How can I rewrite history so that all files, except the ones I already moved, are in a subdirectory?

Question

I have a project under git. One day I moved all project files from current directory to foo/bar/ under the project. I did it using git mv

Answer 1

To wrap things up here's a short summary of what I did. The command that worked for me was:

if [ ! -e foo/bar ]; then mkdir -p foo/bar; git ls-tree --name-only $GIT_COMMIT | grep -v ^foo$ | xargs -I files mv files foo/bar || echo ""; fi

The echo command that I added at the end ensured that even when mv fails entire command will continue running. It didn't move contents of foo/bar/foo, but I can live with that.

Thanks a lot to Dan Moulding (!!!) and Jefromi for the help.