Yes, but I think Eric wanted to avoid having to write the prefix part,
which git won't let you do right now.
If you have a ref in .git/refs/svn-tracker/git-svn-HEAD, you would have to
write out all of "svn-tracker/git-svn-HEAD", because unlike a "real
branch", get_sha1() won't look into the "svn-tracker" without it being
explicitly mentioned.
Now, some tools will actually do "for_each_ref()" and check the ref-name
against each of them (so if you pass in "foo", it will check them afainst
_any_ ref-subdirectory that contains "foo"). But get_sha1() won't.
We could fix get_sha1(), but part of the logic was that other
subdirectories are special, and as such they _should_ be mentioned, so
that a file in such a special directory isn't ever confused with a real
branch.
But if you were to use for example .git/refs/git-svn/tracking as the
svn-tracking reference head, and then you'd be perfectly able to use
git log git-svn/tracking..
to see what you've done since the last svn import?
(or use HEAD, if you prefer that over "tracking")
Linus
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