Capistrano 3.8.1从windows部署

Question

我曾尝试将我们的capistrano2脚本升级到最新的capistrano，但是却很难让它工作起来。为了限制转换中的任何问题，我启动了一个空项目并执行了cap install。

添加了一个自定义任务以在机器上本地运行，并进行了尝试。同样的结果。

这就是我遇到的错误：Errno::ENOENT: No such file or directory - /usr/bin/env dir

确切说明：

1) mkdir capdemo

2)光盘演示

( 3)盖安装

4)使用以下内容在lib/capistrano/tasks/foo.rake下创建文件：

namespace :foo do desc "Foo" task :local do run_locally do execute :dir end end end

5)运行cap staging foo:local

我在windows 10，ruby 2.2.4和capistrano 3.8.1上运行

```mr@MR-LAPTOP MINGW64 ~/inpay_git/capdemo

$：本地-p --跟踪

**调用暂存(first_time)

**执行阶段

**调用加载:默认值(first_time)

**执行load:默认值

**调用foo:local (first_time)

**执行foo:本地

配置变量集：:print_config_variables => true

配置变量集：:stage =>：stage

配置变量集：:scm => :"default-git“

配置变量集：：分支=>“主”

配置变量集：# (lambda)> )

配置变量集：:tmp_dir => "/tmp“

配置变量集：:default_env => {}

配置变量集：:keep_releases => 5

配置变量集：：=>格式:airbrussh

配置变量集：:log_level => :debug

配置变量集：:pty => false

配置变量集：# (lambda)> )

配置变量集：：=>格式:airbrussh

配置变量集：:git_shallow_clone => false

配置变量集：# (lambda)> )

配置变量集：# (lambda)> )

配置变量集：:application => "my_app_name“

配置变量集：:repo_url => "git@example.com:me/my_repo.git“

配置变量集：:scm => :git

00:00 foo:本地人

  01 dir

帽子被取消了！

Errno::ENOENT:没有这样的文件或目录- /usr/bin/env dir

C:/ruby/224/lib/ruby/2.2.0/open3.rb:193:在“产卵”中

C:/Ruby/224/lib/ruby/2.2.0/open3.rb:193:in `popen_run‘

C:/ruby/224/lib/ruby/2.2.0/open3.rb:93：“popen3”

C:/Ruby/224/lib/ruby/gems/2.2.0/gems/sshkit-1.13.1/lib/sshkit/backends/local.rb:44:in `execute_command‘

C:/Ruby/224/lib/ruby/gems/2.2.0/gems/sshkit-1.13.1/lib/sshkit/backends/abstract.rb:141:in‘阻止create_command_and_execute’

C:/Ruby/224/lib/ruby/gems/2.2.0/gems/sshkit-1.13.1/lib/sshkit/backends/abstract.rb:141:in‘`tap’

C:/Ruby/224/lib/ruby/gems/2.2.0/gems/sshkit-1.13.1/lib/sshkit/backends/abstract.rb:141:in `create_command_and_execute‘

C:/Ruby/224/lib/ruby/gems/2.2.0/gems/sshkit-1.13.1/lib/sshkit/backends/abstract.rb:74:in“执行”

C:/Users/mr/inpay_git/capdemo/lib/capistrano/tasks/foo.rake:5:in在中的块(3级)

C:/Ruby/224/lib/ruby/gems/2.2.0/gems/sshkit-1.13.1/lib/sshkit/backends/abstract.rb:29:in `instance_exec‘

C:/Ruby/224/lib/ruby/gems/2.2.0/gems/sshkit-1.13.1/lib/sshkit/backends/abstract.rb:29:in‘`run’

C:/Ruby/224/lib/ruby/gems/2.2.0/gems/capistrano-3.8.1/lib/capistrano/dsl.rb:70:in `run_locally‘

中的C:/Users/mr/inpay_git/capdemo/lib/capistrano/tasks/foo.rake:4:in `块(2个级别)‘

C:/Ruby/224/lib/ruby/gems/2.2.0/gems/rake-12.0.0/lib/rake/task.rb:250:in‘`call’

C:/Ruby/224/lib/ruby/gems/2.2.0/gems/rake-12.0.0/lib/rake/task.rb:250:in‘阻止执行’

C:/Ruby/224/lib/ruby/gems/2.2.0/gems/rake-12.0.0/lib/rake/task.rb:250:in‘’

C:/Ruby/224/lib/ruby/gems/2.2.0/gems/rake-12.0.0/lib/rake/task.rb:250:in“执行”

C:/Ruby/224/lib/ruby/gems/2.2.0/gems/airbrussh-1.2.0/lib/airbrussh/rake/context.rb:62:in“执行”

C:/Ruby/224/lib/ruby/gems/2.2.0/gems/rake-12.0.0/lib/rake/task.rb:194:in‘阻止invoke_with_call_chain’

C:/ruby/224/lib/ruby/2.2.0/nanor.rb:211:in `mon_synchronize‘

C:/Ruby/224/lib/ruby/gems/2.2.0/gems/rake-12.0.0/lib/rake/task.rb:187:in `invoke_with_call_chain‘

C:/Ruby/224/lib/ruby/gems/2.2.0/gems/rake-12.0.0/lib/rake/task.rb:180:in‘调用’

C:/Ruby/224/lib/ruby/gems/2.2.0/gems/rake-12.0.0/lib/rake/application.rb:152:in `invoke_task‘

C:/Ruby/224/lib/ruby/gems/2.2.0/gems/rake-12.0.0/lib/rake/application.rb:108:in‘top_level中的块(2个级别)’

C:/Ruby/224/lib/ruby/gems/2.2.0/gems/rake-12.0.0/lib/rake/application.rb:108:in‘’

C:/Ruby/224/lib/ruby/gems/2.2.0/gems/rake-12.0.0/lib/rake/application.rb:108:in‘阻止top_level’

C:/Ruby/224/lib/ruby/gems/2.2.0/gems/rake-12.0.0/lib/rake/application.rb:117:in `run_with_threads‘

C:/Ruby/224/lib/ruby/gems/2.2.0/gems/rake-12.0.0/lib/rake/application.rb:102:in `top_level‘

C:/Ruby/224/lib/ruby/gems/2.2.0/gems/rake-12.0.0/lib/rake/application.rb:80:in“运行中的阻塞”

C:/Ruby/224/lib/ruby/gems/2.2.0/gems/rake-12.0.0/lib/rake/application.rb:178:in `standard_exception_handling‘

C:/Ruby/224/lib/ruby/gems/2.2.0/gems/rake-12.0.0/lib/rake/application.rb:77:in‘`run’

C:/Ruby/224/lib/ruby/gems/2.2.0/gems/capistrano-3.8.1/lib/capistrano/application.rb:14:in‘`run’

C:/Ruby/224/lib/ruby/gems/2.2.0/gems/capistrano-3.8.1/bin/cap:3:in `‘

C:/Ruby/224/bin/cap:22:in‘`load’

C:/Ruby/224/bin/cap:22:in

任务:顶级=> foo:local``

Answer 1

默认情况下，用Capistrano执行的命令都以/usr/bin/env作为前缀。如果系统上没有/usr/bin/env，则该命令将失败。我不熟悉Windows，所以我不知道这是否是一个无法克服的问题。

如果要删除/usr/bin/env前缀，可以修改Capistrano的“命令映射”以删除所有默认行为：

# In deploy.rb
# NOT RECOMMENDED
SSHKit.config.command_map = SSHKit::CommandMap.new({})

但这将影响本地和远程命令，这是不可取的。同样，Capistrano假设您希望在本地环境和远程环境中以相同的方式运行。

如果这些限制和解决办法限制太大，则不必使用run_locally。事实上，无论怎样，run_locally都不是很好地被Capistrano所支持，而且维护人员(包括我自己)也支持劝阻使用它。相反，您可以使用Ruby的内置方法来运行本地命令，比如system或back。

http://ruby-doc.org/core-2.4.1/Kernel.html#method-i-system

http://ruby-doc.org/core-2.4.1/Kernel.html#method-i-60