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173 lines
4.1 KiB
173 lines
4.1 KiB
# -*-eselect-*- vim: ft=eselect
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# Copyright 2014-2020 Gentoo Authors
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# Distributed under the terms of the GNU General Public License v2
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inherit config multilib
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DESCRIPTION="Manage lua symlinks"
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MAINTAINER="mva@gentoo.org"
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HEADER_FILES="lauxlib.h luaconf.h lua.h lua.hpp lualib.h"
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remove_symlinks() {
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rm -f "${EROOT}"/usr/bin/{lua,luac} &>/dev/null
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for dir in $(get_libdirs) ; do
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rm -f "${EROOT}"${dir}/liblua.so &>/dev/null && \
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rm -f "${EROOT}"${dir}/pkgconfig/lua.pc &>/dev/null
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done
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for f in $HEADER_FILES ; do
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rm -f "${EROOT}"/usr/include/${f}
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done
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rm -f "${EROOT}"/usr/share/man/man1/{lua,luac}.1{,.gz,.bz2,.lzma} &>/dev/null
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}
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_dup() {
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dirname ${1}/.
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}
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set_symlinks() {
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local ver=$1
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ln -s lua${ver} $(_dup "${EROOT}"/usr/bin/lua)
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ln -s luac${ver} $(_dup "${EROOT}"/usr/bin/luac)
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for dir in $(get_libdirs) ; do
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if has 'jit*' ${ver}; then
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type -p lua${ver} &>/dev/null || die -q "It's something wrong with your lua${ver} installation: it's binary leads to broken symlink"
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local abi=$(lua${ver} -e 'print(_VERSION:match("%d.%d"))')
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local libname=libluajit-${abi}.so.${ver##jit-}
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test -f "${EROOT}/${dir}/${libname}" || die -q "Can't find libluajit for lua${ver} (lua abi: ${abi})"
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ln -s ${libname} $(_dup "${EROOT}/${dir}"/liblua.so)
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else
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ln -s liblua${ver}.so $(_dup "${EROOT}/${dir}"/liblua.so)
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fi
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ln -s lua${ver}.pc $(_dup "${EROOT}/${dir}"/pkgconfig/lua.pc)
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done
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for manpage in "${EROOT}"/usr/share/man/man1/lua*${ver}.1* ; do
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test -f ${manpage} &&
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ln -s $(basename "${manpage}") $(_dup "${manpage//${ver}}")
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done
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for header in $HEADER_FILES ; do
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local hdr;
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if has 'jit*' ${ver}; then
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type -p lua${ver} &>/dev/null || die -q "lua${ver} binary is missing (or leads to broken symlink)"
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local jit_v=$(lua${ver} -e 'print(jit.version:match("%d.%d"))')
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hdr=luajit-${jit_v}/${header};
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else
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hdr=lua${ver}/${header};
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fi
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test -f "${EROOT}/usr/include/${hdr}" || die -q "Missing header: ${header}"
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ln -s "${hdr}" $(_dup "${EROOT}"/usr/include/${header})
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done
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}
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get_libdirs() {
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local dir libdirs
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for dir in $(list_libdirs); do
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[[ -L ${EROOT}/usr/${dir} ]] && continue
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ls "${EROOT}"/usr/${dir}/liblua*.* > /dev/null 2>&1 || continue
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libdirs+=' '/usr/${dir}
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done
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echo ${libdirs:-/usr/lib}
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}
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find_targets() {
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local dirs
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local prefix="${EROOT}/usr/bin/lua"
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for f in ${prefix}{5,jit-2}.* ; do
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[[ -f "${f}" ]] && dirs="${dirs} ${f##$prefix}"
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done
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echo $dirs
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}
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resolv_target() {
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local targets=( $(find_targets) )
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if is_number $1; then
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[[ $1 -le ${#targets[@]} && $1 -gt 0 ]] && echo "${targets[ $(( $1 - 1 )) ]}"
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elif has $1 ${targets[@]}; then
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echo $1
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fi
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}
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get_active_version() {
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readlink -e "${EROOT}"/usr/bin/lua | sed -ne "s:.*/usr/bin/lua\([\w.-]*\):\1:p"
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}
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## Actual actions
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## set action
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describe_set() {
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echo "Sets the current version of lua"
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}
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describe_set_parameters() {
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echo '<target>'
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}
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describe_set_options() {
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echo 'target: Target name or number (from "list" action)'
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}
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do_set() {
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local target=$(resolv_target $1)
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if [[ -z "${target}" ]]; then
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die -q "You need to specify a version"
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fi
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remove_symlinks
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set_symlinks $target
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}
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## List action
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describe_list() {
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echo 'Lists available lua versions'
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}
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do_list() {
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local targets
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local a
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targets=( $(find_targets) )
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a=$(get_active_version)
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for (( i = 0; i < ${#targets[@]}; i++ )) ; do
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[[ $a == ${targets[i]} ]] && targets[i]=$(highlight_marker "${targets[i]}")
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done
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write_numbered_list -m '(none found)' "${targets[@]}"
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}
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## Show action
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describe_show() {
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echo 'Show the active lua version'
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}
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do_show() {
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get_active_version
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}
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## update action
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describe_update() {
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echo 'Automatically update the lua version'
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}
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describe_update_options() {
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echo 'ifunset : Do not override existing implementation'
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}
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do_update() {
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[[ -n ${1} && ! ( ${1} == ifunset || ${1} == '--if-unset' ) ]] && \
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die -q 'Usage error'
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[[ ( ${1} == ifunset || ${1} == '--if-unset' ) && -n $(get_active_version) ]] && \
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return
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remove_symlinks
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local targets=( $(find_targets) )
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if [[ -n ${#targets[@]} ]] ; then
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local target=${targets[${#targets[@]} - 1]}
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set_symlinks $target || echo 'Nothing to update'
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fi
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}
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