Can I use conditional execution in Fabric?

Question

Is it possible to ask the fabric to perform actions conditionally? This should be pretty trivial because it is "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 behavior that depends on the value of the environment variable in the host?

Answer 1

It is pretty simple:

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