Question

Is it possible to ask fabric to perform actions conditionally? This should be fairly trivial, because it’s “just Python”, but I’m not 100% sure how to run commands and capture their return code or output.

As an example, how would I have behaviour that is conditional on the value of an environment variable in the host?

Answer 1

It’s pretty straightforward:

@hosts('host.example.com')
def task():
    if run('echo $SOME_VAR') == 'some value':
        run('some_other_command.sh')