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148 lines
3.7 KiB
148 lines
3.7 KiB
13 years ago
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# -*-eselect-*- vim: ft=eselect
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9 years ago
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# Copyright 1999-2015 Gentoo Foundation
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13 years ago
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# Distributed under the terms of the GNU General Public License v2
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DESCRIPTION="Manage /usr/bin/pdftex implementations"
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MAINTAINER="tex@gentoo.org"
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9 years ago
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SVN_DATE='$Date: 2015/03/31 16:53:36 $'
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13 years ago
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VERSION=$(svn_date_to_version "${SVN_DATE}" )
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# find a list of pdftex symlink targets, best first
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find_targets() {
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local f
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for f in "${ROOT}"/usr/bin/pdftex-*; do
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if [[ -f ${f} ]] ; then
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echo "${f##*/pdftex-}"
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fi
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done | sort
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}
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# find version number of currently symlinked version
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identify_target() {
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local f
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f="$(canonicalise "${ROOT}"/usr/bin/pdftex)"
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echo "${f##*/pdftex-}"
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}
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# try to remove the pdftex symlink
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remove_symlinks() {
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rm -f "${ROOT}"/usr/bin/pdftex &>/dev/null
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}
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# set the pdftex symlink
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set_symlinks() {
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local target="${1}" targets
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if is_number "${target}" && [[ ${target} -ge 1 ]] ; then
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targets=( $(find_targets ) )
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target=${targets[$(( ${target} - 1 ))]}
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fi
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if [[ -f "${ROOT}/usr/bin/pdftex-${target}" ]] ; then
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remove_symlinks
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ln -s "pdftex-${target}" "${ROOT}/usr/bin/pdftex" || \
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die "Could not set ${target} /usr/bin/pdftex symlink"
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echo "Updating TeX formats"
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"${ROOT}"/usr/bin/fmtutil-sys --all &>/dev/null || write_warning_msg "Could not update TeX formats for some reason, pdftex may not work properly."
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else
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die -q "Target \"${target}\" doesn't appear to be valid!"
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fi
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}
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### show action ###
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describe_show() {
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echo "Show the current pdftex version"
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}
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do_show() {
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[[ -z "${@}" ]] || die -q "Too many parameters"
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write_list_start "Current pdftex verson:"
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if [[ -L "${ROOT}/usr/bin/pdftex" ]] ; then
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write_kv_list_entry "$(identify_target)" ""
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elif [[ -e "${ROOT}/usr/bin/pdftex" ]] ; then
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write_kv_list_entry "(not a symlink)" ""
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else
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write_kv_list_entry "(unset)" ""
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fi
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}
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### list action ###
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describe_list() {
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echo "List available pdftex versions"
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}
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do_list() {
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[[ -z "${@}" ]] || die -q "Too many parameters"
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local i targets current
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targets=( $(find_targets ) )
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current=$(identify_target)
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for (( i = 0; i < ${#targets[@]}; i++ )); do
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[[ ${targets[i]} = ${current} ]] \
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&& targets[i]=$(highlight_marker "${targets[i]}")
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done
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write_list_start "Available pdftex versions:"
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write_numbered_list -m "(none found)" "${targets[@]}"
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}
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### set action ###
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describe_set() {
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echo "Set a new pdftex version"
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}
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describe_set_options() {
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echo "target : Target version number or index from 'list' action"
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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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do_set() {
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if [[ -z "${1}" ]] ; then
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die -q "You didn't give me a version number"
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elif [[ -n "${2}" ]] ; then
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die -q "Too many parameters"
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elif [[ -L "${ROOT}/usr/bin/pdftex" ]] ; then
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if ! remove_symlinks ; then
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die -q "Can't remove existing version symlink"
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elif ! set_symlinks "${1}" ; then
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die -q "Can't set new version"
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fi
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elif [[ -e "${ROOT}/usr/bin/pdftex" ]] ; then
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die -q "${ROOT}/usr/bin/pdftex seems to be from an old ebuild, please remove manually"
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else
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set_symlinks "${1}" || die -q "Can't set new version"
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fi
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}
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### update action ###
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describe_update() {
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echo "Automatically update the pdftex version number"
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}
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describe_update_options() {
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echo "--if-unset : Do not override currently selected version"
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}
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do_update() {
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[[ -z "${1}" ]] || ( [[ -z "${2}" ]] && [[ "${1}" == "--if-unset" ]] ) || \
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die -q "Usage error"
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if [[ -L "${ROOT}/usr/bin/pdftex" ]] ; then
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[[ ${1} == "--if-unset" ]] && return
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remove_symlinks || die -q "Can't remove existing symlink"
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fi
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if [[ -e "${ROOT}/usr/bin/pdftex" ]] ; then
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die -q "${ROOT}/usr/bin/pdftex seems to be from an old ebuild, please remove manually"
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elif ! [[ -z $(find_targets ) ]] ; then
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set_symlinks 1 || die -q "Can't set a new version"
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fi
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}
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