*: Use tabs for indentation where appropriate

I am a big supporter of the approach to indent with tabs and align with
spaces. (Read [here][1] f.e.) Thus at some places a simple `s/ {4}/\t/g`
(replace 4 with whatever fits) is not enough and a bit more thought is
needed. Because of that there are still places where I plan to
substitute the whitespace in the future.

This patch contains exclusively whitespace changes. Check for yourself
with `git diff --ignore-all-space`.

[1]: https://dmitryfrank.com/articles/indent_with_tabs_align_with_spaces

.config/polybar/scripts/bluetooth.sh

@@ -2,89 +2,89 @@
 # See https://github.com/polybar/polybar-scripts/pull/237
 
 bluetooth_print() {
-    bluetoothctl | while read -r; do
-        if [[ "$(systemctl is-active "bluetooth.service")" = "active" ]]; then
+	bluetoothctl | while read -r; do
+		if [[ "$(systemctl is-active "bluetooth.service")" = "active" ]]; then
 
-            devices_paired=$(
-                echo paired-devices \
-                | bluetoothctl \
-                | sed -n '/paired-devices/,$p' \
-                | grep Device \
-                | cut -d ' ' -f 2
-            )
-            counter=0
+			devices_paired=$(
+				echo paired-devices \
+				| bluetoothctl \
+				| sed -n '/paired-devices/,$p' \
+				| grep Device \
+				| cut -d ' ' -f 2
+			)
+			counter=0
 
-            echo "$devices_paired" | while read -r line; do
-                device_info=$(echo "info $line" | bluetoothctl)
+			echo "$devices_paired" | while read -r line; do
+				device_info=$(echo "info $line" | bluetoothctl)
 
-                if echo "$device_info" | grep -q "Connected: yes"; then
-                    device_alias=$(
-                        echo "$device_info" \
-                        | grep "Alias" \
-                        | cut -d ' ' -f 2-
-                    )
+				if echo "$device_info" | grep -q "Connected: yes"; then
+					device_alias=$(
+						echo "$device_info" \
+						| grep "Alias" \
+						| cut -d ' ' -f 2-
+					)
 
-                    if [[ $counter -gt 0 ]]; then
-                        printf ", %s" "$device_alias"
-                    else
-                        printf ": %s" "$device_alias"
-                    fi
+					if [[ $counter -gt 0 ]]; then
+						printf ", %s" "$device_alias"
+					else
+						printf ": %s" "$device_alias"
+					fi
 
-                    counter=$((counter + 1))
-                fi
-            done
+					counter=$((counter + 1))
+				fi
+			done
 
-            if echo show | bluetoothctl | grep -q "Powered: no"; then
+			if echo show | bluetoothctl | grep -q "Powered: no"; then
 				printf ''
 			fi
-            printf '\n'
-        else
-            echo ""
-        fi
-    done
+			printf '\n'
+		else
+			echo ""
+		fi
+	done
 }
 
 bluetooth_toggle() {
-    if echo show | bluetoothctl | grep -q "Powered: no"; then
-        echo "power on" | bluetoothctl >> /dev/null
-        sleep 1
+	if echo show | bluetoothctl | grep -q "Powered: no"; then
+		echo "power on" | bluetoothctl >> /dev/null
+		sleep 1
 
-        devices_paired=$(
-            echo paired-devices
-            | bluetoothctl \
-            | sed -n '/paired-devices/,$p' \
-            | grep Device \
-            | cut -d ' ' -f 2
-        )
-        echo "$devices_paired" | while read -r line; do
-            echo "connect $line" | bluetoothctl >> /dev/null
-        done
-    else
-        devices_paired=$(
-            echo paired-devices \
-            | bluetoothctl \
-            | sed -n '/paired-devices/,$p' \
-            | grep Device \
-            | cut -d ' ' -f 2
-        )
-        echo "$devices_paired" | while read -r line; do
-            device_info=$(echo "info $line" | bluetoothctl)
+		devices_paired=$(
+			echo paired-devices
+			| bluetoothctl \
+			| sed -n '/paired-devices/,$p' \
+			| grep Device \
+			| cut -d ' ' -f 2
+		)
+		echo "$devices_paired" | while read -r line; do
+			echo "connect $line" | bluetoothctl >> /dev/null
+		done
+	else
+		devices_paired=$(
+			echo paired-devices \
+			| bluetoothctl \
+			| sed -n '/paired-devices/,$p' \
+			| grep Device \
+			| cut -d ' ' -f 2
+		)
+		echo "$devices_paired" | while read -r line; do
+			device_info=$(echo "info $line" | bluetoothctl)
 
-            if echo "$device_info" | grep -q "Connected: yes"; then
-                echo "disconnect $line" | bluetoothctl >> /dev/null
-            fi
-        done
+			if echo "$device_info" | grep -q "Connected: yes"; then
+				echo "disconnect $line" | bluetoothctl >> /dev/null
+			fi
+		done
 
-        echo "power off" | bluetoothctl >> /dev/null
-    fi
+		echo "power off" | bluetoothctl >> /dev/null
+	fi
 }
 
 case "$1" in
-    --toggle)
-        bluetooth_toggle
-        ;;
-    *)
-        bluetooth_print
-        ;;
+	--toggle)
+		bluetooth_toggle
+		;;
+	*)
+		bluetooth_print
+		;;
 esac
 

.config/polybar/scripts/vpn.sh

@@ -2,8 +2,8 @@
 
 connection="$(nmcli con show --active | awk '$3 ~ /^(vpn|tun)$/ { print $1 }')"
 if [ -n "$connection" ]; then
-    echo "VPN: $connection"
-    exit 0
+	echo "VPN: $connection"
+	exit 0
 fi
 
 # [o] is a hack to not grep the grep-command. See: