如何在卡皮斯特拉诺“复制，除非以后的版本存在”？

I want to protect my database.yml file by keeping it out of version control. Thus, I have two tasks in my Capistrano deploy recipe:

我希望保护我的database.yml文件,使其不受版本控制。因此,我在Capistrano部署配方中有两个任务:

task :copy_db_config do
  # copy local config file if it exists and is more
  # recent than the remote one
end

task :symlink_db_config do
  run "ln -nfs #{shared_path}/config/database.yml #{release_path}/config/database.yml"
end

Can you help fill in the first task?

你能帮忙填写第一个任务吗?

2 个解决方案

#1

I don't have functioning code for you here and now but..

我现在和你现在没有正常运行的代码但是..

you can the the local timestamp by using ruby. File class has a function ctime which let's You know when it was changed.

你可以使用ruby来获取本地时间戳。文件类有一个函数ctime,让你知道它什么时候被改变了。

Run the same command on the servers database.yml

在服务器database.yml上运行相同的命令

If the local one is newest, capistrano has a method for secure upload

如果本地最新,capistrano有一个安全上传的方法

upload("products.txt", "/home/medined", :via => :scp)

upload(“products.txt”,“/ home / medined”,:via =>:scp)

#2

I had the same problem, but I approached it differently. Maybe it will be helpful.

我遇到了同样的问题,但我的处理方式不同。也许它会有所帮助。

The setup task copies database.yml.example to database.yml. The deploy task does not touch database.yml. I have separate tasks for changing the database names, usernames, and passwords. Here's an example:

安装任务将database.yml.example复制到database.yml。部署任务不会触及database.yml。我有单独的任务来更改数据库名称,用户名和密码。这是一个例子:

desc "Change the database name"
task :change_db_database, :roles => :app do
  database = prompt('Enter new database name: ')
  run <<-CMD
    cd #{shared_path}/config &&
    perl -i -pe '$env = $1 if /^(\\w+)/; s/database:.*/database: #{database}/ if $env eq "#{ENV['CONNECTION'] || ENV['TARGET']}"' database.yml
  CMD
end

I run these after setup but before the first deploy on new boxes. Then any time after that when I need to change database parameters, I use these tasks instead of copying in a new file.

我在安装后但在第一次部署新盒子之前运行这些。然后在我需要更改数据库参数之后的任何时候,我使用这些任务而不是在新文件中复制。

#1