Add GN (Generate Ninja) filetype about ack3

[petdance]

Also: It makes me happy to see folks reading the docs. :-)

[petdance]

So it sounds like this roughly analogous to a Makefile, right?

How long have you been using it? Are you typically searching for something in them, or excluding GN files?

[thiagowfx]

So it sounds like this roughly analogous to a Makefile, right?

It's a bit more complicated than that, as the files are often composed together. If you were to compare it with a Makefile, I'd say it's similar to cmake / CMakeLists.txt in the sense that in a single project you tend to find many of them scattered around the codebase.

How long have you been using it?

Since early August, apparently! thiagowfx/.dotfiles@dcc2568

Are you typically searching for something in them, or excluding GN files?

Typically searching for something in them, like a buildflag or a variable. Something like: ack --gn is_chrome_for_testing or ack --gn executable\( or ack --gn browser_tests.