如何在 shell 脚本中使用 rvm

Question

是否可以在 shell 脚本中加载 rvm。 谁能举个例子。 当我尝试使用 shell 脚本时。 我正在使用 ubuntu 系统

#!/bin/bash
rvm use 1.9.3

它给了我错误

RVM is not a function, selecting rubies with 'rvm use ...' will not work.

You need to change your terminal emulator preferences to allow login shell.
Sometimes it is required to use `/bin/bash --login` as the command.
Please visit https://rvm.io/integration/gnome-terminal/ for a example.

Answer 1

您可以通过执行以下操作在脚本中包含 rvm：

source ~/.rvm/scripts/rvm

那么 rvm 应该可用于您的脚本，

Answer 2

为了简单地针对 RVM 管理的 Ruby（或系统 Ruby）执行命令，请执行以下操作：

rvm 1.9.3 exec camper_van

这假设rvm use 1.9.3并且gem install camper_van之前发生过，它提供了camper_van可执行文件

注意：RVM 预计已经加载 - 通常用于在您的用户下启动的脚本（ RVM is not a function, selecting rubies with 'rvm use ...'确认它已经存在）。

Answer 3

# Load RVM into a shell session *as a function*
# Loading RVM *as a function* is mandatory
# so that we can use 'rvm use <specific version>'
if [[ -s "$HOME/.rvm/scripts/rvm" ]] ; then
  # First try to load from a user install
  source "$HOME/.rvm/scripts/rvm"
  echo "using user install $HOME/.rvm/scripts/rvm"
elif [[ -s "/usr/local/rvm/scripts/rvm" ]] ; then
  # Then try to load from a root install
  source "/usr/local/rvm/scripts/rvm"
  echo "using root install /usr/local/rvm/scripts/rvm"
else
  echo "ERROR: An RVM installation was not found.\n"
fi