Feature #6368
A "print" feature to assist in debugging
100%
Description
To assist in debugging fhicl files we request a feature like the following. The syntax is meant to be suggestive of the functionality we want not a prescription for the exact syntax we want.
physics : {
producers : {
foo : @local::foo
@echo "The value of foo is: " foo
}
}
When the parser encounters the "@echo" line it would cout or cerr the quoted text and the value of the symbol physics.producers.foo . I don't know enough about how the parser works to fully understand what I mean by "when the parser encounters this line..." but something close to that must have a well defined meaning.
History
#1 Updated by Christopher Green about 5 years ago
- Subject changed from An a "print" feature to assist in debugging to A "print" feature to assist in debugging
- Category set to Infrastructure
- Status changed from New to Feedback
- SSI Package - added
- SSI Package deleted (
)
After thinking about this, we would like to have a discussion. We are wondering if a command-line option, --debug-param=<x>, showing the full evolution of a particular parameter rather than the snapshot your @echo would provide, might be more useful. There is also a question over what the behavior should be for non-atoms (sequences and tables).
#2 Updated by Andrei Gaponenko about 5 years ago
Many people do not know about the ART_DEBUG_CONFIG functionality. Addressing https://cdcvs.fnal.gov/redmine/issues/3151 would help to spread the information. Having a command line option "--debug-config" would be even more convenient. (Can't you do "putenv()" internally so that users are not required to set and unset the environment var?)
Andrei
#3 Updated by David Brown about 5 years ago
What would the result of --debug-param=<x> be? Just printout to the users screen? The main point of @echo would be to record the value of some configuration in the log file of a functioning job, so that it can later be referenced to the output of that job. ART_DEBUG_CONFIG is fine for debugging scripts but it doesn't serve this purpose.
#4 Updated by Kyle Knoepfel over 4 years ago
- Target version set to 521
#5 Updated by Christopher Green over 2 years ago
- Status changed from Feedback to Closed
- Target version deleted (
521) - % Done changed from 0 to 100
We believe that the FHiCL annotation facilities in the current art suite satisfy the need behind this request. If this is not the case, please open a new feature request.