According to the Heroku docs (http://docs.heroku.com/slug-compiler),
the git repository is not included in the slug.

I've had the same experience as Stephen - I'd specify gems in my
Gemfile that would push the slug size up, and then remove them without
any effect to the slug size. Then I could destroy the app, create a
new one from the same git repository and wind up with a smaller slug
size than I'd had before.



On Oct 11, 11:52 pm, Keenan Brock <[email protected]> wrote:
> Hi Stephen,
>
> If you checked in a gem into git
> Then you deleted the gem from git.
> Git still has the gem.
> It is not showing up for today, but git log will show when you added it and 
> removed it.
>
> Guess I do not know if you are checking in your bundle dir and gems into git.
>
> 1. So are you saying your repo is 17mb, or your slug is 17mb?
>
> I'd imagine that the slug would be smaller on your change to the Gemfile.
> But you stating that your slug is big suggests that maybe the .git directory 
> is included in the slug?
>
> The slug size does affect the speed in which a dyno is started / compiles / 
> restarts.
> But I agree with Chris, I can't imagine it would slow it down too much.
>
> --Keenan
> On Oct 12, 2010, at 12:48 AM, Chris Hanks wrote:
>
>
>
> > Yeah, this has happened to me before, too. I'm pretty sure the problem
> > is on Heroku's end.
>
> > I don't worry that much about it, though, since the max slug size is
> > 100 MB.
>
> > On Oct 11, 8:57 pm, stephen murdoch <[email protected]>
> > wrote:
> >> I have encountered a few strange problems with Heroku this evening.
>
> >> My repo size somehow managed to bloat to 17mb so I removed some gems
> >> from my Gemfile (ran bundle install, git add Gemfile.lock etc etc) and
> >> found that my repo was still 17mb.
>
> >> I removed all my gems (apart from rails and pg) and the repo didn't
> >> get any smaller.  My app is no bigger than 2mb.
>
> >> So I deleted my app (along with my .git and .bundle directories) and
> >> created everything from scratch.
>
> >> This seemed to fix the problem, until just now, when I tried to remove
> >> 4 large gems from my Gemfile and didn't see any change in the size of
> >> my compiled slug on Heroku.
>
> >> Is this something that other people are experiencing?
>
> >> FWIW, I've tried everything I can think of, including removing
> >> Gemfile.lock, .bundle etc etc
>
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