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# Copyright 1999-2007 Gentoo Foundation
# Distributed under the terms of the GNU General Public License v2
# $Header: $
#
# Original Author: root
# Purpose: To handle the postgresql selection related tasks.
#
inherit versionator
ECLASS="postgresql"
INHERITED="$INHERITED $ECLASS"
# Usage: postgresql_version_in_range [version[ min_version[ max_version]]]
# Returns $?=0 if in range
postgresql_version_in_range() {
local v="$1" min="$2" max="$3"
if [[ ! -z "$min" ]] ; then
version_compare "$min" "$v"
[[ "$?" = "3" ]] && return 1
fi
if [[ ! -z "$max" ]] ; then
version_compare "$max" "$v"
[[ "$?" = "1" ]] && return 2
fi
return 0
}
# Usage: postgresql_get_versions_range [ min_version[ max_version]]
postgresql_get_versions_range() {
local min="$1" max="$2"
for s in /usr/lib/eselect-postgresql/slots/* ; do
[[ -d "$s" ]] || continue
local v="$(basename $s)"
postgresql_version_in_range "$v" "$min" "$max" || continue
echo "$v"
done
}
# Usage: postgresql_get_sorted_versions [ min_version[ max_version]]
postgresql_get_sorted_versions() {
version_sort $(postgresql_get_versions_range "$1" "$2")
}
# Usage: postgresql_find_version [min_version[ max_version[ strategy]]]
# min_version - minimum supported version (empty string if any)
# max_version - maximum supported version (empty string if any)
# strategy - best, worst (that is, if eselected version isn't in range)
# (best is default)
# Returns selected version string
postgresql_find_version() {
local min="$1" max="$2" strategy="$3"
local eselected="$(eselect postgresql show)"
if [[ "$eselected" != "(none)" ]] ; then
postgresql_version_in_range "$eselected" "$min" "$max" && { echo "$eselected" ; return 0; }
fi
local vers=( $(postgresql_get_sorted_versions "$min" "$max") )
case "$strategy" in
worst)
echo "${vers[0]}"
;;
*)
echo "${vers[${#vers[@]}-1]}"
;;
esac
}
# Usage: postgresql_get_bindir [min_version[ max_version[ strategy]]]
# See postgresql_find_version
# Returns path to binaries
postgresql_get_bindir() {
local ver="$(postgresql_find_version "$1" "$2" "$3")"
(. /usr/lib/eselect-postgresql/slots/$ver/libs ; echo $postgres_bindir )
}
# Usage: postgresql_get_pgconfig [min_version[ max_version[ strategy]]]
# See postgresql_find_version
# Returns path to pg_config
postgresql_get_pgconfig() {
echo "$(postgresql_get_bindir "$1" "$2" "$3")/pg_config"
}
# Usage: postgresql_get_bindir_for_slot slot
# Returns path to binaries for exact slot
postgresql_get_bindir_for_slot() {
(. /usr/lib/eselect-postgresql/slots/$1/libs ; echo $postgres_bindir)
}
# Usage: postgresql_get_pgconfig_for_slot slot
# Returns path to pg_config for exact slot
postgresql_get_pgconfig_for_slot() {
echo "$(. /usr/lib/eselect-postgresql/slots/$1/libs ; echo $postgres_bindir)/pg_config"
}
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