git-filter-branch behavior

["David Neu" <david@davidneu.com>]

All,

Running

git-filter-branch --tree-filter 'rm -rf subdir/' -- --all

as shown below seems to leave empty commits
corresponding to subdir/ in the tree.  Is this the expected
behavior?  If so is there a command to remove the empty
commits?  Using git-rebase -i to edit the commit history
works, but is a bit tedious on a large tree.

Many thanks!

Cheers,
David

***** ***** ***** ***** *****

mkdir test-filter-branch
cd test-filter-branch

echo 'base1' > base.txt
mkdir subdir
echo 'sub1' > subdir/sub.txt
git-init
git-add .
git-commit -a -m "Commit 1"

echo 'base2' >> base.txt
git-commit -a -m "Commit 2"

echo 'sub3' > subdir/sub.txt
git-commit -a -m "Commit 3"

echo 'base4' >> base.txt
echo 'sub4' > subdir/sub.txt
git-commit -a -m "Commit 4"

git-filter-branch --tree-filter 'rm -rf subdir/' -- --all

gitk &