sb-disk: cleanup, use meters

.local/libexec/statusbar/sb-disk

@@ -1,11 +1,12 @@
 #!/bin/sh
 . "colors"
 
+types=${SB_DISK_FS:-ext2,ext3,ext4,xfs,btrfs,vfat}
+
 IFS='
 '
-
-types=${SB_DISK_FS:-ext2,ext3,ext4,xfs,btrfs,vfat}
 first=true
+
 for mnt in $(findmnt -Py -t "$types"); do
     eval "$mnt"
     case "$TARGET" in
@@ -15,8 +16,22 @@ for mnt in $(findmnt -Py -t "$types"); do
         /boot*) icon="󰐥" ;;
         *) icon="" ;;
     esac
+
     $first || printf " "
-    printf "%b" "${icon} $(df -h "$TARGET" | awk ' /[0-9]/ {print $3 "/" $2}')"
+
+    percent=$(df "$TARGET" | awk 'NR != 1 { gsub(/%/, "", $5); print $5 }')
+    case "$(printf %d $((percent / 10)))" in
+        0 | 1) color=$fgwhite bar=▁ ;;
+        2) color=$fgwhite bar=▂ ;;
+        3 | 4) color=$fgwhite bar=▃ ;;
+        5) color=$fgwhite bar=▄ ;;
+        6 | 7) color=$fgwhite bar=▅ ;;
+        8) color=$fgorange bar=▆ ;;
+        9 | 10) color=$fgred bar=▇ ;;
+        *) color=$fgblack bar= ;;
+    esac
+
+    printf "%b <span %b %b>%b</span>" "${icon}" "${color}" "${bggray}" "${bar}"
+
     first=false
 done
-printf "\n"