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########################################################################
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# snaps.sh - Upgrade your OpenBSD OS base to last -current snapshot
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# Copyright (c) 2017, Fred Galusik <f AT galusik.xyz>
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# All rights reserved.
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# Redistribution and use in source and binary forms, with or without
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# modification, are permitted provided that the following conditions are
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# 1. Redistributions of source code must retain the above copyright
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# notice, this list of conditions and the following disclaimer.
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# 2. Redistributions in binary form must reproduce the above copyright
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# notice, this list of conditions and the following disclaimer in the
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# documentation and/or other materials provided with the distribution.
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# 3. Neither the name of the copyright holder nor the names of its
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# contributors may be used to endorse or promote products derived from
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# this software without specific prior written permission.
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# THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
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# "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
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# LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
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# A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
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# HOLDER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
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# SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
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# LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
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# DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
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# THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
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# (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
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# OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
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########################################################################
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VERSION=1.2
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if [ ! $MIRROR ]; then
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MIRROR=$(grep -v "^#" /etc/installurl)
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ARCH=$(uname -m)
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MIRRORB=${MIRROR}/snapshots/${ARCH}/
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MIRRORPKG=${MIRROR}/snapshots/packages/${ARCH}/
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BSDRD=bsd.rd
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SHAF=SHA256
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SIGF=SHA256.sig
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SIGNPUB=/etc/signify/openbsd-$(uname -r | sed 's/\.//')-base.pub
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GET='ftp -n -m -C'
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REBOOT='/sbin/reboot'
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LOGF=/var/log/snaps.log
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NOW=$(date "+ %Y-%m-%d %R")
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REMOTESNAPS='https://framagit.org/fredg/snaps/raw/master/snaps'
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LASTSNAPS=/tmp/snaps
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toupgrade() {
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echo "\n=== NEW VERSION CHECKING ==="
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# some cleanup to not let ftp warn about not supporting resume
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if [[ -f $LASTSNAPS ]]; then
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rm -f $LASTSNAPS
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$GET -V -o "$LASTSNAPS" "$REMOTESNAPS"
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REMOTEVERSION=$(awk -F '=' '/^VERSION=/ { print $2 }' "$LASTSNAPS")
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if [ $? -eq 0 ]; then
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if [ "$VERSION" != "$REMOTEVERSION" ]; then
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echo "==> WARNING: snaps is not up-to-date !"
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echo "Last version: $REMOTEVERSION"
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echo "To upgrade, run 'snaps -u'"
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echo "==> GOOD: snaps is up-to-date"
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echo "==> WARNING: Remote snaps not reachable ! Check the connection."
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upgrade() {
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SELFPATH=$(dirname $(readlink -f -- "$0"))
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echo "Downloading last snaps version"
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$GET -o "$SELFPATH" "$REMOTESNAPS"
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echo ""
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echo "${0##*/} $VERSION"
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echo "Usage: ${0##*/} [-gGlh]"
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echo " -g fetch and check bsd.rd from \$MIRROR"
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echo " -G fetch, check and install bsd.rd from \$MIRROR"
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echo " -p update port tree to current"
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echo " -l list date and \$MIRROR of 3 last bsd.rd"
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echo " -u upgrade snaps to last version"
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echo " -h print this help and exit"
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echo ""
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echo "MIRROR is based upon /etc/installurl and set to: $MIRROR"
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echo ""
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echo "You can set it manually:"
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echo "\$ MIRROR=http://mirrors.ircam.fr/pub/OpenBSD doas snaps -G"
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echo ""
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if [[ $(id -u) != "0" ]]; then
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echo "==> WARNING: You need to be root to do this" 1>&2
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echo "$NOW FROM $MIRRORB" >> $LOGF
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get_log() {
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if [[ -f $LOGF ]]; then
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tail -n 3 $LOGF
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echo "No $LOGF file. Seems you have not yet played with snaps"
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echo "\n=== FETCHING FILES ==="
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for _i in $BSDRD $SHAF $SIGF; do
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if [[ -f ${_i} ]]; then
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echo "\nDeleted old ${_i}"
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echo "==> Fetching new ${_i}"
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$GET $MIRRORB${_i} || exit 1
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s_check() {
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echo "\n=== FILE INTEGRITY CHECKING ==="
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echo "Sign key: $SIGNPUB"
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if [[ $(signify -C -p $SIGNPUB -x $SIGF $BSDRD | awk '/'$BSDRD'/ {print $2}') = $OK ]]; then
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echo "==> GOOD: $SHAF file is coming from OpenBSD"
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echo "==> WARNING: $SHAF is not coming from OpenBSD, aborting!!"
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if [[ $(sha256 -c $SHAF 2>&1 | awk '/'$BSDRD'/ {print $3}') = $OK ]]; then
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echo "==> GOOD: bsd.rd integrity checked"
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echo "==> WARNING: bsd.rd seems corrupted, aborting!!"
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echo "\n=== MOVING FILE ==="
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cp -p /bsd /bsd.o || exit 1
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mv /bsd.rd /bsd.o.rd || exit 1
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mv $BSDRD / || exit 1
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echo "==> New bsd.rd installed and old files saved"
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echo "You can reboot your OS"
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echo "Type bsd.rd at the boot prompt, [enter] and choose (U)pgrade"
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echo "If something goes wrong, you can still boot your old kernel"
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echo "Just type bsd.o at the boot prompt"
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echo -n "==> Do you want to do it now ? (y/n) "
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case ${_a} in
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echo "After the upgrade, run sysmerge(8)"
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echo "Then, update packages or ports"
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echo "==> Rebooting..."
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echo -n "Do you want to put the old bsd.rd back ? (y/n) "
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case ${_b} in
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rm /bsd.rd || exit 1
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rm /bsd.o || exit 1
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mv /bsd.o.rd /bsd.rd || exit 1
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echo "Done!"
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echo "Aborting..."
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s_upports() {
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echo "\n=== UPDATE PORTS TREE ==="
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cd /usr/ports || exit 1
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cvs up -Pd || exit 1
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echo "==> New port tree fetched"
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s_when() {
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# will only be done if curl from port/package is installed
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CURL=/usr/local/bin/curl
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if [[ -e $CURL ]]; then
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CURLB="$($CURL -sI ${MIRRORB}${SHAF} | grep Last-Modified)"
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CURLP="$($CURL -sI ${MIRRORPKG}${SHAF} | grep Last-Modified)"
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echo "\n=== BASE AND PACKAGES BUILD DATE ==="
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echo "From ${MIRROR}"
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echo "Base ($ARCH) => $CURLB"
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echo "Packages ($ARCH) => $CURLP"
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echo ""
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echo -n "Do you want to continue ? (y/n): "
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read _c
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case ${_c} in
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echo "Aborting..."
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toupgrade
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toupgrade
