!100 添加posttrans阶段，配置rebuilddb动作，解决对BDB版本rpm的兼容问题

From: @renxichen
Reviewed-by: @overweight,@openeuler-basic
Signed-off-by: @overweight,@openeuler-basic

rpm.spec

@@ -1,6 +1,6 @@
 Name:          rpm
 Version:       4.15.1
-Release:       31
+Release:       32
 Summary:       RPM Package Manager
 License:       GPLv2+
 URL:           http://www.rpm.org/
@@ -276,6 +276,19 @@ make check || (cat tests/rpmtests.log; exit 0)
 
 %postun libs -p /sbin/ldconfig
 
+%posttrans
+{
+    dbpath=$(rpm -E %{_dbpath})
+    while [ -e ${dbpath}/Packages ]; do
+        date >> /var/log/rebuilddb.log 2>&1
+        rpmdb -vvv --rebuilddb >> /var/log/rebuilddb.log 2>&1
+        if [ $? -ne 0 ];then
+            echo "Automatic conversion db failed. Please run 'rpmdb --rebuilddb' manually." >> /var/log/rebuilddb.log
+            exit 1
+        fi
+    done
+} &
+
 %files -f %{name}.lang
 %defattr(-,root,root)
 %license COPYING
@@ -372,6 +385,12 @@ make check || (cat tests/rpmtests.log; exit 0)
 %{_mandir}/man1/gendiff.1*
 
 %changelog
+* Sat Nov 20 2021 renhongxun <renhongxun@huawei.com> - 4.15.1-32
+- Type:bugfix
+- ID:NA
+- SUG:NA
+- DESC:add posttrans to rebuilddb
+
 * Thu Nov 18 2021 licunlong <licunlong1@huawei.com> - 4.15.1-31
 - Type:bugfix
 - ID:NA