修复安装阶段报的脚本运行异常的问题 · Pull Request !10 · src-anolis-os/clevis

软件包clevis在安装阶段会提示运行脚本报错![输入图片说明](https://foruda.gitee.com/images/1724209120666662754/56fdfe6b_8912612.jpeg "abff3a50-34da-4968-88cc-10d7b626ff14.jpeg")
后查找原因发现：
```
%pre
%sysusers_create_compat %{SOURCE1}
\# Add clevis user to tss group.
if getent group tss >/dev/null && ! groups %{name} | grep -q "\btss\b"; then
    usermod -a -G tss %{name} &>/dev/null
fi
exit 0
```
中“%sysusers_create_compat”定义不存在,在fedora38系统中查询如下
```
[root@localhost ~]# rpm -qf /usr/lib/rpm/macros.d/macros.sysusers
systemd-rpm-macros-253.17-1.fc38.noarch
[root@localhost ~]# cat /usr/lib/rpm/macros.d/macros.sysusers
# RPM macros for packages creating system accounts
#
# Turn a sysusers.d file into macros specified by
# https://docs.fedoraproject.org/en-US/packaging-guidelines/UsersAndGroups/#_dynamic_allocation

%sysusers_requires_compat Requires(pre): shadow-utils

%sysusers_create_compat() \
%(%{_rpmconfigdir}/sysusers.generate-pre.sh %{?*}) \
%{nil}
[root@localhost ~]#
```
只有在高版本的systemd中才会有此定义，咱们宏的systemd版本相对低一些，没有相关函数的定义，因此spec文件中需要将此展开
通过命令rpmspec -P xxx.spec查看spec文件展开内容如下：

```
# generated from clevis.sysusers
getent group 'clevis' >/dev/null || groupadd -r 'clevis' || :
getent passwd 'clevis' >/dev/null || \
    useradd -r -g 'clevis' -d '/var/cache/clevis' -s '/usr/sbin/nologin' -c 'Clevis Decryption Framework unprivileged user' 'clevis' || :
```
结合以前的的clevis版本，最总进行如下修改：

```
getent group %{name} >/dev/null || groupadd -r %{name} &>/dev/null
getent passwd %{name} >/dev/null || \
    useradd -r -g %{name} -d %{_localstatedir}/cache/%{name} -s /sbin/nologin \
    -c "Clevis Decryption Framework unprivileged user" %{name} &>/dev/null
```

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