用于本地预编译资产的自定义rake任务rails 3.2.8

Question

我需要在本地计算机上预编译资源，并在使用资源预编译的capistrano进行部署之后。

我已经加入到development.rb：

config.assets.prefix = "/dev-assets" 

也，我已经加入到application.rb

config.assets.initialize_on_precompile = false 

除了手动执行rake assets:precompile，我想使从自动化Capistrano的文件，清理资产，上传此过程...等等。我曾尝试与此自定义任务

namespace :assets do 
    task :precompile, :roles => :web, :except => { :no_release => true } do 
     from = source.next_revision(current_revision) 
     if capture("cd #{latest_release} && #{source.local.log(from)} vendor/assets/ app/assets/ | wc -l").to_i > 0 
     run_locally "bundle exec rake assets:precompile" 
     run_locally "rsync -zvrh --progress -e 'ssh -i #{ssh_options[:keys][0]}' public/assets #{user}{server}:#{shared_path}" 
     puts "cleaning up locally compiled assets" 
     run_locally "bundle exec rake assets:clean" 
     else 
     puts "Skipping asset pre-compilation because there were no asset changes" 
     end 
    end 
    end 

但我得到一个错误：

/config/deploy.rb:73:in `block (3 levels) in load': undefined method `[]' for nil:NilClass (NoMethodError) 

我怎么能预编译本地和上传与Capistrano的后资产？

Answer 1

的问题是固定的：

这是我的自定义任务工作正常：

namespace :assets do 
    task :precompile, :roles => :web, :except => { :no_release => true } do 
     from = source.next_revision(current_revision) 
     if capture("cd #{latest_release} && #{source.local.log(from)} vendor/assets/ app/assets/ | wc -l").to_i > 0 
     run_locally("rm -rf public/assets/*") 
     run_locally "bundle exec rake assets:precompile" 
     find_servers_for_task(current_task).each do |server| 
     run_locally "rsync -vr --exclude='.DS_Store' public/assets #{user}@#{server.host}:#{shared_path}/" 
     end 
     else 
     puts.info "Skipping asset pre-compilation because there were no asset changes" 
     end 
    end 
    end 

Answer 2

它看起来像logger.info在else块是问题。

如果你需要由于其他原因，在Capistrano的记录器，你可能需要手动初始化它，因为你没有真正在服务器上运行。但它可能会更容易只是打印到控制台（当您与您的其他消息做上述

更换

logger.info "Skipping ..." 

与

puts "Skipping ..."