migrating existing project to git
Create a new repository.

    git init

Copy the files from the oldest .zip file into the repository.

    git add ...
    git commit ...

Delete the files copied from the oldest .zip file.
Copy the files from the second oldest .zip file into the repository.

    git add ...
    git commit ...

Delete the files copied from the second oldest .zip file.
...

git add -A .

git remote add jdc file:///opt/src/tile-qt-jdc
git fetch jdc
git ls-tree 1519481
git read-tree -m 1519481
git checkout-index -f -u -a