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# -*-eselect-*- vim: ft=eselect
# Copyright 2014-2015 Gentoo Foundation
# Distributed under the terms of the GNU General Public License v2
inherit config multilib
DESCRIPTION="Manage lua symlinks"
MAINTAINER="mabi@gentoo.org"
HEADER_FILES="lauxlib.h luaconf.h lua.h lua.hpp lualib.h"
remove_symlinks() {
rm -f "${EROOT}"/usr/bin/{lua,luac} &>/dev/null
for dir in $(get_libdirs) ; do
rm -f "${EROOT}"${dir}/liblua.so &>/dev/null && \
rm -f "${EROOT}"${dir}/pkgconfig/lua.pc &>/dev/null
done
for f in $HEADER_FILES ; do
rm -f "${EROOT}"/usr/include/$f
done
rm -f "${EROOT}"/usr/share/man/man1/{lua,luac}.1{,.gz,.bz2,.lzma} &>/dev/null
}
set_symlinks() {
local ver=$1
ln -s "${EROOT}"/usr/bin/lua{$ver,}
ln -s "${EROOT}"/usr/bin/luac{$ver,}
for dir in $(get_libdirs) ; do
ln -s "${dir}"/liblua{$ver,}.so
ln -s "${dir}"/pkgconfig/lua{$ver,}.pc
done
for orig in "${EROOT}"/usr/share/man/man1/lua*$ver.1* ; do
ln -s "${orig}" "${orig//$ver}"
done
for f in $HEADER_FILES ; do
ln -s "${EROOT}"/usr/include/lua$ver/$f "${EROOT}"/usr/include
done
}
get_libdirs() {
local dir libdirs
for dir in $(list_libdirs); do
[[ -L ${EROOT}/usr/${dir} ]] && continue
ls "${EROOT}"/usr/${dir}/liblua*.* > /dev/null 2>&1 || continue
libdirs+=' '${EPREFIX}/usr/${dir}
done
echo ${libdirs:-${EPREFIX}/usr/lib}
}
find_targets() {
local dirs
local prefix="${EROOT}/usr/bin/lua"
for f in ${prefix}5* ; do
dirs="${dirs} ${f##$prefix}"
done
echo $dirs
}
resolv_target() {
local targets=( $(find_targets) )
if is_number $1; then
[[ $1 -le ${#targets[@]} && $1 -gt 0 ]] && echo "${targets[ $(( $1 - 1 )) ]}"
elif has $1 ${targets[@]}; then
echo $1
fi
}
get_active_version() {
readlink -e "${EROOT}"/usr/bin/lua | sed -ne "s:.*/usr/bin/lua\([\d.-]*\):\1:p"
}
## Actual actions
## set action
describe_set() {
echo "Sets the current version of lua"
}
describe_set_parameters() {
echo '<target>'
}
describe_set_options() {
echo 'target: Target name or number (from "list" action)'
}
do_set() {
local target=$(resolv_target $1)
if [[ -z "${target}" ]]; then
die -q "You need to specify a version"
fi
remove_symlinks
set_symlinks $target
}
## List action
describe_list() {
echo 'Lists available lua versions'
}
do_list() {
local targets
local a
targets=( $(find_targets) )
a=$(get_active_version)
for (( i = 0; i < ${#targets[@]}; i++ )) ; do
[[ $a == ${targets[i]} ]] && targets[i]=$(highlight_marker "${targets[i]}")
done
write_numbered_list -m '(none found)' "${targets[@]}"
}
## Show action
describe_show() {
echo 'Show the active lua version'
}
do_show() {
get_active_version
}
## update action
describe_update() {
echo 'Automatically update the lua version'
}
describe_update_options() {
echo 'ifunset : Do not override existing implementation'
}
do_update() {
[[ -n ${1} && ! ( ${1} == ifunset || ${1} == '--if-unset' ) ]] && \
die -q 'Usage error'
[[ ( ${1} == ifunset || ${1} == '--if-unset' ) && -n $(get_active_version) ]] && \
return
remove_symlinks
local targets=( $(find_targets) )
if [[ -n ${#targets[@]} ]] ; then
local target=${targets[${#targets[@]} - 1]}
set_symlinks $target || echo 'Nothing to update'
fi
}
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