Feature request: version of DART recorded in the log file

[hkershaw-brown]

Use case

Read other people's log files from various times in history.

Is your feature request related to a problem?

Not knowing which version of dart was used to produce some output.
Not knowing if the user has local modifications, committed or otherwise.

Describe your preferred solution

Not sure.
Include a version string at compile time "git describe --tags" that gets printed in the log file message

 --------------------------------------
 Starting ... at YYYY MM DD HH MM SS = 
                 1884 4 16 10 29 13
 Program Filter v0.0.1-13-ge74ab9573
 --------------------------------------

Describe any alternatives you have considered

🔮 Any method of divination that can tell you the state of the code when it was compiled, store that in the executable, and output the info to the log file. I think git may be the way to go for what version of the code was committed at compile time (maybe also modified but not committed info - set a flag plus_unknown_mods).

[hkershaw-brown]

the mpas log has --dirty for locally modified code

MPAS-Atmosphere Version 8.2.2
 
Output from 'git describe --dirty': v8.2.2-dirty

https://github.com/MPAS-Dev/MPAS-Model/blob/41e9a3fb8ca6b9250a7405209a5c60996318409f/cmake/Functions/MPAS_Functions.cmake#L42-L56

[tyiop794]

Hey, could you assign me to this issue? I'd be willing to work on it.