Bruno BELANYI
66a55063bb
The `/bin/bash` path is not assured by POSIX, however the path `/usr/bin/env bash` should work, if bash is in the PATH.
117 lines
2.6 KiB
Bash
Executable file
117 lines
2.6 KiB
Bash
Executable file
#!/usr/bin/env bash
|
|
|
|
# Inspired by <https://github.com/cdown/btmenu>
|
|
|
|
function show_usage() {
|
|
echo "A simple bluetoothctl from bluez-utilies interface for dmenu(1)"
|
|
echo ""
|
|
echo "Usage:"
|
|
echo -e "\tbtmenu [OPTION] [DEVICE]"
|
|
echo -e "\t\tWithout any options, defaults to connecting to device"
|
|
echo "Options:"
|
|
echo -e "\t-h, --help\n\t\tshow this message and quit"
|
|
echo -e "\t-d, --disconnect\n\t\tDisconnect the device"
|
|
exit 0
|
|
}
|
|
|
|
function _bluetoothctl() {
|
|
LC_ALL=C timeout 30 bluetoothctl
|
|
}
|
|
|
|
# Connects by default
|
|
mode=connect
|
|
|
|
# Name -> MAC
|
|
declare -A DEVICES
|
|
while read -r _ mac name; do
|
|
DEVICES["$name"]=$mac
|
|
done < <(echo "devices" | _bluetoothctl | awk '$1 == "Device"')
|
|
|
|
# Notify the user about the operation
|
|
function notify() {
|
|
local msg
|
|
local is_error
|
|
|
|
msg=${1?BUG: no message}
|
|
is_error=${2:-0}
|
|
|
|
if command -v notify-send >/dev/null 2>&1; then
|
|
notify-send "btmenu" "$msg" # TODO: escaping
|
|
fi
|
|
|
|
if (( is_error )); then
|
|
printf 'ERROR: %s\n' "$msg" >&2
|
|
else
|
|
printf '%s\n' "$msg"
|
|
fi
|
|
}
|
|
|
|
function execute_mode() {
|
|
local mode
|
|
local name
|
|
local mac
|
|
local preposition
|
|
local expected_to_connect
|
|
local retries
|
|
|
|
mode=${1?BUG: missing mode}
|
|
retries=15
|
|
|
|
case $mode in
|
|
connect)
|
|
preposition=to
|
|
expected_to_connect=yes
|
|
;;
|
|
disconnect)
|
|
preposition=from
|
|
expected_to_connect=no
|
|
;;
|
|
esac
|
|
|
|
if ! (( ${#DEVICES[@]} )); then
|
|
notify "No devices found. Are they registered with D-Bus?" 1
|
|
return 2
|
|
fi
|
|
|
|
name=$(printf '%s\n' "${!DEVICES[@]}" | dmenu -l 10 -p "btmenu" "${dmenu_args[@]}")
|
|
[[ $name ]] || return
|
|
mac=${DEVICES["$name"]}
|
|
|
|
notify "Attempting to $mode $preposition $name"
|
|
|
|
while (( retries-- )); do
|
|
printf 'power on\n%s %s\n' "$mode" "$mac" | _bluetoothctl
|
|
if printf 'info %s\n' "$mac" |
|
|
_bluetoothctl |
|
|
grep -Pq '^[\t ]+Connected: '"$expected_to_connect"; then
|
|
notify "${mode^}ed $preposition $name"
|
|
return 0
|
|
fi
|
|
sleep 1
|
|
done
|
|
|
|
ret="$?"
|
|
notify "Failed to $mode $preposition $name" 1
|
|
return "$ret"
|
|
}
|
|
|
|
i=2
|
|
|
|
# FIXME: I want to have a list of devices with their connection status instead
|
|
# of having to launch the script with the correct argument to connect/disconnect
|
|
for arg do
|
|
if [[ $arg == -- ]]; then
|
|
dmenu_args=( "${@:$i}" )
|
|
break
|
|
fi
|
|
|
|
case "$arg" in
|
|
-d|--disconnect) mode=disconnect ;;
|
|
-h|--help) show_usage ;;
|
|
esac
|
|
|
|
(( i++ ))
|
|
done
|
|
|
|
execute_mode "$mode"
|