rails.rb in capper-0.9.0

- old
+ new
@@ -1,50 +1,62 @@
+load "capper/ruby"
+
 _cset(:rails_env, "production")
 
 _cset(:asset_pipeline, true)
 _cset(:asset_env, "RAILS_GROUPS=assets")
-_cset(:assets_prefix, "assets")
 
-set(:normalize_asset_timestamps) do
-  if asset_pipeline
-    false
-  else
-    true
-  end
-end
+set(:internal_shared_children, fetch(:internal_shared_children, []) | %w(assets))
 
-before 'deploy:finalize_update', 'rails:assets:symlink'
-after 'deploy:update_code', 'rails:assets:precompile'
+set(:internal_symlinks, fetch(:internal_symlinks, {}).merge({
+  "assets" => "public/assets",
+  "log" => "log",
+  "pids" => "tmp/pids",
+  "system" => "public/system",
+}))
+
 after 'deploy:update_code', 'rails:setup'
+after 'deploy:update_code', 'rails:assets:precompile'
 
+before 'deploy:migrate', 'rails:migrate'
+
 namespace :rails do
   desc "Generate rails configuration and helpers"
   task :setup, :roles => :app, :except => { :no_release => true } do
     upload_template_file("rails.console.sh",
                          File.join(bin_path, "con"),
                          :mode => "0755")
   end
 
-  namespace :assets do
-    desc <<-DESC
-      [internal] This task will set up a symlink to the shared directory \
-      for the assets directory. Assets are shared across deploys to avoid \
-      mid-deploy mismatches between old application html asking for assets \
-      and getting a 404 file not found error. The assets cache is shared \
-      for efficiency. If you cutomize the assets path prefix, override the \
-      :assets_prefix variable to match.
-    DESC
-    task :symlink, :roles => [:web, :asset], :except => { :no_release => true } do
-      if asset_pipeline
-        run <<-CMD
-          rm -rf #{latest_release}/public/#{assets_prefix} &&
-          mkdir -p #{latest_release}/public &&
-          mkdir -p #{shared_path}/assets &&
-          ln -s #{shared_path}/assets #{latest_release}/public/#{assets_prefix}
-        CMD
+  desc <<-DESC
+    Run the migrate rake task. By default, it runs this in most recently \
+    deployed version of the app. However, you can specify a different release \
+    via the migrate_target variable, which must be one of :latest (for the \
+    default behavior), or :current (for the release indicated by the \
+    `current' symlink). Strings will work for those values instead of symbols, \
+    too. You can also specify additional environment variables to pass to rake \
+    via the migrate_env variable. Finally, you can specify the full path to the \
+    rake executable by setting the rake variable. The defaults are:
+
+      set :rake,           "rake"
+      set :rails_env,      "production"
+      set :migrate_env,    ""
+      set :migrate_target, :latest
+  DESC
+  task :migrate, :roles => :db, :only => { :primary => true } do
+    migrate_env = fetch(:migrate_env, "")
+    migrate_target = fetch(:migrate_target, :latest)
+
+    directory = case migrate_target.to_sym
+      when :current then current_path
+      when :latest  then latest_release
+      else raise ArgumentError, "unknown migration target #{migrate_target.inspect}"
       end
-    end
 
+    run "cd #{directory} && #{rake} RAILS_ENV=#{rails_env} #{migrate_env} db:migrate"
+  end
+
+  namespace :assets do
     desc <<-DESC
       Run the asset precompilation rake task. You can specify the full path \
       to the rake executable by setting the rake variable. You can also \
       specify additional environment variables to pass to rake via the \
       asset_env variable. The defaults are: