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