Web lists-archives.com

Re: Understanding pack format




On Tue, Nov 6, 2018 at 3:23 AM Farhan Khan <khanzf@xxxxxxxxx> wrote:
> To follow-up from the other day, I have been reading the code that
> retrieves the pack entry for the past 3 days now without much success.
> But there are quite a few abstractions and I get lost half-way down
> the line.

Jeff already gave you some pointers. This is just a side note.

I think it's easier to run the code under a debugger and see what it
does than just reading it. You can create a repo with just one blob to
have better control over it (small packs also make it possible to
examine with a hex editor in parallel), e.g.

git init foo
cd foo
echo hello >file
git add file
git repack -ad
gdb --args git show :./file

then put a breakpoint in some interesting functions (perhaps one of
those Jeff pointed out)
-- 
Duy