bthandler/bt

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3.9 KiB
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Executable File

#!/bin/bash
#wait time to discover new devices in seconds
SCAN_PERIOD=5
BLACKLIST=${XDG_DATA_HOME:-$HOME/.local/share}/bt/blacklist
PAIRLIST=${XDG_DATA_HOME:-$HOME/.local/share}/bt/paired
actions="turn off\nturn on\npair\nunpair"
#Checks for necessary programs to be present. Very unlikely not to be present but let's just err on the safer side.
for prog in dmenu bluetoothctl awk cat; do
if ! hash "$prog" 2>/dev/null; then
printf 'bthandler: %s: command not found\n' "$prog" >&2
exit 127
fi
done
#Compile list of all Bluetooth IDS of paired devices (from bluetoothctl and from hardcoded list)
bluetoothctl paired-devices | awk '{print $2}' > /tmp/bt_IDS
cat "$PAIRLIST" | awk '{print $2}' >> /tmp/bt_IDS
echo bt_IDS:
cat /tmp/bt_IDS
bt_IDS="$( cat /tmp/bt_IDS | sort -u )"
[ -n "$bt_IDS" ] && echo "$bt_IDS" > /tmp/bt_IDS
echo bt_IDS sorted:
cat /tmp/bt_IDS
#Compile list of all device Names of paired devices (from bluetoothctl and from hardcoded list)
bluetoothctl paired-devices | awk '{for (i=3; i<NF; i++) printf $i " "; print $NF}' > /tmp/paired_devices
echo paired_devices:
cat /tmp/paired_devices
cat "$PAIRLIST" | awk '{for (i=3; i<NF; i++) printf $i " "; print $NF}' >> /tmp/paired_devices
paired_devices="$( cat /tmp/paired_devices | sort -u )"
[ -n "$paired_devices" ] && echo "$paired_devices" > /tmp/paired_devices
echo paired_devices sorted:
cat /tmp/paired_devices
grep -vf "$BLACKLIST" /tmp/paired_devices > /tmp/disp_devices
#Don't print empty device list, removes unnecessary empty choice in dmenu
len=$(cat /tmp/disp_devices | wc -l)
echo len: $len
[ $len -eq 0 ] && choice=$( printf "$actions" | dmenu -i -p 'What BT action would you like to perform:' )
[ $len -gt 0 ] && choice=$( printf "$(< /tmp/disp_devices)\n$actions" | dmenu -i -p 'What BT action would you like to perform:' )
cleanup(){
rm -f /tmp/bt_devices
rm -f /tmp/bt_IDS
rm -f /tmp/paired_devices
rm -f /tmp/new_devices
rm -f /tmp/disp_devices
bluetoothctl scan off > /dev/null
exit 0
}
case $choice in
"turn on") bluetoothctl power on
cleanup;;
"turn off") bluetoothctl power off
cleanup;;
"scan on") bluetoothctl power on && echo power on && sleep 2
[ -n $TERMINAL ] && ($TERMINAL -e bluetoothctl scan on ) || st bluetoothctl scan on
cleanup;;
"pair") bluetoothctl power on
bluetoothctl scan on & disown
notify-send "Bluetooth" "Searching for devices, please wait a bit"
sleep $SCAN_PERIOD
bluetoothctl devices | awk '{for (i=3; i<NF; i++) printf $i " "; print $NF}' > /tmp/bt_devices
grep -vf /tmp/paired_devices /tmp/bt_devices > /tmp/new_devices
choice=$( cat /tmp/new_devices | dmenu -l 10 -i -p 'pair with which device?' )
if [ -n "$choice" ]; then
bluetoothctl devices | awk '{print $2}' > /tmp/bt_IDS
dev_no=$(cat -n /tmp/bt_devices | grep "$choice" | awk '{print $1}')
dev_id=$(cat -n /tmp/bt_IDS | grep -E $dev_no"[[:space:]]" | awk '{print $2}' )
bluetoothctl pair $dev_id && sleep 2
bluetoothctl connect $dev_id
#if device is not already hard coded as paired, add to paired devices list
echo grep: $( grep $dev_id "$PAIRLIST" )
if [ -z $( grep $dev_id "$PAIRLIST" ) ]; then
echo "Device $dev_id $choice" >> "$PAIRLIST"
fi
fi
cleanup;;
"unpair") choice=$( cat /tmp/paired_devices | dmenu -l 10 -i -p 'remove which paired device?')
if [ -n "choice" ]; then
dev_no=$(cat -n /tmp/paired_devices | grep "$choice" | awk '{print $1}')
dev_id=$(cat -n /tmp/bt_IDS | grep -E $dev_no"[[:space:]]" | awk '{print $2}' )
bluetoothctl remove $dev_id
#remove device to unpair from hard coded paired devices list
new_paired_list="$( grep -v "$dev_id" "$PAIRLIST" )"
echo "$new_paired_list" > "$PAIRLIST"
fi
cleanup;;
esac
if [ -n "$choice" ]; then
dev_no=$(cat -n /tmp/paired_devices | grep "$choice" | awk '{print $1}')
dev_id=$(cat -n /tmp/bt_IDS | grep $dev_no | awk '{print $2}')
bluetoothctl power on
bluetoothctl connect $dev_id
fi
cleanup