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removes unnecessary power option depending on power state

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Alexander Bocken 2020-06-28 14:04:09 +02:00
parent 28661c0ab3
commit f70de55ec9
1 changed files with 57 additions and 39 deletions
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96
bt
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@ -4,17 +4,14 @@ SCAN_PERIOD=5
#locations of blacklist and hard coded list of paired devices (watch out, need to modify Makefile as well if you want to change these values and still use make install) #locations of blacklist and hard coded list of paired devices (watch out, need to modify Makefile as well if you want to change these values and still use make install)
BLACKLIST=${XDG_DATA_HOME:-$HOME/.local/share}/bt/blacklist BLACKLIST=${XDG_DATA_HOME:-$HOME/.local/share}/bt/blacklist
PAIRLIST=${XDG_DATA_HOME:-$HOME/.local/share}/bt/paired PAIRLIST=${XDG_DATA_HOME:-$HOME/.local/share}/bt/paired
AUTOTRUST=true
actions="turn off actions="pair
turn on disconnect
pair
unpair" unpair"
if ! $AUTOTRUST; then #get power state of bluetooth controller
actions+=" powerstatus="$( bluetoothctl show | grep Powered | awk '{print $2}' )"
trust" scanstatus="$( bluetoothctl show | grep Discovering | awk '{print $2}' )"
fi
#Checks for necessary programs to be present. Very unlikely not to be present but let's just err on the safer side. #Checks for necessary programs to be present. Very unlikely not to be present but let's just err on the safer side.
for prog in dmenu bluetoothctl awk cat date nl; do for prog in dmenu bluetoothctl awk cat date nl; do
@ -24,9 +21,20 @@ for prog in dmenu bluetoothctl awk cat date nl; do
fi fi
done done
#start scanning as early as possible to speed up pairing process: poweron(){
bluetoothctl power on & bluetoothctl scan on &>/dev/null & [ "$powerstatus" = "no" ] && bluetoothctl power on
start_scan="$( date +'%s' )" }
scanon(){
if [ "$scanstatus" = "no" ]; then
bluetoothctl scan on &
start_scan="$( date +'%s' )"
fi
}
#start scanning as early as possible to speed up pairing process
#=> maybe use an option to do this? Otherwise ever invocation of bt powers on the controller.
poweron
scanon
#Compile list of all Bluetooth IDS of paired devices (from bluetoothctl and from hardcoded list) #Compile list of all Bluetooth IDS of paired devices (from bluetoothctl and from hardcoded list)
bt_IDS="$( ( bluetoothctl paired-devices && cat "$PAIRLIST" ) | sort -u | awk '{print $2}' )" bt_IDS="$( ( bluetoothctl paired-devices && cat "$PAIRLIST" ) | sort -u | awk '{print $2}' )"
@ -35,10 +43,14 @@ bt_IDS="$( ( bluetoothctl paired-devices && cat "$PAIRLIST" ) | sort -u | awk '{
paired_devices="$( ( bluetoothctl paired-devices && cat "$PAIRLIST" ) | sort -u | awk '{for (i=3; i<NF; i++) printf $i " "; print $NF}' )" paired_devices="$( ( bluetoothctl paired-devices && cat "$PAIRLIST" ) | sort -u | awk '{for (i=3; i<NF; i++) printf $i " "; print $NF}' )"
disp_devices="$( echo "$paired_devices" | grep -vf "$BLACKLIST" )" disp_devices="$( echo "$paired_devices" | grep -vf "$BLACKLIST" )"
echo "$paired_devices"
echo ----------------
echo "$disp_devices"
poweroption="$( echo "$powerstatus" | sed 's/yes/power off/; s/no/power on/' )"
#Don't print empty device list, removes unnecessary empty choice in dmenu #Don't print empty device list, removes unnecessary empty choice in dmenu
[ "$disp_devices" = "" ] && choice=$( echo "$actions" | dmenu -i -p 'What BT action would you like to perform:' ) [ "$disp_devices" = "" ] && choice=$( printf "%s\n%s" "$poweroption" "$actions" | dmenu -i -p 'What BT action would you like to perform:' )
[ "$disp_devices" != "" ] && choice=$( ( echo "$disp_devices" && echo "$actions" ) | dmenu -i -p 'What BT action would you like to perform:' ) [ "$disp_devices" != "" ] && choice=$( ( echo "$disp_devices" && printf "%s\n%s" "$poweroption" "$actions" ) | dmenu -i -p 'What BT action would you like to perform:' )
cleanup(){ cleanup(){
bluetoothctl scan off bluetoothctl scan off
@ -47,8 +59,8 @@ cleanup(){
pair(){ pair(){
#since this function can get called indefinitely, make sure to always be scanning and controller has power in the case that it got deactived by some other process. #since this function can get called indefinitely, make sure to always be scanning and controller has power in the case that it got deactived by some other process.
bluetoothctl power on &>/dev/null & #bluetoothctl power on &>/dev/null &
bluetoothctl scan on &>/dev/null & #bluetoothctl scan on &>/dev/null &
#check whether $SCAN_PERIOD seconds has already passed since starting scanning, if not, wait for the rest of that time. #check whether $SCAN_PERIOD seconds has already passed since starting scanning, if not, wait for the rest of that time.
if [ $((( "$(date +'%s')" - "$start_scan" ))) -lt $SCAN_PERIOD ]; then if [ $((( "$(date +'%s')" - "$start_scan" ))) -lt $SCAN_PERIOD ]; then
sleep_period="$((( "$SCAN_PERIOD" - "$( date +'%s')" + "$start_scan" )))" sleep_period="$((( "$SCAN_PERIOD" - "$( date +'%s')" + "$start_scan" )))"
@ -60,10 +72,15 @@ pair(){
sleep "$sleep_period" sleep "$sleep_period"
fi fi
echo "$paired_devices" > /tmp/paired_devices if [ $paired_devices = "" ]; then
new_devices="$( bluetoothctl devices | awk '{for (i=3; i<NF; i++) printf $i " "; print $NF}' | grep -vf /tmp/paired_devices )" echo "$paired_devices" > /tmp/paired_devices
rm -f /tmp/paired_devices new_devices="$( bluetoothctl devices | awk '{for (i=3; i<NF; i++) printf $i " "; print $NF}' | grep -vf /tmp/paired_devices )"
choice=$( (echo "$new_devices" && echo 'rescan' ) | dmenu -l 10 -i -p 'pair with which device?' ) rm -f /tmp/paired_devices
else
new_devices="$( bluetoothctl devices | awk '{for (i=3; i<NF; i++) printf $i " "; print $NF}' )"
fi
[ $new_devices = "" ] && options="rescan" || options=$(echo "$new_devices" && echo 'rescan')
choice=$( echo "$options" | dmenu -l 10 -i -p 'pair with which device?' )
if [ -n "$choice" ]; then if [ -n "$choice" ]; then
if [ "$choice" = "rescan" ]; then if [ "$choice" = "rescan" ]; then
start_scan="$( date +'%s')" start_scan="$( date +'%s')"
@ -79,22 +96,20 @@ pair(){
bluetoothctl trust "$dev_id" bluetoothctl trust "$dev_id"
fi fi
#if device is not already hard coded as paired, add to paired devices list #if device is not already hard coded as paired, add to paired devices list
if grep -q "$dev_id" "$PAIRLIST" if [ "$( grep "$dev_id" "$PAIRLIST")" != "" ]
then then
echo to be added to $PAIRLIST
echo Device "$dev_id" "$choice"
echo Device "$dev_id" "$choice" >> "$PAIRLIST" echo Device "$dev_id" "$choice" >> "$PAIRLIST"
fi fi
fi fi
cleanup
} }
case $choice in case $choice in
"turn on") bluetoothctl power on "turn on") bluetoothctl power on;;
cleanup;; "turn off") bluetoothctl power off;;
"turn off") bluetoothctl power off
cleanup;;
"scan on") bluetoothctl power on && echo power on && sleep 2 "scan on") bluetoothctl power on && echo power on && sleep 2
([ -n "$TERMINAL" ] && $TERMINAL -e bluetoothctl scan on ) || st bluetoothctl scan on ([ -n "$TERMINAL" ] && $TERMINAL -e bluetoothctl scan on ) || st bluetoothctl scan on;;
cleanup;;
"pair") pair;; "pair") pair;;
"unpair") choice=$( echo "$paired_devices" | dmenu -l 10 -i -p 'remove which paired device?') "unpair") choice=$( echo "$paired_devices" | dmenu -l 10 -i -p 'remove which paired device?')
if [ -n "$choice" ]; then if [ -n "$choice" ]; then
@ -104,22 +119,25 @@ case $choice in
#remove device to unpair from hard coded paired devices list #remove device to unpair from hard coded paired devices list
new_paired_list="$( grep -v "$dev_id" "$PAIRLIST" )" new_paired_list="$( grep -v "$dev_id" "$PAIRLIST" )"
echo "$new_paired_list" > "$PAIRLIST" echo "$new_paired_list" > "$PAIRLIST"
fi fi;;
cleanup;;
"trust") choice=$( echo "$paired_devices" | dmenu -l 10 -i -p 'remove which paired device?') "trust") choice=$( echo "$paired_devices" | dmenu -l 10 -i -p 'remove which paired device?')
if [ -n "$choice" ]; then if [ -n "$choice" ]; then
dev_no=$( echo "$paired_devices" | nl | grep -P "[0-9]+\t$choice$" | awk '{print $1}') dev_no=$( echo "$paired_devices" | nl | grep -P "[0-9]+\t$choice$" | awk '{print $1}')
dev_id=$( echo "$bt_IDS" | nl | grep -P "^.*$dev_no\t" | awk '{print $2}' ) dev_id=$( echo "$bt_IDS" | nl | grep -P "^.*$dev_no\t" | awk '{print $2}' )
bluetoothctl trust "$dev_id" bluetoothctl trust "$dev_id"
fi fi;;
"disconnect") choice=$( echo "$paired_devices" | dmenu -l 10 -i -p 'remove which paired device?')
if [ -n "$choice" ]; then
dev_no=$( echo "$paired_devices" | nl | grep -P "[0-9]+\t$choice$" | awk '{print $1}')
dev_id=$( echo "$bt_IDS" | nl | grep -P "^.*$dev_no\t" | awk '{print $2}' )
bluetoothctl disconnect "$dev_id"
fi;;
"*")
dev_no=$( echo "$paired_devices" | nl | grep -P "[0-9]+\t$choice$" | awk '{print $1}')
dev_id=$( echo "$bt_IDS" | nl | grep -P "^.*$dev_no\t" | awk '{print $2}')
bluetoothctl power on
bluetoothctl pair "$dev_id"
bluetoothctl connect "$dev_id";;
esac esac
if [ -n "$choice" ]; then
dev_no=$( echo "$paired_devices" | nl | grep -P "[0-9]+\t$choice$" | awk '{print $1}')
dev_id=$( echo "$bt_IDS" | nl | grep -P "^.*$dev_no\t" | awk '{print $2}')
bluetoothctl power on
bluetoothctl pair "$dev_id"
bluetoothctl connect "$dev_id"
fi
cleanup cleanup