(:red)
-      else
-        message = 'Anonymous. No `bind_dn` or `password` configured'.color(:yellow)
-      end
+      message = if auth && adapter.ldap.bind
+                  'Success'.color(:green)
+                elsif auth
+                  'Failed. Check `bind_dn` and `password` configuration values'.color(:red)
+                else
+                  'Anonymous. No `bind_dn` or `password` configured'.color(:yellow)
+                end
 
       puts "LDAP authentication... #{message}"
     end
@@ -838,11 +828,11 @@ namespace :gitlab do
       user = User.find_by(username: username)
       if user
         repo_dirs = user.authorized_projects.map do |p|
-                      File.join(
-                        p.repository_storage_path,
-                        "#{p.path_with_namespace}.git"
-                      )
-                    end
+          File.join(
+            p.repository_storage_path,
+            "#{p.path_with_namespace}.git"
+          )
+        end
 
         repo_dirs.each { |repo_dir| check_repo_integrity(repo_dir) }
       else
@@ -855,7 +845,7 @@ namespace :gitlab do
   ##########################
 
   def fix_and_rerun
-    puts "  Please #{"fix the error above"} and rerun the checks.".color(:red)
+    puts "  Please fix the error above and rerun the checks.".color(:red)
   end
 
   def for_more_information(*sources)
@@ -917,7 +907,7 @@ namespace :gitlab do
 
   def check_ruby_version
     required_version = Gitlab::VersionInfo.new(2, 1, 0)
-    current_version = Gitlab::VersionInfo.parse(run_command(%W(ruby --version)))
+    current_version = Gitlab::VersionInfo.parse(run_command(%w(ruby --version)))
 
     print "Ruby version >= #{required_version} ? ... "
 
@@ -988,13 +978,13 @@ namespace :gitlab do
   end
 
   def check_config_lock(repo_dir)
-    config_exists = File.exist?(File.join(repo_dir,'config.lock'))
+    config_exists = File.exist?(File.join(repo_dir, 'config.lock'))
     config_output = config_exists ? 'yes'.color(:red) : 'no'.color(:green)
     puts "'config.lock' file exists?".color(:yellow) + " ... #{config_output}"
   end
 
   def check_ref_locks(repo_dir)
-    lock_files = Dir.glob(File.join(repo_dir,'refs/heads/*.lock'))
+    lock_files = Dir.glob(File.join(repo_dir, 'refs/heads/*.lock'))
     if lock_files.present?
       puts "Ref lock files exist:".color(:red)
       lock_files.each do |lock_file|
diff --git a/lib/tasks/gitlab/cleanup.rake b/lib/tasks/gitlab/cleanup.rake
index 967f630ef20..daf7382dd02 100644
--- a/lib/tasks/gitlab/cleanup.rake
+++ b/lib/tasks/gitlab/cleanup.rake
@@ -25,7 +25,6 @@ namespace :gitlab do
         end
 
         all_dirs.each do |dir_path|
-
           if remove_flag
             if FileUtils.rm_rf dir_path
               puts "Removed...#{dir_path}".color(:red)
@@ -53,11 +52,11 @@ namespace :gitlab do
         IO.popen(%W(find #{repo_root} -mindepth 1 -maxdepth 2 -name *.git)) do |find|
           find.each_line do |path|
             path.chomp!
-            repo_with_namespace = path.
-              sub(repo_root, '').
-              sub(%r{^/*}, '').
-              chomp('.git').
-              chomp('.wiki')
+            repo_with_namespace = path
+              .sub(repo_root, '')
+              .sub(%r{^/*}, '')
+              .chomp('.git')
+              .chomp('.wiki')
             next if Project.find_by_full_path(repo_with_namespace)
             new_path = path + move_suffix
             puts path.inspect + ' -> ' + new_path.inspect
diff --git a/lib/tasks/gitlab/db.rake b/lib/tasks/gitlab/db.rake
index 7c96bc864ce..ecf6b6e068b 100644
--- a/lib/tasks/gitlab/db.rake
+++ b/lib/tasks/gitlab/db.rake
@@ -23,7 +23,7 @@ namespace :gitlab do
     end
 
     desc 'Drop all tables'
-    task :drop_tables => :environment do
+    task drop_tables: :environment do
       connection = ActiveRecord::Base.connection
 
       # If MySQL, turn off foreign key checks
@@ -62,9 +62,9 @@ namespace :gitlab do
 
       ref = Shellwords.escape(args[:ref])
 
-      migrations = `git diff #{ref}.. --name-only -- db/migrate`.lines.
-        map { |file| Rails.root.join(file.strip).to_s }.
-        select { |file| File.file?(file) }
+      migrations = `git diff #{ref}.. --name-only -- db/migrate`.lines
+        .map { |file| Rails.root.join(file.strip).to_s }
+        .select { |file| File.file?(file) }
 
       Gitlab::DowntimeCheck.new.check_and_print(migrations)
     end
diff --git a/lib/tasks/gitlab/git.rake b/lib/tasks/gitlab/git.rake
index a67c1fe1f27..cf82134d97e 100644
--- a/lib/tasks/gitlab/git.rake
+++ b/lib/tasks/gitlab/git.rake
@@ -1,6 +1,5 @@
 namespace :gitlab do
   namespace :git do
-
     desc "GitLab | Git | Repack"
     task repack: :environment do
       failures = perform_git_cmd(%W(#{Gitlab.config.git.bin_path} repack -a --quiet), "Repacking repo")
@@ -50,6 +49,5 @@ namespace :gitlab do
       puts "The following repositories reported errors:".color(:red)
       failures.each { |f| puts "- #{f}" }
     end
-
   end
 end
diff --git a/lib/tasks/gitlab/import.rake b/lib/tasks/gitlab/import.rake
index b4015f5238e..66e7b7685f7 100644
--- a/lib/tasks/gitlab/import.rake
+++ b/lib/tasks/gitlab/import.rake
@@ -46,7 +46,7 @@ namespace :gitlab do
               group = Namespace.find_by(path: group_name)
               # create group namespace
               unless group
-                group = Group.new(:name => group_name)
+                group = Group.new(name: group_name)
                 group.path = group_name
                 group.owner = user
                 if group.save
diff --git a/lib/tasks/gitlab/import_export.rake b/lib/tasks/gitlab/import_export.rake
index c2c6031db67..dd1825c8a9e 100644
--- a/lib/tasks/gitlab/import_export.rake
+++ b/lib/tasks/gitlab/import_export.rake
@@ -7,7 +7,7 @@ namespace :gitlab do
 
     desc "GitLab | Display exported DB structure"
     task data: :environment do
-      puts YAML.load_file(Gitlab::ImportExport.config_file)['project_tree'].to_yaml(:SortKeys => true)
+      puts YAML.load_file(Gitlab::ImportExport.config_file)['project_tree'].to_yaml(SortKeys: true)
     end
   end
 end
diff --git a/lib/tasks/gitlab/info.rake b/lib/tasks/gitlab/info.rake
index f7c831892ee..ae78fe64eb8 100644
--- a/lib/tasks/gitlab/info.rake
+++ b/lib/tasks/gitlab/info.rake
@@ -2,24 +2,23 @@ namespace :gitlab do
   namespace :env do
     desc "GitLab | Show information about GitLab and its environment"
     task info: :environment  do
-
       # check if there is an RVM environment
-      rvm_version = run_and_match(%W(rvm --version), /[\d\.]+/).try(:to_s)
+      rvm_version = run_and_match(%w(rvm --version), /[\d\.]+/).try(:to_s)
       # check Ruby version
-      ruby_version = run_and_match(%W(ruby --version), /[\d\.p]+/).try(:to_s)
+      ruby_version = run_and_match(%w(ruby --version), /[\d\.p]+/).try(:to_s)
       # check Gem version
-      gem_version = run_command(%W(gem --version))
+      gem_version = run_command(%w(gem --version))
       # check Bundler version
-      bunder_version = run_and_match(%W(bundle --version), /[\d\.]+/).try(:to_s)
+      bunder_version = run_and_match(%w(bundle --version), /[\d\.]+/).try(:to_s)
       # check Rake version
-      rake_version = run_and_match(%W(rake --version), /[\d\.]+/).try(:to_s)
+      rake_version = run_and_match(%w(rake --version), /[\d\.]+/).try(:to_s)
       # check redis version
-      redis_version = run_and_match(%W(redis-cli --version), /redis-cli (\d+\.\d+\.\d+)/).to_a
+      redis_version = run_and_match(%w(redis-cli --version), /redis-cli (\d+\.\d+\.\d+)/).to_a
 
       puts ""
       puts "System information".color(:yellow)
       puts "System:\t\t#{os_name || "unknown".color(:red)}"
-      puts "Current User:\t#{run_command(%W(whoami))}"
+      puts "Current User:\t#{run_command(%w(whoami))}"
       puts "Using RVM:\t#{rvm_version.present? ? "yes".color(:green) : "no"}"
       puts "RVM Version:\t#{rvm_version}" if rvm_version.present?
       puts "Ruby Version:\t#{ruby_version || "unknown".color(:red)}"
@@ -29,7 +28,6 @@ namespace :gitlab do
       puts "Redis Version:\t#{redis_version[1] || "unknown".color(:red)}"
       puts "Sidekiq Version:#{Sidekiq::VERSION}"
 
-
       # check database adapter
       database_adapter = ActiveRecord::Base.connection.adapter_name.downcase
 
@@ -54,8 +52,6 @@ namespace :gitlab do
       puts "Using Omniauth:\t#{Gitlab.config.omniauth.enabled ? "yes".color(:green) : "no"}"
       puts "Omniauth Providers: #{omniauth_providers.join(', ')}" if Gitlab.config.omniauth.enabled
 
-
-
       # check Gitolite version
       gitlab_shell_version_file = "#{Gitlab.config.gitlab_shell.hooks_path}/../VERSION"
       if File.readable?(gitlab_shell_version_file)
@@ -71,7 +67,6 @@ namespace :gitlab do
       end
       puts "Hooks:\t\t#{Gitlab.config.gitlab_shell.hooks_path}"
       puts "Git:\t\t#{Gitlab.config.git.bin_path}"
-
     end
   end
 end
diff --git a/lib/tasks/gitlab/shell.rake b/lib/tasks/gitlab/shell.rake
index 5a09cd7ce41..dd2fda54e62 100644
--- a/lib/tasks/gitlab/shell.rake
+++ b/lib/tasks/gitlab/shell.rake
@@ -20,10 +20,10 @@ namespace :gitlab do
         config = {
           user: Gitlab.config.gitlab.user,
           gitlab_url: gitlab_url,
-          http_settings: {self_signed_cert: false}.stringify_keys,
+          http_settings: { self_signed_cert: false }.stringify_keys,
           auth_file: File.join(user_home, ".ssh", "authorized_keys"),
           redis: {
-            bin: %x{which redis-cli}.chomp,
+            bin: `which redis-cli`.chomp,
             namespace: "resque:gitlab"
           }.stringify_keys,
           log_level: "INFO",
@@ -43,7 +43,7 @@ namespace :gitlab do
         File.open("config.yml", "w+") {|f| f.puts config.to_yaml}
 
         # Launch installation process
-        system(*%W(bin/install) + repository_storage_paths_args)
+        system(*%w(bin/install) + repository_storage_paths_args)
       end
 
       # (Re)create hooks
diff --git a/lib/tasks/gitlab/sidekiq.rake b/lib/tasks/gitlab/sidekiq.rake
index f2e12d85045..6cbc83b8973 100644
--- a/lib/tasks/gitlab/sidekiq.rake
+++ b/lib/tasks/gitlab/sidekiq.rake
@@ -1,9 +1,9 @@
 namespace :gitlab do
   namespace :sidekiq do
-    QUEUE = 'queue:post_receive'
+    QUEUE = 'queue:post_receive'.freeze
 
     desc 'Drop all Sidekiq PostReceive jobs for a given project'
-    task :drop_post_receive , [:project] => :environment do |t, args|
+    task :drop_post_receive, [:project] => :environment do |t, args|
       unless args.project.present?
         abort "Please specify the project you want to drop PostReceive jobs for:\n  rake gitlab:sidekiq:drop_post_receive[group/project]"
       end
@@ -21,7 +21,7 @@ namespace :gitlab do
         # new jobs already. We will repopulate it with the old jobs, skipping the
         # ones we want to drop.
         dropped = 0
-        while (job = redis.lpop(temp_queue)) do
+        while (job = redis.lpop(temp_queue))
           if repo_path(job) == project_path
             dropped += 1
           else
diff --git a/lib/tasks/gitlab/task_helpers.rb b/lib/tasks/gitlab/task_helpers.rb
index e128738b5f8..e5de3e22165 100644
--- a/lib/tasks/gitlab/task_helpers.rb
+++ b/lib/tasks/gitlab/task_helpers.rb
@@ -19,23 +19,15 @@ module Gitlab
     # It will primarily use lsb_relase to determine the OS.
     # It has fallbacks to Debian, SuSE, OS X and systems running systemd.
     def os_name
-      os_name = run_command(%W(lsb_release -irs))
-      os_name ||= if File.readable?('/etc/system-release')
-        File.read('/etc/system-release')
-      end
-      os_name ||= if File.readable?('/etc/debian_version')
-        debian_version = File.read('/etc/debian_version')
-        "Debian #{debian_version}"
-      end
-      os_name ||= if File.readable?('/etc/SuSE-release')
-        File.read('/etc/SuSE-release')
-      end
-      os_name ||= if os_x_version = run_command(%W(sw_vers -productVersion))
-        "Mac OS X #{os_x_version}"
-      end
-      os_name ||= if File.readable?('/etc/os-release')
-        File.read('/etc/os-release').match(/PRETTY_NAME=\"(.+)\"/)[1]
-      end
+      os_name = run_command(%w(lsb_release -irs))
+      os_name ||= File.read('/etc/system-release') if File.readable?('/etc/system-release')
+      os_name ||= "Debian #{File.read('/etc/debian_version')}" if File.readable?('/etc/debian_version')
+      os_name ||= File.read('/etc/SuSE-release') if File.readable?('/etc/SuSE-release')
+      os_name ||=
+        if os_x_version = run_command(%w(sw_vers -productVersion))
+          "Mac OS X #{os_x_version}"
+        end
+      os_name ||= File.read('/etc/os-release').match(/PRETTY_NAME=\"(.+)\"/)[1] if File.readable?('/etc/os-release')
       os_name.try(:squish!)
     end
 
@@ -104,7 +96,7 @@ module Gitlab
     def warn_user_is_not_gitlab
       unless @warned_user_not_gitlab
         gitlab_user = Gitlab.config.gitlab.user
-        current_user = run_command(%W(whoami)).chomp
+        current_user = run_command(%w(whoami)).chomp
         unless current_user == gitlab_user
           puts " Warning ".color(:black).background(:yellow)
           puts "  You are running as user #{current_user.color(:magenta)}, we hope you know what you are doing."
@@ -171,14 +163,14 @@ module Gitlab
 
     def reset_to_tag(tag_wanted, target_dir)
       tag =
-      begin
-        # First try to checkout without fetching
-        # to avoid stalling tests if the Internet is down.
-        run_command!(%W[#{Gitlab.config.git.bin_path} -C #{target_dir} describe -- #{tag_wanted}])
-      rescue Gitlab::TaskFailedError
-        run_command!(%W[#{Gitlab.config.git.bin_path} -C #{target_dir} fetch origin])
-        run_command!(%W[#{Gitlab.config.git.bin_path} -C #{target_dir} describe -- origin/#{tag_wanted}])
-      end
+        begin
+          # First try to checkout without fetching
+          # to avoid stalling tests if the Internet is down.
+          run_command!(%W[#{Gitlab.config.git.bin_path} -C #{target_dir} describe -- #{tag_wanted}])
+        rescue Gitlab::TaskFailedError
+          run_command!(%W[#{Gitlab.config.git.bin_path} -C #{target_dir} fetch origin])
+          run_command!(%W[#{Gitlab.config.git.bin_path} -C #{target_dir} describe -- origin/#{tag_wanted}])
+        end
 
       if tag
         run_command!(%W[#{Gitlab.config.git.bin_path} -C #{target_dir} reset --hard #{tag.strip}])
diff --git a/lib/tasks/gitlab/test.rake b/lib/tasks/gitlab/test.rake
index 84810b489ce..523b0fa055b 100644
--- a/lib/tasks/gitlab/test.rake
+++ b/lib/tasks/gitlab/test.rake
@@ -2,15 +2,15 @@ namespace :gitlab do
   desc "GitLab | Run all tests"
   task :test do
     cmds = [
-      %W(rake brakeman),
-      %W(rake rubocop),
-      %W(rake spinach),
-      %W(rake spec),
-      %W(rake karma)
+      %w(rake brakeman),
+      %w(rake rubocop),
+      %w(rake spinach),
+      %w(rake spec),
+      %w(rake karma)
     ]
 
     cmds.each do |cmd|
-      system({'RAILS_ENV' => 'test', 'force' => 'yes'}, *cmd) or raise("#{cmd} failed!")
+      system({ 'RAILS_ENV' => 'test', 'force' => 'yes' }, *cmd) || raise("#{cmd} failed!")
     end
   end
 end
diff --git a/lib/tasks/gitlab/track_deployment.rake b/lib/tasks/gitlab/track_deployment.rake
index 84aa2e8507a..6f101aea303 100644
--- a/lib/tasks/gitlab/track_deployment.rake
+++ b/lib/tasks/gitlab/track_deployment.rake
@@ -1,8 +1,8 @@
 namespace :gitlab do
   desc 'GitLab | Tracks a deployment in GitLab Performance Monitoring'
   task track_deployment: :environment do
-    metric = Gitlab::Metrics::Metric.
-      new('deployments', version: Gitlab::VERSION)
+    metric = Gitlab::Metrics::Metric
+      .new('deployments', version: Gitlab::VERSION)
 
     Gitlab::Metrics.submit_metrics([metric.to_hash])
   end
diff --git a/lib/tasks/gitlab/update_templates.rake b/lib/tasks/gitlab/update_templates.rake
index b77a5bb62d1..dbdfb335a5c 100644
--- a/lib/tasks/gitlab/update_templates.rake
+++ b/lib/tasks/gitlab/update_templates.rake
@@ -46,7 +46,7 @@ namespace :gitlab do
       "https://gitlab.com/gitlab-org/gitlab-ci-yml.git",
       /(\.{1,2}|LICENSE|Pages|autodeploy|\.gitlab-ci.yml)\z/
     )
-  ]
+  ].freeze
 
   def vendor_directory
     Rails.root.join('vendor')
diff --git a/lib/tasks/gitlab/web_hook.rake b/lib/tasks/gitlab/web_hook.rake
index 49530e7a372..5a1c8006052 100644
--- a/lib/tasks/gitlab/web_hook.rake
+++ b/lib/tasks/gitlab/web_hook.rake
@@ -1,7 +1,7 @@
 namespace :gitlab do
   namespace :web_hook do
     desc "GitLab | Adds a webhook to the projects"
-    task :add => :environment do
+    task add: :environment do
       web_hook_url = ENV['URL']
       namespace_path = ENV['NAMESPACE']
 
@@ -21,7 +21,7 @@ namespace :gitlab do
     end
 
     desc "GitLab | Remove a webhook from the projects"
-    task :rm => :environment do
+    task rm: :environment do
       web_hook_url = ENV['URL']
       namespace_path = ENV['NAMESPACE']
 
@@ -34,7 +34,7 @@ namespace :gitlab do
     end
 
     desc "GitLab | List webhooks"
-    task :list => :environment do
+    task list: :environment do
       namespace_path = ENV['NAMESPACE']
 
       projects = find_projects(namespace_path)
diff --git a/lib/tasks/lint.rake b/lib/tasks/lint.rake
index 32b668df3bf..7b63e93db0e 100644
--- a/lib/tasks/lint.rake
+++ b/lib/tasks/lint.rake
@@ -6,4 +6,3 @@ unless Rails.env.production?
     end
   end
 end
-
diff --git a/lib/tasks/migrate/migrate_iids.rake b/lib/tasks/migrate/migrate_iids.rake
index 4f2486157b7..fc2cea8c016 100644
--- a/lib/tasks/migrate/migrate_iids.rake
+++ b/lib/tasks/migrate/migrate_iids.rake
@@ -24,7 +24,7 @@ task migrate_iids: :environment do
       else
         print 'F'
       end
-    rescue => ex
+    rescue
       print 'F'
     end
   end
diff --git a/lib/tasks/services.rake b/lib/tasks/services.rake
index 39541c0b9c6..56b81106c5f 100644
--- a/lib/tasks/services.rake
+++ b/lib/tasks/services.rake
@@ -76,23 +76,23 @@ namespace :services do
         end
 
         param_hash
-      end.sort_by { |p| p[:required] ? 0 : 1 }
+      end
+      service_hash[:params].sort_by! { |p| p[:required] ? 0 : 1 }
 
-      puts "Collected data for: #{service.title}, #{Time.now-service_start}"
+      puts "Collected data for: #{service.title}, #{Time.now - service_start}"
       service_hash
     end
 
     doc_start = Time.now
     doc_path = File.join(Rails.root, 'doc', 'api', 'services.md')
 
-    result = ERB.new(services_template, 0 , '>')
+    result = ERB.new(services_template, 0, '>')
       .result(OpenStruct.new(services: services).instance_eval { binding })
 
     File.open(doc_path, 'w') do |f|
       f.write result
     end
 
-    puts "write a new service.md to: #{doc_path.to_s}, #{Time.now-doc_start}"
-
+    puts "write a new service.md to: #{doc_path}, #{Time.now - doc_start}"
   end
 end
diff --git a/lib/tasks/sidekiq.rake b/lib/tasks/sidekiq.rake
index d1f6ed87704..dd9ce86f7ca 100644
--- a/lib/tasks/sidekiq.rake
+++ b/lib/tasks/sidekiq.rake
@@ -1,21 +1,21 @@
 namespace :sidekiq do
   desc "GitLab | Stop sidekiq"
   task :stop do
-    system *%W(bin/background_jobs stop)
+    system(*%w(bin/background_jobs stop))
   end
 
   desc "GitLab | Start sidekiq"
   task :start do
-    system *%W(bin/background_jobs start)
+    system(*%w(bin/background_jobs start))
   end
 
   desc 'GitLab | Restart sidekiq'
   task :restart do
-    system *%W(bin/background_jobs restart)
+    system(*%w(bin/background_jobs restart))
   end
 
   desc "GitLab | Start sidekiq with launchd on Mac OS X"
   task :launchd do
-    system *%W(bin/background_jobs start_no_deamonize)
+    system(*%w(bin/background_jobs start_no_deamonize))
   end
 end
diff --git a/lib/tasks/spec.rake b/lib/tasks/spec.rake
index 2cf7a25a0fd..602c60be828 100644
--- a/lib/tasks/spec.rake
+++ b/lib/tasks/spec.rake
@@ -4,8 +4,8 @@ namespace :spec do
   desc 'GitLab | Rspec | Run request specs'
   task :api do
     cmds = [
-      %W(rake gitlab:setup),
-      %W(rspec spec --tag @api)
+      %w(rake gitlab:setup),
+      %w(rspec spec --tag @api)
     ]
     run_commands(cmds)
   end
@@ -13,8 +13,8 @@ namespace :spec do
   desc 'GitLab | Rspec | Run feature specs'
   task :feature do
     cmds = [
-      %W(rake gitlab:setup),
-      %W(rspec spec --tag @feature)
+      %w(rake gitlab:setup),
+      %w(rspec spec --tag @feature)
     ]
     run_commands(cmds)
   end
@@ -22,8 +22,8 @@ namespace :spec do
   desc 'GitLab | Rspec | Run model specs'
   task :models do
     cmds = [
-      %W(rake gitlab:setup),
-      %W(rspec spec --tag @models)
+      %w(rake gitlab:setup),
+      %w(rspec spec --tag @models)
     ]
     run_commands(cmds)
   end
@@ -31,8 +31,8 @@ namespace :spec do
   desc 'GitLab | Rspec | Run service specs'
   task :services do
     cmds = [
-      %W(rake gitlab:setup),
-      %W(rspec spec --tag @services)
+      %w(rake gitlab:setup),
+      %w(rspec spec --tag @services)
     ]
     run_commands(cmds)
   end
@@ -40,8 +40,8 @@ namespace :spec do
   desc 'GitLab | Rspec | Run lib specs'
   task :lib do
     cmds = [
-      %W(rake gitlab:setup),
-      %W(rspec spec --tag @lib)
+      %w(rake gitlab:setup),
+      %w(rspec spec --tag @lib)
     ]
     run_commands(cmds)
   end
@@ -49,8 +49,8 @@ namespace :spec do
   desc 'GitLab | Rspec | Run other specs'
   task :other do
     cmds = [
-      %W(rake gitlab:setup),
-      %W(rspec spec --tag ~@api --tag ~@feature --tag ~@models --tag ~@lib --tag ~@services)
+      %w(rake gitlab:setup),
+      %w(rspec spec --tag ~@api --tag ~@feature --tag ~@models --tag ~@lib --tag ~@services)
     ]
     run_commands(cmds)
   end
@@ -59,14 +59,14 @@ end
 desc "GitLab | Run specs"
 task :spec do
   cmds = [
-    %W(rake gitlab:setup),
-    %W(rspec spec),
+    %w(rake gitlab:setup),
+    %w(rspec spec),
   ]
   run_commands(cmds)
 end
 
 def run_commands(cmds)
   cmds.each do |cmd|
-    system({'RAILS_ENV' => 'test', 'force' => 'yes'}, *cmd) or raise("#{cmd} failed!")
+    system({ 'RAILS_ENV' => 'test', 'force' => 'yes' }, *cmd) || raise("#{cmd} failed!")
   end
 end
diff --git a/lib/tasks/spinach.rake b/lib/tasks/spinach.rake
index 8dbfa7751dc..19ff13f06c0 100644
--- a/lib/tasks/spinach.rake
+++ b/lib/tasks/spinach.rake
@@ -35,7 +35,7 @@ task :spinach do
 end
 
 def run_system_command(cmd)
-  system({'RAILS_ENV' => 'test', 'force' => 'yes'}, *cmd)
+  system({ 'RAILS_ENV' => 'test', 'force' => 'yes' }, *cmd)
 end
 
 def run_spinach_command(args)