65 lines
2.0 KiB
Bash
Executable File
65 lines
2.0 KiB
Bash
Executable File
#!/bin/bash
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#
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# 40-updates - create the list of packages for update with caching
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# Copyright (c) 2015 Arkadiusz Raj
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#
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# Author: Arkadiusz Raj arek.raj@gmail.com
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#
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# This program is free software; you can redistribute it and/or modify
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# it under the terms of the GNU General Public License as published by
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# the Free Software Foundation; either version 2 of the License, or
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# (at your option) any later version.
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#
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# This program is distributed in the hope that it will be useful,
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# but WITHOUT ANY WARRANTY; without even the implied warranty of
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# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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# GNU General Public License for more details.
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#
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# You should have received a copy of the GNU General Public License along
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# with this program; if not, write to the Free Software Foundation, Inc.,
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# 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.
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lock_file='/var/run/armbian-motd-updates.lock'
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if { set -C; 2>/dev/null >${lock_file}; }; then
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trap "rm -f ${lock_file}" EXIT
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else
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exit 0
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fi
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# give up if packages are broken
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[[ $(dpkg -l | grep ^..r) ]] && exit 0
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# give up if there is a dependency problem
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[[ "$((apt-get upgrade -s -qq) 2>&1)" == *"Unmet dependencies"* ]] && exit 0
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myfile="/var/cache/apt/archives/updates.number"
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myfiles="/var/cache/apt/archives/updates.list"
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# update procedure
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DISTRO=$(lsb_release -c | cut -d ":" -f 2 | tr -d '[:space:]') && DISTRO=${DISTRO,,}
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# run around the packages
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upgrades=0
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security_upgrades=0
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while IFS= read -r LINE; do
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# increment the upgrade counter
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(( upgrades++ ))
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# keep another count for security upgrades
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[[ ${LINE} == *"${DISTRO}-sec"* ]] && (( security_upgrades++ ))
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done < <(apt-get upgrade -s -qq | sed -n '/^Inst/p')
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cat >|${myfile} <<EOT
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NUM_UPDATES="${upgrades}"
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NUM_UPDATES_ONHOLD="$(dpkg --list | grep ^hi | grep $(uname -r) | wc -l)"
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NUM_SECURITY_UPDATES="${security_upgrades}"
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DATE="$(date +"%Y-%m-%d %H:%M")"
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EOT
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# store packages list
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dpkg --list | grep ^hi | grep $(uname -r) | awk '{ print $2 }' >| ${myfiles}
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exit 0
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