Bitbucket has a bit imprecise documentation about pushing an existing code to their repo. If you have an existing directory without git control, and would like to push it to bitbucket, you may get the following error:
No refs in common and none specified; doing nothing. Perhaps you should specify a branch such as 'master'. Everything up-to-date
Here is how to solve it.
# go to the directory containing your existing project
# initialize git
# add "www" directory"
git add www
# commit it locally
git commit -m "initial commit"
# add it to bitbucket repository
git remote add origin https://email@example.com/xxxxx/sitename.git
# finally, this one will push it to bitbucket
git push -u origin --all