From Fedora Project Wiki
rpmupdates
The rpmupdates script is a small bash program that updates the RPMs in you tree. Put your updated RPMs in new/new/. This script will compare them to the RPMs in i386/Fedora/RPMS/. If the RPMs in new/new/ are newer, this script will move the old RPMs to olddir/, and copy the new RPMs to i386/Fedora/RPMS/ and new/done. If they are not newer, it will move them to new/ and give a warning message. I have seen several perl programs that do the same thing, but I would really like to see a python program that could be included with anaconda.
Move the rpmupdates script to /fedora (or /dvd), and run it from that directory.
diff -urN anaconda-9.2/scripts/rpmupdates anaconda-9.2.new/scripts/rpmupdates
--- anaconda-9.2/scripts/rpmupdates 1969-12-31 16:00:00.000000000 -0800
+++ anaconda-9.2.new/scripts/rpmupdates 2003-01-22 16:21:22.000000000 -0800
@@ -0,0 +1,85 @@
+#!/bin/bash
+#
+# UPDATES_DIR The directory that contains the updates
+# RPM1DIR The original RH tree
+# RPM2DIR Disc 2 of the tree
+# ARCH Arch
+# EXTRA_DIR The directory that contains extra RPMS
+# OLDDIR All old rpms will be dumped here
+
+RPM1DIR=i386/Fedora/RPMS
+UPDATES_DIR=new/new
+OLDDIR=olddir
+DONE_DIR=new/done
+EXTRA_DIR=extra
+# DEBUG=0
+
+ echo NOTICE: beginning to apply updated packages to ${RPM1DIR}
+ echo NOTICE: from ${UPDATES_DIR} ### and ${EXTRA_DIR}
+ echo NOTICE: this may take a few minutes
+ echo
+
+ if [<nop>[ ! -d <nop>$OLDDIR ] <nop> ; then
+ echo making directory $OLDDIR
+ mkdir $OLDDIR
+ fi
+
+ if [<nop>[ $DEBUG ] <nop>
+ then
+ echo 'in update_cd'
+ echo PWD = <code>pwd</code>
+ echo RPM1DIR=$RPM1DIR
+ echo ARCH=$ARCH
+ echo UPDATES_DIR=$UPDATES_DIR
+ echo
+ fi
+ allow_null_glob_expansion=1
+
+# for rpm in ${UPDATES_DIR}/*.rpm ${EXTRA_DIR}/*.rpm ; do
+ for rpm in ${UPDATES_DIR}/*.rpm; do
+ RPMDIR=${RPM1DIR}
+# NAME=<code>rpm --qf '%{NAME}' -qp $rpm --nosignature --nodigest</code> for BETAs (4x)
+ NAME=<code>rpm --qf '%{NAME}' -qp $rpm</code>
+ ARCH=<code>rpm --qf '%{ARCH}' -qp $rpm</code>
+ unset OLDNAME
+ for oldrpm in ${RPM1DIR}/${NAME}*.${ARCH}.rpm ; do
+ if [<nop>[ x<code>rpm --qf '%{NAME}' -qp $oldrpm</code> = x$NAME ] <nop> ; then
+ if [<nop>[ x<code>rpm --qf '%{ARCH}' -qp $oldrpm</code> = x$ARCH ] <nop> ; then
+ OLDNAME=$oldrpm
+ RPMDIR=${RPM1DIR}
+ break
+ fi
+ fi
+ done
+
+ if [<nop>[ ! -d $DONE_DIR ] <nop> ;then
+ echo Making $DONE_DIR
+ mkdir $DONE_DIR
+ fi
+
+ if [<nop>[ -z $OLDNAME ] <nop> ; then
+ echo $NAME $ARCH is new
+ cp -pv $rpm $RPMDIR
+ mv $rpm $DONE_DIR
+ else
+ if [<nop>[ x<code>basename $rpm</code> != x<code>basename $OLDNAME</code> ] <nop>
+ then
+ if [<nop>[ $DEBUG ] <nop>
+ then
+ echo mv $OLDNAME $OLDDIR
+ echo cp -pv $rpm $RPMDIR
+ echo mv $rpm $DONE_DIR
+ else
+ mv $OLDNAME $OLDDIR
+ #echo removing $OLDNAME
+ #rm $OLDNAME
+ cp -pv $rpm $RPMDIR
+ mv $rpm $DONE_DIR
+ fi
+ else
+ echo NOTICE: <code>basename $rpm</code> update already applied
+ echo NOTICE: Now moving <code>basename $rpm</code> to new/
+ mv $rpm new
+ fi
+ fi
+ done