os/arch panel-notify: refactor

os/arch/.config/panel/panel-notify

@@ -1,36 +1,29 @@
 #!/usr/bin/env bash
 
-CWD=$(cd $(dirname $0) && pwd -P)
-
-if [ -t 0 ]
-then
-    if [ "$#" -eq 0 ]
-    then
+CWD=$(dirname $0)
+if [[ -t 0 ]]; then
+    if (( $# == 0 )); then
         >&2 echo "Usage: panel_update.sh [LEMON_TO_UPDATE]"
         exit 1
     fi
 
-    case "$1" in
+    case $1 in
         :*) LEMON="$CWD/lemons/${1#?}"
-            if [ ! -f "$LEMON" ]
-            then
+            if [[ ! -f $LEMON ]]; then
                 >&2 echo "Couldn't find that lemon ($1)"
                 exit 2
             fi
 
-            . $CWD/panel-config
-            pkill -f "bash \./lemons/${1#?}"
-            pushd "$CWD" >/dev/null
-            $LEMON > "$PANEL_FIFO" &
-            popd >/dev/null
+            . "$CWD/panel-config"
+            pkill -f "[bd]ash .+/lemons/${1#?}"
+            "$LEMON" > "$PANEL_FIFO" &
             ;;
         *)  echo "$@" | $0
             ;;
     esac
 else
     . $CWD/panel-config
-    while read -r line
-    do
+    while read -r line; do
         echo "$line" > "$PANEL_FIFO" &
     done
 fi