使用特定版本的 ruby​​ 在 cron 上运行 gem [英] Running a gem on cron with a specific version of ruby

问题描述

我们需要按 cron 计划运行某个 gem 应用程序，因此我们设置了一个专门的用户来运行此 gem.

We need a certain gem application run on a cron schedule, so we have a dedicated user set up to run this gem.

我们目前使用的是 ruby​​ 1.9.2

We are currently using ruby 1.9.2

[jobrunner@test-load] rvm list
rvm rubies

   ruby-1.8.7-p299 [ x86_64 ]
   ruby-1.9.2-p180 [ x86_64 ]
=* ruby-1.9.2-p290 [ x86_64 ]
   ruby-1.9.3-p125 [ x86_64 ]
   ruby-1.9.3-p374 [ x86_64 ]
   ruby-1.9.3-p392 [ x86_64 ]
   ruby-1.9.3-p448 [ x86_64 ]
   ruby-2.0.0-p247 [ x86_64 ]

# => - current
# =* - current && default
#  * - default

不幸的是，我需要这个用户在 ruby​​ 1.9.3 上运行.更改默认 ruby​​ 版本不是一个选项，因为 rvm 安装在系统范围内 (/usr/local/rvm/bin/rvm) 并且系统上的其他用户依赖于 1.9.2.

Unfortunately I need this user to run on ruby 1.9.3. Changing the default ruby version is not an option because rvm is installed system wide (/usr/local/rvm/bin/rvm) and other users on the system rely on 1.9.2.

如果我在一个交互式会话中，它会很简单

If I were in an interactive session, it would be as simple as

rvm use 1.9.3

但是，我似乎无法在非交互式会话中(即在 crontab 中)使用 rvm use.(我尝试将其粘贴到我的 bashrc 文件中并告诉 cron 查看我的 bashrc 文件.我最终对自己进行了 forkbombing ..)

However, it appears I can't use rvm use in a non-interactive session (i.e. in the crontab). (I tried it by sticking that in my bashrc file and telling cron to look at my bashrc file. I ended up forkbombing myself..)

如何通过 rvm 使用特定版本的 ruby​​ 获取我的 crontab?

How do I get my crontab using a specific version of ruby via rvm?

推荐答案

来自 tty 切换 ruby​​ 版本:

From tty switch ruby version:

rvm use 1.9.3

您应该使用 rvm 设置 cron:

You should set up cron with rvm:

rvm cron setup

那么您的 crontab 将如下所示:

then your crontab would look like this:

<代码>PATH="/usr/local/rvm/gems/ruby-1.9.3-p194/bin:/usr/local/rvm/gems/ruby-1.9.3-p194@global/bin:/usr/local/rvm/rubies/ruby-1.9.3-p194/bin:/usr/local/rvm/bin:/usr/local/rvm/gems/ruby-1.9.3-p194/bin:/usr/local/rvm/gems/ruby-1.9.3-p194@global/bin:/usr/local/rvm/rubies/ruby-1.9.3-p194/bin:/usr/local/rvm/bin:/usr/lib64/qt-3.3/bin:/usr/local/bin:/bin:/usr/bin:/usr/local/sbin:/usr/sbin:/sbin:/usr/local/rvm/gems/ruby-1.9.3-p194@global/"
rvm_env_string='ruby-1.9.3-p194'
rvm_path='/usr/local/rvm'
rvm_ruby_string='ruby-1.9.3-p194'
RUBY_VERSION='ruby-1.9.3-p194'
GEM_HOME='/usr/local/rvm/gems/ruby-1.9.3-p194'
GEM_PATH='/usr/local/rvm/gems/ruby-1.9.3-p194:/usr/local/rvm/gems/ruby-1.9.3-p194@global'
MY_RUBY_HOME='/usr/local/rvm/rubies/ruby-1.9.3-p194'
IRBRC='/usr/local/rvm/rubies/ruby-1.9.3-p194/.irbrc'

Cron 将使用 1.9.3 ruby​​ 与上述内容

Cron would use 1.9.3 ruby with the above

刚刚注意到我的文本在 SO 上的格式不正确，所以我重新格式化了它

Just noticed my text was not well formatted on SO, so I have reformatted it

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