polybar: generate mountpoints automatically

bin/polybar

@@ -7,6 +7,9 @@ MONITORS=$(xrandr --current --listactivemonitors | sed -nE 's/ *([0-9]+): [+*]*(
 PRIMARY=$(xrandr --current --listactivemonitors | sed -nE 's/ *([0-9]+): [+]?[*]([^ ]*).*/\2/p')
 PRIMARY=${PRIMARY:-${MONITORS%% *}}
 
+awk 'BEGIN { i=0 } ($4 == "/" && $3 !~ /^0:/) {print "mount-"i" = "$5; i++}' /proc/self/mountinfo \
+    > $XDG_RUNTIME_DIR/i3/polybar-filesystems.conf
+
 case $(echo $MONITORS | wc -w) in
     1)
         MONITOR=$PRIMARY polybar --reload alone &

dotfiles/polybar.conf

@@ -69,20 +69,15 @@ label-urgent-padding = 1
 # This needs 3.6+
 [module/disk]
 type = internal/fs
-mount-0 = /
-mount-1 = /home
-mount-2 = /var
-mount-3 = /tmp
-mount-4 = /var/lib/systems
-mount-5 = /boot
-warn-percentage = 94
+warn-percentage = 80
 fixed-values = true
 interval = 10
 format-unmounted =
 format-mounted =
 format-warn = <label-warn>
 format-warn-foreground = ${colors.warning}
-label-warn =  %mountpoint%: %percentage_used%%
+label-warn = 🖴 %mountpoint%: %percentage_used%%
+include-file = $XDG_RUNTIME_DIR/i3/polybar-filesystems.conf
 
 [module/brightness]
 type = internal/backlight