af84abd40152313cbb537e669f56ea5481822979
[khatus.git] / x2 / src / bash / exe / khatus_sensor_bluetooth.sh
1 #! /bin/sh
2
3 set -e
4
5 # TODO: Centralize the definitions of the constants, as in AWK code.
6 FS1='|' # Fields separator, level 1 (a record's fields)
7 FS2=':' # Fields separator, level 2 (a field's subfields)
8
9 count_powered_controllers() {
10 echo show | bluetoothctl | grep -c 'Powered: yes'
11 }
12
13 count_connected_devices() {
14 echo paired-devices \
15 | bluetoothctl \
16 | awk '/^Device +[0-9a-zA-Z][0-9a-zA-Z]:/ {print $2}' \
17 | xargs -I % sh -c 'echo info % | bluetoothctl' \
18 | grep -c 'Connected: yes'
19 }
20
21 printf "%s%s%d\n" 'count_powered_controllers' "$FS1" "$(count_powered_controllers)"
22 printf "%s%s%d\n" 'count_connected_devices' "$FS1" "$(count_connected_devices)"
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