installed() {
type "$1" >/dev/null 2>&1
}
+error() {
+ if installed xmessage; then
+ xmessage "$@" &
+ else
+ # Log message to a file which is displayed by my Zsh setup on startup.
+ echo "$@" >> "$HOME/.xinitrc.errors"
+ fi
+}
+# Save PID of the most recently started background process. Used to terminate
+# them when logging out to prevent unused background processes. On some
+# systems this is only necessary for some programs (like ssh-agent), haven't
+# yet figured out why.
+save_background_pid() {
+ background_pids="$background_pids $!"
+}
+background_pids=
-# Start ssh-agent if we have private keys, thanks to
+# Options, can be modified in ~/.xinitrc.local. To disable a boolean option
+# set it to an empty value.
+#
+# Default to use a background image.
+set_background=yes
+# Default to display a warning if `xautolock` is not available.
+screen_lock_force=yes
+# Lock screen after x minutes of inactivity, requires `xautolock` to be
+# installed.
+screen_lock_time=3
+# Locker program to lock the screen, used below with `xautolock`.
+screen_locker=xtrlock
+
+# Load settings for the local system.
+if test -f "$HOME/.xinitrc.local"; then
+ . "$HOME/.xinitrc.local"
+fi
+
+
+# Start ssh-agent if no agent is running and we have private keys, thanks to
# http://code.haskell.org/XMonadContrib/scripts/xinitrc (read on 2011-06-19).
-if test -x /usr/bin/ssh-agent && test -f "$HOME/.ssh/id_rsa"; then
+if test -z "$SSH_AGENT_PID" \
+ && test -x /usr/bin/ssh-agent \
+ && test -f "$HOME/.ssh/id_rsa"; then
# -s to force bourne shell output. This file is a bourne shell script even
# if the environment might suggest otherwise.
eval `/usr/bin/ssh-agent -s` >/dev/null
# Use my X11 key bindings.
xmodmap "$HOME/.xmodmaprc"
-# Default to use a background image. Can be disabled in .xinitrc.local.
-set_background=yes
-
-# Load settings for the local system.
-if test -f "$HOME/.xinitrc.local"; then
- . "$HOME/.xinitrc.local"
-fi
-
# Change the background if available.
if test -f "$HOME/.background" && test -n "$set_background"; then
if installed hsetroot; then
# Display timed reminders and recheck the file for changes every minute (-z1).
if installed remind && test -f "$HOME/.reminders"; then
remind -z1 -k'.shell/bin/notify.py %s &' "$HOME/.reminders" &
+ save_background_pid
fi
# Set color temperature of display according to time of day.
redshift -l 49.9:10.9 -t 5500:4500 >/dev/null &
fi
+# Automatically lock the screen after x minutes of inactivity if `xautolock`
+# is available. Warn if locker wasn't found.
+if installed xautolock; then
+ if installed "$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
+
# XMonad doesn't start a terminal emulator on its own, start one when I login.
(urxvt || rxvt || xterm) &
# Start window manager.
xmonad
+
+# 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.
+kill $background_pids