On Mon, 15 Aug 2005, Martin Langhoff wrote:
> > So in a cvsimport, you'll never see a merge back to the head, even if one
> > technically took place.
> There may be some surprises in here! gitk --all shows at least one
> branch opening and merging back into origin, and it has figured it out
Oh, wow. The new cvsimport is obviously being a hell of a lot smarter than
my original one was. Goodie.
> Except for the keyword expansion. surely there's a way to tell cvsps
> to not do it. Why would we ever want it?
Ahh. I don't think we should blame cvsps, I think cvsimport should use the
"-ko" flag to disable keyword expansion or whatever the magic flag is.
Sven, Matthias, opinions? I've never used CVS keyword expansion, and
always felt it was pointless, but hey..
> > branches and heads are the same thing in git.
> right. There are two separate directories in .git for them, so I was
> misled by that. Should I assume git is safe from name clashes or is it
> up to porcelain to deal with such minutiae?
Well, you actually are _expected_ to get clashes.
What happens normally (at least for core git) is that the ".git/branches"
directory contains external sources for the branches (for example, a "git
clone" will fill in the "origin" source, while I often have a
".git/branches/parent" in my tree because). That is just a pointer to
where the external branch exists.
Then, when you do something like
git fetch parent
it will look up the source of "parent" by looking in the
".git/branches/parent" file, and update the ".git/refs/heads/parent"
branch appropriately from that external branch.
So in this example the parent "head" ("local branch") points to the actual
_commit_ we have, while the ".git/branches/parent thing points to what
_external_ branch it came from.
But yes, you _can_ mess this up if you want to. If you have the same
"external branch" name that you use for an "internal branch", you deserve
all the confusion you get ;)
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