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########################################################################
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# snaps - Check if you can upgrade your OpenBSD OS base to
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# last -current snapshot
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# Copyright (c) 2017-2020, Fred Galusik <f AT galusik.fr>
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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=1.3
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# choose your MIRROR
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true "${MIRROR:=$(grep -v "^#" /etc/installurl)}"
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# curl is mandatory
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if [ ! "$(which curl 2>/dev/null)" ]; then
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echo "WARNING: 'curl' is requested to run this program. Aborting..."
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CURL=$(whereis curl)
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ARCH=$(uname -m)
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BASE=/snapshots/${ARCH}/
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BASEF=/snapshots/${ARCH}/${SHA}
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PKGSF=/snapshots/packages/${ARCH}/${SHA}
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GET='/usr/bin/ftp -n -m -C'
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LOGF=/var/log/snaps.log
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echo "${0##*/} ${VERSION}"
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echo "Usage: ${0##*/} [-scalfuph]"
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echo " -s check \$MIRROR freshness & choose to sysupgrade or not"
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echo " -c check BASE and PACKAGES build dates from \$MIRROR"
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echo " -a check BASE and PACKAGES build dates from all available mirrors"
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echo " -l list date and \$MIRROR of the 3 last upgrade using this script"
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echo " -f read the online FAQ : Following -current and using snapshots"
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echo " -u upgrade snaps to last version"
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echo " -p update ports tree to -current"
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echo " -h print this help and exit"
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echo "MIRROR is based upon /etc/installurl and set to: ${MIRROR}"
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echo "You can set it manually:"
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echo "\$ MIRROR=http://mirrors.ircam.fr/pub/OpenBSD snaps -c"
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if [[ $(id -u) != "0" ]]; then
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echo "WARNING: You need to be root to do this! Aborting..." 1>&2
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s_toupgrade() {
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REMOTESNAPS='https://framagit.org/fredg/snaps/raw/master/snaps'
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LASTSNAPS=/tmp/snaps
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echo "Checking snaps release..."
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if [[ -f "${LASTSNAPS}" ]]; then
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rm -f "${LASTSNAPS}"
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if $GET -V -o "${LASTSNAPS}" "${REMOTESNAPS}"; then
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REMOTEVERSION=$(awk -F '=' '/^VERSION=/ { print $2 }' "${LASTSNAPS}")
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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: ${REMOTEVERSION}"
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echo "To upgrade, run 'snaps -u'"
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echo "GOOD: snaps is up-to-date."
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echo "WARNING: Remote snaps not reachable ! Check the connection."
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s_upgrade() {
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SELFPATH=$(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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get_log() {
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if [[ -f "${LOGF}" ]]; then
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tail -n 3 ${LOGF}
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echo "No ${LOGF} file. Seems you have not yet played with snaps."
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s_upports() {
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echo "Updating Ports tree..."
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cd /usr/ports || exit 1
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/usr/bin/cvs up -Pd || exit 1
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echo "New Ports tree fetched!"
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CURRENTSYS=$(sed q /var/run/dmesg.boot)
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echo "=== LOCAL BASE BUILD DATE ==="
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echo "${CURRENTSYS}"
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dev1
s_when() {
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CURLB="$(${CURL} -sI "${MIRROR}${BASEF}" | grep Last-Modified)"
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CURLP="$(${CURL} -sI "${MIRROR}${PKGSF}" | grep Last-Modified)"
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echo "=== ONLINE BASE AND PACKAGES BUILD DATES ==="
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echo "From ${MIRROR}"
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echo "Base (${ARCH}) => ${CURLB}"
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echo "Packages (${ARCH}) => ${CURLP}"
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s_sysup() {
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NOW=$(date "+ %Y-%m-%d %R")
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echo -n "Do you want to run 'sysupgrade -s' ? (y/n): "
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read -r _c
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case ${_c} in
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echo "Aborting..."
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echo "${NOW} FROM ${MIRROR}${BASE}" >> ${LOGF}
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/usr/sbin/sysupgrade -s
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read_faq() {
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FAQ='https://www.openbsd.org/faq/current.html'
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if [ "$(which links 2>/dev/null)" ]; then
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READ='links -dump'
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elif [ "$(which lynx 2>/dev/null)" ]; then
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READ='lynx --dump'
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echo "WARNING: You need 'links' or 'lynx' to read the online FAQ/CURRENT. Aborting..."
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${READ} ${FAQ} | less
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all_mirrors() {
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echo "Checking mirrors..."
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HTTPSLIST='https://cvsweb.openbsd.org/cgi-bin/cvsweb/~checkout~/www/httpslist'
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MIRRORLIST=$(${CURL} ${HTTPSLIST} | awk '{print $1}')
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for _m in ${MIRRORLIST}
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CB="$(${CURL} -sI "${_m}${BASEF}" | grep Last-Modified |\
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sed 's/Last-Modified: //')"
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CP="$(${CURL} -sI "${_m}${PKGSF}" | grep Last-Modified |\
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sed 's/Last-Modified: //')"
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# only print mirror which give an answer
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# FIXME try to figure out how to print 1 mirror per line
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if [ "${CB}" ]; then
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echo "${_m}"
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echo "${CB}"
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echo "${CP}"
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if [ $# -eq 0 ]; then
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s_toupgrade
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all_mirrors
