如何在 shell 腳本中使用 rvm

Question

是否可以在 shell 腳本中加載 rvm。 誰能舉個例子。 當我嘗試使用 shell 腳本時。 我正在使用 ubuntu 系統

#!/bin/bash
rvm use 1.9.3

它給了我錯誤

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

您可以通過執行以下操作在腳本中包含 rvm：

source ~/.rvm/scripts/rvm

那么 rvm 應該可用於您的腳本，

Answer 2

為了簡單地針對 RVM 管理的 Ruby（或系統 Ruby）執行命令，請執行以下操作：

rvm 1.9.3 exec camper_van

這假設rvm use 1.9.3並且gem install camper_van之前發生過，它提供了camper_van可執行文件

注意：RVM 預計已經加載 - 通常用於在您的用戶下啟動的腳本（ RVM is not a function, selecting rubies with 'rvm use ...'確認它已經存在）。

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