#! /bin/bash
#==========================================================================
# Execute any hooks required for this segment
#
# Title:         pbuilder-runhooks
# Description    User hooks for pbuilder package
# Programmed by: Dale Amon <amon@vnl.com>
# Date:          $Date$ 
# Version:       $Revision$
#
# $HOOKDIR is set in /etc/pbuilderrc and contains a list of executable
# programs or scripts. The type is only limited by what you expect will
# be available in your chrooted environment after debootstrap has done
# an initial install. The functions muxt be named in the format:
# <prefex><digit><digit><descriptive name>. Currently only X is defined;
# scripts prefixed with X will be run just before the chroot environment
# is exited and the base.tgz file is created or updated.
#
# HISTORY:
# $Log$
# Revision 1.4  2001/09/27 08:20:58  dancer
# changing little bits to my liking, and hopefully removing any potentially dangerous bits.
#
# Revision 1.3  2001/09/27 07:13:04  dancer
# and even more reindentation.
#
# Revision 1.2  2001/09/27 07:12:51  dancer
# reindent etc.
#
# Revision 1.1  2001/09/27 07:10:47  dancer
# new file from dale amon.
#
# 20010925	Dale Amon <amon@vnl.com>
#		Created.
#		Thanks to Jens Ruehmkorf 
#		<ruehmkorf@informatik.uni-koeln.de>
#		for discussions and ideas.
#
# TODO:		* Are there any other executable backup types we should
#		  filtered besides *~ and *.bak?
#
#==========================================================================

hooks=/tmp/hooks

#==========================================================================
# Set up fresh chroot'd hooks tmp script directory
# 

function loadhooks () {
    if [ -e "$BUILDPLACE/$hooks" ]; then
	rm -rf "$BUILDPLACE/$hooks"
    fi
    if [ -d "$HOOKDIR" ]; then
	cp -a "$HOOKDIR" "$BUILDPLACE/tmp/"
    fi
}

#--------------------------------------------------------------------------
# Tidy up after ourselves. (Anything we leave behind ends up in base.tgz)
#

function unloadhooks () {
    rm -rf "$BUILDPLACE/$hooks"
}

#--------------------------------------------------------------------------
# Execute every script found in the chroot'd target directory. We only 
# test for whether a file is executable because we have no idea what
# the user had put in their dist. If they want PL/1 and ADA on the base
# dist or have decided to use emacslisp for everything, it's their 
# problem.
#
# Args:		Required prefix on hook fn name
# Returns:	none
#

function executehooks () {
    local prefix=$1

    # is this necessary?
    pushd $BUILDPLACE/$hooks
    for fn in $prefix[0-9][0-9]* ; do
	case "$fn" in
	    *~)
		echo "E: skipping an editor backup file $fn"
		;;
	    *.bak) 
		echo "E: skipping a backup file $fn"
		;;
	    *)	
		if [ -x $fn ]; then
		    $CHROOTEXEC "$hooks/$fn"
		    echo " -> user script $fn finished"
		else
		    filetype=$(readlink -f "$fn")
		    echo "E: execute priv not set on file $filetype"
		fi  
	        ;;	
	esac
    done
    popd
}

#--------------------------------------------------------------------------