Stefan Fiedler:

package/base/postinstall/postinstall

@@ -0,0 +1,118 @@
+#!/bin/bash
+#
+# --- ROCK-COPYRIGHT-NOTE-BEGIN ---
+# 
+# This copyright note is auto-generated by ./scripts/Create-CopyPatch.
+# Please add additional copyright information _after_ the line containing
+# the ROCK-COPYRIGHT-NOTE-END tag. Otherwise it might get removed by
+# the ./scripts/Create-CopyPatch script. Do not edit this copyright text!
+# 
+# ROCK Linux: rock-src/scripts/Build-Pkg
+# ROCK Linux is Copyright (C) 1998 - 2005 Clifford Wolf
+# 
+# This program is free software; you can redistribute it and/or modify
+# it under the terms of the GNU General Public License as published by
+# the Free Software Foundation; either version 2 of the License, or
+# (at your option) any later version. A copy of the GNU General Public
+# License can be found at Documentation/COPYING.
+# 
+# Many people helped and are helping developing ROCK Linux. Please
+# have a look at http://www.rocklinux.org/ and the Documentation/TEAM
+# file for details.
+# 
+# --- ROCK-COPYRIGHT-NOTE-END ---
+
+# Helper functions
+is_installed ()
+{
+	if [ install_checks_true == 1 ]; then return 0; fi
+	[ -e "$1" ];
+}
+
+is_removed ()
+{
+	if [ remove_checks_true == 1 ]; then return 0; fi
+	[ ! -e "$1" ];
+}
+
+all_installed () {
+	for N in /var/adm/postinstall/*-install.??????;
+	do
+		#echo $N
+		if [ ! -e "$N" ]; then return 0; fi
+		grep "$1" "$N" | cut -f2 -d' ' |
+		while read M; do 
+			if is_installed "/$M"; then echo "/$M"; fi; 
+		done
+	done | sort -u
+}
+
+all_removed () {
+	for N in /var/adm/postinstall/*-remove.??????;
+	do
+		if [ ! -e "$N" ]; then return 0; fi
+		grep "$1" "$N" | cut -f2 -d' ' |
+		while read M; do 
+			if is_removed "/$M"; then echo "/$M"; fi; 
+		done
+	done | sort -u
+}
+
+any_installed () {
+	if [ install_checks_true == 1 ]; then return 0; fi
+	# This is a hack. Simply returning 0 if a file is found does not work?!
+	if [ "`all_installed $1`" != "" ]; then return 0; else return 1; fi
+}
+
+any_removed () {
+	if [ remove_checks_true == 1 ]; then return 0; fi
+	# This is a hack. Simply returning 0 if a file is found does not work?!
+	if [ "`all_installed $1`" != "" ]; then return 0; else return 1; fi
+}
+
+install_checks_true=0
+remove_checks_true=0
+
+if [ "$1" == "-a" ]; then install_checks_true=1; shift; fi
+if [ "$1" == "-r" ]; then remove_checks_true=1; shift; fi
+if [ "$1" == "--help" ]; then 
+	echo "Usage: $0 [ -a ] [ -r ] [ --help ]"
+	echo
+	echo "	-a	execute all postinstall actions"
+	echo "	-r	execute all postremove actions"
+	echo "	--help  show this help text"
+	echo
+	exit 0;
+fi
+
+
+# Backup postinstall scripts for postremove operation
+all_installed "etc/postinstall/.*\.sh" | while read M;
+do
+	echo "Creating backup of $M in /etc/postinstall/postremove/"
+	cp -af "$M" "/etc/postinstall/postremove/${M##*/}"
+done
+
+# Execute removed postinstall scripts
+all_removed "etc/postinstall/.*\.sh" | while read M; 
+do
+	P="/etc/postinstall/postremove/${M##*/}"
+	if [ -e $P ]; then
+		echo "Executing postremove script $P"
+		. "$P"
+		rm -f "$P"
+	else
+		echo "WARNING: backup of $M not found in /etc/postinstall/postremove"
+	fi
+done
+	
+# Source postinstall scripts
+for N in /etc/postinstall/*.sh; 
+do
+	echo "Executing postinstall script $N"
+	. "$N"
+done
+
+# Remove the postinstall/postremove logs
+rm -f /var/adm/postinstall/*-{install,remove}.??????
+

package/base/postinstall/postinstall-example.sh

@@ -0,0 +1,13 @@
+#! /bin/bash
+
+if any_installed ".*\.so"; then
+	echo "dynamic libraries installed, run ldconfig!"
+fi
+
+if any_removed ".*\.so"; then
+	echo "dynamic libraries removed, run ldconfig!"
+fi
+
+all_installed ".*" | while read M; do echo "Installed: $M"; done
+all_removed ".*" | while read M; do echo "Removed: $M"; done
+

package/base/postinstall/postinstall.conf

@@ -0,0 +1,11 @@
+postinstall_main () 
+{
+ mkdir -p /var/adm/postinstall
+ mkdir -p /etc/postinstall
+ mkdir -p /etc/postinstall/postremove
+ cp -a /$confdir/postinstall /usr/sbin/
+ chmod +x /usr/sbin/postinstall 
+ cp -a /$confdir/postinstall-example.sh /etc/postinstall
+}
+
+mainfunction=postinstall_main

package/base/postinstall/postinstall.desc

@@ -0,0 +1,41 @@
+
+[COPY] --- ROCK-COPYRIGHT-NOTE-BEGIN ---
+[COPY] 
+[COPY] This copyright note is auto-generated by ./scripts/Create-CopyPatch.
+[COPY] Please add additional copyright information _after_ the line containing
+[COPY] the ROCK-COPYRIGHT-NOTE-END tag. Otherwise it might get removed by
+[COPY] the ./scripts/Create-CopyPatch script. Do not edit this copyright text!
+[COPY] 
+[COPY] ROCK Linux: rock-src/package/base/psmisc/psmisc.desc
+[COPY] ROCK Linux is Copyright (C) 1998 - 2005 Clifford Wolf
+[COPY] 
+[COPY] This program is free software; you can redistribute it and/or modify
+[COPY] it under the terms of the GNU General Public License as published by
+[COPY] the Free Software Foundation; either version 2 of the License, or
+[COPY] (at your option) any later version. A copy of the GNU General Public
+[COPY] License can be found at Documentation/COPYING.
+[COPY] 
+[COPY] Many people helped and are helping developing ROCK Linux. Please
+[COPY] have a look at http://www.rocklinux.org/ and the Documentation/TEAM
+[COPY] file for details.
+[COPY] 
+[COPY] --- ROCK-COPYRIGHT-NOTE-END ---
+
+[I] runs post-install/-remove actions
+
+[T] Some packages require actions to be performed after files have been 
+[T] installed or removed.
+[T] postinstall is used to execute the postinstall scripts that every 
+[T] package can supply.
+
+[A] Stefan Fiedler <stefan dot fiedler at students dot jku dot ac>
+[M] Stefan Fiedler <stefan dot fiedler at students dot jku dot ac>
+
+[C] base/tool
+[F] CORE
+
+[L] OpenSource
+[S] Stable
+[V] 0.1
+[P] X -?-3-----9 186.900
+