Index: head/tools/build/beinstall.sh
===================================================================
--- head/tools/build/beinstall.sh	(nonexistent)
+++ head/tools/build/beinstall.sh	(revision 302977)
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+#!/bin/sh
+#
+# Copyright (c) 2016 Will Andrews
+# All rights reserved.
+#
+# Redistribution and use in source and binary forms, with or without
+# modification, are permitted provided that the following conditions
+# are met:
+# 1. Redistributions of source code must retain the above copyright
+#    notice, this list of conditions and the following disclaimer 
+#    in this position and unchanged.
+# 2. Redistributions in binary form must reproduce the above copyright
+#    notice, this list of conditions and the following disclaimer in the
+#    documentation and/or other materials provided with the distribution.
+#
+# THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR
+# IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
+# OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.
+# IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT,
+# INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
+# NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
+# DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
+# THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
+# (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF
+# THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
+#
+# $FreeBSD$
+#
+##
+# Install a boot environment using the current FreeBSD source tree.
+# Requires a fully built world & kernel.
+#
+# Non-base tools required: beadm, pkg
+#
+# In a sandbox for the new boot environment, this script also runs etcupdate
+# and pkg upgrade automatically in the sandbox.  Upon successful completion,
+# the system will be ready to boot into the new boot environment.  Upon
+# failure, the target boot environment will be destroyed.  In all cases, the
+# running system is left untouched.
+#
+## Usage:
+# beinstall [optional world/kernel flags e.g. KERNCONF]
+#
+## User modifiable variables - set these in the environment if desired.
+# If not empty, 'pkg upgrade' will be skipped.
+NO_PKG_UPGRADE="${NO_PKG_UPGRADE:-""}"
+# Config updater - 'etcupdate' and 'mergemaster' are supported.  Set to an
+# empty string to skip.
+CONFIG_UPDATER="${CONFIG_UPDATER:-"etcupdate"}"
+# Flags for etcupdate if used.
+ETCUPDATE_FLAGS="${ETCUPDATE_FLAGS:-"-F"}"
+# Flags for mergemaster if used.
+MERGEMASTER_FLAGS="${MERGEMASTER_FLAGS:-"-iFU"}"
+
+
+########################################################################
+## Constants
+ETCUPDATE_CMD="etcupdate"
+MERGEMASTER_CMD="mergemaster"
+
+## Functions
+cleanup() {
+	[ -z "${cleanup_commands}" ] && return
+	echo "Cleaning up ..."
+	for command in ${cleanup_commands}; do
+		${command}
+	done
+}
+
+errx() {
+	cleanup
+	echo "error: $*"
+	exit 1
+}
+
+rmdir_be() {
+	chflags -R noschg ${BE_MNTPT}
+	rm -rf ${BE_MNTPT}
+}
+
+cleanup_be() {
+	beadm destroy -F ${BENAME}
+}
+
+update_mergemaster() {
+	mergemaster -m $(pwd) -D ${BE_MNTPT} -t ${BE_MM_ROOT} ${MERGEMASTER_FLAGS}
+}
+
+update_etcupdate() {
+	etcupdate -s $(pwd) -D ${BE_MNTPT} ${ETCUPDATE_FLAGS} || return $?
+	etcupdate resolve -D ${BE_MNTPT}
+}
+
+
+cleanup_commands=""
+trap 'errx "Interrupt caught"' HUP INT TERM
+
+[ "$(whoami)" != "root" ] && errx "Must be run as root"
+
+[ ! -f "Makefile.inc1" ] && errx "Must be in FreeBSD source tree"
+objdir=$(make -V .OBJDIR 2>/dev/null)
+[ ! -d "${objdir}" ] && errx "Must have built FreeBSD from source tree"
+
+if [ -d .git ] ; then
+    commit_time=$(git show --format='%ct' 2>/dev/null | head -1)
+    [ $? -ne 0 ] && errx "Can't lookup git commit timestamp"
+    commit_ts=$(date -r ${commit_time} '+%Y%m%d.%H%M%S')
+elif [ -d .svn ] ; then
+    commit_ts=$( svn info | awk '/Last Changed Date/ {print $4 "." $5}' | tr -d :- )
+    [ $? -ne 0 ] && errx "Can't lookup Subversion commit timestamp"
+else
+    errx "Unable to determine sandbox type"
+fi
+
+commit_ver=$(${objdir}/bin/freebsd-version/freebsd-version -u 2>/dev/null)
+[ -z "${commit_ver}" ] && errx "Unable to determine FreeBSD version"
+
+BENAME="${commit_ver}-${commit_ts}"
+
+BE_TMP=$(mktemp -d /tmp/beinstall.XXXXXX)
+[ $? -ne 0 -o ! -d ${BE_TMP} ] && errx "Unable to create mountpoint"
+[ -z "$NO_CLEANUP_BE" ] && cleanup_commands="rmdir_be ${cleanup_commands}"
+BE_MNTPT=${BE_TMP}/mnt
+BE_MM_ROOT=${BE_TMP}/mergemaster # mergemaster will create
+mkdir -p ${BE_MNTPT}
+
+beadm create ${BENAME} >/dev/null || errx "Unable to create BE ${BENAME}"
+[ -z "$NO_CLEANUP_BE" ] && cleanup_commands="cleanup_be ${cleanup_commands}"
+
+beadm mount ${BENAME} ${BE_TMP}/mnt || errx "Unable to mount BE ${BENAME}."
+
+echo "Mounted ${BENAME} to ${BE_MNTPT}, performing install/update ..."
+make $* DESTDIR=${BE_MNTPT} installkernel || errx "Installkernel failed!"
+make $* DESTDIR=${BE_MNTPT} installworld || errx "Installworld failed!"
+
+if [ -n "${CONFIG_UPDATER}" ]; then
+	"update_${CONFIG_UPDATER}"
+	[ $? -ne 0 ] && errx "${CONFIG_UPDATER} failed!"
+fi
+
+BE_PKG="chroot ${BE_MNTPT} env ASSUME_ALWAYS_YES=true pkg"
+if [ -z "${NO_PKG_UPGRADE}" ]; then
+	${BE_PKG} update || errx "Unable to update pkg"
+	${BE_PKG} upgrade || errx "Unable to upgrade pkgs"
+fi
+
+beadm unmount ${BENAME} || errx "Unable to unmount BE"
+rmdir_be
+beadm activate ${BENAME} || errx "Unable to activate BE"
+echo
+beadm list
+echo
+echo "Boot environment ${BENAME} setup complete; reboot to use it."

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+*
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