/release/scripts/mm-mtree.sh

  1#!/bin/sh
  2
  3# mergemaster mtree database generator
  4
  5# This script is intended to be used as part of the release building
  6# process to generate the /var/db/mergemaster.mtree file relevant to
  7# the source tree used to create the release so that users can make
  8# use of mergemaster's -U option to update their files after csup'ing
  9# to -stable.
 10
 11# Copyright 2009 Douglas Barton
 12# dougb@FreeBSD.org
 13
 14# $FreeBSD$
 15
 16PATH=/bin:/usr/bin:/usr/sbin
 17
 18display_usage () {
 19  VERSION_NUMBER=`grep "[$]FreeBSD:" $0 | cut -d ' ' -f 4`
 20  echo "${0##*/} version ${VERSION_NUMBER}"
 21  echo "Usage: ${0##*/} [-m /path] [-t /path] [-A arch] [-F <make args>] [-D /path]"
 22  echo "Options:"
 23  echo "  -m /path/directory  Specify location of source to do the make in"
 24  echo "  -t /path/directory  Specify temp root directory"
 25  echo "  -A architecture  Alternative architecture name to pass to make"
 26  echo "  -F <arguments for make> Specify what to put on the make command line"
 27  echo '  -D /path/directory  Specify the destination directory to install files to'
 28  echo ''
 29}
 30
 31# Set the default path for the temporary root environment
 32#
 33TEMPROOT='/var/tmp/temproot'
 34
 35# Assign the location of the mtree database
 36#
 37MTREEDB=${MTREEDB:-/var/db}
 38MTREEFILE="${MTREEDB}/mergemaster.mtree"
 39
 40# Check the command line options
 41#
 42while getopts "m:t:A:F:D:h" COMMAND_LINE_ARGUMENT ; do
 43  case "${COMMAND_LINE_ARGUMENT}" in
 44  m)
 45    SOURCEDIR=${OPTARG}
 46    ;;
 47  t)
 48    TEMPROOT=${OPTARG}
 49    ;;
 50  A)
 51    ARCHSTRING='TARGET_ARCH='${OPTARG}
 52    ;;
 53  F)
 54    MM_MAKE_ARGS="${OPTARG}"
 55    ;;
 56  D)
 57    DESTDIR=${OPTARG}
 58    ;;
 59  h)
 60    display_usage
 61    exit 0
 62    ;;
 63  *)
 64    echo ''
 65    display_usage
 66    exit 1
 67    ;;
 68  esac
 69done
 70
 71# Assign the source directory
 72#
 73SOURCEDIR=${SOURCEDIR:-/usr/src}
 74if [ ! -f ${SOURCEDIR}/Makefile.inc1 -a \
 75   -f ${SOURCEDIR}/../Makefile.inc1 ]; then
 76  echo " *** The source directory you specified (${SOURCEDIR})"
 77  echo "     will be reset to ${SOURCEDIR}/.."
 78  echo ''
 79  sleep 3
 80  SOURCEDIR=${SOURCEDIR}/..
 81fi
 82
 83# Setup make to use system files from SOURCEDIR
 84MM_MAKE="make ${ARCHSTRING} ${MM_MAKE_ARGS} -m ${SOURCEDIR}/share/mk"
 85
 86delete_temproot () {
 87  rm -rf "${TEMPROOT}" 2>/dev/null
 88  chflags -R 0 "${TEMPROOT}" 2>/dev/null
 89  rm -rf "${TEMPROOT}" || exit 1
 90}
 91
 92[ -d "${TEMPROOT}" ] && delete_temproot
 93
 94echo "*** Creating the temporary root environment in ${TEMPROOT}"
 95
 96if mkdir -p "${TEMPROOT}"; then
 97  echo " *** ${TEMPROOT} ready for use"
 98fi
 99
100if [ ! -d "${TEMPROOT}" ]; then
101  echo ''
102  echo "  *** FATAL ERROR: Cannot create ${TEMPROOT}"
103  echo ''
104  exit 1
105fi
106
107echo " *** Creating and populating directory structure in ${TEMPROOT}"
108echo ''
109
110{ cd ${SOURCEDIR} || { echo "*** Cannot cd to ${SOURCEDIR}" ; exit 1;}
111  case "${DESTDIR}" in
112  '') ;;
113  *)
114    ${MM_MAKE} DESTDIR=${DESTDIR} distrib-dirs
115    ;;
116  esac
117  od=${TEMPROOT}/usr/obj
118  ${MM_MAKE} DESTDIR=${TEMPROOT} distrib-dirs &&
119  MAKEOBJDIRPREFIX=$od ${MM_MAKE} _obj SUBDIR_OVERRIDE=etc &&
120  MAKEOBJDIRPREFIX=$od ${MM_MAKE} everything SUBDIR_OVERRIDE=etc &&
121  MAKEOBJDIRPREFIX=$od ${MM_MAKE} DESTDIR=${TEMPROOT} distribution;} ||
122  { echo '';
123    echo "  *** FATAL ERROR: Cannot 'cd' to ${SOURCEDIR} and install files to";
124    echo "      the temproot environment";
125    echo '';
126    exit 1;}
127
128# We really don't want to have to deal with files like login.conf.db, pwd.db,
129# or spwd.db.  Instead, we want to compare the text versions, and run *_mkdb.
130# Prompt the user to do so below, as needed.
131#
132rm -f ${TEMPROOT}/etc/*.db ${TEMPROOT}/etc/passwd
133
134# We only need to compare things like freebsd.cf once
135find ${TEMPROOT}/usr/obj -type f -delete 2>/dev/null
136
137# Delete stuff we do not need to keep the mtree database small,
138# and to make the actual comparison faster.
139find ${TEMPROOT}/usr -type l -delete 2>/dev/null
140find ${TEMPROOT} -type f -size 0 -delete 2>/dev/null
141find -d ${TEMPROOT} -type d -empty -delete 2>/dev/null
142
143# Build the mtree database in a temporary location.
144MTREENEW=`mktemp -t mergemaster.mtree`
145mtree -ci -p ${TEMPROOT} -k size,md5digest > ${MTREENEW} 2>/dev/null
146
147if [ -s "${MTREENEW}" ]; then
148  echo "*** Saving mtree database for future upgrades"
149  test -e "${DESTDIR}${MTREEFILE}" && unlink ${DESTDIR}${MTREEFILE}
150  mv ${MTREENEW} ${DESTDIR}${MTREEFILE}
151fi
152
153delete_temproot
154
155exit 0