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#!/bin/bash
# Copyright (C) 2016 by Mihai Moldovan <ionic@ionic.de>
#
# This programme 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; either version 3 of the License, or
# (at your option) any later version.
#
# This programme 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, write to the
# Free Software Foundation, Inc.,
# 51 Franklin St, Fifth Floor, Boston, MA 02110-1301, USA.
export PATH="${HOME}/bin:${PATH}"
# ${CDPATH} could lead to some very nasty problems. Better unset it.
unset CDPATH
# Takes a Debian code name and converts it into the
# corresponding numerical version.
# The result is printed as a string with a trailing newline.
# The return code is either 0, iff mapping was successful,
# or 1 if the code name is unknown and mapping failed.
# Where supported (BASH 4 and higher), automatically
# lower-case the codename argument.
if [ -n "${BASH_VERSINFO[0]}" ] && [ "${BASH_VERSINFO[0]}" -gt 3 ]; then
typeset -l codename
fi
codename="${1:?"No code name provided."}"
if [ -z "${BASH_VERSINFO[0]}" ] || [ "${BASH_VERSINFO[0]}" -lt 4 ]; then
codename="$(tr '[:upper:]' '[:lower:]' <<< "${codename}")"
fi
typeset -i ret="0"
case "${codename}" in
# The first version number is actually "fake",
# but given it's a rolling release,
# we can't really do better here.
("devel") echo "9999";;
("eoan") echo "19.10";;
("disco") echo "19.04";;
("cosmic") echo "18.10";;
("bionic") echo "18.04";;
("artful") echo "17.10";;
("zesty") echo "17.04";;
("yakkety") echo "16.10";;
("xenial") echo "16.04";;
("wily") echo "15.10";;
("vivid") echo "15.04";;
("utopic") echo "14.10";;
("trusty") echo "14.04";;
("saucy") echo "13.10";;
("raring") echo "13.04";;
("precise") echo "12.04";;
("quantal") echo "12.10";;
("oneiric") echo "11.10";;
("natty") echo "11.04";;
("maverick") echo "10.10";;
("lucid") echo "10.04";;
("karmic") echo "9.10";;
("jaunty") echo "9.04";;
("intrepid") echo "8.10";;
("hardy") echo "8.04";;
("gutsy") echo "7.10";;
("feisty") echo "7.04";;
("edgy") echo "6.10";;
("dapper") echo "6.06";;
("breezy") echo "5.10";;
("hoary") echo "5.04";;
("warty") echo "4.10";;
(*) ret="1";;
esac
exit "${ret}"
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