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blomarchy/bin/blob-bluetooth-device

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#!/bin/bash
# blob:summary=Control a Bluetooth device
# blob:group=bluetooth
# blob:args=[pair|connect|disconnect|forget] <address>
# blob:examples=blob bluetooth device connect 00:11:22:33:44:55
set -e
usage() {
echo "Usage: blob-bluetooth-device [pair|connect|disconnect|forget] <address>" >&2
exit 1
}
action=${1:-}
address=${2:-}
[[ $action == "pair" || $action == "connect" || $action == "disconnect" || $action == "forget" ]] || usage
[[ $address =~ ^([0-9A-Fa-f]{2}:){5}[0-9A-Fa-f]{2}$ ]] || usage
power_on() {
[[ $(timeout 2s bluetoothctl show 2>/dev/null) == *"Powered: yes"* ]] && return
# Not bluetoothctl directly: Bluetooth is turned off by an rfkill soft block,
# and BlueZ refuses to power an adapter up while one is set.
blob-bluetooth-power on || true
}
trust_device() {
bluetoothctl trust "$address" >/dev/null 2>&1 || true
}
case "$action" in
pair)
power_on
timeout 20s bluetoothctl pair "$address" >/dev/null 2>&1 || true
trust_device
timeout 20s bluetoothctl connect "$address" >/dev/null 2>&1 || true
;;
connect)
power_on
trust_device
timeout 20s bluetoothctl connect "$address" >/dev/null 2>&1 || true
;;
disconnect)
timeout 10s bluetoothctl disconnect "$address" >/dev/null 2>&1 || true
;;
forget)
power_on
timeout 10s bluetoothctl disconnect "$address" >/dev/null 2>&1 || true
timeout 10s bluetoothctl remove "$address" >/dev/null 2>&1 || true
;;
esac