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# Copyright 1999-2022 Gentoo Authors
# Distributed under the terms of the GNU General Public License v2
# This is a common location for functions that aid the use of sys-libs/db
#
# @ECLASS: db-use.eclass
# @MAINTAINER:
# maintainer-needed@gentoo.org
# @AUTHOR:
# Paul de Vrieze <pauldv@gentoo.org>
# @SUPPORTED_EAPIS: 7 8
# @BLURB: This is a common location for functions that aid the use of sys-libs/db
# @DESCRIPTION:
# This eclass is designed to provide helpful functions for depending on
# sys-libs/db.
# multilib is used for get_libname in all EAPI
case ${EAPI} in
7|8) inherit multilib ;;
*) die "${ECLASS}: EAPI ${EAPI:-0} not supported" ;;
esac
#Convert a version to a db slot
db_ver_to_slot() {
if [ $# -ne 1 ]; then
eerror "Function db_ver_to_slot needs one argument" >&2
eerror "args given:" >&2
for f in $@
do
eerror " - \"$@\"" >&2
done
return 1
fi
# 5.0.x uses 5.0 as slot value, so this replacement will break it;
# older sys-libs/db might have been using this but it's no longer
# the case, so make it work for latest rather than older stuff.
# echo -n "${1/.0/}"
echo -n "$1"
}
#Find the version that correspond to the given atom
db_findver() {
if [ $# -ne 1 ]; then
eerror "Function db_findver needs one argument" >&2
eerror "args given:" >&2
for f in $@
do
eerror " - \"$@\"" >&2
done
return 1
fi
PKG="$(best_version $1)"
VER="$(ver_cut 1-2 "${PKG/*db-/}")"
if [ -d "${ESYSROOT}"/usr/include/db$(db_ver_to_slot "$VER") ]; then
#einfo "Found db version ${VER}" >&2
echo -n "$VER"
return 0
else
return 1
fi
}
# Get the include dir for berkeley db.
# This function has two modes. Without any arguments it will give the best
# version available. With arguments that form the versions of db packages
# to test for, it will aim to find the library corresponding to it.
db_includedir() {
if [ $# -eq 0 ]; then
VER="$(db_findver sys-libs/db)" || return 1
VER="$(db_ver_to_slot "$VER")"
echo "include version ${VER}" >&2
if [ -d "${ESYSROOT}/usr/include/db${VER}" ]; then
echo -n "${ESYSROOT}/usr/include/db${VER}"
return 0
else
eerror "sys-libs/db package requested, but headers not found" >&2
return 1
fi
else
#arguments given
for x in $@
do
if VER=$(db_findver "=sys-libs/db-${x}*") &&
[ -d "${ESYSROOT}/usr/include/db$(db_ver_to_slot $VER)" ]; then
echo -n "${ESYSROOT}/usr/include/db$(db_ver_to_slot $VER)"
return 0
fi
done
eerror "No suitable db version found"
return 1
fi
}
# Get the library name for berkeley db. Something like "db-4.2" will be the
# outcome. This function has two modes. Without any arguments it will give
# the best version available. With arguments that form the versions of db
# packages to test for, it will aim to find the library corresponding to it.
db_libname() {
if [ $# -eq 0 ]; then
VER="$(db_findver sys-libs/db)" || return 1
if [ -e "${ESYSROOT}/usr/$(get_libdir)/libdb-${VER}$(get_libname)" ]; then
echo -n "db-${VER}"
return 0
else
eerror "sys-libs/db package requested, but library not found" >&2
return 1
fi
else
#arguments given
for x in $@
do
if VER=$(db_findver "=sys-libs/db-${x}*"); then
if [ -e "${ESYSROOT}/usr/$(get_libdir)/libdb-${VER}$(get_libname)" ]; then
echo -n "db-${VER}"
return 0
fi
fi
done
eerror "No suitable db version found" >&2
return 1
fi
}
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