如何告诉Bundler使用全系统安装的gems（生产部署）？ [英] How to tell Bundler to use gems installed systemwide (production deployment)?

问题描述

在Capistrano部署Rails应用程序时，我希望Bundler将gem安装到 shared / bundles 目录中，只要它无法在系统范围内找到已安装的gems。例如，如果我有一个 pg gem v

0.14 已经安装在系统上，我希望Bundler使用它，而不是在我的应用程序的 shared / bundles dir中构建并安装一个新的。

我使用的是Ubuntu Server，并为多个用户安装了RVM。

Bundler允许使用共享（rubygems）和出售（bundler）gem，默认情况下 bundler / capistrano 配置为：

  set：bundle_flags，--deployment --quiet
  

只强制售卖宝石，

您可以切换回共享宝石，具体为：

  set：bundle_flags，--system --quiet
  

仍然安装在供应商中，但也使用共享宝石：

  set：bundle_flags，--path＃{shared_pa​​th} / bundles --quiet
  

如果已经使用 - deployment （缺省值）运行了部署，那么它可以帮助运行一次部署：

  set：bundle_flags，--no-deployment
  

When deploying a Rails app with Capistrano, I want Bundler to install gems to shared/bundles dir ONLY IF it can't find gems installed systemwide already. How do I do it?

For example, if I have a pg gem v 0.14 already installed on the system, I want Bundler to use it and not build and install a new one into shared/bundles dir of my application.

I'm using Ubuntu Server and RVM is installed for multiple users.

解决方案

Bundler allows using shared(rubygems) and vendored(bundler) gems, by default bundler/capistrano is configured with:

set :bundle_flags, "--deployment --quiet"

which forces vendored gems only,

you can switch back to shared gems with explicit:

set :bundle_flags, "--system --quiet"

to still install in vendor but use shared gems too:

set :bundle_flags, "--path #{shared_path}/bundles --quiet"

if the deployment was already ran with --deployment(the default) then it could help to run the deploy once with:

set :bundle_flags, "--no-deployment"

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