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# Common shell routine used by im-config
# (C) 2026 Osamu Aoki <osamu@debian.org>, GPL-2+
# vim: set sts=4 sw=4 expandtab:
#
#############################################################
# Common logging functions `
#############################################################
IM_CONFIG_DEFAULT=/etc/default/im-config
# logger_info -- nice to have systemd installed
# gnu-which doesn't support "which -s ..."
if [ -e /usr/bin/systemd-cat ] ; then
LOGGER='/usr/bin/systemd-cat -p 6 -t "im-config" echo'
elif [ -e /usr/bin/logger ] ; then
LOGGER='/usr/bin/logger -p local0.info -t "im-config" echo'
else
LOGGER='>&2 echo'
fi
logger_info() {
eval "$LOGGER \"$1\""
}
logger_debug() {
if [ -n "$IM_CONFIG_VERBOSE" ]; then
eval "$LOGGER \"$1\""
fi
}
# Reduce risk of random script executions
set_val () {
MATCH="^$1=[\"']?[-a-zA-Z:_,][-a-zA-Z:_,]*.[\"']?\$"
eval "$(grep -e "$MATCH" $IM_CONFIG_DEFAULT | head -1)"
logger_debug "Set $(grep -e "$MATCH" $IM_CONFIG_DEFAULT | head -1)"
}
# parse /etc/default/im-config
logger_debug "Parse $IM_CONFIG_DEFAULT"
if [ -r $IM_CONFIG_DEFAULT ]; then
set_val IM_CONFIG_DEFAULT_MODE
set_val CJKV_DEFAULT_DESKTOP
set_val CJKV_LOCALES
set_val IM_CONFIG_PREFERRED_RULE
set_val DESKTOP_SETUP_IBUS
set_val IM_CONFIG_SETMODE
set_val IM_CONFIG_VERBOSE
fi
# provide fall back values for undefined cases
if [ -z "$IM_CONFIG_DEFAULT_MODE" ]; then
IM_CONFIG_DEFAULT_MODE="auto"
fi
if [ -z "$CJKV_DEFAULT_DESKTOP" ]; then
CJKV_DEFAULT_DESKTOP="*"
fi
if [ -z "$CJKV_LOCALE" ]; then
CJKV_LOCALES="zh_TW:zh_HK:zh_SG:zh_CN:ja_JP:ko_KR:vi_VN"
fi
if [ -z "$IM_CONFIG_PREFERRED_RULE" ]; then
IM_CONFIG_PREFERRED_RULE="zh_CN,fcitx5:zh_TW,fcitx5:zh_HK,fcitx5:zh_SG,fcitx5"
fi
if [ -z "$DESKTOP_SETUP_IBUS" ]; then
DESKTOP_SETUP_IBUS="GNOME"
fi
if [ -z "$IM_CONFIG_SETMODE" ]; then
IM_CONFIG_SETMODE=""
fi
if [ -z "$IM_CONFIG_VERBOSE" ]; then
IM_CONFIG_VERBOSE="false"
fi
# 2026-0317
# Primary variable to determine DE
# XDG_CURRENT_DESKTOP -- defined in the Desktop Entry Specification since its version 1.2
# Set by set by DesktopNames in some code, multi value capable
# See https://specifications.freedesktop.org/menu/latest/onlyshowin-registry.html
# budgie-session GNOME
# cinnamon-session IM_CONFIG_CURRENT_DESKTOP <- DESKTOP_SESSION='cinnamon' (Later: X-Cinamon)
# gnome-flashback GNOME-Flashback:GNOME
# gnome-session GNOME
# lxqt-session LXQt
# lxsession LXDE (this code mentions Lubuntu migration, and has example with qt/platform=lxqt)
# mate-session-manager MATE
# plasma-workspace KDE
# xfce4-session XFCE
#
# XDG_SESSION_DESKTOP -- non-standard
# DESKTOP_SESSION -- deprecated, backward-compatibility
#
logger_debug "@ IM_CONFIG_ENTRY='$IM_CONFIG_ENTRY' XDG_SESSION_TYPE ='$XDG_SESSION_TYPE' UID=$(id -u) PID=$$ PPID=$PPID"
logger_debug " GTK_IM_MODULE='$GTK_IM_MODULE' QT_IM_MODULE='$QT_IM_MODULE' CLUTTER_IM_MODULE='$CLUTTER_IM_MODULE' SDL_IM_MODULE='$SDL_IM_MODULE' XMODIFIERS='$XMODIFIERS'"
if [ -n "$XDG_CURRENT_DESKTOP" ]; then
IM_CONFIG_CURRENT_DESKTOP="$XDG_CURRENT_DESKTOP"
logger_debug " Set IM_CONFIG_CURRENT_DESKTOP <- XDG_CURRENT_DESKTOP='$XDG_CURRENT_DESKTOP'"
elif [ "$DESKTOP_SESSION" = 'lxqt' -o "$DESKTOP_SESSION" = 'Lubuntu' ]; then
# hack since LXQt sets XDG_CURRENT_DESKTOP late - https://github.com/lxqt/lxqt/issues/1830
# Upstream claims that the issue was fixed in lxqt-session 0.17.0. However, Lubuntu 21.10
# uses 0.17.1 but it still does not work. So let's keep this hack for now.
IM_CONFIG_CURRENT_DESKTOP="LXQt"
logger_debug " Set IM_CONFIG_CURRENT_DESKTOP <- DESKTOP_SESSION='$DESKTOP_SESSION' (special case for Ubuntu lxqt Lubuntu)"
elif [ -n "$DESKTOP_SESSION" ]; then
# Since LXDE also sets $XDG_CURRENT_DESKTOP='', let's make generic fall back
IM_CONFIG_CURRENT_DESKTOP="$DESKTOP_SESSION"
logger_debug " Set IM_CONFIG_CURRENT_DESKTOP <- DESKTOP_SESSION='$DESKTOP_SESSION' (generic backword compatibility)"
else
IM_CONFIG_CURRENT_DESKTOP="UNDEFINED"
logger_debug " Set IM_CONFIG_CURRENT_DESKTOP <- 'UNDEFINED'"
fi
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