[kwlug-disc] How GIT stores stuff.

[Znoteer]

On Tue, May 03, 2022 at 03:53:26PM -0400, Bob B wrote:

[snip]
> 
> So many questions! Do you have a good learning resource for git or is it just a matter of using it more and learning nuances like this as you come across them?

I am not a power user of git.  I only rarely have to use it, and only for very simple things, in order to colaborate on certain doc projects.  I have to start nearly at zero every time to figure out how to use git because of how infrequently I need to use it.  :)

That said, I've found this resource, known to many simply as "the git book", useful on numerous occasions:

https://git-scm.com/book/en/v2

I don't know if it has the kind plumbing details Chris Frey was describing, though.  I've only used it for figuring how do to stuff.

Znoteer the Montreal lurker.

> 
> BB
> 
> 
> > -----Original Message-----
> > From: kwlug-disc <kwlug-disc-bounces at kwlug.org> On Behalf Of Chris
> > Frey
> > Sent: May 3, 2022 2:24 PM
> > To: KWLUG discussion <kwlug-disc at kwlug.org>
> > Subject: Re: [kwlug-disc] How GIT stores stuff.
> > 
> > On Tue, May 03, 2022 at 10:36:23AM -0400, Bob B wrote:
> > > It has some references to deeper information that look enticing, but
> > in
> > > summary I think it confirms what I said in that GIT stores complete
> > files,
> > > not deltas. At least not deltas as 'diffs' of text files.
> > 
> > This is correct.  At least until you run 'git gc' which then turns
> > those individual files into packs, which do store things in diff-like
> > ways.
> > 
> > When you do a fresh clone from a remote repository, you will download
> > the pack,
> > which you can see if you look inside the .git directory.  If you start
> > your own git repo, you will see many individual files in the objects
> > subdirectory until you run git-gc and git decides it is time to
> > pack things up for optimization purposes.
> > 
> > - Chris