How to create a patch with git

When a developer to make small fixes in a part of the project, but he didn't want to give him access to the repository. In this scenario the developer can create a git patch and send it via mail.
The following command will create .patch files per commit:

$ git format-patch origin patch-myproject.patch

Later you can send the patch by mail:

$ git send-email patch-myproject.patch

The patch can be imported with by executing this:

$ git apply /tmp/patch-myproject.patch

This command will apply the patch, but it doesn't create commits. So, to generate a series of commits, use the git am command:

$ git am /tmp/patch-myproject.patch