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#!/bin/sh
# print a list of PostgreSQL versions that are supported for the platform this
# script runs on.
# Note: Newer installed versions than the highest one listed here are always
# considered supported, so that backports will not cause an "obsolete" warning.
#
# /usr/share/postgresql-common/supported-versions decides which PostgreSQL
# server versions are supported. This information is used
# 1) for notifying users of obsolete versions, suggesting to upgrade
# 2) by postgresql-common itself (in debian/rules) to determine the
# dependencies of the postgresql meta packages (default version), and to
# generate the list of postgresql-server-dev-* packages
# postgresql-server-dev-all depends on
# 3) by the pg_buildext tool to decide which server versions to build extension
# modules for
#
# The *last* version returned here will be considered the default version, the
# remaining lines list other supported versions in an undefined order.
#
# * PG_SUPPORTED_VERSIONS
# * DEB_PG_SUPPORTED_VERSIONS
# * ~/.pg_supported_versions
# * /etc/postgresql-common/supported_versions
# (in that order) can be used to override the defaults. (Tokens separated by
# newlines.)
#
# Recognized tokens:
# default: use the appropiate defaults for the current distribution and release
# (as determined by os-release or lsb_release)
# debian [release]: use Debian defaults
# debian-backports [release]: use Debian Backports defaults
# ubuntu [release]: use Ubuntu defaults
# pgdg [release]: use defaults for apt.postgresql.org
# installed: consider all installed versions supported (determined by
# postgresql-server-dev-X packages)
# X: consider this version supported
#
# (C) 2005-2016 Martin Pitt <mpitt@debian.org>
# (C) 2012-2020 Christoph Berg <myon@debian.org>
set -eu
# at build time, use our pgcommon.sh, not the system one (this assumes
# debian/supported-versions is one directory deeper than ./pgcommon.sh)
if [ -e "${0%/supported-versions}/../pgcommon.sh" ]; then
. "${0%/supported-versions}/../pgcommon.sh"
else
. /usr/share/postgresql-common/pgcommon.sh
fi
DEFAULT="13"
# functions
default() {
case "$DISTRO" in
[uU]buntu)
ubuntu "$RELEASE"
;;
[dD]ebian)
debian "$RELEASE"
;;
*)
echo "supported-versions: WARNING! Unknown distribution: $DISTRO" >&2
if echo $ID_LIKE | egrep '(^| )ubuntu($| )' > /dev/null; then
echo "ubuntu found in ID_LIKE, treating as Ubuntu" >&2
ubuntu "$RELEASE"
elif echo $ID_LIKE | egrep '(^| )debian($| )' > /dev/null; then
echo "debian found in ID_LIKE, treating as Debian" >&2
debian "$RELEASE"
else
echo "Please submit this as a bug report to your distribution." >&2
/bin/echo -e "$DEFAULT"
fi
;;
esac
}
ubuntu() {
case "$1" in
12.04) /bin/echo -e "9.1" ;;
14.04) /bin/echo -e "9.3" ;;
16.04|16.10) /bin/echo -e "9.5" ;;
17.04|17.10) /bin/echo -e "9.6" ;;
18.04|18.10) /bin/echo -e "10" ;;
19.04|19.10) /bin/echo -e "11" ;;
20.04|20.10) /bin/echo -e "12" ;;
21.04|21.10) /bin/echo -e "13" ;;
*)
echo "supported-versions: WARNING: Unknown Ubuntu release: $1" >&2
/bin/echo -e "$DEFAULT" ;;
esac
}
debian() {
case "$1" in
5.0*) /bin/echo -e "8.3" ;; # Lenny
6.0*) /bin/echo -e "8.4" ;; # Squeeze
7|7.*) /bin/echo -e "9.1" ;; # Wheezy
8|8.*) /bin/echo -e "9.4" ;; # Jessie
9|9.*) /bin/echo -e "9.6" ;; # Stretch
10|10.*) /bin/echo -e "11" ;; # Buster
11|11.*) /bin/echo -e "13" ;; # Bullseye
testing | unstable)
/bin/echo -e "$DEFAULT" ;;
*)
echo "supported-versions: WARNING: Unknown Debian release: $1" >&2
/bin/echo -e "$DEFAULT" ;;
esac
}
debian_backports() {
case "$1" in
5.0*) /bin/echo -e "8.3" ;; # Lenny
6.0*) /bin/echo -e "8.4\n9.1" ;; # Squeeze
7|7.*) /bin/echo -e "9.1\n9.4" ;; # Wheezy
8|8.*) /bin/echo -e "9.4\n9.6" ;; # Jessie
9|9.*) /bin/echo -e "9.6" ;; # Stretch
10|10.*) /bin/echo -e "11" ;; # Buster
11|11.*) /bin/echo -e "13" ;; # Bullseye
testing | unstable)
/bin/echo -e "$DEFAULT" ;;
*)
echo "supported-versions: WARNING: Unknown Debian release: $1" >&2
/bin/echo -e "$DEFAULT" ;;
esac
}
pgdg() {
cat <<-EOF
9.5
9.6
10
11
12
13
EOF
}
installed() {
dpkg -l 'postgresql-server-dev-[1-9]*' | \
sed -ne 's/^ii *postgresql-server-dev-\([^ ]*\).*/\1/p' | \
sort -V
}
# main
if [ "${PG_SUPPORTED_VERSIONS:-}" ] ; then
SUPPORTED_VERSIONS=$(echo "$PG_SUPPORTED_VERSIONS" | xargs -n1)
elif [ "${DEB_PG_SUPPORTED_VERSIONS:-}" ] ; then
SUPPORTED_VERSIONS=$(echo "$DEB_PG_SUPPORTED_VERSIONS" | xargs -n1)
elif [ -f ${HOME:-}/.pg_supported_versions ] ; then
SUPPORTED_VERSIONS="$(cat ${HOME:-}/.pg_supported_versions)"
elif [ -f ${PGSYSCONFDIR:-/etc/postgresql-common}/supported_versions ] ; then
SUPPORTED_VERSIONS="$(cat ${PGSYSCONFDIR:-/etc/postgresql-common}/supported_versions)"
else
SUPPORTED_VERSIONS="default"
fi
echo "$SUPPORTED_VERSIONS" | while read version release; do
COMMENT="#"
case $version in
"") ;;
$COMMENT*) ;;
default)
get_release
default
;;
debian)
get_release
debian "${release:-$RELEASE}"
;;
debian-backports)
get_release
debian_backports "${release:-$RELEASE}"
;;
ubuntu)
get_release
ubuntu "${release:-$RELEASE}"
;;
pgdg) # apt.postgresql.org
get_release
pgdg "${release:-$RELEASE}"
;;
installed)
installed
;;
*)
/bin/echo -e "$version"
;;
esac
done
exit 0
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