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Diffstat (limited to 'app-eselect/eselect-lua/files/lua.eselect-4')
-rw-r--r-- | app-eselect/eselect-lua/files/lua.eselect-4 | 133 |
1 files changed, 133 insertions, 0 deletions
diff --git a/app-eselect/eselect-lua/files/lua.eselect-4 b/app-eselect/eselect-lua/files/lua.eselect-4 new file mode 100644 index 000000000000..86c19460a15f --- /dev/null +++ b/app-eselect/eselect-lua/files/lua.eselect-4 @@ -0,0 +1,133 @@ +# -*-eselect-*- vim: ft=eselect +# Copyright 2014-2020 Gentoo Authors +# Distributed under the terms of the GNU General Public License v2 + +inherit config multilib + +DESCRIPTION="Manage lua symlinks" +MAINTAINER="mva@gentoo.org" + +HEADER_FILES="lauxlib.h luaconf.h lua.h lua.hpp lualib.h" + +remove_symlinks() { + rm -f "${EROOT}"/usr/bin/{lua,luac} &>/dev/null + rm -f "${EROOT}"/usr/share/man/man1/lua{,c}.1{,.*} &>/dev/null + # Possible leftovers from earlier versions + 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 +} + +_dup() { + dirname ${1}/. +} + +set_symlinks() { + local ver=${1#lua} + local bin_prefix="${EROOT}/usr/bin" + ln -s lua${ver} $(_dup "${bin_prefix}"/lua) + if [[ -f "${bin_prefix}"/luac${ver} ]]; then + ln -s luac${ver} $(_dup "${bin_prefix}"/luac) + fi + for manpage in "${EROOT}"/usr/share/man/man1/lua{,c}${ver}.1.* ; do + test -f ${manpage} && + ln -s $(basename "${manpage}") $(_dup "${manpage//${ver}}") + 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+=' '/usr/${dir} + done + echo ${libdirs:-/usr/lib} +} + +find_targets() { + local dirs + local prefix="${EROOT}/usr/bin/" + for f in ${prefix}lua{5,jit-2}.* ; do + [[ -f "${f}" ]] && dirs="${dirs} ${f##$prefix}" + done + echo $dirs +} + +resolve_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/\([\w.-]*\):\1:p" +} + +## Actual actions + +## set action + +describe_set() { + echo "Sets the current version of lua" +} + +describe_set_parameters() { + echo '[--if-unset] <target>' +} + +describe_set_options() { + echo '--if-unset: Do not replace currently selected implementation' + echo 'target: Target name or number (from "list" action)' +} + +do_set() { + if [ "${1}" == "--if-unset" ]; then + if [[ -n "$(get_active_version)" ]]; then + return + fi + shift + fi + + local target=$(resolve_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 +} |