Ruby on rails 使用git时出现Capistrano错误

我正在尝试设置capistrano，并希望在服务器上测试之前在本地测试我的配置，但是当我运行cap deploy-n时，会出现以下与git相关的错误

/Users/josh/.rvm/gems/ruby-1.9.3-p448@wgbh/gems/capistrano-2.15.5/lib/capistrano/recipes/deploy/scm/git.rb:234:in `block in query_revision': undefined method `sub' for nil:NilClass (NoMethodError)

为此，我们将采取以下措施：

  * 2013-08-26 12:12:30 executing `deploy'
  * 2013-08-26 12:12:30 executing `deploy:update'
 ** transaction: start
  * 2013-08-26 12:12:30 executing `deploy:update_code'
  * executing locally: "git ls-remote git@github.com:GIT_REPO GIT_BRANCH"
*** [deploy:update_code] rolling back
  * executing "rm -rf /u/apps/APP_NAME/releases/20130826161230; true"

require "bundler/capistrano" 

set :application, "APP_NAME"
set :deply_to, "/the/server/path"
set :user, "SERVER_USER"

set :repository,  "git@github.com:GIT_REPO_PATH"
set :scm, :git
set :scm_username , "GIT_USER_NAME"
#this allows you to choose a branch in the command line or default to master with 'cap -S branch=branchname deploy'
set :branch, fetch(:branch, "master")

#tells is to do resuse a single remote git clone
set :deploy_via, :remote_cache

server "THE_SERVER_NAME", :app, :web, :db, :primary => true

after 'deploy:update_code', 'deploy:migrate'

# If you are using Passenger mod_rails uncomment this:
namespace :deploy do
 task :start do ; end
 task :stop do ; end
 task :restart, :roles => :app, :except => { :no_release => true } do
  run "#{try_sudo} touch #{File.join(current_path,'tmp','restart.txt')}"
 end
end

我试着追溯这一点，但我似乎不知道是什么原因造成的。My deploy.rb如下所示：

  * 2013-08-26 12:12:30 executing `deploy'
  * 2013-08-26 12:12:30 executing `deploy:update'
 ** transaction: start
  * 2013-08-26 12:12:30 executing `deploy:update_code'
  * executing locally: "git ls-remote git@github.com:GIT_REPO GIT_BRANCH"
*** [deploy:update_code] rolling back
  * executing "rm -rf /u/apps/APP_NAME/releases/20130826161230; true"

require "bundler/capistrano" 

set :application, "APP_NAME"
set :deply_to, "/the/server/path"
set :user, "SERVER_USER"

set :repository,  "git@github.com:GIT_REPO_PATH"
set :scm, :git
set :scm_username , "GIT_USER_NAME"
#this allows you to choose a branch in the command line or default to master with 'cap -S branch=branchname deploy'
set :branch, fetch(:branch, "master")

#tells is to do resuse a single remote git clone
set :deploy_via, :remote_cache

server "THE_SERVER_NAME", :app, :web, :db, :primary => true

after 'deploy:update_code', 'deploy:migrate'

# If you are using Passenger mod_rails uncomment this:
namespace :deploy do
 task :start do ; end
 task :stop do ; end
 task :restart, :roles => :app, :except => { :no_release => true } do
  run "#{try_sudo} touch #{File.join(current_path,'tmp','restart.txt')}"
 end
end

---

还有其他人经历过这个错误吗？我发现，但遵循一个建议根本不会改变错误。

查看引用错误的来源：

      command = scm('ls-remote', repository, revision)
      result = yield(command)
      revdata = result.split(/[\t\n]/)
      newrev = nil
      revdata.each_slice(2) do |refs|
        rev, ref = *refs
        if ref.sub(/refs\/.*?\//, '').strip == revision.to_s # Explosion!
        ...
      end

---

似乎没有为所选分支或存储库加载修订数据（

ref

在调用

sub

时为nil）。尝试自己运行指定的命令（

git ls remote）git@github.com：GIT_REPO GIT_BRANCH

），希望生成更具体的错误消息，可能涉及分支或存储库本身。

查看引用错误的来源：

      command = scm('ls-remote', repository, revision)
      result = yield(command)
      revdata = result.split(/[\t\n]/)
      newrev = nil
      revdata.each_slice(2) do |refs|
        rev, ref = *refs
        if ref.sub(/refs\/.*?\//, '').strip == revision.to_s # Explosion!
        ...
      end

---

似乎没有为所选分支或存储库加载修订数据（

ref

在调用

sub

时为nil）。尝试自己运行指定的命令（

git ls remote）git@github.com：GIT_REPO GIT_BRANCH

），可能会生成更具体的错误消息，可能涉及分支或存储库本身。

问题似乎是，在干运行模式下，本地运行函数返回数组，不是预期的字符串

看

不确定git配方是否有一种简单的方法来确定它处于干运行模式。如果你只是侵入这样的东西：

# in recipes/deploy/scm/git.rb ~line 229
result = yield(command)
return "666" if result.class == Array  # better would be: dry_run?

---

然后-n调用继续。

问题似乎是，在干运行模式下，本地运行函数返回一个数组，而不是预期的字符串

看

不确定git配方是否有一种简单的方法来确定它处于干运行模式。如果你只是侵入这样的东西：

# in recipes/deploy/scm/git.rb ~line 229
result = yield(command)
return "666" if result.class == Array  # better would be: dry_run?

---

然后-n调用继续。

运行该命令返回0A6F2B064A09FF2963E9704040A81CEF976F94C5A refs/heads/development，因此它似乎获得了正确的修订信息运行该命令返回0A6F2B064A09FF2963E97040A81CEF976F94C5A refs/heads/development，因此它似乎获得了正确的修订信息capistrano中开始解决此问题的请求。capistrano中有一个pull请求开始解决这个问题。