chrony-updater.md

Chrony Updater

chrony-updater.sh

#!/bin/bash

if [ "${LOGNAME}" != "root" ]; then
    echo "This script must be ran by the 'root' user, but was ran by the ${LOGNAME} instead."
    exit 1
fi

UPDATE=0

################################################################################

aptupdate(){
    PACKETS="libtomcrypt-dev nettle-dev build-essential libcap-dev bison"
    dpkg --get-selections |sed 's/:/ /g' |awk '{print $1}' > /tmp/installed-packages.txt
    INSTALLPACKETS=""
    for a in $PACKETS
    do
        if [ `egrep "^$a$" /tmp/installed-packages.txt |wc -l` != "1" ]; then
            echo "$a is not installed"
            INSTALLPACKETS="$a $INSTALLPACKETS"
        fi
    done
    rm -f /tmp/installed-packages.txt
    if [ "$INSTALLPACKETS" != "" ]; then
        apt install -y $INSTALLPACKETS
    fi
}

if [ ! `getent passwd _chrony |wc -l` -eq 1 ]; then
    adduser --system --group --comment 'Chrony daemon' --home /var/lib/chrony --quiet _chrony
fi

################################################################################

if [ -f /var/src/chrony/.git/config ]; then
    cd /var/src/chrony/
    OLDGITID="`git rev-parse HEAD`"
    NEWGITID="`git rev-parse origin/master`"
    NEWGITID=`git ls-remote --heads https://gitlab.com/chrony/chrony.git |grep "refs/heads/master" |awk '{ print $1 }'`
    if [ "${OLDGITID}" != "${NEWGITID}" ]; then
        git pull -q
        UPDATE=1
    fi
else
    aptupdate
    mkdir -p /var/src; rm -rf /var/src/chrony
    git clone -q https://gitlab.com/chrony/chrony.git /var/src/chrony
    cd /var/src/chrony
    UPDATE=1
fi

if [ ${UPDATE} == 1 ]; then
    echo -n "`git rev-parse --short HEAD`" > version.txt && \
    git log -1 --format="%at" | xargs -I{} date -d @{} +_%Y-%m-%d >> version.txt && \
    ./configure --prefix=/usr --sysconfdir=/etc/chrony --with-user=_chrony --enable-scfilter && \
    sed -i 's/$(MAKE) -C doc install//g' Makefile && make clean && make && make install && \
    systemctl restart chronyd.service && echo "Install Complete!"
fi