Add a script to create the /var/db/mergemaster.mtree file for new

releases so that when users subsequently update their source trees
they can make use of mergemaster's -U option.

1 files changed, 155 insertions, 0 deletions

diff --git a/release/scripts/mm-mtree.sh b/release/scripts/mm-mtree.sh
new file mode 100755
index 0000000..d132a34
--- /dev/null
+++ b/release/scripts/mm-mtree.sh
@@ -0,0 +1,155 @@
+#!/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 csup'ing
+# 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: ${0##*/} [-m /path] [-t /path] [-A arch] [-F <make args>] [-D /path]"
+  echo "Options:"
+  echo "  -m /path/directory  Specify location of source to do the make in"
+  echo "  -t /path/directory  Specify temp root directory"
+  echo "  -A architecture  Alternative architecture name to pass to make"
+  echo "  -F <arguments for make> Specify what to put on the make command line"
+  echo '  -D /path/directory  Specify the destination directory to install files to'
+  echo ''
+}
+
+# Set the default path for the temporary root environment
+#
+TEMPROOT='/var/tmp/temproot'
+
+# Assign the location of the mtree database
+#
+MTREEDB=${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
+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 -ci -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