From e64572b84cf87432324725adb4cadca61ba7e39f Mon Sep 17 00:00:00 2001
From: Martin Emde <me@martinemde.com>
Date: Thu, 9 Oct 2014 16:16:17 -0700
Subject: [PATCH] Rough draft of sync_assets feature

---
 lib/engineyard-serverside/configuration.rb |  2 ++
 lib/engineyard-serverside/deploy.rb        |  2 +-
 lib/engineyard-serverside/rails_assets.rb  | 14 +++++++++++++-
 3 files changed, 16 insertions(+), 2 deletions(-)

diff --git a/lib/engineyard-serverside/configuration.rb b/lib/engineyard-serverside/configuration.rb
index ac0698b5..5db60f30 100644
--- a/lib/engineyard-serverside/configuration.rb
+++ b/lib/engineyard-serverside/configuration.rb
@@ -102,7 +102,9 @@ def fetch_deprecated(attr, replacement, default)
       def_option :services_check_command, "which /usr/local/ey_resin/ruby/bin/ey-services-setup >/dev/null 2>&1"
       def_option(:services_setup_command) { "/usr/local/ey_resin/ruby/bin/ey-services-setup #{app}" }
 
+      # experimental, need feedback from people using it, feature implementation subject to change or removal
       def_option :restart_groups,         1
+      def_boolean_option :sync_assets,    false
 
       DEFAULT_KEEP_RELEASES = 3
 
diff --git a/lib/engineyard-serverside/deploy.rb b/lib/engineyard-serverside/deploy.rb
index 78b2e36f..a0ae75e9 100644
--- a/lib/engineyard-serverside/deploy.rb
+++ b/lib/engineyard-serverside/deploy.rb
@@ -34,7 +34,7 @@ def cached_deploy
           setup_services
           symlink_configs
           setup_sqlite3_if_necessary
-          run_with_callbacks(:compile_assets) # defined in RailsAssetSupport
+          run_with_callbacks(:compile_assets)
           enable_maintenance_page
           run_with_callbacks(:migrate)
           callback(:before_symlink)
diff --git a/lib/engineyard-serverside/rails_assets.rb b/lib/engineyard-serverside/rails_assets.rb
index 35344efb..f5f4eaca 100644
--- a/lib/engineyard-serverside/rails_assets.rb
+++ b/lib/engineyard-serverside/rails_assets.rb
@@ -54,7 +54,19 @@ def run_precompile_assets_task
         asset_strategy.prepare do
           cd   = "cd #{paths.active_release}"
           task = "PATH=#{paths.binstubs}:$PATH #{framework_envs} #{precompile_assets_command}"
-          runner.run "#{cd} && #{task}"
+
+          # This is a hack right now, but I haven't iterated over it enough for a good solution yet.
+          if config.sync_assets?
+            shell.status "Compiling assets once on localhost (sync_assets: true)"
+            shell.logged_system("sh -l -c '#{cd} && #{task}'")
+
+            shell.status "Syncing assets to other remote servers (sync_assets: true)"
+            runner.servers.remote.run_for_each do |server|
+              server.sync_directory_command(paths.public_assets)
+            end
+          else
+            runner.run "#{cd} && #{task}"
+          end
         end
       end