Add subcommand to print output

[cromega]

Right now there is no way to get the output of root terraform modules that doesn't involve running terraform manually. It would be nice if there was an astro output command, maybe even an optional flag for apply to print the output of each module when they finished.

astro output --config x.yaml --modules y,z
#
astro apply --output

[dansimau]

You can view the logs of all previous commands that were run by manually looking in the .astro directory:

.astro/<sessionID>/<module>/logs/

There should be a log file in there corresponding to the command run (e.g. plan.log or apply.log).

However, I agree it would be good to have a way to navigate these easily through the astro CLI. I imagine being able to go back in time and see the output from any previous command that has been run, e.g.:

# List sessions
astro ls

# Show logs for session
astro output [session id] [--modules <module,names>]