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#!/bin/sh
# redundant-opt-files.sh
# Written by John Marino (marino@FreeBSD.org)
#
# This script checks every option file against the default options of
# its port. If they are identical, it writes the full path of the ports
# option directory (typically in /var/db/ports) to stdout.
# It is typically used by Synth users to identify options files that can
# deleted in order to prevent future configuration check failures.
portsdir=${PORTSDIR:-/usr/ports}
if [ ! -d "${portsdir}" ]; then
echo "The ${portsdir} ports directory does not exist"
echo "There is nothing more to do."
exit
fi
db_dir=$(/usr/bin/make -C ${portsdir}/devel/gmake -V PORT_DBDIR 2>/dev/null)
if [ ! -d "${db_dir}" ]; then
echo "The ${db_dir} ports option directory does not exist"
echo "There is nothing more to do."
exit
fi
catport() {
local category
local port
local workstr=${1#${db_dir}/}
local words=$(echo ${workstr} | /usr/bin/tr "_" " ");
for word in ${words}; do
category=${word}
break;
done
port=${workstr#${category}_}
echo ${portsdir}/$category/$port
}
identical_options() {
local origin=$(catport $1)
if [ ! -d ${origin} ]; then
# origin no longer exists, list it anyway without testing further
echo $1
return
fi
local selected_pristine=$(/usr/bin/make -C ${origin} \
-V SELECTED_OPTIONS PORT_DBDIR=/dev/null)
local selected_now=$(/usr/bin/make -C ${origin} -V SELECTED_OPTIONS)
local deselected_pristine=$(/usr/bin/make -C ${origin} \
-V DESELECTED_OPTIONS PORT_DBDIR=/dev/null)
local deselected_now=$(/usr/bin/make -C ${origin} -V DESELECTED_OPTIONS)
if [ "${selected_pristine}" = "${selected_now}" -a \
"${deselected_pristine}" = "${deselected_now}" ]; then
echo $1
fi;
}
optdirs=$(/usr/bin/find -s "${db_dir}" -type d -depth 1)
for dossier in ${optdirs}; do
identical_options ${dossier}
done
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