+# Automatically lock the screen after x minutes of inactivity if
+# `xscreensaver` or `xautolock` is available. Warn if no locker was found.
+if installed xscreensaver; then
+ xscreensaver &
+elif installed xautolock; then
+ if installed "$screen_locker"; then
+ xautolock -secure -time "$screen_lock_time" -locker "$screen_locker" &
+ else
+ error "Locker '$screen_locker' not installed. Auto lock won't work!"
+ fi
+elif test -n "$screen_lock_force"; then
+ error "'xautolock' not found. Auto lock won't work!"
+fi
+
+# Use compton to get transparent windows. See ~/.Xresources for configuration
+# of urxvt.
+if installed compton; then
+ compton &
+# xcompmgr as fallback.
+elif installed xcompmgr; then
+ xcompmgr &
+fi
+
+
+# My window manager doesn't start a terminal emulator on its own, start one
+# when I login.
+(urxvt || rxvt || xterm) &
+
+# Start window manager.
+failed=
+if installed herbstluftwm; then
+ herbstluftwm --locked >"$HOME/.config/herbstluftwm/log" 2>&1 || failed=1
+elif installed xmonad; then
+ xmonad || failed=1
+elif installed stumpwm; then
+ stumpwm || failed=1
+else
+ failed='no window manager found'
+fi
+# Fallback in case my window manager failed to start. Otherwise X terminates
+# the session immediately (because xinitrc finishes).
+if test -n "$failed"; then
+ if test x"$failed" = x1; then
+ failed='failed to start window manager'
+ fi
+ error "$failed (spawning fallback terminal)"
+ urxvt || rxvt || xterm
+fi
+
+
+# Cleanup.
+#
+# Kill ssh-agent to prevent unused background processes.
+if test -x /usr/bin/ssh-agent; then
+ /usr/bin/ssh-agent -k >/dev/null
+ # No `eval` necessary, we terminate anyway.
+fi
+# Kill remaining background processes.
+if test -n "$background_pids"; then
+ kill $background_pids
+fi