Reinstall shell on the test env if it's outdated

config/initializers/5_backend.rb

-required_version = Gitlab::VersionInfo.parse(Gitlab::Shell.version_required)
-current_version = Gitlab::VersionInfo.parse(Gitlab::Shell.new.version)
+unless Rails.env.test?
+  required_version = Gitlab::VersionInfo.parse(Gitlab::Shell.version_required)
+  current_version = Gitlab::VersionInfo.parse(Gitlab::Shell.new.version)
 
-unless current_version.valid? && required_version <= current_version
-  warn "WARNING: This version of GitLab depends on gitlab-shell #{required_version}, but you're running #{current_version}. Please update gitlab-shell."
+  unless current_version.valid? && required_version <= current_version
+    warn "WARNING: This version of GitLab depends on gitlab-shell #{required_version}, but you're running #{current_version}. Please update gitlab-shell."
+  end
 end

spec/support/test_env.rb

@@ -120,18 +120,21 @@ module TestEnv
   end
 
   def setup_gitlab_shell
-    unless File.directory?(Gitlab.config.gitlab_shell.path)
-      unless system('rake', 'gitlab:shell:install')
-        raise 'Can`t clone gitlab-shell'
-      end
+    shell_needs_update = component_needs_update?(Gitlab.config.gitlab_shell.path,
+      Gitlab::Shell.version_required)
+
+    unless !shell_needs_update || system('rake', 'gitlab:shell:install')
+      raise 'Can`t clone gitlab-shell'
     end
   end
 
   def setup_gitaly
     socket_path = Gitlab::GitalyClient.address('default').sub(/\Aunix:/, '')
     gitaly_dir = File.dirname(socket_path)
+    gitaly_needs_update = component_needs_update?(gitaly_dir,
+      Gitlab::GitalyClient.expected_server_version)
 
-    unless !gitaly_needs_update?(gitaly_dir) || system('rake', "gitlab:gitaly:install[#{gitaly_dir}]")
+    unless !gitaly_needs_update || system('rake', "gitlab:gitaly:install[#{gitaly_dir}]")
       raise "Can't clone gitaly"
     end
 
@@ -261,13 +264,13 @@ module TestEnv
     end
   end
 
-  def gitaly_needs_update?(gitaly_dir)
-    gitaly_version = File.read(File.join(gitaly_dir, 'VERSION')).strip
+  def component_needs_update?(component_folder, expected_version)
+    version = File.read(File.join(component_folder, 'VERSION')).strip
 
     # Notice that this will always yield true when using branch versions
     # (`=branch_name`), but that actually makes sure the server is always based
     # on the latest branch revision.
-    gitaly_version != Gitlab::GitalyClient.expected_server_version
+    version != expected_version
   rescue Errno::ENOENT
     true
   end