capistrano 3 pury ruby​​錯誤—不知道如何構建任務'：check'

Question

我在ruby腳本文檔中關注了capistrano 。

我的文件：

$ ls
deploy.rb  Gemfile  Gemfile.lock

capistrano版本：

$ cat Gemfile | grep -i cap
  gem "capistrano", "3.2.1"

紅寶石版本：

$ bundle exec ruby --version
ruby 2.1.2p95 (2014-05-08 revision 45877) [x86_64-linux-gnu]

紅寶石腳本：

require "capistrano/all"
set :application, "my_app"
set :deploy_to, "/home/my_app"
set :tmp_dir, "/tmp"
set :keep_releases, 5
SSHKit::Backend::Netssh.configure { |ssh| ssh.ssh_options = { forward_agent: true,  port: 22, user: "deploy_user", keys: "/ssh/key" } }
server "host.example.com", roles: [:myrole]
require "capistrano/setup"
require "capistrano/deploy"
cap_gem_dir = File.join Gem::Specification.find_by_name("capistrano").gem_dir, "lib", "capistrano", "tasks", "*.rake"
Dir.glob(cap_gem_dir).each { |r| import r }
Capistrano::Application.invoke("deploy") 

執行：

$ bundle exec ruby deploy.rb 
** Invoke deploy (first_time)
** Execute deploy
** Invoke deploy:starting (first_time)
** Execute deploy:starting
** Invoke deploy:check (first_time)
** Execute deploy:check
/var/lib/gems/2.1.0/gems/rake-10.3.2/lib/rake/task_manager.rb:62:in `[]': Don't know how to build task ':check' (RuntimeError)
    from /var/lib/gems/2.1.0/gems/rake-10.3.2/lib/rake/task.rb:353:in `[]'
    from /var/lib/gems/2.1.0/gems/capistrano-3.2.1/lib/capistrano/dsl.rb:15:in `invoke'
    from /var/lib/gems/2.1.0/gems/capistrano-3.2.1/lib/capistrano/tasks/deploy.rake:36:in `block (2 levels) in <top (required)>'
    from /var/lib/gems/2.1.0/gems/rake-10.3.2/lib/rake/task.rb:240:in `call'
    from /var/lib/gems/2.1.0/gems/rake-10.3.2/lib/rake/task.rb:240:in `block in execute'
    from /var/lib/gems/2.1.0/gems/rake-10.3.2/lib/rake/task.rb:235:in `each'
    from /var/lib/gems/2.1.0/gems/rake-10.3.2/lib/rake/task.rb:235:in `execute'
    from /var/lib/gems/2.1.0/gems/rake-10.3.2/lib/rake/task.rb:179:in `block in invoke_with_call_chain'
    from /usr/lib/ruby/2.1.0/monitor.rb:211:in `mon_synchronize'
    from /var/lib/gems/2.1.0/gems/rake-10.3.2/lib/rake/task.rb:172:in `invoke_with_call_chain'
    from /var/lib/gems/2.1.0/gems/rake-10.3.2/lib/rake/task.rb:165:in `invoke'
    from /var/lib/gems/2.1.0/gems/capistrano-3.2.1/lib/capistrano/dsl.rb:15:in `invoke'
    from /var/lib/gems/2.1.0/gems/capistrano-3.2.1/lib/capistrano/tasks/deploy.rake:4:in `block (2 levels) in <top (required)>'
    from /var/lib/gems/2.1.0/gems/rake-10.3.2/lib/rake/task.rb:240:in `call'
    from /var/lib/gems/2.1.0/gems/rake-10.3.2/lib/rake/task.rb:240:in `block in execute'
    from /var/lib/gems/2.1.0/gems/rake-10.3.2/lib/rake/task.rb:235:in `each'
    from /var/lib/gems/2.1.0/gems/rake-10.3.2/lib/rake/task.rb:235:in `execute'
    from /var/lib/gems/2.1.0/gems/rake-10.3.2/lib/rake/task.rb:179:in `block in invoke_with_call_chain'
    from /usr/lib/ruby/2.1.0/monitor.rb:211:in `mon_synchronize'
    from /var/lib/gems/2.1.0/gems/rake-10.3.2/lib/rake/task.rb:172:in `invoke_with_call_chain'
    from /var/lib/gems/2.1.0/gems/rake-10.3.2/lib/rake/task.rb:165:in `invoke'
    from /var/lib/gems/2.1.0/gems/capistrano-3.2.1/lib/capistrano/dsl.rb:15:in `invoke'
    from /var/lib/gems/2.1.0/gems/capistrano-3.2.1/lib/capistrano/tasks/framework.rake:65:in `block (2 levels) in <top (required)>'
    from /var/lib/gems/2.1.0/gems/capistrano-3.2.1/lib/capistrano/tasks/framework.rake:64:in `each'
    from /var/lib/gems/2.1.0/gems/capistrano-3.2.1/lib/capistrano/tasks/framework.rake:64:in `block in <top (required)>'
    from /var/lib/gems/2.1.0/gems/rake-10.3.2/lib/rake/task.rb:240:in `call'
    from /var/lib/gems/2.1.0/gems/rake-10.3.2/lib/rake/task.rb:240:in `block in execute'
    from /var/lib/gems/2.1.0/gems/rake-10.3.2/lib/rake/task.rb:235:in `each'
    from /var/lib/gems/2.1.0/gems/rake-10.3.2/lib/rake/task.rb:235:in `execute'
    from /var/lib/gems/2.1.0/gems/rake-10.3.2/lib/rake/task.rb:179:in `block in invoke_with_call_chain'
    from /usr/lib/ruby/2.1.0/monitor.rb:211:in `mon_synchronize'
    from /var/lib/gems/2.1.0/gems/rake-10.3.2/lib/rake/task.rb:172:in `invoke_with_call_chain'
    from /var/lib/gems/2.1.0/gems/rake-10.3.2/lib/rake/task.rb:165:in `invoke'
    from /var/lib/gems/2.1.0/gems/capistrano-3.2.1/lib/capistrano/dsl.rb:15:in `invoke'
    from deploy.rb:13:in `<main>'

盡管我不確定，但似乎缺少名稱空間- Don't know how to build task ':check'其中':check'應該為'deploy:check' 。

更新：

似乎必須設置scm變量。

$ grep -nH scm /var/lib/gems/2.1.0/gems/capistrano-3.2.1/lib/capistrano/tasks/deploy.rake
/var/lib/gems/2.1.0/gems/capistrano-3.2.1/lib/capistrano/tasks/deploy.rake:9:    invoke "#{scm}:create_release"
/var/lib/gems/2.1.0/gems/capistrano-3.2.1/lib/capistrano/tasks/deploy.rake:36:    invoke "#{scm}:check"
/var/lib/gems/2.1.0/gems/capistrano-3.2.1/lib/capistrano/tasks/deploy.rake:205:    invoke "#{scm}:set_current_revision"

添加set :scm, "deploy"讓它繼續，但是隨后失敗

/var/lib/gems/2.1.0/gems/rake-10.3.2/lib/rake/task_manager.rb:62:in `[]': Don't know how to build task 'deploy:create_release' (RuntimeError)

您能幫我了解什么是錯誤以及如何解決嗎？

謝謝。

Answer 1

我認為您必須將scm選項設置為:git 。 因此： set :scm, :git 。 至少這是Capistrano本身的默認值。

另外，為什么不按照capistrano pure ruby​​ guide中的說明設置stage選項？

該頁面明確表示需要在加載setup和deploy文件之前先對stage選項進行setup 。

請注意，需求順序很重要，因為在加載設置和部署之前需要設置階段。

除此之外，您在這里做的很漂亮（您是我知道的第一個這樣做的人）。