可以在以下位置安装cpackstrict OS版本软件包 [英] cpack restrict OS version package can be installed on

问题描述

我为多个操作系统版本(包括RHEL7& amp;RHEL8(或大致相同的CentOS7& 8).

I create packages for several OS versions including RHEL7 & RHEL8 (or mostly equally CentOS7 & 8).

可以安装为.el7构建的软件包.在.el8上.但它通常不起作用(例如由于未定义的符号等).理想情况下，我想使安装失败，并显示一条错误消息，例如此软件包仅用于RHEL7/CentOS7".

It is possible to install a package built for .el7. on .el8. but it will typically not work (for example due to undefined symbols etc). Ideally I would like to make the installation fail with an error message like "this package is only intend for RHEL7/CentOS7".

我该怎么做?更具体地说，如何使用CPack/CMake做到这一点?

How can I do this? More specifically how can I do this with CPack/CMake?

如果您还可以提供适用于Debian版本的说明，请加分.

Bonus points if you can also given an explanation suitable for Debian versions.

到目前为止，我有一些想法:

Here are some ideas I have so far:

1. 以某种方式使用 dist标签，请参见:

• https://serverfault.com/questions/283330/rpm-spec-conditionalrequire-based-distro-version
在安装时
1. 在预安装脚本中检查 uname -r 答案的一部分在这里:
1. Check uname -r at install time in a pre-install script Part of that answer is here:
• 如何在rpmbuild规范文件中检查操作系统版本
• https://unix.stackexchange.com/questions/9296/how-can-i-specify-os-conditional-build-requirements-in-an-rpm-spec-file

我不太确定如何使用cpack做到这一点.我不想生成自定义规格文件，因为构建机制已经足够复杂.

I'm not quite sure how to do that using cpack. I do not want to generate a custom spec file as the build machinery is already complex enough.

1. 另一种选择是在仅存在于RHEL7而不存在于RHEL8的软件包上添加％requires，反之亦然.该软件包还需要在CentOS上存在，并且不要以某种方式更改，如果升级则会使安装失败.有人知道合适的包装要依靠吗?

例如:

>rpm -q --whatprovides /etc/redhat-release 
centos-release-8.2-2.2004.0.1.el8.x86_64

这看起来像是一个不错的选择，但是如果我添加对centos-release-8.2的依赖，然后他们后来升级到centos-release-8.3或使用RedHat，则将无法使用.

This looks like a good candidate but if I add a dependency on centos-release-8.2 and they later upgrade to centos-release-8.3 or use RedHat instead this will not work.

推荐答案

我

I did this before by having a stanza in %pre that stopped it:

if [ -n "%{dist}" ]; then
  PKG_VER=`echo %{dist} | perl -ne '/el(\d)/ && print $1'`
  THIS_VER=`perl -ne '/release (\d)/ && print $1' /etc/redhat-release`
  if [ -n "${PKG_VER}" -a -n "${THIS_VER}" ]; then
    if [ ${PKG_VER} -ne ${THIS_VER} ]; then
      for i in `seq 20`; do echo ""; done
      echo "WARNING: This RPM is for CentOS${PKG_VER}, but you seem to be running CentOS${THIS_VER}" >&2
      echo "You might want to uninstall these RPMs immediately and get the CentOS${THIS_VER} version." >&2
      for i in `seq 5`; do echo "" >&2; done
    fi
  fi
fi

记住-您 在RPM安装中没有任何用户交互.您可以让它失败而不是警告您.这取决于你.

Remember - you cannot have any user interaction in RPM installation. You could have it fail instead of warn tho; that's up to you.

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