Yes, you can specify which branch to deploy by using the --branch option with the vapor deploy command. For example, to deploy the develop branch, you would run:
vapor deploy --branch=develop
If you only want to deploy certain files or directories, you can use the --include and --exclude options. For example, to deploy only the app directory, you would run:
vapor deploy --include=app
And to exclude the tests directory, you would run:
vapor deploy --exclude=tests
Note that the --include and --exclude options can be used together to fine-tune which files and directories are deployed.