Introduce logging

[ntnn]

Introduce logging

Soft-touched logging would be nice, e.g. qf#log, qf#debug and
qf#error, which prefix the message with a vim-qf:level: and the
debug level only showing when e.g. g:qf_debug is true or the like.

This'd help greatly with debugging in the future as well as help
understand the code (e.g. on early returns etc.pp. a debug message would
act like a comment explaining the early exit.

[arecarn]

For some of of my scripts I've used Decho. It is definitely not perfect but it is pretty easy to start using.

[ntnn]

@romainl what do you think? Do you want external dependencies?
Another possibility would be to write our own logging library with
structured logging - though that might be a bit oversized for a bit of
scripting.

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On 14 November 2016 5:55:47 pm Ryan Carney [email protected] wrote:

For some of of my scripts I've used
Decho. It is definitely not perfect
but it is pretty easy to start using.

You are receiving this because you were assigned.
Reply to this email directly or view it on GitHub:
#22 (comment)

[romainl]

Silly me… that was #23.

[romainl]

@ntnn I don't want external dependencies if I can avoid them. I'd like to play with :throw and friends before turning to a logging lib.

[arecarn]

A real vimscript logging library would be very nice, I could never seem find one.

Once potentially nice thing about Decho is that it is only a dependency for anyone who wants to use logging. In my case I just enabled it for debugging and disabled it before committing changes or fixes.

[ntnn]

No, having a difference in the code between dev and production is not a choice.
I'd rather use a stub file which defines the functions as noops if the logging plugin is not loaded.

@romainl Mhm... I don't like exceptions, I'd rather sanitize input more.
A properly written logging library would be nice, on the other hand simple logging would be just a case of using a s:log function and qf#error, qf#debug and qf#info, wrapping the s:log. Those three levels should be sufficient for most use.