Capistrano讨厌Gemspecs

Question

我正在使用Capistrano在Slicehost上部署一个rails应用程序。部署过程的一部分涉及重新构建gem并安装它。

通过git scm将代码部署到服务器上工作得很好，但由于某些原因，当我尝试执行以下操作时...

run 'gem build /my/app/folder/my.gemspec'

..。在deploy.rb的另一项任务中，一切都变得井然有序。我收到一个奇怪的错误，告诉我gemspec中的文件不是文件...

ERROR:  While executing gem ... (Gem::InvalidSpecificationException)
[ ... , "public/images/admin/navigation_shadow.png", "public/images/admin/new_layout.png", "public/images/admin/buttons_background.png", "public/images/admin/expand.png", "public/images/admin/status_spinner
** [out :: MY.IP.ADD.RESS ] .gif", "public/images/admin/draft_page.png", "public/images/admin/vertical_tan_gradient.png", "public/images/admin/status_top_right.png", "public/images/admin/snippet.png", "public/images/admin/spacer.gif", "public/images/admin/status_bottom_right.png", "public/images/admin/spinner.gif", "CONTRIBUTORS", "script", "script/server", "script/breakpointer", "script/generate", "script/dbconsole", "script/about", "script/spec", "script/runner", "script/process", "script/process/reaper", "script/process/inspector", "script/process/spinner", "script/process/spawner", "script/version", "script/plugin", "script/console", "script/autospec", "script/destroy", "script/cucumber", "script/spec_server", "script/performance", "script/performance/profiler", "s ** [out :: MY.IP.ADD.RESS ] cript/performance/request", "script/performance/benchmarker", "script/extension", "LICENSE", "CHANGELOG", ".gitignore", "bin", "my.gemspec", "config", "config/database.mysql.yml", "config/environments", "config/environments/test.rb", "config/environments/production.rb", "config/environments/development.rb", "config/database.yml" ] are not files

这很奇怪，因为当我ssh到机器中并手动执行时，相同的命令可以完美地工作，当我这样做时……

sh -c 'gem build /my/app/folder/my.gemspec'

这就是capistrano包装远程命令行调用的方式，当我手动执行时，也可以很好地工作。

甚至尝试将Kernel.system()调用包装在另一个ruby文件中，并从deploy.rb调用它，但仍然得到相同的问题。太疯狂了。

我想知道这是不是跟

** [out :: MY.IP.A.DRES]

以明显随机的间隔添加到输出中的字符串。

Answer 1

有可能“它工作得很好”并不完全正确，你确定它不会输出STDERR吗？

out :：IP addr有点奇怪，而且不正常；您还应该考虑您的路径是否设置正确，这就是PTY和TTY之间的区别。

要做到这一点，最简单的方法(但并不完美)是：

run('echo $PATH')

对比

ssh my.server.addr 'sh -c \'echo $PATH\''

(后者实际上就是Cap所做的。)

您可能还想尝试：

run("cd /my/app/folder/ && gem build my.gemspec")

^其中一个将为您工作。