136 lines
2.9 KiB
Bash
136 lines
2.9 KiB
Bash
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#!/bin/sh
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# Copyright 2020 Oliver Smith
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# SPDX-License-Identifier: GPL-3.0-or-later
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setup_log() {
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logfile=${XDG_STATE_HOME:-~/.local/state}/tinydm.log
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mkdir -p "$(dirname "$logfile")"
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if [ -f "$logfile" ]; then
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# keep previous log file around
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mv "$logfile" "$logfile".old
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fi
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exec >"$logfile" 2>&1
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}
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source_profile() {
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for profile in /etc/profile "$HOME"/.profile; do
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if [ -f "$profile" ]; then
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# shellcheck disable=SC1090
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. "$profile"
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fi
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done
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}
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# $1: session type (i.e. 'wayland', or 'x11')
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source_session_profiles() {
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session_type="$1"
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if [ "$session_type" != "wayland" ] && [ "$session_type" != "x11" ]; then
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echo "Unknown session type: $session_type"
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exit 1
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fi
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for file in "/usr/share/tinydm/env-${session_type}.d/"*; do
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if ! [ -e "$file" ]; then
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continue
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fi
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echo "tinydm: sourcing file: $file"
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# shellcheck disable=SC1090
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. "$file"
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done
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# Source /etc dirs after /usr/share to override options properly
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for file in "/etc/tinydm.d/env-${session_type}.d/"*; do
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if ! [ -e "$file" ]; then
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continue
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fi
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echo "tinydm: sourcing file: $file"
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# shellcheck disable=SC1090
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. "$file"
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done
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}
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# $1: file
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# $2: key
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parse_xdg_desktop() {
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grep "^$2=" "$1" | cut -d "=" -f 2- | tr ';' ':' | sed 's/:$//'
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}
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# $1: Exec line from .desktop file
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run_session_wayland() {
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export XDG_SESSION_TYPE=wayland
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exec setpriv --ambient-caps '-all' "$@"
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}
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# $1: Exec line from .desktop file
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run_session_x() {
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export XDG_SESSION_TYPE=X11
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cmd_startx="startx $(command -v "$1")"
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shift
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for arg in "$@"; do
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cmd_startx="$cmd_startx $arg"
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done
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cmd_startx="$cmd_startx -- -nocursor -nolisten tcp vt1 -keeptty"
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# shellcheck disable=SC2086
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exec setpriv --ambient-caps '-all' $cmd_startx
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}
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run_session() {
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target="/var/lib/tinydm/default-session.desktop"
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if ! [ -e "$target" ]; then
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echo "ERROR: no session configured!"
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exit 1
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fi
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resolved="$(realpath "$target")"
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desktop="$(basename "$resolved" | sed 's/\.desktop$//')"
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export XDG_SESSION_DESKTOP="$desktop"
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cmd="$(parse_xdg_desktop "$resolved" "Exec")"
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desktop_names="$(parse_xdg_desktop "$resolved" "DesktopNames")"
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if [ -n "$desktop_names" ]; then
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export XDG_CURRENT_DESKTOP="$desktop_names"
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fi
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if [ -z "$DBUS_SESSION_BUS_ADDRESS" ] &&
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[ "$TINYDM_START_DBUS_SESSION" = "true" ] &&
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[ "$(command -v dbus-launch)" ]; then
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cmd="$(command -v dbus-launch) --exit-with-x11 $cmd"
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fi
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echo "--- tinydm ---"
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echo "Date: $(date)"
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echo "Session: $resolved"
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echo "Desktop: $desktop"
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echo "Exec: $cmd"
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echo "---"
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case "$resolved" in
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/usr/share/wayland-sessions*)
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source_session_profiles wayland
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# shellcheck disable=SC2086
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run_session_wayland $cmd
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;;
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/usr/share/xsessions*)
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source_session_profiles x11
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# shellcheck disable=SC2086
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run_session_x $cmd
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;;
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*)
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echo "ERROR: could not detect session type!"
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exit 1
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;;
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esac
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}
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setup_log
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source_profile
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run_session
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