#!/bin/sh -e
#
# release: grab the os/distro release version
#
# Copyright (C) 2008 Canonical Ltd.
# Copyright (C) 2011-2023 Dustin Kirkland
#
# Authors: Dustin Kirkland <kirkland@byobu.org>
#
# This program is free software: you can redistribute it and/or modify
# it under the terms of the GNU General Public License as published by
# the Free Software Foundation, version 3 of the License.
#
# This program is distributed in the hope that it will be useful,
# but WITHOUT ANY WARRANTY; without even the implied warranty of
# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
# GNU General Public License for more details.
#
# You should have received a copy of the GNU General Public License
# along with this program. If not, see <http://www.gnu.org/licenses/>.
__release_detail() {
lsb_release -a 2>/dev/null
}
__release() {
local RELEASE="${RELEASE}"
if [ -n "$RELEASE" ]; then
# user defined
true
elif [ "$BYOBU_DISTRO" = "Wolfi" ]; then
# Wolfi, and perhaps other distroless distros don't really have release versions
RELEASE="Wolfi"
elif [ -r "/etc/os-release" ]; then
# lsb_release is *really* slow; try to use /etc/os-release
RELEASE=$(. /etc/os-release && echo "$VERSION_ID")
elif [ -r "/etc/issue" ]; then
# next try /etc/issue first
local issue
read issue < /etc/issue
case "$issue" in
Ubuntu*)
set -- $issue;
RELEASE="$2";
;;
Debian*)
local ver
read ver < /etc/debian_version
RELEASE="$ver"
;;
esac
elif eval $BYOBU_TEST sw_vers >/dev/null 2>&1; then
RELEASE="$(sw_vers -productVersion)"
fi
if [ -z "$RELEASE" ] && eval $BYOBU_TEST lsb_release >/dev/null 2>&1; then
# If lsb_release is available, use it
RELEASE=$(lsb_release -s -r)
fi
if [ -n "$RELEASE_ABBREVIATED" ] && [ $RELEASE_ABBREVIATED -gt 0 ]; then
color bold2; printf "%.${RELEASE_ABBREVIATED}s" "$RELEASE"; color --
else
color bold2; printf "%s" "$RELEASE"; color --
fi
}
# vi: syntax=sh ts=4 noexpandtab
Mini Shell