iFit: implement a global verbosity control system

McStasMcXtrace / iFit

a simple library to analyze data (with McCode and Phonons/DFT hooks). :warning: this project has been moved to https://gitlab.com/soleil-data-treatment/soleil-software-projects/remote-desktop

http://ifit.mccode.org

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iFit: implement a global verbosity control system #172

Closed farhi closed 5 years ago

farhi commented 5 years ago

How to do that ?

Can be stored as persistent in Libraries, and set as e.g. 'iLoad verbosity:low'
Can be stored as new property in Objects
verbosity level should be set as a number (0 up), or string 'silent','low','medium','high','debug'. -1 would mean use default.
Must be accessible from all iFit parts, e.g. objects and Libraries: iData, iLoad, iFunc, ...
Must be copied into objects so that each object can be set to a higher verbosity if needed, or defaults to global (-1 or 'default').
When not set, verbosity level could be searched in other classes/libraries.

farhi commented 5 years ago

A simple and existing solution is:

https://fr.mathworks.com/matlabcentral/fileexchange/42909-log-output-verbosity-control

which is a class that controls output according to a verbosity level. This seems efficient and would suit our needs here.

farhi commented 5 years ago

A simpler system even would be a 'verbosity' function in iFit/Applications:

verbosity('silent') or verbosity(0) or verbosity '0' would set the current level (persistent)
verbosity(level, varargin) would output fprintf(varargin) when verbosity 'level' is higher than current

farhi commented 5 years ago

We choose to use the default 'warning' Matlab system:

warning on: detailed/verbose backtrace and messages
warning off backtrace: normal messages (no backtrace)
warning off: no messages except errors.