A while ago I reported a problem where having:
as bare repositories and trying to clone them using alternates could
cause git to confuse them.
The "conclusion" was that I needed to do:
git clone -s -n /somewhere/foo/ x
to stop it looking at the .git version. Ok, fine. Ugly but I can live
with it and we added the workaround.
I've now discovered we only half solved the problem. Whilst the
alternates might get setup correctly, the branch names and revisions get
fetched from the .git version still.
It appears that even if you have a repository setup with an origin url
of "/somewhere/foo/", when you run git fetch origin -f refs/*:refs/*,
it will look at foo.git if it exists.
The problem is the trailing slash is stripped off by the code in
git-fetch itself. It appears to have done this since it was converted
from a .sh function. It means it appears impossible to fetch the
branchnames/revisions from foo when foo.git exists.
I work with build systems that build complete linux systems and we're
running into failures caused by this. I really need pre-existing
versions of git to work so I can't even patch git to work around the
problem without significant cost. So far the only way I've figured out
to avoid this is to create a symlink to /somewhere/foo/ and then set url
to point at the symlink. This way I can prevent it from finding the
I thought I'd mention this in the hopes git can be fixed to behave
better in this situation and perhaps I can drop the hacks I'm going to
have to add sometime in the future.
If anyone has any ideas for better workarounds I'd love to hear about
 "Alternates corruption issue", 2012/1/31
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