Commit 675e0fb3 authored by a's avatar a
Browse files

waiting until the picture is taken, refactoring

parent ca6e908f

shoot.sh

+28 −3
Original line number Diff line number Diff line
@@ -14,6 +14,11 @@ set -o pipefail # fail if any command in pipeline fails 




get_JSON() {

	EXPECTED_RVAL=0

	if [ $# -eq 1 ]; then

		EXPECTED_RVAL=$1

	fi



	RESPONSE=''

	OPEN_BRACKETS=0
@@ -31,8 +36,8 @@ get_JSON() { 
				echo "Received JSON: $RESPONSE" >&2



				# Assert the response contains '"rval":0'

				echo "$RESPONSE" | grep '"rval":0' >/dev/null || {

					echo 'Error: non-zero return value' >&2

				echo "$RESPONSE" | grep '"rval":'$EXPECTED_RVAL >/dev/null || {

					echo 'Error: unexpected return value' >&2

					false

				}

				break
@@ -41,11 +46,31 @@ get_JSON() { 
	done

}



get_token() {

	echo '{"msg_id":257,"token":0}' && get_JSON

	TOKEN="$(echo \"$RESPONSE\" | sed 's/.*"param":\([0-9][0-9]*\).*/\1/')"

}



shoot() {

	echo '{"msg_id":4864,"token":'$TOKEN'}'



	get_JSON # "capture was enqueued"



	get_JSON 128 # "capture has finished"

	echo "$RESPONSE" | grep '"msg_id":8193' >/dev/null # assert "capture has finished" message id

	CAPTURED_FNAME=$(echo "$RESPONSE" | sed 's/.*"param":"//; s/".*//') # extract filename

	echo "Captured $CAPTURED_FNAME" >&2

}



# Commands to run on the camera

commander() {

	get_token

	shoot

}





# unused

commander_test() {

	# 01 Request a token/session id

	echo '{"msg_id":257,"token":0}' && get_JSON

	TOKEN="$(echo \"$RESPONSE\" | sed 's/.*"param":\([0-9][0-9]*\).*/\1/')"