e0d5dbb85b
* Add a "icon_themes" task to cache GTK+ icon theme directories. * Change the way that install-info(1) is invoked. * Clarify the output from the "groups" and "users" tasks. * Bug fixes.
221 lines
6.1 KiB
Text
221 lines
6.1 KiB
Text
# Copyright (c) 2017 The NetBSD Foundation, Inc.
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# All rights reserved.
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#
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# This code is derived from software contributed to The NetBSD Foundation
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# by Johnny C. Lam.
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#
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# Redistribution and use in source and binary forms, with or without
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# modification, are permitted provided that the following conditions
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# are met:
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# 1. Redistributions of source code must retain the above copyright
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# notice, this list of conditions and the following disclaimer.
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# 2. Redistributions in binary form must reproduce the above copyright
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# notice, this list of conditions and the following disclaimer in the
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# documentation and/or other materials provided with the distribution.
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#
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# THIS SOFTWARE IS PROVIDED BY THE NETBSD FOUNDATION, INC. AND CONTRIBUTORS
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# ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED
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# TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
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# PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE FOUNDATION OR CONTRIBUTORS
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# BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
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# CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
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# SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
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# INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
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# CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
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# ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
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# POSSIBILITY OF SUCH DAMAGE.
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#
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# NAME
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# icon_themes.subr -- icon theme cache management for packages
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#
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# SYNOPSIS
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# task_icon_themes [-s] add | remove <stage>
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#
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# DESCRIPTION
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# The task_icon_themes function supports two actions, "add" and
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# "remove", that will add or remove the GTK+ icon caches from the
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# theme directories.
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#
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# The available options are as follows:
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#
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# -s Silent; don't write to standard output.
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#
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# The task_icon_themes function reads standard input line by line
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# and looks for lines of the form:
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#
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# # ICON_THEME: <themedir>
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#
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# If the path to the theme directory is relative, then it is assumed
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# to be relative to ${PKG_PREFIX}/share/icons.
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#
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# RETURN VALUES
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# Returns 0 if the action is successful for all icon themes, and >0
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# if an error occurs.
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#
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# ENVIRONMENT
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# The following variables are used if they are set:
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#
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# GTK_UPDATE_ICON_CACHE
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# The name or path to the GTK+ command to update the icon
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# caches. This is the fall-through default command if
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# neither of the other two gtk-update-icon-cache(1)
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# commands exist on the system.
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#
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# GTK2_UPDATE_ICON_CACHE
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# The name or path to the GTK+-2.x command to update the
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# icon caches.
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#
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# GTK3_UPDATE_ICON_CACHE
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# The name or path to the GTK+-3.x command to update the
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# icon caches.
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#
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# PKGNAME
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# The name of the package.
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#
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# PKG_DESTDIR
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# A "destdir" prefix that is prepended to all filesystem
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# paths. The default value is the empty string.
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#
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# PKG_PREFIX
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# The installation prefix of the package. The default is
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# "/usr/pkg".
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#
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# RM The name or path to the rm(1) utility.
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#
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# TASK_MSG
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# String prepended to all normal message written to
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# standard output.
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#
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__task_icon_themes__="yes"
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task_load echo
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task_load which
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task_icon_themes()
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{
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: ${RM:=rm}
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: ${PKG_PREFIX:=/usr/pkg}
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: ${PKGNAME:=${0##*/}}
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: ${TASK_MSG:=""}
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local arg
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local echo="task_echo"
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local OPTIND=1
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while getopts ":s" arg "$@"; do
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case $arg in
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s) echo=":" ;;
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*) return 127 ;;
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esac
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done
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shift $(( ${OPTIND} - 1 ))
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[ $# -gt 0 ] || return 127
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local action="$1"; shift
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local stage="$1"
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case $action in
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add|remove)
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: "valid action" ;;
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*) return 0 ;;
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esac
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# Guard against ${PKG_PREFIX} == "/".
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local prefix
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case ${PKG_PREFIX}/ in
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//) prefix= ;;
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*) prefix=${PKG_PREFIX} ;;
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esac
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local result=0
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local hash tag themedir
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local theme cache update_cmd
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while read hash tag themedir; do
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# Filter for "# ICON_THEME:"
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case $hash/$tag in
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"#/ICON_THEME:")
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: "use this line" ;;
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*) continue ;;
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esac
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# Canonicalize paths.
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case $themedir in
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"") # skip lines without required args
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continue ;;
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[!/]*) themedir="$prefix/share/icons/$themedir" ;;
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esac
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themedir="${PKG_DESTDIR}$themedir"
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theme="$themedir/index.theme"
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cache="$themedir/icon-theme.cache"
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case "$action,$stage" in
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remove,postremove)
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: "avoid double removal of icon caches" ;;
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remove,*)
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if [ ! -f "$cache" ]; then
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$echo "${TASK_MSG}> icon cache already removed: $themedir"
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elif ${RM} -f "$cache"; then
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$echo "${TASK_MSG}> icon cache removed: $themedir"
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else
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$echo "${TASK_MSG}! icon cache not removed: $themedir"
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result=1
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fi ;;
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esac
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# Update the icon caches during "add" action, but also during
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# "remove" action at "postremove" stage if the theme directories
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# still exist.
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#
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case "$action,$stage" in
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add,*|remove,postremove)
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# Set the command used to update the icon caches.
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_task_icon_themes_cache_update_cmd
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if [ "$__task_icon_themes_update_cmd__" != "missing" ]; then
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update_cmd="$__task_icon_themes_update_cmd__"
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fi
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: ${update_cmd:=${GTK_UPDATE_ICON_CACHE:-true}}
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if [ ! -f "$theme" ]; then
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case $action in
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add) $echo "${TASK_MSG}! icon theme missing: $themedir"
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result=1 ;;
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remove) : "silently skip updating" ;;
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esac
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elif [ -z "$update_cmd" ]; then
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$echo "${TASK_MSG}! icon theme not cached - missing command: $themedir"
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result=1
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elif $update_cmd -f -q "$themedir"; then
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$echo "${TASK_MSG}> icon theme cached: $themedir"
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else
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$echo "${TASK_MSG}! icon theme not cached: $themedir"
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result=1
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fi ;;
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esac
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done
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return $result
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}
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_task_icon_themes_cache_update_cmd()
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{
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: ${GTK2_UPDATE_ICON_CACHE:=gtk2-update-icon-cache}
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: ${GTK3_UPDATE_ICON_CACHE:=gtk-update-icon-cache}
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# Cache gtk-update-icon-cache(1) location.
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if [ -z "$__task_icon_themes_update_cmd__" ]; then
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local cmd
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for cmd in \
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"${GTK3_UPDATE_ICON_CACHE}" \
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"${GTK2_UPDATE_ICON_CACHE}"
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do
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[ -n "$cmd" ] || continue
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__task_icon_themes_update_cmd__=$( task_which "$cmd" )
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[ -z "$__task_icon_themes_update_cmd__" ] || break
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done
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[ -n "$__task_icon_themes_update_cmd__" ] ||
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__task_icon_themes_update_cmd__="missing"
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fi
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}
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# Static variable for the path to the command that updates the icon cache.
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__task_icon_themes_update_cmd__=
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