On 2008.04.04 22:27:12 -0400, Sean Brown wrote:
quoted text
> On Fri, Apr 4, 2008 at 6:17 PM, Björn Steinbrink <B.Steinbrink@gmx.de> wrote:
> > On 2008.04.04 18:02:56 -0400, Sean Brown wrote:
> >  > Last night I decided to see what storage size differences I might see
> >  > between an svn repo and a git one.  So I imported a highly used
> >  > subversion repository into git and was shocked to see how huge the git
> >  > version was.  I used a repo that has a lot of branches and tagged
> >  > releases just to make sure importing into git would in fact keep all
> >  > of the history.  It did keep the history, but the total disk usage was
> >  > very different:
> >  >
> >  > $subversionbox # du -hs ./my_sample_website/
> >  > 67M   ./my_sample_website
> >  >
> >  > $localhost # du -hs ./git-samplesite/
> >  > 3.6GB ./git-samplesite/
> >
> >  How much of that is in the .git/svn directory? The contents of that
> >  directory are used to map git commits to svn revision and git versions
> >  before 1.5.4 had a quite space consuming file format for that. The new
> >  format is a lot better. If you want to switch completely, you can even
> >  just delete the .git/svn directory, as that's only required as long as
> >  you want to interact with the corresponding svn repository.
> >
> >  And finally, you might want to repack to repository once after the
> >  initial import, to get a smaller repo. Something like:
> >  git repack -a -d -f --window=100 --depth=100
> >
> 
> The svn folder (in the.git directory) was only about 4.2 MB.  After
> running the repack (and then after that git gc as mentioned by another
> in this thread), it's still about 3.5 GB.
> 
> git-samplesite (master)]$ du -hs ./*
> 2.1G	./branches
> 1.4G	./tags
>  66M	./trunk

Uhm, you forgot to use -s when doing the clone. That would have created
real git branches instead of the directories... What you are counting is
the size of the checked out, uncompressed files of _all_ branches and
_all_ tags (and trunk). The repo size of basically what "du -sh .git"
would give.

Björn
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