www.nico.schottelius.org/software/cinit/browse_source/cinit-0.1/bin/cinit.add.dependency

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#!/bin/sh
# Nico Schottelius
# cinit: create dependency: service a needs or wants service b
set -e
# init variables
. $(dirname $0)/cinit.read-conf
BASEDIR=$DESTDIR/$CINIT_DIR
if [ $# -ne 3 ]; then
echo "`basename $0`: service_A [wants|needs] service_B"
echo ""
echo " Service A needs or wants Service B."
echo " Use relative paths, not absolute."
echo " You must specify whether to use wants or needs."
echo ""
exit 23
fi
SVC_A=$1
DEP=$2
SVC_B=$3
case $DEP in
wants) DEP=$C_WANTS ;;
needs) DEP=$C_NEEDS ;;
*) echo "Did not I say \"want\" or \"need\"? You _must_ use those terms."
esac
# FIXME: could some PLEASE simply that?
SLASHES=$(echo $SVC_A | sed -e 's,/$,,' -e 's,[^/],,g' -e 's,/,../,g' -e 's,^,../../,')
DEST_NAME=$(echo $SVC_B | sed -e 's,/$,,' -e 's,/,-,g')
SOURCE="${SLASHES}${SVC_B}"
DEST="${BASEDIR}/${SVC_A}/${DEP}/${DEST_NAME}"
echo -n "Linking $SOURCE to $DEST ... "
ln -sf "$SOURCE" "$DEST"
echo "finished."