"missing argument -c" 当通过 Mina 重启 Unicorn 时

Question

我正在尝试使用 Mina 将我的应用程序部署到我的服务器，我需要服务器自动重启。但不幸的是，这不起作用，我不知道为什么。这是我正在尝试的：

require 'mina/bundler' 
require 'mina/rvm' 
require 'mina/rails' 
require 'mina/git' 

...

set :unicorn_conf, "#{shared_path}/config/unicorn.rb"
set :unicorn_pid, "#{deploy_to}/current/tmp/pids/unicorn.pid"

...
task :environment do
  invoke :'rvm:use[ruby-2.2.3]'
end

task deploy: :environment do
  deploy do
    # Put things that prepare the empty release folder here.
    # Commands queued here will be run on a new release directory.
    invoke :'git:clone'
    invoke :'deploy:link_shared_paths' 
    invoke :'bundle:install' 

    invoke :'rails:db_migrate' 
    invoke :'rails:assets_precompile' 

    invoke :restart_server
  end
end

task :restart_server do
  if File.exists? unicorn_pid
    queue 'kill `cat #{unicorn_pid}`'
  end
  queue 'bundle exec unicorn -c #{deploy_to}/#{unicorn_conf} -E production -D'
  puts "bundle exec unicorn -c #{deploy_to}/#{:unicorn_conf} -E production -D"
end

这最后一个 puts 语句，我只是为了调试它而打印出我想要的字符串。但我仍然收到此错误：

 /home/webuser/tmpcms/tmp/build-145333668721611/vendor/bundle/ruby/2.2.0/gems/unicorn-5.0.1/bin/unicorn:110:in `block in <top (required)>': missing argument: -c (OptionParser::MissingArgument)
   from /home/webuser/tmpcms/tmp/build-145333668721611/vendor/bundle/ruby/2.2.0/gems/unicorn-5.0.1/bin/unicorn:10:in `new'
   from /home/webuser/tmpcms/tmp/build-145333668721611/vendor/bundle/ruby/2.2.0/gems/unicorn-5.0.1/bin/unicorn:10:in `<top (required)>'
   from /home/webuser/tmpcms/tmp/build-145333668721611/vendor/bundle/ruby/2.2.0/bin/unicorn:23:in `load'
   from /home/webuser/tmpcms/tmp/build-145333668721611/vendor/bundle/ruby/2.2.0/bin/unicorn:23:in `<main>'
   !       bash: line 209: log: command not found
!     ERROR: Deploy failed.

我不知道是什么原因造成的，你能帮我解决一下吗？

UPD：好像是变量替换和fetch函数的东西，但我还是不明白哪里出了问题。这是我测试过的：

task :restart_server => :environment do
  if File.exists? unicorn_pid
    queue 'kill `cat #{unicorn_pid}`'
  end
  queue 'cd /home/webuser/tmpcms/current; pwd; bundle exec unicorn -c #{deploy_to}/#{unicorn_conf} -E production -D'
end

bundle exec 部分不起作用，它不执行它而是打印 Connection closed 。如果我将 cd 命令中的路径替换为 cd #{deploy_to} 或 cd #{fetch(:deploy_to)}

Answer 1

天哪，答案太简单了。我忘记了我使用的是单引号而不是双引号，并且没有在需要时替换变量。只需将单引号替换为双引号即可解决。

"missing argument -c" 当通过 Mina 重启 Unicorn 时

"missing argument -c" when restarting Unicorn via Mina

deployment

ruby-on-rails

unicorn