我需要在安装rpm时找到该软件包的先前版本(如果已安装)。我的spec文件如下
在POST中
%post
if [ "$1" = "1" ]; then
# Perform new install
fi
elif [ "$1" = "2" ]; then
# Perform update
的 # what I need is value for Version
if [ $Version = 1.0]; then
# do upgrade 1
fi
elif [ "$Version" = "2" ]; then
#do upgrade 2
fi
fi
在上面的代码中,我如何获得版本的值。我尝试使用执行 rpm-qi | grep <rpm_package>
还有其他方法吗?
答案 0 :(得分:2)
不要检查版本。检查数据是旧的还是新的。
请参阅: https://fedoraproject.org/wiki/Packaging:ScriptletSnippets#Saving_state_between_scriptlets
%pre
grep OLDDATA /etc/myconfig >/dev/null && touch %{_localstatedir}/lib/rpm-state/%{name}.DoSomethingLater
%posttrans
if [ -e %{_localstatedir}/lib/rpm-state/%{name}.DoSomethingLater ]; then
# do some conditional stuff
rm -f %{_localstatedir}/lib/rpm-state/%{name}.DoSomethingLater
fi