Regression in `git add' in 1.7's 48ffef966c with a wildcard in .gitignore

["Ævar Arnfjörð Bjarmason" <avarab@gmail.com>]

I've discovered a regression in git-add the 1.7 release which I can't
see reported anywhere. It was introduced in
48ffef966c762578eb818c0c54a7e11dd054f5db by Junio C Hamano at Fri Jan
8 23:05:41 2010.

The problem is that when you have a .gitignore file with * in it
git-add will only complain that you're trying to add ignored files if
they're in the top level of your repository, for files in
subdirectories it now just silently fails:

    $ mkdir test && cd test && git init
    $ echo "*" > .gitignore
    $ mkdir directory && touch foo directory/foo

So far so good, now if I try to add 'foo' I get an error from both 1.6 and 1.7:

    $ git add foo
    The following paths are ignored by one of your .gitignore files:
    foo

But 1.7 just silently fails to add directory/foo to the index:

    $ git add directory/foo
    $ echo $?
    0

1.6 however does the right thing:

    $ git add directory/foo
    The following paths are ignored by one of your .gitignore files:
    directory/foo
    $ echo $?
    128

A test script / bisect script I used is available at
git://github.com/avar/git-add-fail.git I couldn't figure out how to
turn it into a Git test.