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Is there a way to use rosmsg to query for all messages that contain another msg type?
For instance, I'd like to see all message types which contain a sensor_msgs/Image. (querying services the same thing would also be useful)
Doing a rosmsg show on every message output by rosmsg and grepping it for the type is super slow, probably 10 minutes or more for all the messages.
This can be a good start:
grep -R --include \*.msg --include \*.srv "sensor_msgs/Image" $(echo $ROS_PACKAGE_PATH | sed 's/:/ /g')
Maybe a recursive call to grep is necessary, so you could find message types that use Image indirectly. But in my case this can be done manually, because I get just one result (and 2 comments):
/opt/ros/indigo/share/polled_camera/srv/GetPolledImage.srv: # against incoming sensor_msgs/Image header.
/opt/ros/indigo/share/stereo_msgs/msg/DisparityImage.msg:sensor_msgs/Image image
/opt/ros/indigo/share/theora_image_transport/msg/Packet.msg:Header header # Original sensor_msgs/Image header
To exclude the comments:
grep -R --include \*.msg --include \*.srv "^sensor_msgs/Image" $(echo $ROS_PACKAGE_PATH | sed 's/:/ /g')
Asked: 2015-11-14 16:55:33 -0500
Seen: 319 times
Last updated: Nov 21 '15
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I've never heard of a function/script for that, but the code for the auto completion for 'rosmsg show' should be able to create a list of msg definitions in which you could just grep. Sounds like a fun python finger exercise.
Are you looking for "all" published topics that contain that message type? Or are you looking for messages that contain another message type (the message hierarchy)?
@jeremya messages types, I updated the question to reflect that.