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#!/bin/sh
# mergemaster mtree database generator
# This script is intended to be used as part of the release building
# process to generate the /var/db/mergemaster.mtree file relevant to
# the source tree used to create the release so that users can make
# use of mergemaster's -U option to update their files after updating
# to -stable.
# Copyright 2009 Douglas Barton
# dougb@FreeBSD.org
# $FreeBSD$
PATH=/bin:/usr/bin:/usr/sbin
display_usage () {
VERSION_NUMBER=`grep "[$]FreeBSD:" $0 | cut -d ' ' -f 4`
echo "${0##*/} version ${VERSION_NUMBER}"
echo "Usage: ${0##*/} [-m /path] [-t /path] [-A arch] [-F <make args>] [-D /path]"
echo "Options:"
echo " -m /path/directory Specify location of source to do the make in"
echo " -t /path/directory Specify temp root directory"
echo " -A architecture Alternative architecture name to pass to make"
echo " -F <arguments for make> Specify what to put on the make command line"
echo ' -D /path/directory Specify the destination directory to install files to'
echo ''
}
# Set the default path for the temporary root environment
#
TEMPROOT=`TMPDIR=/var/tmp mktemp -d -t temproot`
# Assign the location of the mtree database
#
MTREEDB=${MTREEDB:-/var/db}
MTREEFILE="${MTREEDB}/mergemaster.mtree"
# Check the command line options
#
while getopts "m:t:A:F:D:h" COMMAND_LINE_ARGUMENT ; do
case "${COMMAND_LINE_ARGUMENT}" in
m)
SOURCEDIR=${OPTARG}
;;
t)
TEMPROOT=${OPTARG}
;;
A)
ARCHSTRING='TARGET_ARCH='${OPTARG}
;;
F)
MM_MAKE_ARGS="${OPTARG}"
;;
D)
DESTDIR=${OPTARG}
;;
h)
display_usage
exit 0
;;
*)
echo ''
display_usage
exit 1
;;
esac
done
# Assign the source directory
#
SOURCEDIR=${SOURCEDIR:-/usr/src}
if [ ! -f ${SOURCEDIR}/Makefile.inc1 -a \
-f ${SOURCEDIR}/../Makefile.inc1 ]; then
echo " *** The source directory you specified (${SOURCEDIR})"
echo " will be reset to ${SOURCEDIR}/.."
echo ''
sleep 3
SOURCEDIR=${SOURCEDIR}/..
fi
# Setup make to use system files from SOURCEDIR
objp=${MAKEOBJDIRPREFIX}
[ -z "${objp}" ] && objp=/usr/obj
legacydir=${objp}${SOURCEDIR}/tmp/legacy
legacypath=${legacydir}/usr/sbin:${legacydir}/usr/bin:${legacydir}/bin
MM_MAKE_ARGS="${MM_MAKE_ARGS} PATH=${legacypath}:${PATH}"
MM_MAKE="make ${ARCHSTRING} ${MM_MAKE_ARGS} -m ${SOURCEDIR}/share/mk"
delete_temproot () {
rm -rf "${TEMPROOT}" 2>/dev/null
chflags -R 0 "${TEMPROOT}" 2>/dev/null
rm -rf "${TEMPROOT}" || exit 1
}
[ -d "${TEMPROOT}" ] && delete_temproot
echo "*** Creating the temporary root environment in ${TEMPROOT}"
if mkdir -p "${TEMPROOT}"; then
echo " *** ${TEMPROOT} ready for use"
fi
if [ ! -d "${TEMPROOT}" ]; then
echo ''
echo " *** FATAL ERROR: Cannot create ${TEMPROOT}"
echo ''
exit 1
fi
echo " *** Creating and populating directory structure in ${TEMPROOT}"
echo ''
{ cd ${SOURCEDIR} || { echo "*** Cannot cd to ${SOURCEDIR}" ; exit 1;}
case "${DESTDIR}" in
'') ;;
*)
${MM_MAKE} DESTDIR=${DESTDIR} distrib-dirs
;;
esac
od=${TEMPROOT}/usr/obj
${MM_MAKE} DESTDIR=${TEMPROOT} distrib-dirs &&
MAKEOBJDIRPREFIX=$od ${MM_MAKE} _obj SUBDIR_OVERRIDE=etc &&
MAKEOBJDIRPREFIX=$od ${MM_MAKE} everything SUBDIR_OVERRIDE=etc &&
MAKEOBJDIRPREFIX=$od ${MM_MAKE} DESTDIR=${TEMPROOT} distribution;} ||
{ echo '';
echo " *** FATAL ERROR: Cannot 'cd' to ${SOURCEDIR} and install files to";
echo " the temproot environment";
echo '';
exit 1;}
# We really don't want to have to deal with files like login.conf.db, pwd.db,
# or spwd.db. Instead, we want to compare the text versions, and run *_mkdb.
# Prompt the user to do so below, as needed.
#
rm -f ${TEMPROOT}/etc/*.db ${TEMPROOT}/etc/passwd
# We only need to compare things like freebsd.cf once
find ${TEMPROOT}/usr/obj -type f -delete 2>/dev/null
# Delete stuff we do not need to keep the mtree database small,
# and to make the actual comparison faster.
find ${TEMPROOT}/usr -type l -delete 2>/dev/null
find ${TEMPROOT} -type f -size 0 -delete 2>/dev/null
find -d ${TEMPROOT} -type d -empty -delete 2>/dev/null
# Build the mtree database in a temporary location.
MTREENEW=`mktemp -t mergemaster.mtree`
mtree -nci -p ${TEMPROOT} -k size,md5digest > ${MTREENEW} 2>/dev/null
if [ -s "${MTREENEW}" ]; then
echo "*** Saving mtree database for future upgrades"
test -e "${DESTDIR}${MTREEFILE}" && unlink ${DESTDIR}${MTREEFILE}
mv ${MTREENEW} ${DESTDIR}${MTREEFILE}
fi
delete_temproot
exit 0
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