capistrano.rb in local_precompile-0.3.1

- old
+ new

@@ -1,16 +1,18 @@
 Rake::Task['deploy:compile_assets'].clear
 
 namespace :load do
   task :defaults do
-    set :assets_dir,       'public/assets'
-    set :packs_dir,        'public/packs'
-    set :rsync_cmd,        'rsync -av --delete'
-    set :assets_role,      'web'
-    set :skip_assets,       ENV['skip_assets'] || false
+    set :assets_dir, 'public/assets'
+    set :packs_dir, 'public/packs'
+    set :rsync_cmd, 'rsync -av --delete'
+    set :assets_role, 'web'
+    set :skip_assets, ENV['skip_assets'] || false
+    set :package_file, fetch(:package_file, 'package.json')
 
     unless fetch(:skip_assets)
+      before 'deploy:check:directories', 'deploy:assets:validate'
       after 'bundler:install', 'deploy:assets:prepare'
       after 'deploy:assets:prepare', 'deploy:assets:rsync'
       after 'deploy:assets:rsync', 'deploy:assets:cleanup'
     end
   end
@@ -26,13 +28,15 @@
       end
     end
 
     desc 'Actually precompile the assets locally'
     task :prepare do
+      invoke 'deploy:assets:cleanup'
+
       run_locally do
-        execute 'RAILS_ENV=production DB_ADAPTER=nulldb rake assets:clean'
-        execute 'RAILS_ENV=production DB_ADAPTER=nulldb rake assets:precompile'
+        execute 'ASSETS_PRECOMPILE=true RAILS_ENV=production DB_ADAPTER=nulldb rake assets:clean'
+        execute 'ASSETS_PRECOMPILE=true RAILS_ENV=production DB_ADAPTER=nulldb rake assets:precompile'
       end
     end
 
     desc 'Performs rsync to app servers'
     task :rsync do
@@ -47,9 +51,64 @@
           commands.each do |command|
             if dry_run?
               SSHKit.config.output.info command
             else
               execute command
+            end
+          end
+        end
+      end
+    end
+
+    desc 'Check frontend tools valid versions'
+    task :validate do
+      set :package_file, fetch(:package_file, 'package.json')
+
+      on roles(fetch(:assets_role)) do
+        run_locally do
+          invoke 'deploy:assets:node:presence'
+          invoke 'deploy:assets:yarn:presence'
+
+          enabled_node_version = capture('node', '--version').tr('v', '')
+          enabled_yarn_version = capture('yarn', '--version').tr('v', '')
+          package = JSON.parse File.read(fetch(:package_file)), symbolize_names: true, quirks_mode: true
+          needed_node_version, needed_yarn_version = package[:engines].values_at(:node, :yarn)
+
+          if enabled_node_version != needed_node_version
+            warn 'Node.js version is wrong'
+            exit 1
+          end
+
+          if enabled_yarn_version != needed_yarn_version
+            warn 'Yarn version is wrong'
+            exit 1
+          end
+
+          info 'Frontend engine versions is ok'
+        end
+      end
+    end
+
+    namespace :node do
+      task :presence do
+        on roles(fetch(:assets_role)) do
+          run_locally do
+            unless test('node', '--version')
+              warn 'Node.js is not installed'
+              exit 1
+            end
+          end
+        end
+      end
+    end
+
+    namespace :yarn do
+      task :presence do
+        on roles(fetch(:assets_role)) do
+          run_locally do
+            unless test('yarn', '--version')
+              warn 'Yarn is not installed'
+              exit 1
             end
           end
         end
       end
     end