add profiling option, using code woven module timer

[naturallymitchell]

#27

[Arnaz87]

what about when the logs are separated by potentially hours?

[naturallymitchell]

that's not at all what's going on in that screenshot

[Arnaz87]

I know, it's a case the screenshot doesn't cover, I want to know what should we do if that happens? It can happen for sure, should we log hundreds of thousands of milliseconds or log the hour it happens?

[naturallymitchell]

timeago.js already answered that

[naturallymitchell]

will degrade speed, so needs to be optional
need to read from the end to find if there's a return in the last line, and if so put the _log.time()(??) before it
can any fs function do this? https://users.rust-lang.org/t/idiomatic-way-of-reading-a-text-file-line-by-line-in-reverse/8547
would a streaming reader make more sense?
once we have the last line number or the line number of the return, can we edit it at that line without reading line by line?
https://www.reddit.com/r/rust/comments/2pijdj/accessing_file_name_function_name_and_line_number/
https://doc.rust-lang.org/std/io/struct.LineWriter.html

#207 #208 #210 #211

[naturallymitchell]

also, I definitely want to start the timer outside of the module
if we have to modify it from the head, then every line number gets off from source
the last line is fine to change

[naturallymitchell]

move to jazzdotdev/jazz-libs#2