Add support for printing current file+line

[suan]

I wrote quick-debug not too long ago, but then I came across letters and I love it.

One thing I don't think you have though and which I think would be really useful, is a way to print just the current file+line (without an entire stacktrace). It is very useful for giving context. For example in quick-debug, If you do D.bg(:in){'someobj'} it would print out something like [/path/to/code/file:99] someobj ~> <someobj.inspect>

Apart from that, hopefully you wouldn't mind skimming through quick-debug - there might be some other ideas there that you might like. For example another thing I hope you'd consider adding is having an option to use a dedicated log file regardless of where I call Letter's log methods from. In quick-debug I write them all to /tmp/quick-debug.txt, and within large projects it's been tremendously useful to see only the debug statements I care about all in a single file.

[davejacobs]

I like these suggestions. I'll look into the over the weekend.

[davejacobs]

Do you envision having the file line printed out every time a letters method is called? Or only if it goes to STDOUT? I'm trying to keep letters methods as orthogonal as possible. What about a :line_no option that you can pass into any letters method that has output?

(I'm going to push a Letters config block in the next day or so, so you could turn it on by default.)

[muescha]

i think it would be nice to have it as global parameter so that i can decide at only one time i need this info (and not nedd to include it in every call)

maybe somehow like #11 you do require 'letters/log_file_and_line'

or it can be done in the way to make it with :line_no option and create a way setup default options values which i can set at the begin of file (for all options :line_no or for letter+option like :d_line_no ). this is more global and other options benefit from this.

[suan]

Sorry for the late response!

Ideally what I'd like to see is the file line printed out next to anything from letters printed out to STDOUT or to a log file. It can either be on or off by default, and can be configured somewhere other than after the gem is loaded, (for example, a ~/.lettersrc config file) The reason being that letters is a library that is usually manually typed in and required at debug time, and it's tedious to have to "turn on" this feature everytime I add it into my code.

[davejacobs]

Okay, sorry for the massive delay. I've been in Clojure land recently. I have more time to add features to Letters now, though, so I want to clarify -- do you want the line number of any Letters call logged to STDOUT when that method is called?

[davejacobs]

This is supported now! To see it in action:

require "letters"

Letters.config do
  all :line_no => true
end

[1, 2, 3].b.map {|x| x ** 2 }.a { size == 3 }.select(&:odd?)